Surface treatment equipment for fire valve machining

Abstract

The invention discloses fire valve machining surface treatment equipment, and relates to the technical field of fire fighting equipment, the fire valve machining surface treatment equipment comprises a base, a mounting plate, an adjusting mechanism, a grinding mechanism, a limiting mechanism and a conveying belt, the conveying belt is fixedly connected to the base, feeding tables are fixedly connected to the two sides of the conveying belt, and the adjusting mechanism in threaded transmission is arranged at the position, below the conveying belt, of the base; a limiting mechanism is arranged on the adjusting mechanism, a mounting plate is fixedly connected to one side of the base, and a grinding mechanism is arranged on the side, close to the mounting plate, of the conveying belt. According to the device, a first telescopic air cylinder pushes a second telescopic rod to drive a swing part to swing, a driving rod rotates through a driving wheel, a worm and a worm gear, a mounting frame vertically moves along the first telescopic rod, and the height of a polished blade is adjusted; the second telescopic air cylinder drives a transmission rod to move; a fixed rack is meshed with the transmission wheel to enable a rotating frame to rotate; and the friction force is reduced through the auxiliary wheels, and the machining position precision of the fire valve is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of fire protection equipment technology, and in particular to a surface treatment device for processing fire valves. Background Technology

[0002] In modern fire safety systems, fire valves are key components, and their quality and performance directly affect the reliability and stability of the entire fire protection system. Surface treatment of fire valves is an important step in the production process, affecting not only the appearance quality of the fire valves but also their corrosion resistance, wear resistance, and sealing performance. Traditional fire valve surface grinding equipment struggles to achieve comprehensive and uniform grinding of fire valves with complex shapes and structures. Its grinding methods are limited, resulting in low surface treatment precision. Furthermore, the lack of effective protective measures allows grinding debris to easily scatter, leading to uneven grinding and inconsistent surface roughness. This negatively impacts subsequent coating effects and sealing performance, ultimately reducing the overall quality and lifespan of the fire valve. Splashing debris not only threatens operator safety but also contaminates the work environment, increasing cleanup costs. Traditional equipment also lacks an effective height adjustment mechanism, making it difficult to adjust the grinding height according to different fire valve specifications. This poor adaptability prevents appropriate surface treatment for different valve sizes, potentially resulting in over- or under-grinding, affecting product quality, reducing production efficiency, and increasing production costs. Additionally, the fixed position of the limiting mechanism in traditional equipment cannot be flexibly adjusted to accommodate different valve sizes or location requirements, hindering accurate limiting and potentially causing valve displacement during processing, affecting processing precision and reducing product quality. To address these issues, this application proposes a surface treatment device for fire valve processing. Summary of the Invention

[0003] This invention proposes a surface treatment device for fire valve processing to solve the technical problems existing in the background art.

[0004] To address the aforementioned problems, this invention proposes a surface treatment device for fire valve processing, comprising a base, a mounting plate, an adjustment mechanism, a grinding mechanism, a limiting mechanism, and a conveyor belt. The conveyor belt is fixedly connected to the base, and loading platforms are fixedly connected to both sides of the conveyor belt. A threaded adjustment mechanism is provided on the base below the conveyor belt, and a limiting mechanism is provided on the adjustment mechanism. The mounting plate is fixedly connected to one side of the base, and the grinding mechanism is provided on the side of the conveyor belt near the mounting plate.

