Polyurethane foam joint mixture packaging container valve and packaging container

Abstract

The invention relates to the technical field of foam container valves, and discloses a polyurethane foam caulking agent packaging container valve and a packaging container, the polyurethane foam caulking agent packaging container valve comprises a valve body, the valve body comprises a sealing colloid, a clamping shell is arranged on the outer side surface of the sealing colloid, and the clamping shell is used for wrapping a foam caulking agent bottle body; a sliding pipe is arranged in one side of the sealing rubber body, a conveying pipe is arranged in the sliding pipe, and a threaded head is arranged at the top of the conveying pipe. According to the invention, through mutual cooperation of the driving rod, the sliding block and other components, when the arc-shaped handle is subjected to longitudinal pressure, the driving rod can be driven by the sliding block along the interior of the sliding groove to longitudinally move; and when the arc-shaped handle is subjected to transverse pressure, a driving rod can transversely move towards the direction of the sliding pipe through mutual cooperation of a sliding block, a reset spring and a baffle, and therefore the effect of clamping or extruding the outer side surface of the sliding pipe can be achieved through a circular ring and a scraper.

Description

Technical Field

[0001] The invention relates to the technical field of foam container valves, in particular to a polyurethane foam sealant packaging container valve and a packaging container. Background Art

[0002] At present, polyurethane foam sealant materials are particularly suitable for use in the construction sector in insulation and installation, and are suitable for bonding, fixing, installation, sound insulation, heat insulation, high insulation, sealing and moisture-proof, dustproof, gas isolation, filling structural gaps, engineering holes and various cracks, etc. The containers used for filling polyurethane foam sealants are mainly cans, and the valves used on the cans are polyurethane foam sealant packaging container valves.

[0003] A Chinese patent with application number 202222952578.X discloses a novel polyurethane foam sealant valve, including a valve sealing base, a rubber sealing ring, a valve core delivery pipe, a threaded connection groove, a sealing connection pad, a discharge guide groove, a discharge port, a leak-proof strip and a leak-proof sealing groove. The rubber sealing ring is sealed and installed at the center of the valve sealing base.

[0004] According to the above-mentioned prior art, when filling wall gaps of different depths, if the wall gaps are deep, the foam sealant is often difficult to directly reach the deepest part of the wall gap during the spraying process, which results in uneven filling of the wall gaps, seriously affecting its sound insulation, heat preservation and thermal insulation performance. Moreover, when not in use or stopped, some residual materials often remain at the end of the delivery pipe. If not cleaned immediately, these residual materials will solidify quickly, directly causing the delivery pipe to be blocked, causing great inconvenience for the next use, hindering the construction process, reducing work efficiency, and increasing construction costs and time costs.

[0005] Therefore, it is necessary to solve the above problems through a polyurethane foam sealant packaging container valve and a packaging container. Summary of the invention

[0006] The object of the present invention is to provide a polyurethane foam sealant packaging container valve and a packaging container to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polyurethane foam sealant packaging container valve, comprising a valve body, the valve body comprising a sealing colloid, the outer surface of the sealing colloid is provided with a snap-on shell, the snap-on shell is used to cover the foam sealant bottle, a sliding tube is provided inside one side of the sealing colloid, a delivery tube is provided inside the sliding tube, an adjustment ring is fixedly provided on the outer surface of the delivery tube, a transmission rod is provided on one side of the adjustment ring, a threaded head is provided on the top of the delivery tube, and the threaded head is used to connect the discharge port of the foam sealant bottle; A sealing plate is provided at one end of the sliding tube away from the conveying tube. The sealing plate is in close contact with the sealing colloid. A groove is provided at the bottom of the sealing plate. A sealing cover is slidably provided in the groove. The sealing cover is used to seal the sliding tube.

