Valve cast steel structural member

Abstract

The utility model relates to the technical field of valves, and provides a valve cast steel structural member which comprises a valve seat and flange plates, the flange plates are fixed to the two sides of the valve seat respectively, a valve deck is installed at the top end of the valve seat, a threaded rod penetrates through the interior of the valve deck, a handle is fixed to the top end of the threaded rod, and an installation seat is arranged in the valve seat. Fixing structures are arranged on the two sides of the mounting base. The fixed structure is arranged, the movable block is pulled, the movable block drives the clamping block to move to the outside of the clamping groove through the connecting rod, the valve element is moved, the valve element drives the connecting block to move into the mounting base, the movable block is loosened, and the clamping block is pushed to move into the clamping groove under the elastic force action of the reset spring, so that the valve element is fixed. And therefore, the mounting seat and the connecting block are mutually fixed, the function that the valve element of the device is convenient to replace is achieved, and the convenience of the valve cast steel structural part in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve cast steel structural part. Background Art

[0002] Valves are pipe accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. They are control components in fluid conveying systems and have functions such as cutoff, adjustment, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. There are many types of valves, and valve cast steel structures are an important part of them.

[0003] To this end, the patent with publication number CN206845953U discloses a valve, including a valve body, a valve stem and a valve plate, wherein a circular groove is provided at the end of the valve plate, an anti-deflection gasket is provided in the circular groove, the valve stem passes through the valve body and abuts against the anti-deflection gasket, and the valve cover passes through the valve stem and is fixedly connected to the valve body. The valve has a simple structure, and prevents the valve stem center and the valve body center from being not in the same straight line, which causes the valve plate to be deflected by the valve stem, thereby ensuring the sealing of the valve and extending the service life of the valve.

[0004] The sealing performance of the valve is ensured by the mutual cooperation between the installed components when the valve is in use. However, it is inconvenient to replace the valve core during use, and the valve core is easily worn out after long-term use, thereby affecting its sealing performance. Utility Model Content

[0005] The utility model aims to provide a valve cast steel structure to solve the defect that the existing valve cast steel structure is inconvenient to replace the valve core.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a valve cast steel structure, including a valve seat and a flange;

[0007] Flanges are fixed on both sides of the valve seat, a valve cover is installed on the top of the valve seat, a threaded rod runs through the inside of the valve cover, and a handle is fixed on the top of the threaded rod;

[0008] A mounting seat is arranged inside the valve seat, and a fixing structure is arranged on both sides of the mounting seat, and the fixing structure comprises a fixing seat, a movable groove, a connecting rod, a moving block, a return spring, a clamping block and a clamping groove, and the fixing seat is fixed to both sides of the mounting seat;

[0009] A connecting block is arranged inside the mounting seat, a bottom end of the connecting block extends to the outside of the mounting seat and is fixed with a valve core, and a sealing structure is arranged on the outside of the valve core.

[0010] When using the device, by providing a fixed structure, the device realizes the function of facilitating replacement of the valve core, thereby improving the convenience of the valve cast steel structure when in use; by providing a sealing structure, the device realizes the function of facilitating sealing, thereby improving the applicability of the valve cast steel structure when in use.

[0011] Preferably, the valve seat and the valve cover are fixed to each other by fixing bolts, and the threaded rod and the valve cover are designed to be threadedly connected.

[0012] Preferably, the bottom end of the threaded rod extends to the inside of the mounting seat and forms a rotating structure with the mounting seat, and an anti-slip layer is provided on the outer side of the handle.

[0013] Preferably, the sealing structure comprises a limiting groove, a sealing ring and a cavity, wherein the limiting groove is arranged at both ends of the valve core, the limiting groove is provided with a sealing ring inside, and the sealing ring is provided with a cavity inside. The sealing ring is sleeved inside the limiting groove so that the sealing ring and the valve core are mutually clamped and fixed, and the cavity is provided inside the sealing ring.

[0014] Preferably, the sealing ring and the valve core form a clamping structure through a limiting groove, and the outer diameter of the sealing ring is greater than the thickness of the limiting groove. Under the action of the cavity, the valve core drives the sealing ring to fully contact the valve seat, thereby enhancing the sealing between the valve core and the valve seat.

