Pot lid for spraying equipment and container for spraying equipment

Abstract

The invention discloses a container for spraying equipment. The container comprises an outer cup and a kettle cover. A protruding connecting pipe is arranged on the kettle cover, a sealing ring and a connecting part are arranged on the outer pipe wall of the connecting pipe, the connecting part comprises two first ribs which are arranged side by side, and the sealing ring is located on the outer side of the connecting part; wherein an insertion groove is formed between the two first ribs, the insertion groove extends along the outer circumference of the connecting pipe, and the insertion groove is configured to be a spiral wedge-shaped element formed by an external connection part in an inserted mode; an integrally formed first locking part is arranged on the outer cup, and an integrally formed second locking part is arranged on the kettle cover; and the first locking part is connected with the second locking part, so that the kettle cover is pressed on the outer cup. The use reliability of the pot cover is improved, so that the use reliability of the paint pot is improved.

Description

Technical Field

[0001] The present application relates to the technical field of paint spraying equipment, and in particular to a pot cover for spraying equipment and a container for spraying equipment. Background Art

[0002] At present, in the field of automobile spray painting, a paint pot is installed on a paint spray gun to supply paint and perform a spray painting operation. Chinese Patent Publication No. CN101367066A discloses a connector for connecting a feeding device to a spray gun, and a connector is provided on a paint container for a paint spray gun, and a spiral wedge element is provided on the connector. During use, the connector is mounted on the spray gun using a spiral wedge. However, since the connector on the paint container is usually integrally injection molded with the lid of the paint container, the spiral wedge formed on the connector is connected to the spiral wedge of the corresponding element of the spray gun after being mounted on the spray gun. However, in actual use, the paint container only relies on the spiral wedge to cooperate with the corresponding element of the spray gun to prevent it from falling off, and the spray gun usually needs to shake back and forth when in use, and it is easy for the spiral wedge to be damaged due to long-term stress, resulting in low reliability in use. In view of this, how to design a technology to improve the reliability of the use of the paint pot is a technical problem to be solved in this application. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide a pot cover for spraying equipment and a container for spraying equipment, so as to improve the reliability of use of the pot cover and thus improve the reliability of use of the paint pot.

[0004] The technical solution provided by the present application is a pot cover for spraying equipment, an outer cup and a pot cover; the pot cover is provided with a protruding connecting pipe, the outer tube wall of the connecting pipe is provided with a sealing ring and a connecting part, the connecting part includes two first ribs arranged side by side, and the sealing ring is located on the outer side of the connecting part; Wherein, a slot is formed between the two first ribs, the slot extends along the outer circumference of the connecting pipe, and the slot is configured to be a spiral wedge-shaped element formed by inserting an external component; The outer cup is provided with an integrally formed first locking portion, and the pot cover is provided with an integrally formed second locking portion; the first locking portion is connected to the second locking portion so that the pot cover is pressed onto the outer cup.

[0005] In one embodiment, the connecting portion further includes a second rib, wherein the second rib is connected to ends of two of the first ribs, and the two first ribs and the second rib form a sideways U-shaped structure.

[0006] In one embodiment, the opening of the slot is in a trumpet-shaped structure, and the slot width gradually decreases from the opening to the tail.

[0007] In one embodiment, the cup mouth of the outer cup is provided with an outer folded edge, the edge of the outer folded edge is provided with a folded edge, the inner surface of the folded edge is provided with a plurality of protruding first locking portions, and a locking groove is formed between the first locking portion and the outer folded edge; The edge of the pot lid is provided with a plurality of second locking parts protruding outward, and the second locking parts are located on the outside of the annular extrusion part. The second locking parts are inserted into the locking grooves and rely on the elasticity generated by the outer flange to make the second locking parts tightly attached to the lower surface of the first locking parts.

[0008] In one embodiment, a plurality of annular grooves arranged side by side are provided at the free end of the connecting pipe, a sealing ring is formed between two adjacent annular grooves, and the sealing ring is in contact with the inner wall of the adapter joint.

[0009] In one embodiment, the outer wall of the outer cup is provided with the first locking portion, and the edge of the pot lid is also provided with a plurality of folded extension portions, the inner surface of the folded extension portion is provided with the second locking portion, the folded extension portion is arranged on the outer side of the annular extrusion portion, and the folded extension portion extends along the outer wall of the outer cup toward the bottom of the outer cup.

[0010] In one embodiment, the outer wall of the outer cup is provided with a plurality of external thread segments, and the plurality of external thread segments are sequentially arranged along the outer peripheral wall of the outer cup; an insertion port is formed between adjacent ends of two adjacent external thread segments; and the plurality of external thread segments form the first locking portion; The edge of the pot cover is provided with an annular flange, the inner wall of the annular flange is provided with a plurality of internal thread segments, and the plurality of internal thread segments are sequentially arranged along the inner circumferential wall of the annular flange; the plurality of internal thread segments form the second locking portion; Wherein, the internal thread section is connected to the corresponding external thread section, and the pot cover seals the cup mouth of the outer cup.