[0005] Preferably, the grinding mechanism includes a mounting frame, a mounting slot, a second drive motor, a first synchronous pulley, a synchronous belt, a second synchronous pulley, a first telescopic rod, a grinding blade, a drive rod, a drive wheel, a swinging component, a linkage rod, a fixed rod, a worm gear, a protective cover, a second telescopic rod, a synchronous rod, and a worm wheel. The base has four sets of first telescopic rods symmetrically arranged on the side near the mounting plate. The output end of the first telescopic rod is fixedly connected to the mounting frame. The mounting frame has a mounting slot inside. The second drive motor is embedded in the upper side of the mounting slot. The output end of the second drive motor is fixedly connected to the first synchronous pulley. The second synchronous pulley is movably connected to the mounting slot below the first synchronous pulley. A synchronous belt is fitted on the first and second synchronous pulleys. A grinding blade is detachably connected to one end of the second synchronous pulley on the mounting frame. The mounting frame has a protective cover on the side near the grinding blade. Preferably, a drive rod is provided between the first telescopic rods. The upper side of the drive rod has a threaded structure, and a worm gear is provided in the base of the drive rod. A fixed rod is movably connected to the side of the base near the worm gear. A worm is provided on the fixed rod. The worm and the worm gear cooperate with each other, and a drive wheel is fixedly connected to one side of the fixed rod. Preferably, the base is provided with a first telescopic cylinder at the bottom, and swinging parts are symmetrically and movably connected to both sides inside the base. A linkage rod is fixedly connected between the swinging parts. A second telescopic rod is fixedly connected to the output end of the first telescopic cylinder. The swinging parts are movably connected to the second telescopic rod, and a synchronization rod is movably connected between the swinging parts. Preferably, the upper side of the swing member has a gear structure, the swing member and the drive wheel cooperate with each other, and a protective plate is fixedly connected to the side of the swing member away from the mounting plate; Preferably, the adjustment mechanism includes a first drive motor, a slide rail, a sliding block, a threaded rod, and a threaded sleeve. The first drive motor is fixedly connected to one side of the mounting plate, and slide rails are symmetrically arranged on the side of the base away from the mounting plate. Sliding blocks are slidably connected to the slide rails, and a threaded sleeve is provided on one side of the sliding block. The output end of the first drive motor is fixedly connected to a threaded rod, and the threaded rod and the threaded sleeve are threadedly engaged. Preferably, the limiting mechanism includes a rotating seat, a rotating frame, a limiting guide plate, a rotating component, a second telescopic cylinder, a rotating plate, a fixed plate, a transmission rod, a limiting frame, a fixed rack, and a connecting component. A fixed plate is fixedly connected to the upper side of the sliding block, and a rotating seat is symmetrically arranged on one side of the fixed plate. A rotating frame is movably connected to the rotating seat. A limiting guide plate is movably connected to the side of the rotating frame away from the rotating seat, and a movable rod is movably connected to the rotating frame near the rotating seat. A transmission wheel is fixedly connected to the middle of the movable rod. Preferably, a rotating component is fixedly connected to one side of the fixed plate, a second telescopic cylinder is movably connected to the rotating component, a rotating plate is movably connected to the upper side of the fixed plate, connecting components are fixedly connected to both sides of the rotating plate, a transmission rod is movably connected to the side of the connecting component away from the rotating plate, a transmission rod is fixedly connected to the output end of the second telescopic cylinder, and a limit frame is fixedly connected to the side of the fixed plate away from the second telescopic cylinder. Preferably, the transmission rod on one side is located on the limiting frame, and a fixed rack is fixedly connected to the transmission rod. The fixed rack meshes with the transmission wheel, and multiple auxiliary wheels are evenly arranged on the limiting guide plate. The above-described technical solution of the present invention has the following beneficial technical effects: 1. The second drive motor starts, serving as the power source for the entire grinding process. The output of the second drive motor drives the first synchronous pulley to rotate. Since a synchronous belt is fitted on both the first and second synchronous pulleys, the rotation of the first synchronous pulley will drive the second synchronous pulley to rotate synchronously under the action of the synchronous belt. The second synchronous pulley is detachably connected to the grinding blades, so the rotation of the second synchronous pulley will drive the grinding blades to rotate at high speed, thereby performing surface grinding on the fire valve on the conveyor belt. The protective cover is set to prevent the debris generated during the grinding process from flying out, thus playing a safety protection role.