[0015] Preferably, the fixing seat is provided with a movable groove inside, the movable groove is provided with a clamping block inside, a connecting rod is fixed on one side of the clamping block, a clamping groove is provided inside the connecting block on the other side of the clamping block, one end of the connecting rod extends to the outside of the fixing seat and is fixed with a moving block, and a reset spring is sleeved on the outside of the connecting rod inside the movable groove. Pull the moving block, the moving block drives the clamping block to move to the outside of the clamping groove through the connecting rod, and move the valve core, so that the valve core drives the connecting block to move to the inside of the mounting seat.

[0016] Preferably, the clamping block and the connecting block form a clamping structure through the clamping groove, and the clamping block and the connecting rod form a telescopic structure through a reset spring. When the moving block is released, the clamping block is pushed to move into the clamping groove under the elastic force of the reset spring, thereby fixing the mounting seat and the connecting block to each other.

[0017] The valve cast steel structure provided by the utility model has the following advantages:

[0018] By providing a fixed structure, the moving block is pulled, and the moving block drives the clamping block to move to the outside of the clamping groove through the connecting rod, and the valve core is moved, so that the valve core drives the connecting block to move to the inside of the mounting seat, and the moving block is released. Under the elastic force of the return spring, the clamping block is pushed to move to the inside of the clamping groove, so that the mounting seat and the connecting block are fixed to each other, realizing the function of facilitating the replacement of the valve core of the device, thereby improving the convenience of the cast steel structure of the valve when in use;

[0019] By providing a sealing structure, the sealing ring is sleeved inside the limiting groove, so that the sealing ring and the valve core are clamped and fixed to each other, and a cavity is provided inside the sealing ring. Under the action of the cavity, the valve core drives the sealing ring to fully contact the valve seat, thereby enhancing the sealing between the valve core and the valve seat, realizing the function of facilitating sealing of the device, thereby improving the applicability of the cast steel structure of the valve when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the main cross-sectional structure of the sealing structure of the utility model;

[0023] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0024] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the fixed structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. valve seat; 2. flange; 3. valve cover; 4. threaded rod; 5. handle; 6. valve core; 7. sealing structure; 701. limit groove; 702. sealing ring; 703. cavity; 8. fixing structure; 801. fixing seat; 802. movable groove; 803. connecting rod; 804. moving block; 805. reset spring; 806. clamping block; 807. clamping groove; 9. mounting seat; 10. connecting block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The valve cast steel structure provided by the utility model includes a valve seat 1 and a flange 2. Flanges 2 are fixed on both sides of the valve seat 1. A valve cover 3 is installed on the top of the valve seat 1. A threaded rod 4 runs through the inside of the valve cover 3. A handle 5 is fixed on the top of the threaded rod 4. A mounting seat 9 is arranged inside the valve seat 1. A fixing structure 8 is arranged on both sides of the mounting seat 9. The fixing structure 8 includes a fixing seat 801, a movable groove 802, a connecting rod 803, a moving block 804, a reset spring 805, a clamping block 806 and a clamping groove 807. The fixing seat 801 is fixed on both sides of the mounting seat 9. The inside of the fixing seat 801 is provided with a movable groove 802. The inside of the movable groove 802 is provided with a clamping block 806. The clamping block 806 A connecting rod 803 is fixed on one side, and a clamping groove 807 is opened inside the connecting block 10 on the other side of the clamping block 806. One end of the connecting rod 803 extends to the outside of the fixed seat 801 and is fixed with a movable block 804. A reset spring 805 is sleeved on the outside of the connecting rod 803 in the movable groove 802. The clamping block 806 and the connecting block 10 form a clamping structure through the clamping groove 807. The clamping block 806 and the connecting rod 803 form a telescopic structure through the reset spring 805. The valve seat 1 and the valve cover 3 are fixed to each other by fixing bolts. The threaded rod 4 and the valve cover 3 are designed with a threaded connection. The bottom end of the threaded rod 4 extends to the inside of the mounting seat 9 and forms a rotating structure with the mounting seat 9. The outside of the handle 5 is provided with an anti-slip layer.

