Valve element for medium sealing and valve assembly

Abstract

The utility model relates to the field of industrial valves, in particular to a valve core for medium sealing, which comprises a valve core body, the valve core body comprises a control part and a connecting part, the control part is fixedly connected with the connecting part, the connecting part is provided with a sealing ring groove and a blind hole, the side wall of the blind hole is also symmetrically provided with two notches, and the two notches are communicated with the control part. Two glue storage structures are further arranged on the outer side wall of the connecting part, each glue storage structure comprises a glue storage groove, a glue inlet and at least one glue overflowing groove, and the glue inlets and the glue overflowing grooves are both communicated with the glue storage grooves. Through the arrangement of the rubber storage tank, the rubber inlet and the rubber overflow tank, when the rubber overflow tank is full and the pressure of rubber liquid is overlarge, the rubber liquid can be discharged through the rubber overflow tank and the rubber discharge channel which is communicated with the rubber overflow tank and arranged on the outer mold, so that the pressure is reduced, flashes formed by overflowing rubber are avoided, the subsequent processing steps are reduced, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial valves, and in particular to a valve core and valve assembly for media sealing. Background Technology

[0002] Currently, the core sealing components of on / off valves are generally manufactured using a one-piece molding process, allowing the rubber parts to be directly molded onto the valve core pre-placed in the mold, resulting in good integrity. However, due to the high pressure during liquid rubber injection, it is squeezed out from the gap between the valve core and the mold, causing significant overflow of rubber from the main body, leading to a large amount of flash. This flash is difficult to remove, increasing manufacturing costs. Furthermore, the existing inlet ports for rubber in the valve core are generally located on the bottom or side of the valve core, making sealing more difficult.

[0003] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a valve core and valve assembly for media sealing. This utility model is achieved through the following technical solution:

[0005] A valve core for media sealing includes a valve core body, the valve core body including a control part and a connecting part, the control part being fixedly connected to the connecting part, the connecting part being provided with a sealing ring groove and a blind hole, the side wall of the blind hole being symmetrically provided with two notches, the outer side wall of the connecting part being provided with two glue storage structures, the glue storage structure including a glue storage tank, a glue inlet and at least one glue overflow tank, the glue inlet and the glue overflow tank being connected to the glue storage tank.

[0006] In the above technical solution: the valve core body is used to cooperate with the valve shell and other components to form a valve to realize the basic function of the valve; the connecting part is used to install with the other components of the valve; the control part is used to control the rotation of the connecting part to realize the switching of the valve state; the sealing ring groove is used to set the sealing ring to improve the sealing performance; the blind hole is used to connect the two notches; the two notches can change positions to realize the opening or closing of the valve; the rubber storage structure is used as part of the mold when the rubber is integrally molded; the rubber storage tank is one of the main rubber structures in the mold; the rubber inlet is used as the flow channel of the mold; the overflow tank is used to provide a discharge port when the pressure exceeds the limit value after the rubber is full.

[0007] A further feature of this invention is that the glue storage structure includes two adhesive barrier grooves, which are respectively disposed on both sides of the glue storage groove, and the adhesive barrier grooves are not connected to the glue storage groove.

[0008] In the above technical solution: the adhesive barrier groove is used to prevent the primer in the pre-injected storage tank from being squeezed out by the subsequently injected rubber and spread to the outer surface of the joint.

[0009] A further feature of this invention is that the adhesive barrier groove is arc-shaped.

[0010] In the above technical solution, the adhesive barrier groove is arc-shaped, which can better block the extruded base adhesive.

[0011] A further feature of this invention is that an injection hole is provided through the bottom surface of the glue inlet, and the injection hole connects the blind hole and the glue inlet.

[0012] In the above technical solution: the injection hole is set on the bottom surface of the inlet, so that liquid rubber is injected from the inside of the valve core body into the storage structure, thereby facilitating sealing.

[0013] A valve assembly includes a valve core for media sealing, a sealing ring, and a rubber block. The sealing ring is disposed within the sealing ring groove, and the rubber block includes a rubber body that is bonded to a rubber storage tank. A sealing boss is provided on the side of the rubber body away from the rubber storage tank.

[0014] In the above technical solution: the rubber block is used to improve the sealing performance and provide damping.