[0006] 2. The first telescopic cylinder at the bottom of the base is activated, and its output end pushes the second telescopic rod to extend and retract. The second telescopic rod is movably connected to the swing component. When the second telescopic rod extends and retracts, it drives the swing component to swing around its movable connection point. The swing components are connected by a linkage rod and a synchronization rod to ensure that the swing components on both sides can swing synchronously. The upper side of the swing component has a gear structure, which cooperates with the drive wheel. The swing of the swing component will drive the drive wheel to rotate. The drive wheel is fixed on one side of the fixed rod, so the rotation of the drive wheel will drive the fixed rod to rotate. The fixed rod is equipped with a worm gear, which cooperates with the worm wheel on the drive rod. Since the upper side of the drive rod has a threaded structure, its rotation is threaded with the mounting bracket, causing the mounting bracket to move vertically along the first telescopic rod, thereby realizing the adjustment of the grinding blade height to adapt to the grinding needs of different specifications of fire valves.

[0007] 3. When the equipment needs to adjust the position of the limit mechanism, the first drive motor is the power source for the adjustment mechanism. When the first drive motor starts running, it will drive the threaded rod to rotate. At the same time, there are slide rails symmetrically arranged on the side of the base away from the mounting plate. Sliding blocks are slidably connected on the slide rails. A threaded sleeve is provided on one side of the sliding block, and the threads between the threaded rod and the threaded sleeve are engaged with each other. When the threaded rod rotates, the threaded sleeve that engages with it will move linearly along the slide rail. Therefore, the fixed plate and the limit mechanism installed on the fixed plate will move together with the sliding block, thereby realizing the adjustment of the position of the limit mechanism to adapt to the processing of fire valves with different specifications or position requirements.

[0008] 4. When the fire valve needs to be limited, the second telescopic cylinder starts working, and its output end will extend or retract, driving the transmission rod to move. The transmission rod is connected to the rotating plate through a connector, and the rotating plate is movably connected to the upper side of the fixed plate. This constrains and guides the movement of the transmission rod. At the same time, one side of the transmission rod is located on the limit frame, which restricts the direction of movement of the transmission rod, ensuring stable linear movement. A fixed rack is fixedly connected to the transmission rod, and the fixed rack meshes with the transmission wheel in the middle of the movable rod. When the transmission rod moves under the drive of the second telescopic cylinder... During linear motion, the fixed rack drives the transmission wheel to rotate. The movable rod is movably connected to the rotating frame near the rotating seat. Therefore, the rotation of the transmission wheel drives the movable rod to move, which in turn causes the rotating frame to rotate along the rotating seat. A limit guide plate is movably connected to the side of the rotating frame away from the rotating seat. The rotation of the rotating frame drives the limit guide plate to move. The limit guide plate is equipped with multiple auxiliary wheels at equal intervals. These auxiliary wheels can reduce the friction when in contact with the fire valve, making the limiting process smoother. At the same time, they can better guide and limit the fire valve, ensuring the positional accuracy of the fire valve during the processing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a surface treatment device for fire valve processing proposed in this invention.

[0010] Figure 2 This is a top view of a surface treatment device for fire valve processing proposed in this invention.

[0011] Figure 3 This is a schematic diagram of the internal structure of the mounting groove in the grinding mechanism of a fire valve processing surface treatment equipment proposed in this invention.

[0012] Figure 4 This is a schematic diagram of the grinding mechanism in a surface treatment equipment for fire valve processing proposed in this invention.

[0013] Figure 5 The present invention proposes Figure 2 A schematic diagram of the cross-sectional structure along the AA direction.

[0014] Figure 6 This is a schematic diagram showing the cooperation between the second telescopic rod and the swinging component in the grinding mechanism of a surface treatment equipment for fire valve processing proposed in this invention.

[0015] Figure 7 This is a schematic diagram of the limiting mechanism in a surface treatment equipment for fire valve processing proposed in this invention.

[0016] Figure 8 for Figure 2A magnified schematic diagram of part B.

