Wear resistant, easily replaceable bushing

Abstract

The utility model belongs to the gate valve supporting conveying equipment technical field, specifically disclose a kind of wear-resistant easy-to-replace bushing, including bushing body, the upper portion of bushing body outer wall is connected with the ring, the upper end of the ring is connected with the mounting ring, the upper end of the mounting ring is connected with the funnel body, the flange of bushing body lower end is connected with the pipe body, the upper end of the ring is evenly connected with the clamping mechanism on both sides, the clamping mechanism includes clamping plate, the lower end of two clamping plate is connected with slider, the upper end of the ring is evenly provided with the sliding slot at the place corresponding to two sliders, the locking mechanism is evenly connected on the both sides of the mounting ring, the utility model is connected with locking mechanism by clamping mechanism, achieves the efficient pre-positioning of bushing and funnel body, close link and convenient disassembly and assembly, collocation sealing washer realizes sealing leakproof and buffering effect, improve the defect that traditional bushing disassembly and assembly are complicated, link is not firm, help material conveying system stable operation and reduce maintenance difficulty.

Description

Technical Field

[0001] This utility model belongs to the technical field of gate valve supporting conveying equipment, specifically relating to a wear-resistant and easily replaceable bushing. Background Technology

[0002] In the connection system between the gate valve buffer funnel and the chute, the bushing is the core functional component that enables the transition between the square funnel and the round chute shape. It is mainly installed at the square-to-round transition point between the two, and its core functions include two aspects: First, it receives the material falling from the buffer funnel and guides the material smoothly into the chute through the flow guiding structure on the inner wall, avoiding material accumulation at the transition point; Second, as a vulnerable part, it directly bears the impact and friction of the material, protecting the buffer funnel and chute body from wear and extending the service life of the overall equipment. The bushing needs to be precisely matched with the buffer funnel and the chute, ensuring both the sealing of the material flow and adapting to the narrow installation space on site. Therefore, its structural design directly affects the operational stability and maintenance efficiency of the entire conveying system.

[0003] Existing bushings are mostly made of ordinary steel and have not been reinforced for the high impact and high friction characteristics of the square-to-round transition section. This leads to rapid wear in this area when materials fall, and replacement is extremely inconvenient. Existing bushings and buffer funnels are mostly connected by bolts or welded, but the transition area is narrow and difficult for personnel to access. Bolts are easily jammed by material dust and rust, making disassembly difficult. Welding requires on-site cutting and re-welding, which is not only time-consuming to replace, but may also damage the funnel body due to the high temperature of welding. At the same time, the whole-body replacement method results in a large amount of steel waste, which does not meet the production requirements of energy conservation and consumption reduction. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wear-resistant and easily replaceable bushing.

[0005] To achieve the above objectives, this utility model provides a wear-resistant and easily replaceable bushing, comprising a bushing body, a support ring connected to the upper part of the outer wall of the bushing body, an installation ring connected to the upper end of the support ring, a funnel body connected to the upper end of the installation ring, a chute body connected to the flange at the lower end of the bushing body, a snap-fit ​​mechanism evenly connected to both sides of the upper end of the support ring, the snap-fit ​​mechanism comprising a snap plate, a slider connected to one side of the lower end of the two snap plates, a groove provided at the upper end of the support ring corresponding to the two sliders, a locking mechanism evenly connected to both sides of the installation ring, the locking mechanism comprising four sets, the four sets of locking mechanisms being located on both sides of the upper end of the support ring, the locking mechanism comprising a fixing plate, a U-shaped plate connected to the lower end of the support ring corresponding to the lower end of the fixing plate, and a screw connected to the middle of the lower end of the U-shaped plate.

[0006] In the above technical solution, further, both the upper end of the support ring and the lower end of the mounting ring are provided with placement grooves, and sealing gaskets are engaged inside the two placement grooves, with the two sealing gaskets in contact with each other.

[0007] In the above technical solution, the cross-sectional shape of the card plate is an inverted L-shape, and the lower ends of the two card plates respectively contact the upper ends of the mounting ring. The two sliders slide inside the two sliding grooves respectively, and the upper end of the mounting ring is connected to a card rod corresponding to one end of the two card plates.

[0008] In the above technical solution, the cross-sectional shape of the clamping rod is T-shaped, and a clamping groove is provided on one side of each of the two clamping plates corresponding to the two clamping rods. The clamping groove is U-shaped, and the two clamping rods are respectively clamped into the two clamping grooves.

[0009] In the above technical solution, a mounting block is further connected to the lower part of one side of the funnel body, and a mounting plate is connected to the upper end of the support ring corresponding to the side of the mounting block. The mounting plate is connected to the mounting block on one side by mounting bolts.

