CN2319640Y

CN2319640Y - Ball valve seat body with improved structure

Info

Publication number: CN2319640Y
Application number: CN 98202671
Authority: CN
Inventors: 吴乐瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-30
Filing date: 1998-03-30
Publication date: 1999-05-19
Anticipated expiration: 2008-03-30

Abstract

The utility model relates to a ball valve seat body, including ball valve seat main part and ball valve. The ball valve seat main body is formed by splicing a water inlet part and a water outlet part, the water inlet part comprises a water inlet joint and a ball valve seat, and the water outlet part comprises a limiting seat and a water outlet seat. The water inlet joint is provided with external threads, the ball valve seat is provided with internal threads, and the water inlet joint and the ball valve seat are combined in a screw locking way. The ball valve seat is provided with a ball valve accommodating chamber. The limiting seat is provided with inner screw threads, the water outlet seat is provided with outer screw threads, and the limiting seat and the water outlet seat are combined in a screw locking way. When the water inlet part is spliced with the water outlet part, the water inlet joint, the limiting seat and the first, second and third limiting chamfers on the water outlet seat respectively contact the ball valve. Can be forged and manufactured without casting sand holes.

Description

Ball valve seat body with improved structure

本实用新型涉及一种阀座体，更确切地说是涉及一种球阀座体。The utility model relates to a valve seat body, more precisely relates to a ball valve seat body.

一般的金属球阀座体普遍采用铸造工艺制作，由于铸造工需具备较高的翻砂铸造技术，因此人工成本较高，加之铸造工作十分辛苦，现今已很难聘用到愿意学习或继续从事铸造工作的人员，很令生产部门担忧。The general metal ball valve seat body is generally made by casting technology. Since the foundry workers need to have high sand casting technology, the labor cost is high, and the casting work is very hard. Nowadays, it is difficult to hire people who are willing to learn or continue to engage in casting work. personnel, which is very worrying for the production department.

此外，用铸造方法生产出来的球阀座体，经机器的车、钻等加工后往往才发现壁间有或大或小的砂孔，有砂孔的产品绝对是不良品，是不能投放到市场上的，否则不仅会破坏商誉还会因使用在管路中而造成液体或气体的渗漏，其后果是无法预先估量的。In addition, the ball valve seat produced by the casting method is often found to have large or small sand holes in the wall after being machined, drilled, etc. Products with sand holes are definitely defective products and cannot be put on the market. Otherwise, it will not only damage the goodwill but also cause leakage of liquid or gas due to the use in the pipeline, and the consequences cannot be estimated in advance.

本实用新型的目的是设计一种改进结构的球阀座体，其母件可用锻造工艺制作，球阀座内部经加工后不会有砂孔产生，不仅可提高产品合格率，而且易于加工。The purpose of this utility model is to design a ball valve seat body with an improved structure. The parent part can be made by forging technology. There will be no sand holes in the ball valve seat after processing, which can not only improve the product qualification rate, but also be easy to process.

