Smoke suction welding gun capable of adjusting suction force
By installing an adjustable positioned smoker at the front end of the bent neck of the smoking welding gun and setting an adjustable air intake hole on the handle of the welding gun, the problem that the existing smoking welding gun cannot adapt to the diverse welding methods and inconvenient suction adjustment is solved, and flexible adjustment of the suction force of the smoking mouth and the efficiency of smoke and dust discharge are achieved.
Patent Information
- Application Number
- CN202421866489.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing smoking welding guns cannot adapt to the diverse welding methods, and the suction adjustment is inconvenient, which makes it difficult to effectively discharge smoke and dust during welding operations, increasing the health risks of welders.
A smoking welding torch with adjustable suction is designed. By installing an adjustable positional smoking mouthpiece at the front end of the bent neck and setting an adjustable air inlet hole on the handle of the welding torch, flexible adjustment of the suction force of the smoking mouthpiece is achieved.
The design can adapt to a variety of welding methods, simplify the suction adjustment process, improve the efficiency of smoke discharge, and reduce the health risks of welders.
Smart Images
Figure CN222890678U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding guns, and in particular relates to a smoking welding gun with adjustable suction force. Background Art
[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials by heating at high temperature or high pressure. There are many sources of energy for modern welding, including gas flame, arc, laser, electron beam, friction and ultrasound.
[0003] Carbon dioxide gas shielded welding has been widely used in the machinery manufacturing industry of shipbuilding, automobile production, and rail transit manufacturing. In large-scale machinery and equipment manufacturing industries such as shipbuilding and locomotive production, there are many welders and long working hours, which easily generate a large amount of welding smoke; and the welding operation point is not fixed and sometimes it is necessary to enter the cabin and locomotive for welding. The internal space of the cabin and locomotive is complex and small, and it is difficult to set up local exhaust and comprehensive ventilation facilities, which makes it difficult to effectively discharge the large amount of welding smoke generated by the welding operation. The concentration of welding smoke that welders are exposed to is seriously exceeded, increasing the risk of welders suffering from pneumoconiosis.
[0004] At present, a fume extraction pipe is often installed in the welding cable to timely absorb the fume generated at the welding point source, and discharge the welding fume through the fume extraction pipe to the outside or environmental protection filtering equipment. The existing fume extraction welding gun has the following problems:
[0005] 1. The mouthpiece is directly fixed to the welding gun handle, and the position of the mouthpiece cannot be adjusted, making it difficult to adapt to various welding methods;
[0006] 2. It is necessary to adjust the suction force of the suction pump at the tail of the welding cable (smoking channel) to adjust the suction force of the smoking nozzle. During the welding process, the staff frequently moves back and forth between the welding point and the suction pump, which makes it inconvenient to adjust the suction force of the smoking nozzle. Utility Model Content
[0007] In view of the above-mentioned shortcomings, the utility model provides a suction welding gun with adjustable suction, by installing a suction nozzle at the front end of the bent neck and providing a plurality of mounting holes on the suction nozzle, so as to facilitate adjustment of the position of the suction nozzle relative to the bent neck, and adapt to various welding methods. By providing an air inlet hole on the welding gun handle and providing a sliding cover capable of adjusting the opening degree of the air inlet hole at the air inlet hole, the suction of the suction nozzle can be easily adjusted.
[0008] The utility model is realized by the following technical solutions:
[0009] A suction welding gun with adjustable suction force comprises a welding gun head and a welding cable, wherein a suction flow channel is arranged in the welding cable, and a suction pump connected to the suction flow channel is arranged at one end of the suction flow channel, the welding gun head comprises a welding gun handle, a bent neck fixed to the front end of the welding gun handle, and a nozzle protruding from the bent neck, an annular space is formed between the bent neck and the nozzle, and an internal space connected to the suction flow channel and the annular space is formed inside the welding gun handle, and the smoking welding gun also comprises a smoking nozzle, the smoking nozzle comprises a cylindrical tube sleeved to the bent neck and a conical smoking tube sleeved to the nozzle, and a plurality of mounting holes are arranged on the cylindrical tube along the extension direction of the cylindrical tube, and a limiting protrusion is arranged on the bent neck and plugged into the mounting hole, so as to adjust the position of the smoking nozzle relative to the bent neck, so as to adapt to more welding methods. An air inlet is provided on the welding gun handle and a sliding cover is installed at the air inlet, the sliding cover is slidably connected to the welding gun handle, and the sliding cover slides along the welding gun handle to adjust the degree of blocking of the air inlet by the sliding cover, so as to adjust the suction force of the smoking nozzle.