[0010] In the above technical solution, the upper end of the screw passes through the U-shaped plate, the support ring and the fixing plate in sequence. The upper end of the screw is connected to the insertion rod. The support ring and the fixing plate are provided with through holes at the corresponding insertion rod positions. The cross-sectional shape of the insertion rod is adapted to the cross-sectional shape of the through hole. The inner walls of the two through holes are uniformly embedded with ball bearings.

[0011] In the above technical solution, further, an opening is provided on the upper part of one side of the insertion rod, and limit blocks are evenly rotatably connected to both sides of the inner wall of the opening. The shape of one side of the limit block is adapted to the shape of one side of the insertion rod, and the limit block is rotatably connected to both sides of the inner wall of the opening through a spring-type rebound shaft.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The snap-fit ​​mechanism provides a reliable lateral pre-positioning function for the assembly of the bushing body and the funnel body. The sliding of the slider along the groove guides the plate to move smoothly, avoiding deviations caused by manual alignment. At the same time, the interlocking structure of the T-shaped locking rod and the U-shaped locking groove can quickly form a lateral lock after sliding into place, preventing the bushing from sliding back or shifting in the sliding direction, ensuring precise docking between the support ring and the mounting ring. This pre-positioning method does not rely on bolt alignment or tool calibration. It can be completed by manual pushing in narrow spaces, simplifying the positioning steps in the early stage of assembly. At the same time, the cooperation constraint of the groove and the slider reduces the lateral movement of the bushing caused by material impact, providing a stable foundation for subsequent locking and fixing, and avoiding subsequent installation problems caused by pre-positioning deviations.

[0013] Rotating the screw drives the insertion rod to rise and fall smoothly along the through hole. The ball bearings inside the through hole effectively reduce sliding friction, ensuring effortless operation. After the insertion rod passes through, the limiting block automatically unfolds to both sides under the action of the spring-loaded return shaft, forming a mechanical clamp with the upper surface of the fixed plate. Combined with the thread preload of the screw, it can tightly press the support ring and the mounting ring together, completely eliminating gaps. It can effectively resist the instantaneous vertical impact force when the material falls, preventing the bushing from being lifted or loosened. Moreover, the four sets of locking mechanisms are evenly distributed circumferentially, which can also disperse the impact force to the entire installation structure, preventing the deformation of components caused by excessive local stress. This further improves the long-term reliability of the bushing and funnel connection and adapts to the continuous impact conditions during material conveying. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the device proposed in this utility model; Figure 2 This is a schematic diagram of the connection structure between the card plate and the sealing gasket proposed in this utility model; Figure 3 This is a schematic diagram of the connection structure between the card plate and the support ring proposed in this utility model; Figure 4 This is a schematic diagram of the mounting block and mounting plate structure proposed in this utility model; Figure 5 This is a schematic diagram of the installation structure of the bushing body and the funnel body proposed in this utility model. Figure 6 This is a schematic diagram of the installation structure of the locking mechanism proposed in this utility model; Figure 7 The present utility model proposes Figure 6 A magnified structural diagram of A.

[0015] In the diagram: 1. Bushing body; 2. Support ring; 3. Mounting ring; 4. Funnel body; 5. Chute body; 6. Sealing gasket; 7. Clamping plate; 8. Slider; 9. Slide groove; 10. Clamping rod; 11. Clamping slot; 12. Mounting block; 13. Mounting plate; 14. Mounting bolt; 15. Fixing plate; 16. U-shaped plate; 17. Screw; 18. Insert rod; 19. Through hole; 20. Ball bearing; 21. Opening; 22. Limiting block. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-7 The image shows a wear-resistant and easily replaceable bushing.

[0018] The device includes a bushing body 1, with a wear-resistant layer welded to the inner wall of the bushing to improve its wear resistance. A support ring 2 is connected to the upper part of the outer wall of the bushing body 1. An installation ring 3 is connected to the upper end of the support ring 2. A funnel body 4 is connected to the upper end of the installation ring 3. A chute body 5 is connected to the flange at the lower end of the bushing body 1. A snap-fit ​​mechanism is evenly connected to both sides of the upper end of the support ring 2. A locking mechanism is evenly connected to both sides of the installation ring 3. There are four sets of locking mechanisms, which are located on both sides of the upper end of the support ring 2. Placement grooves are opened at the upper end of the support ring 2 and the lower end of the installation ring 3. Sealing gaskets 6 are snapped into the two placement grooves and are in contact with each other. An installation block 12 is connected to the lower part of one side of the funnel body 4. An installation plate 13 is connected to the upper end of the support ring 2 corresponding to the side of the installation block 12. One side of the installation plate 13 is connected to the installation block 12 by installation bolts 14. The bushing body 1 facilitates the shape transition between the square funnel and the circular chute and directly receives the material impact. The support ring 2 supports the bushing body 1 and docks with the mounting ring 3. The mounting ring 3 connects the funnel body 4 and the support ring 2. The chute body 5 is used to convey the material transitioned through the bushing. The snap-fit ​​mechanism achieves the initial lateral positioning of the support ring 2 and the mounting ring 3. The locking mechanism is used to fasten the support ring 2 and the mounting ring 3. The placement groove is used to accommodate the sealing gasket 6. The sealing gasket 6 is used to achieve a leak-proof seal between the support ring 2 and the mounting ring 3 and to provide slight cushioning. The mounting block 12 and the mounting plate 13, together with the mounting bolts 14, are used to further enhance the connection stability between the support ring 2 and the funnel body 4.

