Fire hydrant valve stem machining feeding safety device

Abstract

The utility model relates to the technical field of hydrant valve rod processing, especially a hydrant valve rod processing feeding safety device, solves the problem that the staff is close to the processing place in the feeding process in the prior art and is easily hurt by the debris generated during processing, a hydrant valve rod processing feeding safety device, including the processing platform, the top of processing platform is opened with the feeding groove, the inside slide coupling of feeding groove has the feeding block, the inside of feeding block is equipped with the extrusion mechanism, the top fixed connection of feeding block has the protection board, the surface of protection board is equipped with the unfolding mechanism, the both sides fixed connection of feeding block has the push rod, the surface fixed connection of push rod has the buffer cover, the top fixed connection of processing platform has the data ruler, the top rotation connection of data ruler has the data mark, the utility model can protect the staff from being hurt by the debris during feeding, and accurate feeding is carried out.

Description

Technical Field

[0001] This utility model relates to the field of fire hydrant valve stem processing technology, and in particular to a safety device for feeding materials during fire hydrant valve stem processing. Background Technology

[0002] As the core control component of a fire hydrant, the fire hydrant valve stem's structural design, material selection, processing precision, and performance requirements directly determine the fire hydrant's opening and closing reliability, sealing performance, and service life. The valve stem is raised and lowered by rotating a handwheel to open / close the fire hydrant outlet. The fire hydrant valve stem must meet three core requirements: corrosion resistance, strength, and wear resistance. Material selection must be combined with the operating environment and pressure rating. Acid pickling and passivation treatment is used to remove surface oxide scale and improve corrosion resistance. As a critical safety component, the processing and feeding of the fire hydrant valve stem directly affects product precision and production safety.

[0003] Chinese Patent Publication No. CN210305768U discloses a processing device for ball valve stems, including a lathe frame. A side plate is fixedly connected to the top end of the lathe frame, and a lifting block is slidably connected to one side of the side plate. An inclined groove is fixedly connected to the side of the lifting block away from the side plate via a transverse groove. A conveying pipe is connected to the end of the inclined groove away from the transverse groove, and an inclined block is provided at the bottom end of the conveying pipe near the side plate. This utility model relates to the field of valve stem processing technology. This ball valve stem processing device only requires placing the valve stem to be processed into the transverse groove, and the valve stem is automatically transferred to the center position of the chuck. This reduces the valve stem transfer and calibration work, and solves the problem of existing valve stem processing devices requiring adjustment of the valve stem orientation during the loading process so that the clamp can hold the stem portion, and then the valve stem must be fed to the clamp for clamping, which is inconvenient for manual operation and results in low production efficiency.

[0004] For existing fire hydrant valve stem processing and feeding safety devices, in actual use, when processing valve stem raw materials, workers are close to the processing area during the feeding process and are easily injured by debris generated during processing. Using a protective cover makes it inconvenient to observe the accuracy of feeding, which affects the accuracy of feeding. Utility Model Content

[0005] The purpose of this utility model is to provide a safety device for feeding fire hydrant valve stems, which solves the problem in the prior art where workers are too close to the processing area during the feeding process and are easily injured by debris generated during processing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A safety device for feeding fire hydrant valve stems includes a processing table, a feeding trough on the top of the processing table, a feeding block slidably connected inside the feeding trough, a pressing mechanism inside the feeding block, a protective plate fixedly connected to the top of the feeding block, an unfolding mechanism on the surface of the protective plate, push rods fixedly connected to both sides of the feeding block, buffer sleeves fixedly connected to the surface of the push rods, a data ruler fixedly connected to the top of the processing table, and a data mark rotatably connected to the top of the data ruler.

[0007] Preferably, the extrusion mechanism includes a feeding trough opened inside the feeding block, the bottom of the feeding trough being arc-shaped, an extrusion screw being threadedly connected to the top of the feeding block, and an extrusion block being rotatably connected to the bottom of the extrusion screw, the bottom of the extrusion block being arc-shaped.

[0008] Preferably, an anti-detachment rod is provided on the side of the feeding block, one end of which is inserted into the extrusion block, and the other end of which is elastically connected to the side of the feeding block by a compression spring.

[0009] Preferably, the unfolding mechanism includes three unfolding plates rotatably connected to the surface of the protective plate, with U-shaped anti-rotation rods fixedly connected to the surface of the unfolding plates, and a mountain-shaped limiting rod slidably connected between the three unfolding plates, with the three ends of the limiting rods respectively passing through the interior of the adjacent anti-rotation rods.

[0010] Preferably, the top of the processing table is rotatably connected to a reinforcing rod in the shape of an arc.

[0011] Preferably, one end of the reinforcing rod is threaded with a bolt, and the bolt is threaded to the top of the processing table.