[0011] In one embodiment, the internal thread segment includes a plurality of sub-thread segments, and the plurality of sub-thread segments of the same internal thread segment are sequentially spaced apart along the corresponding external thread segment.

[0012] In one embodiment, a plurality of hollow openings are provided on the annular flange, and the hollow openings are arranged above the corresponding sub-thread segments.

[0013] In one embodiment, the external component is an adapter joint, the inner wall of the adapter joint is provided with an inserting portion matching the connecting portion, the inserting portion is a third rib formed on the inner wall of the adapter joint, and the third rib extends along the inner circumference of the adapter joint; the adapter joint is sleeved on the outside of the connecting pipe, the third rib is inserted into the slot, and the end of the connecting pipe is interference fit with the adapter joint; Wherein, the third rib is the spiral wedge-shaped element.

[0014] In one embodiment, a locking rib is further provided on the outer surface of the connection joint, and the locking rib extends along the circumference of the connection joint and is arranged obliquely relative to the center line of the connection joint; The locking rib is configured to abut against a locking portion of the spray gun through the locking rib after the connecting joint is inserted into the plug port of the spray gun.

[0015] In one embodiment, the external component is a spray gun, the spray gun is provided with a plug interface, the plug interface is communicated with a nozzle of the spray gun, a fourth rib is provided on the spray gun at one side of the plug interface, the connecting pipe is inserted into the plug interface, and the fourth rib is inserted into the slot; Wherein, the fourth rib is the spiral wedge-shaped element.

[0016] The present application also provides a container for spraying equipment, comprising an outer cup and the above-mentioned pot cover for spraying equipment, wherein the pot cover is arranged on the pot body.

[0017] In one embodiment, the container for spraying equipment further comprises an inner cup, the edge of the cup mouth of the inner cup is provided with an outer flange, and the outer flange overlaps the cup mouth of the outer cup; the pot cover is provided with an annular extrusion part, the pot cover is arranged on the outer cup, and the annular extrusion part is inserted into the cup mouth of the inner cup; After the first locking portion and the second locking portion are connected, the outer flange is clamped between the inner cup and the outer cup, and the first locking portion and the second locking portion are tightly attached together due to the elasticity generated by the outer flange.

[0018] Compared with the prior art, the advantages and positive effects of the present application are: a connecting part is provided on the connecting tube of the pot cover, and a slot is formed between the two first ribs in the connecting part to meet the insertion requirements of the spiral wedge-shaped element formed by the external component; after the spiral wedge-shaped element is inserted into the slot, the spiral wedge-shaped element will be clamped between the two first ribs. In this way, during use, the spiral wedge-shaped element will alternately apply force to the two first ribs, and the two first ribs are used to clamp the spiral wedge-shaped element, and the force generated by the spiral wedge element is alternately borne by the two first ribs, thereby improving the reliability of use on the pot cover and improving the reliability of use of the paint pot.

[0019] In addition, by forming an integrally structured second locking portion on the edge of the pot lid to cooperate with the first locking portion on the outer cup, the pot lid is assembled to the outer cup, and there is no need to additionally configure a tightening ring to fix the pot lid on the outer cup, thereby ensuring a firm and reliable connection between the pot lid and the outer cup and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a structural schematic diagram of an embodiment of a container for a spraying device of the present application; Figure 2 This is a cross-sectional view of an embodiment of a container for a new type of spraying equipment of the present application; Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area; Figure 4 This is an exploded view of an embodiment of a container for a novel spraying device of the present application; Figure 5 This is a cross-sectional view of another embodiment of a container for a spraying device of the present application; Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle B area; Figure 7 This is one of the exploded views of another embodiment of the container for the spraying equipment of the present application; Figure 8 This is a schematic structural diagram of another embodiment of a container for a spraying device of the present application; Fig. 9 This is a cross-sectional view of another embodiment of a container for a spraying device of the present application; Fig.10 for Fig. 9 A partial enlarged schematic diagram of the middle C area; Fig.11 for Figure 8 Schematic diagram of the structure of the middle pot cover; Fig.12 This is a schematic diagram of the structure of the inner cup in another embodiment of the container for the spraying equipment of the present application; Fig.13 This is a schematic diagram of the structure of the inner and outer cups in another embodiment of the container for the spraying equipment of the present application; Fig.14This is a schematic diagram of the assembly of a spray gun and a pot cover in another embodiment of the container for spraying equipment of the present application; Fig.15 This is a schematic structural diagram of a pot cover in another embodiment of a container for a spraying device of the present application; Fig.16 A cross-sectional view of another embodiment of a container for a spraying device of the present application; Fig.17 This is one of the structural schematic diagrams of a pot cover in another embodiment of a container for a spraying device of the present application; Fig.18 This is a second structural schematic diagram of a pot cover in yet another embodiment of a container for a spraying device of the present application; Fig.19 This is a schematic structural diagram of the inner and outer cups in another embodiment of the container for the spraying equipment of the present application.

