Fluid control device

Abstract

The fluid control device comprises a bottom plate, a control valve, a first fixing piece, a second fixing piece and a limiting piece, the bottom plate is provided with a mounting groove, the first fixing piece is arranged in the mounting groove, at least part of the limiting piece is limited in the mounting groove, and the limiting piece and the first fixing piece are arranged in the extending direction of the mounting groove. The limiting piece at least limits the freedom degree of the first fixing piece in the extending direction of the mounting groove, namely, the limiting piece limits the first fixing piece, compared with the background technology, the accurate position of the first fixing piece in the mounting groove can be conveniently positioned, the second fixing piece and the first fixing piece can be conveniently matched during assembling, and the assembling efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of pneumatic components, and particularly to a fluid control device. Background Technology

[0002] In the pneumatic field, fluid control devices such as valve islands and integrated valves typically include a manifold base plate and a control valve. In existing technology, the manifold base plate has a mounting groove containing a nut, and the control valve is secured to the manifold base plate by the engagement of the bolt and nut. The drawback of this existing technology is the difficulty in accurately positioning the nut within the mounting groove, increasing the difficulty of assembling the bolt and nut, and reducing production efficiency. Summary of the Invention

[0003] This invention provides a fluid control device that is easier to assemble and has higher production efficiency.

[0004] A fluid control device includes a base plate, a control valve, a first fixing member and a second fixing member. The base plate is provided with a mounting groove, the first fixing member is disposed in the mounting groove, the second fixing member passes through the control valve, and the second fixing member is mechanically engaged with the first fixing member. The fluid control device also includes a limiting member, at least a portion of which is confined within the mounting groove. The limiting member and the first fixing member are arranged along the extension direction of the mounting groove, and the limiting member at least restricts the degree of freedom of the first fixing member in the extension direction of the mounting groove.

[0005] The fluid control device of this application arranges a limiting member and a first fixing member along the extension direction of the mounting groove. The limiting member at least restricts the degree of freedom of the first fixing member in the extension direction of the mounting groove, that is, the limiting member limits the first fixing member. Compared with the prior art, it can conveniently locate the accurate position of the first fixing member in the mounting groove, which facilitates the cooperation between the second fixing member and the first fixing member during assembly and helps to improve assembly efficiency. Attached Figure Description

[0006] Figure 1 This is a three-dimensional schematic diagram of a fluid control device provided by the present invention.

[0007] Figure 2 yes Figure 1 A side view diagram.

[0008] Figure 3 yes Figure 2 Cross-sectional view along the AA direction.

[0009] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0010] Figure 5 This is a schematic cross-sectional view of a fluid control device provided by the present invention.

[0011] Figure 6 yes Figure 5 Enlarged diagram of point B in the middle.

[0012] Figure 7 This is an exploded schematic diagram of a fluid control device provided by the present invention.

[0013] Figure 8 yes Figure 7 Enlarged diagram of point C in the middle.

[0014] Figure 9 This is a three-dimensional schematic diagram of the base plate of a fluid control device provided by the present invention.

[0015] Figure 10 yes Figure 9 Enlarged diagram of point D in the middle.

[0016] Figure 11 This is a three-dimensional schematic diagram of a limiting component of a fluid control device provided by the present invention.

[0017] Figure label: 1. Base plate; 1a. First end; 1b. Second end; 11. Mounting slot; 11a, First groove; 111a, First port; 11b, Second groove; 111b, Second port; 111. Bottom wall of the tank; 112. Tank sidewall; 113. Supporting part; 1131. First supporting surface; 114. Limiting protrusion; 1141. Second supporting surface; 1142. Guide slope; 115. Gap; 12. Positioning holes; 13. Limiting part; 131. Second limiting end; 14. Operating space; 141. Operation port; 2. Control valve; 3. First fastener; 4. Second fastener; 5. Limiting components; 51. First limiting end; 511. The First Wall; 512. The second wall; 52. Operations Unit; 53. Main body. Detailed Implementation

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] See Figures 1 to 11 The present invention provides a fluid control device, including a base plate 1, a control valve 2, a first fixing member 3 and a second fixing member 4. The base plate 1 is provided with a mounting groove 11, the first fixing member 3 is disposed in the mounting groove 11, and the second fixing member 4 passes through the control valve 2. The second fixing member 4 and the first fixing member 3 are mechanically cooperated to assemble or integrate the control valve 2 onto the base plate 1.

