Anti-freezing ball valve

Abstract

The utility model relates to the technical field of ball valves, and discloses an anti-freezing ball valve which comprises a valve body internally provided with a valve element, a rod sleeve arranged at the upper end of the valve body, a valve rod with the lower end penetrating through the rod sleeve and then connected with the valve element, a handle arranged at the upper end of the valve rod, connecting ends arranged on the two sides of the valve body and flange plates arranged at the ends, away from the valve body, of the connecting ends. The electric tracing band is connected with an urban power grid and attached to the outer wall of the valve body, and the two connecting ends are each provided with a support used for achieving a supporting effect; the support comprises a C-shaped elastic sleeve clamped to the connecting end, connecting lugs arranged at the two ends of the elastic sleeve, open grooves formed in the connecting lugs, first bolts penetrating through the open grooves in the two connecting lugs and then connected through nuts, an L-shaped supporting plate arranged on the lower side of the elastic sleeve, and a long-strip-shaped groove formed in the lower side of the supporting plate. The side edge of the elastic sleeve is provided with a limiting groove, and the electric tracing band can penetrate through the limiting groove.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, and particularly relates to an anti-freezing ball valve. Background Art

[0002] A ball valve is a valve in which the closing and opening member (ball) is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids.

[0003] Currently, a Chinese patent with the publication number CN219366867U and the publication date of July 18, 2023 discloses an air-conditioning filter ball valve, which includes a valve body, a ball core, a valve stem and a handle. The handle is located on the side of the valve body and the axis of the handle is perpendicular to the plane where the axes of the filter chamber and the valve body are located. The handle has an extended section, the outer end of the valve stem extends out of the valve body and is fixedly connected to the extended section. A filter net in a cylindrical shape and communicating with the water inlet hole is arranged in the filter chamber. A valve cap is fixedly connected to the outer end of the filter chamber of the valve body. The upper end of the filter net abuts against the step on the inner wall of the water inlet hole, and the lower end of the filter net abuts against the step of the valve cap. The valve cap is connected with a sewage discharge structure.

[0004] This kind of air-conditioning filter ball valve uses the valve stem and the handle to drive the ball core in the valve body to rotate, so as to control the opening and closing of the ball valve. When the ball valve is in a relatively cold environment, the liquid in the ball valve will freeze, resulting in the ball valve being unable to open. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-freezing ball valve, which can play a role in heat preservation and anti-freezing for the valve body.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an anti-freezing ball valve includes a valve body with a valve core inside, a rod sleeve arranged at the upper end of the valve body, a valve stem passing through the rod sleeve at the lower end and connected to the valve core, a handle arranged at the upper end of the valve stem, connection ends arranged on both sides of the valve body, and flange plates arranged at the ends of the connection ends far away from the valve body. It further includes an electric heating tape connected to the urban power grid and attached to the outer wall of the valve body. Support seats are arranged on both connection ends. The support seat includes an elastic sleeve in a C shape and clamped on the connection end, connection ears arranged at both ends of the elastic sleeve, an opening groove opened on the connection ears, a first bolt passing through the opening grooves on the two connection ears and connected by a nut, a support plate in an L shape arranged under the elastic sleeve, a long strip groove opened on the lower side of the support plate, a second bolt arranged in the long strip groove, and a limiting groove for the electric heating tape to pass through arranged at the side of the elastic sleeve.

[0007] A further setting of the utility model is that: an enclosing part that bypasses the rod sleeve is integrally arranged on the electric heating tape.

[0008] A further setting of the present utility model is that: an outer side of the rod sleeve is provided with a crimping sleeve in a C shape and used for pressing the wrapping part against an outer wall of the rod sleeve.

[0009] A further setting of the present utility model is that: both ends of the crimping sleeve are integrally provided with guiding parts extending obliquely outwards.

