Manual gate valve convenient to operate

Abstract

The utility model relates to the field of air volume control valves, in particular to a manual gate valve convenient to operate, which comprises a valve body and a valve plate used for sealing the valve body, the valve plate is slidably connected with the valve body, a support is arranged on the valve body, a locking structure is arranged on the valve plate, and the locking structure is connected with the valve body. And the locking structures are fixed at different heights of the bracket so as to fix the valve plate at different heights of the valve body. The installation structure has the advantages of being convenient to install and low in installation cost.

Description

Technical Field

[0001] This application relates to the field of airflow control valves, and more particularly to a manual slide gate valve that is easy to operate. Background Technology

[0002] A slide gate valve, also known as a knife gate valve, is a type of valve where the gate and seat are always in tight contact for a seal. Its principle is that the gate has a circular opening the same size as the flow path; opening and closing the gate causes this opening to completely separate from and then rendezvous with the flow path. The advantages of this valve are that the valve body has no grooves in the flow path, preventing media from getting stuck or blocked, and it has full-bore flow characteristics. Its sealing structure can be either soft or hard seal. Penetration-type knife gate valves are characterized by precision construction, good manufacturability, and a compact structure. The sealing seat has a movable design with wear resistance and automatic compensation functions, resulting in a longer service life.

[0003] Currently, there are many types of slide gate valves on the market, most of which are pneumatically or otherwise driven switches. They generally have high production costs, and existing slide gate valves are difficult to adapt to complex installation environments. Furthermore, pneumatically or otherwise driven valves require an external power source, resulting in high installation costs. Utility Model Content

[0004] To address the issues of inconvenient installation and high installation costs associated with power slide valves, this application provides an easy-to-operate manual slide valve.

[0005] The manual slide gate valve provided in this application adopts the following technical solution:

[0006] A user-friendly manual slide gate valve includes a valve body and a valve plate for closing the valve body. The valve plate is slidably connected to the valve body. A bracket is provided on the valve body, and a locking structure is provided on the valve plate. The locking structure is fixed at different heights of the bracket to fix the valve plate at different heights of the valve body.

[0007] By adopting the above technical solution, the valve plate can open or close the valve body, thereby opening or closing the ventilation duct. The bracket and locking structure make it easy for users to fix or unlock the valve plate. Unlike traditional automatic valve plates, it does not require an external power source, making installation convenient and operation simpler.

[0008] Optionally, the locking structure includes a locking bolt and a locking nut, the bracket has a through groove for the locking bolt to pass through and slide, and the locking nut is screwed to the locking bolt.

[0009] By adopting the above technical solution, locking bolts and locking nuts are used to lock or unlock the valve plate by turning the locking nuts, making the locking and unlocking process of the valve plate easy to operate. The through groove on the bracket makes the sliding trajectory of the locking bolts and locking nuts more precise, improving the smoothness of the valve plate sliding process.

[0010] Optionally, the locking nut is a wing nut.

[0011] By adopting the above technical solution, the two lugs of the wing nut make it easier for users to manually tighten the locking nut, thus making it easier to unlock the valve plate.

[0012] Optionally, the bracket is provided with a plurality of locking grooves, which are spaced apart along the direction of the through groove.

[0013] By adopting the above technical solution, the bolt head of the locking bolt can enter the locking groove after being tightened, so that the valve plate can support the locking screw through the locking groove during the fixing process, thereby improving the stability of the valve plate during the fixing process and reducing the possibility of the valve plate loosening and falling off.

[0014] Optionally, the locking structure includes a locking post, a locking block, and at least two locking claws. The bracket has a through groove for the locking post to pass through and slide. One end of the locking post is provided with a limiting plate, and the other end of the locking post passes through the through groove in sequence. The locking block slides on the locking post, and the locking claws are rotatably connected to the locking block to push the insert plate to press against the bracket.

[0015] By adopting the above technical solution, the use of locking claws and locking blocks can greatly reduce the need to tighten the locking nut. The valve plate can be pressed and fixed on the bracket by rotating the locking claws, which makes it easier to lock or tighten the valve plate.

[0016] Optionally, the locking pawl is provided with a locking disc, the side wall of the locking disc abuts against the insert plate, and the locking disc is eccentrically positioned with respect to the rotating shaft of the locking pawl.

[0017] By adopting the above technical solution, the eccentrically set locking disc will generate a certain thrust on the valve plate during rotation, thereby pressing the valve plate onto the bracket, and using the friction between the valve plate and the bracket to press the valve plate to different heights on the bracket, thus completing the fixation of the valve plate.

