Anti-freezing hard sealing ball valve
By installing antifreeze components in the hard-seal ball valve and using a heating device to prevent the medium from freezing, the problem of the ball valve not working properly in low-temperature environments is solved, thus enabling normal operation and extending the service life of the ball valve.
Patent Information
- Application Number
- CN202520053099.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-10
AI Technical Summary
When existing hard-seal ball valves are used in low-temperature environments, the liquid medium between the valve stem and the valve seat will freeze, causing the ball valve to fail to open and close properly, and may even lead to valve body rupture.
An antifreeze hard-seal ball valve was designed. By installing first and second antifreeze components on the outside of the ball valve body and valve seat, the medium is heated by a fan and a heating wire to prevent the liquid medium from freezing.
It effectively prevents liquid media from freezing in low-temperature environments, ensuring that the ball valve can open and close normally under low-temperature conditions, avoiding cracking, and extending the service life of the ball valve.
Smart Images
Figure CN223740200U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hard sealing ball valve technical field, concretely is a kind of anti-freezing hard sealing ball valve. BACKGROUND
[0002] Hard sealing ball valve, i.e. valve seat sealing surface and ball sealing surface material pairing is metal to metal ball valve, the structure form of ball valve is divided into floating ball type and fixed ball type, and the connection form is flange connection, welding connection and screw connection.
[0003] The existing hard sealing ball valve when being used in low-temperature environment, liquid medium between its valve stem and valve seat can freeze, so that the ball valve cannot be normally opened and closed, and the whole valve body can be cracked due to freezing, so that the ball valve cannot be used.
[0004] Therefore, an anti-freezing hard sealing ball valve is provided. UTILITY MODEL CONTENTS
[0005] The utility model discloses a kind of anti-freezing hard sealing ball valves to solve the problem raised in the above background, to achieve the above purpose, the utility model provides the following technical scheme: a kind of anti-freezing hard sealing ball valve, including base, the top of the base is fixed with ball valve main body, the top of the ball valve main body is equipped with valve seat, the inside of the valve seat is installed with valve stem, the top of the valve stem is fixed with hand wheel, the inside of the base is installed with double thread screw rod by bearing, the outside of the two ends of the double thread screw rod is respectively equipped with one threaded slide block by screw engagement, the top of two the threaded slide block is respectively fixed with one first anti-freezing component, one side of the base is installed with rocker, the top of two the first anti-freezing component is respectively equipped with one second anti-freezing component, two sides of the top of the base are respectively equipped with one sliding slot.
[0006] Preferably, two the first anti-freezing component two sides are respectively equipped with one clamping groove, and two first anti-freezing components are connected by sealing insert plate.
[0007] Preferably, two the first anti-freezing component is respectively installed with one air extractor and heating wire in, and two first anti-freezing components one side is respectively equipped with air inlet.
[0008] Preferably, the second anti-freezing component includes anti-freezing clamp plate, and the top view of anti-freezing clamp plate is semicircle.
[0009] Preferably, two the inside of anti-freezing clamp plate is respectively fixed with one partition ring, and two anti-freezing clamp plate one side is respectively equipped with exhaust port.
[0010] Preferably, two sides of the ball valve body are respectively provided with a first connecting seat and a second connecting seat, and the first connecting seat and the second connecting seat respectively extend out of the interior of the first anti-freezing assembly.
[0011] Compared with the prior art, the anti-freezing hard sealing ball valve has the following beneficial effects:
[0012] The first anti-freezing assembly can extract external air into the interior of the first anti-freezing assembly, then heat and deliver the air to the space between the two first anti-freezing assemblies and the two second anti-freezing assemblies, thereby heating the outer side of the ball valve body and the valve seat wrapped between the two first anti-freezing assemblies and the two second anti-freezing assemblies, heating the liquid medium in the interior, preventing the liquid medium from freezing, ensuring the ball valve to be normally opened and closed, avoiding the ball valve from being broken in a low-temperature environment, and improving the service life of the ball valve. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a side view structural schematic diagram of the utility model main part;
[0014] Figure 2 It is a front view structural schematic diagram of the utility model;
[0015] Figure 3 It is a top view structural schematic diagram of the first anti-freezing assembly of the utility model;
[0016] Figure 4 It is a front view structural schematic diagram of the utility model Figure 2 It is an enlarged structural schematic diagram of A in the utility model.
