Bed frame sweeping rod structure

Abstract

The utility model discloses a kind of sweep bed frame contact lever structures, it is related to sweep bed frame contact lever technical field, including girder, the bottom of girder is fixedly connected with pedestal, the bottom of pedestal is provided with buffer assembly, the bottom of pedestal is provided with protection assembly;The buffer assembly includes guide rod, and guide rod is fixed in the inside of pedestal, the outer wall of guide rod is slidably connected with sliding sleeve, the one side of sliding sleeve is fixedly connected with spring, the bottom of sliding sleeve is hingedly connected with movable rod, the bottom of movable rod is hingedly connected with swing arm.This sweep bed frame contact lever structure is through setting guide rod, sliding sleeve, spring, movable rod and swing arm's linkage structure, when swing arm is stressed swing, drive movable rod to make sliding sleeve slide along guide rod and extrude spring, rely on the elastic deformation of spring, effectively buffer swing arm swing generated impact force, reduce sweep bed frame violent vibration, realize that operating stability is significantly improved, create more comfortable operating environment for operator, enhance use experience.

Description

Technical Field

[0001] This utility model relates to the field of bed sweeper contact rod technology, specifically a bed sweeper contact rod structure. Background Technology

[0002] The sweeping bed frame is a core piece of equipment for inspecting the flatness of the riverbed in waterway and reservoir engineering projects. Its contact rod, as the component that directly contacts the bottom, undertakes the critical task of detecting obstacles and locating defects. The contact rod is usually made of high-strength materials, such as rigid steel pipe or channel steel, to adapt to complex underwater environments. In rigid sweeping bed operations, the contact rod is towed by an engineering vessel and moves along the riverbed surface at a height of 5-20 cm. When it encounters an obstacle higher than the design bottom elevation, the contact rod will cause significant displacement due to the collision, triggering the alarm system or marking the obstacle's position by the swing amplitude. For example, in the Chishui River improvement project in Guizhou, the contact rod, in conjunction with the steel sweeping bed frame, successfully located 27 construction defects. To improve detection accuracy, some contact rods integrate wear-resistant nylon sliders or detachable metal probes to reduce wear errors. In addition, modern contact rod designs also incorporate dynamic filtering technology, which achieves automatic obstacle identification by analyzing bottom contact event data in real time, significantly improving detection efficiency and reliability.

[0003] Existing sweeping frame contact rod structures are mostly a row of long rods rigidly connected to the main beam or an integral scraper. These existing structures are prone to damage. When the sweeping frame moves at high speed or encounters hard or huge obstacles, the rigidly connected contact rods are prone to bending, breaking, or even causing the entire sweeping frame structure to be damaged. This results in high maintenance costs and delays in the construction period. Therefore, we need a new sweeping frame contact rod structure. Utility Model Content

[0004] The purpose of this utility model is to provide a brush bed frame contact rod structure to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brush bed frame contact rod structure, including a main beam, a base fixedly connected to the bottom of the main beam, a buffer assembly and a protective assembly provided at the bottom of the base; the buffer assembly includes a guide rod, which is fixed inside the base, a sliding sleeve is slidably connected to the outer wall of the guide rod, a spring is fixedly connected to one side of the sliding sleeve, a movable rod is hinged to the bottom of the sliding sleeve, a swing arm is hinged to the bottom of the movable rod, an installation hole is provided inside the swing arm, a rotating shaft is fixedly connected inside the base, and a limit block is fixedly connected to the bottom of the base.

[0006] Preferably, the base forms a sliding structure with a guide rod and a sliding sleeve, and the inner diameter of the sliding sleeve matches the outer diameter of the guide rod, and the inner wall of the sliding sleeve is fitted to the outer wall of the guide rod.

[0007] Preferably, the base is formed by a spring and a sliding sleeve to form an elastic structure, with one end of the spring fixed to the inner wall of the base and the other end of the spring fixed to one side of the sliding sleeve.

[0008] Preferably, the sliding sleeve forms a movable structure with the swing arm via a movable rod, and the two ends of the movable rod are respectively hinged to the sliding sleeve and the swing arm.

[0009] Preferably, the protection component includes a contact rod body, and a first flange is fixedly connected to the bottom of the contact rod body. A second flange is provided at the bottom of the first flange. A bolt is provided inside the second flange, and a nut is provided on the outer wall of the bolt. A shear pin is fixedly connected to the bottom of the second flange, and a roller is fixedly connected to the bottom of the shear pin. A traction rope is provided between the swing arm and the roller.

[0010] Preferably, the second flange is detachable from the first flange by bolts, and one end of the bolt passes through the second flange and is connected to the first flange and nut.

