Labyrinth type sleeve adjusting valve

Abstract

The utility model discloses a labyrinth type sleeve adjusting valve which comprises a valve body, an adjusting assembly and a sleeve assembly, the valve body is provided with a medium channel and a penetrating part communicated with the outside and the medium channel, and the adjusting end of the adjusting assembly penetrates through the penetrating part and extends into the medium channel; the sleeve assembly comprises a guide part and a sleeve part, the sleeve part is arranged in the medium channel, the guide part is arranged in the penetrating part and abuts against the sleeve part, the guide part is provided with a guide part, the sleeve part is provided with a sliding part corresponding to the guide part, and the adjusting end of the adjusting assembly is arranged between the guide part and the sliding part in a sliding mode; wherein the sleeve part is provided with a plurality of circulation units communicating with the sliding part and the medium channel, every two adjacent circulation units are arranged in a staggered mode in the axis direction of the sleeve part, and every two adjacent circulation units comprise the same cross section of the sleeve part. The labyrinth type sleeve adjusting valve of the structure is beneficial to improving the adjusting effect of the adjusting valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a labyrinth sleeve regulating valve. BACKGROUND

[0002] The labyrinth sleeve regulating valve is a common regulating valve product in the market, and is widely used in high pressure difference, strong scouring, high flow rate and high noise occasions due to its unique sleeve flow channel structure, and can accurately regulate the pressure, temperature and flow rate of liquid, gas and high-temperature steam.

[0003] In the prior art, the labyrinth sleeve regulating valve mainly adopts a labyrinth sleeve, wherein the labyrinth sleeve is generally sleeved on a valve core component, so that when the valve core component moves up and down in a valve cavity, the medium can flow through a flow channel formed on the labyrinth sleeve. At present, the labyrinth sleeve is mainly formed by stacking a plurality of disc pieces, and each disc piece is provided with a flow-through groove for the flow of the medium, so that when all the disc pieces are stacked together, each flow-through groove can form a flow channel. As for the formation of the flow-through groove, there are mainly two forms of machining a zigzag flow-through groove and machining an annular and radial flow-through groove, so as to limit the flow of the medium through the flow channels formed by the two flow-through grooves.

[0004] However, the existing labyrinth sleeve regulating valve is formed by stacking a plurality of disc pieces, so that there is a gap between the flow channels on the adjacent two disc pieces, so that when the valve core component moves up and down in the valve cavity, there is a stroke without adjustment effect, thereby causing poor adjustment effect. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model wants to solve the technical problem of overcoming the defects of the existing labyrinth sleeve regulating valve, that is, when the valve core component moves up and down in the valve cavity, the valve core component has a stroke without adjustment effect, resulting in poor adjustment effect of the valve.

[0006] Therefore, the utility model provides a labyrinth sleeve regulating valve, which comprises:

[0007] A valve body and a regulating assembly, the valve body has a medium channel and a through portion communicating with the outside and the medium channel, and the regulating end of the regulating assembly extends into the medium channel through the through portion;

[0008] A sleeve assembly, comprising a guide piece and a sleeve piece, the sleeve piece is arranged in the medium channel, the guide piece is arranged in the through portion and abuts against the sleeve piece, the guide piece is provided with a guide portion, the sleeve piece is provided with a sliding portion corresponding to the guide portion, and the regulating end of the regulating assembly is slidingly arranged between the guide portion and the sliding portion;

[0009] The sleeve member is provided with a plurality of flow units which are communicated with the sliding part and the medium channel, and each adjacent two flow units are staggered in the axial direction of the sleeve member and each adjacent two flow units contain the same cross section of the sleeve member.

[0010] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: in the axial direction of the sleeve member, each adjacent two flow units are passed through the same cross section of the sleeve member.

[0011] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: in the axial direction of the sleeve member, each adjacent two flow units are passed through the same cross section of the sleeve member.

[0012] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: the flow unit comprises a plurality of communication parts and a plurality of guide parts, at least one communication part is communicated with the sliding part, at least one other communication part is communicated with the medium channel, and any guide part is arranged between adjacent two communication parts.

[0013] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: in the direction of the sliding part towards the medium channel, the number of communication parts gradually increases.

[0014] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: the regulating assembly comprises a valve core and a valve rod which are connected with each other, the valve core is used as a regulating end of the regulating assembly and is slidably arranged in the sliding part, and one end of the valve rod away from the valve core is stretched out to the outside through the through part.

