Threaded connection structure and four-way valve

Abstract

The invention discloses a threaded connection structure and a four-way valve. The threaded connection structure comprises a first component and a second component. The first component is provided with a plurality of first wedge-shaped protrusions. The second component is provided with a plurality of second wedge-shaped protrusions, and the first component and the second component are connected through a thread structure. The multiple first wedge-shaped protrusions and the multiple second wedge-shaped protrusions are arranged in the circumferential direction of the thread structure, and the corresponding first wedge-shaped protrusions and the corresponding second wedge-shaped protrusions are coupled.

Description

Technical Field

[0001] The present application relates to the technical field of threaded connection, and in particular to a threaded connection structure and a four-way valve including the threaded connection structure. Background Art

[0002] A four-way valve is an essential component in refrigeration equipment. It consists of a piston and a guide frame, which are connected by screws. When the refrigeration equipment experiences large vibrations, the screws tend to loosen slowly, posing a risk of piston seal failure. Summary of the Invention

[0003] The embodiments of the present application provide a threaded connection structure and a four-way valve to achieve the purpose of preventing the threaded connection structure from loosening, thereby solving the problem in the related art that loose screws affect the sealing of the four-way valve.

[0004] The threaded connection structure of the embodiment of the present application includes:

[0005] a first component having a plurality of first wedge-shaped protrusions; and

[0006] A second component has a plurality of second wedge-shaped protrusions, and the first component and the second component are connected via a threaded structure;

[0007] Wherein, the plurality of first wedge-shaped protrusions and the plurality of second wedge-shaped protrusions are arranged along the circumference of the thread structure, and the corresponding first wedge-shaped protrusions are coupled with the second wedge-shaped protrusions.

[0008] According to some embodiments of the present application, the first wedge-shaped protrusion has a first helical surface, the second wedge-shaped protrusion has a second helical surface, and the first helical surface is in contact with the second helical surface.

[0009] According to some embodiments of the present application, the first helical surface, the second helical surface and the helical line of the thread structure have the same rotation direction.

[0010] According to some embodiments of the present application, the number of the first wedge-shaped protrusions is the same as the number of the second wedge-shaped protrusions, and a plurality of the first wedge-shaped protrusions is coupled to a plurality of the second wedge-shaped protrusions in a one-to-one correspondence.

[0011] According to some embodiments of the present application, each of the first wedge-shaped protrusions has a first tip and a first thick end; along the circumference of the thread structure, the first tips and the first thick ends of adjacent two adjacent first wedge-shaped protrusions are connected;

[0012] Each of the second wedge-shaped protrusions has a second tip and a second thick end; along the circumference of the thread structure, the adjacent second tips and second thick ends of two adjacent second wedge-shaped protrusions are connected.

[0013] According to some embodiments of the present application, the first wedge-shaped protrusion and the second wedge-shaped protrusion extend along the circumference of the thread structure.

[0014] According to some embodiments of the present application, the first component includes a cap portion and a rod portion connected to each other, a surface of the cap portion connected to the rod portion is provided with a plurality of first wedge-shaped protrusions, and the plurality of first wedge-shaped protrusions surround the outer circumference of the rod portion;

[0015] The second component includes a first gasket and a member to be connected, the first gasket includes a first base plate and a plurality of second wedge-shaped protrusions, the first base plate has a first through hole, the first through hole passes through the first base plate, and the plurality of second wedge-shaped protrusions are protruding from a surface of the first base plate facing the cap portion and surrounding the periphery of the first through hole; the second wedge-shaped protrusions are used to stop the first wedge-shaped protrusions when the threaded structure is loosened;

[0016] The rod passes through the first through hole and is connected to the component to be connected via the threaded structure.

[0017] According to some embodiments of the present application, a first elastic member is further included, wherein the first elastic member is arranged between the first substrate and the member to be connected, and is used to provide an elastic force to the first gasket away from the member to be connected.

[0018] According to some embodiments of the present application, the component to be connected includes a first sub-component and a second sub-component, the first sub-component has a through-hole corresponding to the position of the first via hole, and the through-hole passes through the first sub-component;

[0019] The rod passes through the through hole and is connected to the second sub-component via a threaded structure.

