Valve device

Abstract

The valve device comprises a valve body and a fixing seat, a valve cavity is formed in the valve body, the valve body comprises an opening end, a mounting hole is formed in the opening end, and the mounting hole is communicated with the valve cavity; at least part of the fixing seat extends into the valve cavity from the mounting hole, and the fixing seat can rotate in the forward direction or the reverse direction relative to the valve body; at least two first groove parts are formed in the end face of the open end, at least two positioning blocks are arranged on the periphery of the fixed seat, and the positioning blocks correspond to the first groove parts; the first groove part comprises a first abutting part, the positioning block can extend into the first groove part, and the first abutting part can abut against the positioning block; a notch is formed in one side of the first groove part, and the positioning block can be clamped into the notch. The device is reasonable in design, simple in structure and convenient to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to the field of fluid control technology, and more specifically, to a valve device. Background Technology

[0002] In the inlet valve of a wall-hung boiler's water circuit products, a functional component is typically installed from the outside of the valve body to give the valve a specific function. This functional component usually has a mounting base for support. During installation, the functional component extends through an opening in the valve body, and the mounting base needs to be fixed at the opening to connect and secure the functional component to the valve body, sealing the opening. Currently, in most valve products, the mounting base and valve body are usually fixed with auxiliary parts, resulting in numerous components, inconvenient disassembly and assembly, and relatively high costs. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a valve device that is reasonably designed, has a simple structure, and is easy to disassemble and assemble.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A valve device includes a valve body and a fixed seat. The valve body has a valve cavity and an open end with a mounting hole that communicates with the valve cavity. The fixed seat extends at least partially into the valve cavity from the mounting hole and is rotatable relative to the valve body in either the forward or reverse direction.

[0006] At least two first grooves are provided on the end face of the opening end, and at least two positioning blocks are provided on the outer periphery of the fixing seat. The positioning blocks correspond to the first grooves. The first groove includes a first abutting part, which can abut against the positioning block. A notch is provided on one side of the first groove, and the positioning block can be inserted into the notch.

[0007] In this solution, the valve body and the fixed seat are connected and fixed by a rotation snap-fit ​​method, which reduces the auxiliary parts of the connection, simplifies the fixing structure, ensures accurate and reliable installation and positioning, and facilitates easy disassembly and assembly. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of a valve device in this embodiment. Figure 1 ;

[0009] Figure 2 This is a schematic diagram of the structure of a valve device in this embodiment. Figure 2 ;

[0010] Figure 3 This is a schematic diagram of the structure of a valve device in this embodiment. Figure 3 ;

[0011] Figure 4 This is a cross-sectional view of a valve device in this embodiment. Figure 1 ;

[0012] Figure 5 This is a cross-sectional view of a valve device in this embodiment. Figure 2 ;

[0013] Figure 6 This is a cross-sectional view of a valve device in this embodiment. Figure 3 ;

[0014] Figure 7 This is a schematic diagram of the valve body in this embodiment;

[0015] Figure 8 for Figure 7 Enlarged view of a portion of the image;

[0016] Figure 9 This is a schematic diagram of the structure of the open end of the valve body in this embodiment;

[0017] Figure 10 This is a schematic diagram of the structure of the fixed base in this embodiment.

[0018] Reference numerals: 1. Valve body; 2. Open end; 21. Mounting hole; 22. End face; 3. First groove; 31. First abutment part; 4. Second groove; 41. Second abutment part; 5. Notch; 51. Third abutment part; 52. Fourth abutment part; 53. Fifth abutment part; 6. Fixed seat; 61. Positioning block; 62. Rotary handle. Detailed Implementation

[0019] The technical solutions of the embodiments 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, and 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.

[0020] This embodiment discloses a valve device, with reference to... Figure 1-3 As shown, the device includes a valve body 1 and a mounting seat 6. The valve body 1 has a hollow structure and a valve cavity inside. The valve body 1 includes an open end 2, and a mounting hole 21 is provided at the open end 2. The mounting hole 21 communicates with the valve cavity inside the valve body 1. The mounting seat 6 and other components can be installed into the valve body 1 through the mounting hole 21.