[0019] The locking mechanism includes locking plates 7, with sliders 8 connected to one side of the lower end of the two locking plates 7. The upper end of the support ring 2 is provided with a groove 9 corresponding to the two sliders 8. The cross-sectional shape of the locking plates 7 is an inverted L-shaped structure. The lower end of the two locking plates 7 contacts the upper sides of the mounting ring 3 respectively. The two sliders 8 slide inside the two grooves 9 respectively. The upper end of the mounting ring 3 is connected with a locking rod 10 corresponding to one end of the two locking plates 7. The cross-sectional shape of the locking rod 10 is a T-shaped structure. The two locking plates 7 are provided with a slot 11 corresponding to the two locking rods 10 respectively. The slot 11 is U-shaped. The two locking rods 10 are respectively locked into the two slots 11. The clamping plate 7 is used to hook the upper end of the mounting ring 3 through the inverted L-shaped structure. The slider 8 and the slide groove 9 cooperate to guide the clamping plate 7 to slide laterally and limit its offset. The T-shaped clamping rod 10 and the U-shaped clamping groove 11 cooperate to achieve precise engagement between the clamping plate 7 and the mounting ring 3, preventing the clamping plate 7 from slipping laterally, thereby completing the initial positioning of the support ring 2 and the mounting ring 3.

[0020] The locking mechanism includes a fixed plate 15. A U-shaped plate 16 is connected to the lower end of the fixed plate 15, corresponding to the lower end of the ring 2. A screw 17 is connected to the middle of the lower end of the U-shaped plate 16. The upper end of the screw 17 passes through the U-shaped plate 16, the ring 2, and the fixed plate 15 in sequence. An insert rod 18 is connected to the upper end of the screw 17. A through hole 19 is opened at the position of the insert rod 18 corresponding to the ring 2 and the fixed plate 15. The cross-sectional shape of the insert rod 18 is adapted to the cross-sectional shape of the through hole 19. Roller balls 20 are evenly embedded in the inner walls of the two through holes 19. An opening 21 is opened on the upper part of one side of the insert rod 18. Limiting blocks 22 are evenly rotatably connected to both sides of the inner wall of the opening 21. The shape of one side of the limiting block 22 is adapted to the shape of one side of the insert rod 18. The limiting block 22 is rotatably connected to both sides of the inner wall of the opening 21 through a spring-type rebound shaft. The fixing plate 15 provides a locking support point, the U-shaped plate 16 carries the screw 17 and restricts its radial sway, the screw 17 is used to drive the insertion rod 18 to rise and fall through the threaded transmission, the insertion rod 18 cooperates with the through hole 19 to realize the vertical positioning of the support ring 2 and the fixing plate 15, the ball 20 reduces the sliding friction between the insertion rod 18 and the through hole 19, the opening 21 is used to accommodate the limiting block 22, the limiting block 22 is used to unfold to both sides after the insertion rod 18 is raised under the action of the spring-loaded return shaft, and locks with the upper end of the fixing plate 15 to achieve locking, thereby tightly pressing the support ring 2 and the mounting ring 3 together.

[0021] Working principle: When using the device, first assemble the bushing body 1 and the funnel body 4; place the sealing gasket 6 into the placement grooves at the upper end of the support ring 2 and the lower end of the mounting ring 3 respectively, push the bushing body 1 so that the retaining plate 7 on the support ring 2 slides laterally along the sliding groove 9 of the support ring 2 through the slider 8 until the T-shaped retaining rod 10 on the mounting ring 3 is engaged in the U-shaped retaining groove 11 of the retaining plate 7, completing the initial positioning; at this time, the sealing gasket 6 in the placement groove of the support ring 2 and the mounting ring 3 are in close contact, which not only achieves the sealing and leakage prevention between the two parts, but also provides slight buffering through the elastic deformation of the sealing gasket 6 to alleviate the vibration caused by the impact of the material.

