Novel welding and cutting eye surface protective cover and control circuit thereof

Abstract

The utility model discloses a novel welding and cutting eye surface protective cover and a control circuit thereof, comprising a helmet body, two sides of which are respectively provided with a first connecting hole; the face screen is connected to the helmet body; a head protection assembly; if the face screen is located at the protection position, the external welding and cutting equipment can be started through a switch of the external welding and cutting equipment, and if the face screen is located at the non-protection position, the external welding and cutting equipment cannot be started through the switch of the external welding and cutting equipment; and a worker can be timely urged to correctly wear the welding and cutting eye surface protective cover in time, so that the safety risk is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to electric welding auxiliary equipment, in particular to a novel welding eye and face protection cover and a control circuit thereof. Background Art

[0002] A helmet is a head protection device, mostly in the shape of a semicircle. A welding helmet plays a role in personal protection during welding. It can prevent the welder's head from being burned by arc ultraviolet rays, infrared rays and splashing beads.

[0003] However, when welders are performing welding operations, they may forget to wear helmets and directly perform welding and cutting operations, or some welders may not wear helmets properly when performing operations, resulting in injuries to the welders during welding and cutting operations.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a novel welding eye and face protective shield and a control circuit thereof, which can timely urge workers to wear the welding eye and face protective shield in a timely and correct manner, thereby reducing safety risks as much as possible.

[0006] A novel welding and cutting eye and face protective shield provided by the utility model comprises:

[0007] A helmet body, wherein first connecting holes are respectively formed on two sides of the helmet body;

[0008] A face shield connected to the helmet body;

[0009] A head protection assembly, mounted on the inner side of the helmet body;

[0010] A control circuit is installed on the head protection assembly, and the control circuit is electrically connected to an external welding and cutting device with a built-in switch. The control circuit is used to determine whether the helmet body is worn. If the helmet body is worn, the external welding and cutting device can be turned on through the built-in switch. If the helmet body is not worn, the external welding and cutting device cannot be turned on through the built-in switch.

[0011] In actual use, the operator wears the helmet on his head. When the face shield is in a non-protective position (the protective position refers to the face shield being directly in front of the operator's face and able to block sparks and fire radiation), when the operator presses the switch of the external welding and cutting equipment, the welding and cutting equipment cannot start working normally. Only when the operator correctly wears the face shield to the protective position can the welding and cutting equipment be turned on by its own switch, which effectively urges the operator to wear the welding and cutting eye and face protection shield in a timely and correct manner to minimize safety risks. At the same time, the protection of the operator's head is not only achieved by the helmet, but also depends on the head guard assembly.

[0012] Further, the head guard assembly is provided with two opposite ends, and the two ends of the head guard assembly are respectively provided with second connection holes corresponding to the first connection holes, and head spaces are formed in the two ends of the head guard assembly. The new welding eye and face shield also includes at least two connection components, which are respectively installed at the two ends of the head guard assembly and are used to connect the head guard assembly and the helmet body. The head guard assembly includes:

[0013] A forehead portion, wherein the forehead portion is provided with two ends corresponding to two sides of the helmet body, and the connecting components are respectively installed at the two ends of the forehead portion;

[0014] At least one top portion of the head, fixedly connected to the forehead portion;

[0015] The head space is formed between the forehead and the top of the head.

[0016] The head guard assembly protects the operator's head by relying on the forehead and the top of the head. When the operator's head is hit, the helmet body can absorb most of the impact force and effectively block the physical impact. At this time, the forehead and the top of the head can further provide cushioning to reduce the impact of the impact on the head.

[0017] Furthermore, the head protection assembly also includes a back of the head rotatably connected to the forehead, and the head space is formed between the forehead, the top of the head and the back of the head.

[0018] The back of the head setting can improve the protection of the back of the operator's head.

[0019] Furthermore, the forehead and the back of the head are U-shaped, the frontal portion and the side flanges of the back of the head are respectively correspondingly connected in rotation, and the connection components are respectively correspondingly installed on the side flanges of the forehead.

[0020] The flanges on both sides of the forehead and the back of the head are rotatably connected respectively, so that the relative positions of the forehead and the back of the head can be adjusted in real time when worn to adapt to the use of different operators.

[0021] The first flexible cushion layer can further reduce the impact of the impact force on the forehead during collision, and can also improve the actual use experience of the operator.