本实用新型的目的是这样实现的，改进结构的球阀座体，包括球阀和球阀座主体，所述的球阀座主体由进水部分和出水部分相拼靠结合构成，其特征在于：所述球阀座主体的进水部分由进水接头和球阀座组装构成，所述球阀座主体的出水部分由限位座和出水座组装构成；所述进水接头一端是贯通的进水孔，另一端是与球阀座连接的管接头端，管接头端设有外螺牙，外螺牙后端的进水接头上设有挡缘，管接头端的进水孔内孔端设有第一限位倒角；所述球阀座一端与进水接头连接的接口处设有与进水接头的外螺牙螺锁的内螺牙，球阀座设有球阀容纳室，球阀座另一端是球阀装入口，设有内阶梯孔并与球阀容纳室连通；所述的限位座，于嵌入球阀容纳室内的连通孔端口内设有第二限位倒角，端口外设有与球阀座的内阶梯孔配合的台阶，于连通孔的另一端设有内螺牙；所述的出水座设有贯通的出水孔，出水孔一端与限位座连接的端口内设置有第三限位倒角，端口外的出水座外径上设有与限位座内螺牙螺锁的外螺牙，外螺牙后端的出水座上设有挡缘；球阀座的内螺牙套锁在进水接头管接头的外螺牙上，球阀座的接口抵靠定位于进水接头的挡缘处，所述的球阀嵌入球阀容纳室内吻靠于进水接头的第一倒角上定位球阀，出水座的外螺牙旋锁在限位座的内螺牙上，出水座挡缘抵靠于限位座的面缘处，所述的第二、第三限位倒角抵靠在所述的球阀上，所述限位座的台阶与所述球阀座的内阶梯孔相拼靠结合。The purpose of this utility model is achieved in this way. The ball valve seat body with improved structure includes a ball valve and a ball valve seat body. The ball valve seat body is composed of a water inlet part and a water outlet part. It is characterized in that: the ball valve The water inlet part of the seat body is assembled by a water inlet joint and a ball valve seat, and the water outlet part of the ball valve seat body is assembled by a limit seat and a water outlet seat; one end of the water inlet joint is a through water inlet hole, and the other end is a The pipe joint end connected with the ball valve seat is provided with external thread, the water inlet joint at the rear end of the external thread is provided with a retaining edge, and the inner hole end of the water inlet hole at the pipe joint end is provided with a first limit chamfer; The interface where one end of the ball valve seat is connected to the water inlet joint is provided with an inner thread that is locked with the outer thread of the water inlet joint. The ball valve seat is provided with a ball valve accommodation chamber. The stepped hole is in communication with the ball valve accommodation chamber; the limit seat is provided with a second limit chamfer in the port of the communication hole embedded in the ball valve accommodation chamber, and a step is provided outside the port to cooperate with the inner stepped hole of the ball valve seat, The other end of the communication hole is provided with an internal screw; the water outlet seat is provided with a through water outlet hole, and a third limit chamfer is arranged in the port connected to the limit seat at one end of the water outlet hole, and the outside of the water outlet seat outside the port There is an outer thread on the diameter that locks with the inner thread of the limit seat, and a retaining edge is provided on the water outlet seat at the rear end of the outer thread; the inner thread sleeve of the ball valve seat is locked on the outer thread of the water inlet joint. The interface of the ball valve seat is positioned against the retaining edge of the water inlet joint, the ball valve is embedded in the ball valve accommodation chamber and kissed against the first chamfer of the water inlet joint to position the ball valve, and the outer thread of the water outlet seat is locked in a limit position On the internal thread of the seat, the retaining edge of the water outlet seat is against the edge of the limit seat, the second and third limit chamfers are against the ball valve, and the step of the limit seat It is combined with the inner stepped hole of the ball valve seat.

本实用新型改进结构的球阀座体，各组成部件是先由锻造工艺完成胚件，可大大减少孔隙，其不合格率几乎为零，在其后续的加工工艺中也没有铸造工艺中大量出现的毛剌问题，方便各种车、钻等作业，提高成品率及生产效率，在各种管路的连接安装中可免于受渗漏之苦。The utility model improves the structure of the ball valve seat body, and each component part is completed by the forging process, which can greatly reduce the porosity, and the unqualified rate is almost zero, and there is no large amount of casting process in the subsequent processing process. The problem of burrs is convenient for various operations such as turning and drilling, improving the yield and production efficiency, and avoiding the suffering of leakage in the connection and installation of various pipelines.

下面结合实施例及附图进一步说明本实用新型的技术Further illustrate the technology of the present utility model below in conjunction with embodiment and accompanying drawing

图1是改进结构的球阀座体立体分解结构示意图Figure 1 is a schematic diagram of the three-dimensional exploded structure of the ball valve seat body with the improved structure

图2是图1中进水接头结构示意图Figure 2 is a schematic diagram of the structure of the water inlet joint in Figure 1

图3是图1中球阀座结构示意图Figure 3 is a schematic diagram of the structure of the ball valve seat in Figure 1

图4是图1中限位座结构示意图Figure 4 is a schematic diagram of the structure of the limit seat in Figure 1

