Electrically actuated control valve for solvents and method of regulating the same

Abstract

The present application belongs to the technical field of valve, and particularly relates to a solvent electric regulating valve and a regulating method thereof. The solvent electric regulating valve comprises a valve body, two pipe openings are arranged on the valve body, and a linkage mechanism is arranged at each pipe opening. The linkage mechanism comprises an adapter arranged in the pipe opening and adapted to be connected with a water pipe, and an elastic limiting assembly comprising a force ring and a limiting piece. The force ring is sleeved on the periphery of the pipe opening, the outer end of the limiting piece abuts against the force ring, and the inner end of the limiting piece is inserted into the pipe opening to clamp the adapter. The solvent electric regulating valve and the regulating method thereof are characterized in that the elastic limiting assembly of the linkage mechanism clamps the adapter when not under pressure, thereby preventing the adapter from being pulled out with the water pipe when the water pipe is replaced, and the elastic limiting assembly abuts against the water pipe connected with the adapter when under pressure. The elastic limiting assembly is rotated to limit the adapter when not under pressure, thereby facilitating replacement of the adapter.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of valves, and particularly relates to a pipe joint, in particular to an electric regulating valve for solvents and a regulating method thereof. BACKGROUND

[0002] The regulating valve has at least two pipe openings, one of which is an inlet and the other is an outlet; when in use, a water inlet pipe needs to be connected to the pipe opening of the inlet of the regulating valve.

[0003] In different use scenarios, the size of the water inlet pipe will be different, which results in that the water inlet pipe cannot be connected to the pipe opening of the regulating valve, and at this time, an adapter needs to be arranged at the pipe opening of the regulating valve to connect the water inlet pipe.

[0004] In the related art, an adapter of one type can only be matched with a water inlet pipe of one type, so when the size of the water inlet pipe changes, the adapter also needs to be replaced.

[0005] Therefore, based on the above scenario, how to solve the technical problem of inconvenient replacement of the adapter is an urgent problem for those skilled in the art.

[0006] It should be noted that the above information disclosed in the background section is only used to understand the background of the application concept, and therefore, the above description is not considered as information of the prior art. SUMMARY

[0007] The embodiments of the present disclosure at least provide an electric regulating valve for solvents and a regulating method thereof.

[0008] In a first aspect, the embodiments of the present disclosure provide a valve, comprising: a valve body, two pipe openings are arranged on the valve body, a linkage mechanism is arranged at each pipe opening, the linkage mechanism comprises: an adapter, arranged in the pipe opening, and adapted to insert a water pipe thereon; an elastic limiting assembly, comprising: a force ring and a limiting piece, the force ring is sleeved on the periphery of the pipe opening, the outer end of the limiting piece abuts against the force ring, and the inner end is inserted into the pipe opening to clamp the adapter; wherein when the adapter is disassembled, the limiting piece is moved upward by rotating the force ring to release the limiting of the adapter; and when the end cover is tightened, the end cover is connected with the pipe opening to push the force ring to move axially, and at the same time, the force ring pushes the limiting piece to move radially so that the inner end of the limiting piece abuts against the water pipe.

[0009] In an optional implementation, a guide groove is formed in the inner wall of the force ring; wherein a first spring is sleeved on the periphery of the limiting piece, the first spring pushes the outer end of the limiting piece to extend into the guide groove and abut against the force ring.

[0010] In an alternative embodiment, the guide groove comprises an axial segment and a circumferential segment; wherein the outer end of the limiting member is located in the axial segment, and the inner end clamps the adapter; when disassembling the adapter, the outer end is moved to the circumferential segment by rotating the force ring, i.e. the limiting member is lifted to release the clamping of the adapter.

[0011] In an alternative embodiment, the outer side wall of the outer end is provided with a first inclined surface, and the outer side inner wall of the axial segment is provided with a second inclined surface; wherein when tightening the end cover, the force ring pushes the first inclined surface of the limiting member through the second inclined surface, so that the limiting member moves towards the adapter to abut against the water pipe.

[0012] In an alternative embodiment, the inner side wall of the outer end is a first straight surface, and the inner side inner wall of the axial segment is a second straight surface; wherein the outer periphery of the pipe mouth is provided with a second spring, the second spring pushes the force ring away from the pipe mouth, and the outer end is limited by the first straight surface abutting against the second straight surface of the force ring.

