Self-closing valve press sealing device

Abstract

The utility model provides a self-closing valve press sealing device, and relates to the technical field of gas accessories. According to the scheme, the self-closing valve pressing and sealing device comprises a mold frame bottom plate, a mold frame top plate, a supporting assembly, a first mold, a second mold and a driving assembly. A supporting assembly is installed between the formwork bottom plate and the formwork top plate. The first mold is installed on the mold frame bottom plate and provided with a positioning groove used for positioning the self-closing valve. The driving assembly is mounted on the mold frame top plate, connected with the second mold and capable of driving the second mold to reciprocate towards the first mold; the second die is provided with a matching groove used for being matched with the self-closing valve, the second die is provided with a press sealing groove used for pressing and sealing the sealing ring, and the press sealing groove is located at the edge of the matching groove. According to the utility model, the self-closing valve has the anti-dismounting capability, the sealing performance is excellent, and the product is beautiful.

Description

Technical Field

[0001] The utility model relates to the technical field of gas accessories, in particular to a self-closing valve pressure sealing device. Background Art

[0002] The pipeline gas self-closing valve, referred to as the self-closing valve, is a safety device installed on the gas pipeline. When the pressure in the pipeline exceeds or falls below the set value, the valve will automatically close and cut off the gas supply. This valve can effectively prevent accidents such as fires and explosions caused by gas leaks and pipeline ruptures. Installing a self-closing valve can cut off the gas supply in the first place, avoid accidents, and ensure personal safety.

[0003] With the development of industrial automation, the requirements for product quality and production efficiency are increasing day by day. As a gas control product, it must ensure safe use. Self-closing valves cannot be disassembled at will by any personnel in the use environment to avoid product leakage and affect safety. In the existing self-closing valves, the valve cover and the valve body are connected by bolts. The valve cover and the valve body are easy to disassemble, and it is difficult to ensure safety in the use place. Utility Model Content

[0004] The utility model aims to provide a self-closing valve pressure sealing device, which can propose solutions to the deficiencies of the prior art, and can make the self-closing valve have the ability of anti-disassembly, excellent sealing performance and beautiful product.

[0005] The utility model is realized by the following technical solutions:

[0006] The self-closing valve pressure-sealing device comprises a mold frame bottom plate, a mold frame top plate, a support assembly, a first mold, a second mold and a driving assembly; the support assembly is installed between the mold frame bottom plate and the mold frame top plate; the first mold is installed on the mold frame bottom plate, and the first mold is provided with a positioning groove for positioning the self-closing valve; the driving assembly is installed on the mold frame top plate, the driving assembly is connected to the second mold, and the driving assembly can drive the second mold to reciprocate toward the first mold; the second mold is provided with a matching groove for adapting the self-closing valve, and the second mold is provided with a pressure-sealing groove for pressure-sealing a sealing ring, and the pressure-sealing groove is located at the edge of the matching groove.

[0007] Furthermore, in the utility model, the above-mentioned compression sealing groove includes a guiding portion with an inclined structure and a compression sealing portion with a planar structure, the guiding portion is used to bend the sealing ring, and the compression sealing portion is used to compression seal the bent sealing ring.

[0008] Furthermore, in the utility model, both sides of the second mold are provided with compression-sealing grooves, and the two compression-sealing grooves are both located at the edges of the matching groove, and the two compression-sealing grooves can completely compress and seal the sealing ring.

[0009] Further, in the utility model, a first positioning component is installed on the first mold. The first positioning component includes a positioning pin, and the positioning pin cooperates with the self-closing valve.

[0010] Further, in the utility model, a second positioning component is installed on the first mold. The first positioning component and the second positioning component are located on both sides of the positioning groove. The second positioning component includes two oppositely arranged positioning members, and the two positioning members cooperate with the self-closing valve.

[0011] Further, in the utility model, the positioning plate includes a connecting portion and an inclined positioning portion. The connecting portion is connected to the first mold, and the distance between the two positioning portions gradually increases from bottom to top.

[0012] Further, in the utility model, a fastener is also included. The connecting portion is provided with a position adjustment hole along the extending direction. The fastener can pass through the position adjustment hole to fix the connecting portion to the first mold, and the two connecting portions can move relatively to adjust the distance between the two positioning portions.

[0013] Further, in the utility model, the support component includes a plurality of support columns, and a plurality of support columns are installed between the mold base plate and the mold top plate.