[0022] Reference numerals: 1. Pot body; 11. Outer cup; 12. Inner cup; 110, first locking portion; 111, hollow structure; 112, outer folding edge; 113, folding edge; 121, outer folding edge; 101, external thread segment; 201, annular flange; 202, internal thread segment; 2021, sub-thread segment; 203, hollow opening; 2031, inclined surface; 102, air vent; 2. Pot cover; 20. Second locking part; 21. Connecting pipe; 22. Connecting part; 23. Locking rib; 24. Annular groove; 25. Sealing ring; 26. Annular extrusion part; 27. Friction rib; 28. Folding extension part; 29. ​​Strip opening; 221, first rib; 222, second rib; 223, slot; 3. Adapter joint; 31. Third rib; 32. Locking rib; 4. Tighten the collar; 5. Spray gun; 51. Plug interface; 52. Fourth rib. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] like Figure 1-Figure 4 As shown, the present application provides a container for a spraying device, comprising a pot body 1 and a pot cover 2.

[0025] The pot cover 2 is provided with a protruding connecting tube 21, and the outer tube wall of the connecting tube 21 is provided with at least one connecting portion 22, and the connecting portion 22 includes two first ribs 221 arranged side by side, and a slot 223 is formed between the two first ribs 221, and the slot 223 extends along the outer circumference of the connecting tube 21; The kettle cover 2 is arranged on the kettle body 1, and the slot is configured to form an insertion space.

[0026] Specifically, the connecting tube 21 on the pot cover 2 forms a corresponding connecting portion 22 of an integrated structure, and the connecting portion 22 is composed of two first ribs 221, and a slot is formed between the two first ribs 221 to meet the installation requirements. In this way, during use, the external component for fixing the pot cover is correspondingly formed with an inserting portion, so that the inserting portion is inserted between the two first ribs through the inserting portion, and then the inserting portion is clamped between the two first ribs 221 to complete the assembly.

[0027] Since the plug-in part is clamped between the two first ribs 221, during use, the shaking of the plug-in part will alternately apply external force to the two first ribs 221. The two first ribs 221 are used to withstand the impact force generated by the plug-in part during use, thereby reducing damage to the first ribs 221 and improving reliability.

[0028] like Fig.15 As shown, the connecting tube 21 may be provided with only two first ribs 221 to withstand the impact force generated by the plug-in portion during use. The width of the slot 223 formed between the two first ribs 221 may be a gradual structure, that is, during the process of inserting the spiral wedge-shaped element into the slot 223, the width of the slot 223 gradually decreases, so as to clamp and position the spiral wedge-shaped element to prevent the spiral wedge-shaped element from rotating excessively and escaping from the slot 223.

[0029] Preferably, if Figure 4 As shown, the connecting portion 22 further includes a second rib 222 , and the second rib 222 is connected between two of the first ribs 221 , and the first rib 221 and the second rib 222 form a sideways U-shaped structure.

[0030] Specifically, the connecting portion 22 of the integral structure formed on the connecting tube 21 of the pot cover 2 is composed of two first ribs 221 and one second rib 222, and the two first ribs 221 are connected by the second rib 222 so that the connecting portion 22 forms a sideways U-shaped structure. In this way, during use, after the two first ribs 221 arranged side by side are subjected to force, the force can be transmitted between the two first ribs 221 through the second rib 222 to improve the structural strength.

[0031] Since the two first ribs 221 are connected by the second rib 222, the force is transmitted to the other first rib 221 through the second rib 222, so that the two first ribs 221 can jointly bear the force generated by the plug-in part. In this way, fatigue damage caused by frequent stress on a single rib on the connecting pipe 21 can be effectively reduced.

[0032] In one embodiment, the connecting pipe 21 on the kettle cover 2 can be directly assembled to the spray gun 5 , or can be indirectly installed on the spray gun through the adapter 3 .

[0033] like Fig.14 As shown, the connecting tube 21 on the pot cover 2 can be directly assembled onto the spray gun 5, and the spray gun 5 has a plug-in port 51, and the plug-in port 51 is connected to the nozzle of the spray gun, and a fourth rib 52 is provided on one side of the plug-in port on the spray gun, and the connecting tube 21 is inserted into the plug-in port 51, and the fourth rib 52 is inserted into the slot. Specifically, the fourth rib 52 serves as a plug-in portion. During assembly, the connecting tube 21 is first inserted into the plug-in port 51, and then the pot cover 2 is rotated so that the fourth rib 52 is inserted between the two first ribs 221. Typically, the fourth rib 52 can be in a spiral wedge-shaped structure, so that it becomes tighter and tighter during insertion between the two first ribs 221, thereby improving the connection reliability. During use, when the painter holds the spray gun to spray, as the spray gun swings back and forth, the lid 2 will generate alternating opposite forces at the connection point with the fourth rib 52, so that the fourth rib 52 is alternately subjected to the pressure generated by the two first ribs 221.