[0015] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: the labyrinth sleeve regulating valve further comprises a cover member which is adapted to be connected with the valve body to close the through part.

[0016] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: the cover member is provided with a giving part, and one end of the valve rod away from the valve core is adapted to be stretched out to the outside through the giving part when the cover member is connected with the valve body.

[0017] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: the labyrinth sleeve regulating valve further comprises a valve seat which is arranged in the medium channel and connected with the valve body, and the sleeve member is connected with the valve seat.

[0018] Optionally, the labyrinth sleeve regulating valve has the following technical scheme: the labyrinth sleeve regulating valve further comprises a sealing assembly which comprises a first sealing member and a second sealing member, the first sealing member is arranged between the valve rod and the cover member, and the second sealing member is arranged between the valve core and the guide member.

[0019] The technical scheme provided by the utility model has the following advantages:

[0020] 1. The labyrinth sleeve regulating valve provided by the utility model, including a valve body, a regulating assembly and a sleeve assembly, the valve body has a medium channel and a through portion which communicates the medium channel with the outside world, the regulating end of the regulating assembly extends into the medium channel through the through portion; the sleeve assembly includes a guide piece and a sleeve piece, the sleeve piece is arranged in the medium channel, the guide piece is arranged in the through portion and abuts against the sleeve piece, a guide portion is formed on the guide piece, a sliding portion corresponding to the guide portion is formed on the sleeve piece, and the regulating end of the regulating assembly is slidingly arranged between the guide portion and the sliding portion; wherein a plurality of flow units which communicate the sliding portion with the medium channel are formed on the sleeve piece, and every two adjacent flow units are staggered in the axial direction of the sleeve piece and contain the same cross section of the sleeve piece.

[0021] The labyrinth sleeve regulating valve has the advantages that the regulating assembly and the sleeve assembly are arranged in the valve body, the valve body has a medium channel and a through portion which communicates the medium channel with the outside world, the regulating end of the regulating assembly extends into the medium channel through the through portion, the sleeve assembly includes a guide piece and a sleeve piece, the sleeve piece is arranged in the medium channel, the guide piece is arranged in the through portion and abuts against the sleeve piece, a guide portion is formed on the guide piece, a sliding portion corresponding to the guide portion is formed on the sleeve piece, the regulating end of the regulating assembly extends into the guide portion and the sliding portion through the through portion, the regulating end of the regulating assembly can slide in the guide portion and the sliding portion under the action of external force, a plurality of flow units which communicate the sliding portion with the medium channel are formed on the sleeve piece, the medium flowing in the medium channel can flow through the flow units on the sleeve piece which avoid the regulating end of the regulating assembly when the regulating end of the regulating assembly slides in the guide portion and the sliding portion under the action of external force, the medium channel is blocked when the regulating end of the regulating assembly completely blocks the sliding portion, the medium cannot flow in the medium channel, the labyrinth sleeve regulating valve can regulate the medium, every two adjacent flow units are staggered in the axial direction of the sleeve piece and contain the same cross section of the sleeve piece, the regulating end of the regulating assembly can avoid or block the flow units when it slides in the sliding portion, the flow units can communicate or block the medium channel and the sliding portion, the regulating end of the regulating assembly can regulate the medium after sliding, and the regulating effect of the regulating valve is improved.

[0022] 2.The labyrinth sleeve regulating valve provided by the utility model, in the axial direction of the sleeve piece, every two adjacent flow-through units are passed through the same cross section of the sleeve piece.In the axial direction of the sleeve piece, the end of every two adjacent flow-through units close to each other is on the same cross section of the sleeve piece.The flow-through unit comprises a plurality of communication parts and a plurality of guide parts, at least one communication part is communicated with the sliding part, at least another communication part is communicated with the medium channel, and any guide part is arranged between the adjacent two communication parts.

[0023] The labyrinth sleeve regulating valve with the structure is provided with every two adjacent flow-through units passed through the same cross section of the sleeve piece in the axial direction of the sleeve piece, so that the parts of the two adjacent flow-through units in the axial direction of the sleeve piece can overlap, thereby realizing the flow-through or plugging of the part of the flow-through unit when the adjusting end of the adjusting assembly slides in the sliding part.

[0024] 3.The labyrinth sleeve regulating valve provided by the utility model, in the direction of the sliding part towards the medium channel, the number of communication parts gradually increases.The adjusting assembly comprises a valve core and a valve rod connected with each other, the valve core is used as the adjusting end of the adjusting assembly and is slidably arranged in the sliding part, and the end of the valve rod away from the valve core is stretched out to the outside through the penetrating part.The labyrinth sleeve regulating valve further comprises a cover piece, the cover piece is suitable for being connected with the valve body to close the penetrating part.