[0018] Optionally, the valve body is provided with multiple column baffles to confine the valve plate to the inside.

[0019] By adopting the above technical solution, the valve plate is restricted to the inside by the column baffle. First, the column baffle limits the movement of the valve plate, making the sliding trajectory of the valve plate clearer. At the same time, the column baffle also blocks the gap between the valve plate and the valve body, thereby producing a certain sealing effect and improving the overall airtightness of the valve.

[0020] Optionally, the bracket is provided with reinforcing ribs.

[0021] By adopting the above technical solution, the strength between the bracket and the valve body is improved by using reinforcing ribs, reducing the possibility of strength damage during the use of the plate valve and increasing the service life of the plate valve.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The valve plate can open or close the valve body, thereby opening or closing the ventilation duct. The bracket and locking structure make it easy for users to fix or unlock the valve plate. Unlike traditional automatic valve plates, it does not require an external power source, making it easy to install and simple to operate.

[0024] 2. After the bolt head of the locking bolt is tightened, it can enter the locking groove, so that the valve plate can be supported by the locking screw through the locking groove during the fixing process, thereby improving the stability of the valve plate during the fixing process and reducing the possibility of the valve plate loosening and falling off;

[0025] 3. By using locking claws and locking blocks, the need to tighten the locking nut can be greatly reduced. The valve plate can be pressed and secured onto the bracket by rotating the locking claws, making it easier to lock or tighten the valve plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a manual slide gate valve that is easy to operate, as described in this application.

[0027] Figure 2 This is a schematic diagram of a user-friendly manual slide gate valve according to Embodiment 1 of this application.

[0028] Figure 3 This is a cross-sectional view of the locking structure in Embodiment 1 of this application.

[0029] Figure 4 This is a cross-sectional view of the locking structure in Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Valve body; 11. Upper crossbeam; 12. Lower crossbeam; 13. Column; 14. Column baffle; 2. Valve plate; 3. Bracket; 30. Locking groove; 31. Reinforcing rib; 4. Locking structure; 41. Locking bolt; 42. Locking nut; 43. Locking post; 431. Limiting disc; 44. Locking block; 45. Locking claw; 451. Locking disc. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] Example 1:

[0033] This application discloses a user-friendly manual slide gate valve.

[0034] Reference Figures 1-3 A user-friendly manual slide gate valve includes a valve body 1 and a valve plate 2 for closing the valve body 1. The valve plate 2 is slidably connected to the valve body 1. A bracket 3 is provided on the valve body 1, and a locking structure 4 is provided on the valve plate 2. The locking structure 4 is fixed at different heights to the bracket 3 to fix the valve plate 2 at different heights to the valve body 1. The valve body 1 includes a horizontally arranged upper crossbeam 11, a lower crossbeam 12, and two vertically arranged columns 13, with the upper crossbeam located above the lower crossbeam 12. The two ends of the upper crossbeam 11 are welded and fixed to the two columns 13, and the two ends of the lower crossbeam 12 are welded and fixed to the two columns 13, forming a rectangular frame. The upper crossbeam 11 has a notch for the valve plate 2 to slide through. The valve plate 2 passes through the notch and moves vertically up and down to open or close the frame of the valve body 1.

[0035] The valve plate 2 can open or close the valve body 1, thereby opening or closing the ventilation duct. The bracket 3 and locking structure 4 make it easy for the user to fix or unlock the valve plate 2. Unlike traditional automatic valves, it does not require an external power source, making it easy to install and simple to operate.

[0036] In a preferred embodiment, the valve body 1 is provided with a plurality of column baffles 13, the column baffles 13 being located on the inner side of the column 13, and two column baffles 13 being provided on each column 13. The valve plate 2 is slidably disposed between two column baffles 13 to confine the valve plate 2 to the inner side.

[0037] The valve plate 2 is confined to the inside by the baffle plate 13. First, the movement of the valve plate 2 is limited by the baffle plate 13, making the sliding trajectory of the valve plate 2 clearer. At the same time, the baffle plate 13 also blocks the gap between the valve plate 2 and the valve body 1, thereby producing a certain sealing effect and improving the overall airtightness of the valve.

[0038] Furthermore, the support 3 is provided with reinforcing ribs 31.

[0039] The reinforcement rib 31 improves the strength between the bracket 3 and the valve body 1, reduces the possibility of strength damage during the use of the plate valve, and increases the service life of the plate valve.

[0040] In a preferred embodiment, the locking structure 4 includes a locking bolt 41 and a locking nut 42. The bracket 3 has a through groove for the locking bolt 41 to pass through and slide. The locking nut 42 is screwed to the locking bolt 41.

