Quick release structure of support lug seat

Abstract

The invention discloses a quick release structure for a support lug seat. The quick release structure comprises a base, the support lug seat, a wedge block and a driving unit, side square edges are arranged on the front side and the rear side of the base correspondingly, and sliding grooves in the left-right direction are formed in the inner side faces of the two side square edges correspondingly. The supporting lug base is arranged between the two side square edges, and clamping grooves are formed in the left end and the right end of the supporting lug base; the two clamping grooves are each internally provided with one wedge block, and the two ends of each wedge block are inserted into the two sliding grooves correspondingly. The driving unit is used for driving the wedge block to move in the left-right direction. The locking device is relatively simple in structure, reliable in locking, convenient to operate and capable of being suitable for the heavy-load working condition.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of supporting ears, and particularly relates to a supporting ear seat quick release structure. BACKGROUND

[0002] In the array antenna vehicle, support vehicle, emergency rescue vehicle and other equipment fields that need to lift a large load from a horizontal position to a certain angle, and require "mobility, quick deployment, high precision and quick withdrawal", a lifting device is a key mechanism for quickly converting the load from a horizontal transportation state to a certain angle or a vertical state. As a core actuator of the device, the lifting electric cylinder is usually hinged to the vehicle frame and the load through supporting ear seats at both ends. In order to ensure the mobility, maintainability and quick response capability of the equipment, the supporting ear seat at the connection between the lifting electric cylinder and the vehicle frame needs to have a quick release function. At present, the mounting structure of such heavy load connection parts is mostly borrowed from traditional mechanical connection methods, such as using pin shaft connection supplemented by split pin or bolt fastening. The disassembly and assembly process needs to manually align the pin hole and install / dismantle the fasteners, which is complicated and time-consuming. Some solutions use rotary locks or eccentric cam mechanisms, but their locking force is limited and they are prone to looseness when bearing a large lifting torque and impact vibration, which is insufficient in reliability. In addition, although some complex quick release mechanisms can achieve good locking, they are often complex in structure, have many parts, and have problems such as high manufacturing cost, large space occupation and high failure rate, which cannot meet the strict requirements of high reliability, high maintainability and quick operation in harsh environments. In particular, the supporting ear seat connection point of the lifting electric cylinder not only needs to transmit a large load, but also directly affects the preparation time of the equipment. Therefore, there is an urgent need for a supporting ear seat quick release structure that is relatively simple in structure, reliable in locking, convenient to operate and suitable for heavy load working conditions, so as to realize the quick connection and separation of the lifting electric cylinder and the vehicle frame. SUMMARY

[0003] The technical problem to be solved by the application is to provide a supporting ear seat quick release structure that is relatively simple in structure, reliable in locking, convenient to operate and suitable for heavy load working conditions, in view of the deficiencies in the prior art.

[0004] To solve the above technical problems, the technical scheme adopted by the application is as follows: a supporting ear seat quick release structure, comprising a base, a supporting ear seat, a wedge block and a driving unit. The front and rear sides of the base are provided with side bars, and the inner sides of the two side bars are provided with left-right direction sliding grooves. The supporting ear seat is arranged between the two side bars, and the left and right ends of the supporting ear seat are provided with clamping grooves. One wedge block is arranged in each of the two clamping grooves, and the two ends of the wedge block are respectively inserted into the two sliding grooves. The driving unit is used to drive the wedge block to move in the left-right direction.

[0005] The above-mentioned quick-release structure for the support lug includes a drive unit comprising a left-right helical double-acting screw, which passes through the support lug and extends from both ends of the support lug to the outside; both wedges have internal threads that engage with the external threads of the left-right helical double-acting screw, and the two wedges are respectively threaded and installed with the threaded segments at both ends of the left-right helical double-acting screw. When the left-right double-acting lead screw rotates, the two wedges move closer to each other or move further apart synchronously. In the aforementioned quick-release bracket structure, the middle part of the left-right helical double-acting lead screw is supported by a fixed bearing inside the bracket.