[0025] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions gradually increases in the direction of the sliding portion towards the medium channel, so that the flow capacity and efficiency of the medium in the flow unit are improved, and the flow efficiency of the medium is improved. The adjusting assembly includes a valve core and a valve rod connected with each other, the valve core is the adjusting end of the adjusting assembly and is slidably arranged in the sliding portion, and the valve rod is extended to the outside through the penetrating portion at the end away from the valve core, so that the outside can apply an external force to the valve core through the valve rod, and the outside can adjust the position of the valve core in the sliding portion to adjust the flow unit. The cover member is connected with the valve body, and the cover member is a valve cover in the embodiment, the cover member can be connected with the valve body to seal the penetrating portion on the valve body.

[0026] 4. The labyrinth sleeve regulating valve has the advantages that the number of the communication portions gradually increases in the direction of the sliding portion towards the medium channel, so that the flow capacity and efficiency of the medium in the flow unit are improved, and the flow efficiency of the medium is improved. The adjusting assembly includes a valve core and a valve rod connected with each other, the valve core is the adjusting end of the adjusting assembly and is slidably arranged in the sliding portion, and the valve rod is extended to the outside through the penetrating portion at the end away from the valve core, so that the outside can apply an external force to the valve core through the valve rod, and the outside can adjust the position of the valve core in the sliding portion to adjust the flow unit. The cover member is connected with the valve body, and the cover member is a valve cover in the embodiment, the cover member can be connected with the valve body to seal the penetrating portion on the valve body.

[0027] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions gradually increases in the direction of the sliding portion towards the medium channel, so that the flow capacity and efficiency of the medium in the flow unit are improved, and the flow efficiency of the medium is improved. The adjusting assembly includes a valve core and a valve rod connected with each other, the valve core is the adjusting end of the adjusting assembly and is slidably arranged in the sliding portion, and the valve rod is extended to the outside through the penetrating portion at the end away from the valve core, so that the outside can apply an external force to the valve core through the valve rod, and the outside can adjust the position of the valve core in the sliding portion to adjust the flow unit. The cover member is connected with the valve body, and the cover member is a valve cover in the embodiment, the cover member can be connected with the valve body to seal the penetrating portion on the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0029] Figure 1 A cross-sectional schematic view of a labyrinth sleeve regulating valve provided in an embodiment of the present application;

[0030] Figure 2 A first cross-sectional schematic view of a sleeve provided in an embodiment of the present application;

[0031] Figure 3 A second cross-sectional schematic view of a sleeve provided in an embodiment of the present application;

[0032] Figure 4 A third cross-sectional schematic view of a sleeve provided in an embodiment of the present application;

[0033] Explanation of reference signs:

[0034] 1 - valve body; 11 - medium passage;

[0035] 2 - regulating assembly; 21 - valve core; 22 - valve rod;

[0036] 3 - sleeve assembly; 31 - guide; 32 - sleeve; 321 - sliding part; 322 - flow unit; 3221 - communication part; 3222 - flow guide; 4 - cover; 5 - valve seat;

[0037] 61 - first sealing member; 62 - second sealing member. DETAILED DESCRIPTION

[0038] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0042] Example

[0043] This embodiment provides a labyrinth-type sleeve regulating valve, such as Figures 1 to 4 As shown, the device includes a valve body 1, an adjusting assembly 2, and a sleeve assembly 3. The valve body 1 has a medium channel 11 and a through portion connecting the outside to the medium channel 11. The adjusting end of the adjusting assembly 2 extends into the medium channel 11 through the through portion. The sleeve assembly 3 includes a guide 31 and a sleeve 32. The sleeve 32 is disposed in the medium channel 11, and the guide 31 is disposed in the through portion and abuts against the sleeve 32. The guide 31 has a guiding portion, and the sleeve 32 has a sliding portion 321 corresponding to the guiding portion. The adjusting end of the adjusting assembly 2 is slidably disposed between the guiding portion and the sliding portion 321. The sleeve 32 has a plurality of flow units 322 connecting the sliding portion 321 and the medium channel 11. In the axial direction of the sleeve 32, every two adjacent flow units 322 are staggered, and every two adjacent flow units 322 include the same cross section of the sleeve 32.

