Cantilever crane sealing plate mechanism of overhead working truck
By installing a sealing mechanism consisting of PVC sealing plates and rubber plates on the boom of the aerial work platform, the sealing problem caused by the movement of the leveling cylinder is solved, achieving effective sealing of the boom and convenient maintenance.
Patent Information
- Application Number
- CN202423044999.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-10
AI Technical Summary
When the leveling cylinder of the aerial work platform boom moves, it cannot be completely sealed, which allows foreign objects to enter the boom and damage internal components, and makes maintenance inconvenient.
A sealing plate mechanism was designed, comprising a PVC sealing plate, a threaded pressure plate, pressure plate bolts, and a rubber plate. The rubber plate has circular holes and oblong holes, through which the piston rod of the leveling cylinder moves. Combined with the pleated structure of the rubber plate, it achieves sealing performance and convenient maintenance.
It achieves effective sealing of the boom, preventing foreign objects from entering, while facilitating the maintenance and repair of internal components.
Smart Images
Figure CN223496121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a boom sealing plate mechanism for aerial work platforms, belonging to the field of aerial work platforms. Background Technology
[0002] The boom of the aerial work platform is equipped with a leveling cylinder. The piston rod of the leveling cylinder extends out of the boom. When the boom moves up and down, the leveling cylinder adjusts the level of the work bucket by extending and retracting the piston rod. Because the movement of the leveling cylinder can cause the boom to not be completely sealed, foreign objects can easily enter the boom and damage the internal components. At the same time, the internal components of the boom also need maintenance. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned deficiencies in the existing technology and to provide a boom sealing plate mechanism for aerial work vehicles with a reasonable structural design.
[0004] The technical solution adopted by this utility model to solve the above problems is: a boom sealing plate mechanism for aerial work vehicles. The sealing plate mechanism is set on the boom, and its structural features are: the sealing plate mechanism includes a PVC sealing plate, a threaded pressure plate, a pressure plate bolt and a rubber plate. The two ends of the rubber plate are installed on the PVC sealing plate through the threaded pressure plate and the pressure plate bolt. The PVC sealing plate is provided with a waist-shaped hole, and the rubber plate is provided with a circular hole.
[0005] Furthermore, a clamping plate is installed on the upper part of the boom, the upper part of the PVC sealing plate is installed on the clamping plate by upper bolts, and the lower part of the PVC sealing plate is installed on the lower part of the boom by lower bolts.
[0006] Furthermore, a leveling cylinder is installed inside the boom. The cylinder barrel of the leveling cylinder is connected to the boom via a first pin. The piston rod of the leveling cylinder is connected to the bucket support via a second pin. The bucket support is connected to the boom via a third pin.
[0007] Furthermore, the piston rod of the leveling cylinder passes through a circular hole and an oblong hole.
[0008] Furthermore, the rubber plate is provided with a pleated structure.
[0009] Compared with the prior art, this utility model has the following advantages: the sealing plate mechanism can seal the head of the boom of the aerial work vehicle, so that the piston rod of the leveling cylinder passes through the circular hole and the oblong hole. When the leveling cylinder adjusts the working bucket horizontally, the piston rod of the leveling cylinder moves freely in the circular hole and the oblong hole, thereby preventing foreign objects from entering the boom and damaging the internal components of the boom, and also facilitating the maintenance of the internal components of the boom. Attached Figure Description
[0010] Figure 1 This is a front view structural schematic diagram of the sealing plate mechanism according to an embodiment of the present utility model.
[0011] Figure 2 This is a left-side structural schematic diagram of the sealing plate mechanism according to an embodiment of the present utility model.
[0012] Figure 3 This is a schematic diagram of the main structure of the rubber sheet according to an embodiment of the present invention.
[0013] Figure 4 This is a schematic diagram of the sealing plate mechanism in use according to an embodiment of the present invention.
[0014] Figure 5 This is a schematic diagram of the sealing plate mechanism in use according to an embodiment of the present invention.
[0015] In the diagram: 1. Upper bolt, 2. Clamping plate, 3. PVC sealing plate, 4. Threaded pressure plate, 5. Pressure plate bolt, 6. Rubber plate, 7. Leveling cylinder piston rod, 8. Lower bolt, 9. Boom, 10. Leveling cylinder barrel, 11. No. 1 pin, 12. No. 2 pin, 13. Bucket support, 14. No. 3 pin, 15. Circular hole, 16. Oblong hole. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0017] Example
[0018] See Figures 1 to 5 As shown in the accompanying drawings, the structures, proportions, sizes, etc., depicted in this specification are merely for illustrative purposes to aid those skilled in the art and to provide a clear understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the use of terms such as "upper," "lower," "left," "right," "middle," and "one" in this specification is solely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0019] In this embodiment, the boom sealing plate mechanism of the aerial work vehicle is installed on the boom 9. The sealing plate mechanism includes a PVC sealing plate 3, a threaded pressure plate 4, a pressure plate bolt 5, and a rubber plate 6. The two ends of the rubber plate 6 are installed on the PVC sealing plate 3 through the threaded pressure plate 4 and the pressure plate bolt 5. The PVC sealing plate 3 is provided with a waist-shaped hole 16, and the rubber plate 6 is provided with a circular hole 15.