图5是图1中出水座结构示意图Figure 5 is a schematic diagram of the structure of the water outlet seat in Figure 1

图6是改进结构的球阀座体立体组合结构示意图Figure 6 is a schematic diagram of the three-dimensional combined structure of the ball valve seat body with the improved structure

图7是改进结构的球阀座主体与球阀组合结构示意图Figure 7 is a schematic diagram of the combined structure of the ball valve seat body and the ball valve with an improved structure

参见图1至图5，其中由图2、图3所示的进水接头与球阀座组装构成球阀座体的进水部分，而由图4、图5所示的限位座、出水座则组装构成球阀座的出水部分。改进结构的球阀座体包括球阀6及球阀座主体10。球阀座主体10包括进水接头2、球阀座3、限位座4和出水座5。构成球阀座体10的每个部件均先经胚料锻造成型，再经工艺流程加工后组装而成。Referring to Figures 1 to 5, the water inlet joint shown in Figure 2 and Figure 3 is assembled with the ball valve seat to form the water inlet part of the ball valve seat body, while the limit seat and water outlet seat shown in Figure 4 and Figure 5 are Assemble the outlet part that forms the ball valve seat. The improved ball valve seat body includes a ball valve 6 and a ball valve seat main body 10 . The ball valve seat main body 10 includes a water inlet joint 2 , a ball valve seat 3 , a limit seat 4 and a water outlet seat 5 . Each component constituting the ball valve seat body 10 is first forged and formed from a blank, and then assembled after being processed by a technological process.

结合参见图2，进水接头2的管接头处设有外螺牙21，并于其后端设有挡缘22，于其进水孔23的内孔端设有第一限位倒角24。Referring to Fig. 2, the pipe joint of the water inlet joint 2 is provided with an external thread 21, and a retaining edge 22 is provided at its rear end, and a first limit chamfer 24 is provided at the end of the inner hole of the water inlet 23 .

结合参见图3，球阀座3的接口34处设有内螺牙31，与球阀6接合的装入口位置设有内阶梯孔32，该内阶梯孔32与球阀座3的球阀容纳室33连通。Referring to FIG. 3 , the interface 34 of the ball valve seat 3 is provided with an internal thread 31 , and an inner stepped hole 32 is provided at the loading port jointed with the ball valve 6 , and the inner stepped hole 32 communicates with the ball valve accommodation chamber 33 of the ball valve seat 3 .

结合参见图4，在限位座4的嵌入球阀容纳室33内的连通孔41的端口内设有第二限位倒角42，端口外设有台阶44，于连通孔41的另一端则设有内螺牙43。Referring to FIG. 4 , a second limit chamfer 42 is provided in the port of the communication hole 41 embedded in the ball valve accommodation chamber 33 of the limit seat 4 , a step 44 is provided outside the port, and a step 44 is provided at the other end of the communication hole 41 . Internal thread 43 is arranged.

结合参见图5，出水座5，于其出水孔连接口的端口内设有第三限位倒角51，其外径处车制有外螺牙52，外螺牙52的后端则设有挡缘53。Referring to Fig. 5 in combination, the water outlet seat 5 is provided with a third limit chamfer 51 in the port of the water outlet connection port, and an outer thread 52 is machined on its outer diameter, and the rear end of the outer thread 52 is provided with retaining edge 53 .

参见图6、图7，当球阀座3的内螺牙31套锁于进水接头2管接头的外螺牙21上时，球阀座3的接口34抵靠于进水接头2的挡缘22处定位，球阀6配合止水垫圈6P嵌入球阀容纳室33内，恰可吻靠于进水接头2的第一限位倒角24上并使球阀6定位，组装成球阀座体的进水部分。Referring to Fig. 6 and Fig. 7, when the inner thread 31 of the ball valve seat 3 is locked on the outer thread 21 of the pipe joint of the water inlet joint 2, the interface 34 of the ball valve seat 3 is against the retaining edge 22 of the water inlet joint 2 The ball valve 6 cooperates with the water-stop gasket 6P to be embedded in the ball valve accommodation chamber 33, which can just kiss against the first limit chamfer 24 of the water inlet joint 2 and position the ball valve 6, and assemble into the water inlet part of the ball valve seat body .