[0014] Further, in the utility model, the driving component includes a boosting cylinder and a pressing and sealing shaft. The boosting cylinder is installed on the mold top plate, one end of the pressing and sealing shaft is connected to the boosting cylinder, and the other end of the pressing and sealing shaft is connected to the second mold.

[0015] Further, in the utility model, the first mold is detachably installed on the mold base plate, and the second mold is detachably installed on the driving component.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] In the self-closing valve pressing and sealing device, the upper side of the sealing ring is pressed and sealed to the edge of the valve cover, and the second sealing portion is pressed and sealed to the edge of the valve body. The valve cover and the valve body are sealed through the sealing ring; the valve body and the valve cover are tightly connected, with good sealing performance, meeting the anti-disassembly requirements in the standard. Moreover, the first mold and the second mold can accurately avoid the product during pressing and sealing, without showing excessive edges and corners, ensuring the beautiful appearance of the product. Description of the Drawings

[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation to the embodiments of the present utility model. In the drawings:

[0019] Figure 1 It is a three-dimensional view of the self-closing valve pressing and sealing device;

[0020] Figure 2 It is Figure 1Enlarged view of part A

[0021] Figure 3 Isometric view of the second mold

[0022] Figure 4 Longitudinal sectional view of the second mold

[0023] Figure 5 Exploded view of the self - closing valve

[0024] Figure 6 Sectional view of the self - closing valve

[0025] Figure 7 Schematic diagram of the installation of the second positioning component on the first mold

[0026] Markings in the attached drawings and corresponding component names: 1 - Mold base plate, 2 - Mold top plate, 3 - Support column, 4 - Second mold, 5 - First mold, 6 - Boosting cylinder, 7 - Locating pin, 8 - Locating groove, 9 - Fitting groove, 10 - Guiding part, 11 - Press - sealing part, 12 - Valve body, 13 - Valve cover, 14 - Sealing ring, 15 - Second sealing part, 16 - First sealing part, 17 - Connecting part, 18 - Connecting part, 19 - Positioning part, 20 - Position - adjusting hole, 21 - Fastener Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the embodiments and the attached drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and are not intended to limit the present utility model

[0028] Embodiment

[0029] Please refer to Figures 1 to 7 .

[0030] This embodiment provides a self - closing valve press - sealing device, including a mold base plate 1, a mold top plate 2, a support assembly, a first mold 5, a second mold 4 and a driving assembly; a support assembly is installed between the mold base plate 1 and the mold top plate 2; the first mold 5 is installed on the mold base plate 1, and the first mold 5 is provided with a locating groove 8 for positioning the self - closing valve; the driving assembly is installed on the mold top plate 2, the driving assembly is connected to the second mold 4, and the driving assembly can drive the second mold 4 to reciprocate towards the first mold 5; the second mold 4 is provided with a fitting groove 9 for adapting to the self - closing valve, and the second mold 4 is provided with a press - sealing groove for pressing and sealing the sealing ring 14, and the press - sealing groove is located at the edge of the fitting groove 9

[0031] In this embodiment, the self - closing valve has the ability to prevent disassembly after press - sealing, avoiding the problem that someone casually disassembles the self - closing valve and causes air leakage of the product. When the self - closing valve is press - sealed, the sealing ring 14 is used to fixedly connect the valve body 12 and the valve cover 13 to avoid the separation of the valve body 12 and the valve cover 13. The upper side of the sealing ring 14 is provided with a first sealing portion 16 extending inwards along the circumference, and the lower side of the sealing ring 14 is provided with a second sealing portion 15 along the circumference; before the self - closing valve is press - sealed, the valve cover 13 is covered on the valve body 12, and then the sealing ring 14 is covered on the valve cover 13. The first sealing portion 16 of the sealing ring 14 contacts the upper side edge of the valve cover 13, and the second sealing portion 15 of the sealing ring 14 extends to the lower side of the edge of the valve body 12. Then the above - mentioned whole (self - closing valve) is placed in the positioning groove 8 of the first mold 5 (the valve cover 13 is at the bottom layer, the sealing ring 14 is in the middle layer, and the valve body 12 is at the top layer). The shape and size of the positioning groove 8 are the same as the part of the self - closing valve entering the positioning groove 8, avoiding the problem that the self - closing valve shifts during the later press - sealing process, resulting in the sealing ring 14 being unable to seal the valve cover 13 and the valve body 12. After the self - closing valve is accurately installed in the positioning groove 8, the driving assembly is controlled to start. The driving assembly controls the second mold 4 to press towards the self - closing valve. The second mold 4 is provided with a mating groove 9. When the second mold 4 presses towards the self - closing valve, the self - closing valve first enters the mating groove 9. The second mold 4 continues to press towards the self - closing valve until the press - sealing groove is displaced to the second sealing portion 15 of the sealing ring 14. The second mold 4 continues to press towards the self - closing valve, and the press - sealing groove squeezes the second sealing portion 15. After being squeezed, the second sealing portion 15 deforms. The second sealing portion 15 first bends inwards. When the second mold 4 is further pressed down, the second sealing portion 15 is continuously squeezed, and the bent second sealing portion 15 is turned over and press - sealed to the edge of the valve body 12 (the shape and size of the mating groove 9 are the same as the part of the self - closing valve entering the mating groove 9). The upper side of the sealing ring 14 is press - sealed to the edge of the valve cover 13, and the second sealing portion 15 is press - sealed to the edge of the valve body 12. The valve cover 13 and the valve body 12 are hermetically sealed through the sealing ring 14; the valve body 12 and the valve cover 13 are firmly connected, with good sealing performance, meeting the anti - disassembly requirements in the standard. Moreover, the first mold 5 and the second mold 4 can accurately avoid the product during press - sealing, without showing extra edges and corners, ensuring the beautiful appearance of the product.