[0020] In this embodiment, the upper part of the boom 9 is equipped with a clamping plate 2, the upper part of the PVC sealing plate 3 is installed on the clamping plate 2 by an upper bolt 1, the lower part of the PVC sealing plate 3 is installed on the lower part of the boom 9 by a lower bolt 8, and the rubber plate 6 is provided with a pleated structure.
[0021] In this embodiment, a leveling cylinder is installed inside the boom 9. The cylinder barrel 10 of the leveling cylinder is connected to the boom 9 via a first pin 11. The piston rod 7 of the leveling cylinder is connected to the bucket support 13 via a second pin 12. The bucket support 13 is connected to the boom 9 via a third pin 14. The piston rod 7 of the leveling cylinder passes through a circular hole 15 and an oblong hole 16.
[0022] Specifically, the PVC sealing plate 3 and the rubber plate 6 are fixed together by the pressure plate bolt 5 and the threaded pressure plate 4. The upper part of the PVC sealing plate 3 is connected to the boom 9 by the upper bolt 1 and the clamp 2, and the lower part of the PVC sealing plate 3 is connected to the boom 9 by the lower bolt 8.
[0023] The leveling cylinder barrel 10 is connected to the boom 9 via a first pin 11. The leveling cylinder piston rod 7 is connected to the bucket support 13 via a second pin 12. The bucket support 13 is connected to the boom 9 via a third pin 14. The leveling cylinder piston rod 7 passes through the circular hole 15 of the rubber plate 6. When the leveling cylinder piston rod 7 extends or retracts, it will drive the bucket support 13 to rotate around the third pin 14. Consequently, the leveling cylinder piston rod 7 and the leveling cylinder barrel 10 will swing up and down together around the first pin 11.
[0024] Because the leveling cylinder piston rod 7 passes through the circular hole 15 of the rubber plate 6 and the oblong hole 16 of the PVC sealing plate 3, and because the rubber plate 6 is relatively soft and wrinkled, it can move up and down in the oblong hole 16 of the PVC sealing plate 3 along with the leveling cylinder piston rod 7 while ensuring the enclosure of the boom 9. Since the PVC sealing plate 3 is relatively soft, only the upper bolt 1 and clamp 2 of the upper part of the PVC sealing plate 3 need to be removed to allow the upper part of the PVC sealing plate 3 to be laid down and the internal components of the boom 9 to be repaired.
[0025] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.
Claims
1. A boom sealing plate mechanism for an aerial work platform, wherein the sealing plate mechanism is mounted on the boom (9), characterized in that: The sealing plate mechanism includes a PVC sealing plate (3), a threaded pressure plate (4), a pressure plate bolt (5), and a rubber plate (6). The two ends of the rubber plate (6) are installed on the PVC sealing plate (3) through the threaded pressure plate (4) and the pressure plate bolt (5). The PVC sealing plate (3) is provided with a waist-shaped hole (16), and the rubber plate (6) is provided with a circular hole (15).
2. The boom sealing plate mechanism of the aerial work platform according to claim 1, characterized in that: The upper part of the boom (9) is equipped with a clamp plate (2), the upper part of the PVC sealing plate (3) is installed on the clamp plate (2) by an upper bolt (1), and the lower part of the PVC sealing plate (3) is installed on the lower part of the boom (9) by a lower bolt (8).
3. The boom sealing plate mechanism of the aerial work platform according to claim 1, characterized in that: The boom (9) is equipped with a leveling cylinder. The cylinder barrel (10) of the leveling cylinder is connected to the boom (9) through a first pin (11). The piston rod (7) of the leveling cylinder is connected to the bucket support (13) through a second pin (12). The bucket support (13) is connected to the boom (9) through a third pin (14).
4. The boom sealing plate mechanism of the aerial work platform according to claim 3, characterized in that: The leveling cylinder piston rod (7) passes through the circular hole (15) and the waist-shaped hole (16).
5. The boom sealing plate mechanism of the aerial work platform according to claim 1, characterized in that: The rubber sheet (6) has a pleated structure.