[0011] Preferably, the swing arm forms an overload protection mechanism with the rollers via a shear pin, and the shear pin breaks when the impact force on the shear pin exceeds the safety threshold.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In the scheme of this application: 1. To address the problems of severe vibration, poor operational stability, and low user comfort caused by the lack of an effective buffering mechanism during bed sweeping operations in existing technologies, this application proposes a linkage structure consisting of a guide rod, a sliding sleeve, a spring, a movable rod, and a swing arm. When the swing arm swings under force, it drives the movable rod to slide the sliding sleeve along the guide rod and compress the spring. Relying on the elastic deformation of the spring, the impact force generated by the swing arm swing is effectively buffered, reducing severe vibration of the bed sweeping frame and significantly improving operational stability. This creates a more comfortable operating environment for operators and enhances the user experience. 2. To address the problems in existing marine contact rod devices that lack effective overload protection when in contact with reefs, leading to component damage and loss, and the inconvenience of contact rod replacement affecting operational efficiency, this application proposes a combined structure consisting of a contact rod body with rollers, a shear pin, and a traction rope, along with detachable bolt and nut-connected first and second flanges. When the contact rod body is subjected to excessive force, the shear pin breaks, and the traction rope pulls the broken portion to prevent loss. The contact rod body can be quickly replaced by removing the nut, thus achieving overload protection and convenient replacement of the contact rod device, ensuring operational safety, and improving operational efficiency and convenience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the structure of the buffer component and the protection component of this utility model; Figure 3 This is a schematic diagram of the base and spring structure of this utility model; Figure 4 This is a schematic diagram of the swing arm and movable rod structure of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Main beam; 2. Base; 3. Buffer assembly; 301. Guide rod; 302. Sliding sleeve; 303. Spring; 304. Movable rod; 305. Swing arm; 306. Mounting hole; 307. Rotating shaft; 308. Limiting block; 4. Protective assembly; 401. Contact rod body; 402. First flange; 403. Second flange; 404. Bolt; 405. Nut; 406. Shear pin; 407. Roller; 408. Traction rope. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model embodiment provides a sweeping bed frame contact rod structure, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the system includes a main beam 1, a base 2 fixedly connected to the bottom of the main beam 1, a buffer assembly 3 and a protective assembly 4 at the bottom of the base 2; the buffer assembly 3 includes a guide rod 301, which is fixed inside the base 2; a sliding sleeve 302 is slidably connected to the outer wall of the guide rod 301; a spring 303 is fixedly connected to one side of the sliding sleeve 302; a movable rod 304 is hinged to the bottom of the sliding sleeve 302; a swing arm 305 is hinged to the bottom of the movable rod 304; a mounting hole 306 is provided inside the swing arm 305; and a rotating shaft 30 is fixedly connected inside the base 2. 7. A limit block 308 is fixedly connected to the bottom of the base 2. When the swing arm 305 is under force, the swing arm 305 can drive the movable rod 304 to move, which in turn drives the sliding sleeve 302 to move. The sliding sleeve 302 can slide along the outer wall of the guide rod 301, which in turn allows the sliding sleeve 302 to compress the spring 303. As the swing arm 305 swings on the rotating shaft 307 through the mounting hole 306, it can effectively play a buffering role, reducing the violent vibration of the entire sweeping frame and improving the stability of operation and the comfort of operation.

[0017] Further, such as Figure 2 , Figure 3 and Figure 4 As shown, the base 2 forms a sliding structure with the guide rod 301 and the sliding sleeve 302. The inner diameter of the sliding sleeve 302 matches the outer diameter of the guide rod 301, and the inner wall of the sliding sleeve 302 fits against the outer wall of the guide rod 301, which strengthens the connection between the guide rod 301 and the sliding sleeve 302, allowing the sliding sleeve 302 to slide along the outer wall of the guide rod 301.

[0018] Further, such as Figure 2 , Figure 3 and Figure 4 As shown, the base 2 forms an elastic structure with the spring 303 and the sliding sleeve 302. One end of the spring 303 is fixed to the inner wall of the base 2, and the other end of the spring 303 is fixed to one side of the sliding sleeve 302. This strengthens the connection between the spring 303 and the base 2, allowing the base 2 to support the sliding sleeve 302 with the help of the spring 303. This can also act as a buffer when the sliding sleeve 302 moves under force.

[0019] Further, such as Figure 2 , Figure 3 and Figure 4 As shown, the sliding sleeve 302 forms a movable structure with the swing arm 305 through the movable rod 304, and the two ends of the movable rod 304 are respectively hinged to the sliding sleeve 302 and the swing arm 305, which strengthens the connection effect between the sliding sleeve 302 and the movable rod 304. When the swing arm 305 is subjected to force, the sliding sleeve 302 can be moved by relying on the movable rod 304.

[0020] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the protection component 4 includes a contact rod body 401, and a first flange 402 is fixedly connected to the bottom of the contact rod body 401. A second flange 403 is provided at the bottom of the first flange 402. A bolt 404 is provided inside the second flange 403, and a nut 405 is provided on the outer wall of the bolt 404. A shear pin 406 is fixedly connected to the bottom of the second flange 403, and a roller 407 is fixedly connected to the bottom of the shear pin 406. A traction rope 408 is provided between the swing arm 305 and the roller 407. By installing a base 2 at the bottom of the main beam 1, the main beam 1 is installed on the ship. At this time, on the ship... When moved to the appropriate position, the roller 407 at the bottom of the contact rod body 401 will contact the reef, causing the contact rod body 401 to contact the reef and drive the swing arm 305 to move. During this process, if the contact rod body 401 is subjected to excessive force, the shear pin 406 will break under force, and under the traction of the traction rope 408, the broken part will be pulled away, thus preventing loss. At the same time, by removing the nut 405 and disengaging the bolt 404 from the positioning of the first flange 402 and the second flange 403, it is convenient for the operator to quickly replace the entire contact rod body 401.

