CN216224941U

CN216224941U - Spraying tool

Info

Publication number: CN216224941U
Application number: CN202122256488.2U
Authority: CN
Inventors: 邓伏起; 关峰; 张晓川; 郭朝辉
Original assignee: Gunuo Tianjin Industrial Co ltd
Current assignee: Gunuo Tianjin Industrial Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-04-08
Anticipated expiration: 2031-09-17

Abstract

The utility model relates to a spraying tool, which comprises a tool main body, a hose and a blocking component, wherein the hose is arranged on the tool main body, the blocking position is arranged on the hose, the blocking component is arranged on the tool main body, the blocking component can extrude the blocking position of the hose, the flow area of spraying materials at the blocking position of the hose can be changed by controlling the extrusion degree of the blocking component on the hose, and the spraying amount of the spraying tools in unit time is further changed. This application extrudees the hose from the hose outside through the separation subassembly, does not have the connection interface between separation subassembly and the hose, consequently can not have the crack or seal not tight problem, can effectively stop the risk of spouting the material and leaking in spraying tool, uses more safe and reliable.

Description

Spraying tool

Technical Field

The utility model relates to the technical field of spraying, in particular to a spraying tool.

Background

The polyurethane foam material has good thermal insulation performance, good waterproof performance, good adhesive property and good aging resistance, so the polyurethane foam material is widely applied to the aspect of building construction. The polyurethane spray material is generally sprayed out by a spraying machine during construction, and can be foamed and solidified into a rigid foam material with waterproof and heat-insulating functions in a short time after being sprayed out.

The existing mechanical spraying tool is generally provided with a flow control valve, a conveying pipeline and other complex mechanisms, wherein the flow control valve is arranged on the conveying pipeline in a welding or threaded connection mode, the conveying pipeline is used for conveying spraying materials, and the flow control valve is used for adjusting the flow rate of the spraying materials in the conveying pipeline.

Due to the possibility of cracks in welding, the threaded connection has the problem of poor sealing, and therefore the risk of leakage of spray materials at the connection interface of the flow control valve and the conveying pipeline is easily caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a painting tool that solves the problem that the conventional painting tool is likely to cause leakage of the paint.

A spray tool for discharging spray, comprising:

a tool main body,

the hose is arranged on the tool main body, spraying materials can flow in the hose, and the hose is provided with a blocking position;

the separation assembly is mounted on the tool main body and can extrude the separation position of the hose, and the separation assembly can change the extrusion degree of the hose during movement so as to change the flow area of the spraying material at the separation position of the hose.

In one embodiment, the blocking assembly comprises a pushing member, the hose is arranged on one side of the pushing member, and the position of the pushing member can be adjusted along the radial direction of the hose to change the squeezing degree of the hose;

the pushing piece is provided with a first position along the radial direction of the hose, and in the first position, the pushing piece presses the hose until the hose is attached to the tool main body, and the flow area of the blocking position of the hose is zero.

In one embodiment, the pusher has a second position in the radial direction of the hose, in which the pusher releases the hose.

In one embodiment, the tool body comprises:

the hose is arranged in the spraying cavity, a guide hole is formed in the spraying cavity, and the pushing piece is arranged in the guide hole in a penetrating mode;

a handle, one end of which is connected with the spraying chamber;

the pressing handle is rotatably connected with one end, close to the spraying chamber, of the handle, and one end, far away from the hose, of the pushing piece is rotatably connected with the pressing handle; when the pressing handle rotates, the pushing piece can be driven to move so as to adjust the position along the radial direction of the hose.

The tool body includes:

a fixed block; and

and the pressing spring is arranged between the pushing piece and the fixed block, and the pushing piece can be kept at the first position by the elastic force applied to the pushing piece by the pressing spring.

In one embodiment, the tool body comprises a compression spring, one end of the compression spring is connected with the handle, the other end of the compression spring is connected with the pressing handle, and the elastic force of the compression spring enables the end, away from the spraying chamber, of the pressing handle to have a moving trend away from the handle.

In one embodiment, the tool body further comprises:

and the locking piece is used for locking the pushing piece at the first position, one end of the locking piece is rotatably connected with the handle, and the other end of the locking piece is detachably connected with the pressing handle.

In one embodiment, the spray tool further comprises:

a nozzle assembly disposed at one end of the tool body and connected to the hose.

In one embodiment, the number of hoses is at least two;

the spray tool further comprises a static mixer disposed within the nozzle assembly for mixing spray material within the at least two hoses.

In one embodiment, the nozzle assembly further comprises an elastic check sheet disposed between the static mixer and the hose, the elastic check sheet being used to prevent the mixed material in the static mixer from flowing back into the hose.

