Three-way corrugated pipe ball valve

Abstract

The utility model relates to the field of three-way valves, and discloses a three-way corrugated pipe ball valve which comprises a shell, and three pipelines are formed on the shell. The valve element is installed in the shell, a channel is formed in the valve element, and the diameter of the channel is smaller than the distance between every two adjacent pipelines; the valve rod is connected with the valve element and used for rotating the valve element, and a corrugated pipe is installed on the valve rod; and the positioning mechanism is connected with the valve rod and is used for rotating the valve rod to a specified position. According to the utility model, under the auxiliary action of the positioning mechanism, the valve rod can be rotated to a specified position, so that a liquid inlet pipeline is communicated with one of the liquid outlet pipelines through the channel, or the channel is staggered from all the pipelines to realize plugging, and the problem that the position of the valve core is inconvenient to adjust quickly and accurately is solved.

Description

Technical Field

[0001] The utility model relates to the field of three-way valves, in particular to a three-way bellows ball valve. Background Art

[0002] A three-way valve refers to a valve device with three ports, one inlet and two outlets. Chinese patent CN202222765000.3 discloses a three-way valve, including a valve body, a valve seat, a ball and a valve stem. A hollow spherical inner cavity is formed in the middle of the valve body. Three medium channels are evenly spaced on the valve body outside the spherical inner cavity. The three medium channels are all connected to the inner cavity, and valve seats are installed at the connection position between the medium channel and the inner cavity. A ball is installed in the spherical inner cavity. The ball is a hemispherical structure with a fan-shaped cross section. The convex end face of the spherical surface is connected to the valve seat to cut off the corresponding medium channel. The valve structure combines the principle of the three-way structure and the effective structural installation space. It can effectively solve the pipeline environment with limited installation space and diversion needs. It is flexible in switching and reversing adjustment and quick to operate.

[0003] The existing three-way valve has the following problems: it is not convenient to adjust the valve core position quickly and accurately.

[0004] Based on the above situation, a three-way bellows ball valve is urgently needed to solve the problem that it is inconvenient to quickly and accurately adjust the valve core position. Utility Model Content

[0005] The utility model aims to solve the problem that the existing three-way valve cuts off the corresponding medium channel by connecting the spherical raised end face to the valve seat, but it is not convenient to quickly and accurately adjust the valve core position.

[0006] The technical solution of the utility model is as follows:

[0007] A three-way bellows ball valve, comprising:

[0008] A shell having three pipes formed thereon;

[0009] A valve core is installed in the housing, a channel is formed in the valve core, and the diameter of the channel is smaller than the distance between two adjacent pipes;

[0010] A valve stem connected to the valve core and used to rotate the valve core, wherein a bellows is installed on the valve stem;

[0011] The positioning mechanism is connected to the valve stem and is used to rotate the valve stem to a specified position.

[0012] The existing three-way valve cuts off the corresponding medium channel by connecting the spherical raised end face to the valve seat, but it is not convenient to quickly and accurately adjust the valve core position. In this solution, through the auxiliary effect of the positioning mechanism, the valve stem can be rotated to a specified position, so that the channel connects the liquid inlet pipe with one of the liquid outlet pipes, or the channel is staggered with all pipes to achieve blocking, thereby solving the problem of inconvenience in quickly and accurately adjusting the valve core position.

[0013] Furthermore, the present solution does not limit the specific structure of the positioning mechanism. One feasible solution is: the positioning mechanism includes a fixed end detachably mounted on the shell, the fixed end is rotatably connected to a rotating part, and the valve stem is arranged on the rotating part. When this solution is adopted, the valve stem is driven by the rotating part to rotate along the axis of the valve stem throughout a circle, thereby improving the flexibility of the valve stem.

[0014] Furthermore, in order to adjust the channel to be coaxial with the specified pipeline or offset with all pipelines, one feasible solution is: a limit rod is installed on the rotating part, and a plurality of limit grooves cooperating with the limit rod are formed on the fixed end. When this solution is adopted, the valve core can be quickly rotated to the specified position through the cooperation of the limit rod and the specified limit groove, thereby adjusting the channel to be coaxial with the specified pipeline or offset with all pipelines.

[0015] Furthermore, in order to facilitate the insertion of the limit rod into the limit groove, one feasible solution is: the limit rod is connected to a spring. When this solution is adopted, when the valve stem rotates to near the specified position, as the valve stem continues to rotate, the limit rod is pushed into the limit groove by the spring, so that the valve stem can be rotated to the specified position faster.

[0016] Furthermore, in order to avoid the misalignment of the limit rod and the limit slot, one feasible solution is: a guide rail cooperating with the limit rod is formed on the fixed end. When this solution is adopted, the guide rail can prevent the limit rod and the limit slot from being misaligned.