[0006] In the aforementioned quick-release structure of the support lug, both ends of the left and right helical double-acting screw are equipped with dustproof rings, which are used to seal the threaded holes of the wedge block.

[0007] In the aforementioned quick-release bracket structure, the upper surface of the base is provided with a groove for embedding the bracket.

[0008] Compared with existing technologies, this invention has the following advantages: The invention utilizes side ribs with sliding grooves on both sides of the base, which cooperate with wedges in the slots at both ends of the support lugs. A drive unit controls the wedges to move along the sliding grooves, achieving rapid locking and disengagement of the support lugs. The bidirectional insertion of the wedges into the sliding grooves ensures the symmetry and stability of the locking force, effectively withstanding the enormous torque and impact loads of the electric cylinder during operation, avoiding the risk of loosening under heavy loads associated with traditional pin connections or rotary locks. The introduction of the drive unit eliminates the need for manual hammering during the locking process, significantly improving assembly and disassembly efficiency and meeting stringent requirements for rapid response and efficient maintenance. Simultaneously, the overall structure is simple and compact, overcoming the problems of numerous parts, cumbersome operation, and large space occupation associated with existing complex quick-release mechanisms, reducing manufacturing and maintenance costs while ensuring high reliability.

[0009] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the lug positioning.

[0011] Figure 2 for Figure 1 A sectional view.

[0012] Figure 3 This is a diagram showing the usage state of the present invention.

[0013] Explanation of reference numerals in the attached figures: Detailed Implementation

[0014] like Figure 1 As shown in Figure 3, a quick-release structure for a support lug includes a base 1, a support lug 2, a wedge block 3, and a drive unit. The base 1 has side ribs 4 on both the front and rear sides, and the inner sides of the two side ribs 4 are provided with sliding grooves 5 in the left and right directions. The ear support 2 is arranged between the two side ribs 4, and the left and right ends of the ear support 2 are provided with a mounting groove 6. Each of the two mounting slots 6 is provided with a wedge block 3, and the two ends of the wedge block 3 are respectively inserted into the two sliding grooves 5; The driving unit is used to drive the wedge block 3 to move in the left and right direction.

[0015] In one embodiment, the drive unit includes a left-right helical double-acting screw 7, which passes through a lug 2 and extends from the lug 2 to the outside; both wedges 3 have internal thread structures that engage with the external threads of the left-right helical double-acting screw 7, and the two wedges 3 are respectively threaded and installed with the threaded segments at both ends of the left-right helical double-acting screw 7. When the left-right double-acting lead screw 7 rotates, the two wedges 3 move closer to each other or move further away from each other synchronously. By setting a left-right turning bidirectional lead screw 7 as the drive unit and simultaneously engaging with the internal thread structure of the two wedges 3, the synchronous control of the opposing or receding movements of the two wedges 3 can be achieved using only a single drive source. This design ensures a high degree of synchronicity and symmetry in the movement of the wedges 3, effectively solving the asynchronous problems that may occur with traditional independent drives (such as the misalignment of the lug 2 and uneven locking force caused by the jamming or lag of a single wedge 3). This ensures that the lug 2 is subjected to balanced force during locking and unlocking, avoiding structural deformation or wear caused by asymmetrical force, and significantly improving the reliability and smoothness of operation of the quick-release structure.

[0016] In one embodiment, the middle part of the left-right helical double-acting lead screw 7 is supported by a fixed bearing 8 inside the lug seat 2.

[0017] By setting a fixed bearing 8 in the middle to support the left-right double-acting lead screw 7, a stable rotation center is provided for the lead screw, and the working load is effectively distributed. This solves the problems of deflection and vibration that easily occur in the left-right double-acting lead screw 7 during transmission due to cantilever support or large span. This support method reduces the risk of radial runout and deformation of the lead screw, ensuring the smoothness and accuracy of the threaded transmission. Especially when subjected to heavy loads (such as the support reaction force of the erecting electric cylinder), it can reduce the bending stress of the lead screw, extend its fatigue life, and maintain the synchronicity of the movement of the wedge block 3 so as not to be lost due to shaft deflection.