[0032] Further, in the utility model, the press - sealing groove includes a guiding portion 10 with an inclined - plane structure and a press - sealing portion 11 with a plane structure. The guiding portion 10 is used to bend the sealing ring 14, and the press - sealing portion 11 is used to press - seal the bent sealing ring 14.

[0033] In this embodiment, the caulking groove is located at the edge of the mating groove 9. The caulking groove is composed of a guiding portion 10 and a caulking portion 11. The groove depth of the guiding portion 10 away from the axis of the second mold 4 is less than the groove depth of the guiding portion 10 close to the axis of the second mold 4. The second mold 4 is provided with the mating groove 9. When caulking the self-closing valve, the second mold 4 can avoid the self-closing valve through the mating groove 9. The second sealing portion 15 of the sealing ring 14 first contacts the guiding portion 10. Under the abutting action of the inclined surface, the second sealing portion 15 bends in the extending direction of the inclined surface. When the second mold 4 is further pressed down, the second sealing portion 15 continues to be extruded. The bent second sealing portion 15 contacts the caulking portion 11. The bent second sealing portion 15 continues to bend to a greater extent under the abutting action of the caulking portion 11 until the second sealing portion 15 is turned over to seal to the edge of the valve body 12, so that the sealing ring 14 can seal the valve body 12 and the valve cover 13.

[0034] Furthermore, in the utility model, caulking grooves are provided on both sides of the second mold 4. Both of the two caulking grooves are located at the edge of the mating groove 9. The two caulking grooves can completely caulk the sealing ring 14.

[0035] In this embodiment, second sealing portions 15 are provided on both sides of the sealing ring 14. Caulking grooves cooperating with the second sealing portions 15 are provided on both sides of the second mold. Before caulking the self-closing valve, the valve cover 13 is covered on the valve body 12, and then the sealing ring 14 is covered on the valve cover 13. The first sealing portion 16 of the sealing ring 14 contacts the upper side edge of the valve cover 13. The second sealing portions 15 on both sides of the sealing ring 14 extend to the lower side of the edge of the valve body 12. Connecting portions 17 connected to the gas pipeline are respectively provided on both sides of the valve body 12. One of the second sealing portions 15 is located on one side of the two connecting portions 17, and the other second sealing portion 15 is located on the other side of the two connecting portions 17. When the second mold 4 is pressed down, the two caulking grooves can respectively caulk the second sealing portions 15 on both sides. After the two second sealing portions 15 are caulked, they are both turned over to seal to the edge of the valve body 12. When the two second sealing portions 15 are caulked, they can avoid the two connecting portions 17. The two second connecting portions 17 can be caulked to the edge of the valve body 12 to the greatest extent (the connecting portions 17 on both sides of the valve body 12 cannot be caulked).

[0036] Furthermore, in the utility model, a first positioning assembly is installed on the first mold 5. The first positioning assembly includes a positioning pin 7, and the positioning pin 7 cooperates with the self-closing valve.

