Highly clean check valve

Abstract

The utility model provides a high clean check valve relates to check valve technical field, including installation base, the surface center position of installation base is connected with the valve main part, the bottom of installation base is connected with mobile adjusting assembly, mobile adjusting assembly includes handle, the top of handle is connected with first gear, the inside of installation base is inserted with two -way screw rod, the position of two -way screw rod and first gear is connected with second gear with matching. In the utility model, when needing to adjust the interval of the clamp on both sides of the valve main part, the handle can be rotated to drive the first gear to rotate, and then the two -way screw rod can be rotated, so that the moving frame can adjust the interval between the clamps through the threaded rotation, improve the flexibility when installing the pipeline, avoid the problem that when the horizontal distance between the clamp and the valve main part needs to be adjusted in the corner of the wall, the equipment intensive area, etc.

Description

Technical Field

[0001] This utility model relates to the field of check valve technology, and in particular to a high-cleanliness check valve. Background Technology

[0002] A check valve (also known as a one-way valve or non-return valve) is an automatic valve whose core function is to force the medium to flow in one direction, preventing backflow from causing equipment damage, water hammer, pollution spread, and other problems.

[0003] As described in announcement number CN222633932U, a check valve includes a mounting base with a fixing mechanism. This invention places the pipe to be connected inside a placement hole on a fixed frame. By rotating a screw, the bottom end of the screw moves downward, causing a second fixing block to move downward. This causes a limiting slider to move within the limiting groove, thus limiting the movement of the second fixing block and ensuring its stability. The pipe is clamped and fixed by the first and second fixing blocks for subsequent connection to the valve body. Activating a hydraulic rod fixed to the inner wall of the groove moves a lifting block, which in turn moves the valve body up and down within the groove, allowing for height adjustment and better connection to the pipe.

[0004] This patent can clamp and fix the pipe to facilitate subsequent connection with the valve body. However, existing devices cannot adjust the distance between the clamp and the valve body according to the actual situation when clamping the pipe. This results in poor flexibility when installing the pipe. For example, it is not possible to adjust the lateral distance between the clamp and the valve body when it is necessary to adjust the distance in corners or densely populated equipment areas. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing devices cannot adjust the distance between the clamp and the valve body according to the actual situation when clamping pipes. This results in poor flexibility when installing pipes, such as when the lateral distance between the clamp and the valve body needs to be adjusted in corners or densely populated equipment areas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-cleanliness check valve, comprising a mounting base, a valve body connected to the center of the surface of the mounting base, a movable adjustment assembly connected to the bottom of the mounting base, the movable adjustment assembly comprising a handle, a first gear connected to the top of the handle, a bidirectional screw inserted inside the mounting base, a second gear connected to the bidirectional screw at a position matching the first gear, bearing sleeves connected to both sides of the bidirectional screw near the second gear, movable frames inserted inside both sides of the mounting base, threaded holes opened inside the movable frames, a clamp connected to the top of one side of the movable frame, guide rods connected to the front and rear ends of the bottom of the clamp, guide holes opened inside the mounting base matching the guide rods, limit grooves opened on both sides of the bottom of the mounting base, and limit blocks connected to the bottom of the movable frames.

[0007] Furthermore, the throttle and the first gear are fixedly connected, and the position and size of the first gear match the position and size of the second gear.

[0008] Furthermore, the first gear and the second gear are meshed together, and the bidirectional screw and the bearing sleeve are rotatably connected.

[0009] Furthermore, the bidirectional screw is connected to the movable frame via a threaded hole, and the inner wall of the guide hole is in contact with the outer surface of the guide rod.

[0010] Furthermore, the limiting block and the limiting groove form a sliding connection.

[0011] Furthermore, the mounting base is connected to the front and rear ends of the valve body with a dustproof and clean assembly, which includes a first outer shell and a second outer shell.

[0012] Furthermore, connecting blocks are connected to both sides of the first outer shell, and slots are opened inside the connecting blocks, with two sets of springs connected inside the slots.