[0008] Preferably, a contact plate is provided on the outer surface of the sliding tube, a top plate is provided at the bottom of the contact plate, a limiting tube is provided at the bottom of the top plate, the other end of the limiting tube is interconnected with the sealing colloid, the limiting tube is used to reset the sliding tube, and when the limiting tube is in the initial state, the sliding tube is located at the upper part of the sealing rubber tube.

[0009] Preferably, a fixing ring is provided on the inner wall of the sliding tube, a first compression spring is provided at the bottom of the fixing ring, a sliding ring is provided at the other end of the first compression spring, a flexible tube is provided on the side of the sliding ring facing the first compression spring, and the inner wall of the flexible tube is in contact with the outer side of the conveying tube; The outer surface of the sliding ring is tightly fitted with the inner wall of the sliding tube. A fixed block is provided at the bottom of the sliding ring. The interior of the fixed block is connected to a connecting rod through a hinge shaft. An adjustment plate is provided at the other end of the connecting rod. The adjustment plate is hinged to the sliding ring through the hinge shaft.

[0010] Preferably, the inner wall of the sliding tube is provided with mounting holes, the number of the mounting holes is set to four, each of the mounting holes is provided with a one-way valve, and the one-way valve is used to control the external gas from entering the interior of the sliding tube; The sliding tube is communicated with the interior of the sealing colloid through a one-way valve. The interior of the sealing colloid is provided with two symmetrically arranged accommodation spaces, and a ventilation hole for inhaling external air is provided on one side of the inner wall of the accommodation space.

[0011] Preferably, when the sealing colloid is pressed from both sides, the ventilation holes in the sealing colloid fit into the inner wall of the snap-on shell, and the gas in the space inside the sealing colloid enters the interior of the sliding tube through the one-way valve; When the sealing colloid is not under pressure, the ventilation hole of the sealing colloid is no longer in contact with the interior of the snap-on shell, and the gas in the storage space of the sealing colloid absorbs the external air through the ventilation hole, and the air pressure in the storage space of the sealing colloid head is restored to the initial state.

[0012] Preferably, a sliding groove is provided inside the sealing colloid, a transverse groove is provided in the middle of the sliding groove, a slider is slidably provided inside the sliding groove, the length and width of the slider are mutually adapted to the transverse groove, a return spring is provided on one side of the slider, and a limit plate is provided at the other end of the return spring; A driving rod is provided inside the slider for movement, and the outer surface of the driving rod is connected to the limit plate. An arc handle is provided at the end of the driving rod away from the slider, and a circular ring is provided at the end of the driving rod facing the sealing colloid. A scraper is provided at the bottom of the circular ring, and a material guide bin is provided inside the sealing colloid.

[0013] Preferably, when the driving rod is in a compressed state, the return spring is in a compressed state, the driving rod slides inside the slider, and the side of the ring away from the driving rod fits with the outer surface of the sliding tube; When the driving rod is in an extreme pressure state, the return spring is in an extreme compression state, the driving rod slides inside the slider, the side of the ring away from the driving rod presses the outer surface of the sliding tube, the sliding tube is in a deformation state, and the cross-sectional area of ​​the sliding tube is reduced.

[0014] The present invention also provides a packaging container, comprising the polyurethane foam sealant packaging container valve and the packaging container described in the aforementioned technical solution, wherein the packaging container is used for packaging the polyurethane foam sealant packaging container valve, and the polyurethane foam sealant packaging container valve is fixedly arranged inside the packaging container.

[0015] Preferably, the packaging shell includes an upper shell and a lower shell, a limit block is provided at the bottom of the upper shell, a screw is provided inside the limit block, the upper shell is threadedly connected to the lower shell through the screw, and the upper shell and the lower shell are connected to form a fully enclosed container.

[0016] Technical effects and advantages of the present invention: 1. The present invention sets the driving rod and the slider to cooperate with each other. When the arc handle is subjected to longitudinal pressure, the driving rod can be driven to move longitudinally along the inside of the sliding groove by the slider. When the arc handle is subjected to lateral pressure, the driving rod can be moved laterally toward the direction of the sliding tube by the cooperation of the slider, the return spring and the limit plate, so that the outer surface of the sliding tube can be clamped or squeezed by the ring and the scraper.