[0037] In this embodiment, the semi-finished self-closing valve has an installation port. In the later stage, a ball valve will be installed on the self-closing valve through the installation port. When the semi-finished self-closing valve is press-sealed, it can be positioned through the installation port. When press-sealing, the self-closing valve is placed in the positioning groove 8 (the bottom layer of the valve cover 13, the middle layer of the sealing ring 14, and the top layer of the valve body 12). The inner side of the positioning groove 8 is in a stepped structure, which can support the valve cover 13, the sealing ring 14, and the valve body 12 with different depths respectively. When the self-closing valve is placed in the positioning groove 8, the positioning pin 7 just inserts into the installation port of the self-closing valve (the distance between the valve cover 13 and the installation port is equal to the distance between the positioning groove 8 and the positioning pin 7). When press-sealing the positioned self-closing valve, the self-closing valve will not be misaligned with the positioning groove 8, and the sealing ring 14 can be accurately press-sealed to the self-closing valve at the preset position.

[0038] Further, in the utility model, the first mold 5 is provided with a second positioning component. The first positioning component and the second positioning component are located on both sides of the positioning groove 8. The second positioning component includes two oppositely arranged positioning members, and the two positioning members cooperate with the self-closing valve.

[0039] In this embodiment, one side of the self-closing valve is positioned by the first positioning component during press-sealing, and the other side of the self-closing valve is positioned by the second positioning component. Double positioning can enhance the stability of the self-closing valve during press-sealing; the second positioning component is composed of oppositely arranged positioning members. One side of the self-closing valve is positioned by the positioning pin 7, and the connecting portion 17 for connecting to the gas pipeline on the other side of the self-closing valve can be placed between the two positioning members, achieving the effect of positioning the front and back sides of the self-closing valve.

[0040] Further, in the utility model, the positioning plate includes a connecting portion 17 and an inclined positioning portion 19. The connecting portion 17 is connected to the first mold 5, and the distance between the two positioning portions 19 gradually increases from bottom to top.

[0041] In this embodiment, the connecting portion 17 is used to connect to the first mold 5 to achieve a fixing effect, and the positioning portion 19 is used to position the self-closing valve to avoid the problem of misalignment of the self-closing valve during press-sealing; when the self-closing valve is press-sealed, one side of the self-closing valve is placed between the two positioning portions 19 for positioning. The distance between the two positioning portions 19 gradually increases from bottom to top. The self-closing valve with a smaller size can be placed on the lower side of the two positioning portions 19 for positioning, and the self-closing valve with a larger size can be placed on the upper side of the two positioning portions 19 for positioning, which is applicable to self-closing valves of different sizes.

[0042] Further, in the utility model, it further includes a fastener 21. The connecting portion 17 is provided with a position adjustment hole 20 along the extending direction. The fastener 21 can pass through the position adjustment hole 20 to fix the connecting portion 17 to the first mold 5, and the two connecting portions 17 can be relatively moved to adjust the distance between the two positioning portions 19.

[0043] In this embodiment, the first mold 5 is provided with fastening holes for cooperating with the fasteners 21. The fasteners 21 can sequentially pass through the position adjustment holes 20 (slotted holes) and the fastening holes. The fastening clamp presses down the connecting portion 17 to make it abut against the first mold 5, thereby achieving the effect of fixing the connecting portion 17. After the pressure exerted by the fasteners 21 on the connecting portion 17 is released, the connecting portion 17 can move relative to the first mold 5 to align the preset position of the position adjustment hole 20 with the fastening hole. Then the fasteners 21 pass through the position adjustment hole 20 and the fastening hole in sequence to achieve the effect of fixing the connecting portion 17, so that the distance between the two positioning portions 19 can be adjusted. After the distance between the two positioning portions 19 is increased, it can be applied to self-closing valves with larger sizes. After the distance between the two positioning portions 19 is decreased, it can be applied to self-closing valves with smaller sizes.

[0044] Further, in the utility model, the support assembly includes a plurality of support columns 3, and a plurality of support columns 3 are installed between the mold base plate 1 and the mold top plate 2.

[0045] In this embodiment, a plurality of support columns 3 are provided between the mold base plate 1 and the mold top plate 2, so as to achieve a sufficient height between the mold base plate 1 and the mold top plate 2 and realize the pressing and sealing work of the self-closing valve.

[0046] Further, in the utility model, the driving assembly includes a boosting cylinder 6 and a pressing and sealing shaft. The boosting cylinder 6 is installed on the mold top plate 2, one end of the pressing and sealing shaft is connected to the boosting cylinder 6, and the other end of the pressing and sealing shaft is connected to the second mold 4.

