Continuous drain valve with removable seat

Abstract

The utility model discloses a continuous sewage valve with a detachable valve seat, which belongs to the technical field of sewage valves. The continuous sewage valve with a detachable valve seat comprises a valve seat body and a mounting seat detachably fixed to the top of the valve seat body, a support seat is fixed to the top of the mounting seat, through grooves are provided at both ends of the support seat, and protrusions corresponding to the through grooves are symmetrically fixed on both sides of the top surface of the support seat, a positioning groove is provided on the inner wall of the protrusion, and a button is protrudingly provided on the outer wall of the protrusion, a connecting rod is fixed to both sides of the top surface of the valve seat body, and positioning blocks that are engaged with the positioning grooves are elastically inserted at both ends of the connecting rod, a screw is threadedly inserted at the top of the support seat, a rotating disk is fixedly installed at the top of the screw, and a water outlet pipe is fixedly installed at the bottom of the valve seat body. The continuous sewage valve with a detachable valve seat improves the convenience of installing and disassembling the valve seat body.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage discharge valves, and in particular relates to a continuous sewage discharge valve with a detachable valve seat. Background Art

[0002] Continuous blowdown valves are often used for continuous blowdown of boiler drums in thermal power plants to ensure the quality of boiler feed water. Therefore, the working condition of the blowdown valve is the worst among all regulating, throttling and pressure reducing valves. There are many types of blowdown valves in the prior art, such as multi-hole throttling regulating valves, right-angle multi-stage throttling valves, etc. However, multi-hole throttling regulating valves are prone to clogging when there are many impurities, which reduces the performance of use. The right-angle multi-stage plunger blowdown valve is difficult to repair due to the large number of throttling matching positions. At the same time, in order to ensure the sealing performance in harsh environments, the blowdown valves in the prior art are often connected by welding between the valve seat and the valve body, and between the valve body and the blowdown pipe. In order to ensure welding, the valve seat and the valve body can only be made of welded steel. Therefore, the steel is easily damaged under the influence of cavitation and erosion for a long time. Once damaged, the entire valve body must be replaced by cutting, which makes the existing blowdown valves very difficult to repair and replace.

[0003] The patent with application number 201920785865.1 discloses a continuous sewage valve, including: a valve body, which has a cavity inside, and a medium inlet connected to the cavity is opened on its side wall; a valve stem, which is sealed at one end of the cavity so that the other end of the cavity forms a medium outlet, and the valve stem can slide back and forth along the axis of the cavity; and a valve seat, which is detachably arranged in the cavity, and during the sliding process of the valve stem, the end of the valve stem close to the medium outlet cooperates with the valve seat to adjust the flow rate of the medium outlet. The sewage valve of the utility model is provided with a detachable valve seat. When the valve seat is damaged by cavitation and erosion, the valve seat can be replaced without cutting the entire sewage valve.

[0004] Although the above technical solution can keep the drain valve fixed by the wedge-shaped lug, the internal clamping fixing method requires squeezing the wedge-shaped lug to remove the valve seat during disassembly. However, since the valve seat is a rigid structure, the wedge-shaped lug cannot be squeezed to deform during disassembly, which makes the installation and disassembly of the valve seat very laborious. Utility Model Content

[0005] (1) Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a continuous sewage valve with a removable valve seat. The continuous sewage valve with a removable valve seat is intended to solve the problem in the prior art that the valve seat needs to be removed by squeezing the wedge-shaped lugs due to the internal clamping fixing method during disassembly. However, since the valve seat is a rigid structure, the wedge-shaped lugs cannot be squeezed to deform during disassembly, which makes the installation and disassembly of the valve seat very laborious.

[0007] (2) Technical solution

[0008] In order to solve the above technical problems, the utility model provides a continuous sewage valve with a detachable valve seat, which comprises a valve seat body and a mounting seat detachably fixed to the top end of the valve seat body, a support seat being fixed to the top end of the mounting seat, through grooves being provided at both ends of the mounting seat, and raised portions corresponding to the through grooves being symmetrically fixed on both sides of the top end surface of the mounting seat, a positioning groove being provided on the inner wall of the raised portion, and a button being protruding from the outer wall of the raised portion, connecting rods being fixed on both sides of the top end surface of the valve seat body, and positioning blocks being elastically inserted at both ends of the connecting rods and engaged with the positioning grooves.