[0034] like Figure 1 As shown, the connecting tube 21 on the pot cover 2 can be indirectly installed on the spray gun through the connecting joint 3, and the inner wall of the adapter joint 3 is provided with a plug-in portion matching the connecting portion 22, and the plug-in portion is a third rib 31 formed on the inner wall of the adapter joint 3, and the third rib 31 extends along the inner circumference of the adapter joint 3; the adapter joint 3 is sleeved on the outside of the connecting tube 21, and the third rib 31 is inserted into the slot 223, and the end of the connecting tube 21 is interference fit with the adapter joint 3. Specifically, the third rib 31 serves as a plug-in portion. After the adapter joint 3 is assembled to the pot cover 2, the third rib 31 formed on the inner wall of the adapter joint 3 will be inserted into the slot 223, thereby realizing the assembly of the adapter joint 3 to the pot cover 2. During use, when the painter holds the spray gun to spray, the pot body 1 and the pot cover 2 are installed on the spray gun through the adapter joint 3. As the spray gun shakes back and forth, the pot cover 2 will generate alternating opposite forces on the connection part with the adapter joint 3, so that the third rib 31 is alternately subjected to the pressure generated by the two first ribs 221.

[0035] The following is a further description of the installation of the spraying equipment container on the spray gun through the adapter 3. The newly added structural design of the spraying equipment container is also applicable to direct installation on the spray gun, which will not be described in detail.

[0036] In one embodiment, the connecting pipe 21 may be provided with a plurality of connecting portions 22 as required, such as Figure 4 As shown, in order to improve the connection reliability, two connection parts 22 arranged back to back may be provided on the outer tube wall of the connecting tube 21 ; correspondingly, two third ribs 31 are provided in the adapter joint 3 .

[0037] In one embodiment, the opening of the slot 223 is in a trumpet-shaped structure, and the slot width of the slot 223 gradually decreases from the opening to the tail.

[0038] Specifically, in order to facilitate the smooth insertion of the third rib 31 into the slot 223, the opening of the slot 223 is a bell-mouth structure, so that during the process of inserting the third rib 31 into the slot 223, the bell-mouth structure can smoothly insert the third rib 31 into the slot 223. At the same time, the slot width of the slot 223 gradually decreases from the opening to the tail, so that after the third rib 31 is inserted into the slot 223, the third rib 31 can be smoothly inserted, and after the third rib 31 is assembled in place, the third rib 31 is tightly clamped between the two first ribs 221 to ensure a firm and reliable connection. Among them, the third rib 31 is interference fit with the slot 223.

[0039] In yet another embodiment, a locking rib 3223 is further provided on the outer surface of the connection joint. The locking rib 3223 extends along the circumference of the connection joint and is arranged obliquely relative to the center line of the connection joint.

[0040] Specifically, the locking ribs 3223 configured on the connection joint are arranged obliquely, so that they can cooperate with the locking portion (such as a threaded structure or an inclined rib) on the spray gun to facilitate the assembly of the connection joint to the spray gun.

[0041] In another embodiment, the free end of the connecting tube 21 is provided with a plurality of annular grooves 24 arranged side by side, and a sealing ring 25 is formed between two adjacent annular grooves 24 . The sealing ring 25 is abutted against the inner wall of the adapter joint 3 , and the sealing ring 25 is located on the outer side of the connecting portion 22 .

[0042] Specifically, since the pot cover 2 is made of plastic material, in order to achieve a better sealing effect after the connecting pipe 21 of the pot cover 2 is inserted into the adapter joint 3, a plurality of annular grooves 24 arranged side by side are formed on the connecting pipe 21, and sealing rings 25 are formed between the annular grooves 24. After the connecting pipe 21 is inserted into the adapter joint 3, the sealing ring 25 abuts against the inner wall of the adapter joint 3 and deforms to a certain extent into the annular grooves 24, thereby improving the sealing performance.

[0043] A connecting portion 22 is provided on the connecting tube 21 of the pot cover, and two first ribs 221 in the connecting portion 22 are connected together through the second rib 222 to form a U-shaped structure, and a slot 223 is formed between the two first ribs 221 to meet the requirement that the adapter joint 3 is connected through the third rib 31. Since the third rib 31 is inserted between the two first ribs 221, it can be ensured that the third rib 31 is firmly clamped by the two first ribs 221, thereby meeting the requirement that the connecting joint is firmly and reliably assembled on the pot cover 2. During use, the pot body 1 can alternately apply supporting force to the two first ribs 221 through the third rib 31 due to shaking. At the same time, the two first ribs 221 are connected together through the second rib 222, so that the structural strength of the connecting portion 22 itself is increased, and the structural strength of the connecting tube 21 is also increased, and the damage of the connecting tube 21 is reduced, so as to improve the connection reliability between the pot cover 2 and the conversion joint, and to improve the reliability of the use of the paint pot.

[0044] In some embodiments, the kettle body 1 may be a single-body structure, or may be a split-body structure.

[0045] For the kettle body 1 with a split structure, Figure 2 and Figure 4 As shown, the kettle body 1 includes an outer cup 11 and an inner cup 12, the edge of the cup mouth of the inner cup 12 is provided with an outer flange 121, and the outer flange 121 overlaps the cup mouth of the outer cup 11; the kettle cover 2 is provided with an annular extrusion portion 26, the kettle cover 2 is arranged on the outer cup 11, the annular extrusion portion 26 is inserted into the cup mouth of the inner cup 12, and the outer flange 121 is clamped between the inner cup 12 and the outer cup 11.

