A synchronous adjustment mechanism for the elevation and sighting direction of optoelectronic equipment

Abstract

The present invention relates to the technical field of vehicle-mounted optoelectronic equipment, and more particularly to a synchronous adjustment mechanism for the elevation and sighting direction of optoelectronic equipment, comprising a mounting plate, a small pulley and a large pulley being rotatably mounted on the front side wall of the mounting plate, a tension spring being hingedly connected to the rear side wall of the large pulley, the upper end of the tension spring being hingedly connected to the front side wall of the mounting plate, two meshing sector gears being rotatably mounted on the left and right sides of the large pulley, a steel belt being wound between the small pulley and the pulley, and the ends of the steel belt being fixed to the two sector gears, an angle plate being mounted on the front side wall of the left sector gear, a compression spring assembly with adjustable tension being provided on the right side wall of the upper end of the angle plate, the other end of the compression spring assembly being connected to the upper end of the large pulley, and a drive mechanism for transmission abutment being further provided on the left side of the bottom of the large pulley. The present invention adopts a combined drive design method, has a compact structure, is simple and convenient to operate, has high reliability, and can effectively meet the reliability requirements of the mechanism operation in high and low temperature environments.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted optoelectronic equipment, and in particular to a pitch-and-fall synchronous adjustment mechanism for an aiming line of sight of optoelectronic equipment. Background Art

[0002] Vehicle-mounted optoelectronic equipment is an important part of the fire control system of armored vehicles. It is responsible for searching, observing targets, and aiming and shooting at targets day and night. With the requirements for all-weather and all-day combat use of modern weapons and equipment and the rapid development of night vision device technology, the traditional low-light night vision of optoelectronic equipment has been gradually replaced by infrared thermal imaging night vision. Infrared thermal imaging is widely used in night vision observation and aiming channels due to its high detection sensitivity, ability to penetrate smoke, and ability to identify camouflage, which greatly improves the night combat performance of armored vehicles. However, due to the different optical bands of infrared and visible light, it is difficult to achieve day and night unified observation and aiming using a common window design. Therefore, it is worthwhile to design an adjustment mechanism with a simple structure, good assembly and adjustment processability, and high reliability. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention aims to disclose a design scheme for a synchronous pitch adjustment mechanism of the sight line of periscope day and night integrated optoelectronic equipment, so as to realize the synchronous pitch adjustment function of the periscope optical path (visible light, laser, etc.) and the direct-view optical path (infrared thermal imager), and solve the following technical problems: 1) Solving the precise synchronous adjustment of the pitch of the periscope optical path (through the deflection of the reflector) and the direct-view optical path; 2) Solving the working reliability requirements of the adjustment mechanism in the high / low temperature, shock / vibration environment of the tank.

[0004] The present invention is achieved through the following technical solutions:

[0005] The transmission gear of the present invention is connected with the transmission gear of the present invention to the transmission gear of the the transmission gear of the the transmission gear, and the transmission gear of the the transmission gear is connected with the transmission gear of the the transmission gear to the transmission gear of the the transmission gear.

[0006] Preferably, the small pulley and the large pulley are rotatably mounted on the mounting plate via the infrared thermal imager shaft and the reflector shaft respectively, and the outer diameter ratio of the large pulley to the small pulley is 2:1.

[0007] Preferably, the compression spring assembly includes a moving rod, a sleeve, a nut and a compression spring. The moving rod is slidably inserted in the sleeve, the left end of the moving rod is connected to the angle plate, and the right end of the sleeve is connected to the large pulley through a fixed seat. At the same time, the nut is threadedly sleeved on the moving rod, and the compression spring is abutted between the nut and the fixed seat of the sleeve, and the compression spring is sleeved on the moving rod and the sleeve.

[0008] Preferably, the driving mechanism includes a driving handle, a push rod, an arc rod and a guide sleeve; the left end of the driving handle is rotatably mounted on the mounting plate, and the driving handle also includes a hinged push rod, which is vertically slidably inserted into the guide sleeve, and the guide sleeve is fixed to the mounting plate. The upper end of the push rod is in contact with the bottom left end of the large pulley, and the mounting plate also includes the arc rod, which has an arc groove for the right end of the driving handle to pass through.

[0009] Preferably, it further includes an installed protective shell, wherein the protective shell cover is provided on the small pulley and the large pulley, and the bottom of the protective shell also includes a through hole for the upper end of the push rod to pass through.

[0010] The present invention has the following beneficial effects:

[0011] 1) The present invention adopts a combined drive design. The entire mechanism consists of a drive handle, a push rod, a large pulley, a tension spring, a steel belt, a small pulley, an infrared thermal imager shaft and a reflector shaft, etc., which has the advantages of compact structure, simple and convenient operation and high reliability.

