Spray head for polyurethane foaming agent

Abstract

The utility model discloses a spray head for a polyurethane foaming agent, and relates to the technical field related to the polyurethane foaming agent. The device comprises a bent pipe, a corrugated hose is fixed to the lower end of the bent pipe, an insertion pipe located in the corrugated hose is fixed to the interior of the bent pipe, a sealing column is arranged at the upper end of the bent pipe, and a movable annular plate is fixed to the middle of the peripheral side of the sealing column. A spring arranged on the peripheral side of the sealing column in a sleeving mode is fixed to the lower surface of the movable annular plate, a rubber pipe is arranged at the upper end of the bent pipe, and a bent opening is formed in the portion, below the movable opening, of the bent pipe. The movable ring plate is pushed by the spring to drive the sealing column to move, so that the sealing column can seal the bent pipe, the inserting pipe can be inserted into the tank body after the sleeve is sleeved at the end opening of the tank body, and the problem that when a rubber pipe is replaced, the rubber pipe cannot be replaced easily is solved. The inside of the spray head is not sealed; and the tightness between the spray head and the polyurethane foaming agent tank body cannot be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field related to polyurethane foaming agents, in particular to a spray head for polyurethane foaming agents. Background Art

[0002] Polyurethane foaming agent is a special polyurethane product that contains polyurethane prepolymer, foaming agent, catalyst and other components in a pressure-resistant aerosol can. When the material is sprayed out of the aerosol can, the foamy polyurethane material will expand rapidly and react with the air or moisture in the substrate it contacts to form foam. When in use, a corresponding nozzle is required to spray the foaming agent in the aerosol can. However, it still has the following disadvantages in actual use:

[0003] 1. When using the nozzle, the hose used by the nozzle will be replaced. However, when replacing the hose, since the inside of the nozzle is not sealed, the polyurethane foaming agent inside the nozzle is exposed to the external air for a long time, which will cause the polyurethane foaming agent to react quickly in the nozzle;

[0004] 2. After the nozzle is installed on the polyurethane foam tank, the tightness between the nozzle and the polyurethane foam tank cannot be guaranteed, so the polyurethane foam cannot fully enter the interior of the nozzle. Utility Model Content

[0005] The utility model aims to provide a nozzle for a polyurethane foaming agent, which drives the movement of a sealing column by pushing a movable ring plate through a spring, so that the sealing column can seal the bent tube and after the sleeve is sleeved on the port position of the tank body, the plug-in tube can be inserted into the interior of the tank body, thereby solving the problem that when replacing the rubber hose, the interior of the nozzle cannot be sealed and the tightness between the nozzle and the polyurethane foaming agent tank body cannot be guaranteed.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a nozzle for a polyurethane foaming agent, comprising a bending tube, a corrugated hose being fixed at the lower end of the bending tube, a plug-in tube being fixed inside the bending tube and being located inside the corrugated hose, a sealing column being arranged at the upper end of the bending tube, a movable opening being opened at the inner side wall of the upper end of the bending tube, a movable ring plate being fixed at the middle position of the peripheral side of the sealing column, a spring being fixed on the lower surface of the movable ring plate and being sleeved at the peripheral side of the sealing column, a rubber hose being arranged at the upper end of the bending tube, and a bending opening being opened inside the bending tube located below the movable opening.

[0008] Furthermore, a sleeve is fixed to the lower end of the corrugated hose, the lower end of the plug-in tube is configured to be in an inverted cone shape, and a handle is fixed to the circumference of the curved tube located above the corrugated hose.

[0009] Furthermore, the interior of the plug-in tube is connected with the interiors of the bending tube and the sleeve.

[0010] Furthermore, the peripheral side of the sealing column is slidably connected to the inner wall of the bending tube, and the lower end of the spring is fixed at the lower end surface position of the movable port.

[0011] Furthermore, a spray hole is provided in the middle of the upper end of the sealing column, and a plurality of through holes evenly distributed in an annular shape are provided on the peripheral side of the lower end of the sealing column beyond the movable port, and the through holes are connected to the inside of the spray hole.

[0012] Furthermore, an outer spiral tube is fixed to the upper end of the outer portion of the bending tube, and the inner diameter of the outer spiral tube is consistent with the diameter of the bending tube.