[0046] Specifically, the outer cup 11 has strong rigidity to meet the requirement of not being deformed during use; and the inner cup 12 has strong flexibility to meet the requirement that the inner cup 12 can deform itself after the fluid flows out during use.

[0047] The outer cup 11 is provided with a hollow structure 111 to ensure that during use, negative pressure is not formed in the outer cup 11 to affect the smooth outflow of the fluid in the inner cup 12 .

[0048] In addition, in order to fix the pot cover 2 on the outer cup 11, the container for spraying equipment also includes a tightening ring 4, which is provided with a first thread, and the outer wall of the outer cup 11 is provided with a second thread matching the first thread; the tightening sleeve is fixed to the outer cup 11 by connecting the first thread and the second thread, and the pot cover 2 is clamped between the outer cup 11 and the tightening ring 4.

[0049] Specifically, after the pot cover 2 is placed on the outer cup 11, the pot cover 2 is pressed and fixed on the outer cup 11 by tightening the collar 4, and the tightening collar 4 and the outer cup 11 can be connected together by conventional fixed connection methods such as threads.

[0050] For the kettle body 1 of the monomer structure, Fig.16 As shown, a storage space for storing fluid is formed between the kettle body 1 and the kettle cover 2. The kettle body 1 is a single body structure, and the kettle body 1 and the kettle cover 2 are sealed together to form a storage space for storing fluid therebetween. After the kettle body 1 and the kettle cover 2 are connected together, the kettle cover 2 will seal the kettle mouth of the kettle body 1.

[0051] In the second embodiment, the present application further provides a container for a spraying device, which comprises a kettle body 1, a kettle cover 2 and an adapter joint 3, wherein the kettle body 1 in the present embodiment adopts a split structure, that is, the kettle body 1 comprises an outer cup 11 and an inner cup 12.

[0052] like Figure 5-Figure 7 As shown, for the pot lid 2, in order to reduce the manufacturing cost, the connection between the pot lid 2 and the outer cup 11 no longer relies on an additional annular connecting piece, but a first locking portion 110 of an integral structure is provided on the outer cup 11, and correspondingly, an integrally formed second locking portion 20 is provided on the edge of the pot lid 2.

[0053] Specifically, a hollow structure 111 is provided on the outer cup 11, and an outer flange 121 is provided on the edge of the cup mouth of the inner cup 12, and the outer flange 121 overlaps the cup mouth of the outer cup 11; an annular extrusion portion 26 is provided on the pot cover 2, and the pot cover 2 is arranged on the outer cup 11, and the annular extrusion portion 26 is inserted into the cup mouth of the inner cup 12; wherein, after the first locking portion 110 and the second locking portion 20 are connected, the outer flange 121 is clamped between the inner cup 12 and the outer cup 11, and the first locking portion 110 and the second locking portion 20 are tightly attached together by relying on the elasticity generated by the outer flange 121.

[0054] Specifically, the edge of the pot cover 2 is provided with a second locking portion 20 of an integral structure. When in use, the second locking portion 20 cooperates with the first locking portion 110 on the outer cup 11 to fix the pot cover 2 on the outer cup 11, thereby saving parts and reducing manufacturing costs.

[0055] Among them, since parts are saved, in order to ensure the reliability of the connection between the pot cover 2 and the outer cup 11, the outer flange 121 of the inner cup 12 sandwiched between the outer cup 11 and the pot cover 2 is squeezed by the pot cover 2 and the outer cup 11 to react with the pot cover 2 by the elastic force generated, so that the first locking part 110 and the second locking part 20 are tightly attached together. In this way, while reducing parts to reduce costs, it is ensured that the pot cover 2 and the outer cup 11 are connected tightly together by the elastic force generated by the outer flange 121.

[0056] The second locking portion 20 of an integral structure is formed on the edge of the pot cover 2 to cooperate with the first locking portion 110 on the outer cup 11 to complete the assembly of the pot cover 2 onto the outer cup 11, and no additional tightening ring 4 is required to fix the pot cover 2 on the outer cup 11, so as to reduce the manufacturing cost; at the same time, since the outer flange 121 of the inner cup 12 can be clamped between the cup mouth of the outer cup 11 and the pot cover 2, the outer flange 121 of the inner cup 12 is plastically deformed to generate an elastic force on the pot cover 2 away from the outer cup 11, so that the first locking portion 110 and the second locking portion 20 are tightly attached together, so as to ensure a firm and reliable connection between the pot cover 2 and the outer cup 11.