[0013] In an alternative embodiment, the clamping end of the adapter is provided with a clamping ring with a convex side wall; wherein the inner end is located on the outer side of the clamping ring to clamp the adapter.

[0014] In an alternative embodiment, the side wall of the pipe mouth is provided with a mounting hole in the radial direction, and the hole bottom of the mounting hole is provided with a through hole; the limiting member is arranged in the mounting hole, and the inner end extends into the pipe mouth; the side wall of the limiting member is provided with an annular boss; wherein one end of the first spring abuts against the annular boss, and the other end abuts against the mounting hole.

[0015] In a second aspect, the embodiments of the present disclosure further provide a valve adjusting method, comprising: arranging the adapter in the pipe mouth to insert the water pipe; clamping the adapter by the limiting member of the elastic limiting assembly; releasing the clamping of the adapter by rotating the force ring of the elastic limiting assembly; and abutting the limiting member of the elastic limiting assembly against the water pipe by tightening the end cover.

[0016] In an alternative embodiment, the guide groove comprises an axial segment; wherein the outer periphery of the limiting member is provided with a first spring, the first spring pushes the outer end of the limiting member to extend into the axial segment and abut against the force ring; the outer side wall of the outer end is provided with a first inclined surface, and the outer side inner wall of the axial segment is provided with a second inclined surface; when tightening the end cover, the force ring pushes the first inclined surface of the limiting member through the second inclined surface, so that the limiting member moves towards the adapter to abut against the water pipe.

[0017] In an alternative embodiment, the guide groove further comprises a circumferential segment; wherein when disassembling the adapter, the outer end is moved to the circumferential segment by rotating the force ring to release the clamping of the adapter.

[0018] The beneficial effects of the present application are that the electric regulating valve for solvent and the regulating method thereof set the linkage mechanism, so that the elastic limiting component of the linkage mechanism clamps the adapter when not under pressure, thereby preventing the adapter from being pulled out with the water pipe when replacing the water pipe, and the elastic limiting component abuts against the water pipe inserted into the adapter when under pressure, thereby preventing the water pipe from being separated or leaking, and the elastic limiting component limits the adapter by rotating the contact when not under pressure, thereby facilitating the replacement of different types of adapters.

[0019] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0020] In order to make the above-mentioned objectives, characteristics and advantages of the present application more apparent, a preferred embodiment is specifically described herein, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the accompanying drawings required to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 A structural schematic diagram of an electric regulating valve for solvent provided by the embodiment of the present disclosure is shown in the figure.

[0023] Figure 2 A structural schematic diagram of a limiting piece in a first state provided by the embodiment of the present disclosure is shown in the figure.

[0024] Figure 3 A structural schematic diagram of a limiting piece in a third state provided by the embodiment of the present disclosure is shown in the figure.

[0025] Figure 4 A structural schematic diagram of an elastic limiting component provided by the embodiment of the present disclosure is shown in the figure.

[0026] Figure 5 A structural schematic diagram of a guide groove on a force ring provided by the embodiment of the present disclosure is shown in the figure.

[0027] In the figure:

[0028] Valve body 1, pipe opening 11, annular insertion groove 111, water pipe 12, mounting hole 13;

[0029] Linkage mechanism A;

[0030] Adapter 2, snap-fit ​​end 21, snap-fit ​​ring 22;

[0031] Elastic limiting component 3, force ring 31, guide groove 311, axial section 311a, circumferential section 311b, second inclined surface 311c, second straight surface 311d, limiting member 32, outer end 321, first inclined surface 321a, first straight surface 321b, inner end 322, annular boss 323, first spring 33, second spring 34;

[0032] End cap 4. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.

[0035] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0036] like Figure 1 As shown, at least one embodiment provides an electric regulating valve for solvents, including: a valve body 1, the valve body 1 having two ports 11, each port 11 being provided with a linkage mechanism A, the linkage mechanism A including: an adapter 2 and an elastic limiting component 3.

