Anti-loosening clamp soft sealing gate valve

Abstract

The utility model relates to the technical field of gate valves, provides an anti-loosening hoop soft sealing gate valve, and solves the problem of leakage caused by design defects of an existing gate valve. The check valve comprises a valve body, a valve cover arranged above the valve body, a support arranged above the valve cover and a rotating disc arranged above the support, a rotating rod is arranged in the support, a valve plate is arranged in the valve body, the bottom end of the rotating rod is connected with the valve plate, a limiting groove is formed in the rotating disc, an anti-loosening assembly is arranged in the limiting groove, and the anti-loosening assembly is connected with the rotating rod. The anti-loosening assembly comprises at least one limiting block and at least one reset spring, the reset spring is arranged above the limiting block, and an opening groove, a closing groove and at least one adjusting groove which are matched with the limiting block are formed in the top of the support. The limiting groove is formed in the rotating disc, the anti-loosening assembly is arranged in the limiting groove, and the opening groove, the closing groove and the adjusting groove in the top of the support are matched, so that the gate valve is in a stable opening, closing or fixed flow state.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically to a clamp-type soft-seal gate valve that prevents loosening. Background Technology

[0002] Gate valves are widely used in production and daily life. A gate valve generally consists of a valve body and a valve plate. Existing gate valves typically have flanges at both ends of the valve body, which are used to connect to pipelines. However, existing gate valves are hard-seal gate valves. Because the fluid passage of a hard-seal gate valve has grooves that fit the valve plate, hard objects such as sand in the fluid can become trapped in these grooves, affecting the valve's closure. Furthermore, with the development of modern materials, the application environment of gate valves has changed significantly. For example, in residential water supply systems, pipes are generally metal, while household water pipes are often PP-R pipes. Flange connections often cannot meet the needs of these residents.

[0003] When the gate valve is in the closed position, if the valve handle is accidentally touched, the valve handle will turn, causing the gate valve to open and resulting in leakage. Utility Model Content

[0004] Therefore, in order to address the above problems, this utility model provides a non-loosening clamp soft-seal gate valve, which solves the problem of leakage caused by design defects in existing gate valves.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A non-loosening clamp-type soft-seal gate valve includes a valve body, a valve cover disposed above the valve body, a bracket disposed above the valve cover, and a turntable disposed above the bracket. A rotating rod is provided inside the bracket, a valve plate is provided inside the valve body, and the bottom end of the rotating rod is connected to the valve plate. A limiting groove is provided on the turntable, and an anti-loosening component is provided in the limiting groove. The anti-loosening component includes at least one limiting block and at least one return spring. The return spring is disposed above the limiting block. The top of the bracket is provided with an opening groove, a closing groove, and at least one adjusting groove that match the limiting block.

[0007] Furthermore, the top of the bracket is provided with an installation groove, and a rotating block and a locking block are provided in the installation groove. The rotating block is sleeved on the rotating rod, and there is a thread between the rotating block and the rotating rod. The locking block is sleeved on the rotating block, and there is a thread between the locking block and the bracket. The top of the rotating block extends upward and is connected to the turntable.

[0008] Furthermore, a positioning nut is provided above the turntable.

[0009] Furthermore, the positioning nut is provided with a positioning hole, the positioning hole is provided with a positioning bolt, the top of the turntable is provided with a positioning groove, and the bottom end of the positioning bolt extends downward into the positioning groove.

[0010] Furthermore, the limiting block is provided with lifting tabs on both sides, and the lifting tabs are arc-shaped.

[0011] Furthermore, the opening groove, closing groove, and adjusting groove have different distances from the rotating rod, and when there are multiple adjusting grooves, the distance between each adjusting groove and the rotating rod is the same.

[0012] Furthermore, the opening slot, closing slot, and adjusting slot have the same spacing as the rotating rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model sets a limiting groove on the turntable, sets an anti-loosening component in the limiting groove, and cooperates with the opening groove, closing groove and adjusting groove on the top of the bracket. During the use of the gate valve, the anti-loosening component can be used to fix the turntable by cooperating with different grooves, so as to limit the rotation of the turntable, thereby making the gate valve open, close or fix the flow state stably. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the adjusting groove in an embodiment of the present utility model;

[0018] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 for Figure 2 Enlarged structural diagram at point B.

