Purification and air supply integrated welding protective helmet

Abstract

The utility model belongs to the technical field of protective helmets, and particularly relates to a purification and air supply integrated welding protective helmet which comprises a helmet body, a protective mask, a filter element, an air blower, a cover plate and a power source. The protective mask is arranged on the front side of the helmet body, a concave cavity is formed in one side of the helmet body, air holes are formed in the bottom wall of the concave cavity, the filter element is arranged in the concave cavity, the cover plate covers an opening of the concave cavity, the filter element is limited in the concave cavity, and a through hole is formed in the cover plate. The air blower is arranged on the other side of the bottom wall, an air inlet of the air blower covers an opening of the air hole, and an air outlet faces the inner side of the helmet body. The power source is arranged in the helmet body and used for being electrically connected with the air blower. The air blower, the power supply, the filter element and the like are arranged in the helmet main body, so that the action of the worker is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective helmets, and particularly relates to a purification and air supply integrated welding protective helmet. Background Art

[0002] Welding protective helmets are applied in the field of electric welding machines and are used to reasonably protect workers, preventing their heads, faces, and eyes from being injured. A welding helmet generally includes a peeping main body and a welding protective face shield. During welding, the welding protective face shield needs to be flipped down to cover the human face, thereby protecting the human face and eyes.

[0003] For example, the Chinese patent document with the publication number CN111132575B discloses a protective headgear with adjustable air supply, which actually discloses a welding protective helmet, including: a protective helmet that defines an internal space, includes an inward main surface, and includes a forward window with a pane; a head suspension that is connected to the helmet; and an air supply module that is at least partially installed in the internal space defined by the helmet. The air supply module includes a central main trunk, a lateral right main trunk, and a lateral left main trunk. The central main trunk, the lateral right main trunk, and the lateral left main trunk are configured such that when the module is installed in the internal space defined by the helmet, a selected central region, a left region, and a right region of the inward main surface of the helmet are combined with the central main trunk, the lateral left main trunk, and the lateral right main trunk of the air supply module to respectively define a central air supply channel and a lateral left air supply channel and a lateral right air supply channel for delivering air to the wearer of the protective headgear. And the air supply module includes an external remote handle that is remotely connected to an air valve, and the air valve is adapted to operate to control the rate of guiding air into the central air supply channel compared with the rate of guiding air into the lateral left air supply channel and the lateral right air supply channel.

[0004] In the technical solution disclosed in the above patent document, the protective helmet needs to be connected to an independent air supply module through an air pipe to provide purified air inside the helmet. However, the hose connection will limit the movement range of the worker and cause inconvenience to the worker's movement. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a purification and air supply integrated welding protective helmet to solve the problem that the existing welding helmet causes inconvenience to the worker's movement by connecting an external air purification module.

[0006] To achieve the above object, an integrated purification and air supply welding protection helmet provided by an embodiment of the present utility model is used for electric welding protection; it includes a helmet main body, a protection mask, a filter element, a blower, a cover plate and a power supply; the protection mask is arranged on the front side of the helmet main body, a concave cavity is arranged on one side of the helmet main body, air holes are arranged on the bottom wall of the concave cavity, the filter element is arranged in the concave cavity, the cover plate covers the mouth of the concave cavity and limits the filter element in the concave cavity, and through holes are arranged on the cover plate; the blower is arranged on the other side of the bottom wall, and the air inlet of the blower covers the mouth of the air hole, and the air outlet faces the inner side of the helmet main body; the power supply is arranged inside the helmet main body and is used for electrically connecting the blower.

[0007] Further, the concave cavity is arranged on the back side of the helmet main body.

[0008] Further, an inner shell is also arranged on one inner side of the helmet main body. The inner shell and the bottom wall enclose an isolation cavity. The blower and the power supply are arranged in the isolation cavity, and the air outlet of the blower passes through the inner shell.

[0009] Further, a bottom plate is arranged at the bottom end of the inner shell. The bottom plate seals the bottom of the isolation cavity; a battery compartment extending into the isolation cavity is arranged on the bottom plate, and the power supply is arranged in the battery compartment.

[0010] Further, the blower is a centrifugal blower and is arranged on one side of the bottom wall. The air inlet of the centrifugal blower is hermetically communicated with the air hole, and the air outlet of the centrifugal blower extends upward in a curved manner and passes through the inner shell.

[0011] Further, an air duct is also arranged on the top side inside the helmet main body. One end of the air duct is sleeved on the air outlet of the blower, and the other end extends to the front side inside the helmet main body; the helmet main body is of a single-layer structure.

[0012] Further, a bracket is arranged at the bottom front end of the helmet main body. The bracket is provided with an oblong hole, and a convex ring extends upward from the edge of the oblong hole. The mouth of the air duct is sleeved on the convex ring, so that the bracket supports the air duct.

[0013] Further, a limit switch is also arranged on the inner side of the helmet main body. One end of the limit switch passes through the bottom wall and extends into the concave cavity to limit the filter element, so that a cavity is formed between the filter element and the bottom wall, and the limit switch controls the blower to be powered on.