[0018] In one embodiment, dust rings 9 are installed at both ends of the left-hand and right-hand bidirectional lead screw 7, and the dust rings 9 are used to seal the threaded holes of the wedge block 3.

[0019] By installing dust rings 9 at both ends of the left-hand and right-hand double-acting lead screw 7, an effective seal is formed over the threaded holes of the wedge block 3, solving the problem of external contaminants (such as sand and moisture) easily penetrating the threaded pair, leading to wear, corrosion, or jamming. This is especially important for long-term use in harsh outdoor environments. The dust rings 9 protect the precision threaded mating surfaces, maintain transmission efficiency, and prevent thread engagement failure caused by rust or embedded particles, thus ensuring the durability and functional reliability of the quick-release structure under harsh working conditions.

[0020] In one embodiment, the upper surface of the base 1 is provided with a bottom groove 10 for the insertion of the lug 2.

[0021] By creating a groove 10 on the upper surface of the base 1 for the lug 2 to embed, precise positioning and additional vertical support are provided for the lug 2, solving the problem of minor displacement or wobbling that may occur when the lug 2 is only laterally constrained on the base 1. This design enhances the stability of the lug 2 under vertical loads, prevents displacement caused by uneven foundations or vibrations, ensures the alignment accuracy of the wedge 3 and the slide 5, makes the locking state of the quick-release structure more stable, and simplifies the alignment adjustment process during installation, improving assembly accuracy and efficiency.

[0022] In use, the present invention first places the lug 2 between the two side ribs 4 of the base 1, ensuring its proper positioning. Then, by operating the drive unit (e.g., rotating the left-right double-acting screw 7), the two wedges 3 are driven to move synchronously towards each other within the locking grooves 6 at both ends of the lug 2 along the sliding grooves 5 on the side ribs 4 of the base 1. During movement, the wedges 3 wedge against the sliding grooves 5, thus firmly locking the lug 2 to the base 1 from both sides, achieving quick installation and reliable fixation. When disassembly is required, the drive unit is operated in the opposite direction (e.g., rotating the left-right double-acting screw 7 in the opposite direction), causing the two wedges 3 to move synchronously in opposite directions, releasing the wedge constraint on the lug 2, allowing it to be removed from the base 1 for quick separation. This process avoids the cumbersome tightening or hammering operations required by traditional bolt or pin connections, significantly improving assembly and disassembly efficiency, and is especially suitable for applications requiring frequent maintenance or replacement.

[0023] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A quick-release structure for a lug mount, characterized in that, Includes base, lugs, wedges, and drive unit; The base has side ribs on both the front and rear sides, and the inner sides of the two side ribs are provided with sliding grooves in the left and right directions. The support lugs are arranged between the two side ribs, and each of the left and right ends of the support lugs is provided with a mounting groove. Each of the two mounting slots is provided with a wedge block, and the two ends of the wedge block are respectively inserted into the two sliding grooves; The drive unit is used to drive the wedge to move in the left and right direction.

2. The quick-release structure for the lug seat according to claim 1, characterized in that, The drive unit includes a left-hand and right-hand bidirectional lead screw, which passes through a lug seat and extends from the lug seat to the outside at both ends; both wedges have internal thread structures that mate with the external threads of the left-hand and right-hand bidirectional lead screw, and the two wedges are respectively threaded and installed with the threaded segments at both ends of the left-hand and right-hand bidirectional lead screw. When the left-right double-acting lead screw rotates, the two wedges move closer to each other or move further apart synchronously.

3. A quick-release structure for a support lug as described in claim 2, characterized in that, The middle part of the left-right helical double-acting lead screw is supported by a fixed bearing inside the lug seat.

4. A quick-release structure for a support lug as described in claim 2, characterized in that, Both ends of the left-hand and right-hand double-acting lead screw are equipped with dustproof rings, which are used to seal the threaded holes of the wedge block.

5. A quick-release structure for a support lug as described in claim 1, characterized in that, The upper surface of the base has a groove for the insertion of the lug seat.

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