[0028] Reference Figure 3 and Figure 4 As shown, pull the moving block 804, the moving block 804 drives the clamping block 806 to move to the outside of the clamping groove 807 through the connecting rod 803, move the valve core 6, so that the valve core 6 drives the connecting block 10 to move to the inside of the mounting seat 9, release the moving block 804, and under the elastic force of the reset spring 805, push the clamping block 806 to move to the inside of the clamping groove 807, thereby fixing the mounting seat 9 and the connecting block 10 to each other.

[0029] A connecting block 10 is provided inside the mounting seat 9, and the bottom end of the connecting block 10 extends to the outside of the mounting seat 9 and is fixed with a valve core 6. A sealing structure 7 is provided on the outside of the valve core 6, and the sealing structure 7 includes a limiting groove 701, a sealing ring 702 and a cavity 703. The limiting grooves 701 are provided at both ends inside the valve core 6, and the limiting grooves 701 are each provided with a sealing ring 702, and the sealing ring 702 is each provided with a cavity 703. The sealing ring 702 and the valve core 6 form a locking structure through the limiting groove 701, and the outer diameter of the sealing ring 702 is greater than the thickness of the limiting groove 701.

[0030] Reference Figure 2 and Figure 3As shown, the sealing ring 702 is sleeved inside the limiting groove 701, so that the sealing ring 702 and the valve core 6 are clamped and fixed to each other, and a cavity 703 is set inside the sealing ring 702. Under the action of the cavity 703, the valve core 6 drives the sealing ring 702 to fully contact the valve seat 1, thereby enhancing the sealing between the valve core 6 and the valve seat 1.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. Valve cast steel structure, including valve seat (1) and flange (2); Features: Flanges (2) are fixed on both sides of the valve seat (1), a valve cover (3) is installed on the top of the valve seat (1), a threaded rod (4) penetrates the interior of the valve cover (3), and a handle (5) is fixed on the top of the threaded rod (4); A mounting seat (9) is arranged inside the valve seat (1), and fixing structures (8) are arranged on both sides of the mounting seat (9), and the fixing structure (8) comprises a fixing seat (801), a movable groove (802), a connecting rod (803), a moving block (804), a return spring (805), a clamping block (806) and a clamping groove (807), and the fixing seat (801) is fixed to both sides of the mounting seat (9); A connecting block (10) is arranged inside the mounting seat (9), the bottom end of the connecting block (10) extends to the outside of the mounting seat (9) and is fixed with a valve core (6), and a sealing structure (7) is arranged on the outside of the valve core (6).

2. The valve cast steel structure according to claim 1, characterized in that: The valve seat (1) and the valve cover (3) are fixed to each other via fixing bolts, and the threaded rod (4) and the valve cover (3) are designed to be threadedly connected.

3. The valve cast steel structure according to claim 1, characterized in that: The bottom end of the threaded rod (4) extends to the interior of the mounting seat (9) and forms a rotating structure with the mounting seat (9), and an anti-slip layer is provided on the outer side of the handle (5).

4. The valve cast steel structure according to claim 1, characterized in that: The sealing structure (7) comprises a limiting groove (701), a sealing ring (702) and a cavity (703); the limiting groove (701) is arranged at both ends inside the valve core (6); the limiting groove (701) is provided with a sealing ring (702); and the sealing ring (702) is provided with a cavity (703) inside.

5. The valve cast steel structure according to claim 4, characterized in that: The sealing ring (702) and the valve core (6) form a locking structure via the limiting groove (701), and the outer diameter of the sealing ring (702) is greater than the thickness of the limiting groove (701).

6. The valve cast steel structure according to claim 1, characterized in that: The fixed seat (801) is provided with a movable groove (802) inside, and a clamping block (806) is provided inside the movable groove (802). A connecting rod (803) is fixed on one side of the clamping block (806), and a clamping groove (807) is provided inside the connecting block (10) on the other side of the clamping block (806). One end of the connecting rod (803) extends to the outside of the fixed seat (801) and is fixed with a movable block (804). A return spring (805) is sleeved on the outside of the connecting rod (803) inside the movable groove (802).

7. The valve cast steel structure according to claim 6, characterized in that: The clamping block (806) and the connecting block (10) form a clamping structure via a clamping groove (807), and the clamping block (806) and the connecting rod (803) form a telescopic structure via a return spring (805).

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