[0012] This utility model has the following beneficial effects: When processing and feeding raw materials for fire hydrant valve stems, protective plates can separate workers from the processing area, protecting workers from injury from debris during feeding. Furthermore, during feeding, distance markings can be made using rulers and scales to easily control the feeding distance, ensuring accurate feeding while guaranteeing worker safety. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A side view; Figure 3 for Figure 1 A schematic diagram of the unfolding mechanism; Figure 4 for Figure 1 A schematic diagram of the extrusion mechanism; Figure 5 for Figure 1 Side view of the central reinforcement bar.

[0015] In the diagram: 1. Processing table; 2. Feeding trough; 3. Feeding block; 4. Extrusion mechanism; 5. Protective plate; 6. Unfolding mechanism; 7. Push rod; 8. Buffer sleeve; 9. Data ruler; 10. Data mark; 11. Reinforcing rod; 12. Bolt; 401. Feeding trough; 402. Extrusion screw; 403. Extrusion block; 404. Anti-detachment rod; 405. Compression spring; 601. Unfolding plate; 602. Anti-rotation rod; 603. Limiting rod. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Reference Figure 1-5A safety device for feeding fire hydrant valve stems includes a processing table 1. A feeding trough 2 is located on the top of the processing table 1. A feeding block 3 is slidably connected inside the feeding trough 2, ensuring the feeding block 3's movement trajectory remains unbiased and guaranteeing stability during feeding. A pressing mechanism 4 is located inside the feeding block 3, easily fixing the raw material inside and ensuring stable and smooth feeding. A protective plate 5 is fixedly connected to the top of the feeding block 3, separating the worker from the processing equipment on the processing table 1, thus preventing danger to the worker during processing. An unfolding mechanism 6 is provided on the surface of the protective plate 5, increasing the protective area and allowing for flexible adjustment for ease of use. Push rods 7 are fixedly connected to both sides of the feeding block 3, with buffer sleeves 8 fixedly connected to their surfaces. When feeding is required, the push rods 7 apply force to the feeding block 3 for feeding, while the buffer sleeves 8 provide cushioning protection for the worker. A data ruler 9 is fixedly connected to the top of the processing table 1, and the top of the data ruler 9 rotates... The movable connection with data marker 10, data ruler 9, and rotating data marker 10 allows for convenient marking of raw materials to control the feeding length and the pushing distance during feeding, ensuring feeding accuracy. When processing fire hydrant valve stems, the valve stem material is inserted into the feeding block 3, and its position is adjusted. After adjustment, the extrusion mechanism 4 fixes the material inside the feeding block 3. Then, the data marker 10 is rotated, and the data ruler 9 is used to mark the material. During feeding, the feeding block 3 can be moved inside the feeding trough 2 by holding the push rod 7, allowing the material to enter the processing equipment. During this process, the distance is controlled by the markings on the data ruler 9 and data marker 10. The protective plate 5 can isolate the processing area from the workers. When using the push rod 7, the buffer sleeve 8 provides cushioning protection for the workers. When using the protective plate 5 to separate the workers from the processing area, the unfolding mechanism 6 can increase the protective area, providing better safety protection for the workers and ensuring their safety during feeding.

[0018] Furthermore, the extrusion mechanism 4 includes a feeding groove 401 opened inside the feeding block 3. The bottom of the feeding groove 401 is arc-shaped. The top of the feeding block 3 is threadedly connected to an extrusion screw 402. The bottom of the extrusion screw 402 is rotatably connected to an extrusion block 403. The bottom of the extrusion block 403 is arc-shaped. When it is necessary to fix the raw material inside the feeding block 3, the raw material can be inserted into the feeding groove 401 first, and then the extrusion screw 402 can be rotated to make the extrusion block 403 move downward. Thus, the extrusion block 403 cooperates with the feeding groove 401 to fix the raw material inside the feeding block 3, thereby ensuring the stability of the raw material during feeding.

[0019] Furthermore, an anti-detachment rod 404 is provided on the side of the feeding block 3. One end of the anti-detachment rod 404 is inserted into the extrusion block 403. The other end of the anti-detachment rod 404 is elastically connected to the side of the feeding block 3 through a compression spring 405. When the extrusion screw 402 rotates, the anti-detachment rod 404 is first pulled away from the extrusion block 403. After the extrusion screw 402 finishes rotating, the anti-detachment rod 404 is released. The anti-detachment rod 404 moves into the interior of the extrusion block 403 by the elastic force of the compression spring 405, so that the extrusion block 403 will not rise when extruding the raw material, thus ensuring the stability of fixing the raw material.

[0020] Furthermore, the unfolding mechanism 6 includes three unfolding plates 601 rotatably connected to the surface of the protective plate 5. A U-shaped anti-rotation rod 602 is fixedly connected to the surface of each unfolding plate 601. A mountain-shaped limiting rod 603 is slidably connected between the three unfolding plates 601. The three ends of the limiting rod 603 pass through the interior of adjacent anti-rotation rods 602. When using the protective plate 5, if it is necessary to expand the protective area, the three unfolding plates 601 are rotated to increase the protective area on the top and sides of the protective plate 5. Then, the limiting rod 603 is moved downwards from above, so that the three ends of the limiting rod 603 are inserted into adjacent anti-rotation rods 602, thereby ensuring the stability of the unfolding plate 601 after rotation. This allows the unfolding plate 601 to provide stable protection. When the unfolding plate 601 is not needed, it can be rotated and retracted.