[0012] 2) The large pulley of the present invention adopts an adjustable tension mechanism design, which can effectively meet the working reliability requirements of the adjustment mechanism under the high / low temperature, impact / vibration environment of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a simplified diagram of the pitch synchronization adjustment mechanism according to an embodiment of the present invention.

[0015] Figure 2 Schematic diagram of the synchronous adjustment transmission in the pitch direction according to an embodiment of the present invention; (a) is a schematic diagram in the pitch direction; (b) is a schematic diagram in the elevation direction.

[0016] Figure 3This is a schematic diagram of the large pulley adjustable tension mechanism according to an embodiment of the present invention.

[0017] Figure 4 Schematic diagram of high and low temperature tension adjustment of the large pulley according to an embodiment of the present invention; (a) shows the inner rotation of the sector gear (high temperature environment); (b) shows the outer rotation of the sector gear (low temperature environment).

[0018] In the figure: 1-mounting plate, 2-small pulley, 21-infrared thermal imager shaft, 3-large pulley, 31-reflector shaft, 4-tension spring, 5-sector gear, 6-steel belt, 7-angle plate, 8-compression spring assembly, 81-moving rod, 82-sleeve, 83-nut, 84-compression spring, 85-fixed seat, 9-driving mechanism, 91-driving handle, 92-push rod, 93-arc rod, 94-guide sleeve, 10-protective shell. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] See also Figure 1-4 The present invention provides a synchronous adjustment mechanism for the pitch and elevation of the sighting line of an optoelectronic equipment, including a mounting plate 1, on the front side wall of the mounting plate 1, a small pulley 2 and a large pulley 3 are rotatably installed, a tension spring 4 is hinged on the rear side wall of the large pulley 3, and the upper end of the tension spring 4 is hinged to the front side wall of the mounting plate 1, and two meshing sector gears 5 are rotatably installed on the left and right sides of the large pulley 3, a steel belt 6 is wound around the small pulley 2 and the pulley, and the two ends of the steel belt 6 are respectively fixed on the two sector gears 5, and an angle plate 7 is installed on the front side wall of the left sector gear 5, and a tension-adjustable compression spring assembly 8 is provided on the right side wall of the upper end of the angle plate 7, and the other end of the compression spring assembly 8 is connected to the upper end of the large pulley 3, and the bottom left side of the large pulley 3 also includes a transmission abutment drive mechanism 9 for driving the large pulley 3 to rotate.

[0021] In the embodiment of the present invention, the small pulley 2 and the large pulley 3 are rotatably mounted on the mounting plate 1 via the infrared thermal imager shaft 21 and the reflector shaft 31, respectively. The outer diameter ratio of the large pulley 3 to the small pulley 2 is 2:1. Since the periscope optical path is deflected and the pitch angle is adjusted through the reflector, and the infrared thermal imager is directly adjusted in pitch angle through its infrared thermal imager shaft 21, the transmission ratio between the reflector shaft 31 and the infrared thermal imager shaft 21 should be 1:2 to achieve the synchronous pitch adjustment function. Figure 2 shown.

[0022] To adjust the elevation, push the drive handle 91, which moves the push rod 92 up and down, rotating the large pulley 3 to adjust the reflector's elevation. The large pulley 3, through a steel belt 6, drives the small pulley 2 to adjust the infrared thermal imager's elevation. The transmission ratio between the large pulley 3 and the small pulley 2 is 1:2, ensuring synchronized adjustment between the periscope's optical path and the infrared thermal imager. A tension spring 4 guides one side of the large pulley 3, ensuring a zero-backlash transmission mechanism even under the shock and vibration conditions of the vehicle.

[0023] In an embodiment of the present invention, the compression spring assembly 8 includes a moving rod 81, a sleeve 82, a nut 83 and a compression spring 84. The moving rod 81 is slidably inserted into the sleeve 82. The left end of the moving rod 81 is connected to the angle plate 7, and the right end of the sleeve 82 is connected to the large pulley 3 through the fixed seat 85. At the same time, a nut 83 is threaded on the moving rod 81, and a compression spring 84 is abutted between the nut 83 and the fixed seat 85 of the sleeve 82, and the compression spring 84 is sleeved on the moving rod 81 and the sleeve 82.

