A leveling leg unfolding and folding mechanism of an antenna vehicle

Abstract

The application belongs to the technical field of antenna radar, and discloses a kind of antenna car leveling leg unfolding and folding mechanism, detachably symmetrical, vertically installed on antenna car, including fixed mechanism, electric cylinder and unfolding and folding mechanism, the fixed mechanism includes bottom plate and support beam, the unfolding and folding mechanism includes base, special-shaped sliding block, upper connecting rod, lower connecting rod, middle rod and support leg, support beam and base are fixed on bottom plate, the bottom of electric cylinder is movably connected with support beam, the head of electric cylinder is movably connected with one end of special-shaped sliding block, special-shaped sliding block slides along the sliding slot in base, one end of middle rod is connected with special-shaped sliding block, and the other end is connected with support leg, both ends of upper connecting rod and lower connecting rod are respectively connected with support leg and base and form parallelogram mechanism, middle rod is between upper connecting rod and lower connecting rod, electric cylinder retracts and expands through special-shaped sliding block to drive middle rod to slide, and then unfold or fold parallelogram mechanism, and make the sleeve on support leg always keep vertical state.

Description

Technical Field

[0001] This invention relates primarily to the field of antenna and radar technology, and in particular to an antenna vehicle leveling leg deployment and retraction mechanism. Background Technology

[0002] Modern warfare has entered the era of electronic warfare and information warfare. Antenna radar vehicles are widely used in modern warfare. Their main feature is that they can be deployed at any time, withdrawn quickly and transferred at any time without requiring a large number of operators and auxiliary resources. They have a certain off-road capability and can operate without a fixed position, which greatly improves their battlefield survivability.

[0003] The application scenarios of antenna vehicles have strict requirements on their mobility. Currently, the leveling leg extension and retraction mechanisms of antenna vehicles mainly adopt hydraulic drive, which has a relatively complex structure, a cumbersome maintenance process, and requires a certain amount of time to reach working status. Therefore, it cannot achieve maximum efficiency in practical applications.

[0004] Therefore, there is an urgent need to design a new type of antenna vehicle leveling leg deployment and retraction mechanism to simplify the structure and improve efficiency. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides an antenna vehicle leveling leg deployment and retraction mechanism, which improves the reliability of the radar electric mounting and dismantling mechanism, makes it easy to maintain, and is lightweight, small and integrated.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: An antenna vehicle leveling leg deployment and retraction mechanism is detachably and symmetrically mounted vertically on the antenna vehicle. It includes a fixing mechanism, an electric cylinder, and a deployment and retraction mechanism. The fixing mechanism includes a base plate and a support beam. The deployment and retraction mechanism includes a base, a shaped slider, an upper connecting rod, a lower connecting rod, a middle rod, and support legs. The support beam and base are both fixed to the base plate. The bottom of the electric cylinder is movably connected to the support beam, and the head of the electric cylinder is movably connected to one end of the shaped slider. The shaped slider slides along a groove in the base. One end of the middle rod is connected to the shaped slider, and the other end is connected to the support leg. Both ends of the upper and lower connecting rods are connected to the support leg and the base, respectively, forming a parallelogram mechanism. The middle rod is located between the upper and lower connecting rods. The extension and retraction of the electric cylinder drives the middle rod to slide via the shaped slider, thereby unfolding or retracting the parallelogram mechanism, ensuring that the sleeve on the support leg remains vertical.

[0007] Furthermore, the irregularly shaped slider includes a gripper, with a sliding arm on the left and an electric cylinder connection on the right. A groove is provided on the base, and the sliding arm is limited to slide within the groove. The sliding arm is connected to the central rod, and the electric cylinder connection is connected to the head of the electric cylinder through a rotary joint.

[0008] Furthermore, the right end of the upper connecting rod is hinged to the upper side of the base, the left end of the upper connecting rod is hinged to the upper end of the support leg, the right end of the lower connecting rod is hinged to the lower side of the base, and the left end of the lower connecting rod is hinged to the middle of the support leg. The right end of the upper connecting rod, the left end of the upper connecting rod, the right end of the lower connecting rod, and the left end of the lower connecting rod form a parallelogram mechanism.