[0013] Furthermore, push rods are inserted into the interior of both sets of springs, handles are connected to the top of the two sets of push rods, push plates are connected to the bottom of the two sets of push rods, and a locking block is connected to the bottom of the push plates.

[0014] Furthermore, the second outer shell is connected to a fixing block at the position that matches each set of connecting blocks, and the surface of the fixing block is provided with a slot.

[0015] Furthermore, the card block and the card slot form an engaging connection, the push plate and the spring form an elastic structure, and the surface of the card block has an oblique opening.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, when it is necessary to adjust the spacing between the clamps on both sides of the valve body, the throttle can be turned to drive the first gear to rotate, thereby enabling the bidirectional screw to rotate. This allows the moving frame to adjust the spacing between the clamps by rotating the screw thread, improving the flexibility of pipe installation and avoiding the problem that the lateral distance between the clamps and the valve body cannot be adjusted when it is necessary to adjust the clamps in areas such as corners or densely populated equipment areas.

[0018] 2. In this utility model, the first and second outer shells can achieve a dustproof effect on the valve body, avoiding the problem that the valve body surface is prone to dust accumulation due to the dusty installation environment, thus improving the surface cleanliness of the valve body. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of a high-cleanliness check valve is provided for this utility model;

[0020] Figure 2 This utility model presents a three-dimensional structural diagram of a high-cleanliness check valve from another angle.

[0021] Figure 3 An explosion-proof structural diagram of a high-purity check valve is provided for this utility model.

[0022] Figure 4 A schematic diagram of a partial explosion structure of a high-purity check valve is provided for this utility model;

[0023] Figure 5 A schematic diagram of the main structure of a high-cleanliness check valve is provided for this utility model;

[0024] Figure 6 This utility model presents a schematic diagram of the cross-sectional structure of the connecting block of a high-cleanliness check valve.

[0025] Legend: 1. Mounting base; 2. Valve body; 3. Moving adjustment assembly; 301. Rotary handle; 302. First gear; 303. Second gear; 304. Bidirectional screw; 305. Bearing sleeve; 306. Moving frame; 307. Threaded hole; 308. Guide hole; 309. Clamp; 310. Guide rod; 311. Limiting block; 312. Limiting groove; 4. Dustproof and clean assembly; 401. First outer shell; 402. Second outer shell; 403. Connecting block; 404. Slot; 405. Spring; 406. Push rod; 407. Handle; 408. Push plate; 409. Locking block; 410. Fixing block; 411. Locking groove. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1, as Figure 1 - Figure 4 As shown, this utility model provides a high-cleanliness check valve, including a mounting base 1. A valve body 2 is connected to the center of the surface of the mounting base 1. A movable adjustment assembly 3 is connected to the bottom of the mounting base 1. The movable adjustment assembly 3 includes a handle 301. A first gear 302 is connected to the top of the handle 301. A bidirectional screw 304 is inserted into the inside of the mounting base 1. A second gear 303 is connected to the bidirectional screw 304 at a position matching the first gear 302. Bearing sleeves 305 are connected to both sides of the bidirectional screw 304 near the second gear 303. Movable frames 306 are inserted into both sides of the mounting base 1. Threaded holes 307 are opened inside the movable frames 306. A clamp 309 is connected to the top of one side of the movable frame 306. The bottom front and rear ends of the clamp 309 are... Each component is connected to a guide rod 310. The mounting base 1 is matched with the guide rod 310 and has a guide hole 308 inside. Limiting grooves 312 are opened on both sides of the bottom of the mounting base 1. The bottom of the moving frame 306 is connected to a limiting block 311. The throttle 301 is fixedly connected to the first gear 302. The position and size of the first gear 302 match the position and size of the second gear 303. The first gear 302 and the second gear 303 are meshed. The bidirectional screw 304 is rotatably connected to the bearing sleeve 305. The bidirectional screw 304 is threadedly connected to the moving frame 306 through the threaded hole 307. The inner wall of the guide hole 308 is in contact with the outer surface of the guide rod 310. The limiting block 311 and the limiting groove 312 are slidably connected.

