A valve

Abstract

The utility model provides a kind of valve belongs to valve technical field.It solves the problem of existing split type valve assembly inconvenience.This valve, including valve body and valve seat, the bottom of valve body has the insertion part of being cylindrical, the top of valve seat has the sleeve part of being cylindrical, insertion part inserts into sleeve part, the side portion of sleeve part is opened with insertion hole along radial direction and the port of insertion hole both ends is located on the outer side surface of the opposite sides of sleeve part, the side portion corresponding with insertion hole position on insertion part is opened with the insertion slot of being annular, the valve still includes the insertion piece of being U-shaped, the end of insertion piece opening sequentially passes the port of insertion hole one end and insertion slot and from the port of insertion hole other end stretches out, the outside of insertion part is also opened with the sealing groove of being annular, sealing groove is located below the insertion slot, sealing ring of being circular ring is arranged in sealing groove, and the both sides of sealing ring are respectively with the sleeve part and insertion part abutment and form sealing.This valve has the advantage of convenient assembly.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, and relates to a valve, and more particularly to a split-type valve. Background Technology

[0002] A valve is a pipeline accessory used to open and close pipelines, control flow direction, and regulate and control the parameters of the conveyed medium. It typically includes a valve body and components such as a valve core and valve stem, all housed within the valve body. For ease of production and assembly, the valve body often adopts a split structure.

[0003] For example, a high-pressure needle valve with a split valve stem has been designed and a Chinese patent has been applied for, with application number 201921242916.2 and publication number CN210461732U. This high-pressure needle valve with a split valve stem includes a valve body, valve stem, valve core, packing nut, packing, valve seat, and handle. The valve seat is screwed and fixed to the lower end of the valve body, and has a medium inlet, a medium outlet, and a transition cavity for fitting the valve core. A valve stem hole for inserting the valve stem is provided inside the valve body. The packing is built into the valve stem hole and fills the outer wall of the valve stem. The packing is tightened by the packing nut. Correspondingly, a first internal thread is provided on the upper half of the inner wall of the valve stem hole, and a... A first external thread is adapted to the first internal thread; the valve core is located at the lowest end of the valve stem; a second internal thread is provided on the inner wall of the packing nut, and correspondingly, a second external thread adapted to the second internal thread is provided on the outer wall of the middle section of the valve stem, so that the position of the valve core relative to the transition cavity can be changed by rotating the valve stem, thereby realizing the opening / closing of the medium inlet and the medium outlet. The valve stem is configured as a split structure, which includes an upper valve stem and a lower valve stem; a T-shaped plug is provided on the top surface of the lower valve stem, and correspondingly, a T-shaped insertion slot adapted to the T-shaped plug is provided on the bottom surface of the upper valve stem; the T-shaped plug and the T-shaped insertion slot are clearance fit, so that the lower valve stem can rotate freely in the circumferential direction relative to the upper valve stem.

[0004] The valve seat is screwed and fixed to the lower end of the valve body, that is, the two are fixed by a threaded connection. In actual assembly, in order to ensure the sealing effect, it is necessary to wrap Teflon tape around the outside of the thread section. At the same time, it is necessary to carry a wrench for rotating the valve seat or valve body for auxiliary assembly, which makes the assembly process inconvenient. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a valve that solves the problem of inconvenient assembly of existing split valves.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A valve includes a valve body and a valve seat. The bottom of the valve body has a cylindrical insertion portion, and the top of the valve seat has a cylindrical sleeve portion. The insertion portion is inserted into the sleeve portion. The sleeve portion has a radially penetrating insertion hole on its side, with the ports at both ends of the insertion hole located on opposite outer surfaces of the sleeve portion. The insertion portion has an annular slot on its side corresponding to the insertion hole position. The valve also includes a U-shaped insertion member. One open end of the insertion member passes sequentially through the port at one end of the insertion hole and the slot, and extends out from the port at the other end of the insertion hole. An annular sealing groove is also provided on the outer side of the insertion portion, located below the slot. An annular sealing ring is disposed within the sealing groove, and both sides of the sealing ring abut against the sleeve portion and the insertion portion respectively to form a seal.

[0008] During assembly, the insert portion of the valve body equipped with a sealing ring is inserted into the sleeve portion of the valve seat. The sealing ring ensures a seal between the two. Then, a U-shaped insert is passed radially through the insertion hole and slot to axially position the insert portion and sleeve portion, thereby securing the valve body and valve seat. Because the sealing ring is positioned lower than the slot, the design of the insertion hole and slot does not affect the sealing effect of the sealing ring.

[0009] In the above assembly process of this valve, the valve body and valve seat can be fixed by only two steps of insertion, without the need to wrap Teflon tape or carry the corresponding assembly tools, making the assembly relatively convenient.

[0010] In one of the valves described above, the sleeve portion has a protruding annular limiting ring. When the lower end of the insertion portion abuts against the limiting ring, the positions of the insertion hole and the slot are opposite. By using the limiting ring to limit the insertion depth of the insertion portion within the sleeve portion, no additional alignment of the insertion hole and slot is required during assembly, making assembly more convenient.

[0011] In one type of valve described above, the horizontal width of the insertion hole is greater than the inner diameter of the sleeve portion, and the two side portions of the connector are embedded within the sleeve portion. Because the horizontal width of the insertion hole is greater than the inner diameter of the sleeve portion, the two side walls of the insertion hole are formed within the sleeve portion; that is, the inner wall portion of the sleeve portion is recessed to serve as part of the insertion hole. Thus, the two side portions of the connector extend into the recessed positions of the sleeve portion, allowing the connector to better and more stably fix the valve body and valve seat.