[0017] 2. The present invention provides a sealing colloid and a accommodating space. When the top plate on the sliding tube is squeezed by the adjusting ring, the end of the limiting tube close to the sealing colloid will exert pressure on the surface of the sealing colloid, causing the accommodating space in the sealing colloid to deform downward. At this time, the sliding tube can move along with the movement of the delivery tube and the foam sealant bottle. When the foam sealant bottle is in a non-pressurized state, the accommodating space in the sealing colloid will gradually return to its initial state, causing the sliding ring and the top plate to return to their initial positions, thereby achieving the effect of resetting the height of the sliding tube and the top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the valve body structure of the present invention; Figure 2 This is a schematic diagram of the packaging shell structure of the present invention; Figure 3 This is a schematic diagram of the structure of the valve body of the present invention in an open state; Figure 4 for Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the position limiting tube and related structures of the present invention; Figure 6 It is a schematic diagram of the first compression spring and related structures of the present invention; Figure 7 It is a schematic diagram of the adjustment plate and related structures of the present invention; Figure 8 It is a schematic diagram of the hinge shaft and related structures of the present invention; Fig. 9 It is a schematic diagram of the shape structure of the sliding groove of the present invention.

[0019] In the figure: 1. packaging shell; 101. upper shell; 102. limit block; 103. screw; 104. lower shell; 2. valve body; 201. snap-on shell; 202. delivery pipe; 203. threaded head; 204. contact plate; 205. top plate; 206. limit tube; 207. sealing colloid; 208. ventilation hole; 209. return spring; 210. sliding tube; 211. guide bin; 212. ring; 213. scraper; 214. slider; 215. driving rod; 216. limit plate; 217. sealing plate; 218. flexible tube; 219. first compression spring; 220. sliding ring; 221. adjusting plate; 222. hinge shaft; 223. fixing block; 224. connecting rod; 225. fixing ring; 226. sliding groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] The present invention provides Figures 1 to 9A polyurethane foam sealant packaging container valve shown in the figure comprises a valve body 2, the valve body 2 comprises a sealing colloid 207, a snap-on shell 201 is provided on the outer surface of the sealing colloid 207, the snap-on shell 201 is used to cover the foam sealant bottle body, a sliding tube 210 is provided inside one side of the sealing colloid 207, a delivery tube 202 is provided inside the sliding tube 210, an adjustment ring is fixedly provided on the outer surface of the delivery tube 202, a transmission rod is provided on one side of the adjustment ring, a threaded head 203 is provided on the top of the delivery tube 202, the threaded head 203 is used to connect to the discharge port of the foam sealant bottle body, a sealing plate 217 is provided at one end of the sliding tube 210 away from the delivery tube 202, the sealing plate 217 is in close contact with the sealing colloid 207, a groove is provided at the lower part of the sealing plate 217, a sealing cover is slidably provided in the groove, and the sealing cover is used to seal the sliding tube 210.

[0022] The outer surface of the sliding tube 210 is provided with a contact plate 204, the bottom of the contact plate 204 is provided with a top plate 205, the bottom of the top plate 205 is provided with a limit tube 206, the other end of the limit tube 206 is connected to the sealing colloid 207, the limit tube 206 is used to reset the sliding tube 210, when the limit tube 206 is in the initial state, the sliding tube 210 is located at the upper part of the sealing colloid tube, the inner wall of the sliding tube 210 is provided with a fixing ring 225, the bottom of the fixing ring 225 is provided with a first compression spring 219, the other end of the first compression spring 219 A sliding ring 220 is provided, and a flexible tube 218 is provided on the side of the sliding ring 220 facing the first compression spring 219. The inner wall of the flexible tube 218 fits with the outer side of the conveying tube 202, and the outer surface of the sliding ring 220 fits tightly with the inner wall of the sliding tube 210. A fixed block 223 is provided at the bottom of the sliding ring 220. The interior of the fixed block 223 is connected to the connecting rod 224 through a hinge shaft 222. An adjustment plate 221 is provided at the other end of the connecting rod 224. The adjustment plate 221 is hinged to the sliding ring 220 through the hinge shaft 222.