[0021] Furthermore, the top of the processing table 1 is rotatably connected to a reinforcing rod 11 in the shape of an arc. When the raw material needs to be processed, the reinforcing rod 11 can be rotated to fix the raw material, preventing the raw material from becoming unstable during the processing and resulting in poor processing effect.

[0022] Furthermore, one end of the reinforcing rod 11 is threaded with a bolt 12, which is threaded to the top of the processing table 1. When the reinforcing rod 11 is rotated to fix the raw material, the bolt 12 can be rotated to fix one end of the reinforcing rod 11 to the processing table 1, thereby ensuring the stability of the raw material during processing.

[0023] In summary: When processing the valve stem of a fire hydrant, first insert the raw material into the feeding trough 401 inside the feeding block 3, then push the raw material so that a portion of it enters the processing equipment. After adjusting the position, first pull the anti-detachment rod 404, then rotate the extrusion screw 402, so that the extrusion block 403 can descend to cooperate with the feeding trough 401 to extrude and fix the raw material. Then release the anti-detachment rod 404, which can be inserted into the extrusion block 403 by the elastic force of the compression spring 405, fixing the extrusion block 403 and ensuring the stability of the raw material. Then rotate the three unfolding plates 601, and then insert the limiting rod 603 into the anti-rotation rod 602 to fix the three unfolding plates 601. The protective plate 5 and the three unfolding plates 601 protect the workers and ensure their safety. Then rotate the data label 10 close to the raw material, and use the data... The raw material is marked with ruler 9, then the reinforcing rod 11 is rotated to restrict the raw material, and then the bolt 12 is rotated to fix the raw material on the processing table 1. After that, the processing equipment is started to process the raw material. After processing, the bolt 12 is loosened, and then the push rod 7 wrapped by the buffer sleeve 8 is held to push the feeding block 3 in the feeding groove 2, so that the raw material continues to move for the next processing. The pushing distance is controlled by the marking on the material. When the raw material is not long enough, the anti-detachment rod 404 can be pulled to rotate the extrusion screw 402 and readjust the position of the raw material for convenient feeding. With the above structure, the protective plate 5 can ensure safe feeding during feeding. Since the processing area cannot be observed by the protective plate 5, the distance can be controlled by the data ruler 9 and data mark 10, so as to ensure the accuracy of feeding under safe conditions, and thus facilitate safe and accurate feeding of long rod raw materials.

[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 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safety device for feeding materials during the processing of fire hydrant valve stems, comprising a processing table (1), characterized in that, The processing table (1) has a feeding trough (2) on its top. A feeding block (3) is slidably connected inside the feeding trough (2). A pressing mechanism (4) is provided inside the feeding block (3). A protective plate (5) is fixedly connected to the top of the feeding block (3). An unfolding mechanism (6) is provided on the surface of the protective plate (5). Push rods (7) are fixedly connected to both sides of the feeding block (3). A buffer sleeve (8) is fixedly connected to the surface of the push rod (7). A data ruler (9) is fixedly connected to the top of the processing table (1). A data mark (10) is rotatably connected to the top of the data ruler (9).

2. The fire hydrant valve stem processing feeding safety device according to claim 1, characterized in that, The extrusion mechanism (4) includes a feeding trough (401) opened inside the feeding block (3). The bottom of the feeding trough (401) is arc-shaped. The top of the feeding block (3) is threadedly connected to an extrusion screw (402). The bottom of the extrusion screw (402) is rotatably connected to an extrusion block (403). The bottom of the extrusion block (403) is arc-shaped.

3. The fire hydrant valve stem processing feeding safety device according to claim 2, characterized in that, An anti-detachment rod (404) is provided on the side of the feeding block (3). One end of the anti-detachment rod (404) is inserted inside the extrusion block (403). One end of the anti-detachment rod (404) is elastically connected to the side of the feeding block (3) through a compression spring (405).

4. The fire hydrant valve stem processing feeding safety device according to claim 1, characterized in that, The unfolding mechanism (6) includes three unfolding plates (601) rotatably connected to the surface of the protective plate (5). A U-shaped anti-rotation rod (602) is fixedly connected to the surface of the unfolding plate (601). A mountain-shaped limiting rod (603) is slidably connected between the three unfolding plates (601). The three ends of the limiting rod (603) are respectively inserted into the interior of the adjacent anti-rotation rod (602).

5. The fire hydrant valve stem processing feeding safety device according to claim 1, characterized in that, The top of the processing table (1) is rotatably connected to a reinforcing rod (11) in the shape of an arc.

6. The fire hydrant valve stem processing feeding safety device according to claim 5, characterized in that, One end of the reinforcing rod (11) is threaded with a bolt (12), which is threaded to the top of the processing table (1).

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