[0037] like Figure 4 As shown, in some embodiments, the inner end of the adapter 2 is a snap-fit ​​end 21, which is inserted into the pipe opening 11, and the outer end of the adapter 2 is used to connect to the water pipe 12.

[0038] In this embodiment, an annular insertion groove 111 is provided inside the pipe opening 11, and the snap-fit ​​end 21 of the adapter 2 is inserted into the annular insertion groove 111.

[0039] like Figure 4 As shown, in some embodiments, the snap-fit ​​end 21 of the adapter 2 is provided with a snap-fit ​​ring 22 protruding from the sidewall.

[0040] In the embodiment, the elastic limiting assembly 3 prevents the adapter 2 from being pulled out with the water pipe 12 by clamping the clamping ring 22 when the water pipe 12 is replaced.

[0041] As shown in the drawings, in some embodiments, the elastic limiting assembly 3 comprises a force ring 31 and a limiting piece 32, the force ring 31 is sleeved on the outer periphery of the pipe mouth 11, the limiting piece 32 is radially arranged on the pipe mouth 11, the outer end 321 of the limiting piece 32 abuts against the force ring 31, and the inner end 322 of the limiting piece 32 extends into the pipe mouth 11 to clamp the adapter 2. Figure 2

[0042] In the embodiment, the limiting piece 32 has the following three states:

[0043] As shown in the drawings, in the first state, the inner end 322 of the limiting piece 32 extends into the pipe mouth 11, and the inner end 322 is located outside the clamping ring 22, thereby preventing the clamping ring 22 from being pulled out. Figure 2

[0044] In the second state, when the adapter 2 is disassembled, the limiting piece 32 is moved upward by rotating the force ring 31 based on the first state to release the limiting of the adapter 2.

[0045] As shown in the drawings, in the third state, when the end cover 4 is tightened, the limiting piece 32 is moved radially by the end cover 4 connected with the pipe mouth 11 to push the force ring 31 to move axially, and the force ring 31 pushes the limiting piece 32 to move radially to make the inner end 322 of the limiting piece 32 abut against the water pipe 12 based on the first state. Figure 3

[0046] In some embodiments, the inner wall of the force ring 31 is provided with a guide groove 311, and the outer periphery of the limiting piece 32 is sleeved with a first spring 33.

[0047] In the embodiment, the outer end 321 of the limiting piece 32 extends into the guide groove 311 to abut against the force ring 31 by the pushing of the first spring 33.

[0048] In some embodiments, the guide groove 311 comprises an axial section 311a and a circumferential section 311b.

[0049] In the first state, the outer end 321 of the limiting piece 32 is located in the axial section 311a, and the inner end 322 clamps the adapter 2; in the second state (disassembly of the adapter 2), the outer end 321 is moved to the circumferential section 311b by rotating the force ring 31 to release the limiting of the adapter 2.

[0050] In some embodiments, the outer side wall of the outer end 321 is provided with a first inclined surface 321a, and the outer side inner wall of the axial section 311a is provided with a second inclined surface 311c. ​​​

[0051] In the third state (tighten the end cover 4), the end cover 4 pushes the force ring 31, and the force ring 31 pushes the first inclined surface 321a of the limiting piece 32 through the second inclined surface 311c, so that the limiting piece 32 moves towards the adapter 2 to tightly abut against the water pipe 12.

[0052] In some embodiments, the inner side wall of the outer end portion 321 is a first straight surface 321b, and the inner side wall of the axial section 311a is a second straight surface 311d.

[0053] In the embodiment, in order to prevent the force ring 31 from being separated from the limiting piece in the first state, a second spring 34 is sleeved on the outer periphery of the pipe mouth 11, the second spring 34 pushes the force ring 31 to move away from the pipe mouth 11, and the outer end portion 321 abuts against the second straight surface 311d of the force ring 31 through the first straight surface 321b, so as to limit the force ring 31.

[0054] In some embodiments, a mounting hole 13 is formed in the side wall of the pipe mouth 11 in the radial direction, a through hole is formed in the hole bottom of the mounting hole 13, the limiting piece 32 is arranged in the mounting hole 13, and the inner end portion 322 extends into the pipe mouth 11; the side wall of the limiting piece 32 is provided with an annular boss 323; one end of the first spring 33 abuts against the annular boss 323, and the other end abuts against the mounting hole 13.