[0017] Furthermore, the present solution does not limit the retraction method of the limit rod. One feasible solution is: the rotating part is hinged with a movable rod, a U-shaped groove is formed on the movable rod, and a step matching the U-shaped groove is formed on the limit rod. When this solution is adopted, the movable rod is pressed to form a lever, and then the limit rod is lifted to realize the retraction of the limit rod.

[0018] Compared with the existing technology, the beneficial effects of the utility model are:

[0019] 1. Through the auxiliary effect of the positioning mechanism, the valve stem can be rotated to a specified position, so that the channel connects the liquid inlet pipe with one of the liquid outlet pipes, or the channel is staggered with all pipes to achieve blocking, which solves the problem of inconvenience in quickly and accurately adjusting the valve core position;

[0020] Second, since the positioning mechanism includes a fixed end detachably mounted on the housing, the fixed end is rotatably connected to a rotating portion, the valve stem is arranged on the rotating portion, and the valve stem is driven by the rotating portion to rotate along the axis of the valve stem throughout a circle, thereby improving the flexibility of the valve stem;

[0021] 3. Since a limiting rod is installed on the rotating part, a plurality of limiting grooves cooperating with the limiting rod are formed on the fixed end. By cooperating between the limiting rod and the specified limiting groove, the valve core can be quickly rotated to a specified position, thereby adjusting the channel to be coaxial with the specified pipeline or staggered with all pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 It is an overall cross-sectional view of an embodiment of the utility model;

[0024] Figure 3 This is a cross-sectional view of the positioning mechanism of an embodiment of the utility model;

[0025] Figure 4 for Figure 3 A in the enlarged view;

[0026] Figure 5 This is a schematic diagram of the fixed end structure of an embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the movable rod in an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. Housing; 2. Valve core; 3. Valve stem; 4. Positioning mechanism;

[0030] 11. Pipeline;

[0031] 21. Channel;

[0032] 31. Bellows;

[0033] 41. fixed end; 42. rotating part; 43. limiting rod; 44. limiting groove; 45. guide rail;

[0034] 421, movable rod; 422, U-shaped groove; 423, handle;

[0035] 431. Spring; 432. Step. DETAILED DESCRIPTION

[0036] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0037] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0038] Example:

[0039] Please refer to Figure 1 , Figure 2 and Figure 3 , a three-way bellows ball valve, comprising:

[0040] A shell 1, on which three pipes 11 are formed;

[0041] The valve core 2 is installed in the housing 1. A channel 21 is formed in the valve core 2. The diameter of the channel 21 is smaller than the distance between two adjacent pipes 11.

[0042] A valve stem 3 connected to the valve core 2 and used to rotate the valve core 2, and a bellows 31 is installed on the valve stem 3;

[0043] The positioning mechanism 4 is connected to the valve stem 3 and is used to rotate the valve stem 3 to a specified position.

[0044] The existing three-way valve cuts off the corresponding medium channel by connecting the spherical raised end face to the valve seat, but it is not convenient to quickly and accurately adjust the valve core position. In this solution, through the auxiliary effect of the positioning mechanism 4, the valve stem 3 can be rotated to the specified position, so that the channel 21 connects the liquid inlet pipe 11 with one of the liquid outlet pipes 11, or the channel 21 is staggered with all the pipes 11 to achieve blocking, which solves the problem of inconvenience in quickly and accurately adjusting the valve core position.

[0045] Reference Figure 3This solution does not limit the specific structure of the positioning mechanism 4. One feasible solution is: the positioning mechanism 4 includes a fixed end 41 detachably mounted on the shell 1, the fixed end 41 is rotatably connected to a rotating part 42, and the valve stem 3 is arranged on the rotating part 42. When this solution is adopted, the valve stem 3 is driven by the rotating part 42 to rotate along the axis of the valve stem 3 throughout a circle, thereby improving the flexibility of the valve stem 3.

[0046] Reference Figure 4 and Figure 5 In order to adjust the channel 21 to be coaxial with the designated pipeline 11 or staggered with all pipelines 11, one feasible solution is: a limit rod 43 is installed on the rotating part 42, and a plurality of limit grooves 44 cooperating with the limit rod 43 are formed on the fixed end 41. When this solution is adopted, the valve core 2 can be quickly rotated to the designated position through the cooperation between the limit rod 43 and the designated limit groove 44, thereby adjusting the channel 21 to be coaxial with the designated pipeline 11 or staggered with all pipelines 11.

[0047] In order to facilitate the insertion of the limit rod 43 into the limit groove 44, one feasible solution is: the limit rod 43 is connected to the spring 431. When this solution is adopted, when the valve stem 3 rotates to near the specified position, as the valve stem 3 continues to rotate, the limit rod 43 is pushed into the limit groove 44 by the spring 431, so that the valve stem 3 can be rotated to the specified position faster.