[0020] According to some embodiments of the present application, the first component includes a fastener and a second gasket, and the second component includes a third gasket and a member to be connected;

[0021] The second gasket includes a second substrate and a plurality of the first wedge-shaped protrusions. The third gasket includes a third substrate and a plurality of the second wedge-shaped protrusions. The second substrate has a second via hole that passes through the second substrate. The third substrate has a third via hole that passes through the third substrate. The second substrate and the third substrate are respectively provided with a plurality of the first wedge-shaped protrusions and a plurality of the second wedge-shaped protrusions on facing surfaces. The plurality of the first wedge-shaped protrusions surround the periphery of the second via hole, and the plurality of the second wedge-shaped protrusions surround the periphery of the third via hole.

[0022] The fastener passes through the second through hole and the third through hole, and is connected to the to-be-connected member via the threaded structure.

[0023] According to some embodiments of the present application, a third elastic member is further included, wherein the third elastic member is arranged between the third substrate and the member to be connected, and is used to provide an elastic force to the third gasket away from the member to be connected.

[0024] According to some embodiments of the present application, the fastener includes a cap and a stem connected to each other, the cap being provided on a side of the second gasket facing away from the third gasket, the stem passing through the second through hole and the third through hole, and connected to the member to be connected via the threaded structure;

[0025] The threaded connection structure further includes a second elastic member, which is provided between the cap portion and the second base plate and is used to provide an elastic force to the fastener away from the member to be connected.

[0026] According to some embodiments of the present application, the component to be connected includes a first sub-component and a second sub-component, the first sub-component has a through-hole corresponding to the position of the second via hole and the third via hole, and the through-hole passes through the first sub-component;

[0027] The fastener passes through the through hole and is connected to the second sub-component via a threaded structure.

[0028] The four-way valve in the embodiment of the present application includes any of the above-mentioned threaded connection structures.

[0029] One embodiment of the above application has at least the following advantages or beneficial effects:

[0030] In the threaded connection structure of the embodiment of the present application, after the first component and the second component are threadedly connected, the multiple first wedge-shaped protrusions couple with the multiple second wedge-shaped protrusions. When the threaded connection structure is subjected to significant vibration, the threaded structure tends to rotate toward loosening. Due to the coupling of the multiple first wedge-shaped protrusions with the multiple second wedge-shaped protrusions, the second wedge-shaped protrusions of the second component can restrict the rotation of the first component, thereby significantly increasing the loosening torque of the threaded structure and reducing the attenuation of the loosening torque during vibration, thereby ensuring the secure connection of the threaded connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shown is a schematic diagram of the threaded connection structure of the first embodiment of the present application.

[0032] Figure 2 Shown is Figure 1 A decomposition diagram from one perspective.

[0033] Figure 3 Shown is Figure 1 A decomposition diagram from another perspective.

[0034] Figure 4 Shown is a schematic diagram of a fastener according to a first embodiment of the present application.

[0035] Figure 5 Shown is a schematic diagram of the first gasket of the first embodiment of the present application.

[0036] Figure 6 Shown is a schematic exploded view of the threaded connection structure of the second embodiment of the present application.

[0037] Figure 7 Shown is a schematic diagram of a threaded connection structure of the third embodiment of the present application.

[0038] Figure 8 Shown is Figure 7 Schematic diagram of the decomposition.

[0039] Figure 9 Shown is a schematic diagram of a fastener, a second gasket and a third gasket according to a third embodiment of the present application.

[0040] Figure 10 Shown is a schematic exploded view of the threaded connection structure of the fourth embodiment of the present application.

[0041] Figure 11 Shown is a cross-sectional view of a four-way valve according to an embodiment of the present application.