[0015] A further feature of this invention is that the sealing boss is annular.

[0016] In the above technical solution, the sealing boss is annular, with a groove in its middle, which makes the deformation of the sealing boss smooth.

[0017] A further feature of this invention is that the rubber block includes an inlet residue block and an overflow residue block, the inlet residue block and the overflow residue block being fixedly disposed on both sides of the rubber block, the inlet residue block being disposed inside the inlet, and the overflow residue block being disposed inside the overflow groove.

[0018] In the above technical solution: the glue inlet residue block and the glue overflow residue block are integrally formed to correspond to the glue inlet and the glue overflow groove. When the valve core body rotates, the glue inlet residue block and the glue overflow residue block can restrict the rubber body of the rubber block from being subjected to friction and thus generating a tendency to rotate in the glue storage groove.

[0019] This utility model discloses a valve core and valve assembly for media sealing, which, compared with the prior art:

[0020] 1. This utility model, by setting up a rubber storage tank, a rubber inlet and an overflow tank, allows the rubber liquid to be discharged through the overflow tank and the discharge channel set on the outer mold when the rubber liquid pressure is too high after the overflow tank is full, thereby reducing the pressure, avoiding the flash formed by the overflowing rubber, reducing subsequent processing steps and improving product quality.

[0021] 2. This utility model also provides an arc-shaped adhesive barrier groove, which prevents the overflowing bottom corner from being blocked by the adhesive barrier groove and retained therein, thus avoiding the adhesion between the valve core body and the outer mold caused by the overflow of the bottom adhesive, which would lead to separation difficulties.

[0022] 3. This utility model also improves the bonding between the rubber block and the rubber storage structure by setting the rubber inlet residue block and the overflow residue block, making the rubber block less prone to self-rotation, thus making the two firmly fixed and not easy to separate. Attached Figure Description

[0023] Figure 1 This is a perspective view of the valve assembly of this utility model;

[0024] Figure 2 This is a perspective view of the valve core body of this utility model;

[0025] Figure 3 This is a perspective view of the rubber block of this utility model.

[0026] The numbers and letters in the diagram represent the following component names: 10-valve core body; 101-control section; 102-connection section; 103-sealing ring groove; 104-blind hole; 105-notch; 20-resin storage structure; 201-resin storage tank; 202-resin inlet; 202a-injection hole; 203-overflow groove; 204-adhesive barrier groove; 30-sealing ring; 40-rubber block; 401-rubber body; 402-sealing boss; 403-resin residue block; 404-overflow residue block. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0028] like Figure 1-3As shown, the present invention proposes a valve core for media sealing, comprising a valve core body 10, wherein the valve core body 10 includes a control part 101 and a connecting part 102, the control part 101 being fixedly connected to the connecting part 102, the connecting part 102 being provided with a sealing ring groove 103 and a blind hole 104, and two notches 105 being symmetrically provided on the side wall of the blind hole 104, and two glue storage structures 20 being provided on the outer side wall of the connecting part 102, the glue storage structure 20 including a glue storage tank 201, a glue inlet 202 and at least one glue overflow tank 203, the glue inlet 202 and the glue overflow tank 203 being connected to the glue storage tank 201. The control unit 101 is also provided with other structures for assembly with the valve housing; the position of the overflow groove 203 should be as far away from the position of the glue inlet 202 as possible; during glue injection, the valve core body 10 is assembled with the outer mold, and the outer mold is provided with glue discharge channels, the number and position of which correspond to the overflow groove 203.

[0029] like Figure 1-3 As shown, the present invention proposes a valve core for medium sealing. The glue storage structure 20 further includes two adhesive barrier grooves 204. The two adhesive barrier grooves 204 are respectively disposed on both sides of the glue storage tank 201, and the adhesive barrier grooves 204 are not connected to the glue storage tank 201.

[0030] like Figure 1-3 As shown, this utility model proposes a valve core for media sealing, wherein the adhesive barrier groove 204 is arc-shaped. The adhesive storage tank 201 is circular, and the adhesive barrier groove 204 and the adhesive storage tank 201 are coaxially arranged.

[0031] like Figure 1-3 As shown, the present invention proposes a valve core for medium sealing, wherein a glue injection hole 202a is provided through the bottom surface of the glue inlet 202, and the glue injection hole 202a connects the blind hole 104 and the glue inlet 202.