[0017] In the drawing: 1, base; 2, double thread screw rod; 3, threaded sliding block; 4, first anti-freezing assembly; 401, heating wire; 402, air extractor; 403, air inlet; 404, clamping groove; 5, first connecting seat; 6, ball valve body; 7, valve seat; 8, valve stem; 9, hand wheel; 10, second connecting seat; 11, rocker; 12, sliding groove; 13, second anti-freezing assembly; 1301, anti-freezing clamping plate; 1302, partition ring; 1303, exhaust port; 14, sealing plugboard. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0019] The top of the base 1 is fixed with the ball valve body 6, the top of the ball valve body 6 is provided with the valve seat 7, the inside of the valve seat 7 is installed with the valve rod 8, the top of the valve rod 8 is fixed with the hand wheel 9, the inside of the base 1 is installed with the double thread screw rod 2 through the bearing, the outer side of the two ends of the double thread screw rod 2 is respectively sleeved with a threaded sliding block 3 through the thread engagement, the top of the two threaded sliding blocks 3 is respectively fixed with a first anti-freezing assembly 4, one side of the base 1 is installed with the rocker 11, the top of the two first anti-freezing assemblies 4 is respectively provided with a second anti-freezing assembly 13, the two sides of the top of the base 1 is respectively provided with a sliding groove 12.
[0020] Specifically, as shown in Figure 1 、 Figure 2 and Figure 3 , when the ball valve is used in a low temperature environment, the two sides of the ball valve body 6 are connected with the pipeline, then the double thread screw rod 2 installed inside the base 1 is rotated by rotating the rocker 11, the rotation of the double thread screw rod 2 can drive the top of the two threaded sliding blocks 3 to slide along the direction in which the sliding groove 12 is opened, since the top of the threaded sliding block 3 is fixed with a first anti-freezing assembly 4, by controlling the relative sliding of the two threaded sliding blocks 3 along the installation direction of the double thread screw rod 2, the two first anti-freezing assemblies 4 can clamp the ball valve body 6 inside, since the top of the two first anti-freezing assemblies 4 is respectively provided with a second anti-freezing assembly 13, after the two first anti-freezing assemblies 4 clamp the ball valve body 6, the two second anti-freezing assemblies 13 can wrap the valve seat 7 provided on the top of the ball valve body 6, during use, the outside air can be extracted into the first anti-freezing assembly 4 by the first anti-freezing assembly 4, then heated and delivered between the two first anti-freezing assemblies 4 and the two second anti-freezing assemblies 13, so as to heat the outside of the ball valve body 6 and the valve seat 7 wrapped between the two first anti-freezing assemblies 4 and the two second anti-freezing assemblies 13, so as to heat the liquid medium inside, prevent the liquid medium from freezing, so as to ensure that the ball valve can be normally opened and closed, avoid the ball valve from being broken in a low temperature environment, and improve the service life of the ball valve.
[0021] The embodiment 2: two first anti-freezing assemblies 4 are respectively provided with a clamping groove 404 on two sides, and the two first anti-freezing assemblies 4 are connected through a sealing plug plate 14, the two first anti-freezing assemblies 4 are respectively provided with an air extractor 402 and a heating wire 401 inside, and the two first anti-freezing assemblies 4 are respectively provided with an air inlet 403 on one side, the second anti-freezing assembly 13 comprises an anti-freezing clamp plate 1301, and the anti-freezing clamp plate 1301 is in a semicircular shape in a top view, the two anti-freezing clamp plates 1301 are respectively fixed with a partition ring 1302 on the inner sides, and the two anti-freezing clamp plates 1301 are respectively provided with an air outlet 1303 on one side, the two sides of the ball valve body 6 are respectively provided with a first connecting seat 5 and a second connecting seat 10, and the first connecting seat 5 and the second connecting seat 10 respectively extend into the interior of the first anti-freezing assembly 4.