[0012] In one of the valves described above, the sleeve portion has a notch on the lower side wall of the insertion hole. The notch extends horizontally through the side of the sleeve portion, and the lowest point of the notch is higher than the highest point of the sealing groove. The notch facilitates the insertion of fingers or tools for easy removal of the connector.

[0013] Compared with existing technologies, the assembly process of this valve only requires two steps of insertion to fix the valve body and valve seat, without the need to wrap PTFE tape or carry corresponding assembly tools, making the assembly more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the valve's structure.

[0015] Figure 2 This is an exploded view of the valve.

[0016] Figure 3 This is a cross-sectional structural diagram of the valve.

[0017] Figure 4 This is a cross-sectional view of the valve from another perspective.

[0018] In the figure, 1 is the valve body; 11 is the insertion part; 12 is the slot; 13 is the sealing groove; 2 is the valve seat; 21 is the sleeve part; 22 is the insertion hole; 23 is the limit ring; 24 is the notch; 3 is the insertion piece; and 4 is the sealing ring. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 As shown, the valve includes a valve body 1 and a valve seat 2. The bottom of the valve body 1 has a downward protruding cylindrical insertion part 11, and the top of the valve seat 2 has an upward protruding cylindrical sleeve part 21. The insertion part 11 is inserted into the sleeve part 21.

[0021] like Figure 2-4As shown, a flat insertion hole 22 is radially opened through the side of the sleeve portion 21, and the ports at both ends of the insertion hole 22 are located on the outer surfaces of opposite sides of the sleeve portion 21. A circular slot 12 is opened on the side of the insertion portion 11 corresponding to the position of the insertion hole 22. The valve also includes a U-shaped insertion member 3, one end of which passes through the port at one end of the insertion hole 22 and the slot 12 in sequence, and extends out from the port at the other end of the insertion hole 22. The inner side of the insertion member 3 is engaged in the slot 12, and the outer side of the insertion member 3 is engaged in the insertion hole 22. A circular sealing groove 13 is also opened on the outer side of the insertion portion 11, located below the slot 12. A circular sealing ring 4 is provided in the sealing groove 13, and the two sides of the sealing ring 4 abut against the sleeve portion 21 and the insertion portion 11 respectively to form a seal. In this embodiment, the sleeve portion 21 has a protruding annular limiting ring 23. When the lower end of the insertion portion 11 abuts against the limiting ring 23, the insertion hole 22 and the slot 12 are directly opposite each other. The horizontal width of the insertion hole 22 is greater than the inner diameter of the sleeve portion 21, so that the side wall of the insertion hole 22 extends into the interior of the sleeve portion 21. The horizontal width of the insertion member 3 is also greater than the inner diameter of the sleeve portion 21, so that the two sides of the insertion member 3 are embedded in the two opposite sides of the sleeve portion 21. To facilitate the removal of the insertion member 3, the sleeve portion 21 has a notch 24 located on the lower side wall of the insertion hole 22. The notch 24 penetrates the side of the sleeve portion 21, and the lowest point of the notch 24 is higher than the highest point of the sealing groove 13. Here, there are two notches 24, located at the two ends of the insertion hole 22 respectively.

[0022] During assembly, the valve body 1 with a sealing ring 4 is inserted into the valve seat 2's fitting portion 21. The sealing ring 4 provides a seal between the two. Then, a U-shaped connector 3 is inserted radially through the insertion hole 22 and slot 12 to axially position the connector 11 and fitting portion 21, thus fixing the valve body 1 and valve seat 2. For removal, apply force with your finger at the opening of the connector 3 protruding from the insertion hole 22 to reverse its movement. Then, insert your finger through the notch 24 to directly contact the connector 3 and manipulate it to remove it from the insertion hole 22.

[0023] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A valve, comprising a valve body (1) and a valve seat (2), wherein the bottom of the valve body (1) has a cylindrical insertion portion (11), and the top of the valve seat (2) has a cylindrical sleeve portion (21), wherein the insertion portion (11) is inserted into the sleeve portion (21), characterized in that, The sleeve part (21) has a hole (22) that is radially opened on the side and the ports at both ends of the hole (22) are located on the outer side of the sleeve part (21) on opposite sides. The plug part (11) has an annular slot (12) on the side corresponding to the position of the hole (22). The valve also includes a U-shaped plug (3). One end of the opening of the plug (3) passes through the port at one end of the hole (22) and the slot (12) in sequence and extends out from the port at the other end of the hole (22). The plug part (11) also has an annular sealing groove (13) on the outside. The sealing groove (13) is located below the slot (12). An annular sealing ring (4) is provided in the sealing groove (13), and the two sides of the sealing ring (4) abut against the sleeve part (21) and the plug part (11) respectively to form a seal.

2. The valve according to claim 1, characterized in that, The sleeve part (21) has a protruding ring-shaped limiting ring (23). When the lower end of the plug part (11) abuts against the limiting ring (23), the positions of the plug hole (22) and the slot (12) are opposite.

3. A valve according to claim 1 or 2, characterized in that, The horizontal width of the insertion hole (22) is greater than the inner diameter of the sleeve part (21), and the two sides of the insertion member (3) are embedded in the sleeve part (21).

4. A valve according to claim 1 or 2, characterized in that, The sleeve (21) has a notch (24) on the lower side wall of the insertion hole (22), the notch (24) penetrates the side of the sleeve (21) in the horizontal direction and the lowest point of the notch (24) is higher than the highest point of the sealing groove (13).

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