[0022] Furthermore, the connection component includes:

[0023] An insertion rod, wherein the first end of the insertion rod is located in the head space, a limiting portion is fixed to the first end of the insertion rod, the second end of the insertion rod passes through the second connecting hole and the first connecting hole in sequence, and the second end of the insertion rod is a threaded end;

[0024] A limit buckle is provided with an inner concave thread groove adapted to the threaded end. After the second end of the insertion rod passes through the second connecting hole and the first connecting hole in sequence, the limit buckle is threadedly connected to the threaded end accordingly.

[0025] The helmet body and the head guard assembly are mainly connected through the insertion rod and the limiting buckle of the connecting assembly. The threaded end of the insertion rod passes through the second connecting hole and the first connecting hole in turn and is screwed into the corresponding concave thread groove of the limiting buckle. The first end of the insertion rod is limited by the limiting part to ensure that the first end of the insertion rod is always in the head space to prevent the connecting assembly from falling off as a whole. It can be seen that the helmet body and the head guard assembly adopt a detachable connection method, that is, if the helmet body or the head guard assembly is damaged, it can be quickly and conveniently replaced.

[0026] Furthermore, the connecting assembly also includes gaskets respectively arranged between the first connecting hole and the second connecting hole and between the first connecting hole and the limiting buckle.

[0027] The gasket can make the screw connection more secure and also reduce the wear of the plug rod and the limit buckle.

[0028] The utility model also provides a control circuit of a novel welding eye and face protection shield as described above, comprising:

[0029] At least one judgment circuit, wherein the judgment circuit is provided with at least one push switch;

[0030] A working circuit, wherein the working circuit is connected to the judgment circuit;

[0031] The push switch is installed on the side of the forehead facing the head. When the helmet body is worn, the push switch is pressed, and the external welding and cutting equipment can be turned on through the built-in switch.

[0032] Furthermore, the judgment circuit is also provided with at least one reed switch and at least one magnet corresponding to the reed switch. When the helmet body is worn and the face shield is in the protection position, the press switch is pressed and the magnet approaches and acts on the reed switch, and the external welding and cutting equipment can be turned on by its own switch.

[0033] Furthermore, there are multiple judgment circuits, each of which is connected to the working circuit respectively. When the push switch of any one of the multiple judgment circuits is pressed and the reed switch is acted on, the external welding and cutting equipment can be turned on by its own switch.

[0034] It can be seen from this that there are multiple judgment circuits. If the operator wants to start the welding and cutting equipment normally, as long as any one of the multiple judgment circuits is connected, and to make the judgment circuit connected, the push switch and the reed switch must be closed at the same time. When the helmet is worn and the face shield is in the protective position, the push switch will be pressed and the magnet will act on the reed switch, so that the switch of the welding and cutting equipment can be turned on normally. The purpose of setting multiple judgment circuits is that if one of the judgment circuits fails, the remaining judgment circuits can still work, so as to achieve the effect of multiple insurance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a novel welding and cutting eye and face protection shield according to an embodiment of the utility model;

[0036] Figure 2 This is a schematic structural diagram of a helmet body according to an embodiment of the utility model;

[0037] Figure 3 This is a structural schematic diagram of the head protection assembly according to an embodiment of the utility model;

[0038] Figure 4 This is a structural disassembly diagram of the head protection assembly according to an embodiment of the utility model;

[0039] Figure 5 It is a structural schematic diagram of the head protection assembly described in an embodiment of the utility model.

[0040] In the figure, 1-helmet body; 2-first connecting hole; 3-visor; 4-head protection assembly; 41-forehead; 42-top of the head; 421-first limiting strip; 422-second limiting strip; 43-back of the head; 431-third limiting strip; 432-fourth limiting strip; 5-head space; 6-connecting assembly; 61-insertion rod; 62-limiting buckle; 63-gasket; 7-first flexible pad layer; 8-second flexible pad layer; 9-elastic convex buckle; 10-rack groove; 11-gear knob. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0042] See also Figure 1 , shows a new type of welding eye and face protection shield of the utility model, comprising:

[0043] Helmet body 1, such as Figure 2 As shown, first connecting holes 2 are respectively provided on both sides of the helmet body 1;

[0044] A face shield 3 connected to the helmet body 1;

[0045] A head protection assembly 4 is installed on the inner side of the helmet body 1;

[0046] The control circuit is installed on the head protection assembly 4. The control circuit is electrically connected to the external welding and cutting equipment with its own switch. The control circuit is used to determine whether the helmet body 1 is worn. If the helmet body 1 is worn, the external welding and cutting equipment can be turned on through the built-in switch. If the face shield 3 is in a non-protective position, the control circuit is disconnected from the external welding and cutting equipment, and the external welding and cutting equipment cannot be turned on through the built-in switch.