[0014] Further, a groove is arranged on one side of the concave cavity. One end of the limit switch extends into the groove, and an extension part is arranged on one side of the filter element. The extension part extends into the groove.

[0015] One or more of the above technical solutions in the purification and air supply integrated welding protection helmet provided by the embodiments of the present utility model have at least the following technical effects:

[0016] Since the blower, filter element, power supply, etc. are arranged inside the helmet body; the power supply directly supplies power to the blower to operate, so that the outside air is filtered by the filter element and then transported to the inside of the helmet body by the blower, realizing the purification and air supply inside the helmet. Because the blower, power supply, filter element, etc. are arranged inside the helmet body, the staff can move conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a structural diagram of the purification and air supply integrated welding protection helmet provided by the embodiments of the present utility model.

[0019] Figure 2 It is an internal structural diagram of the purification and air supply integrated welding protection helmet provided by the embodiments of the present utility model.

[0020] Figure 3 It is a sectional view of the purification and air supply integrated welding protection helmet provided by the embodiments of the present utility model.

[0021] Figure 4 It is an exploded view of the purification and air supply integrated welding protection helmet provided by the embodiments of the present utility model.

[0022] Figure 5 It is a structural diagram of the filter element part of the purification and air supply integrated welding protection helmet provided by the embodiments of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation of the present utility model.

[0024] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.

[0025] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0026] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] In an embodiment of the integrated purification and air supply welding protection helmet of the present utility model, please refer to Figures 1 to 4; The integrated purification and air supply welding protection helmet of this embodiment is used for welding protection and plays a protective role for the head, face and eyes of the staff. Specifically, the integrated purification and air supply welding protection helmet includes a helmet main body 100, a protective face shield 200, a filter element 300, a blower 400, a cover plate 500 and a power supply 600. The protective face shield 200 is arranged on the front side of the helmet main body 100. There is a concave cavity 101 on one side of the helmet main body 100. There are air holes 103 on the bottom wall 102 of the concave cavity 101. The filter element 300 is arranged in the concave cavity 101. The cover plate 500 covers the opening of the concave cavity 101 and limits the filter element 300 in the concave cavity 101. There is a through hole 501 on the cover plate 500. The blower 400 is arranged on the other side of the bottom wall 102, and the air inlet of the blower 400 covers the opening of the air hole 103, and the air outlet faces the inside of the helmet main body 100; the power supply 600 is arranged inside the helmet main body 100 and is used for electrically connecting the blower 400. The integrated purification and air supply welding protection helmet of this embodiment is directly powered by the power supply 600 to operate the blower 400, so that the outside air is inhaled into the concave cavity 101, and after being filtered by the filter element 300, it is transported by the blower 400 to the inside of the helmet main body 100, realizing the purification and air supply inside the helmet. Because the blower 400, the power supply 600, the filter element 300, etc. are arranged inside the helmet main body 100 and form an integral structure, it is very convenient for the staff to wear, use and move.

[0028] Furthermore, the concave cavity 101 is arranged on the back side of the helmet main body 100. Therefore, the filter element 300, the blower 400 and the power supply 600 are all arranged on the back side of the helmet main body 100, so that it can play a counterweight effect on the protective face shield 200 on the front side of the helmet main body 100, ensuring the balance of the front and back forces of the helmet main body 100 and making it more convenient and comfortable to wear.

[0029] Furthermore, please refer to Figures 2 to 4 , there is also an inner shell 700 on one inner side of the helmet main body 100. The inner shell 700 and the bottom wall 102 enclose an isolation cavity 104. The blower 400 and the power supply 600 are arranged in the isolation cavity 104, and the air outlet of the blower 400 passes through the inner shell 700. The inner shell 700 is arranged on the inner side of the helmet main body 100, and the blower 400, the power supply 600, etc. are arranged on the inner side of the inner shell 700. One is to protect electronic components such as the blower 400 and the power supply 600, and the other is to increase the fitting degree between the helmet and the human head and increase the wearing comfort.

[0030] Furthermore, please refer to Figures 2 to 4, a bottom plate 701 is provided at the bottom end of the inner shell 700, and the bottom plate 701 seals the bottom of the isolation cavity 104. The bottom plate 701 is provided with a battery compartment extending into the isolation cavity 702, and the power supply 600 is arranged in the battery compartment 702. In this embodiment, the battery compartment 702 is arranged on the bottom side of the bottom plate 701, which is convenient for replacing the battery. Moreover, since the bottom plate 701 is arranged on the bottom side of the inner shell 700, the structure of the helmet main body 100 will be simpler and the production cost will be lower.

[0031] Further, referring to Figure 4 , the blower 400 is a centrifugal fan and is arranged on one side of the bottom wall 102. The air inlet of the centrifugal fan is hermetically communicated with the air hole 103, and the air outlet of the centrifugal fan extends upward in a curved manner and passes through the inner shell 700.