[0021] The mounting hole 21 of the valve body 1 is approximately circular. The shape of a portion of the fixing seat 6 is adapted to the shape of the mounting hole 21, and a portion of the fixing seat 6 can extend into the valve cavity through the mounting hole 21. After the fixing seat 6 is installed in the valve body 1, the fixing seat 6 can rotate relative to the valve body 1 in the forward or reverse direction.

[0022] When the fixed seat 6 rotates in the positive direction, it can engage with the valve body 1, achieving axial and circumferential positioning between the fixed seat 6 and the valve body 1, and connecting the fixed seat 6 and the valve body 1. When disassembling the fixed seat 6 and the valve body 1, the fixed seat 6 rotates in the opposite direction, the engagement structure between the fixed seat 6 and the valve body 1 is released, and the fixed seat 6 can be removed from the valve body 1.

[0023] Reference Figure 4-6 As shown, at least two first grooves 3 are provided at the end face 22 of the opening end 2. Several positioning blocks 61 are provided on the outer periphery of the fixing seat 6. The positioning blocks 61 correspond to the first grooves 3. The fixing seat 6 and the valve body 1 are locked together by the positioning blocks 61. The number of first grooves 3 and positioning blocks 61 can be set to two sets and are centrally symmetrically distributed, so as to form two evenly positioned locking points in the circumferential direction, thereby maintaining the locking stability of the fixing seat 6.

[0024] Reference Figure 1-4 As shown, the first groove 3 extends along the axial direction of the mounting hole 21 and has a certain depth. The first groove 3 is open to one side facing the inner periphery of the mounting hole 21. A first abutting part 31 is formed at the bottom of the first groove 3, and the first abutting part 31 faces the opening end 2.

[0025] The shape of the positioning block 61 is adapted to the shape of the first groove 3, and its circumferential width is slightly smaller than the width of the first groove 3. As the fixing seat 6 extends into the mounting hole 21, each positioning block 61 is simultaneously embedded in each of the first grooves 3, extending along the axial direction of the mounting hole 21 to the bottom of the first groove 3, until the positioning block 61 abuts against the first abutting part 31, thereby achieving axial positioning of the fixing seat 6 and the valve body 1.

[0026] In the valve body 1, a notch 5 is machined on the side of the first groove 3 that rotates in the positive direction. Alternatively, the notch 5 can also be provided on the side of the first groove 3 that rotates in the opposite direction, in which case the rotational directions for engaging and disengaging the fixing seat 6 from the valve body 1 will be opposite. This embodiment will provide a detailed description of one such direction.

[0027] In the axial direction of the mounting hole 21, the size of the notch 5 is matched with the size of the positioning block 61. When the fixing seat 6 rotates in the positive rotation direction, the positioning block 61 can be engaged in the notch 5 to achieve a locking, restricting the bidirectional axial movement of the fixing seat 6 and preventing the fixing seat 6 from being pulled out of the mounting hole 21.

[0028] A fifth abutment 53 is formed on the inner sidewall of the notch 5. The fifth abutment 53 faces the first groove 3. The positioning block 61 is inserted into the notch 5. After a certain rotation range is reached, the fifth abutment 53 can abut against the positioning block 61 to control the range of circumferential rotation of the positioning block 61 and achieve circumferential positioning.

[0029] In addition, the fifth abutment part 53 is positioned to pass through the valve body 1, forming a through hole that passes through the inside and outside of the valve body 1. Through the through hole, it is possible to observe whether the positioning block 61 is fully inserted into the notch 5 and whether the positioning block 61 abuts against the fifth abutment part 53, which facilitates the inspection of the assembly.

[0030] Reference Figure 8 As shown, in the valve body 1, the notch 5 has a third abutment portion 51, which faces the opening and is flush with the first abutment portion 31, forming a smooth transition between the notch 5 and the first groove 3. When the positioning block 61 rotates in the positive direction, the positioning block 61 can smoothly enter the notch 5 along the first abutment portion 31.