The spraying tool is provided with the tool main body, the hose and the blocking assembly, and the cross section of the blocking position of the hose is changed by controlling the extrusion degree of the blocking assembly to the hose, so that the spraying amount of the spraying tool in unit time is changed. This application extrudees the hose from the hose outside through the separation subassembly, does not have the connection interface between separation subassembly and the hose, consequently can not have the crack or seal not tight problem, can effectively stop the risk of spouting the material and leaking in spraying tool, uses more safe and reliable.

Drawings

FIG. 1 is a schematic view of an exemplary spray tool in a first position.

Reference numerals: 10-a tool body; 11-a spray chamber; 12-a handle; 13-pressing the handle; 14-fixing block; 20-a hose; 30-a pusher; 40-a locking element; 50-a nozzle assembly; 51-elastic check sheet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, a spraying tool includes a tool main body 10, a hose 20 and a blocking assembly, the hose 20 is disposed in the tool main body 10, spraying materials can flow through the hose 20, the hose 20 has a blocking position, and the blocking position can be any position on the hose 20; a blocking assembly is mounted to the tool body 10, the blocking assembly being capable of squeezing the blocking position on the hose 20.

In actual use, the hose 20 in the tool body 10 is first connected to the pressurizing bucket through the connecting pipe, and then the valve on the pressurizing bucket is opened, so that the spray material in the pressurizing bucket is pressed into the hose 20. By controlling the degree of squeezing the hose 20 by the barrier assembly, the flow area of the spray material at the barrier position of the hose 20 can be changed, thereby changing the amount of spray through the spray tool in unit time. This application extrudees hose 20 from hose 20 outside through the separation subassembly, does not have the connection interface between separation subassembly and the hose 20, consequently can not have the crack or seal not tight problem, can effectively stop to spout the risk of material leakage in spraying tool, uses safe and reliable more.

In some embodiments, the blocking assembly comprises a pushing member 30, the hose 20 is arranged on one side of the pushing member 30, and the pushing member 30 can adjust the position along the radial direction of the hose 20 to change the extrusion degree of the hose 20; the pushing member 30 has a first position in the radial direction of the hose 20, and in the first position, referring to fig. 1, the pushing member 30 presses the hose 20 until the hose 20 is attached to the tool body 10, and the flow area at the blocking position of the hose 20 is zero.

Specifically, the pushing member 30 can adjust the position in the radial direction of the hose 20, and can also adjust the position in a direction inclined to the radial direction of the hose 20. The position of the pushing element 30 can be any position along the direction of pushing the blocking position, and the pushing element 30 can change the extrusion degree of the hose 20 while adjusting the position, so that the flow area of the spraying material in the hose 20 can be adjusted, namely the flow rate per unit time in the spraying tool can be controlled. When the pushing member 30 moves to the first position along the radial direction of the hose 20, the flow rate of the spraying material in the hose is zero, i.e. the spraying tool is in a closed state.

Further, the pusher 30 has a second position in which the pusher 30 releases the hose 20. That is, the pushing member 30 has no pressing effect on the hose 20, and the flow area of the spraying material in the hose 20 is the largest, and the spraying amount of the spraying tool per unit time is the largest.

In another embodiment, the barrier assembly includes a pull cord that is looped around the hose, the pull cord having a first end and a second end. Can be fixed with one in first end or the second end and tool body, the other is not fixed, when using, the unfixed end of pulling stay cord, the diameter of stay cord diminishes promptly for through tightening up the hose, make the flow area of spouting the material in the hose change.

In some embodiments, the tool body 10 includes a spray chamber 11, a handle 12, and a press handle 13. The hose 20 is arranged in the spraying chamber 11, a guide hole is formed in the spraying chamber 11, and the pushing member 30 penetrates through the guide hole. One end of the handle 12 is connected to the spray chamber 11. The pressing handle 13 is rotatably connected with one end of the handle 12 close to the spraying chamber 11, and one end of the pushing piece 30 far away from the hose 20 is rotatably connected with the pressing handle 13, so that when the pressing handle 13 rotates around a rotating position, the pushing piece 30 can be driven to move to adjust the position along the radial direction of the hose 20.

Specifically, the pressing handle 13 and the handle 12 are rotatably connected to a first position point O, the pushing member 30 and the pressing handle 13 are rotated to a second position point P, and the diameter of the guide hole is larger than the diameter of the pushing member 30, i.e., the pushing member 30 is allowed to incline in the guide hole, so that the pushing member 30 can be prevented from being stuck in the guide hole when the pressing handle 13 rotates around the rotating position. Or, the aperture of the guide hole can be matched with the diameter of a pushing piece, the pushing piece comprises a first connecting rod (not shown) and a second connecting rod (not shown) hinged with the first connecting rod, when the press handle rotates, the first connecting rod and the second connecting rod rotate by corresponding angles, and the pushing piece can reciprocate in the guide hole when the press handle rotates.

The spraying amount of the spraying tool is controlled by the rotary connection of the handle 12 and the pressing handle 13, so that a worker can operate the spraying tool with one hand, and the spraying tool is convenient to use.