[0023] The inner wall of the sliding tube 210 is provided with mounting holes, and the number of the mounting holes is set to four. A one-way valve is provided in each mounting hole. The one-way valve is used to control the external gas from entering the interior of the sliding tube 210. The sliding tube 210 is connected to the interior of the sealing colloid 207 through the one-way valve. The interior of the sealing colloid 207 is provided with two symmetrically arranged accommodating spaces, and one side of the inner wall of the accommodating space is provided with a ventilation hole 208 for inhaling external gas. When the sealing colloid 207 is pressed from the left and right sides, the ventilation hole 208 in the sealing colloid 207 fits with the inner wall of the snap-on shell 201, and the gas in the accommodating space of the sealing colloid 207 enters the interior of the sliding tube 210 through the one-way valve. When the sealing colloid 207 is not in a pressurized state, the ventilation hole 208 of the sealing colloid 207 no longer fits with the interior of the snap-on shell 201, and the gas in the accommodating space of the sealing colloid 207 inhales the external air through the ventilation hole 208, and the air pressure in the accommodating space of the sealing colloid head is restored to the initial state.

[0024] When in use, by opening a containing space inside the sealing colloid 207, after the foam sealant is connected, the foam sealant bottle needs to be moved toward the sealing colloid 207, so that the delivery tube 202 and the sliding tube 210 are moved toward the sealing cover, and finally the outlet end of the sliding tube 210 is moved out of the sealing colloid 207, thereby completing the purpose of injecting the foam sealant. During this process, when the top plate 205 on the sliding tube 210 is squeezed by the adjusting ring, the end of the limiting tube 206 close to the sealing colloid 207 will apply downward pressure to the surface of the sealing colloid 207, so that the containing space in the sealing colloid 207 under pressure will be compressed due to the pressure of the limiting tube 206. A depression is generated at the bottom, thereby providing space for the moving direction of the sliding tube 210. At this time, the sliding tube 210 moves toward the bottom of the sealing colloid 207 together with the delivery tube 202 and the foam sealant bottle. Then, when the discharge end of the sliding tube 210 moves out of the outside of the sealing colloid 207, the exposed sliding tube 210 is inserted into the wall gap and is ready to be injected with foam sealant. After the injection work is completed, when the foam sealant bottle is not in a pressurized state, the accommodating space in the sealing colloid 207 will gradually return to its initial state, so that the sliding ring 220 and the top plate 205 are restored to their initial positions, thereby achieving the purpose of resetting the sliding tube 210 and the top plate 205.

[0025] The sealing colloid 207 is provided with a sliding groove 226 inside, a transverse groove is provided in the middle of the sliding groove 226, a slider 214 is provided inside the sliding groove 226 for sliding movement, the length and width of the slider 214 are mutually adapted to the transverse groove, a return spring 209 is provided on one side of the slider 214, a limit plate 216 is provided on the other end of the return spring 209, a driving rod 215 is provided inside the slider 214 for movement, the outer surface of the driving rod 215 is connected to the limit plate 216, an arc handle is provided on the end of the driving rod 215 away from the slider 214, a circular ring 212 is provided on the end of the driving rod 215 facing the sealing colloid 207, a scraper is provided on the bottom of the circular ring 212 The knife 213 and the sealing colloid 207 are provided with a material guide bin 211. When the driving rod 215 is in a compressed state, the return spring 209 is in a compressed state, the driving rod 215 slides inside the slider 214, and the side of the ring 212 away from the driving rod 215 fits with the outer surface of the sliding tube 210. When the driving rod 215 is in an extreme compressed state, the return spring 209 is in an extreme compressed state, the driving rod 215 slides inside the slider 214, and the side of the ring 212 away from the driving rod 215 presses the outer surface of the sliding tube 210, the sliding tube 210 is in a deformed state, and the cross-sectional area of ​​the sliding tube 210 is reduced.