[0021] Further, such as Figure 4 and Figure 5 As shown, the second flange 403 is connected to the first flange 402 by bolts 404 to form a detachable structure. One end of the bolt 404 passes through the second flange 403 and the first flange 402 and is connected to the nut 405. The bolt 404 can be used to install and fasten the second flange 403 and the first flange 402, which facilitates the disassembly and replacement of the roller 407 at the bottom of the contact rod body 401.

[0022] Further, such as Figure 4 and Figure 5 As shown, the swing arm 305 forms an overload protection mechanism with the roller 407 via the shear pin 406. When the impact force on the shear pin 406 exceeds the safety threshold, the shear pin 406 will shear off. With a preset strength shear pin 406, when the impact force on the contact rod exceeds the safety threshold, the shear pin 406 will shear off, causing the roller 407 at the bottom of the contact rod body 401 to separate and disconnect, thus protecting the swing arm 305.

[0023] Working principle: During use, the main beam 1 is mounted on the ship by installing the base 2 at the bottom of the main beam 1. When the ship moves to a suitable position, the roller 407 at the bottom of the contact rod body 401 will contact the reef, causing the contact rod body 401 to contact the reef and drive the swing arm 305 to move. During this process, if the contact rod body 401 is subjected to excessive force, the shear pin 406 will break under force, and under the traction of the traction rope 408, the broken part will be pulled away, thus preventing loss. At the same time, the nut 405 can be removed, and the bolt 404 will be disengaged from the first flange 402 and the second flange 404. The positioning of flange 403 facilitates quick replacement of the entire contact rod body 401 by the operator. At the same time, when the swing arm 305 is under force, the swing arm 305 can drive the movable rod 304 to move, which in turn drives the sliding sleeve 302 to move. The sliding sleeve 302 can slide along the outer wall of the guide rod 301, thereby compressing the spring 303. As the swing arm 305 swings on the rotating shaft 307 through the mounting hole 306, it can effectively play a buffering role, reducing the violent vibration of the entire sweeping frame and improving the stability of operation and the comfort of operation.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sweeping bed frame contact rod structure, comprising a main beam (1), characterized in that: The bottom of the main beam (1) is fixedly connected to a base (2), the bottom of the base (2) is provided with a buffer assembly (3), and the bottom of the base (2) is provided with a protective assembly (4); the buffer assembly (3) includes a guide rod (301), and the guide rod (301) is fixed inside the base (2). The outer wall of the guide rod (301) is slidably connected to a sleeve (302). A spring (303) is fixedly connected to one side of the sleeve (302). A movable rod (304) is hinged to the bottom of the sleeve (302). A swing arm (305) is hinged to the bottom of the movable rod (304). An installation hole (306) is opened inside the swing arm (305). A rotating shaft (307) is fixedly connected inside the base (2). A limit block (308) is fixedly connected to the bottom of the base (2).

2. The bed frame contact rod structure according to claim 1, characterized in that: The base (2) forms a sliding structure with the guide rod (301) and the sliding sleeve (302), and the inner diameter of the sliding sleeve (302) matches the outer diameter of the guide rod (301), and the inner wall of the sliding sleeve (302) is fitted to the outer wall of the guide rod (301).

3. The bed frame contact rod structure according to claim 1, characterized in that: The base (2) forms an elastic structure with a spring (303) and a sliding sleeve (302), and one end of the spring (303) is fixed to the inner wall of the base (2), and the other end of the spring (303) is fixed to one side of the sliding sleeve (302).

4. The bed frame contact rod structure according to claim 1, characterized in that: The sliding sleeve (302) forms a movable structure with the swing arm (305) via the movable rod (304), and the two ends of the movable rod (304) are respectively hinged to the sliding sleeve (302) and the swing arm (305).

5. The bed frame contact rod structure according to claim 1, characterized in that: The protective component (4) includes a contact rod body (401), and a first flange (402) is fixedly connected to the bottom of the contact rod body (401). A second flange (403) is provided at the bottom of the first flange (402). A bolt (404) is provided inside the second flange (403). A nut (405) is provided on the outer wall of the bolt (404). A shear pin (406) is fixedly connected to the bottom of the second flange (403). A roller (407) is fixedly connected to the bottom of the shear pin (406). A traction rope (408) is provided between the swing arm (305) and the roller (407).

6. The bed frame contact rod structure according to claim 5, characterized in that: The second flange (403) is connected to the first flange (402) by bolts (404) to form a detachable structure, and one end of the bolt (404) passes through the second flange (403) and the first flange (402) and nut (405) to connect them.

7. The bed frame contact rod structure according to claim 5, characterized in that: The swing arm (305) forms an overload protection mechanism with the roller (407) through the shear pin (406), and when the impact force on the shear pin (406) exceeds the safety threshold, the shear pin (406) will break.

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