[0029] The effect achieved by Embodiment 1 is that when the valve body 2 needs to be installed, the distance between the two sets of clamps 309 can be adjusted according to the actual situation. When it is necessary to increase the distance between the two sets of clamps 309, the handle 301 can be reversed, so that the handle 301 can drive the first gear 302 to reverse, thereby allowing the first gear 302 to mesh and rotate in the opposite direction with the second gear 303. This allows the second gear 303 to drive the bidirectional screw 304 to reverse. When the bidirectional screw 304 reverses, it will also rotate in the opposite direction with the two sets of moving frames 306 through the threaded hole 307. In this way, the two sets of moving frames 306 will move to both sides at the same time through the reverse threaded rotation. When the moving frames 306 move, they will also drive the limit block. 311 slides within the limiting groove 312, serving as a limit. When the moving frame 306 moves, it also drives the guide rod 310 to slide within the guide hole 308, improving the stability of the moving frame 306 during movement. Once the two sets of clamps 309 are adjusted to the appropriate position, the handle 301 can be stopped. When it is necessary to reduce the distance between the two sets of clamps 309, the handle 301 can be turned clockwise, and the bidirectional screw 304 will be driven to rotate clockwise through the meshing of gears. This allows the two sets of moving frames 306 to drive the two sets of clamps 309 to move inward simultaneously, thereby reducing the distance between them. This improves the flexibility of installing pipelines on the valve body 2 and avoids the problem that the lateral distance between the clamps 309 and the valve body 2 cannot be adjusted when it is necessary to adjust the distance in areas such as corners or densely populated equipment areas.

[0030] Example 2, as Figure 5 and Figure 6 As shown, the front and rear ends of the mounting base 1, which matches the valve body 2, are connected to a dustproof and clean assembly 4. The dustproof and clean assembly 4 includes a first outer shell 401 and a second outer shell 402. Both sides of the first outer shell 401 are connected to connecting blocks 403. The connecting blocks 403 have slots 404 inside. Two sets of springs 405 are connected inside the slots 404. Push rods 406 are inserted into the two sets of springs 405. Handles 407 are connected to the top of the two sets of push rods 406. Push plates 408 are connected to the bottom of the two sets of push rods 406. A locking block 409 is connected to the bottom of the push plate 408. Fixing blocks 410 are connected to the second outer shell 402 at the positions that match each set of connecting blocks 403. The surface of the fixing blocks 410 has a locking groove 411. The locking block 409 and the locking groove 411 form a locking connection. The push plate 408 and the spring 405 form an elastic structure. The surface of the locking block 409 has a bevel.

[0031] The effect achieved in Embodiment 2 is that when the valve body 2 needs maintenance and inspection, both sets of handles 407 can be pulled upwards simultaneously. This allows the handles 407 to drive the push plate 408 via the push rod 406 to compress the spring 405, thereby causing the push plate 408 to pull the locking block 409 out of the locking groove 411 of the fixing block 410. Then, the first outer shell 401 and the second outer shell 402 can be opened by rotating the hinge. At this time, the valve body 2 can be repaired. After the repair is completed, the first outer shell 401 and the second outer shell 402 can be simultaneously pushed inwards. When the fixed block 410 and the inclined position of the locking block 409 are pressed together, the locking block 409 will automatically retract. When the fixed block 410 is fully inserted into the connecting block 403, the spring 405 will push the push plate 408 through its own elastic force to drive the locking block 409 into the slot 411 for fixing. The first shell 401 and the second shell 402 can achieve the dustproof effect of the valve body 2, avoiding the problem that the surface of the valve body 2 is easy to attract dust due to the dusty environment, which makes it difficult to clean, and improving the surface cleanliness of the valve body 2.