[0010] Furthermore, the mounting holes are distributed along the circumferential direction of the cylindrical tube, and adjacent mounting holes have no overlapping parts on the cross section of the cylindrical tube, so as to reduce the influence of the mounting holes on the structural strength of the cylindrical tube.
[0011] Furthermore, the conical smoking pipe is provided with a plurality of strip smoking holes, and the strip smoking holes are evenly distributed along the circumferential direction of the conical smoking pipe, so as to achieve the adsorption of smoke and dust in all directions around the welding point.
[0012] Furthermore, the limiting protrusion is elastically mounted to the side wall of the curved neck, and the limiting protrusion has a snapping state of being snapped into the mounting hole and a squeezing state of extending into the inner wall of the curved neck. The elastic limiting protrusion is used to facilitate adjustment of the position of the smoking nozzle relative to the curved neck.
[0013] Furthermore, a slide groove is opened on the inner side of the outer wall of the welding gun handle, and the slide cover is slidably connected to the slide groove. The slide cover has a blocking state that completely blocks the air inlet hole, a non-blocking state that does not block the air inlet hole at all, and an adjustment state that partially blocks the air inlet hole.
[0014] Furthermore, an air intake mark is embedded on the inner side of the sliding cover to provide a reminder to the staff.
[0015] Furthermore, a welding switch is installed on one side of the welding gun handle. The welding switch is located on the side of the welding gun handle away from the sliding cover, which is convenient for the staff to slide and adjust the sliding cover during the welding process.
[0016] Furthermore, the welding gun handle is connected to the welding cable through a ball head, which facilitates the adjustment of the posture of the welding gun handle and improves the comfort of welding operations.
[0017] Furthermore, a smoke filter is provided at the outlet of the suction pump, and the smoke filter can absorb smoke in the smoking flow path to achieve environmentally friendly treatment of the smoke.
[0018] Beneficial effects of the utility model:
[0019] 1. By installing a smoking nozzle at the front end of the bent neck and providing a plurality of mounting holes on the smoking nozzle, the position of the smoking nozzle relative to the bent neck can be adjusted to adapt to various welding methods;
[0020] 2. An air inlet hole is provided on the welding gun handle, and a sliding cover capable of adjusting the opening degree of the air inlet hole is provided at the air inlet hole, so that the suction force of the smoking nozzle can be adjusted easily. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A connection diagram for illustrating a schematic implementation of a suction welding gun with adjustable suction force in the utility model;
[0022] Figure 2 A schematic structural diagram for illustrating a schematic implementation of a suction welding gun with adjustable suction force in the utility model;
[0023] Figure 3 To illustrate Figure 2 A partial enlarged schematic diagram in the middle;
[0024] Figure 4 To illustrate Figure 2 A partial enlarged schematic diagram of point B in the middle;
[0025] Figure 5 A structural schematic diagram for illustrating another exemplary embodiment of a suction welding gun with adjustable suction force in the utility model;
[0026] Figure 6 A side view for illustrating a schematic embodiment of a suction welding gun with adjustable suction in the utility model;
[0027] Figure 7 A cross-sectional view for illustrating a schematic embodiment of a suction welding gun with adjustable suction in the utility model;
[0028] Figure 8 To illustrate Figure 7 A partial enlarged schematic diagram of point C in the middle.
[0029] List of parts and reference numerals:
[0030] 1. Welding gun head; 11. Welding gun handle; 111. Air inlet; 112. Slide; 12. Bending neck; 121. Limiting protrusion; 13. Nozzle; 14. Annular space; 15. Internal space; 16. Sliding cover; 161. Air inlet mark; 17. Welding switch; 2. Welding cable; 21. Smoking flow channel; 3. Smoking nozzle; 31. Columnar tube; 311. Mounting hole; 32. Conical smoking tube; 321. Strip smoking hole. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] It should be noted that the directional terms such as left, right, up, down, front and back in the embodiments of the present invention are merely relative concepts or are based on the normal use state of the product, that is, the direction of movement of the product, and should not be considered as limiting.
[0033] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of the present invention are not only changes in position, but also include movements such as rotation and rolling where there is no relative change in position but a change in state.
[0034] Finally, it should be noted that when a component is referred to as being "located" or "set on" another component, it can be on the other component or there can be an intermediate component at the same time. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be an intermediate component at the same time.