[0044] The labyrinth-type sleeve regulating valve with the above-described structure comprises an adjusting component 2 and a sleeve assembly 3 disposed within the valve body 1. The valve body 1 has a medium channel 11 and a through-hole in the medium channel 11 that connects to the outside. In this embodiment, the through-hole is a through hole. The adjusting end of the adjusting component 2 can extend into the medium channel 11 from the outside through the through-hole. The sleeve assembly 3 includes a guide member 31 and a sleeve member 32. In this embodiment, the guide member 31 and the sleeve member 32 are respectively a guide sleeve and a sleeve. The sleeve member 32 is disposed within the medium channel 1. Inside the through portion 1, the guide member 31 is disposed within the through portion and abuts against the sleeve member 32. At the same time, the guide member 31 is provided with a guide portion, which is a guide hole in this embodiment. The sleeve member 32 is provided with a sliding portion 321 corresponding to the guide portion, which is a sliding hole in this embodiment. This allows the adjusting end of the adjusting component 2 to extend into the guide portion and the sliding portion 321 through the through portion. Under the action of external force, the adjusting end of the adjusting component 2 can slide within the guide portion and the sliding portion 321.

[0045] In addition, the sleeve 32 is provided with several flow units 322 that connect the sliding part 321 and the medium channel 11. When the adjusting end of the adjusting component 2 slides in the guide part and the sliding part 321 under the action of external force, the medium flowing in the medium channel 11 can flow through the flow units 322 on the sleeve 32 that avoid the adjusting end of the adjusting component 2. When the adjusting end of the adjusting component 2 completely blocks the sliding part 321, the medium channel 11 is blocked because there are no flow units 322 connecting the medium channel 11 and the sliding part 321. Thus, the medium cannot flow in the medium channel 11. In this way, the labyrinth sleeve regulating valve realizes the function of regulating the medium.

[0046] Along the axial direction of the sleeve 32, each pair of adjacent flow units 322 are staggered, and each pair of adjacent flow units 322 includes the same cross section on the sleeve 32. Thus, when the adjusting end of the adjusting component 2 slides within the sliding part 321, each time the adjusting end of the adjusting component 2 slides a certain distance, it can avoid or block part of the flow unit 322. This allows the flow unit 322 to connect or block the medium channel 11 and the sliding part 321, thereby preventing the adjusting end of the adjusting component 2 from having no regulating effect on the medium after sliding, which is beneficial to improving the regulating effect of the regulating valve.

[0047] The labyrinth-type sleeve regulating valve provided in this embodiment, such as Figures 1 to 4 As shown, in the axial direction of the sleeve 32, every two adjacent flow units 322 are passed through the same cross section of the sleeve 32.

[0048] The labyrinth sleeve regulating valve has the advantages that each two adjacent flow-through units 322 in the axial direction of the sleeve member 32 are located on the same cross section of the sleeve member 32, so that the two adjacent flow-through units 322 in the axial direction of the sleeve member 32 can be overlapped, and the flow-through or blocking of the flow-through units 322 can be realized when the adjusting end of the adjusting assembly 2 slides in the sliding part 321.

[0049] The labyrinth sleeve regulating valve has the advantages that each two adjacent flow-through units 322 in the axial direction of the sleeve member 32 are located on the same cross section of the sleeve member 32, so that the two adjacent flow-through units 322 in the axial direction of the sleeve member 32 can be overlapped, and the flow-through or blocking of the flow-through units 322 can be realized when the adjusting end of the adjusting assembly 2 slides in the sliding part 321. Figures 1 to 4

[0050] The labyrinth sleeve regulating valve has the advantages that each two adjacent flow-through units 322 in the axial direction of the sleeve member 32 are located on the same cross section of the sleeve member 32, so that the two adjacent flow-through units 322 in the axial direction of the sleeve member 32 can be overlapped, and the flow-through or blocking of the flow-through units 322 can be realized when the adjusting end of the adjusting assembly 2 slides in the sliding part 321.

[0051] The labyrinth sleeve regulating valve has the advantages that each two adjacent flow-through units 322 in the axial direction of the sleeve member 32 are located on the same cross section of the sleeve member 32, so that the two adjacent flow-through units 322 in the axial direction of the sleeve member 32 can be overlapped, and the flow-through or blocking of the flow-through units 322 can be realized when the adjusting end of the adjusting assembly 2 slides in the sliding part 321. Figures 2 to 4

[0052] The labyrinth sleeve regulating valve has the advantages that each two adjacent flow-through units 322 in the axial direction of the sleeve member 32 are located on the same cross section of the sleeve member 32, so that the two adjacent flow-through units 322 in the axial direction of the sleeve member 32 can be overlapped, and the flow-through or blocking of the flow-through units 322 can be realized when the adjusting end of the adjusting assembly 2 slides in the sliding part 321.