[0017] Reference numerals: 1. Base; 2. Mounting plate; 3. Adjustment mechanism; 301. First drive motor; 302. Slide rail; 303. Sliding block; 304. Threaded rod; 305. Threaded sleeve; 4. Grinding mechanism; 401. Mounting bracket; 402. Mounting groove; 403. Second drive motor; 404. First synchronous pulley; 405. Synchronous belt; 406. Second synchronous pulley; 407. First telescopic rod; 408. Grinding blade; 409. Drive rod; 410. Drive wheel; 411. Swinging component; 412. Linkage rod; 413. Fixed rod 414. Worm gear; 415. Protective cover; 416. Second telescopic rod; 417. Synchronizing rod; 418. Worm wheel; 419. First telescopic cylinder; 5. Limiting mechanism; 501. Rotating seat; 502. Rotating frame; 503. Limiting guide plate; 504. Rotating component; 505. Second telescopic cylinder; 506. Rotating plate; 507. Fixed plate; 508. Transmission rod; 509. Limiting frame; 510. Fixed rack; 511. Connecting component; 512. Movable rod; 513. Transmission wheel; 6. Conveyor belt; 7. Loading platform; 8. Protective plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention. Example 1

[0019] Reference Figures 1-6 This embodiment provides a surface treatment equipment for fire valve processing, including a base 1, a mounting plate 2, an adjustment mechanism 3, a grinding mechanism 4, a limiting mechanism 5, and a conveyor belt 6. The conveyor belt 6 is fixedly connected to the base 1, and a loading platform 7 is fixedly connected to both sides of the conveyor belt 6. The base 1 is provided with a threaded adjustment mechanism 3 below the conveyor belt 6, and the adjustment mechanism 3 is provided with a limiting mechanism 5. The mounting plate 2 is fixedly connected to one side of the base 1, and the grinding mechanism 4 is provided on the side of the conveyor belt 6 near the mounting plate 2. In this embodiment, specifically, the grinding mechanism 4 includes a mounting bracket 401, a mounting groove 402, a second drive motor 403, a first synchronous pulley 404, a synchronous belt 405, a second synchronous pulley 406, a first telescopic rod 407, a grinding blade 408, a drive rod 409, a drive wheel 410, a swinging component 411, a linkage rod 412, a fixed rod 413, a worm gear 414, a protective cover 420, a second telescopic rod 416, a synchronous rod 417, and a worm gear 418. The base 1 has four sets of first telescopic rods 407 symmetrically arranged on the side near the mounting plate 2. A mounting bracket 401 is fixedly connected to the output end. A mounting groove 402 is provided inside the mounting bracket 401. A second drive motor 403 is embedded in the upper side of the mounting groove 402. A first synchronous pulley 404 is fixedly connected to the output end of the second drive motor 403. A second synchronous pulley 406 is movably connected to the mounting groove 402 below the first synchronous pulley 404. A synchronous belt 405 is fitted on the first synchronous pulley 404 and the second synchronous pulley 406. A grinding blade 408 is detachably connected to one end of the second synchronous pulley 406 on the mounting bracket 401. A protective cover 420 is provided on the side of the mounting bracket 401 near the grinding blade 408. A drive rod 409 is provided between the first telescopic rods 407. The upper side of the drive rod 409 has a threaded structure, and a worm gear 418 is provided in the base 1. A fixed rod 413 is movably connected to the side of the base 1 near the worm gear 418. A worm 414 is provided on the fixed rod 413. The worm 414 and the worm gear cooperate with each other. A drive wheel 410 is fixedly connected to one side of the fixed rod 413. The base 1 is provided with a first telescopic cylinder 419 at the bottom, and swinging parts 411 are symmetrically and movably connected on both sides inside the base 1. A linkage rod 412 is fixedly connected between each swinging part 411. A second telescopic rod 416 is fixedly connected to the output end of the first telescopic cylinder 419. The second telescopic rod 416 is movably connected to the swinging parts 411, and a synchronization rod 417 is movably connected between the swinging parts 411. The upper side of the swing member 411 has a gear structure, the swing member 411 and the drive wheel 410 cooperate with each other, and a protective plate 8 is fixedly connected to the side of the swing member 411 away from the mounting plate 2. The second drive motor 403 starts and begins to operate as the power source for the entire grinding action. The output end of the second drive motor 403 drives the first synchronous pulley 404 to rotate. Since the first synchronous pulley 404 and the second synchronous pulley 406 are fitted with a synchronous belt 405, the rotation of the first synchronous pulley 404 will drive the second synchronous pulley 406 to rotate synchronously under the action of the synchronous belt 405. The second synchronous pulley 406 is detachably connected to the grinding blade 408. Therefore, the rotation of the second synchronous pulley 406 will drive the grinding blade 408 to rotate at high speed, thereby performing surface grinding on the fire valve on the conveyor belt. The protective cover 420 is set to prevent the debris generated during the grinding process from flying out, and plays a safety protection role. The first telescopic cylinder 419 at the bottom of the base 1 is activated, and its output end pushes the second telescopic rod 416 to extend and retract. The second telescopic rod 416 is movably connected to the swing member 411. When the second telescopic rod 416 extends and retracts, it drives the swing member 411 to swing around its movable connection point. The swing members 411 are connected by a linkage rod 412 and a synchronizing rod 417 to ensure that the swing members 411 on both sides can swing synchronously. The upper side of the swing member 411 has a gear structure, which cooperates with the drive wheel 410. The swing of the swing member 411 will drive... The drive wheel 410 rotates and is fixed to one side of the fixed rod 413. Therefore, the rotation of the drive wheel 410 will drive the fixed rod 413 to rotate. The fixed rod 413 is provided with a worm gear 414, which cooperates with the worm wheel 418 on the drive rod 409. Since the upper side of the drive rod 409 has a threaded structure, its rotation is threaded with the mounting bracket 401, causing the mounting bracket 401 to move vertically along the first telescopic rod 407, thereby realizing the adjustment of the height of the grinding blade 408 to meet the grinding needs of different specifications of fire valves. Example 2