[0032] Further, please refer to Figures 2 to 4 , a wind pipe 800 is further arranged on the top side inside the helmet main body 100. One end of the wind pipe 800 is sleeved on the air outlet of the blower 400, and the other end extends to the front side inside the helmet main body 100; the helmet main body 100 is a single-layer structure. In this embodiment, the air inhaled by the blower 400 is conveyed to the front side of the head main body 100 through the wind pipe 800, so that it can directly blow to the face and mouth and nose of the human body, which can increase the comfort of the human body. In addition, by using the wind pipe 800 to convey the air flow, the helmet main body 100 can be a single-layer structure without a sandwich layer, making the structure of the helmet main body 100 simpler and the production cost lower.

[0033] Further, please refer to Figure 2 and Figure 4 , a bracket 110 is provided at the bottom front end of the helmet main body 100. The bracket 110 is provided with an oblong hole 111, and a convex ring 112 extends upward from the edge of the oblong hole 111. The mouth of the wind pipe 800 is sleeved on the convex ring 112, so that the bracket 110 supports the wind pipe 800.

[0034] Furthermore, please refer to Figure 1 and Figure 4, a limit switch 900 is further provided on the inner side of the helmet main body 100. One end of the limit switch 900 passes through the bottom wall 102 and extends into the cavity 101 for limiting the filter element 300, so that a cavity is formed between the filter element 300 and the bottom wall. By forming a cavity between the filter element 300 and the bottom wall 102 of the cavity 101, it will not cause the filter element 300 to filter only the area covered by the air holes 103, but the entire area of the filter element 300 filters the air. The service life of the filter element 300 can be extended. In addition, the limit switch 900 controls the power-on of the blower 400. In this embodiment, only when the filter element 300 is assembled in the groove 101 and assembled to the set position can the limit switch 900 be triggered and the blower 400 can be powered on and operate. If the filter element 300 is not assembled in place, the limit switch 900 cannot be triggered, so the blower 400 is not powered on, avoiding the problem that there is a gap between the filter element 300 and the side of the cavity 101 and the air cannot be completely filtered.

[0035] Further, please refer to Figure 1 and Figure 5 , a groove 105 is provided on one side of the cavity 101. One end of the limit switch 900 extends into the cavity 101. One side of the filter element 300 is provided with an extension 301, and the extension 301 extends into the cavity 101. In this embodiment, it can prevent the limit switch 900 from contacting the filtering part of the filter element 300, and by setting the extension 301 to cooperate with the groove 105, the problem of misalignment of the filter element 300 during assembly can be prevented.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding protective helmet with integrated purification and air supply, used for electric welding protection; characterized in that: It includes a helmet body, a protective mask, a filter element, a blower, a cover plate and a power supply; the protective mask is arranged on the front side of the helmet body, a concave cavity is arranged on one side of the helmet body, a wind hole is arranged on the bottom wall of the concave cavity, the filter element is arranged in the concave cavity, the cover plate covers the mouth of the concave cavity and limits the filter element in the concave cavity, and the cover plate is provided with a through hole; the blower is arranged on the other side of the bottom wall, and the air inlet of the blower covers the mouth of the wind hole, and the air outlet faces the inner side of the helmet body; the power supply is arranged inside the helmet body for electrically connecting the blower.

2. The integrated purification and air supply welding protective helmet according to claim 1, characterized in that: The concave cavity is arranged on the back side of the helmet body.

3. The integrated purification and air supply welding protective helmet according to claim 1, characterized in that: An inner shell is also provided on an inner side of the helmet body. The inner shell and the bottom wall form an isolation cavity. The blower and the power supply are arranged in the isolation cavity, and the air outlet of the blower passes through the inner shell.

4. The integrated purification and air supply welding protective helmet according to claim 3 is characterized in that: A bottom plate is provided at the bottom end of the inner shell, and the bottom plate seals the bottom of the isolation cavity; the bottom plate is provided with a battery compartment extending into the isolation cavity, and the power source is arranged in the battery compartment.

5. The integrated purification and air supply welding protective helmet according to claim 4 is characterized in that: The blower is a centrifugal fan and is arranged on one side of the bottom wall. The air inlet of the centrifugal fan is sealed and connected to the air hole, and the air outlet of the centrifugal fan extends upward in a curved manner and passes through the inner shell.

6. The integrated purification and air supply welding protective helmet according to claim 5, characterized in that: An air duct is also provided on the top side of the interior of the helmet body, one end of the air duct is sleeved on the air outlet of the blower, and the other end extends to the front side of the interior of the helmet body; the helmet body has a single-layer structure.

7. The integrated purification and air supply welding protective helmet according to claim 6, characterized in that: A bracket is provided at the bottom side of the front end of the helmet body, and the bracket is provided with a flat hole. A convex ring extends upward from the edge of the flat hole, and the mouth of the air duct is sleeved on the convex ring so that the bracket supports the air duct.

8. The integrated purification and air supply welding protective helmet according to any one of claims 1 to 7, characterized in that: A limit switch is also provided on the inner side of the helmet body, one end of which passes through the bottom wall and extends into the concave cavity, and is used to limit the filter element so that the filter element and the bottom wall form a cavity, and the limit switch controls the blower to be powered on.

9. The integrated purification and air supply welding protective helmet according to claim 8, characterized in that: A groove is provided on one side of the cavity, and one end of the limit switch extends into the groove; an extension portion is provided on one side of the filter element, and the extension portion extends into the groove.

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