[0047] In this embodiment, the boosting cylinder 6 occupies a small space and has sufficient output force. The boosting cylinder 6 can drive the second mold 4 to press against the first mold 5 and press the sealing ring 14 between the valve cover 13 and the valve body 12.

[0048] Further, in the utility model, the first mold 5 is detachably installed on the mold base plate 1, and the second mold 4 is detachably installed on the driving assembly.

[0049] In this embodiment, when pressing and sealing self-closing valves of different sizes, the first mold 5 and the second mold 4 can be replaced. After replacement, the positioning groove 8 of the first mold 5 is adapted to the self-closing valve, and the mating groove 9 of the replaced second mold 4 is adapted to the self-closing valve, which is applicable to self-closing valves of different sizes.

[0050] In summary, the embodiment of the present utility model provides a self-closing valve pressing and sealing device. The upper side of the sealing ring 14 is pressed and sealed to the edge of the valve cover 13, and the second sealing portion 15 is pressed and sealed to the edge of the valve body 12. Sealing between the valve cover 13 and the valve body 12 is achieved through the sealing ring 14. The valve body 12 and the valve cover 13 are tightly connected, with good sealing performance, meeting the anti-disassembly requirements in the standard. Moreover, the first mold 5 and the second mold 4 can precisely avoid the product during pressing and sealing, without showing excessive edges and corners, ensuring the beautiful appearance of the product.

[0051] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A self-closing valve pressure sealing device, characterized in that: It includes a mold base plate, a mold top plate, a support assembly, a first mold, a second mold, and a driving assembly; The support assembly is installed between the mold base plate and the mold top plate; The first mold is installed on the mold base plate, and the first mold is provided with a positioning groove for positioning the self-closing valve; The driving assembly is installed on the mold top plate, the driving assembly is connected to the second mold, and the driving assembly can drive the second mold to reciprocate towards the first mold; The second mold is provided with a mating groove for adapting to the self-closing valve, and the second mold is provided with a sealing groove for pressing and sealing the sealing ring, and the sealing groove is located at the edge of the mating groove.

2. The self-closing valve pressing and sealing device according to claim 1, characterized in that, The sealing groove includes a guiding part with an inclined surface structure and a pressing part with a planar structure. The guiding part is used to bend the sealing ring, and the pressing part is used to press and seal the bent sealing ring.

3. The self-closing valve pressing and sealing device according to claim 1 or 2, characterized in that, Sealing grooves are provided on both sides of the second mold, and both of the two sealing grooves are located at the edge of the mating groove, and the two sealing grooves can completely press and seal the sealing ring.

4. The self-closing valve pressing and sealing device according to claim 1 or 2, characterized in that The first mold is installed with a first positioning assembly, and the first positioning assembly includes a positioning pin, and the positioning pin cooperates with the self-closing valve.

5. The self-closing valve pressing and sealing device according to claim 4, characterized in that, The first mold is installed with a second positioning assembly. The first positioning assembly and the second positioning assembly are located on both sides of the positioning groove. The second positioning assembly includes two oppositely arranged positioning members, and the two positioning members cooperate with the self-closing valve.

6. The self-closing valve pressing and sealing device according to claim 5, characterized in that, The positioning plate includes a connecting part and an inclined positioning part. The connecting part is connected to the first mold, and the distance between the two positioning parts gradually increases from bottom to top.

7. The self-closing valve pressing and sealing device according to claim 6, wherein, It further includes a fastener. The connecting part is provided with a position adjusting hole along the extending direction. The fastener can pass through the position adjusting hole to fix the connecting part to the first mold, and the two connecting parts can move relatively to adjust the distance between the two positioning parts.

8. The self-closing valve pressing and sealing device according to claim 1 or 2, characterized in that The support assembly includes a plurality of support columns, and a plurality of the support columns are installed between the mold base plate and the mold top plate.

9. The self-closing valve pressing and sealing device according to claim 1 or 2, characterized in that, The driving assembly includes a booster cylinder and a sealing shaft. The booster cylinder is installed on the mold top plate. One end of the sealing shaft is connected to the booster cylinder, and the other end of the sealing shaft is connected to the second mold.

10. The self-closing valve pressing and sealing device according to claim 1 or 2, characterized in that, The first mold is detachably installed on the mold base plate, and the second mold is detachably installed on the driving assembly.

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