[0020] Reference Figure 2 , Figure 7 and Figure 8 This embodiment is based on the previous embodiment, but differs from the previous embodiment in that the adjustment mechanism 3 includes a first drive motor 301, a slide rail 302, a sliding block 303, a threaded rod 304, and a threaded sleeve 305. The first drive motor 301 is fixedly connected to one side of the mounting plate 2, and the slide rail 302 is symmetrically arranged on the side of the base 1 away from the mounting plate 2. The sliding block 303 is slidably connected to the slide rail 302, and the threaded sleeve 305 is arranged on one side of the sliding block 303. The output end of the first drive motor 301 is fixedly connected to the threaded rod 304, and the threaded rod 304 and the threaded sleeve 305 are threadedly engaged with each other. The limiting mechanism 5 includes a rotating seat 501, a rotating frame 502, a limiting guide plate 503, a rotating component 504, a second telescopic cylinder 505, a rotating plate 506, a fixed plate 507, a transmission rod 508, a limiting frame 509, a fixed rack 510, and a connecting component 511. The upper side of the sliding block 303 is fixedly connected to the fixed plate 507. The rotating seat 501 is symmetrically arranged on one side of the fixed plate 507. The rotating frame 502 is movably connected to the rotating seat 501. The side of the rotating frame 502 away from the rotating seat 501 is movably connected to the limiting guide plate 503. The rotating frame 502 is movably connected to the rotating seat 501. The middle part of the moving rod 512 is fixedly connected to the transmission wheel 513. A rotating component 504 is fixedly connected to one side of the fixed plate 507. A second telescopic cylinder 505 is movably connected to the rotating component 504. A rotating plate 506 is movably connected to the upper side of the fixed plate 507. Connecting components 511 are fixedly connected to both sides of the rotating plate 506. A transmission rod 508 is movably connected to the side of the connecting component 511 away from the rotating plate 506. The output end of the second telescopic cylinder 505 is fixedly connected to the transmission rod 508. A limit frame 509 is fixedly connected to the side of the fixed plate 507 away from the second telescopic cylinder 505. The transmission rod 508 on one side is located on the limiting frame 509, and a fixed rack 510 is fixedly connected to the transmission rod 508. The fixed rack 510 meshes with the transmission wheel 513, and multiple auxiliary wheels are evenly arranged on the limiting guide plate 503. When the equipment needs to adjust the position of the limiting mechanism 5, the first drive motor 301 is the power source of the adjusting mechanism 3. When the first drive motor 301 starts to run, it will drive the threaded rod 304 to rotate. At the same time, a slide rail 302 is symmetrically arranged on the side of the base 1 away from the mounting plate 2. A sliding block 303 is slidably connected on the slide rail 302. A threaded sleeve 305 is arranged on one side of the sliding block 303. The threads between the threaded rod 304 and the threaded sleeve 305 are engaged with each other. When the threaded rod 304 rotates, the threaded sleeve 305 that engages with it will move linearly along the slide rail 302. Therefore, the fixed plate 507 and the limiting mechanism 5 installed on the fixed plate 507 will move together with the sliding block 303, thereby realizing the adjustment of the position of the limiting mechanism 5 to adapt to the processing of fire valves with different specifications or position requirements. When the fire valve needs to be limited, the second telescopic cylinder 505 starts working, and its output end will extend and retract, driving the transmission rod 508 to move. The transmission rod 508 is connected to the rotating plate 506 through the connector 511, and the rotating plate 506 is movably connected to the upper side of the fixed plate 507. This restricts and guides the movement of the transmission rod 508. At the same time, one side of the transmission rod 508 is located on the limit frame 509, which limits the direction of movement of the transmission rod 508, ensuring that it makes stable linear movements. A fixed rack 510 is fixedly connected to the transmission rod 508, and the fixed rack 510 meshes with the transmission wheel 513 in the middle of the movable rod 512. When the transmission rod 508 is in the second telescopic cylinder 505 When the fixed rack 510 drives the transmission wheel 513 to rotate, the movable rod 512 is movably connected to the rotating frame 502 near the rotating seat 501. Therefore, the rotation of the transmission wheel 513 will drive the movable rod 512 to move, thereby causing the rotating frame 502 to rotate along the rotating seat 501. The side of the rotating frame 502 away from the rotating seat 501 is movably connected to the limit guide plate 503. The rotation of the rotating frame 502 will drive the limit guide plate 503 to move. The limit guide plate 503 is provided with multiple auxiliary wheels at equal intervals. These auxiliary wheels can reduce the friction when in contact with the fire valve, making the limiting process smoother. At the same time, they can better guide and limit the fire valve, ensuring the positional accuracy of the fire valve during the processing.