[0021] The base plate 1 is provided with a positioning hole 12 corresponding to the second fixing member 4. The positioning hole 12 penetrates the bottom wall 111 of the mounting groove 11. The second fixing member 4 passes through the positioning hole 12 and is mechanically engaged with the first fixing member 3.

[0022] In this application, mechanical fit means that the first fixing member 3 and the second fixing member 4 can fit together and form a mechanical connection.

[0023] In one embodiment, the first fixing member 3 can be a nut, and the second fixing member 4 can be a bolt or screw adapted to the nut. The nut is disposed in the mounting groove 11, and the bolt or screw passes through the control valve 2, and the bolt or screw is threadedly connected to the nut (in this embodiment, the threaded connection is a mechanical fit), so that the control valve 2 is fixed to the base plate 1. When the bolt or screw is installed to the nut, the positioning hole 12 can limit the bolt or screw, preventing the bolt or screw from deviating from the nut.

[0024] In another embodiment, the first fixing member 3 can be a snap ring, and the second fixing member 4 can be a fixing pin. The snap ring is disposed in the mounting groove 11, and the fixing pin passes through the control valve 2. The fixing pin is engaged and fixed with the snap ring (in this embodiment, the engagement and fixing is a mechanical fit), so that the control valve 2 is fixed to the base plate 1.

[0025] Of course, in other embodiments, the first fastener 3 and / or the second fastener 4 may also be other types of components, which will not be elaborated here.

[0026] See Figures 1 to 11 The fluid control device provided by the present invention further includes a limiting member 5, at least a portion of which is limited in the mounting groove 11. The limiting member 5 and the first fixing member 3 are arranged along the extension direction of the mounting groove 11. The limiting member 5 at least restricts the degree of freedom of the first fixing member 3 in the extension direction of the mounting groove 11.

[0027] The extension direction of the mounting groove 11 is defined as the first direction of the base plate 1, that is, the mounting groove 11 extends along the first direction of the base plate 1, and the limiting member 5 restricts at least one degree of freedom of the first fixing member 3 in the first direction. In this way, the first fixing member 3 can be limited by at least one degree of freedom in the first direction by the limiting member 5, which is beneficial to accurately positioning the first fixing member 3 in the mounting groove 11, so as to facilitate the cooperation between the second fixing member 4 and the first fixing member 3.

[0028] The limiting member 5 is at least partially located within the mounting groove 11. In the first direction, the limiting member 5 has a first limiting end 51 that abuts against the first fixing member 3. The contour surface of the first limiting end 51 is adapted to the contour surface of the outer peripheral wall of the first fixing member 3. With the help of the first limiting end 51, the limiting member 5 can more accurately position the first fixing member 3 in the mounting groove 11.

[0029] See Figure 3 , Figure 4 , Figure 7 and Figure 11 In this embodiment, the first fixing member 3 is a hexagonal nut, and the contour surface of the first limiting end 51 is a "V" shape adapted to the outer peripheral wall of the hexagonal nut. Preferably, the wall of the contour surface of the first limiting end 51 includes a first wall 511 and a second wall 512, and the included angle between the first wall 511 and the second wall 512 is 120°. Thus, when the hexagonal nut is placed in the mounting groove 11, the first wall 511 and the second wall 512 can fit against the outer peripheral wall of the hexagonal nut, and the positioning accuracy of the limiting member 5 for the hexagonal nut is higher. In addition, in other embodiments, the first fixing member 3 can also be a square nut, and the contour surface of the first limiting end 51 can be a plane perpendicular to the first direction.