[0053] The labyrinth sleeve regulating valve has the advantages that each two adjacent flow-through units 322 in the axial direction of the sleeve member 32 are located on the same cross section of the sleeve member 32, so that the two adjacent flow-through units 322 in the axial direction of the sleeve member 32 can be overlapped, and the flow-through or blocking of the flow-through units 322 can be realized when the adjusting end of the adjusting assembly 2 slides in the sliding part 321. Figures 2 to 4

[0054] ​​​The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved.

[0055] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved. Figure 1 As shown in the figure, the adjusting assembly 2 comprises the valve core 21 and the valve rod 22 connected with each other, the valve core 21 is the adjusting end of the adjusting assembly 2 and is slidably arranged in the sliding portion 321, and the valve rod 22 is arranged outside through the penetrating portion.

[0056] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved.

[0057] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved. Figure 1 As shown in the figure, the adjusting assembly 2 comprises the valve core 21 and the valve rod 22 connected with each other, the valve core 21 is the adjusting end of the adjusting assembly 2 and is slidably arranged in the sliding portion 321, and the valve rod 22 is arranged outside through the penetrating portion.

[0058] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved.

[0059] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved. Figure 1 As shown in the figure, the adjusting assembly 2 comprises the valve core 21 and the valve rod 22 connected with each other, the valve core 21 is the adjusting end of the adjusting assembly 2 and is slidably arranged in the sliding portion 321, and the valve rod 22 is arranged outside through the penetrating portion.

[0060] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved.

[0061] The labyrinth sleeve regulating valve has the advantages that the number of the communication portions 3221 gradually increases in the direction of the sliding portion 321 towards the medium channel 11, the flow capacity and efficiency of the medium in the flow unit 322 are improved, and the flow efficiency of the medium is improved. Figure 1 As shown in the figure, the adjusting assembly 2 comprises the valve core 21 and the valve rod 22 connected with each other, the valve core 21 is the adjusting end of the adjusting assembly 2 and is slidably arranged in the sliding portion 321, and the valve rod 22 is arranged outside through the penetrating portion.

[0062] The labyrinth sleeve regulating valve with the above structure seals the gap between the sleeve 32 and the valve body 1 by the valve seat 5 arranged in the medium channel 11, and the sleeve 32 is connected with the valve seat 5 when installed in the medium channel 11, so that the valve seat 5 seals the gap between the sleeve 32 and the valve body 1 to prevent medium leakage.

[0063] The labyrinth sleeve regulating valve provided by the embodiment, as shown in the figure, further comprises a sealing assembly, and the sealing assembly comprises a first sealing member 61 and a second sealing member 62. Figure 1 The first sealing member 61 is arranged between the valve stem 22 and the cover member 4, and the second sealing member 62 is arranged between the valve core 21 and the guide member 31.

[0064] The labyrinth sleeve regulating valve with the above structure seals the gap between the sleeve 32 and the valve body 1 by the valve seat 5 arranged in the medium channel 11, and the sleeve 32 is connected with the valve seat 5 when installed in the medium channel 11, so that the valve seat 5 seals the gap between the sleeve 32 and the valve body 1 to prevent medium leakage.