In some embodiments, tool body 10 includes a retention block 14 and a compression spring (not shown) disposed between pushing member 30 and retention block 14, wherein when pushing member 30 is in the first position, the elastic force applied to pushing member 30 by the compression spring is capable of maintaining pushing member 30 in the first position, i.e., when the spraying tool is unstressed, in the closed position, thereby preventing the spraying tool from automatically turning on after an operator connects the spraying tool to the bucket.

In other embodiments, the tool body includes a compression spring having one end connected to the handle and the other end connected to the press handle, the resilient force of the compression spring causing the end of the press handle remote from the spray chamber to have a tendency to move away from the handle. Through compression spring's driving force promptly, and then make pushing member can be stable through the pressure handle be in the primary importance, can prevent that the spraying instrument from opening automatically when not atress.

Further, in order to prevent the pushing member 30 from being unstable in the first position due to the failure of the compression spring or the compression spring, the tool body 10 further includes a locking member 40, i.e., the pressing handle 13 is locked by the locking member 40 when not in use, and the pressing handle 13 cannot rotate, i.e., the pushing member is locked in the first position, specifically, one end of the locking member 40 is rotatably connected to the handle 12, and the other end is detachably connected to the pressing handle 13. Wherein, the locking piece 40 is a rod piece, and the detachable connection can be that the rod piece is buckled with the pressing handle 13.

In some embodiments, the spray tool further comprises a nozzle assembly 50, the nozzle assembly 50 being disposed at one end of the tool body 10 and connected to the hose 20. Specifically, the nozzle assembly 50 is provided with a nozzle (not shown), and the thickness of the sprayed material sprayed from the nozzle can be changed by changing the diameter of the nozzle.

Further, the number of the hoses 20 is at least two, and the spraying tool further comprises a static mixer, the static mixer is arranged in the nozzle assembly 50, and the static mixer is used for mixing the spraying materials in the at least two hoses 20, namely the spraying tool can perform mixed spraying of multi-component spraying materials.

Further, the nozzle assembly 50 further includes an elastic check piece 51, the elastic check piece 51 is disposed between the static mixer (not shown) and the hose 20, and the elastic check piece 51 is used for preventing the mixed raw material in the static mixer from flowing back to the hose 20. By providing the elastic check piece 51, at the time of spraying, since the pressure on the side of the hose 20 is greater than the pressure in the static mixer, the elastic check piece can be bent so that the sprayed material in the hose 20 enters the static mixer; when the spraying process is paused, the pressure in the static mixer equals the pressure in the hose 20, the elastic non-return flap cannot bend, the elastic non-return flap blocks the static mixer from the hose, and the already mixed spray in the static mixer cannot flow back into the hose 20 or the spraying chamber 11, resulting in contamination of the material in the hose 20 or blockage of the spraying chamber 11. The spraying tool of this application can carry out the intensive mixing of multiple kind of material promptly, and does not cluster the material, does not block up, can start and stop at any time.

It should be noted that the spraying tool of the present application can be used for spraying polyurethane foam, but is not limited thereto. When the spraying device is used, the spraying tool is connected with the pressurizing material barrel made of the polyurethane foaming material, and then the blocking component is controlled, so that the material can be sprayed. Compared with the spraying tool which is provided with the air compressor and needs the external power supply when in use in the prior art, the spraying tool does not need the external power supply and does not need to be connected with the air compressor, so that the spraying tool is good in flexibility and convenient to carry.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A spray tool for discharging spray, comprising:

a tool main body,

the blocking assembly is mounted on the tool main body and can squeeze the blocking position of the hose, and the squeezing degree of the hose can be changed when the blocking assembly moves, so that the flow area of the blocking position of the hose can be changed.

2. The spray tool of claim 1, wherein the barrier assembly includes a pusher, the hose being disposed on one side of the pusher, the pusher being adjustable in position in a radial direction of the hose to vary the degree of squeezing of the hose;

3. The spray tool of claim 2 wherein the pusher has a second position in a radial direction of the hose, the pusher releasing the hose when in the second position.

4. The spray tool of claim 3, wherein the tool body comprises:

a handle, one end of which is connected with the spraying chamber; and

5. The spray tool of claim 4, wherein the tool body comprises:

a fixed block; and

6. The spray tool of claim 4, wherein the tool body comprises:

and one end of the compression spring is connected with the handle, the other end of the compression spring is connected with the pressing handle, and the elastic force of the compression spring enables the end, away from the spraying cavity, of the pressing handle to have a movement trend away from the handle.

7. The spray tool of claim 5 or 6, wherein the tool body further comprises:

8. The spray tool of claim 1, further comprising:

9. The spray tool of claim 8, wherein the number of hoses is at least two;

10. The spray tool of claim 9, wherein the nozzle assembly further comprises a resilient check tab disposed between the static mixer and the hose, the resilient check tab for preventing the material mixed in the static mixer from flowing back into the hose.