[0030] See Figures 1 to 4 In the first direction, the base plate 1 has two opposite ends, namely a first end 1a and a second end 1b. The mounting groove 11 has at least one port, with at least one port located at the corresponding end of the base plate 1. The first fixing member 3 and the limiting member 5 can be inserted into the mounting groove 11 through at least one port. The port facilitates the insertion of the first fixing member 3 and the limiting member 5 into the mounting groove 11, thereby improving assembly efficiency.

[0031] When there are two or more first fasteners 3, if the mounting groove 11 has only one port, all the first fasteners 3 need to be inserted into the mounting groove 11 through that port, which may affect the assembly efficiency to some extent. Therefore, in one embodiment, in the first direction, the mounting groove 11 extends through the opposite ends of the base plate 1, that is, the mounting groove 11 has two ports, one port located at the first end 1a and the other port located at the second end 1b. In this way, the first fasteners 3 can be inserted into the mounting groove 11 from both ports respectively.

[0032] See Figure 3 and Figure 4 In this embodiment, the mounting groove 11 includes a first groove portion 11a and a second groove portion 11b, which are arranged along a first direction. The first groove portion 11a has a first port 111a, and the second groove portion 11b has a second port 111b. The first port 111a and the second port 111b are located at opposite ends of the base plate 1 along the first direction, respectively, wherein the first port 111a is located at the first end 1a, and the second port 111b is located at the second end 1a. A limiting portion 13 is provided between the first groove portion 11a and the second groove portion 11b, which at least restricts the degree of freedom of the first fixing member 3 in the extending direction of the mounting groove 11.

[0033] When there are multiple first fasteners 3, some of the first fasteners 3 are sequentially inserted into the first groove 11a through the first port 111a, and the remaining first fasteners 3 are sequentially inserted into the second groove 11b through the second port 111b. The limiting part 13 can provide a positioning reference for the first fasteners 3 and can effectively reduce cumulative tolerances and improve the positional accuracy of the first fasteners 3. According to the insertion order of the first fasteners 3, in the first groove 11a, the first first fastener 3 inserted into the first groove 11a is stopped and limited by the limiting part 13, so that the first fastener 3 is positioned in the accurate position of the first groove 11a. Similarly, in the second groove 11b, the first first fastener 3 inserted into the second groove 11b is also stopped and limited by the limiting part 13, so that the first fastener 3 is positioned in the accurate position of the second groove 11b.

[0034] The limiting part 13 has a second limiting end 131 that abuts against the first fixing member 3, and the contour surface of the second limiting end 131 is adapted to the contour surface of the outer peripheral wall of the first fixing member 3. The implementation of the second limiting end 131 can be referred to the first limiting end 51 described above, and will not be repeated here.

[0035] See Figures 7 to 10 The mounting groove 11 includes a bottom wall 111, two opposing side walls 112, and at least one support portion 113. The support portion 113 is disposed on the side wall 112 and extends along a first direction. The support portion 113 has a first support surface 1131 opposite to the bottom wall 111. On the projection plane of the mounting groove 11 along the first direction, the bottom wall 111 is closer to the control valve 2 than the first support surface 1131. The mounting space of the mounting groove 11 is located inside the bottom wall 111, the side walls 112, and the first support surface 1131. The first fixing member 3 and the limiting member 5 are inserted into the mounting space of the mounting groove 11 through the aforementioned port. The support portion 113 can effectively support the first fixing member 3 and the limiting member 5 located in the mounting space.

[0036] The two groove sidewalls 112 and / or the limiting member 5 restrict the first fixing member 3 in the circumferential direction; and / or, the distance between the two groove sidewalls 112 is defined as the width of the mounting groove 11, and the two groove sidewalls 112 and / or the limiting member 5 restrict the first fixing member 3 in the width direction of the mounting groove 11.