[0042] The description of the accompanying drawings is as follows:

[0043] 10. First component

[0044] 20. Second component

[0045] 21. Parts to be connected

[0046] 21a. First sub-component

[0047] 21b. Second sub-component

[0048] 100. Fasteners

[0049] 110. Hat

[0050] 111. First wedge-shaped protrusion

[0051] 111a, first tip

[0052] 111b, first butt end

[0053] 111c, first helicoid

[0054] 120. Rod

[0055] 200. Piston

[0056] 210. Perforation

[0057] 300, guide frame

[0058] 310, threaded hole

[0059] 400a, first gasket

[0060] 400b, second gasket

[0061] 400c, third gasket

[0062] 410a, first substrate

[0063] 411a, first via

[0064] 410b, second substrate

[0065] 411b, second via

[0066] 410c, third substrate

[0067] 411c, third via

[0068] 420, second wedge-shaped protrusion

[0069] 421, the second tip

[0070] 422, second thick end

[0071] 423. Second Helicoid

[0072] 510. First elastic member

[0073] 520, second elastic member

[0074] 530, third elastic member DETAILED DESCRIPTION

[0075] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0076] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to the process, method, product, or apparatus.

[0077] like Figures 1 to 3 As shown, the threaded connection structure of the embodiment of the present application includes a first component 10 and a second component 20. The first component 10 has a plurality of first wedge-shaped protrusions 111 ( Figure 4 ); The second component 20 has a plurality of second wedge-shaped protrusions 420 ( Figure 5 ), the first component 10 and the second component 20 are connected by a threaded structure; wherein, the multiple first wedge-shaped protrusions 111 and the multiple second wedge-shaped protrusions 420 are arranged along the circumference of the threaded structure, and the multiple first wedge-shaped protrusions 111 are coupled with the multiple second wedge-shaped protrusions 420.

[0078] In the threaded connection structure of the embodiment of the present application, after the first component 10 and the second component 20 are threadedly connected, the multiple first wedge-shaped protrusions 111 couple with the multiple second wedge-shaped protrusions 420. When the threaded connection structure is subjected to significant vibration, the threaded structure tends to rotate toward loosening. Due to the coupling of the multiple first wedge-shaped protrusions 111 and the multiple second wedge-shaped protrusions 420, the second wedge-shaped protrusions 420 of the second component 20 can restrict the rotation of the first component 10, thereby significantly increasing the loosening torque of the threaded structure and reducing the attenuation of the loosening torque during vibration, thereby ensuring the secure connection of the threaded connection structure.

[0079] It is understandable that the threaded connection structure of the embodiment of the present application can be applied to any field requiring threaded connection, and no further details are given here.

[0080] like Figures 2 to 5 As shown, the threaded connection structure of the first embodiment of the present application includes a fastener 100, a first gasket 400a, a piston 200, and a guide frame 300. In this embodiment of the present application, the fastener 100 corresponds to the first component 10, the piston 200 corresponds to the first sub-component 21a, and the guide frame 300 corresponds to the second sub-component 21b. The first sub-component 21a and the second sub-component 21b constitute the to-be-connected component 21, and the first gasket 400a and the to-be-connected component 21 constitute the second component 20.

[0081] The fastener 100 includes a cap 110 and a stem 120 connected to each other. A plurality of first wedge-shaped protrusions 111 are provided on one side of the cap 110 connected to the stem 120. The plurality of first wedge-shaped protrusions 111 surround the outer periphery of the stem 120. The outer periphery of the stem 120 is provided with an external thread structure.

[0082] The first gasket 400a includes a first substrate 410a and a plurality of second wedge-shaped protrusions 420. The first substrate 410a has a first through-hole 411a extending through the thickness of the first substrate 410a. The plurality of second wedge-shaped protrusions 420 are provided on a side surface of the first substrate 410a facing the cap 110 and surround the periphery of the first through-hole 411a. The second wedge-shaped protrusions 420 are used to stop the first wedge-shaped protrusions 111 when the threaded structure is loosened. The piston 200 has a through-hole 210 corresponding to the position of the first through-hole 411a, and the through-hole 210 extends through the piston 200. The rod 120 passes through the first through-hole 411a and the through-hole 210 and is threadedly connected to the threaded hole 310 of the guide frame 300.