[0026] When in use, by setting the driving rod 215 and the slider 214 to cooperate with each other, when the arc handle is subjected to longitudinal pressure, the driving rod 215 can be driven to move longitudinally along the inside of the sliding groove 226 by the slider 214, and when the arc handle is subjected to lateral pressure, the driving rod 215 can be moved laterally in the direction of the sliding tube 210 through the cooperation of the slider 214, the return spring 209 and the limit plate 216, so that the outer surface of the sliding tube 210 can be clamped or squeezed by the ring 212 and the scraper 213.

[0027] The present invention also provides a packaging container, including the polyurethane foam sealant packaging container valve and the packaging container of the aforementioned technical solution, the packaging container is used for packaging the polyurethane foam sealant packaging container valve, the polyurethane foam sealant packaging container valve is fixedly arranged inside the packaging container, the packaging shell 1 includes an upper shell 101 and a lower shell 104, a limit block 102 is provided at the bottom of the upper shell 101, a screw 103 is provided inside the limit block 102, the upper shell 101 is threadedly connected to the lower shell 104 by the screw 103, and the upper shell 101 and the lower shell 104 are connected to form a fully enclosed container.

[0028] In summary, when in use, first connect the discharge port of the canned bottle of foam sealant with the threaded head 203 on the delivery tube 202, then press the bottle body of the foam sealant toward the valve body 2, so that the bottle body drives the delivery tube 202 and the adjustment ring to slide downward, then the bottom of the adjustment ring will contact with the contact plate 204 and squeeze the surface of the contact plate 204, then the contact plate 204 will drive the top plate 205 to move inside the sealing colloid 207, and the accommodating space in the sealing colloid 207 will be affected by the pressure from the top plate 205. The pressure from the top plate 205 will cause it to concave downward, at which time the sliding tube 210 will slide out to the bottom, and then the sealing cover will be moved out through the groove to allow the sealing colloid 207 to leak out from the bottom end of the sliding tube 210. Then, the adjusting ring will be slightly moved upward to allow the delivery tube 202 to apply pressure to the discharge port of the foam sealant bottle body, so that the internal foam sealant is transported into the delivery tube 202, and the foam sealant is transported to the sliding tube 210 through the delivery tube 202, and then the wall gap is filled from the bottom end of the sliding tube 210.

[0029] When filling wall gaps of varying depths, if the wall gap is deep, the foam sealant often has difficulty reaching the deepest part of the wall gap during the spraying process, resulting in uneven filling of the wall gap. Therefore, when filling deep wall gaps, the specific plan is adjusted as follows: When the wall gap is deep, the driving rod 215 only needs to be pushed downward, and the driving rod 215 will move to the bottom of the sealing colloid 207 through the cooperation of the slider 214 and the sliding groove 226. At this time, the arc handle is pressed to make the driving rod 215 slide in the slider 214, and the ring 212 and the scraper 213 are controlled to press the outer side of the discharge end of the sliding tube 210, thereby reducing the transverse cross-section of the sliding tube 210 and increasing the pressure of the foam sealant in the sliding tube 210. Subsequently, by pressing the left and right sides of the sealing colloid 207, the inner wall of the clamping shell 201 and the ventilation hole 208 are completely fitted, so that the gas in the storage space of the sealing colloid 207 cannot be discharged to the outside, and the gas in the storage space is discharged into the sliding tube 210 through the one-way valve, so that the foam sealant can be injected into the deepest part of the wall gap for filling.