[0032] Working principle: When it is necessary to adjust the spacing between the clamps 309 on both sides of the valve body 2, the handle 301 can be rotated to drive the first gear 302 to rotate, which in turn allows the bidirectional screw 304 to rotate. This allows the moving frame 306 to adjust the spacing between the clamps 309 by rotating the screw thread, improving the flexibility of pipeline installation and avoiding the problem of not being able to adjust the lateral distance between the clamps 309 and the valve body 2 when needed, such as in corners or areas with dense equipment. The dustproof design of the first shell 401 and the second shell 402 can effectively prevent dust from entering the installation environment. Since the surface of the valve body 2 has many edges and corners, it is easy to attract dust and difficult to clean without protection. The double-layer shell structure can prevent dust from directly depositing on the surface of the valve body, thereby significantly improving its cleanliness and reducing the difficulty of subsequent maintenance.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A high-cleanliness check valve, comprising a mounting base (1), characterized in that: The valve body (2) is connected to the center of the surface of the mounting base (1), and the movable adjustment component (3) is connected to the bottom of the mounting base (1). The movable adjustment assembly (3) includes a throttle (301), a first gear (302) connected to the top of the throttle (301), a bidirectional screw (304) inserted into the interior of the mounting base (1), a second gear (303) connected to the bidirectional screw (304) at a position matching the first gear (302), bearing sleeves (305) connected to both sides of the bidirectional screw (304) near the second gear (303), and movable frames inserted into both sides of the mounting base (1). (306) The movable frame (306) has a threaded hole (307) inside. A clamp (309) is connected to the top of one side of the movable frame (306). Guide rods (310) are connected to the front and rear ends of the bottom of the clamp (309). A guide hole (308) is opened inside the mounting base (1) that matches the guide rod (310). Limiting grooves (312) are opened on both sides of the bottom of the mounting base (1). A limiting block (311) is connected to the bottom of the movable frame (306).

2. The high-cleanliness check valve according to claim 1, characterized in that: The throttle (301) is fixedly connected to the first gear (302), and the position and size of the first gear (302) match the position and size of the second gear (303).

3. The high-cleanliness check valve according to claim 2, characterized in that: The first gear (302) and the second gear (303) are meshed together, and the bidirectional screw (304) and the bearing sleeve (305) are rotatably connected.

4. The high-cleanliness check valve according to claim 3, characterized in that: The bidirectional screw (304) is connected to the movable frame (306) by a threaded hole (307), and the inner wall of the guide hole (308) is in contact with the outer surface of the guide rod (310).

5. A high-cleanliness check valve according to claim 4, characterized in that: The limiting block (311) and the limiting groove (312) form a sliding connection.

6. The high-cleanliness check valve according to claim 1, characterized in that: The mounting base (1) is matched with the valve body (2) and the front and rear ends are connected to a dustproof and clean assembly (4). The dustproof and clean assembly (4) includes a first outer shell (401) and a second outer shell (402).

7. A high-cleanliness check valve according to claim 6, characterized in that: Both sides of the first outer shell (401) are connected to connecting blocks (403), and the connecting blocks (403) have slots (404) inside, and two sets of springs (405) are connected inside the slots (404).

8. A high-cleanliness check valve according to claim 7, characterized in that: Both sets of springs (405) have push rods (406) inserted inside them. The top of the two sets of push rods (406) is connected to a handle (407), and the bottom of the two sets of push rods (406) is connected to a push plate (408). The bottom of the push plate (408) is connected to a locking block (409).

9. A high-cleanliness check valve according to claim 8, characterized in that: The second outer shell (402) is connected to a fixing block (410) at a position that matches each set of connecting blocks (403), and the surface of the fixing block (410) is provided with a slot (411).

10. A high-cleanliness check valve according to claim 9, characterized in that: The locking block (409) and the locking slot (411) form a locking connection, the push plate (408) and the spring (405) form an elastic structure, and the surface of the locking block (409) is provided with a bevel.

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