[0048] In order to avoid misalignment between the limit rod 43 and the limit groove 44, one feasible solution is: a guide rail 45 cooperating with the limit rod 43 is formed on the fixed end 41. When this solution is adopted, the limit rod 43 and the limit groove 44 can be prevented from being misaligned through the guiding effect of the guide rail 45.

[0049] Reference Figure 3 , Figure 4 and Figure 6 This solution does not limit the return method of the limit rod 43. One feasible solution is: the rotating part 42 is hinged with a movable rod 421, and a U-shaped groove 422 is formed on the movable rod 421. A step 432 that cooperates with the U-shaped groove 422 is formed on the limit rod 43. When this solution is adopted, the movable rod 421 is pressed to form a lever, and then the limit rod 43 is lifted up to realize the return of the limit rod 43.

[0050] Preferably, a handle 423 corresponding to the position of the movable rod 421 is formed on the rotating portion 42 , and the valve stem 3 can be rotated conveniently and quickly by operating the handle 423 .

[0051] The working principle of this embodiment:

[0052] When adjusting the valve stem 3, press the movable rod 421 and apply a force to the step 432 through the U-shaped groove 422 to overcome the elastic force of the spring 431 and lift the limit rod 43 out of the limit groove 44. Operate the handle 433 to rotate the valve stem 3. When the valve stem 3 is close to the specified position, release the movable rod 421, and the spring 431 pushes the limit rod 43 to the guide rail 45. As the valve stem 3 continues to rotate, the spring 431 pushes the limit rod 43 into the limit groove 44, thereby realizing rapid and accurate adjustment of the valve stem 3.

[0053] In order to solve the problem that it is inconvenient to quickly and accurately adjust the position of the valve core, in this solution, through the auxiliary effect of the positioning mechanism 4, the valve stem 3 can be rotated to the specified position, so that the channel 21 connects the liquid inlet pipe 11 with one of the liquid outlet pipes 11, or the channel 21 is staggered with all the pipes 11 to achieve blocking, thereby solving the problem that it is inconvenient to quickly and accurately adjust the position of the valve core.

[0054] In order to improve the flexibility of the valve stem 3, in the present embodiment, since the positioning mechanism 4 includes a fixed end 41 detachably mounted on the shell 1, the fixed end 41 is rotatably connected to a rotating portion 42, and the valve stem 3 is arranged on the rotating portion 42, the valve stem 3 is driven by the rotating portion 42 to rotate along the axis of the valve stem 3 throughout a circle, thereby improving the flexibility of the valve stem 3.

[0055] In order to realize the rapid rotation of the valve core 2 to the specified position, in the present solution, since a limiting rod 43 is installed on the rotating part 42, a plurality of limiting grooves 44 cooperating with the limiting rod 43 are formed on the fixed end 41. By cooperating between the limiting rod 43 and the specified limiting grooves 44, the valve core 2 can be rapidly rotated to the specified position, and then the channel 21 can be adjusted to be coaxial with the specified pipeline 11 or staggered with all pipelines 11.

[0056] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-way bellows ball valve, characterized in that: include: A shell (1), wherein three pipes (11) are formed on the shell (1); A valve core (2) is installed in the housing (1), a channel (21) is formed in the valve core (2), and the diameter of the channel (21) is smaller than the distance between two adjacent pipes (11); A valve stem (3) connected to the valve core (2) and used to rotate the valve core (2), wherein a bellows (31) is mounted on the valve stem (3); A positioning mechanism (4) is connected to the valve stem (3) and is used to rotate the valve stem (3) to a specified position.

2. A three-way bellows ball valve according to claim 1, characterized in that: The positioning mechanism (4) comprises a fixed end (41) detachably mounted on the housing (1); the fixed end (41) is rotatably connected to a rotating portion (42); and the valve stem (3) is arranged on the rotating portion (42).

3. A three-way bellows ball valve according to claim 2, characterized in that: A limiting rod (43) is mounted on the rotating portion (42), and a plurality of limiting grooves (44) cooperating with the limiting rod (43) are formed on the fixed end (41).

4. A three-way bellows ball valve according to claim 3, characterized in that: The limiting rod (43) is connected to a spring (431).

5. A three-way bellows ball valve according to claim 4, characterized in that: A guide rail (45) that cooperates with the limiting rod (43) is formed on the fixed end (41).

6. A three-way bellows ball valve according to claim 5, characterized in that: The rotating part (42) is hingedly connected to a movable rod (421), a U-shaped groove (422) is formed on the movable rod (421), and a step (432) matching the U-shaped groove (422) is formed on the limiting rod (43).

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