[0009] When using the continuous sewage valve with a detachable valve seat of the present technical solution, the mounting seat is connected to the valve seat body by providing a valve seat body and a mounting seat detachably mounted on the top of the valve seat body, and after the connection, the connecting rod is fitted and inserted into the through grooves opened at both ends of the mounting seat until the sealing gasket abuts and seals against the mounting seat after the connecting rod passes through the through hole, and at the same time, the spring in the telescopic groove on the connecting rod pushes the positioning block to fit and insert into the positioning groove on the inner wall of the raised part, so that the mounting seat and the valve seat body are directly fixed. When the valve seat body is disassembled, the button is squeezed from the outer wall of the raised part to push the positioning block out of the positioning groove, and the connecting rod is slid and disassembled from the through groove, and the valve seat body is separated from the mounting seat after disassembly, thereby improving the convenience of installation and disassembly of the valve seat body.

[0010] Preferably, a screw rod is threadedly inserted into the top end of the support seat, and a turntable is fixedly mounted on the top end of the screw rod.

[0011] Furthermore, a water outlet pipe is fixedly installed on the bottom end of the valve seat body, and a water inlet pipe is arranged on the side wall of the valve seat body.

[0012] Furthermore, a sealing gasket abutting against the mounting seat is embedded and fixed at the top end of the valve seat body, and a sealing portion connected to the screw rod is slidably inserted at the bottom end of the mounting seat.

[0013] Furthermore, the top end of the connecting rod is symmetrically provided with telescopic grooves, and the positioning block is inserted into the telescopic grooves.

[0014] Furthermore, a spring is embedded in the telescopic slot, and two ends of the spring are respectively in contact with the inner wall of the telescopic slot and the positioning block.

[0015] Furthermore, one end of the positioning block extending out of the telescopic slot is inserted into the positioning slot, and one end of the button extending into the positioning slot abuts against the positioning block.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is provided with a valve seat body and a mounting seat detachably mounted on the top of the valve seat body, so that the mounting seat is connected to the valve seat body, and after the connection, the connecting rod is fit and inserted in the through grooves opened at both ends of the mounting seat until the connecting rod passes through the through hole and the sealing gasket abuts and seals with the mounting seat, and at the same time, the spring in the telescopic groove on the connecting rod pushes the positioning block to fit and insert in the positioning groove on the inner wall of the raised part, so that the mounting seat and the valve seat body are directly fixed. When the valve seat body is disassembled, a button is squeezed from the outer wall of the raised part to push the positioning block out of the positioning groove, and the connecting rod is slid and disassembled from the through groove, and the valve seat body is separated from the mounting seat after disassembly, thereby improving the convenience of installation and disassembly of the valve seat body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the support base structure of the utility model;

[0022] Figure 3 For the utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 4 This is a schematic diagram of the valve seat structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the connecting rod split structure of the utility model.

[0025] The markings in the attached drawings are: 1. valve seat body; 2. water outlet pipe; 3. water inlet pipe; 4. support seat; 5. turntable; 6. screw; 7. mounting seat; 8. sealing part; 9. raised part; 10. positioning groove; 11. through groove; 12. button; 13. sealing gasket; 14. connecting rod; 15. telescopic groove; 16. spring; 17. positioning 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] This specific embodiment is a continuous sewage valve with a detachable valve seat, and its structural diagram is as follows Figure 1 and Figure 2 As shown, the continuous sewage valve with a detachable valve seat comprises a valve seat body 1 and a mounting seat 7 detachably fixed to the top of the valve seat body 1, a support seat 4 is fixed to the top of the mounting seat 7, through grooves 11 are provided at both ends of the mounting seat 7, and protrusions 9 corresponding to the through grooves 11 are symmetrically fixed on both sides of the top surface of the mounting seat 7, a positioning groove 10 is provided on the inner wall of the protrusion 9, and a button 12 is protrudingly provided on the outer wall of the protrusion 9, connecting rods 14 are fixed to both sides of the top surface of the valve seat body 1, and positioning blocks 17 that are clamped with the positioning grooves 10 are elastically inserted at both ends of the connecting rod 14, and the top of the support seat 4 is fixed to the bottom of the valve seat body 1. A screw rod 6 is threadedly inserted, a turntable 5 is fixedly installed on the top of the screw rod 6, an outlet pipe 2 is fixedly installed on the bottom end of the valve seat body 1, and a water inlet pipe 3 is provided on the side wall of the valve seat body 1, the mounting seat 7 is connected to the valve seat body 1, and after the connection, the connecting rod 14 is matched and inserted into the through grooves 11 opened at both ends of the mounting seat 7 until the connecting rod 14 passes through the through hole and the sealing gasket 13 abuts and seals against the mounting seat 7, and at the same time, the spring 16 in the telescopic groove 15 on the connecting rod 14 pushes the positioning block 17 to match and insert it into the positioning groove 10 on the inner wall of the raised portion 9, so that the mounting seat 7 and the valve seat body 1 are directly fixed.