[0010] To sum up, the present utility model has the following beneficial effects:

[0011] 1. When the valve body is installed, the elastic sleeve on the support is used to be clamped on the connection end. Among them, the first bolt passes through the opening slots on the two connection ears and is then connected through a nut. At this time, the elastic sleeve can be stably clamped on the connection end. At the same time, the support plate on the lower side of the elastic sleeve supports on the wall or the ground at the installation position of the valve body, and then the second bolt passes through the long slot and is connected to the wall or the ground at the installation position of the valve body, so as to realize the stable installation of the valve body; the limiting groove at the side position of the elastic sleeve can supply the electric heating tape to pass through. Among them, when the elastic sleeve is clamped on the connection end by the first bolt, the electric heating tape can be closely attached to the connection end. At this time, the support can be used to realize the close fit between the electric heating tape and the ball valve. When the electric heating tape is powered on, it can heat the ball valve, and finally it can play a role in heat preservation and anti-freezing for the valve body;

[0012] 2. By using the wrapping part integrally arranged on the electric heating tape, after the electric heating tape passes through the connection end on one side of the valve body, the wrapping part can be used to bypass the rod sleeve, and then pass through the connection end on the other side of the valve body. At this time, the effective contact length between the electric heating tape and the ball valve can be increased, so as to provide stable heat energy for each position of the ball valve, and finally it can efficiently play a role in heat preservation and anti-freezing for the valve body;

[0013] 3. When the wrapping part bypasses the rod sleeve position, then the crimping sleeve is clamped on the outer side of the rod sleeve. Through the crimping sleeve, the wrapping part can be pressed against the outer wall of the rod sleeve, and finally it is beneficial to the close fit of the wrapping part on the outer wall of the rod sleeve;

[0014] 4. By using the guiding parts integrally arranged at both ends of the crimping sleeve and extending obliquely outwards, the guiding parts can play a guiding role in the clamping of the crimping sleeve on the rod sleeve, and finally it is beneficial to the smooth clamping of the crimping sleeve on the outer side of the rod sleeve. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0016] Figure 1It is a schematic structural diagram of the utility model;

[0017] Figure 2 It is a schematic structural diagram of the utility model after removing the support and the pressing sleeve;

[0018] Figure 3 It is an enlarged structural diagram of the pressing sleeve in the utility model.

[0019] In the figure, 1 is the valve body; 11 is the rod sleeve; 12 is the valve rod; 121 is the handle; 13 is the connection end; 131 is the flange; 2 is the electric heating tape; 21 is the wrapping part; 3 is the support; 31 is the elastic sleeve; 311 is the limit groove; 32 is the connecting ear; 33 is the opening groove; 34 is the first bolt; 35 is the support plate; 36 is the long slot; 37 is the second bolt; 4 is the pressing sleeve; 41 is the guiding part. Specific embodiments

[0020] The technical solutions in the embodiments will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] An anti-freezing ball valve, referring to Figure 1 、 Figure 2 , this anti-freezing ball valve includes a valve body 1, a rod sleeve 11, a valve rod 12, a handle 121, a connection end 13, a flange 131 and an electric heating tape 2. The valve body 1 has a valve core (not shown in the figure) inside, and the rod sleeve 11 is integrally provided at the upper end of the valve body 1. At the same time, the lower end of the valve rod 12 passes through the rod sleeve 11 and is connected to the valve core, and the handle 121 is fixed at the upper end of the valve rod 12. The valve rod 12 can be driven to rotate by the handle 121. The connection end 13 is integrally provided on both sides of the valve body 1, and the flange 131 is integrally provided at the end of the connection end 13 away from the valve body 1.

[0022] Referring to Figure 1, supports 3 for support are provided on both connecting ends 13. The support 3 includes an elastic sleeve 31, a connecting ear 32, an opening groove 33, a first bolt 34, a support plate 35, a long strip groove 36, and a second bolt 37. The elastic sleeve 31 is C-shaped and clamped on the connecting end 13. The connecting ear 32 is integrally provided at both ends of the elastic sleeve 31. At the same time, the opening groove 33 is opened on the connecting ear 32. The first bolt 34 passes through the opening grooves 33 on the two connecting ears 32 and is connected by a nut. The support plate 35 is integrally provided on the lower side of the elastic sleeve 31 and is L-shaped. Both the support plate 35 and the elastic sleeve 31 are made of spring steel. At the same time, the long strip groove 36 is opened on the lower side of the support plate 35. The second bolt 37 is used to pass through the long strip groove 36 and then connect to the wall or floor at the installation position of the valve body 1.