[0022] Next, the locking mechanism is activated to complete the fixation; the screw 17 at the lower end of the U-shaped plate 16 is rotated, causing the insertion rod 18 to move upward along the through hole 19 between the ring 2 and the fixing plate 15. The ball bearing 20 in the through hole 19 reduces the friction when the insertion rod 18 slides; when the upper end of the insertion rod 18 passes through the through hole 19, the limiting block 22 in the opening 21 unfolds to both sides under the action of the spring-loaded return shaft, forming a clamp with the upper end face of the fixing plate 15. At the same time, the screw 17 uses the thread preload force to tightly fit the ring 2 and the mounting ring 3, and with the help of the four sets of locking mechanisms, even force is applied to fix the ring. Finally, the ring 2 is connected to the mounting block 12 of the funnel body 4 by the mounting bolts 14 on the mounting plate 13, further enhancing the overall stability and completing the assembly.

[0023] During disassembly and replacement, rotate the screw 17 in the opposite direction to move the insert 18 downward. The limiting block 22 is squeezed back into the opening 21 by the inner wall of the through hole 19, thus releasing the lock. Unscrew the mounting bolt 14 and push the card plate 7 to make the slider 8 slide in the opposite direction along the slide groove 9. The T-shaped card rod 10 disengages from the U-shaped card groove 11, and the bushing body 1 and the supporting ring 2 can be removed as a whole, achieving quick replacement. The whole process does not require complicated tools and is suitable for operation in narrow spaces.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wear-resistant and easily replaceable bushing, comprising a bushing body (1), characterized in that, The upper part of the outer wall of the bushing body (1) is connected to a support ring (2), the upper end of the support ring (2) is connected to an installation ring (3), the upper end of the installation ring (3) is connected to a funnel body (4), the flange at the lower end of the bushing body (1) is connected to a chute body (5), the upper end of the support ring (2) is evenly connected to two snap-fit ​​mechanisms, the snap-fit ​​mechanism includes a snap-fit ​​plate (7), the lower end of the two snap-fit ​​plates (7) is connected to a slider (8), the upper end of the support ring (2) is provided with a groove (9) corresponding to the two sliders (8), the two sides of the installation ring (3) are evenly connected to a locking mechanism, the locking mechanism is four sets, the four sets of locking mechanisms are respectively located on the upper end of the support ring (2), the locking mechanism includes a fixing plate (15), the lower end of the support ring (2) is connected to a U-shaped plate (16) corresponding to the lower end of the fixing plate (15), and the lower middle part of the U-shaped plate (16) is connected to a screw (17).

2. The wear-resistant and easily replaceable bushing according to claim 1, characterized in that, The upper end of the support ring (2) and the lower end of the mounting ring (3) are both provided with placement grooves, and sealing gaskets (6) are engaged inside the two placement grooves, and the two sealing gaskets (6) are in contact with each other.

3. The wear-resistant and easily replaceable bushing according to claim 1, characterized in that, The cross-sectional shape of the card plate (7) is an inverted L-shaped structure. The lower ends of the two card plates (7) are respectively in contact with the upper ends of the mounting ring (3). The two sliders (8) slide inside the two sliding grooves (9). The upper end of the mounting ring (3) is connected to a card rod (10) corresponding to one end of the two card plates (7).

4. The wear-resistant and easily replaceable bushing according to claim 3, characterized in that, The cross-sectional shape of the clamp rod (10) is T-shaped. Each of the two clamp plates (7) has a groove (11) on one side corresponding to the two clamp rods (10). The groove (11) is U-shaped. The two clamp rods (10) are respectively clamped into the two grooves (11).

5. The wear-resistant and easily replaceable bushing according to claim 1, characterized in that, The funnel body (4) is connected to a mounting block (12) on one side of the lower part. The upper end of the support ring (2) is connected to a mounting plate (13) on the side corresponding to the mounting block (12). The mounting plate (13) is connected to the mounting block (12) on one side by mounting bolts (14).

6. The wear-resistant and easily replaceable bushing according to claim 1, characterized in that, The upper end of the screw (17) passes through the U-shaped plate (16), the ring (2) and the fixing plate (15) in sequence. The upper end of the screw (17) is connected to the insertion rod (18). The ring (2) and the fixing plate (15) are provided with through holes (19) corresponding to the insertion rod (18). The cross-sectional shape of the insertion rod (18) is adapted to the cross-sectional shape of the through hole (19). The inner walls of the two through holes (19) are uniformly embedded with balls (20).

7. The wear-resistant and easily replaceable bushing according to claim 6, characterized in that, An opening (21) is provided on the upper part of one side of the insertion rod (18). Limiting blocks (22) are evenly rotatably connected to both sides of the inner wall of the opening (21). The shape of one side of the limiting block (22) is adapted to the shape of one side of the insertion rod (18). The limiting block (22) is rotatably connected to both sides of the inner wall of the opening (21) through a spring-type rebound shaft.

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