[0057] In one embodiment, if Figure 6 As shown, the cup mouth of the outer cup 11 is provided with an outer folding edge 112, the edge of the outer folding edge 112 is provided with a folding edge 113, the inner surface of the folding edge 113 is provided with a protruding first locking portion 110, and a locking groove is formed between the first locking portion 110 and the outer folding edge 112; the edge of the pot cover 2 is provided with a plurality of outwardly protruding second locking portions 20, and the second locking portions 20 are located on the outer side of the annular extrusion portion 26; After the kettle cover 2 is arranged on the kettle body 1 , the second locking portion 20 is inserted into the locking groove and the second locking portion 20 is tightly attached to the first locking portion 110 due to the elasticity generated by the outer flange 121 .

[0058] Specifically, the outer cup 11 is provided with an outer folding edge 112 extending outward, and the first locking portion 110 is arranged through the folding edge 113 provided on the outer folding edge 112, so that the outer folding edge 121 of the inner cup 12 can overlap the surface of the outer folding edge 112. The edge of the pot cover 2 is provided with a second locking portion 20, so that the second locking portion 20 extends into the bottom of the first locking portion 110 and is inserted into the locking groove. Moreover, under the elastic force of the outer folding edge 121 of the inner cup 12, the second locking portion 20 is tightly attached to the first locking portion 110.

[0059] The first locking portion 110 may be a first protruding locking strip formed on the inner surface of the folded edge 113, and correspondingly, the second locking portion 20 may be a second protruding locking strip formed on the edge of the lid 2. The first locking strip is arranged obliquely relative to the outer folded edge 112.

[0060] In addition, in order to facilitate the user to rotate the pot cover 2, a plurality of raised friction ribs 27 may be further provided on the surface of the pot cover 2.

[0061] Among them, for the outer folded edge 112 on the outer cup 11, as Figure 6 As shown, the outer fold 112 is annular in structure, and the outer fold 112 surrounds the periphery of the cup opening of the outer cup 11. Fig.13 As shown, a plurality of outer folded edges 112 are arranged at intervals on the cup opening of the outer cup 11 .

[0062] In another embodiment, if Figure 8-Figure 11 As shown, the outer wall of the outer cup 11 is provided with the first locking portion 110, and the edge of the pot cover 2 is also provided with a plurality of folded extension portions 28, the inner surface of the folded extension portion 28 is provided with the second locking portion 20, and the folded extension portion 28 is arranged on the outside of the annular extrusion portion 26, and the folded extension portion 28 extends along the outer wall of the outer cup 11 toward the bottom of the outer cup 11; wherein, after the pot cover 2 is arranged on the pot body 1, the second locking portion 20 is connected to the first locking portion 110 and relies on the elasticity generated by the outer flange 121 to make the second locking portion 20 tightly attached to the first locking portion 110.

[0063] Specifically, the first locking portion 110 is located on the outer wall surface of the outer cup 11, and the edge of the pot cover 2 is provided with a folded extension portion 28 to be arranged on the outer circumference of the outer cup 11, and the folded extension portion 28 is provided with a second locking portion 20, so that the pot cover 2 is directly fixed on the outer cup 11 through the cooperation of the second locking portion 20 and the first locking portion 110. The first locking portion 110 and the second locking portion 20 may be expressed as threads.

[0064] In one embodiment, in order to ensure that the pot cover 2 and the outer cup 11 are accurately assembled in place, a strip opening 29 is provided on the pot cover 2 , and the strip opening 29 is arranged on the inner side of the second locking portion 20 .

[0065] Specifically, the strip opening 29 passes through the pot lid 2 and is located on the inner side of the second locking portion 20. The strip opening 29 allows the operator to observe the connection status of the first locking portion 110 and the second locking portion 20 through the strip opening 29, thereby facilitating the operator to intuitively check whether the pot lid 2 and the outer cup 11 are assembled in place.

[0066] The arrangement of the strip-shaped openings 29 can also reduce the amount of material used in one embodiment, thereby more effectively reducing the manufacturing cost.

[0067] In order to facilitate observation by operators, after the kettle cover 2 is arranged on the kettle body 1 , the strip-shaped opening 29 and the first locking portion 110 are arranged opposite to each other.

[0068] A connecting portion 22 is provided on the connecting tube 21 of the pot cover, and two first ribs 221 in the connecting portion 22 are connected together through the second rib 222 to form a U-shaped structure, and a slot 223 is formed between the two first ribs 221 to meet the requirement that the adapter joint 3 is connected through the third rib 31. Since the third rib 31 is inserted between the two first ribs 221, it can be ensured that the third rib 31 is firmly clamped by the two first ribs 221, thereby meeting the requirement that the connecting joint is firmly and reliably assembled on the pot cover 2. During use, the pot body 1 can alternately apply supporting force to the two first ribs 221 through the third rib 31 due to shaking. At the same time, the two first ribs 221 are connected together through the second rib 222, so that the structural strength of the connecting portion 22 itself is increased, and the structural strength of the connecting tube 21 is also increased, and the damage of the connecting tube 21 is reduced, so as to improve the connection reliability between the pot cover 2 and the conversion joint, and to improve the reliability of the use of the paint pot.