出水座5以其外螺牙52螺锁限位座4的内螺牙43并旋到底，直至挡缘53恰抵靠于限位座4的面缘处，组装成球阀座体的出水部分。将出水部分与已装配球阀6的进水部分相拼靠，限位座4的台阶44与球阀座3的内阶梯孔32相靠合，第三限位倒角51处所附装的止水垫圈6P也抵靠在球阀6上，在两者相拼靠后的搭接面外围缘上进行焊接，如图中W所示(或进行磨擦焊接)，使结合面无任何缝隙。The water outlet seat 5 is screwed to the inner thread 43 of the limit seat 4 with its outer thread 52 and screwed to the bottom until the retaining edge 53 just leans against the edge of the limit seat 4, and is assembled into the water outlet part of the ball valve seat body. Match the water outlet part with the water inlet part of the assembled ball valve 6, the step 44 of the limit seat 4 is close to the inner stepped hole 32 of the ball valve seat 3, and the water-stop gasket attached to the third limit chamfer 51 6P also leans against the ball valve 6, and welds on the outer edge of the overlapping surface after the two are joined together, as shown by W in the figure (or friction welding), so that there is no gap in the joint surface.

组装时，在各内、外螺牙的螺锁处也可先涂上固定剂，从而形成一个完整的球阀座主体10，其内部的各接触面通过平整的密合及螺锁的密合，可绝对防止渗漏。When assembling, a fixative can also be applied to the screw locks of the inner and outer threads, so as to form a complete ball valve seat body 10, and the internal contact surfaces can be flat and tightly sealed by the screw locks. Can absolutely prevent leakage.

Claims

1. A ball valve seat body with an improved structure, including a ball valve and a ball valve seat body, the ball valve seat body is composed of a water inlet part and a water outlet part that are joined together, and is characterized in that:

The water inlet part of the ball valve seat body is assembled by a water inlet joint and a ball valve seat, and the water outlet part of the ball valve seat body is assembled by a limit seat and a water outlet seat; one end of the water inlet joint is a through water inlet hole, The other end is the pipe joint end connected with the ball valve seat, the pipe joint end is provided with external thread, the water inlet joint at the rear end of the external thread is provided with a retaining edge, and the inner hole end of the pipe joint end is provided with a first stop Chamfering; the interface where one end of the ball valve seat is connected to the water inlet joint is provided with an internal thread that is locked with the outer thread of the water inlet joint, the ball valve seat is provided with a ball valve accommodation chamber, and the other end of the ball valve seat is a ball valve loading inlet. It is provided with an inner stepped hole and communicates with the ball valve accommodation chamber; the limit seat is provided with a second limit chamfer in the port of the communication hole embedded in the ball valve accommodation chamber, and a second limit chamfer is provided outside the port to cooperate with the inner stepped hole of the ball valve seat. The steps are provided with internal threads at the other end of the communication hole; the water outlet seat is provided with a through water outlet hole, and a third limit chamfer is provided in the port connected to the limit seat at one end of the water outlet hole, and the third limit chamfer is provided in the port outside the port The outer diameter of the water outlet seat is provided with an outer thread that locks with the inner thread of the limit seat, and the water outlet seat at the rear end of the outer thread is provided with a retaining edge; the inner thread sleeve of the ball valve seat is locked on the outer thread of the water inlet joint. On the teeth, the interface of the ball valve seat is positioned against the retaining edge of the water inlet joint, the ball valve is embedded in the ball valve accommodation chamber and kissed against the first chamfer of the water inlet joint to position the ball valve, and the outer screw thread lock of the water outlet seat On the internal thread of the limiting seat, the retaining edge of the water outlet seat abuts against the edge of the limiting seat, the second and third limiting chamfers abut against the ball valve, and the limiting The step of the seat is combined with the inner stepped hole of the ball valve seat.