[0083] In the embodiment of the present application, when assembling the fastener 100, first gasket 400a, piston 200, and guide frame 300, the rod 120 of the fastener 100 is first passed through the first through-hole 411a and the through-hole 210, and then inserted into the threaded hole 310 of the guide frame 300 for threaded connection. After the fastener 100 securely connects the first gasket 400a, piston 200, and guide frame 300, the plurality of first wedge-shaped protrusions 111 couple with the plurality of second wedge-shaped protrusions 420. When subjected to large vibrations, the fastener 100 tends to rotate in the loosening direction. Since the second wedge-shaped protrusion 420 can stop the first wedge-shaped protrusion 111, the fastener 100 can only rotate in the tightening direction and cannot rotate in the loosening direction. Therefore, the second wedge-shaped protrusion 420 on the first gasket 400a forms a stop for the fastener 100, limiting the rotation of the fastener 100 in the loosening direction, thereby significantly increasing the loosening torque of the fastener 100 and the guide frame 300, and reducing the attenuation of the loosening torque during vibration, thereby ensuring the firmness of the connection between the fastener 100 and the guide frame 300.

[0084] It is understood that the number of first wedge-shaped protrusions 111 on the fastener 100 and the number of second wedge-shaped protrusions 420 on the first gasket 400a can be the same or different. When the number of first wedge-shaped protrusions 111 on the fastener 100 is the same as the number of second wedge-shaped protrusions 420 on the first gasket 400a, the multiple first wedge-shaped protrusions 111 are coupled to the multiple second wedge-shaped protrusions 420 in a one-to-one correspondence, and the number of corresponding first wedge-shaped protrusions 111 and second wedge-shaped protrusions 420 increases, further increasing the loosening torque and significantly reducing the attenuation of the loosening torque during vibration.

[0085] like Figure 4 and Figure 5 As shown, the first wedge-shaped protrusion 111 has a first helical surface 111 c , and the second wedge-shaped protrusion 420 has a second helical surface 423 , and the first helical surface 111 c fits in with the second helical surface 423 .

[0086] Furthermore, the first helical surface 111c and the second helical surface 423 have the same rotation direction as the helical line of the thread structure. When the fastener 100 is tightened, since the first helical surface 111c and the second helical surface 423 have the same rotation direction as the helical line of the thread structure, as the fastener 100 is gradually tightened, the first helical surface 111c and the second helical surface 423 can also be well fitted, avoiding the formation of a gap between the first helical surface 111c and the second helical surface 423.

[0087] Please continue reading Figure 4 and Figure 5 The first wedge-shaped protrusion 111 and the second wedge-shaped protrusion 420 both extend along the circumference of the thread structure. In other words, the first wedge-shaped protrusion 111 and the second wedge-shaped protrusion 420 form an arc segment.

[0088] Each first wedge-shaped protrusion 111 has a first tip 111a and a first thick end 111b; along the circumference of the thread structure, the adjacent first tips 111a and first thick ends 111b of two adjacent first wedge-shaped protrusions 111 are connected, so that multiple first wedge-shaped protrusions 111 are connected end to end to form an annular structure.

[0089] Each second wedge-shaped protrusion 420 has a second tip 421 and a second thick end 422; along the circumference of the thread structure, the adjacent second tips 421 and second thick ends 422 of two adjacent second wedge-shaped protrusions 420 are connected, so that multiple second wedge-shaped protrusions 420 are connected end to end to form an annular structure.

[0090] like Figure 6 As shown, the threaded connection structure of the second embodiment of the present application is similar to that of the first embodiment and is not described in detail. The difference is that:

[0091] The threaded connection structure of the embodiment of the present application further includes a first elastic member 510 , which is disposed between the first substrate 410 a and the member to be connected 21 and is configured to provide an elastic force to the first gasket 400 a away from the member to be connected 21 .

[0092] It can be understood that the elastic force provided by the first elastic member 510 can make the first gasket 400a close to the cap portion 110 of the fastener 100, thereby making the multiple first wedge-shaped protrusions 111 on the cap portion 110 and the multiple second wedge-shaped protrusions 420 on the first gasket 400a remain coupled to form a stop, further increasing the loosening torque, and avoiding the first wedge-shaped protrusion 111 from detaching from the second wedge-shaped protrusion 420 and losing its anti-loosening effect due to the lack of tight fit between the cap portion 110 and the first gasket 400a.

[0093] In the embodiment of the present application, the first elastic member 510 is disposed between the first substrate 410 a and the piston 200 .

[0094] In one embodiment, the first elastic member 510 is a spring or an elastic washer, but the present invention is not limited thereto. When the first elastic member 510 is a spring or an elastic washer, the first elastic member 510 can be sleeved on the outer periphery of the rod 120 .