[0021] It should be understood that the specific embodiments described above are for illustrative purposes or to explain the principles of the invention, and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A surface treatment device for processing fire valves, characterized in that, The system includes a base (1), a mounting plate (2), an adjustment mechanism (3), a grinding mechanism (4), a limiting mechanism (5), and a conveyor belt (6). The base (1) is fixedly connected to the conveyor belt (6), and both sides of the conveyor belt (6) are fixedly connected to the loading platform (7). The base (1) is provided with a threaded adjustment mechanism (3) below the conveyor belt (6), and the adjustment mechanism (3) is provided with a limiting mechanism (5). The mounting plate (2) is fixedly connected to one side of the base (1), and the grinding mechanism (4) is provided on the side of the conveyor belt (6) near the mounting plate (2). The adjustment mechanism (3) includes a first drive motor (301), a slide rail (302), a sliding block (303), a threaded rod (304), and a threaded sleeve (305). The first drive motor (301) is fixedly connected to one side of the mounting plate (2), and the slide rail (302) is symmetrically arranged on the side of the base (1) away from the mounting plate (2). The sliding block (303) is slidably connected to the slide rail (302), and the threaded sleeve (305) is arranged on one side of the sliding block (303). The output end of the first drive motor (301) is fixedly connected to the threaded rod (304), and the threaded rod (304) and the threaded sleeve (305) are threadedly engaged with each other.