[0069] In some embodiments, since the inner cup 12 is sealed by the pot cover 2, during use, as the fluid in the inner cup 12 decreases, the inner cup 12 will form an internal negative pressure and cause the inner cup 12 to deform, thereby causing the fluid in the inner cup 12 to be unable to be completely discharged. Fig.12 As shown, a switchable air valve 122 is also provided on the inner cup 12 .

[0070] Specifically, the air valve 122 is opened and closed according to the use state. During the spraying process, the air valve 122 is in an open state. At this time, the inner cup 12 is inverted, so that the air valve 122 is located at the top. When the air valve 122 is opened, the fluid in the inner cup 12 flows out through the connecting tube 121, and the outside air can enter the inner cup 12 through the air valve 122, thereby reducing the deformation of the inner cup 12, so that the fluid in the inner cup 12 can flow out more completely.

[0071] In addition, for the container for spraying equipment in the second embodiment, the connecting portion 22 arranged on the connecting pipe 21 can also be represented by an inclined rib with a limiting rib arranged at the end of the inclined rib, that is, Figure 7 The connecting portion 22 is shown in FIG.

[0072] In another embodiment of the present application, Figure 16-Figure 19As shown, the outer wall of the outer cup 1 is provided with a plurality of external thread segments 101, and the plurality of external thread segments 101 are sequentially arranged along the outer peripheral wall of the outer cup; an insertion port is formed between adjacent ends of two adjacent external thread segments 101; and the plurality of external thread segments 101 form the first locking portion 110; The edge of the pot lid is provided with an annular flange 201, and the inner wall of the annular flange 201 is provided with a plurality of internal thread segments 202, and the plurality of internal thread segments 202 are sequentially arranged along the inner circumferential wall of the annular flange 201; the plurality of internal thread segments 202 form the second locking portion 20; The internal thread section 202 is connected to the corresponding external thread section 101, and the pot cover seals the mouth of the outer cup.

[0073] Specifically, the edge of the pot cover 2 forms an annular flange 201, and a plurality of internal thread segments 202 are formed on the inner wall of the annular flange 201. Correspondingly, a plurality of external thread segments 101 are provided on the outer wall of the outer cup near the cup opening. When the pot cover 2 is assembled on the outer cup 11, the internal thread segments 202 at corresponding positions will be inserted into the lower part of the corresponding external thread segments 101 through the insertion opening formed between the adjacent ends of the external thread segments 101. After the pot cover 2 is tightened, the pot cover 2 is fastened on the outer cup 11 and seals the cup opening of the outer cup 11.

[0074] Furthermore, the internal thread segment 202 includes a plurality of sub-thread segments 2021 , and the plurality of sub-thread segments 2021 of the same internal thread segment 202 are sequentially arranged at intervals along the corresponding external thread segment 101 .

[0075] Specifically, in order to facilitate the processing of the pot cover 2 and improve the connection reliability between the internal thread segment 202 and the external thread segment 101, the internal thread segment 202 is composed of multiple sub-thread segments 2021, and the multiple sub-thread segments 2021 in the same internal thread segment 202 are distributed along the extension curve of the corresponding external thread segment 101. In this way, when connected, the multiple sub-thread segments 2021 in the same internal thread segment 202 can be more closely attached to the surface of the corresponding external thread segment 101 to improve the connection reliability. Since the same internal thread segment 202 adopts a segmented design, multiple short-length sub-thread segments 2021 can be processed on the inner surface of the annular flange 201, which can effectively reduce the processing difficulty and facilitate demolding, avoiding the difficulty of demolding caused by processing a long-length thread segment on the inner surface of the annular flange 201. At the same time, the same external thread segment 101 cooperates with multiple sub-thread segments 2021 to meet the reliable connection requirements between the pot cover 2 and the outer cup 11, thereby improving the reliability of the connection.

[0076] Furthermore, a plurality of hollow openings 203 are provided on the annular flange 201 , and the hollow openings 203 are arranged above the corresponding sub-thread segments 2021 .

[0077] Specifically, by providing a hollow opening 203 on the annular flange 201, the hollow opening 203 matches the corresponding sub-thread segment 2021. In this way, when demolding, the part where the sub-thread segment 2021 is formed in the mold can be separated from the pot cover 2 through the hollow opening 203 to reduce the difficulty of demolding.

[0078] The lower surface of the inner circle of the hollow opening 203 is an inclined surface 2031 , and the inclined surface 2031 is flush with the upper surface of the sub-thread segment 2021 .

[0079] Specifically, in order to improve the processing accuracy of the sub-thread segment 2021, the lower surface of the hollow opening 203 can be designed as an inclined surface 2031, and the inclined surface 2031 is used to meet the requirement of the inclined extension arrangement of the sub-thread segment 2021. The length of the inclined surface 2031 of the hollow opening 203 is not less than the length of the upper surface of the sub-thread segment 2021.

[0080] In another embodiment, a ventilation hole 102 is provided at the bottom of the outer cup.

[0081] Specifically, for a container for a spraying device without an inner liner, the outer cup 11 is directly filled with paint. During use, in order to meet the air pressure balance, an air hole 102 may be provided on the outer cup 11. The air hole 102 may be blocked by a plug during the process of filling the paint to prevent leakage; during the painting process, the plug is opened to open the air hole 102 to allow air to enter.