[0095] like Figures 7 to 9 As shown, the similarities between the threaded connection structure of the third embodiment of the present application and the threaded connection structure of the first embodiment are not repeated here, and the differences are as follows:

[0096] The first component 10 includes a fastener 100 and a second gasket 400b, while the second component 20 includes a third gasket 400c and a component to be connected 21. The fastener 100 includes a cap 110 and a stem 120, with the cap 110 located on the side of the second gasket 400b facing away from the third gasket 400c. The component to be connected 21 of the third embodiment can be designed similarly to that of the first embodiment and will not be described in detail here.

[0097] The second gasket 400b includes a second substrate 410b and a plurality of first wedge-shaped protrusions 111. The third gasket 400c includes a third substrate 410c and a plurality of second wedge-shaped protrusions 420. The second substrate 410b has a second via hole 411b extending through the second substrate 410b along its thickness. The third substrate 410c has a third via hole 411c extending through the third substrate 410c along its thickness. The second via hole 411b and the third via hole 411c are positioned correspondingly. The second substrate 410b and the third substrate 410c are stacked on each other, and the surfaces of the second substrate 410b and the third substrate 410c facing each other are respectively provided with a plurality of first wedge-shaped protrusions 111 and a plurality of second wedge-shaped protrusions 420, the plurality of first wedge-shaped protrusions 111 surround the periphery of the second through hole 411b, and the plurality of second wedge-shaped protrusions 420 surround the periphery of the third through hole 411c; the rod 120 of the fastener 100 passes through the second through hole 411b and the third through hole 411c, and is connected to the to-be-connected member 21 through a threaded structure.

[0098] In the embodiment of the present application, the rod 120 of the fastener 100 passes through the second through hole 411 b , the third through hole 411 c , and the through hole 210 of the piston 200 , and is threadedly connected to the threaded hole 310 of the guide frame 300 .

[0099] It is understood that one or more pairs of gaskets may be provided between the cap 110 of the fastener 100 and the piston 200, each pair of gaskets including a second gasket 400b and a third gasket 400c.

[0100] After the fastener 100 is tightened into place, the multiple first wedge-shaped protrusions 111 of the second gasket 400b are coupled with the multiple second wedge-shaped protrusions 420 of the third gasket 400c. When a large vibration occurs, the fastener 100 begins to loosen, and the second gasket 400b and the third gasket 400c also gradually loosen, causing the coupled first wedge-shaped protrusions 111 and the second wedge-shaped protrusions 420 to begin to separate. This in turn causes the axial distance between the second gasket 400b and the third gasket 400c along the fastener 100 to increase. As a result, the second gasket 400b abuts the cap 110 of the fastener 100, and the third gasket 400c abuts the piston 200, so that the fastener 100 remains tightened, thereby increasing the loosening torque and reducing the attenuation of the loosening torque during vibration.

[0101] like Figure 10 As shown, the similarities between the threaded connection structure of the fourth embodiment of the present application and the threaded connection structure of the third embodiment are not repeated here, and the differences are as follows:

[0102] The threaded connection structure further includes a second elastic member 520 , which is disposed between the cap portion 110 and the second base plate 410 b and is configured to provide an elastic force to the fastener 100 away from the member to be connected 21 .

[0103] It can be understood that the second elastic member 520 is pressed between the cap portion 110 and the second gasket 400b. On the one hand, the elastic force provided by the second elastic member 520 can make the second gasket 400b close to the third gasket 400c, thereby making the multiple first wedge-shaped protrusions 111 on the second gasket 400b and the multiple second wedge-shaped protrusions 420 on the third gasket 400c remain coupled to form a stop, further increasing the loosening torque; on the other hand, the elastic force provided by the second elastic member 520 can keep the fastener 100 in a tightened state, thereby increasing the loosening torque of the fastener 100 and preventing the fastener 100 from loosening.

[0104] In one embodiment, the second elastic member 520 may be a spring or an elastic washer, but the present invention is not limited thereto. When the second elastic member 520 is a spring or an elastic washer, the second elastic member 520 may be sleeved on the outer periphery of the rod 120 .

