Sealing valve seat of ball valve

Abstract

The utility model is suitable for the technical field, and provides a ball valve sealing valve seat which comprises a valve body and a valve seat arranged in the valve body. The sealing mechanism is arranged on the inner wall of the valve seat; the sealing mechanism comprises a retraction sleeve arranged in the valve seat, and a sealing sleeve arranged on the retraction sleeve, the supporting rod is arranged in the retraction sleeve; the supporting block is arranged in the supporting rod in a penetrating manner; the springback block is attached to one end of the supporting block; according to the sealing valve seat of the ball valve, when the sealing hole formed in one end of the valve element is connected with one end of the valve seat, the sealing hole extrudes the sealing block, meanwhile, when the sealing block is extruded, the spring in the retracting rod retracts and continues to stretch, the rebounding block is attached to the supporting block, the retracting rod can stretch conveniently, and therefore the sealing effect is achieved through the supporting force of the sealing block and the pressure of the sealing hole. Therefore, the sealing block is tightly attached to the sealing hole, and the sealing effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and in particular relates to a sealing valve seat of a ball valve. Background Art

[0002] The opening and closing parts of the ball valve are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid regulation and control. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction of the medium in the pipeline, but also close any channel and connect the other two channels. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method.

[0003] Authorization announcement number: CN218644896U, authorization date: 2023.03.17 "A ball valve", including a mounting body with a flow channel, a valve stem mounted on the mounting body, a ball connected to the valve stem and located in the mounting body, and an actuator connected to the valve stem, the flow channel has two ends, the two ends of the flow channel are respectively connected to a first butt joint pipe and a second butt joint pipe, the first butt joint pipe and the second butt joint pipe are both sealed and fixed to the mounting body, the first butt joint pipe is provided with a first butt joint structure, and the second butt joint pipe is provided with a second butt joint structure. The utility model has the following advantages and effects: the utility model can achieve precise installation and can select different butt joint methods according to different working conditions, so that it has better practicality.

[0004] However, the above-mentioned existing technical solutions still have the following defects. Some ball valve seats are usually sealed only by the contact between the sealing ring and the ball, so that when the pressure is high, a gap is easily formed at the contact between the sealing ring and the ball, which reduces the sealing effect of the ball valve and is inconvenient for people to use. Therefore, we propose a ball valve sealing seat to solve the above-mentioned problems. Utility Model Content

[0005] The utility model provides a sealing valve seat for a ball valve, aiming to solve the sealing problem of the valve seat of a glass ball valve.

[0006] The utility model is implemented as follows: a ball valve sealing seat comprises: a valve body and a valve seat: a valve seat opened inside the valve body; a sealing mechanism arranged on the inner wall of the valve seat; wherein the sealing mechanism comprises: a retraction sleeve arranged inside the valve seat; a support rod arranged inside the retraction sleeve; a support block passing through the support rod; and a rebound block fitted to one end of the support block.

[0007] Preferably, the sealing mechanism further comprises: a retraction rod connected to one end of the rebound block; a spring arranged between the support rod and the retraction rod; and a sealing block arranged at one end of the spring.

[0008] Preferably, it comprises: a valve body and a valve seat; a valve core provided inside the valve seat and penetrating therethrough; a flow hole provided at one end of the valve core; and a sealing hole provided at the other end of the valve core.

[0009] Preferably, the interior of the valve seat is arranged in a spherical shape, and sealing mechanisms are provided at the four corners of the valve seat.

[0010] Preferably, the support block and the rebound block are arranged in parallel, and the surface of the support block is arranged in an inverted "Z" shape, while the surface of the rebound block is arranged in a triangular shape.

[0011] Preferably, the sealing blocks are all symmetrically arranged with respect to the center axis of the valve seat, and the surfaces of the sealing blocks are distributed in an arc shape.

[0012] Preferably, the sealing holes are arranged in a convex distribution on the surface, and the outer diameter of the sealing holes matches the inner diameter of the sealing block.

[0013] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0014] The function of increasing the sealing of the ball valve seat body is achieved by setting a sealing mechanism. When the sealing hole set at one end of the valve core is connected to one end of the valve seat, the sealing hole is squeezed toward the sealing block. At the same time, when the sealing block is squeezed, the spring inside the retraction rod retracts and continues to extend, and the rebound block fits with the support block to facilitate the extension of the retraction rod, and then through the supporting force of the sealing block and the pressure of the sealing hole, the sealing block and the sealing hole are tightly fitted to achieve a sealing effect. The surface of the sealing block is distributed in an arc shape, and the sealing block is more tightly connected to the convex surface of the sealing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the valve seat structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the valve core structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the sealing mechanism structure of the utility model;

[0020] Figure 6 The utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1. valve body; 2. valve seat; 3. sealing mechanism; 301. retraction sleeve; 302. support rod; 303. support block; 304. rebound block; 305. retraction rod; 306. spring; 307. sealing block; 4. valve core; 5. flow hole; 6. sealing hole. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The utility model embodiment provides a ball valve sealing seat, such as Figure 1-6 As shown, it includes: a valve body 1 and a valve seat 2: the valve seat 2 is arranged inside the valve body 1; a sealing mechanism 3 is arranged on the inner wall of the valve seat 2; wherein the sealing mechanism 3 includes: a retractable sleeve 301 is arranged inside the valve seat 2; a support rod 302 is arranged inside the retractable sleeve 301; a support block 303 is arranged and passes through the support rod 302; and a rebound block 304 is arranged and attached to one end of the support block 303.