[0047] During actual use, the operator wears the helmet body 1 on his head. When the face shield 3 is in a non-protective position (the protective position refers to the position where the face shield 3 is directly in front of the operator's face and can block sparks and fire radiation), when the operator presses the switch of the external welding and cutting equipment, the welding and cutting equipment cannot start working normally. Only when the operator correctly wears the face shield 3 to the protective position can the welding and cutting equipment be turned on by the built-in switch, which effectively urges the operator to wear the welding and cutting eye and face protection shield in time and correctly to minimize safety risks. At the same time, the protection of the operator's head is not only achieved by the helmet body 1, but also depends on the head protection assembly 4.

[0048] It is worth mentioning that the connection between the face shield 3 and the helmet body 1 can be detachable or fixed. For the detachable type, there are many ways. For example, a plurality of wire grooves are opened at the bottom of the helmet body 1, and a plurality of plug-in strips corresponding to the wire grooves extend from the top of the face shield 3. The plug-in strips can be inserted into the wire grooves accordingly. The specific method is not limited to this.

[0049] The head guard assembly 4 is provided with two opposite ends, and the two ends of the head guard assembly 4 are respectively provided with second connection holes corresponding to the first connection holes 2, and a head space 5 is formed in the two ends of the head guard assembly 4. The new welding eye and face shield also includes at least two connection components 6, which are respectively installed at the two ends of the head guard assembly 4 and are used to connect the head guard assembly 4 and the helmet body 1. Figure 3 and Figure 4 , the head protection assembly 4 includes:

[0050] The forehead portion 41 has two opposite ends, and the connecting components 6 are respectively installed at the two ends of the forehead portion 41;

[0051] At least one top portion 42, fixedly connected to the forehead portion 41;

[0052] A head space 5 is formed between the forehead portion 41 and the top portion 42 .

[0053] The head protection component 4 relies on the forehead 41 and the top of the head 42 to protect the operator's head. When the operator's head is hit, the helmet body 1 can absorb most of the impact force and effectively block the physical impact. At this time, the forehead 41 and the top of the head 42 can further provide cushioning to reduce the impact of the impact on the head.

[0054] like Figure 3 and Figure 4 As shown, two head tops 42 may be provided.

[0055] The head protection assembly 4 further includes a back of the head 43 rotatably connected to the forehead 41 , and a head space 5 is formed between the forehead 41 , the top of the head 42 and the back of the head 43 .

[0056] The provision of the back of the head 43 can improve the protection of the back of the head of the operator.

[0057] In order to further enhance the protection of the operator's head, a second flexible cushion layer 8 is connected to the back of the head 43 .

[0058] It is worth noting that, combined with Figure 4 The forehead 41, the top of the head 42 and the back of the head 43 provided by the utility model are all made of stretchable materials, for example, they can be plastic or synthetic fibers or other stretchable materials. Therefore, the top of the head 42 provided by the utility model includes a first limiting strip 421 and a second limiting strip 422 respectively connected to the two ends of the forehead 41, the first limiting strip 421 and the second limiting strip 422 are staggered and fitted with each other, and the second limiting strip 422 is provided with a row of through holes along the length direction. An elastic convex buckle 9 is fixed on the first limiting strip 421. After the first limiting strip 421 and the second limiting strip 422 are fitted in place up and down, the elastic convex buckle 9 passes through the corresponding through hole to achieve buckling, so that the tightness of the top of the head 42 can be adjusted.

[0059] The forehead portion 41 and the back of the head 43 are U-shaped, and the flanges on both sides of the forehead portion 41 and the back of the head 43 are correspondingly connected for rotation, and the connecting components 6 are correspondingly installed on the flanges on both sides of the forehead portion 41.

[0060] The two side flanges of the forehead portion 41 and the back of the head 43 are rotatably connected respectively, so that the relative positions of the forehead portion 41 and the back of the head 43 can be adjusted in real time when worn to adapt to the use of different operators.