[0105] Please continue reading Figure 10 The threaded connection structure further includes a third elastic member 530 , which is disposed between the third substrate 410 c and the member to be connected 21 and is configured to provide an elastic force to the third gasket 400 c away from the member to be connected 21 .

[0106] In the embodiment of the present application, the third elastic member 530 is disposed between the third substrate 410 c and the piston 200 .

[0107] It can be understood that the third elastic member 530 is pressed between the third gasket 400c and the part to be connected 21. On the one hand, the elastic force provided by the third elastic member 530 can make the third gasket 400c close to the second gasket 400b, thereby making the multiple first wedge-shaped protrusions 111 on the second gasket 400b and the multiple second wedge-shaped protrusions 420 on the third gasket 400c remain coupled to form a stop, further increasing the loosening torque; on the other hand, the elastic force provided by the third elastic member 530 can keep the part to be connected 21 in a tightened state, thereby increasing the loosening torque of the fastener 100 and preventing the fastener 100 from loosening.

[0108] In one embodiment, the third elastic member 530 may be a spring or an elastic washer, but the present invention is not limited thereto. When the third elastic member 530 is a spring or an elastic washer, the third elastic member 530 may be sleeved on the outer periphery of the rod 120 .

[0109] It is understandable that the second elastic member 520 and the third elastic member 530 may exist at the same time or one of them may exist selectively.

[0110] In one embodiment, the number of first wedge-shaped protrusions 111 on the second gasket 400b and the number of second wedge-shaped protrusions 420 on the third gasket 400c can be the same or different. When the number of first wedge-shaped protrusions 111 on the second gasket 400b is the same as the number of second wedge-shaped protrusions 420 on the third gasket 400c, the multiple first wedge-shaped protrusions 111 are coupled to the multiple second wedge-shaped protrusions 420 in a one-to-one correspondence, and the number of corresponding first wedge-shaped protrusions 111 and second wedge-shaped protrusions 420 increases, further increasing the loosening torque and significantly reducing the attenuation of the loosening torque during vibration.

[0111] like Figure 11 As shown, the present application also provides a four-way valve, which includes the threaded connection structure of any of the above embodiments. Since it includes the threaded connection structure of any of the above embodiments, the four-way valve of the present application embodiment has all the advantages and beneficial effects of any of the above embodiments, which will not be repeated here.

[0112] In summary, the threaded connection structure and the four-way valve of the embodiment of the present application have at least the following advantages and

[0113] Beneficial effects:

[0114] In the threaded connection structure and four-way valve of the embodiment of the present application, after the first component 10 and the second component 20 are threadedly connected, the multiple first wedge-shaped protrusions 111 are coupled with the multiple second wedge-shaped protrusions 420. When the threaded connection structure is subjected to large vibrations, the threaded structure tends to rotate in the loosening direction. Because the multiple first wedge-shaped protrusions 111 are coupled with the multiple second wedge-shaped protrusions 420, and the second wedge-shaped protrusions 420 can stop the first wedge-shaped protrusions 111 when the threaded structure is loosened, the second wedge-shaped protrusions 420 of the second component 20 can limit the rotation of the first component 10, thereby significantly increasing the loosening torque of the threaded structure and reducing the attenuation of the loosening torque during vibration, thereby ensuring the secure connection of the threaded connection structure.

[0115] It is understandable that the various embodiments / implementations provided in this application can be combined with each other without causing any contradiction, and they will not be illustrated one by one here.

[0116] In the application examples, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the application examples can be understood according to the specific circumstances.

[0117] In the description of the application embodiments, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the application embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the application embodiments.

[0118] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the claimed invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0119] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A threaded connection structure, characterized in that: include: A first component having a plurality of first wedge-shaped protrusions; as well as A second component has a plurality of second wedge-shaped protrusions, and the first component and the second component are connected via a threaded structure; Wherein, the plurality of first wedge-shaped protrusions and the plurality of second wedge-shaped protrusions are arranged along the circumference of the thread structure, and the corresponding first wedge-shaped protrusions are coupled with the second wedge-shaped protrusions.

2. The threaded connection structure according to claim 1, wherein: The first wedge-shaped protrusion has a first helical surface, the second wedge-shaped protrusion has a second helical surface, and the first helical surface is in contact with the second helical surface.