[0025] It should be noted that due to the single structure of the ball valve seat, the current ball valve seat has a poor sealing problem. Therefore, in order to solve the problem of poor sealing of the current ball valve seat, this solution provides a sealing mechanism 3 to increase the sealing function of the ball valve seat body.

[0026] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, it includes: a valve body 1 and a valve seat 2: the valve seat 2 is arranged inside the valve body 1; a sealing mechanism 3 is arranged on the inner wall of the valve seat 2; wherein the sealing mechanism 3 includes: a retractable sleeve 301 is arranged inside the valve seat 2; a support rod 302 is arranged inside the retractable sleeve 301; a support block 303 is arranged and passes through the support rod 302; and a rebound block 304 is arranged and attached to one end of the support block 303.

[0027] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the sealing mechanism 3 also includes: a retracting rod 305 connected to one end of the rebound block 304; a spring 306 arranged between the support rod 302 and the retracting rod 305; and a sealing block 307 arranged at one end of the spring 306.

[0028] In this embodiment, when the sealing hole 6 provided at one end of the valve core 4 is connected to one end of the valve seat 2, the sealing hole 6 is squeezed toward the sealing block 307. At the same time, when the sealing block 307 is squeezed, the spring 306 inside the retraction rod 305 retracts and continues to extend, and the rebound block 304 fits with the support block 303, which is convenient for the retraction rod 305 to extend, and then through the supporting force of the sealing block 307 and the pressure of the sealing hole 6, the sealing block 307 is tightly fitted with the sealing hole 6 to achieve a sealing effect.

[0029] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, it comprises: a valve body 1 and a valve seat 2; a valve core 4 penetrating the inside of the valve seat 2; a flow hole 5 at one end of the valve core 4; and a sealing hole 6 at the other end of the valve core 4.

[0030] In a further preferred embodiment of the present invention, Figure 1 and Figure 2 As shown, the interior of the valve seat 2 is arranged in a spherical shape, and sealing mechanisms 3 are arranged at the four corners of the valve seat 2.

[0031] In a further preferred embodiment of the present invention, Figure 5 As shown, the support block 303 and the rebound block 304 are arranged in parallel with each other, and the surface of the support block 303 is arranged in an inverted "Z" shape, while the surface of the rebound block 304 is arranged in a triangular shape.

[0032] In a further preferred embodiment of the present invention, Figure 2 , Figure 3 and Figure 6 As shown, the sealing blocks 307 are symmetrically arranged with respect to the central axis of the valve seat 2, and the surfaces of the sealing blocks 307 are distributed in an arc shape.

[0033] In this embodiment, the surface of the sealing block 307 is distributed in an arc shape, and the sealing block 307 is more tightly connected to the convex surface of the sealing hole 6.

[0034] In a further preferred embodiment of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, the surface of the sealing hole 6 is arranged in a convex shape, and the outer diameter of the sealing hole 6 matches the inner diameter of the sealing block 307 .

[0035] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0036] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0037] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0038] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A ball valve sealing seat, characterized in that: include: A valve body (1) and a valve seat (2); A valve seat (2) provided inside the valve body (1); A sealing mechanism (3) arranged on the inner wall of the valve seat (2); Wherein, the sealing mechanism (3) comprises: A retractable sleeve (301) disposed inside the valve seat (2); A support rod (302) disposed inside the retractable sleeve (301); a support block (303) provided inside and penetrating the support rod (302); and A rebound block (304) is arranged on one end of the support block (303) and is in close contact with the support block (303).

2. A ball valve sealing seat as claimed in claim 1, characterized in that: The sealing mechanism (3) further comprises: A retracting rod (305) connected to one end of the rebound block (304); a spring (306) disposed between the support rod (302) and the retracting rod (305); and A sealing block (307) is provided at one end of the spring (306).

3. A ball valve sealing seat as claimed in claim 2, characterized in that: include: A valve core (4) is arranged inside the valve seat (2) and penetrates through the valve seat; A flow hole (5) provided at one end of the valve core (4); A sealing hole (6) is provided at the other end of the valve core (4).

4. A ball valve sealing seat as claimed in claim 1, characterized in that: The interior of the valve seat (2) is arranged in a spherical shape, and sealing mechanisms (3) are arranged at the four corners of the valve seat (2).

5. A ball valve sealing seat as claimed in claim 1 or 2, characterized in that: The support block (303) and the rebound block (304) are arranged in parallel with each other, and the surface of the support block (303) is arranged in an inverted "Z" shape, while the surface of the rebound block (304) is arranged in a triangular shape.

6. A ball valve sealing seat as claimed in claim 2, characterized in that: The sealing blocks (307) are all arranged symmetrically with respect to the central axis of the valve seat (2), and the surfaces of the sealing blocks (307) are arranged in an arc shape.

7. A ball valve sealing seat as claimed in claim 3, characterized in that: The surfaces of the sealing holes (6) are arranged in a convex distribution, and the outer diameter of the sealing holes (6) matches the inner diameter of the sealing block (307).

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