[0055] As shown in Figures 1 to 3 At least one embodiment also provides a regulating method of the electric regulating valve for solvent, which comprises: arranging the adapter 2 in the pipe mouth 11 to plug the water pipe 12; clamping the adapter 2 by the limiting piece 32 of the elastic limiting assembly 3; releasing the limiting of the adapter 2 by rotating the force ring 31 of the elastic limiting assembly 3; and tightly abutting the limiting piece 32 of the elastic limiting assembly 3 against the water pipe 12 by tightening the end cover 4.

[0056] For the specific structure and implementation process of the electric regulating valve for solvent, refer to the related description in the above embodiments, which will not be repeated here.

[0057] As shown in Figure 2 , Figure 5 In some embodiments, the guide groove 311 comprises: an axial section 311a; the outer periphery of the limiting piece 32 is sleeved with a first spring 33, the first spring 33 pushes the outer end portion 321 of the limiting piece 32 to extend into the axial section 311a and abut against the force ring 31; the outer side wall of the outer end portion 321 is provided with a first inclined surface 321a, and the outer side wall of the axial section 311a is provided with a second inclined surface 311c; when the end cover 4 is tightened, the force ring 31 pushes the first inclined surface 321a of the limiting piece 32 through the second inclined surface 311c, so that the limiting piece 32 moves towards the adapter 2 to tightly abut against the water pipe 12.

[0058] In some embodiments, the guide groove 311 further comprises a circumferential segment 311b; wherein when the adapter 2 is disassembled, the outer end 321 is moved to the circumferential segment 311b by rotating the force ring 31 to release the limiting of the adapter 2.

[0059] In summary, the electric regulating valve for solvent and the regulating method thereof set the linkage mechanism A, so that the elastic limiting component 3 of the linkage mechanism A clamps the adapter 2 when not under pressure, thereby preventing the adapter 2 from being pulled out with the water pipe 12 when the water pipe 12 is replaced, and the elastic limiting component 3 abuts against the water pipe 12 inserted into the adapter 2 when under pressure, thereby preventing the water pipe 12 from being separated or leaking, and the elastic limiting component 3 limits the adapter 2 by rotating the contact when not under pressure, thereby facilitating the replacement of adapters 2 of different models.

[0060] In this document, when a first element is referred to as being "on" a second element, it can be directly on the second element or a third element can be interposed between the first element and the second element.

[0061] In this document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to", or "coupled to" another element or layer, it can be directly on, engaged, connected, attached, or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to", or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0062] In this document, example embodiments of the disclosure will be described in greater detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of", when preceded by the term "comprising", modify the phrase following the term "comprising". For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0063] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order of performance. Additional or alternative steps can be employed.

[0064] As used herein, the phrases "in an embodiment," "according to an embodiment," "in some embodiments," and the like generally mean the particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of the present disclosure. Thus, appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. As used herein, the term "example" or "exemplary" means "serving as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Rather, the use of the terms "example" or "exemplary" is intended to present concepts in a concrete manner.

[0065] In the description of the present application, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] 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 do not indicate or imply 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, terms such as "first", "second" and other numerical terms are used herein without implying a sequence or order, unless the context clearly indicates otherwise. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0067] Spatially relative terms, such as "inner," "outer," "beneath," "below," "lower," "above," "upper," and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0068] In the above discussion, unless otherwise stated, the terms "about," "approximately," "substantially" and the like mean a variation of + / - 10% when used to describe a numerical value.