[0022] Specifically, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 When the two first anti-freezing assemblies 4 wrap the outer side of the ball valve body 6, the first connecting seat 5 and the second connecting seat 10 provided on the two sides of the ball valve body 6 will extend into the interior of the first anti-freezing assembly 4 through the clamping groove 404, so as to ensure that the two sides of the ball valve body 6 are normally connected with the pipeline, when the two first anti-freezing assemblies 4 are closed together, the sealing plug plate 14 fixed on one side of one first anti-freezing assembly 4 will be inserted into the interior of the other first anti-freezing assembly 4, so as to improve the sealing performance of the two first anti-freezing assemblies 4 after being closed, since the partition ring 1302 is installed on the inner side of the anti-freezing clamp plate 1301, when the two partition rings 1302 wrap the outer side of the valve seat 7, the anti-freezing clamp plate 1301 and the outer wall of the valve seat 7 can have a gap through the partition ring 1302, so as to ensure the flow of air, the rotation of the air extractor 402 can extract the external air into the interior of the first anti-freezing assembly 4 through the air inlet 403, and then the air is heated and delivered to the gap between the two first anti-freezing assemblies 4 and the ball valve body 6 through the heating wire 401, so as to heat the outer wall of the ball valve body 6 and the valve seat 7, and finally the air is discharged through the air outlet 1303.
[0023] Working principle: When using the ball valve in a low-temperature environment, connect the two sides of the ball valve body 6 to the pipeline. Then, rotate the rocker arm 11 to drive the double-threaded screw 2 installed inside the base 1 to rotate. The rotation of the double-threaded screw 2 can drive the tops of the two threaded sliders 3 to slide along the opening direction of the slide groove 12. Since a first antifreeze component 4 is fixed at the top of the threaded slider 3, by controlling the two threaded sliders 3 to slide relative to each other along the installation direction of the double-threaded screw 2, the two first antifreeze components 4 can be driven to clamp the ball valve body 6 inside. Since a second antifreeze component 13 is provided on the top of each of the two first antifreeze components 4, by controlling the two first antifreeze components 4 to move the ball valve body 6... After the valve body 6 is clamped, the two second antifreeze components 13 will wrap the valve seat 7 provided on the top of the ball valve body 6. Then, by controlling the rotation of the exhaust fan 402, the outside air can be drawn from the air inlet 403 into the interior of the first antifreeze component 4. After being heated by the heating wire 401, it is delivered to the gap between the two first antifreeze components 4 and the ball valve body 6, thereby heating the outer wall of the ball valve body 6 and the valve seat 7, thereby heating the liquid medium inside and preventing the liquid medium from freezing. This ensures that the ball valve can open and close normally, avoids the ball valve from cracking in the low temperature environment, and improves the service life of the ball valve. Finally, the gas will be discharged through the exhaust port 1303.
[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A freeze-proof hard-seal ball valve comprising a base (1), characterized in that: The top of the base (1) is fixed with a ball valve body (6), the top of the ball valve body (6) is provided with a valve seat (7), the inside of the valve seat (7) is mounted with a valve rod (8), the top of the valve rod (8) is fixed with a hand wheel (9), the inside of the base (1) is mounted with a double thread screw rod (2) through a bearing, the outside of the two ends of the double thread screw rod (2) is respectively sleeved with a threaded sliding block (3) through thread engagement, the top of the two threaded sliding blocks (3) is respectively fixed with a first anti-freezing assembly (4), one side of the base (1) is mounted with a rocker (11), the top of the two first anti-freezing assemblies (4) is respectively provided with a second anti-freezing assembly (13), the two sides of the top of the base (1) is respectively provided with a sliding groove (12).
2. A freeze-proof hard-seal ball valve according to claim 1, characterized in that: The two sides of the two first anti-freezing assemblies (4) are respectively provided with a clamping groove (404), and the two first anti-freezing assemblies (4) are connected through a sealing plug-in plate (14).
3. The freeze-proof hard-seal ball valve according to claim 1, characterized in that: The inside of the two first anti-freezing assemblies (4) is respectively mounted with an air extractor (402) and a heating wire (401), and one side of the two first anti-freezing assemblies (4) is respectively provided with an air inlet (403).
4. The freeze-proof hard-seated ball valve according to claim 1, wherein: The second anti-freezing assembly (13) comprises an anti-freezing clamping plate (1301), and the top view of the anti-freezing clamping plate (1301) is semicircular.
5. A freeze-proof hard-seated ball valve according to claim 4, characterized in that: The inside of the two anti-freezing clamping plates (1301) is respectively fixed with a partition ring (1302), and one side of the two anti-freezing clamping plates (1301) is respectively provided with an exhaust port (1303).
6. The freeze-proof hard-seated ball valve according to claim 1, wherein: The two sides of the ball valve body (6) are respectively provided with a first connecting seat (5) and a second connecting seat (10), and the first connecting seat (5) and the second connecting seat (10) respectively extend into the inside of the first anti-freezing assembly (4).