[0030] After the caulking work is completed, the residual material inside the discharge end of the sliding tube 210 needs to be cleaned to prevent the residual material from solidifying and causing the discharge end of the sliding tube 210 to be blocked. When the sliding tube 210 is used again, it cannot cooperate with the conveying tube 202 to discharge and caulk the gap. The specific adjustment plan is as follows: When use is completed, the foam sealant bottle body is no longer pressurized, and it is restored to the initial state (the state in which the discharge port of the foam sealant bottle body and the delivery tube 202 are connected). First, press and toggle the two arc-shaped handles to move upward, so that the sliding rod slides in the direction of the slider 214 and clamps the outer side of the sliding tube 210, so that the sliding tube 210 slides upward. During this process, the end of the delivery tube 202 will contact the sliding ring 220 and move along the inner wall of the sliding tube 210 against the sliding ring 220. Since the sliding ring 220 fits tightly against the inner wall of the sliding tube 210, the remaining material in the inner wall of the sliding tube 210 will be pushed downward during the movement of the sliding ring 220. Since the viscosity of the foam sealant is relatively high, the remaining material will adhere to the bottom of the sliding ring 220 at this time. The driving rod 215 clamped by the tube 210 moves toward the direction of the sliding tube 210, and because the sliding tube 210 is now located above the driving rod 215, when the driving rod 215 moves to the bottom of the sliding tube 210, it only needs to maintain this position to limit the bottom end of the sliding tube 210 with the ring 212. At this time, the sliding ring 220 has been exposed from the bottom end of the sliding tube 210. At this time, the two driving rods 215 that initially clamped the sliding tube 210 are controlled to slide downward through the slider 214 to scrape off the residual material adhered to the bottom of the sliding ring 220, and then the driving rod 215 that limits the sliding tube 210 is removed, so that the sliding tube 210 quickly moves toward the direction of the sealing cover and returns to its initial position, and the residual material scraped off by the ring 212 can be pushed out to the outside, thereby completing the purpose of cleaning the residual material.

Claims

1. A polyurethane foam sealant packaging container valve, comprising a valve body (2), characterized in that: The valve body (2) comprises a sealing colloid (207), the outer surface of the sealing colloid (207) is provided with a snap-on shell (201), the snap-on shell (201) is used to cover the foam sealant bottle, a sliding tube (210) is provided inside one side of the sealing colloid (207), a delivery tube (202) is provided inside the sliding tube (210), an adjustment ring is fixedly provided on the outer surface of the delivery tube (202), a transmission rod is provided on one side of the adjustment ring, a threaded head (203) is provided on the top of the delivery tube (202), and the threaded head (203) is used to connect to the discharge port of the foam sealant bottle; A sealing plate (217) is provided at one end of the sliding tube (210) away from the delivery tube (202), the sealing plate (217) being in close contact with the sealing colloid (207), a groove being provided at the bottom of the sealing plate (217), a sealing cover being slidably provided in the groove, the sealing cover being used to seal the sliding tube (210).

2. The polyurethane foam sealant packaging container valve according to claim 1, characterized in that: A contact plate (204) is provided on the outer surface of the sliding tube (210), a top plate (205) is provided at the bottom of the contact plate (204), a limit tube (206) is provided at the bottom of the top plate (205), the other end of the limit tube (206) is connected to the sealing colloid (207), the limit tube (206) is used to reset the sliding tube (210), and when the limit tube (206) is in an initial state, the sliding tube (210) is located at the upper part of the sealing colloid tube.

3. The polyurethane foam sealant packaging container valve according to claim 2, characterized in that: The inner wall of the sliding tube (210) is provided with a fixing ring (225), the bottom of the fixing ring (225) is provided with a first compression spring (219), the other end of the first compression spring (219) is provided with a sliding ring (220), and the side of the sliding ring (220) facing the first compression spring (219) is provided with a flexible tube (218), and the inner wall of the flexible tube (218) is in contact with the outer side of the conveying tube (202); The outer surface of the sliding ring (220) is tightly fitted with the inner wall of the sliding tube (210); a fixing block (223) is provided at the bottom of the sliding ring (220); the interior of the fixing block (223) is connected to a connecting rod (224) via a hinge shaft (222); an adjustment plate (221) is provided at the other end of the connecting rod (224); and the adjustment plate (221) is hinged to the sliding ring (220) via the hinge shaft (222).