[0009] Furthermore, the fixing mechanism also includes a locking block and an unlocking ring. The locking block is fixed to the base plate, and the unlocking ring is movably fitted onto the locking block.

[0010] Furthermore, the unfolding and retracting mechanism also includes a gripper, which is hinged to the gripper portion of the irregularly shaped slider.

[0011] Furthermore, the irregularly shaped slider drives the gripper to move downwards, and the gripper unfolds and moves downwards along the surface in contact with the locking block until the lower end of the locking block retracts inwards by its own weight, completing the locking action; the irregularly shaped slider drives the gripper to move further downwards, unfolds along the surface in contact with the unlocking ring to lock the unlocking ring, and the irregularly shaped slider then drives the gripper to move upwards, carrying the unlocking ring upwards synchronously, until the bottom of the gripper unfolds along the contact surfaces of the unlocking ring and the locking block in sequence, completing the unlocking.

[0012] Beneficial effects: This invention provides an antenna vehicle leveling leg extension and retraction mechanism. It utilizes an irregularly shaped slider that cooperates with the base and a parallelogram mechanism to restrict the movement trajectory of the support leg during movement. Power is provided by an electric cylinder to realize the extension and retraction of the support leg. While meeting the force requirements, it simplifies the structure, improves the extension and retraction efficiency of the mechanism, is easy to maintain, and is lightweight, small, and integrated, making it easy to promote and use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention in its unfolded state; Figure 2 This is a schematic diagram of the structure in the folded state of the present invention; Figure 3 This is a schematic diagram showing the cooperation between the irregularly shaped slider, the base, and the gripper of the present invention; Figure 4 This is a schematic diagram showing the cooperation between the gripper, locking block, and unlocking ring of the present invention; Figure 5 This is a schematic diagram showing the connection between the upper connecting rod, lower connecting rod, middle rod, base, and support leg of the present invention; In the picture: 1. Fixing mechanism; 11. Base plate; 12. Support beam; 13. Locking block; 14. Unlocking ring; 2. Electric cylinder; 3. Deployment and retraction mechanism; 31-Irregularly shaped slider; 31-1. Gripper; 31-2. Sliding arm; 31-3. Electric cylinder connection; 32. Gripper; 33. Base; 34. Upper connecting rod; 34-1. Right end of upper connecting rod; 34-2. Left end of upper connecting rod; 35. Lower connecting rod; 35-1. Right end of lower connecting rod; 35-2. Left end of lower connecting rod; 36. Middle rod; 37. Support leg. Detailed Implementation

[0014] The preferred mechanism and method of motion implementation of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] like Figures 1-4 As shown, an antenna vehicle leveling leg deployment and retraction mechanism is detachably and symmetrically mounted vertically on the antenna vehicle, including a fixing mechanism 1, an electric cylinder 2, and a deployment and retraction mechanism 3. Figures 1-2 Only the state on the left is shown.

[0016] The fixing mechanism 1 includes a base plate 11, a support beam 12, a locking block 13, and an unlocking ring 14. The base plate 11 is detachably connected to the antenna vehicle. The support beam 12 has a symmetrical structure, is set on the upper side of the base plate 11, and is fixedly connected to the base plate 11. The locking block 13 is fixed on the base plate 11, and the unlocking ring 14 is movably sleeved on the locking block 13.

[0017] The bottom of the electric cylinder 2 is rotatably connected to the upper end of the support beam 12 via a pin, and the head of the electric cylinder 2 is movably connected to the electric cylinder connecting part 31-3 on the right side of the irregular slider 31 of the unfolding mechanism 3 via a rotary joint.

[0018] The unfolding and retracting mechanism 3 includes a base 33, an irregularly shaped slider 31, a gripper 32, an upper connecting rod 34, a lower connecting rod 35, a middle rod 36, and a support leg 37. The support leg 37 is provided with a sleeve, which is used to connect with other support structures, such as a support rod that supports the ground.