[0061] Similarly, the tightness of the top of the head 42 can be adjusted, and the back of the head 43 can also be adjusted. Figure 4 The back of the head 43 includes two sections of a third limiting strip 431 and a fourth limiting strip 432 which are rotatably connected to the flanges on both sides of the forehead part 41, respectively. The third limiting strip 431 and the fourth limiting strip 432 are staggered and fitted with each other. The third limiting strip 431 and the fourth limiting strip 432 are respectively provided with corresponding rack grooves 10 along their length directions. A gear knob 11 is rotatably engaged in the rack groove 10. One end of the gear knob 11 is a gear that is adapted to mesh with the rack groove 10. By rotating the gear knob 11 clockwise or counterclockwise, the third limiting strip 431 and the fourth limiting strip 432 can be moved away from or towards each other, thereby realizing the adjustment of the tightness of the back of the head 43.

[0062] The forehead portion 41 is wrapped with a first flexible cushion layer 7 .

[0063] The first flexible cushion layer 7 can further reduce the impact of the impact force on the forehead during collision, and can also improve the actual use experience of the operator.

[0064] Combination Figure 4 , the connection component 6 comprises:

[0065] The first end of the plug rod 61 is located in the head space 5, the first end of the plug rod 61 is fixed to the limiting portion, the second end of the plug rod 61 passes through the second connecting hole and the first connecting hole 2 in sequence, and the second end of the plug rod 61 is a threaded end;

[0066] The limiting buckle 62 is provided with an inner concave thread groove adapted to the threaded end. After the second end of the insert rod 61 passes through the second connecting hole and the first connecting hole 2 in sequence, the limiting buckle 62 is screwed correspondingly to the threaded end.

[0067] The helmet body 1 and the head guard assembly 4 are mainly connected by the insertion rod 61 and the limiting buckle 62 of the connecting assembly 6. The threaded end of the insertion rod 61 passes through the second connecting hole and the first connecting hole 2 in turn and is screwed correspondingly to the inner concave thread groove of the limiting buckle 62. The first end of the insertion rod 61 is limited by the limiting part to ensure that the first end of the insertion rod 61 is always in the head space 5 to prevent the connecting assembly 6 from falling off as a whole. It can be seen that the helmet body 1 and the head guard assembly 4 adopt a detachable connection method, that is, when the helmet body 1 or the head guard assembly 4 is damaged, it can be quickly and conveniently replaced.

[0068] The connecting assembly 6 further includes gaskets 63 which are respectively arranged between the first connecting hole 2 and the second connecting hole and between the first connecting hole 2 and the limiting buckle 62 .

[0069] The gasket 63 can make the threaded connection more secure and also reduce the wear of the insert rod 61 and the limit buckle 62 .

[0070] The utility model also provides a control circuit of a novel welding eye and face protection shield as described above, comprising:

[0071] At least one judgment circuit, wherein the judgment circuit is provided with at least one push switch;

[0072] A working circuit, the working circuit is connected with the judging circuit;

[0073] The push switch is installed on the side of the forehead portion 41 facing the head. When the helmet body 1 is worn, the push switch is pressed, and the external welding and cutting equipment can be turned on through the built-in switch.

[0074] Based on this, the judgment circuit is also provided with at least one reed switch and at least one magnet corresponding to the reed switch. When the helmet body 1 is worn and the face shield 3 is in the protection position, the press switch is pressed and the magnet approaches and acts on the reed switch, and the external welding and cutting equipment can be turned on by its own switch.

[0075] There are multiple judgment circuits, each of which is connected to the working circuit respectively. When the push switch of any one of the multiple judgment circuits is pressed and the reed switch is acted upon, the external welding and cutting equipment can be turned on by the built-in switch.

[0076] It can be seen from this that there are multiple judgment circuits. If the operator wants to start the welding and cutting equipment normally, as long as any one of the multiple judgment circuits is connected, and to make the judgment circuit connected, the push switch and the reed switch must be closed at the same time. When the helmet body 1 is worn and the face shield 3 is in the protection position, the push switch will be pressed and the magnet will act on the reed switch, so that the switch of the welding and cutting equipment can be turned on normally. The purpose of setting multiple judgment circuits is that if one of the judgment circuits fails, the remaining judgment circuits can still work, so as to achieve the effect of multiple insurance.

[0077] It is worth noting that the above control circuit can be implemented in the following manners. For example, when the push switch is not pressed and the reed switch is not acted upon by a magnet, it is in an open state. That is, when there is no external action, the contacts are separated, and the circuit is judged to be open at this time.