[0032] like Figure 1-3 As shown, the present invention proposes a valve assembly including a valve core for media sealing, a sealing ring 30, and a rubber block 40. The sealing ring 30 is disposed within the sealing ring groove 103. The rubber block 40 includes a rubber body 401, which is bonded to a rubber storage tank 201. A sealing boss 402 is provided on the side of the rubber body 401 away from the rubber storage tank 201. The thickness of the rubber body 401 is the same as the depth of the rubber storage tank 201.

[0033] like Figure 1-3 As shown, the valve assembly proposed in this utility model has a ring-shaped sealing boss 402.

[0034] like Figure 1-3 As shown, this utility model proposes a valve assembly in which the rubber block 40 further includes an inlet residue block 403 and an overflow residue block 404. The inlet residue block 403 and the overflow residue block 404 are respectively fixedly disposed on both sides of the rubber block 40, with the inlet residue block 403 disposed within the inlet 202 and the overflow residue block 404 disposed within the overflow groove 203. The inlet residue block 403, the overflow residue block 404, and the rubber body 401 are manufactured using an integral molding process. The thickness of the inlet residue block 403 is consistent with the depth of the inlet 202; the thickness of the overflow residue block 404 is consistent with the depth of the overflow groove 203.

[0035] The working principle of this utility model is as follows:

[0036] a) When performing integrated manufacturing;

[0037] b) First, apply a primer to the adhesive storage tank;

[0038] c) Assemble the valve body with the outer mold;

[0039] d) Then inject liquid rubber into the rubber storage structure through the injection hole;

[0040] e) After the rubber storage tank is filled with rubber, the excess rubber first enters the overflow tank and then is discharged through the discharge channel;

[0041] f) If some of the base adhesive is squeezed out by the liquid rubber, it will enter the adhesive barrier groove to prevent it from spreading to other places; g) After the liquid rubber has cured, remove the outer mold. At this time, the rubber block has been firmly connected to the valve core body as one piece.

[0042] h) Assemble the valve core with the rubber block with the rest of the valve to manufacture the valve.

[0043] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A valve core for media sealing, comprising a valve core body (10), the valve core body (10) comprising a control part (101) and a connecting part (102), the control part (101) being fixedly connected to the connecting part (102), the connecting part (102) being provided with a sealing ring groove (103) and a blind hole (104), the blind hole (104) being further provided with two symmetrical notches (105) on its sidewall, characterized in that: Two glue storage structures (20) are also provided on the outer side wall of the connecting part (102). The glue storage structure (20) includes a glue storage tank (201), a glue inlet (202) and at least one glue overflow tank (203). The glue inlet (202) and the glue overflow tank (203) are both connected to the glue storage tank (201).

2. The valve core for medium sealing according to claim 1, characterized in that: The adhesive storage structure (20) further includes two adhesive barrier grooves (204), which are respectively disposed on both sides of the adhesive storage tank (201), and the adhesive barrier grooves (204) are not connected to the adhesive storage tank (201).

3. A valve core for medium sealing according to claim 2, characterized in that: The adhesive barrier groove (204) is arc-shaped.

4. A valve core for medium sealing according to claim 3, characterized in that: A glue injection hole (202a) is provided through the bottom surface of the glue inlet (202), and the glue injection hole (202a) connects the blind hole (104) and the glue inlet (202).

5. A valve assembly, characterized in that, The valve core for media sealing includes any one of claims 1 to 4, and further includes a sealing ring (30) and a rubber block (40). The sealing ring (30) is disposed in the sealing ring groove (103). The rubber block (40) includes a rubber body (401), which is bonded to the rubber storage tank (201). A sealing boss (402) is provided on the side of the rubber body (401) away from the rubber storage tank (201).

6. A valve assembly according to claim 5, characterized in that: The sealing boss (402) is annular.

7. A valve assembly according to claim 5, characterized in that: The rubber block (40) also includes an inlet residue block (403) and an overflow residue block (404). The inlet residue block (403) and the overflow residue block (404) are respectively fixedly disposed on both sides of the rubber block (40), and the inlet residue block (403) is disposed in the inlet (202), and the overflow residue block (404) is disposed in the overflow groove (203).

Images