4. The polyurethane foam sealant packaging container valve according to claim 1, characterized in that: The inner wall of the sliding tube (210) is provided with mounting holes, the number of the mounting holes is set to four, each mounting hole is provided with a one-way valve, and the one-way valve is used to control external gas from entering the interior of the sliding tube (210); The sliding tube (210) is connected to the interior of the sealing colloid (207) via a one-way valve. The interior of the sealing colloid (207) is provided with two symmetrically arranged accommodation spaces, and a ventilation hole (208) for inhaling external air is provided on one side of the inner wall of the accommodation space.

5. The polyurethane foam sealant packaging container valve according to claim 4, characterized in that: When the sealing colloid (207) is pressed from both sides, the ventilation hole (208) in the sealing colloid (207) and the inner wall of the snap-on shell (201) fit together, and the gas in the space inside the sealing colloid (207) enters the interior of the sliding tube (210) through the one-way valve; When the sealing colloid (207) is not in a pressurized state, the ventilation hole (208) of the sealing colloid (207) is no longer in contact with the interior of the snap-on shell (201), and the gas in the space contained in the sealing colloid (207) draws in external air through the ventilation hole (208), and the air pressure in the space contained in the sealing colloid head is restored to an initial state.

6. The polyurethane foam sealant packaging container valve according to claim 5, characterized in that: The sealing colloid (207) is provided with a sliding groove (226) inside, a transverse groove is provided in the middle of the sliding groove (226), a sliding block (214) is provided inside the sliding groove (226) for sliding, the length and width of the sliding block (214) are mutually adapted to the transverse groove, a return spring (209) is provided on one side of the sliding block (214), and a limit plate (216) is provided on the other end of the return spring (209); A driving rod (215) is movably provided inside the slider (214), the outer surface of the driving rod (215) is connected to a limit plate (216), an arc-shaped handle is provided at one end of the driving rod (215) away from the slider (214), a circular ring (212) is provided at one end of the driving rod (215) facing the sealing colloid (207), a scraper (213) is provided at the bottom of the circular ring (212), and a material guide bin (211) is provided inside the sealing colloid (207).

7. The polyurethane foam sealant packaging container valve according to claim 6, characterized in that: When the driving rod (215) is in a compressed state, the return spring (209) is in a compressed state, the driving rod (215) slides inside the slider (214), and the side of the ring (212) away from the driving rod (215) is in contact with the outer surface of the sliding tube (210); When the driving rod (215) is in an extreme pressure state, the return spring (209) is in an extreme compression state, the driving rod (215) slides inside the slider (214), and the side of the ring (212) away from the driving rod (215) presses the outer surface of the sliding tube (210), the sliding tube (210) is in a deformed state, and the cross-sectional area of ​​the sliding tube (210) is reduced.

8. A packaging container, comprising the polyurethane foam sealant packaging container valve according to any one of claims 1 to 7, wherein the packaging container is used for packaging the polyurethane foam sealant packaging container valve, and is characterized in that: The valve of the polyurethane foam sealant packaging container is fixedly arranged inside the packaging container.

9. The packaging container according to claim 8, comprising a packaging shell, characterized in that: The packaging shell (1) comprises an upper shell (101) and a lower shell (104); a limit block (102) is provided at the bottom of the upper shell (101); a screw (103) is provided inside the limit block (102); the upper shell (101) is threadedly connected to the lower shell (104) via the screw (103); and the upper shell (101) and the lower shell (104) are connected to form a fully enclosed container.

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