[0035] like Figures 1 to 8 The smoking welding gun with adjustable suction force shown in the figure comprises a welding gun head 1 and a welding cable 2, wherein a smoking channel 21 is arranged in the welding cable 2, and a suction pump connected to the smoking channel 21 is arranged at one end of the smoking channel 21, the welding gun head 1 comprises a welding gun handle 11, a bent neck 12 fixed to the front end of the welding gun handle 11, and a nozzle 13 protruding from the bent neck 12, an annular space 14 is formed between the bent neck 12 and the nozzle 13, an internal space 15 connected to the smoking channel 21 and the annular space 14 is formed inside the welding gun handle 11, and the smoking welding gun also comprises a smoking nozzle 3, the smoking nozzle 3 comprises a cylindrical tube 31 sleeved to the bent neck 12 and a conical smoking tube 32 sleeved to the nozzle 13, a plurality of mounting holes 311 are arranged on the cylindrical tube 31 along the extension direction of the cylindrical tube 31, and a limiting protrusion 121 inserted into the mounting hole 311 is arranged on the bent neck 12, so as to adjust the position of the smoking nozzle 3 relative to the bent neck 12 and adapt to more welding methods. An air inlet hole 111 is provided on the welding gun handle 11 and a sliding cover 16 is installed at the air inlet hole 111. The sliding cover 16 is slidably connected to the welding gun handle 11. The sliding cover 16 slides along the welding gun handle 11 to adjust the blocking degree of the sliding cover 16 on the air inlet hole 111, so as to adjust the suction force of the smoking nozzle 3.
[0036] In one embodiment, a worker holds the welding gun handle 11 to perform welding operations on a workpiece. The smoke generated during the welding process passes through the mouthpiece 3, the annular space 14 between the bent neck 12 and the nozzle 13, the internal space 15 of the welding gun handle 11, and the smoking channel 21 in the welding cable 2, and is discharged to the outside of the smoking welding gun. Among them, the suction pump provides suction for the mouthpiece 3 to extract the smoke. During the carbon dioxide gas shielded welding operation, it is necessary to frequently adjust the suction of the welding smoke at the mouthpiece 3 due to the influence of the welding material, welding position and welding environment. It should be noted that the length of the welding cable 2 is generally between 5 meters and 30 meters. The worker needs to move back and forth between the welding position and the position of the suction pump to adjust the suction of the mouthpiece 3 to the smoke, which is very troublesome. Therefore, by opening an air inlet hole 111 on the welding gun handle 11 and adjusting the opening degree of the air inlet hole 111 through the sliding cover 16, when the suction force of the suction pump is constant, the airflow originally flowing into the smoking channel 21 is changed to the gas absorbed at the smoking nozzle 3 and the gas absorbed at the air inlet hole 111, thereby increasing the air inlet opening, thereby alleviating the suction force of the air pump on the smoking nozzle 3, and realizing the adjustment of the suction force of the gas at the smoking nozzle 3.
[0037] In one embodiment, with the development of diversified welding methods, different requirements are placed on the position of the strip-shaped inhalation hole 321 of the mouthpiece 3 and the position of the welding point, so as to better suck the welding smoke into the mouthpiece 3. Therefore, multiple connection methods are provided between the mouthpiece 3 and the curved neck 12, that is, multiple mounting holes 311 are provided on the mouthpiece 3, and the position of the mouthpiece 3 is adjusted by changing the mounting holes 311 matched with the limiting protrusion 121, so as to adapt to various welding methods of the welding gun.
[0038] Preferably, the mounting holes 311 are distributed along the circumferential direction of the cylindrical tube 31 , and adjacent mounting holes 311 have no overlapping parts in the cross section of the cylindrical tube 31 , so as to reduce the influence of the mounting holes 311 on the structural strength of the cylindrical tube 31 .
[0039] Preferably, the conical smoking pipe 32 is provided with a plurality of strip-shaped smoking holes 321, and the strip-shaped smoking holes 321 are evenly distributed along the circumferential direction of the conical smoking pipe 32, so as to achieve the adsorption of smoke in all directions around the welding point.
[0040] Preferably, the limiting protrusion 121 is elastically mounted to the side wall of the curved neck 12, and the limiting protrusion 121 has a snap-fitting state of being snapped into the mounting hole 311 and an extruding state of being extended into the inner wall of the curved neck 12. The elastic limiting protrusion 121 is used to facilitate adjustment of the position of the smoking nozzle 3 relative to the curved neck 12.
[0041] In one embodiment, the limiting protrusion 121 is an elastic button. When the limiting protrusion 121 is in an extruded state (pressed state), the mouthpiece 3 can slide relatively along the curved neck 12; when the limiting protrusion 121 is in a clamped state, the limiting protrusion 121 extends into the mounting hole 311 to limit the movement of the mouthpiece 3 relative to the curved neck 12.