[0020] Explanation of icon numbers

[0021] Valve body 1;

[0022] Valve cover 2;

[0023] Bracket 3; Opening slot 31; Closing slot 32; Adjustment slot 33;

[0024] Turntable 4; Limiting groove 41; Positioning nut 42; Positioning hole 421; Positioning bolt 43; Positioning groove 44;

[0025] Rotating rod 5;

[0026] Valve plate 6;

[0027] Anti-loosening component 7; Limiting block 71; Return spring 72; Lifting plate 73;

[0028] Mounting slot 8; rotating block 81; locking block 82. Detailed Implementation

[0029] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0030] Example

[0031] like Figures 1 to 5 As shown, a non-loosening clamp-type soft-seal gate valve includes a valve body 1, a valve cover 2 disposed above the valve body 1, a bracket 3 disposed above the valve cover 2, and a turntable 4 disposed above the bracket 3. A rotating rod 5 is provided inside the bracket 3, and a valve plate 6 is provided inside the valve body 1. The bottom end of the rotating rod 5 is connected to the valve plate 6. A limiting groove 41 is provided on the turntable 4, and an anti-loosening component 7 is provided inside the limiting groove 41. The anti-loosening component 7 includes a limiting block 71 and a return spring 72. The return spring 72 is disposed above the limiting block 71. The top of the bracket 3 is provided with an opening groove 31, a closing groove 32, and an adjusting groove 33 that match the limiting block 71.

[0032] In this embodiment, the opening groove 31, closing groove 32, and adjusting groove 33 have the same distance from the rotating rod 5.

[0033] In other preferred embodiments, the opening slot 31, closing slot 32, and adjusting slot 33 have different distances from the rotating rod 5. When there are multiple adjusting slots 33, the distance between each adjusting slot 33 and the rotating rod 5 is the same. This design means that the opening slot 31, closing slot 32, and adjusting slot 33 each have a corresponding anti-loosening component 7. During the adjustment of the turntable 4, the anti-loosening component 7 only has a restrictive effect when it rotates to the corresponding slot, making it easier to adjust.

[0034] The top of the bracket 3 is provided with an installation groove 8, and a rotating block 81 and a locking block 82 are provided in the installation groove 8. The rotating block 81 is sleeved on the rotating rod 5, and there is a thread between the rotating block 81 and the rotating rod 5. The locking block 82 is sleeved on the rotating block 81, and there is a thread between the locking block 82 and the bracket 3. The top of the rotating block 81 extends upward and is connected to the turntable 4.

[0035] By setting the locking block 82 and the rotating block 81, when the anti-loosening component 7 on the turntable 4 rotates to a position where there is no corresponding slot, the locking block 82 can restrict the rotation of the rotating block 81, thereby restricting the rotation of the turntable 4 and preventing the turntable 4 from loosening.

[0036] A positioning nut 42 is provided above the turntable 4. The top end of the rotating block 81 extends upward toward the turntable 4. The positioning nut 42 is threadedly connected to the top end of the rotating block 81. A positioning hole 421 is provided on the positioning nut 421. A positioning bolt 43 is provided in the positioning hole 421. A positioning groove 44 is provided on the top of the turntable 4. The bottom end of the positioning bolt 43 extends downward into the positioning groove 44.

[0037] The installation of the turntable 4 is made more convenient by setting the positioning nut 42 and the positioning bolt 43, and the positioning nut 42 can be prevented from loosening during use.

[0038] In this embodiment, the limiting block 71 is provided with lifting tabs 73 on both sides, and the lifting tabs 73 are arc-shaped.

[0039] In other preferred embodiments, the lifting piece 73 may also be square.

[0040] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A clamp-type soft-seal gate valve with anti-loosening mechanism, comprising a valve body, a valve cover disposed above the valve body, a bracket disposed above the valve cover, and a turntable disposed above the bracket, wherein a rotating rod is disposed within the bracket, a valve plate is disposed within the valve body, and the bottom end of the rotating rod is connected to the valve plate, characterized in that: The rotary table is provided with a limiting slot, and a loosening prevention assembly is arranged in the limiting slot.

2. A soft seal gate valve of the type described in claim 1 wherein: The top of the support is provided with an installation slot, and a rotating block and a locking block are arranged in the installation slot.

3. A soft seal gate valve of the type described in claim 1 wherein: The rotary table is provided with a positioning nut.

4. A soft seal gate valve of the type defined in claim 3, characterised in that: The positioning nut is provided with a positioning hole, and a positioning bolt is arranged in the positioning hole.

5. A soft seal gate valve of the type described in claim 1 wherein: The limiting block is provided with a pulling piece on both sides.

6. A soft seal gate valve of the type described in claim 1 wherein: The opening slot, the closing slot and the adjusting slot have different distances from the rotating rod.

7. A soft seal gate valve of the type described in claim 1 wherein: The opening slot, the closing slot and the adjusting slot have the same distance from the rotating rod.

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