[0069] With the above ideal embodiments according to the present application as the inspiration, through the above description, relevant workers can certainly make various changes and modifications within the scope of not deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. An electrically powered control valve for solvents, comprising: Valve body (1), which is provided with two pipe mouths (11), each of which is provided with a linkage mechanism (A), characterized in that The linkage mechanism (A) comprises: An adapter (2) is arranged in the pipe mouth (11), and a water pipe (12) is adapted to be inserted into the adapter (2); An elastic limiting assembly (3) comprises a force ring (31) and a limiting piece (32), the force ring (31) is sleeved on the periphery of the pipe mouth (11), the outer end (321) of the limiting piece (32) abuts against the force ring (31), and the inner end (322) is inserted into the pipe mouth (11) to clamp the adapter (2); wherein When the adapter (2) is disassembled, the limiting piece (32) is moved upward to release the limiting of the adapter (2) by rotating the force ring (31); and When the end cover (4) is tightened, the end cover (4) is connected with the pipe mouth (11) to push the force ring (31) to move axially, and the force ring (31) pushes the limiting piece (32) to move radially to make the inner end (322) of the limiting piece (32) abut against the water pipe (12); The inner wall of the force ring (31) is provided with a guide groove (311); wherein The periphery of the limiting piece (32) is sleeved with a first spring (33), the first spring (33) pushes the outer end (321) of the limiting piece (32) to extend into the guide groove (311) and abut against the force ring (31); The guide groove (311) comprises an axial section (311a) and a circumferential section (311b); wherein The outer end (321) of the limiting piece (32) is located in the axial section (311a), and the inner end (322) clamps the adapter (2); When the adapter (2) is disassembled, the outer end (321) is moved to the circumferential section (311b) by rotating the force ring (31), that is, the limiting of the adapter (2) is released by moving the limiting piece (32) upward; The outer side wall of the outer end (321) is provided with a first inclined surface (321a), and the outer side inner wall of the axial section (311a) is provided with a second inclined surface (311c); wherein When the end cover (4) is tightened, the force ring (31) pushes the first inclined surface (321a) of the limiting piece (32) through the second inclined surface (311c), so that the limiting piece (32) moves towards the adapter (2) to abut against the water pipe (12).

2. The electric regulating valve for solvent according to claim 1, wherein The inner side wall of the outer end (321) is a first straight surface (321b), and the inner side inner wall of the axial section (311a) is a second straight surface (311d); wherein The periphery of the pipe mouth (11) is sleeved with a second spring (34), the second spring (34) pushes the force ring (31) to move away from the pipe mouth (11), and the outer end (321) abuts against the second straight surface (311d) of the force ring (31) through the first straight surface (321b) to limit.

3. The electric regulating valve for solvent according to claim 2, wherein The clamping end (21) of the adapter (2) is provided with a clamping ring (22) with a convex side wall; wherein The inner end (322) is located outside the clamping ring (22) to clamp the adapter (2).

4. The electric regulating valve for solvent according to claim 3, wherein, The side wall of the nozzle (11) is provided with a mounting hole (13) in the radial direction; The limiting piece (32) is arranged in the mounting hole (13), and the inner end (322) extends into the nozzle (11); The side wall of the limiting piece (32) is provided with an annular boss (323); One end of the first spring (33) abuts against the annular boss (323), and the other end abuts against the mounting hole (13).

5. A method of regulating an electric regulating valve for a solvent as claimed in claim 1, characterized in that Comprise: The adapter (2) is arranged in the nozzle (11) to plug the water pipe (12); The limiting piece (32) of the elastic limiting assembly (3) clamps the adapter (2); The force ring (31) of the elastic limiting assembly (3) is rotated to release the limiting of the adapter (2); The limiting piece (32) of the elastic limiting assembly (3) is abutted against the water pipe (12) by tightening the end cover (4).

6. The regulating method of the electric regulating valve for solvent according to claim 5, wherein, The inner wall of the force ring (31) is provided with a guide groove (311); The guide groove (311) comprises an axial section (311a); wherein The outer periphery of the limiting piece (32) is provided with a first spring (33), the first spring (33) pushes the outer end (321) of the limiting piece (32) to extend into the axial section (311a) and abut against the force ring (31); The outer side wall of the outer end (321) is provided with a first inclined surface (321a), and the outer side inner wall of the axial section (311a) is provided with a second inclined surface (311c); When the end cover (4) is tightened, the force ring (31) pushes the first inclined surface (321a) of the limiting piece (32) through the second inclined surface (311c), so that the limiting piece (32) moves towards the adapter (2) to abut against the water pipe (12).

7. The regulating method of the electric regulating valve for solvent according to claim 6, wherein, The guide groove (311) further comprises a circumferential section (311b); wherein When the adapter (2) is disassembled, the outer end (321) is moved to the circumferential section (311b) by rotating the force ring (31) to release the limiting of the adapter (2).

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