3. The threaded connection structure according to claim 2, wherein: The first helical surface, the second helical surface and the helical line of the thread structure have the same rotation direction.

4. The threaded connection structure according to claim 1, wherein: The number of the first wedge-shaped protrusions is the same as the number of the second wedge-shaped protrusions, and the plurality of first wedge-shaped protrusions are coupled with the plurality of second wedge-shaped protrusions in a one-to-one correspondence.

5. The threaded connection structure according to claim 4, characterized in that: Each of the first wedge-shaped protrusions has a first tip and a first thick end; along the circumference of the thread structure, the first tips and the first thick ends of two adjacent first wedge-shaped protrusions are connected; Each of the second wedge-shaped protrusions has a second pointed end and a second thick end; Along the circumference of the thread structure, adjacent second tips and second thick ends of two adjacent second wedge-shaped protrusions are connected.

6. The threaded connection structure according to claim 1, wherein: The first wedge-shaped protrusion and the second wedge-shaped protrusion extend along the circumference of the thread structure.

7. The threaded connection structure according to any one of claims 1 to 6, characterized in that: The first component includes a cap portion and a rod portion connected to each other, a surface of the cap portion connected to the rod portion is provided with a plurality of first wedge-shaped protrusions, and the plurality of first wedge-shaped protrusions surround the outer circumference of the rod portion; The second component includes a first gasket and a to-be-connected member, the first gasket includes a first substrate and a plurality of second wedge-shaped protrusions, the first substrate has a first through hole, the first through hole passes through the first substrate, and the plurality of second wedge-shaped protrusions are protruding from a surface of the first substrate facing the cap portion and surrounding a periphery of the first through hole; The second wedge-shaped protrusion is used to stop the first wedge-shaped protrusion when the threaded structure is loosened; The rod passes through the first through hole and is connected to the component to be connected via the threaded structure.

8. The threaded connection structure according to claim 7, wherein: The invention further comprises a first elastic member, which is arranged between the first substrate and the member to be connected and is used to provide an elastic force to the first gasket away from the member to be connected.

9. The threaded connection structure according to claim 7, wherein: The components to be connected include a first component and a second component, the first component has a through hole corresponding to the position of the first via hole, and the through hole passes through the first component; The rod passes through the through hole and is connected to the second sub-component via a threaded structure.

10. The threaded connection structure according to any one of claims 1 to 6, characterized in that: The first component includes a fastener and a second gasket, and the second component includes a third gasket and a part to be connected; The second gasket includes a second substrate and a plurality of the first wedge-shaped protrusions. The third gasket includes a third substrate and a plurality of the second wedge-shaped protrusions. The second substrate has a second via hole that passes through the second substrate. The third substrate has a third via hole that passes through the third substrate. The second substrate and the third substrate are respectively provided with a plurality of the first wedge-shaped protrusions and a plurality of the second wedge-shaped protrusions on facing surfaces. The plurality of the first wedge-shaped protrusions surround the periphery of the second via hole, and the plurality of the second wedge-shaped protrusions surround the periphery of the third via hole. The fastener passes through the second through hole and the third through hole, and is connected to the to-be-connected member via the threaded structure.

11. The threaded connection structure according to claim 10, wherein: The invention further comprises a third elastic member, which is arranged between the third substrate and the member to be connected and is used to provide an elastic force to the third gasket away from the member to be connected.

12. The threaded connection structure according to claim 10, wherein: The fastener includes a cap portion and a rod portion connected to each other, the cap portion is provided on a side of the second gasket facing away from the third gasket, the rod portion passes through the second through hole and the third through hole, and is connected to the to-be-connected member via the threaded structure; The threaded connection structure further includes a second elastic member, which is provided between the cap portion and the second base plate and is used to provide an elastic force to the fastener away from the member to be connected.

13. The threaded connection structure according to claim 10, wherein: The components to be connected include a first component and a second component, the first component has a through hole corresponding to the position of the second through hole and the third through hole, and the through hole passes through the first component; The fastener passes through the through hole and is connected to the second sub-component via a threaded structure.

14. A four-way valve, characterized in that: The invention comprises the threaded connection structure according to any one of claims 1 to 13.

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