[0019] The base 33 is fixed on the base plate 11 and supports the unfolding mechanism 3. The irregular slider 31 includes three parts: left, middle and right. The middle part is the gripper part 31-1 for hinged gripper 32. The left side of the gripper part 31-1 is the sliding arm 31-2. The upper part of the base 33 is provided with an inclined groove. The sliding arm of the irregular slider 31 is limited to slide in the groove. The other end of the sliding arm is connected to one end of the middle rod 36. The right side of the gripper part 31-1 is the electric cylinder connecting part 31-3, which is connected to the head of the electric cylinder through a rotary joint.

[0020] When the electric cylinder 2 extends and retracts, the bottom of the electric cylinder 2 rotates around the pin shaft, and its head pulls the irregularly shaped slider 31 to move along the inner groove of the base 33, thereby driving the middle rod 36 to move.

[0021] The irregularly shaped slider 31 drives the gripper 32 to move downwards or upwards, thereby locking or unlocking it with the locking block 13. The gripper part of the irregularly shaped slider 31 is H-shaped, and the gripper 32 is hinged to the gripper part.

[0022] like Figure 4 As shown, when locking is required, the irregularly shaped slider 31 drives the gripper 32 to move downward. When the gripper 32 moves down and contacts the locking block 13, the gripper 32 unfolds along the surface in contact with the locking block 13. After moving further down to the lower end of the locking block 13, the gripper 32 retracts inward by its own gravity, completing the locking action.

[0023] When unlocking is required, the irregularly shaped slider 31 drives the gripper 32 to move further down, unfolding along the contact surface with the unlocking ring 14 to lock the unlocking ring 14. Then, the irregularly shaped slider 31 drives the gripper 32 to move up, carrying the unlocking ring 14 up synchronously. The upper part of the unlocking ring 14 contacts the locking block 13. When the irregularly shaped slider 31 moves further up, the bottom of the gripper 32 unfolds along the contact surface of the unlocking ring 14 and the locking block 13 in sequence, and finally returns to the upper side plane of the locking block 13, thereby disengaging from the locking block 13 and completing the unlocking.

[0024] Both ends of the upper connecting rod 34 and the lower connecting rod 35 are connected to the support leg 37 and the base 33, respectively. Specifically, the right end 34-1 of the upper connecting rod is hinged to the upper side of the base 33, the left end 34-2 of the upper connecting rod is hinged to the upper end of the support leg 37, the right end 35-1 of the lower connecting rod is hinged to the lower side of the base 33, and the left end 35-2 of the lower connecting rod is hinged to the middle of the support leg 37. The right end 34-1 of the upper connecting rod, the left end 34-2 of the upper connecting rod, the right end 35-1 of the lower connecting rod, and the left end 35-2 of the lower connecting rod form a parallelogram mechanism.

[0025] One end of the middle rod 36 is connected to the sliding arm of the irregularly shaped slider 31, and the other end is connected to the upper part of the support leg 37, that is, it is located between the left end 34-2 of the upper connecting rod and the left end 35-2 of the lower connecting rod. When the electric cylinder 2 moves in extension and retraction, it drives the middle rod 36 to move, thereby driving the upper connecting rod 34 and the lower connecting rod 35 to unfold or fold.

[0026] The advantage of designing a parallelogram mechanism is that, regardless of whether the electric cylinder 2 is extending or retracting, the sleeve on the support leg 37 can always remain vertical, eliminating the need for leveling.

[0027] The working process of the antenna car leveling leg deployment and retraction mechanism in this embodiment: When unfolded, the head of the electric cylinder 2 pushes outward, transmitting motion to the irregularly shaped slider 31. The irregularly shaped slider 31 slides downward along the groove of the base 33, further transmitting motion to the central rod 36 connected to the irregularly shaped slider 31 via a pin. The central rod 36 drives the parallelogram mechanism composed of the upper connecting rod 34 and the lower connecting rod 35 to move downward, thereby driving the support leg 37 to move to the designated working state. At the same time, the gripper 32 follows the movement of the irregularly shaped slider 31 and locks with the locking block 13, and the antenna vehicle leveling leg unfolding and retracting mechanism reaches the working state.