[0037] In this embodiment, the first fixing member 3 is a hexagonal nut, and the second fixing member 4 is a bolt adapted to the hexagonal nut. The two opposing circumferential sidewalls of the hexagonal nut are limited by two groove sidewalls 112, and the two adjacent circumferential sidewalls of the hexagonal nut are limited by the first limiting end 51 of the limiting member 5. This ensures that both the two groove sidewalls 112 and the limiting member 5 restrict the first fixing member 3's degree of freedom in the circumferential direction, as well as its degree of freedom in the width direction of the mounting groove 11. Thus, when the hexagonal nut is inserted into the designated position in the mounting groove 11, the hexagonal nut will not wobble along the first direction or in the width direction of the mounting groove 11. Furthermore, during the threaded connection between the bolt and the hexagonal nut, the hexagonal nut will not rotate circumferentially.

[0038] Furthermore, the distance between the bottom wall 111 of the groove and the first supporting surface 1131 is defined as the depth of the mounting groove 11. In order to restrict the degree of freedom of the first fixing member 3 in the depth direction of the mounting groove 11, the mounting groove 11 has a limiting protrusion 114. The limiting protrusion 114 protrudes from the first supporting surface 1131 toward the bottom wall 111 of the groove. The limiting protrusion 114 extends along the first direction and has a second supporting surface 1141 opposite to the bottom wall 111 of the groove. At least a portion of the limiting member 5 and the first fixing member 3 are both disposed between the bottom wall 111 of the groove and the second supporting surface 1141. The first fixing member 3 abuts against the bottom wall 111 of the groove and the second supporting surface 1141.

[0039] Preferably, the limiting protrusion 114 is made of plastic or other material that can be deformed under pressure. The first fixing member 3 is press-fitted with the bottom wall 111 of the groove and the second supporting surface 1141. During the process of the first fixing member 3 being installed into the mounting groove 11, the first fixing member 3 squeezes the limiting protrusion 114 and causes the limiting protrusion 114 to be deformed under pressure, so that the first fixing member 3 is stably abutted against the bottom wall 111 of the groove and the second supporting surface 1141, and the first fixing member 3 is prevented from shaking in the depth direction of the mounting groove 11.

[0040] The limiting protrusion 114 has a guide slope 1142 at one end near the port. One end of the guide slope 1142 extends to the support portion 113, and the other end of the guide slope 1142 extends to the second support surface 1141. During the process of inserting the first fixing member 3 into the mounting groove 11, the guide slope 1142 can guide the first fixing member 3 to slide easily to the second support surface 1141.

[0041] See Figures 7 to 11The mounting slot 11 has two support portions 113, one of which is disposed on one side wall 112 of the slot, and the other support portion 113 is disposed on the other side wall 112 of the slot. The two support portions 113 are arranged opposite to each other, and there is a gap 115 between the two support portions 113. The limiting member 5 is provided with an operating portion 52, which may be a handle or protrusion formed or connected to the limiting member 5. The operating portion 52 extends relative to the limiting member 5 in a direction away from the bottom wall 111 of the slot. At least a portion of the operating portion 52 is located in the gap 115. The operator can conveniently control the limiting member 5 to be inserted into or removed from the mounting slot 11 through the operating portion 52. Specifically, see Figure 1 , Figure 7 , Figure 8 and Figure 11 The limiting member 5 has a main body 53 and an operating part 52. The main body 53 has a first limiting end 51, and the operating part 52 protrudes from the main body 53. The free end of the operating part 52 passes through a gap 115. The base plate 1 has an operating space 14 corresponding to the mounting groove 11. The operating space 14 extends along a first direction of the base plate 1 and communicates with the mounting space of the mounting groove 11 through the gap 115. The free end of the operating part 52 passes through the gap 115 and extends into the operating space 14. In the first direction, the operating space 14 has at least one operating port 141. The operating port 141 is located at the corresponding end of the base plate 1 and communicates with the corresponding port of the mounting groove 11. In this way, the operator can enter the operating space 14 through the operating port 141 and contact the operating part 52 located in the operating space 14. When the operator contacts the operating part 52, the operator controls the operating part 52 to move along the mounting groove 11 toward the port, thereby making it easy to remove the limiting member 5 from the mounting groove 11. Furthermore, the gap 115 between the two supporting parts 113 can also help to avoid interference between the second fixing member 4 and the supporting part 113 when the second fixing member 4 is connected to the first fixing member 3.