[0023] Refer to Figure 1 , Figure 2 , Figure 3 , the electric tracing band 2 is connected to the urban power grid and is attached to the outer wall of the valve body 1. The electric tracing band 2 is composed of a conductive polymer, two parallel metal wires, and an insulating layer, and can generate heat after being energized. A limiting groove 311 for the electric tracing band 2 to pass through is integrally provided at the side of the elastic sleeve 31. An enclosing portion 21 that bypasses the rod sleeve 11 is also integrally provided on the electric tracing band 2. At the same time, a pressing sleeve 4 that is C-shaped and used to press the enclosing portion 21 against the outer wall of the rod sleeve 11 is provided outside the rod sleeve 11. The pressing sleeve 4 is made of an elastic plastic material. Guide portions 41 that extend obliquely outward are integrally provided at both ends of the pressing sleeve 4.

[0024] Principle: When the valve body 1 is installed, the elastic sleeve 31 on the support 3 is clamped on the connecting end 13. The first bolt 34 passes through the opening grooves 33 on the two connecting ears 32 and is connected by a nut. At this time, the elastic sleeve 31 can be stably clamped on the connecting end 13. At the same time, the support plate 35 under the elastic sleeve 31 supports on the wall or floor at the installation position of the valve body 1. Then, the second bolt 37 passes through the long strip groove 36 and is connected to the wall or floor at the installation position of the valve body 1, so as to realize the stable installation of the valve body 1. The limiting groove 311 at the side position of the elastic sleeve 31 can supply the electric tracing band 2 to pass through. When the elastic sleeve 31 is clamped on the connecting end 13 by the first bolt 34, the electric tracing band 2 can be closely attached to the connecting end 13. At this time, the electric tracing band 2 can be closely attached to the ball valve by using the support 3.

[0025] Meanwhile, by using the wrapping part 21 integrally provided on the electric tracing tape 2, after the electric tracing tape 2 passes through the connection end 13 on one side of the valve body 1, the wrapping part 21 can be used to bypass the rod sleeve 11, and then pass through the connection end 13 on the other side of the valve body 1. At this time, the effective contact length between the electric tracing tape 2 and the ball valve can be increased, so as to provide stable heat energy for each position of the ball valve; when the electric tracing tape 2 is powered on, it can heat the ball valve, and finally play a role in heat preservation and anti-freezing for the valve body 1.

Claims

1. An anti-freeze ball valve, comprising a valve body (1) with a valve core inside, a rod sleeve (11) arranged at the upper end of the valve body (1), a valve rod (12) passing through the rod sleeve (11) at the lower end and connected to the valve core, a handle (121) arranged at the upper end of the valve rod (12), connection ends (13) arranged on both sides of the valve body (1), and a flange (131) arranged at one end of the connection end (13) away from the valve body (1), characterized in that: It further includes an electric tracing band (2) connected to the urban power grid and attached to the outer wall of the valve body (1). Support seats (3) for support are provided on both of the two connection ends (13). The support seat (3) includes an elastic sleeve (31) in a C shape and clamped on the connection end (13), connection ears (32) provided at both ends of the elastic sleeve (31), an opening groove (33) opened on the connection ear (32), a first bolt (34) connected by a nut after passing through the opening grooves (33) on the two connection ears (32), a support plate (35) in an L shape and provided on the lower side of the elastic sleeve (31), a long strip groove (36) opened on the lower side of the support plate (35), and a second bolt (37) provided in the long strip groove (36). A limiting groove (311) for the electric tracing band (2) to pass through is provided at the side of the elastic sleeve (31).

2. The anti-freezing ball valve according to claim 1, characterized in that: An integral wrapping portion (21) that bypasses the rod sleeve (11) is provided on the electric tracing band (2).

3. An anti-freezing ball valve according to claim 1, characterized in that: A pressing sleeve (4) in a C shape and used to press the wrapping portion (21) against the outer wall of the rod sleeve (11) is provided on the outer side of the rod sleeve (11).

4. The antifreeze ball valve according to claim 3, characterized in that: Guide portions (41) extending obliquely outwards are integrally provided at both ends of the pressing sleeve (4).

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