[0065] The labyrinth sleeve adjusting valve is characterized in that: the adjusting end of the adjusting assembly 2 can be inserted into the medium channel 11 through the through portion from the outside, the sleeve assembly 3 comprises a guide piece 31 and a sleeve piece 32, the sleeve piece 32 is arranged in the medium channel 11, the guide piece 31 is arranged in the through portion, the guide piece 31 is in abutment with the sleeve piece 32, the guide portion is arranged on the guide piece 31, the sliding portion 321 corresponding to the guide portion is arranged on the sleeve piece 32, the adjusting end of the adjusting assembly 2 can be inserted into the guide portion and the sliding portion 321 through the through portion, the adjusting end of the adjusting assembly 2 can slide in the guide portion and the sliding portion 321 under the action of external force, the flow-through units 322 are arranged on the sleeve piece 32 and are in communication with the sliding portion 321 and the medium channel 11, the medium flowing in the medium channel 11 can flow through the flow-through units 322 on the sleeve piece 32 avoiding the adjusting end of the adjusting assembly 2 when the adjusting end of the adjusting assembly 2 slides in the guide portion and the sliding portion 321 under the action of external force, the medium channel 11 is blocked when the adjusting end of the adjusting assembly 2 completely blocks the sliding portion 321, the medium cannot flow in the medium channel 11, the function of adjusting the medium by the labyrinth sleeve adjusting valve is realized, the adjacent two flow-through units 322 are staggered in the axial direction of the sleeve piece 32, the same cross section of the sleeve piece 32 is contained in the adjacent two flow-through units 322, the adjusting end of the adjusting assembly 2 can avoid or block the flow-through units 322 when the adjusting end of the adjusting assembly 2 slides in the sliding portion 321, the flow-through units 322 can be in communication or block the medium channel 11 and the sliding portion 321, the adjusting effect of the adjusting valve is improved.

[0066] Obviously, the above embodiments are only examples for clearly illustrating the present application, and are not intended to limit the present application. Based on the above description, other different forms of changes or modifications can be made by those skilled in the art. Here, all the embodiments are not required to be exhausted, and the obvious changes or modifications derived therefrom are still within the protection scope of the present application.

Claims

1. A labyrinth cartridge regulator valve characterized by, The utility model relates to a valve body (1) and adjusting assembly (2), the valve body (1) has medium channel (11) and the through -going portion that communicates outside and medium channel (11), the adjusting end of adjusting assembly (2) passes through the through -going portion and extends into medium channel (11) inside, Sleeve assembly (3) includes guide (31) and sleeve piece (32), the sleeve piece (32) is arranged in medium channel (11), the guide (31) is arranged in the through -going portion, and with sleeve piece (32) abuts, the guide (31) is set up with the sliding part (321) of the corresponding guide portion on sleeve piece (32), the adjusting end of adjusting assembly (2) is slidably arranged between the guide portion and the sliding part (321), Wherein, sleeve piece (32) is set up with several flow unit (322) that communicates the sliding part (321) and medium channel (11), in the axial direction of sleeve piece (32), every two adjacent flow unit (322) staggered arrangement, and every two adjacent flow unit (322) includes the same cross section of sleeve piece (32). In the axial direction of sleeve piece (32), every two adjacent flow unit (322) is crossed by the same cross section of sleeve piece (32).

2. The labyrinth sleeve regulator valve of claim 1, wherein, In the axial direction of sleeve piece (32), the end of every two adjacent flow unit (322) close to each other is on the same cross section of sleeve piece (32).

3. The labyrinth cartridge regulator valve of claim 1, wherein, Flow unit (322) includes several communication parts (3221) and several guide parts (3222), at least one communication part (3221) is communicated with the sliding part (321), at least another communication part (3221) is communicated with medium channel (11), and any guide part (3222) is arranged between adjacent two communication parts (3221).

4. A labyrinth sleeve control valve according to claim 2 or 3, c h a r a c t e r i s e d in that In the direction of the sliding part (321) towards the medium channel (11), the number of communication parts (3221) gradually increases.

5. The labyrinth sleeve regulator valve of claim 4, wherein, Adjusting assembly (2) includes valve core (21) and valve stem (22) connected with each other, valve core (21) is the adjusting end of adjusting assembly (2), and is slidably arranged in the sliding part (321), and one end of valve stem (22) away from valve core (21) is stretched out to outside through the through -going portion.

6. The labyrinth cartridge regulator valve of claim 1, wherein, It also includes a cover piece (4) adapted to be connected with the valve body (1) to close the through -going portion.

7. The labyrinth sleeve regulator valve of claim 6, wherein, The cover piece (4) is provided with a clearance portion, and when the cover piece (4) is connected with the valve body (1), the end of the valve stem (22) away from the valve core (21) is adapted to extend to the outside through the clearance portion.

8. The labyrinth sleeve regulator valve of claim 7, wherein, It also includes a valve seat (5) arranged in the medium channel (11) and connected with the valve body (1), and the sleeve piece (32) is connected with the valve seat (5).

9. The labyrinth sleeve regulator valve of claim 8, wherein, ​ 10. The labyrinth sleeve regulator valve of claim 9, wherein, A sealing assembly is also included, which comprises a first seal (61) disposed between the valve stem (22) and the cover member (4), and a second seal (62) disposed between the valve plug (21) and the guide member (31).

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