[0041] Locking bolt 41 and locking nut 42 are used to lock or unlock the valve plate 2 by turning the locking nut 42, making the locking and unlocking process easy to operate. The through groove on the bracket 3 makes the sliding trajectory of locking bolt 41 and locking nut 42 more precise, improving the smoothness of the valve plate 2 during sliding.

[0042] Furthermore, the locking nut 42 is a wing nut.

[0043] The two lugs of the wing nut make it easier for the user to manually tighten the locking nut 42, thus making it easier to unlock the valve plate 2.

[0044] In a preferred embodiment, the bracket 3 is provided with a plurality of locking grooves 30, which are spaced apart along the direction of the through groove.

[0045] After the bolt head of the locking bolt 41 is tightened, it can enter the locking groove 30, so that the valve plate 2 can support the locking screw through the locking groove 30 during the fixing process, thereby improving the stability of the valve plate 2 during the fixing process and reducing the possibility of the valve plate 2 loosening and falling off.

[0046] Example 2:

[0047] This application discloses a user-friendly manual slide gate valve.

[0048] The difference between Example 2 and Example 1 is that, referring to... Figure 4 The locking structure 4 includes a locking post 43, a locking block 44, and at least two locking claws 45. The bracket 3 has a through groove for the locking post 43 to pass through and slide. One end of the locking post 43 is provided with a limiting plate 431, and the other end of the locking post 43 passes through the through groove in sequence. The locking block 44 slides on the locking post 43, and the locking claws 45 are rotatably connected to the locking block 44 to push the insert plate to press against the bracket 3.

[0049] By using the locking claw 45 and the locking block 44, the need to tighten the locking nut 42 can be greatly reduced. By rotating the locking claw 45, the valve plate 2 can be pressed and fixed on the bracket 3, making it easier to lock or tighten the valve plate 2.

[0050] In a preferred embodiment, a locking disc 451 is provided on the locking claw 45, the side wall of the locking disc 451 abuts against the insert plate, and the rotating shafts of the locking disc 451 and the locking claw 45 are eccentrically arranged.

[0051] The eccentrically positioned locking disc 451 exerts a certain thrust on the valve plate 2 during rotation, thereby pressing the valve plate 2 onto the bracket 3. The friction between the valve plate 2 and the bracket 3 is used to press the valve plate 2 onto the bracket 3 at different heights, thus completing the fixation of the valve plate 2.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A manually operated, hand-operable, plug valve, characterized by: The utility model provides a valve body (1) and the valve plate (2) for closing valve body (1), the valve plate (2) is connected with the valve body (1) slidingly, the valve body (1) is provided with support (3), the valve plate (2) is provided with locking structure (4), the locking structure (4) is fixed to the support (3) different height to fix the valve plate (2) to the valve body (1) different height.

2. A manually operated plug valve for ease of operation according to claim 1, characterized in that: The locking structure (4) includes locking bolt (41) and locking nut (42), the support (3) is provided with through slot for the locking bolt (41) to pass through and slide, the locking nut (42) is screwed with the locking bolt (41).

3. A manually operated plug valve for ease of operation according to claim 2, characterized in that: The locking nut (42) adopts butterfly nut.

4. A manually operated plug valve for ease of operation according to claim 1, characterized in that: The locking structure (4) includes locking column (43), locking block (44) and at least two locking claws (45), the support (3) is provided with through slot for the locking column (43) to pass through and slide, one end of the locking column (43) is provided with limit disc (431), the other end of the locking column (43) sequentially penetrates the through slot, the locking block (44) slides on the locking column (43), the locking claw (45) is rotationally connected with the locking block (44) to push the valve plate (2) and the support (3) compression.

5. A manually operated panel valve for ease of operation according to claim 4 wherein: The locking claw (45) is provided with locking disc (451), the sidewall of locking disc (451) is in abutment with the plug, and the locking disc (451) and the pivot shaft of the locking claw (45) are eccentrically arranged.

6. A manually operated plug valve for ease of operation according to claim 2, characterized in that: The support (3) is provided with a plurality of locking grooves (30), and the plurality of locking grooves (30) are arranged at intervals along the direction of the through groove.

7. A manually operated plug valve for ease of operation according to claim 1, characterized in that: The valve body (1) is provided with a plurality of vertical column (13) baffle for limiting the valve plate (2) on the inside.

8. A manually operated plug valve for ease of operation according to claim 1, characterized in that: The support (3) is provided with a reinforcing rib plate (31).

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