[0042] The above examples illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A fluid control device, comprising a base plate, a control valve, a first fixing member, and a second fixing member, characterized in that: The base plate is provided with a mounting groove, the first fixing member is disposed in the mounting groove, the second fixing member passes through the control valve, and the second fixing member is mechanically engaged with the first fixing member. The fluid control device further includes a limiting member, at least a portion of which is confined within the mounting groove. The limiting member and the first fixing member are arranged along the extending direction of the mounting groove, and the limiting member at least restricts the degree of freedom of the first fixing member in the extending direction of the mounting groove.

2. The fluid control device according to claim 1, characterized in that: The limiting member has a first limiting end that abuts against the first fixing member, and the contour surface of the first limiting end is adapted to the contour surface of the outer peripheral wall of the first fixing member.

3. The fluid control device according to claim 1, characterized in that: The mounting groove extends along a first direction of the base plate. In the first direction, the mounting groove has at least one port, and at least one port is located at the corresponding end of the base plate. The first fixing member and the limiting member can be inserted into the mounting groove through at least one port.

4. A fluid control device according to claim 3, characterized in that: In the first direction, the mounting groove extends through the opposite ends of the base plate.

5. A fluid control device according to claim 3, characterized in that: The mounting groove includes a first groove and a second groove, which are arranged along the first direction. The first groove has a first port, and the second groove has a second port. The first port and the second port are located at opposite ends of the base plate along the first direction. A limiting portion is provided between the first groove and the second groove, which at least restricts the degree of freedom of the first fastener in the extension direction of the mounting groove.

6. A fluid control device according to claim 5, characterized in that: The limiting part has a second limiting end that abuts against the first fixing member, and the contour surface of the second limiting end is adapted to the contour surface of the outer peripheral wall of the first fixing member.

7. A fluid control device according to any one of claims 3 to 6, characterized in that: The mounting groove includes a bottom wall, two oppositely arranged side walls, and at least one support portion. The at least one support portion is disposed on the side wall and extends along the first direction. The support portion has a first support surface opposite to the bottom wall. The mounting space of the mounting groove is located inside the bottom wall, the side walls, and the first support surface.

8. A fluid control device according to claim 7, characterized in that: The two groove sidewalls and / or the limiting members restrict the first fixing member's degree of freedom in the circumferential direction; And / or, the distance between the two sidewalls of the groove is defined as the width of the mounting groove, and the two sidewalls of the groove and / or the limiting member restricts the degree of freedom of the first fixing member in the width direction of the mounting groove.

9. A fluid control device according to claim 7, characterized in that: The mounting groove has a limiting protrusion that protrudes from the first support surface to the bottom wall of the groove and extends along the first direction. The limiting protrusion has a second support surface opposite to the bottom wall of the groove. At least a portion of the limiting member and the first fixing member are both disposed between the bottom wall of the groove and the second support surface. At least a portion of the first fixing member abuts against the bottom wall of the groove and the second support surface.

10. A fluid control device according to claim 9, characterized in that: The limiting protrusion has a guide slope at one end near the port, one end of the guide slope extends to the support portion, and the other end of the guide slope extends to the second support surface.

11. A fluid control device according to claim 7, characterized in that: The mounting groove has two supporting parts, one of which is disposed on one side wall of the groove, and the two supporting parts are disposed opposite to each other with a gap between them. The limiting member is provided with an operating part, at least a portion of which is located in the gap.

12. A fluid control device according to claim 1, characterized in that: The base plate is provided with a positioning hole corresponding to the second fixing member. The positioning hole penetrates the bottom wall of the mounting groove. The second fixing member passes through the positioning hole and is mechanically engaged with the first fixing member.

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