[0013] Furthermore, an inner thread opening is provided at the lower end of the rubber hose, and the rubber hose is spirally connected to the circumferential side of the outer spiral tube through the inner thread opening.

[0014] The utility model has the following beneficial effects:

[0015] 1. When the utility model is in use, when replacing the rubber hose, the rubber hose is rotated to make the rubber hose come out of the peripheral position of the outer spiral tube, so that the sealing column is no longer pushed by the rubber hose, and then the spring will push the movable ring plate to move upward inside the movable port, and drive the sealing column to move inside the bending tube, and at the same time, the through hole around the sealing column will move to a position between the movable port and the bending tube, so that the inner wall of the bending tube will block the through hole, so that the polyurethane foaming agent cannot continue to flow into the inside of the through hole, avoiding the rapid change of the polyurethane foaming agent inside the bending tube, thereby reducing the change efficiency.

[0016] 2. When the utility model is in use, the sleeve is arranged on the peripheral side of the port of the polyurethane foaming agent, so that the plug-in tube inside the bent tube can be inserted into the internal position of the polyurethane foaming agent port, so that the bent tube is connected with the interior of the polyurethane foaming agent tank body, thereby controlling the handle to move downward, and the handle is used to compress the corrugated hose, which can drive the plug-in tube to move inside the polyurethane foaming agent tank body. Since the plug-in tube is located inside the polyurethane foaming agent tank body, the polyurethane foaming agent can accurately and comprehensively enter the internal position of the bent tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0018] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 2 This is the external structure diagram of the utility model;

[0020] Figure 3 This is the internal structure diagram of the bending tube in the utility model;

[0021] Figure 4 This is a structural diagram of the sealing column in the utility model;

[0022] Figure 5 It is the structural diagram of the rubber hose in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Bending tube; 101. Handle; 102. Sleeve; 103. Plug-in tube; 104. Corrugated hose; 105. Movable opening; 106. External screw tube; 107. Bending opening; 2. Hose; 201. Internal screw opening; 3. Sealing column; 301. Movable ring plate; 302. Spray hole; 303. Spring; 304. Through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] See also Figure 1-5 As shown, the utility model is a nozzle for a polyurethane foaming agent, comprising a bending tube 1, a corrugated hose 104 is fixed to the lower end of the bending tube 1, a plug-in tube 103 located inside the corrugated hose 104 is fixed inside the bending tube 1, a sealing column 3 is arranged at the upper end of the bending tube 1, a movable opening 105 is opened on the inner side wall of the upper end of the bending tube 1, a movable ring plate 301 is fixed to the middle position of the peripheral side of the sealing column 3, and a spring 303 sleeved on the peripheral side of the sealing column 3 is fixed to the lower surface of the movable ring plate 301. A hose 2 is provided at the upper end of the bending tube 1, a bending opening 107 is provided inside the bending tube 1 below the movable opening 105, an outer spiral tube 106 is fixed to the upper end of the outside of the bending tube 1, the inner diameter of the outer spiral tube 106 is consistent with the diameter of the bending tube 1, an inner threaded opening 201 is provided at the lower end of the hose 2, the hose 2 is spirally attached to the peripheral position of the outer spiral tube 106 through the inner threaded opening 201, and the hose 2 is screwed to the peripheral position of the outer spiral tube 106 through the inner threaded opening 201, so that the hose 2 can be installed at the port position of the bending tube 1.

[0027] Among them Figure 1-5As shown, the lower end of the corrugated hose 104 is fixed with a sleeve 102, and the lower end of the plug-in tube 103 is set to an inverted cone shape. Since the plug-in tube 103 is in an inverted cone shape, the plug-in tube 103 can be accurately inserted into the internal position of the polyurethane foaming agent tank. The handle 101 is fixed to the peripheral side of the bending tube 1 above the corrugated hose 104. The interior of the plug-in tube 103 is connected with the interior of the bending tube 1 and the sleeve 102. The peripheral side of the sealing column 3 is slidably connected with the inner side wall of the bending tube 1. The lower end of the spring 303 is fixed to the lower end surface of the movable port 105. A spray hole 302 is provided in the middle position of the upper end of the sealing column 3, and a plurality of through holes 304 are provided in a ring-shaped and evenly distributed position around the lower end of the sealing column 3 beyond the movable opening 105, and the through holes 304 are connected with the inside of the spray hole 302. When the sealing column 3 is pushed by the hose 2, the sealing column 3 will drive the movable ring plate 301 to compress the spring 303. At the same time, after the hose 2 releases the push on the sealing column 3, the spring 303 will push the movable ring plate 301 to reset, and then the movable ring plate 301 will drive the sealing column 3 to move to the internal position of the outer spiral tube 106.