[0028] like Figure 3 and Figure 4 As shown, a sealing gasket 13 abutting against the mounting seat 7 is embedded and fixed at the top of the valve seat body 1, a sealing portion 8 connected to the screw 6 is slidably inserted at the bottom end of the mounting seat 7, a telescopic groove 15 is symmetrically opened at the top of the connecting rod 14, a positioning block 17 is inserted in the telescopic groove 15, a spring 16 is embedded and installed in the telescopic groove 15, two ends of the spring 16 are respectively abutted against the inner wall of the telescopic groove 15 and the positioning block 17, one end of the positioning block 17 extending out of the telescopic groove 15 is inserted in the positioning groove 10, one end of the button 12 extending into the positioning groove 10 is abutted against the positioning block 17, the button 12 is squeezed from the outer wall of the raised portion 9 to push the positioning block 17 out of the positioning groove 10, and the connecting rod 14 is slidably removed from the through groove 11, and the valve seat body 1 is separated from the mounting seat 7 after removal.

[0029] The structural diagram of the support seat 4 of the continuous sewage valve with a detachable valve seat is as follows Figure 2 As shown, its Figure 2The enlarged schematic diagram of the structure at A is as follows Figure 3 The valve seat structure diagram is shown in Figure 4 As shown, the schematic diagram of the split structure of the connecting rod 14 is as follows Figure 5 shown.

[0030] Working principle: When disassembling the valve seat body 1, squeeze the button 12 from the outer wall of the raised portion 9 to push the positioning block 17 out of the positioning groove 10, and slide the connecting rod 14 from the through groove 11 to remove it, and separate the valve seat body 1 from the mounting seat 7 after disassembly. When installing the valve seat body 1, connect the mounting seat 7 to the valve seat body 1, and after connection, fit the connecting rod 14 in the through grooves 11 opened at both ends of the mounting seat 7 until the connecting rod 14 passes through the through hole and the sealing gasket 13 abuts against the mounting seat 7 for sealing. At the same time, the spring 16 in the telescopic groove 15 on the connecting rod 14 pushes the positioning block 17 to fit in the positioning groove 10 on the inner wall of the raised portion 9, so that the mounting seat 7 and the valve seat body 1 are directly fixed, thereby improving the convenience of installation and disassembly of the valve seat body 1.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 utility model shall be included in the protection scope of the present utility model.

Claims

1. A continuous sewage discharge valve with a detachable valve seat, the continuous sewage discharge valve with a detachable valve seat comprising a valve seat body (1) and a mounting seat (7) detachably fixed to the top of the valve seat body (1), characterized in that: A support seat (4) is fixed to the top of the mounting seat (7), through grooves (11) are provided at both ends of the mounting seat (7), and raised portions (9) corresponding to the through grooves (11) are symmetrically fixed on both sides of the top surface of the mounting seat (7), a positioning groove (10) is provided on the inner wall of the raised portion (9), and a button (12) is protruding from the outer wall of the raised portion (9), and connecting rods (14) are fixed to both sides of the top surface of the valve seat body (1), and positioning blocks (17) that are elastically inserted and engaged with the positioning grooves (10) are provided at both ends of the connecting rod (14).

2. The continuous sewage valve with a detachable valve seat according to claim 1, characterized in that: A screw rod (6) is threadedly inserted at the top end of the support seat (4), and a rotating disk (5) is fixedly mounted at the top end of the screw rod (6).

3. The continuous sewage valve with a detachable valve seat according to claim 1, characterized in that: A water outlet pipe (2) is fixedly mounted on the bottom end of the valve seat body (1), and a water inlet pipe (3) is arranged on the side wall of the valve seat body (1).

4. The continuous sewage valve with a detachable valve seat according to claim 1, characterized in that: A sealing gasket (13) abutting against the mounting seat (7) is embedded and fixed at the top end of the valve seat body (1), and a sealing portion (8) connected to the screw rod (6) is slidably inserted at the bottom end of the mounting seat (7).

5. The continuous sewage valve with a detachable valve seat according to claim 1, characterized in that: A telescopic slot (15) is symmetrically provided at the top end of the connecting rod (14), and the positioning block (17) is inserted into the telescopic slot (15).

6. The continuous sewage valve with a detachable valve seat according to claim 5, characterized in that: A spring (16) is embedded in the telescopic slot (15), and two ends of the spring (16) are respectively in contact with the inner wall of the telescopic slot (15) and the positioning block (17).

7. The continuous sewage discharge valve with a detachable valve seat according to claim 6, characterized in that: One end of the positioning block (17) extending out of the telescopic slot (15) is inserted into the positioning slot (10), and one end of the button (12) extending into the positioning slot (10) abuts against the positioning block (17).

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