[0031] The notch 5 also has a fourth abutment portion 52, which faces away from the opening. This means the third abutment portion 51 and the fourth abutment portion 52 are in a relative position. The distance between the third abutment portion 51 and the fourth abutment portion 52 is the axial width of the notch 5. The axial width of the positioning block 61 matches the axial width of the notch 5, allowing the positioning block 61 to engage within the notch 5. After the positioning block 61 engages with the notch 5, the fourth abutment portion 52 and the third abutment portion 51 can respectively abut against the positioning block 61, achieving bidirectional axial positioning of the positioning block 61 to maintain the relative position between the positioning block 61 and the valve body 1.

[0032] Reference Figure 7 , 8 As shown, the end face 22 of the open end 2 has several second grooves 4, which correspond to the first grooves 3. Furthermore, the second grooves 4 and the notches 5 are located on both sides of the first grooves 3. Since the notches 5 are located on the side of the forward rotation direction, the second grooves 4 are located on the side of the reverse rotation direction.

[0033] The second groove 4 opens towards the inner periphery of the mounting hole 21 and towards the outer periphery of the valve body 1, forming a through groove on the outer side of the valve body 1. Furthermore, the first groove 3 opens towards the second groove 4, creating a connection between them. When the positioning block 61, which extends into the first groove 3, rotates in the opposite direction, it can rotate into the second groove 4.

[0034] In the axial direction of the mounting hole 21, both the first groove 3 and the second groove 4 have a certain depth, and the depth of the second groove 4 is greater than the depth of the first groove 3. That is, the distance between the bottom surface of the second groove 4 and the end face 22 of the opening end 2 is greater than the distance between the bottom surface of the first groove 3 and the end face 22 of the opening end 2.

[0035] A second abutting portion 41 is formed at the bottom surface of the second groove 4, and the second abutting portion 41 faces the opening end 2. A step difference is formed between the first abutting portion 31 of the first groove 3 and the second abutting portion 41 of the second groove 4, and the second abutting portion 41 is recessed relative to the first abutting portion 31.

[0036] When the fixed seat 6 rotates in the opposite direction, the positioning block 61 enters the second groove 4. The positioning block 61 will be fixed to the position of the second abutment 41 along the position of the first abutment 31. Since there is a step difference between the first abutment 31 and the second abutment 41, a certain gap is formed between the second abutment 41 and the positioning block 61.

[0037] During the disassembly of the fixed seat 6, the fixed seat 6 can be rotated in the reverse direction to move the positioning block 61 on the outer periphery of the fixed seat 6 to the second groove 4. The gap between the second abutment part 41 and the positioning block 61 can be pried open with a tool, thereby pushing the fixed seat 6 axially, so that the fixed seat 6 can be separated from the valve body 1 in the axial direction, thus realizing the disassembly of the fixed seat 6 from the valve body 1. The height difference between the first groove 3 and the second groove 4 can form a gap that allows a tool to be inserted, thereby allowing the base to be pried open with a tool, so that the fixed seat 6 can be separated from the valve body 1.

[0038] Furthermore, the shape of the positioning block 61 is misaligned with the shape of the second groove 4. When the positioning block 61 is inserted into the first groove 3, the positioning block 61 cannot be fully inserted into the second groove 4, ensuring that part of the positioning block 61 will definitely abut against the first abutment 31. This allows the insertion depth of the positioning block 61 to be determined, ensuring that a prying gap can always be formed between the second abutment and the positioning block 61, facilitating the disassembly of the fixing seat 6.

[0039] Furthermore, if a seal is required at the connection between the valve body 1 and the fixed seat 6, an O-ring can be installed between them for sealing. For example, a sealing groove can be made on the outer periphery of the fixed seat 6 extending into the mounting hole 21, and the O-ring can be embedded into the sealing groove to achieve a seal at the connection between the valve body 1 and the fixed seat 6.