[0082] Embodiment 3: Based on the above-mentioned embodiments 1 and 2, the present application further provides a container for spraying equipment, wherein the structural design of the connecting pipe 21 and the connecting joint on the pot cover 2 adopts the structural form of embodiment 1. As for the pot body 1, it adopts a split structure, and the structural design of the pot body 1 and the pot cover 2 adopts the structural form of embodiment 2.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A container for a spraying device, It is characterized in that include: An outer cup and a pot cover; the pot cover is provided with a protruding connecting tube, the outer tube wall of the connecting tube is provided with a sealing ring and a connecting portion, the connecting portion includes two first ribs arranged side by side, and the sealing ring is located on the outer side of the connecting portion; Wherein, a slot is formed between the two first ribs, the slot extends along the outer circumference of the connecting pipe, and the slot is configured to be a spiral wedge-shaped element formed by inserting an external component; The outer cup is provided with an integrally formed first locking portion, and the pot cover is provided with an integrally formed second locking portion; the first locking portion is connected to the second locking portion so that the pot cover is pressed onto the outer cup.

2. The pot cover for spraying equipment according to claim 1, It is characterized in that The connecting portion further includes a second rib, which is connected to ends of two of the first ribs, and the two first ribs and the second rib form a sideways U-shaped structure.

3. The pot cover for spraying equipment according to claim 1, It is characterized in that The cup mouth of the outer cup is provided with an outer folding edge, the edge of the outer folding edge is provided with a folding edge, the inner surface of the folding edge is provided with a plurality of protruding first locking parts, and a locking groove is formed between the first locking part and the outer folding edge; The edge of the pot lid is provided with a plurality of second locking parts protruding outward, and the second locking parts are located on the outside of the annular extrusion part. The second locking parts are inserted into the locking grooves and rely on the elasticity generated by the outer flange to make the second locking parts tightly attached to the lower surface of the first locking parts.

4. The pot cover for spraying equipment according to claim 1, It is characterized in that The outer wall of the outer cup is provided with the first locking portion, and the edge of the pot lid is also provided with a plurality of folded extension portions, the inner surface of the folded extension portion is provided with the second locking portion, the folded extension portion is arranged on the outside of the annular extrusion portion, and the folded extension portion extends along the outer wall of the outer cup toward the bottom of the outer cup.

5. The pot cover for spraying equipment according to claim 1, It is characterized in that The outer wall of the outer cup is provided with a plurality of external thread segments, and the plurality of external thread segments are sequentially arranged along the outer peripheral wall of the outer cup; an insertion port is formed between adjacent ends of two adjacent external thread segments; and the plurality of external thread segments form the first locking portion; The edge of the pot cover is provided with an annular flange, the inner wall of the annular flange is provided with a plurality of internal thread segments, and the plurality of internal thread segments are sequentially arranged along the inner circumferential wall of the annular flange; the plurality of internal thread segments form the second locking portion; Wherein, the internal thread section is connected to the corresponding external thread section, and the pot cover seals the cup mouth of the outer cup.

6. The pot cover for spraying equipment according to claim 5, It is characterized in that The internal thread segment includes a plurality of sub-thread segments, and the plurality of sub-thread segments of the same internal thread segment are sequentially spaced apart along the corresponding external thread segment.

7. The pot cover for spraying equipment according to claim 6, It is characterized in that The annular flange is provided with a plurality of hollow openings, and the hollow openings are arranged above the corresponding sub-thread segments.

8. The pot cover for spraying equipment according to claim 1, It is characterized in that The external component is an adapter joint, the inner wall of the adapter joint is provided with an inserting portion matching the connecting portion, the inserting portion is a third rib formed on the inner wall of the adapter joint, and the third rib extends along the inner circumference of the adapter joint; the adapter joint is sleeved on the outside of the connecting pipe, the third rib is inserted into the slot, and the end of the connecting pipe is interference fit with the adapter joint; Wherein, the third rib is the spiral wedge-shaped element.

9. The pot cover for spraying equipment according to claim 1, It is characterized in that The external component is a spray gun, the spray gun is provided with a plug interface, the plug interface is communicated with the nozzle of the spray gun, the spray gun is provided with a fourth rib on one side of the plug interface, the connecting pipe is inserted into the plug interface, and the fourth rib is inserted into the slot; Wherein, the fourth rib is the spiral wedge-shaped element.

10. The container for spraying equipment according to claim 1, It is characterized in that The pot also includes an inner cup, the edge of the inner cup is provided with an outer flange, and the outer flange overlaps the cup mouth of the outer cup; the pot cover is provided with an annular extrusion part, the pot cover is arranged on the outer cup, and the annular extrusion part is inserted into the cup mouth of the inner cup; After the first locking portion and the second locking portion are connected, the outer flange is clamped between the inner cup and the outer cup, and the first locking portion and the second locking portion are tightly attached together due to the elasticity generated by the outer flange.

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