[0028] When folding, the electric cylinder 2 moves further downward, the gripper 32 locks with the unlocking ring 14, the electric cylinder 2 retracts, and drives the irregularly shaped slider 31 to slide upward along the groove of the base 33. The irregularly shaped slider 31 drives the parallelogram mechanism to move, completing the folding of the antenna vehicle leveling leg extension and retraction mechanism.

[0029] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An antenna vehicle leveling leg deployment and retraction mechanism, characterized in that, The antenna is detachably and symmetrically mounted vertically on the antenna vehicle, including a fixing mechanism (1), an electric cylinder (2), and an extension and retraction mechanism (3). The fixing mechanism (1) includes a base plate (11) and a support beam (12). The extension and retraction mechanism (3) includes a base (33), a shaped slider (31), an upper connecting rod (34), a lower connecting rod (35), a middle rod (36), and a support leg (37). The support beam (12) and the base (33) are both fixed on the base plate (11). The bottom of the electric cylinder (2) is movably connected to the support beam (12), and the head of the electric cylinder (2) is movably connected to one end of the shaped slider (31). The shaped slider (31) moves along... The base (33) slides in the groove. One end of the middle rod (36) is connected to the irregular slider (31), and the other end is connected to the support leg (37). The upper connecting rod, the lower connecting rod, the base and the support leg are hinged to form a parallelogram mechanism through the right end (34-1) of the upper connecting rod, the left end (34-2) of the upper connecting rod, the right end (35-1) of the lower connecting rod and the left end (35-2) of the lower connecting rod. The middle rod (36) is located between the upper connecting rod (34) and the lower connecting rod (35). The electric cylinder (2) extends and retracts, driving the middle rod (36) to slide through the irregular slider (31), thereby unfolding or folding the parallelogram mechanism, and keeping the sleeve on the support leg (37) always vertical. The irregularly shaped slider (31) includes a gripper (31-1), a sliding arm (31-2) on the left side of the gripper (31-1), and an electric cylinder connecting part (31-3) on the right side. A corresponding groove is provided on the base (33), and the sliding arm (31-2) is limited to slide within the groove. The sliding arm is connected to the central rod (36), and the electric cylinder connecting part (31-3) is connected to the head of the electric cylinder through a rotary joint.

2. The antenna vehicle leveling leg deployment and retraction mechanism according to claim 1, characterized in that, The right end (34-1) of the upper connecting rod is hinged to the upper side of the base (33), the left end (34-2) of the upper connecting rod is hinged to the upper end of the support leg (37), the right end (35-1) of the lower connecting rod is hinged to the lower side of the base (33), and the left end (35-2) of the lower connecting rod is hinged to the middle of the support leg (37).

3. The antenna vehicle leveling leg deployment and retraction mechanism according to claim 1, characterized in that, The fixing mechanism (1) further includes a locking block (13) and an unlocking ring (14). The locking block (13) is fixed on the base plate (11), and the unlocking ring (14) is movably sleeved on the locking block (13).

4. The antenna vehicle leveling leg deployment and retraction mechanism according to claim 3, characterized in that, The unfolding and retracting mechanism (3) also includes a gripper (32), which is hinged to the gripper part (31-1) of the irregular slider (31).

5. The antenna vehicle leveling leg deployment and retraction mechanism according to claim 4, characterized in that, The irregularly shaped slider (31) drives the gripper (32) to move downward. The gripper (32) unfolds and moves downward along the surface in contact with the locking block (13) until the lower end of the locking block (13) retracts inward by its own weight, completing the locking action. The irregularly shaped slider (31) drives the gripper (32) to move further downward, unfolding along the contact surface with the unlocking ring (14) to lock the unlocking ring (14). The irregularly shaped slider (31) then drives the gripper (32) to move upward, carrying the unlocking ring (14) upward synchronously, until the bottom of the gripper (32) unfolds along the contact surface of the unlocking ring (14) and the locking block (13) in sequence, completing the unlocking.

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