[0078] When the push switch is pressed, the reed switch is acted upon by the magnet, and its contacts are closed, judging that the circuit is connected. The working circuit sends a control signal, so that the welding and cutting equipment can be turned on by its own switch.

[0079] Of course, it can also be achieved in other ways. For example, the push switch is in a closed state when it is not pressed and the reed switch is not acted upon by a magnet. That is to say, when there is no external action, its contacts are in contact, the judgment circuit is connected, and the working circuit sends a control signal so that the welding and cutting equipment cannot be turned on by its own switch; when the push switch is pressed and the reed switch is acted upon by a magnet, its contacts are disconnected, the judgment circuit is disconnected, and the working circuit sends a control signal so that the welding and cutting equipment can be turned on by its own switch.

[0080] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A new type of welding and cutting eye and face protective mask, characterized in that: include: A helmet body, wherein first connecting holes are respectively formed on two sides of the helmet body; A face shield connected to the helmet body; A head protection assembly, mounted on the inner side of the helmet body; A control circuit is installed on the head protection assembly, and the control circuit is electrically connected to an external welding and cutting device with a built-in switch. The control circuit is used to determine whether the helmet body is worn. If the helmet body is worn, the external welding and cutting device can be turned on through the built-in switch. If the helmet body is not worn, the external welding and cutting device cannot be turned on through the built-in switch.

2. The new welding and cutting eye and face protection mask according to claim 1 is characterized in that: The head guard assembly is provided with two opposite ends, and the two ends of the head guard assembly are respectively provided with second connection holes corresponding to the first connection holes, and head spaces are formed in the two ends of the head guard assembly. The novel welding eye and face shield also includes at least two connection components, which are respectively installed at the two ends of the head guard assembly and are used to connect the head guard assembly and the helmet body. The head guard assembly includes: A forehead portion, wherein the forehead portion is provided with two ends corresponding to two sides of the helmet body, and the connecting components are respectively installed at the two ends of the forehead portion; At least one top portion of the head, fixedly connected to the forehead portion; The head space is formed between the forehead and the top of the head.

3. The new welding and cutting eye and face protection mask according to claim 2 is characterized in that: The head protection assembly also includes a back of the head portion rotatably connected to the forehead portion, and the head space is formed between the forehead portion, the top of the head and the back of the head.

4. The new welding and cutting eye and face protection mask according to claim 3 is characterized in that: The forehead and the back of the head are U-shaped, and the flanges on both sides of the forehead and the back of the head are correspondingly connected in rotation, and the connecting components are correspondingly installed on the flanges on both sides of the forehead.

5. The new welding and cutting eye and face protection mask according to claim 2 or 4 is characterized in that: The connection component comprises: An insertion rod, wherein the first end of the insertion rod is located in the head space, a limiting portion is fixed to the first end of the insertion rod, the second end of the insertion rod passes through the second connecting hole and the first connecting hole in sequence, and the second end of the insertion rod is a threaded end; A limit buckle is provided with an inner concave thread groove adapted to the threaded end. After the second end of the insertion rod passes through the second connecting hole and the first connecting hole in sequence, the limit buckle is threadedly connected to the threaded end accordingly.

6. The new welding and cutting eye and face protection mask according to claim 5 is characterized in that: The connecting assembly also includes gaskets respectively arranged between the first connecting hole and the second connecting hole and between the first connecting hole and the limiting buckle.

7. A control circuit for a new type of welding eye and face protection mask as claimed in any one of claims 1 to 6, characterized in that: include: At least one judgment circuit, wherein the judgment circuit is provided with at least one push switch; A working circuit, wherein the working circuit is connected to the judgment circuit; The push switch is installed on the side of the forehead facing the head. When the helmet body is worn, the push switch is pressed, and the external welding and cutting equipment can be turned on through the built-in switch.

8. The control circuit of the new welding and cutting eye and face protection mask according to claim 7 is characterized in that: The judgment circuit is also provided with at least one reed switch and at least one magnet corresponding to the reed switch. When the helmet body is worn and the face shield is in the protection position, the push switch is pressed and the magnet approaches and acts on the reed switch, and the external welding and cutting equipment can be turned on by the built-in switch.

9. The control circuit of the new welding and cutting eye and face protection mask according to claim 8 is characterized in that: There are multiple judgment circuits, each of which is connected to the working circuit respectively. When the push switch of any one of the multiple judgment circuits is pressed and the reed switch is acted upon, the external welding and cutting equipment can be turned on by its own switch.

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