[0028] A specific application of this embodiment is: through the arrangement and use of the above structure, when the bending tube 1 is needed, the sleeve 102 below the bending tube 1 can be sleeved on the peripheral position of the port of the polyurethane foaming agent, thereby the plug-in tube 103 inside the bending tube 1 can be inserted into the internal position of the polyurethane foaming agent port, so that the bending tube 1 is connected with the inside of the polyurethane foaming agent tank body, thereby controlling the handle 101 to move downward, so that the handle 101 compresses the corrugated hose 104, which can drive the plug-in tube 103 to move inside the polyurethane foaming agent tank body, so that the polyurethane foaming agent can be sprayed out from the internal position of the bending tube 1 and the hose 2, and at the same time, when replacing the hose 2, the hose 2 is rotated to make the hose 2 disengage from the peripheral position of the outer spiral tube 106. In this way, the sealing column 3 is no longer pushed by the hose 2, and the spring 303 will push the movable ring plate 301 to move upward inside the movable opening 105, and drive the sealing column 3 to move in the internal position of the bending tube 1, and at the same time, the through hole 304 on the side of the sealing column 3 will be moved to a position between the movable opening 105 and the bending tube 1, so that the inner wall of the bending tube 1 will block the through hole 304, so that the polyurethane foaming agent cannot continue to flow into the through hole 304, and the inner thread 201 of the hose 2 is screwed on the circumference of the outer thread 106, and then the lower end of the hose 2 will push the sealing column 3, so that the sealing column 3 moves downward inside the movable opening 105, so that the through hole 304 on the side of the sealing column 3 moves to the inside of the bending opening 107.

[0029] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A nozzle for a polyurethane foaming agent, comprising a curved tube (1), characterized in that: A corrugated hose (104) is fixed to the lower end of the bending tube (1), a plug-in tube (103) located inside the corrugated hose (104) is fixed inside the bending tube (1), a sealing column (3) is provided at the upper end of the bending tube (1), a movable opening (105) is provided on the inner side wall of the upper end of the bending tube (1), a movable ring plate (301) is fixed at the middle position of the peripheral side of the sealing column (3), a spring (303) sleeved on the peripheral side of the sealing column (3) is fixed on the lower surface of the movable ring plate (301), a rubber hose (2) is provided at the upper end of the bending tube (1), and a bending opening (107) is provided inside the bending tube (1) below the movable opening (105).

2. A spray head for polyurethane foaming agent according to claim 1, characterized in that: A sleeve (102) is fixed to the lower end of the corrugated hose (104), the lower end of the plug-in tube (103) is arranged in an inverted cone shape, and a handle (101) is fixed to the peripheral side of the curved tube (1) located above the corrugated hose (104).

3. A spray head for polyurethane foaming agent according to claim 2, characterized in that: The interior of the plug-in tube (103) is connected to the interiors of the bending tube (1) and the sleeve (102).

4. A spray head for polyurethane foaming agent according to claim 1, characterized in that: The peripheral side of the sealing column (3) is slidably connected to the inner wall of the bending tube (1), and the lower end of the spring (303) is fixed at the lower end surface of the movable port (105).

5. A spray head for polyurethane foaming agent according to claim 1, characterized in that: A spray hole (302) is provided in the middle of the upper end of the sealing column (3), and a plurality of through holes (304) evenly distributed in an annular shape are provided on the circumferential side of the lower end of the sealing column (3) beyond the movable opening (105), and the through holes (304) are connected to the inside of the spray hole (302).

6. A spray head for polyurethane foaming agent according to claim 1, characterized in that: An external spiral tube (106) is fixed to the upper end of the outer portion of the curved tube (1), and the inner diameter of the external spiral tube (106) is consistent with the diameter of the curved tube (1).

7. A spray head for polyurethane foaming agent according to claim 6, characterized in that: An inner thread opening (201) is provided at the lower end of the rubber hose (2), and the rubber hose (2) is spirally connected to the circumference of the outer spiral hose (106) through the inner thread opening (201).

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