2. The surface treatment equipment for fire valve processing according to claim 1, characterized in that, The grinding mechanism (4) includes a mounting bracket (401), a mounting groove (402), a second drive motor (403), a first synchronous pulley (404), a synchronous belt (405), a second synchronous pulley (406), a first telescopic rod (407), a grinding blade (408), a drive rod (409), a drive wheel (410), a swinging component (411), a linkage rod (412), a fixed rod (413), a worm gear (414), a protective cover (415), a second telescopic rod (416), a synchronous rod (417), and a worm wheel (418). The base (1) is symmetrically provided with the first telescopic rods (407) on one side near the mounting plate (2). There are four sets of the first telescopic rods (407). The output end is fixedly connected to a mounting bracket (401). The mounting bracket (401) has an internal mounting groove (402). A second drive motor (403) is embedded in the upper side of the mounting groove (402). The output end of the second drive motor (403) is fixedly connected to a first synchronous pulley (404). A second synchronous pulley (406) is movably connected in the mounting groove (402) below the first synchronous pulley (404). A synchronous belt (405) is fitted on the first synchronous pulley (404) and the second synchronous pulley (406). A grinding blade (408) is detachably connected to one end of the second synchronous pulley (406) on the mounting bracket (401). A protective cover (415) is provided on the side of the mounting bracket (401) near the grinding blade (408).

3. The surface treatment equipment for fire valve processing according to claim 2, characterized in that, A drive rod (409) is provided between the first telescopic rods (407). The upper side of the drive rod (409) has a threaded structure, and a worm gear (418) is provided in the base (1) of the drive rod (409). A fixed rod (413) is movably connected to the side of the base (1) near the worm gear (418). A worm (414) is provided on the fixed rod (413). The worm (414) and the worm gear cooperate with each other, and a drive wheel (410) is fixedly connected to one side of the fixed rod (413).

4. The surface treatment equipment for fire valve processing according to claim 3, characterized in that, The base (1) is provided with a first telescopic cylinder (419) at the bottom, and swinging parts (411) are symmetrically and movably connected on both sides of the base (1). A linkage rod (412) is fixedly connected between the swinging parts (411). A second telescopic rod (416) is fixedly connected to the output end of the first telescopic cylinder (419). The swinging parts (411) are movably connected to the second telescopic rod (416), and a synchronization rod (417) is movably connected between the swinging parts (411).

5. The surface treatment equipment for processing fire valves according to claim 4, characterized in that, The upper side of the swing member (411) has a gear structure. The swing member (411) and the drive wheel (410) cooperate with each other, and a protective plate (8) is fixedly connected to the side of the swing member (411) away from the mounting plate (2).

6. The surface treatment equipment for fire valve processing according to claim 1, characterized in that, The limiting mechanism (5) includes a rotating seat (501), a rotating frame (502), a limiting guide plate (503), a rotating component (504), a second telescopic cylinder (505), a rotating plate (506), a fixed plate (507), a transmission rod (508), a limiting frame (509), a fixed rack (510), and a connecting component (511). The upper side of the sliding block (303) is fixedly connected to the fixed plate (507). The rotating seat (501) is symmetrically arranged on one side of the fixed plate (507). The rotating frame (502) is movably connected to the rotating seat (501). The limiting guide plate (503) is movably connected to the side of the rotating frame (502) away from the rotating seat (501). The movable rod (512) is movably connected to the rotating frame (502) near the rotating seat (501). The transmission wheel (513) is fixedly connected to the upper middle part of the movable rod (512).

7. The surface treatment equipment for fire valve processing according to claim 6, characterized in that, A rotating component (504) is fixedly connected to one side of the fixed plate (507). A second telescopic cylinder (505) is movably connected to the rotating component (504). A rotating plate (506) is movably connected to the upper side of the fixed plate (507). Connecting components (511) are fixedly connected to both sides of the rotating plate (506). A transmission rod (508) is movably connected to the side of the connecting component (511) away from the rotating plate (506). The output end of the second telescopic cylinder (505) is fixedly connected to the transmission rod (508). A limit frame (509) is fixedly connected to the side of the fixed plate (507) away from the second telescopic cylinder (505).

8. The surface treatment equipment for fire valve processing according to claim 7, characterized in that, The transmission rod (508) on one side is located on the limiting frame (509), and a fixed rack (510) is fixedly connected to the transmission rod (508). The fixed rack (510) meshes with the transmission wheel (513), and multiple auxiliary wheels are evenly arranged on the limiting guide plate (503).

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