[0024] The driving mechanism 9 includes a driving handle 91, a push rod 92, a curved rod 93, and a guide sleeve 94. The left end of the driving handle 91 is rotatably mounted on the mounting plate 1. The driving handle 91 also includes a hinged push rod 92, which slides vertically and is inserted into the guide sleeve 94. The guide sleeve 94 is fixed to the mounting plate 1. The upper end of the push rod 92 abuts against the bottom left end of the large pulley 3. The mounting plate 1 also includes a curved rod 93, which has an arc groove for the right end of the driving handle 91 to pass through. It also includes a protective shell 10 installed. The protective shell 10 covers the small pulley 2 and the large pulley 3. At the same time, the bottom of the protective shell 10 also includes a through hole for the upper end of the push rod 92 to pass through. When the above-mentioned arc groove cooperates with the driving handle 91, after the driving handle 91 is pitched and adjusted, the position of the driving handle 91 needs to be locked, so a locking mechanism is required to lock the driving handle 91 on the arc groove. However, the specific locking mechanism here is a publicly known structure known to those skilled in the art. As long as the technical effect of locking can be achieved, the locking mechanism will not be described in detail here.

[0025] In order to effectively eliminate the undesirable conditions such as transmission backlash caused by the extension of the steel belt 6 in a high temperature environment and the mechanism rotation jam caused by the contraction of the steel belt 6 in a low temperature environment, an adjustable tension mechanism is designed on the large pulley 3, which is composed of components such as the sector gear 5, the angle plate 7 and the compression spring assembly 8. Figure 3As shown. A pair of intermeshing sector gears 5 are designed on the large pulley 3. The two ends of the steel belt 6 are fixed to the sector gear 5 respectively. An angle plate 7 is installed on one side of the sector gear 5. The tension of the compression spring 84 is adjusted by the nut 83. The tension of the compression spring 84 is transmitted to the sector gear 5 through the angle plate 7. In a high temperature environment, the steel belt 6 stretches, the compression spring 84 releases the tension, the sector gear rotates inward, tightening the steel belt 6 and eliminating rotation backlash; in a low temperature environment, the steel belt 6 contracts, the compression spring 84 is further compressed, the sector gear 5 rotates outward, and the tension of the steel belt 6 is slowly released, ensuring a smooth rotation mechanism without jamming. Figure 4 As shown, the requirements for the use of the regulating mechanism in high and low temperature environments are met.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A synchronous adjustment mechanism for the elevation and sighting direction of an optoelectronic equipment, comprising a mounting plate (1), characterized in that: The front side wall of the mounting plate (1) is respectively rotatably mounted with a small pulley (2) and a large pulley (3), the rear side wall of the large pulley (3) is hinged with a tension spring (4), the upper end of the tension spring (4) is hinged with the front side wall of the mounting plate (1), and the left and right sides of the large pulley (3) are respectively rotatably mounted with two meshing sector gears (5), a steel belt (6) is wound around the small pulley (2) and the pulley, and the two ends of the steel belt (6) are respectively fixed on the two sector gears (5), an angle plate (7) is mounted on the front side wall of the sector gear (5) on the left side, and a tension-adjustable compression spring assembly (8) is provided on the right side wall of the upper end of the angle plate (7), and the other end of the compression spring assembly (8) is connected to the upper end of the large pulley (3), and the bottom left side of the large pulley (3) also includes a transmission abutment driving mechanism (9) for driving the large pulley (3) to rotate; The small pulley (2) and the large pulley (3) are rotatably mounted on the mounting plate (1) via the infrared thermal imager rotating shaft (21) and the reflector rotating shaft (31), respectively, and the outer diameter ratio of the large pulley (3) to the small pulley (2) is 2:1; The compression spring assembly (8) comprises a moving rod (81), a sleeve (82), a nut (83) and a compression spring (84). The moving rod (81) is slidably inserted into the sleeve (82). The left end of the moving rod (81) is connected to the angle plate (7). The right end of the sleeve (82) is connected to the large pulley (3) through a fixed seat (85). At the same time, the nut (83) is threadedly sleeved on the moving rod (81). The compression spring (84) is abutted between the nut (83) and the fixed seat (85) of the sleeve (82), and the compression spring (84) is sleeved on the moving rod (81) and the sleeve (82).

2. The optoelectronic equipment sighting line pitch synchronous adjustment mechanism according to claim 1, characterized in that: The driving mechanism (9) comprises a driving handle (91), a push rod (92), an arc rod (93) and a guide sleeve (94); the left end of the driving handle (91) is rotatably mounted on the mounting plate (1); the driving handle (91) further comprises a hinged push rod (92); the push rod (92) is vertically slidably inserted into the guide sleeve (94); the guide sleeve (94) is fixed on the mounting plate (1); the upper end of the push rod (92) abuts against the bottom left end of the large pulley (3); the mounting plate (1) further comprises the arc rod (93); the arc rod (93) is provided with an arc groove for the right end of the driving handle (91) to pass through.

3. The optoelectronic equipment sighting line pitch synchronous adjustment mechanism according to claim 2, characterized in that: The invention also includes a protective shell (10) installed, wherein the protective shell (10) is arranged on the small pulley (2) and the large pulley (3), and the bottom of the protective shell (10) also includes a through hole for the upper end of the push rod (92) to pass through.

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