[0042] Preferably, a slide groove 112 is opened on the inner side of the outer wall of the welding gun handle 11, and the slide cover 16 is slidably connected to the slide groove 112. The slide cover 16 has a blocked state in which the air inlet hole 111 is completely blocked, a non-blocked state in which the air inlet hole 111 is not blocked at all, and an adjustment state in which part of the air inlet hole 111 is blocked.
[0043] Preferably, an air intake mark 161 is embedded on the inner side of the sliding cover 16 to provide a reminder to the staff.
[0044] Preferably, a welding switch 17 is installed on one side of the welding gun handle 11. The welding switch 17 is located on the side of the welding gun handle 11 away from the sliding cover 16, so that the staff can slide and adjust the sliding cover 16 during the welding process.
[0045] In one embodiment, when a worker holds the welding gun handle 11 , he or she may press the welding gun switch with his or her index finger and push and slide the sliding cover 16 with his or her thumb.
[0046] Preferably, the welding gun handle 11 is connected to the welding cable 2 via a ball head, which facilitates adjustment of the posture of the welding gun handle 11 and improves the comfort of the welding operation.
[0047] Preferably, a smoke filter is also provided at the outlet of the suction pump, and the smoke filter can absorb the smoke in the smoking flow channel 21 to achieve environmentally friendly treatment of the smoke.
[0048] When the above-mentioned suction welding gun with adjustable suction is used, the position of the suction nozzle 3 relative to the bent neck 12 can be adjusted by installing the suction nozzle 3 at the front end of the bent neck 12 and setting a plurality of mounting holes 311 on the suction nozzle 3, so as to adapt to various welding methods. The suction of the suction nozzle 3 can be adjusted by opening an air inlet 111 on the welding gun handle 11 and setting a sliding cover 16 capable of adjusting the opening degree of the air inlet 111 at the air inlet 111.
[0049] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims
1. A suction welding gun with adjustable suction, comprising a welding gun head and a welding cable, wherein a smoking channel is arranged in the welding cable, and a suction pump connected to the smoking channel is arranged at one end of the smoking channel, the welding gun head comprises a welding gun handle, a bent neck fixed to the front end of the welding gun handle, and a nozzle protruding from the bent neck, an annular space is formed between the bent neck and the nozzle, and an internal space connected to the smoking channel and the annular space is formed inside the welding gun handle, characterized in that: The smoking welding gun also includes a smoking nozzle, which has a cylindrical tube sleeved on the bent neck and a conical smoking tube sleeved on the nozzle, a plurality of mounting holes are provided on the cylindrical tube along the extension direction of the cylindrical tube, and a limiting protrusion inserted into the mounting hole is provided on the bent neck, an air inlet hole is opened on the welding gun handle and a sliding cover is installed at the air inlet hole, the sliding cover is slidably connected to the welding gun handle, and the sliding cover slides along the welding gun handle to adjust the degree of blocking of the air inlet hole by the sliding cover.
2. A suction welding gun with adjustable suction according to claim 1, characterized in that: The mounting holes are distributed along the circumferential direction of the cylindrical tube, and adjacent mounting holes have no overlapping parts in the cross section of the cylindrical tube.
3. A suction welding gun with adjustable suction according to claim 1, characterized in that: The conical smoking pipe is provided with a plurality of strip-shaped smoking holes, and the strip-shaped smoking holes are evenly distributed along the circumferential direction of the conical smoking pipe.
4. A suction welding gun with adjustable suction according to claim 1, characterized in that: The limiting protrusion is elastically mounted to the side wall of the bent neck, and the limiting protrusion has a clamping state of being clamped into the mounting hole and a squeezing state of extending into the inner wall of the bent neck.
5. The suction welding gun with adjustable suction according to claim 1, characterized in that: A slide groove is provided on the inner side of the outer wall of the welding gun handle, and the slide cover is slidably connected to the slide groove. The slide cover has a blocking state in which the air inlet hole is completely blocked, a non-blocking state in which the air inlet hole is not blocked at all, and an adjustment state in which part of the air inlet hole is blocked.
6. A suction welding gun with adjustable suction according to claim 1, characterized in that: An air intake mark is embedded on the inner side of the sliding cover.
7. A suction welding gun with adjustable suction according to claim 1, characterized in that: A welding switch is installed on one side of the welding gun handle, and the welding switch is located on a side of the welding gun handle away from the sliding cover.
8. The suction welding gun with adjustable suction according to claim 1, characterized in that: The welding gun handle is connected to the welding cable via a ball head.
9. The suction welding gun with adjustable suction according to claim 1, characterized in that: A smoke filter is also provided at the outlet of the suction pump, and the smoke filter can absorb smoke in the smoking flow channel.