[0040] Because an O-ring is installed between the mounting base 6 and the mounting hole 21, and the O-ring has a certain frictional resistance, the mounting base 6 may not be able to be disassembled by hand during the disassembly process of the valve body 1. The shape of the opening of the valve body 1 can be further designed to improve the ease of disassembly of the mounting base 6.

[0041] To facilitate the assembly and disassembly of the fixed seat 6, a rotating handle 62 is provided at the end of the fixed seat 6 facing away from the valve body 1. The rotating handle 62 can be exposed outside the valve body 1. By rotating the handle 62, the fixed seat 6 can be clamped, thereby facilitating the rotation operation of the fixed seat 6.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A valve device, characterized in that: The invention comprises a valve body (1) and a fixing seat (6), wherein a valve cavity is arranged in the valve body (1), the valve body (1) comprises an opening end (2), a mounting hole (21) is provided in the opening end (2), and the mounting hole (21) is connected to the valve cavity; the fixing seat (6) at least partially extends into the valve cavity from the mounting hole (21), and the fixing seat (6) can rotate in a positive direction or a negative direction relative to the valve body (1); The end surface (22) of the open end (2) is provided with at least two first grooves (3); the outer periphery of the fixing seat (6) is provided with at least two positioning blocks (61), and the positioning blocks (61) correspond to the first grooves (3); the first grooves (3) include a first abutting portion (31), and the first abutting portion (31) can abut against the positioning blocks (61); a notch (5) is provided on one side of the first groove (3), and the positioning blocks (61) can be inserted into the notch (5).

2. The valve device according to claim 1, characterized in that The end surface (22) of the opening end (2) is provided with a plurality of second grooves (4), the second grooves (4) corresponding to the first grooves (3), and the second grooves (4) are located on the side of the first grooves (3) in the reverse rotation direction; the second grooves (4) are open toward the side of the inner periphery of the mounting hole (21), the second grooves (4) are open toward the side of the outer periphery of the valve body (1), and the first grooves (3) are open toward the side of the second grooves (4); The second groove portion (4) comprises a second abutting portion (41), the distance between the second abutting portion (41) and the opening end (2) is greater than the distance between the first abutting portion (31) and the opening end (2), the positioning block (61) extends into the second groove portion (4), and a gap is formed between the second abutting portion (41) and the positioning block (61).

3. The valve device according to claim 2, characterized in that The shape of the positioning block (61) and the shape of the second groove portion (4) are offset from each other.

4. The valve device according to claim 1, characterized in that The notch (5) comprises a third abutment portion (51), the third abutment portion (51) faces the direction of the opening end (2), and the third abutment portion (51) is flush with the first abutment portion (31).

5. The valve device according to claim 4, characterized in that The notch (5) comprises a fourth abutment portion (52), the fourth abutment portion (52) faces away from the direction of the opening end (2), and the fourth abutment portion (52) and the third abutment portion (51) respectively abut against the positioning block (61), thereby achieving axial limitation of the positioning block (61).

6. The valve device according to claim 1, characterized in that The notch (5) comprises a fifth abutment portion (53), the fifth abutment portion (53) faces the direction of the first groove portion (3), and the fifth abutment portion (53) can abut against the positioning block (61) to achieve circumferential limiting of the positioning block (61).

7. The valve device according to claim 1, characterized in that The notch (5) is connected to the valve body (1) at a position close to the fifth abutment portion (53).

8. The valve device according to claim 1, characterized in that The mounting hole (21) is a circular hole, and the portion of the fixing seat (6) extending into the mounting hole (21) is adapted to fit the mounting hole (21).

9. The valve device according to claim 1, characterized in that The fixing seat (6) and the mounting hole (21) are sealed via an O-ring, a sealing groove is provided on the outer periphery of the fixing seat (6), and the O-ring is arranged in the sealing groove.

10. The valve device according to claim 1, characterized in that A rotating handle (62) is fixed to one end of the fixing seat (6) which faces away from the mounting hole (21).

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