Safe welding equipment capable of being carried

Abstract

The invention relates to the technical field of welding machines, in particular to transportable safe welding equipment which comprises a machine body, a plurality of moving wheels are rotatably connected to the bottom end of the machine body, mounting grooves are formed in the front side and the rear side of the bottom end of the machine body, mounting plates are slidably connected into the mounting grooves, and a mounting block is fixedly connected to the bottom end of the mounting plate on the front side. The bottom end of the mounting plate on the rear side is fixedly connected with a filling block; the device has the beneficial effects that the mounting block is slidably mounted on the lower side of the machine body, and the cleaning brush is mounted at the bottom end of the mounting block, so that when the machine body moves, the ground in the advancing direction can be cleaned, the machine body and the moving wheels do not deviate or jolt when moving, the moving stability of the machine body is high, and after moving is completed, the machine body can move more stably. And the friction plates are in contact with the moving wheels, so that the moving wheels cannot rotate, the welding stability is higher, and the welding safety is higher.

Description

Technical Field

[0001] The invention relates to the technical field of welding machines, in particular to a portable safe welding device. Background Art

[0002] With the advancement of science and technology and the development of industry, the requirements for welding technology and equipment are getting higher and higher. For example, argon arc welding is based on the principle of ordinary arc welding. It uses argon gas to protect metal welding materials. High current is used to melt the welding materials into liquid on the substrate to form a molten pool. Argon gas is continuously supplied during high-temperature molten welding to prevent the welding materials from contacting with oxygen in the air, thereby preventing oxidation of the welding materials.

[0003] The welding equipment in the prior art is generally composed of a body, connecting pipes, plugs, welding heads and other structures. In order to improve the flexibility of the welding equipment, moving wheels are generally installed at the bottom of the body, so that the welding equipment can be conveniently moved and transported, so that it can be conveniently moved to a designated position, thereby avoiding the problem of insufficient length of the connecting pipes during welding, which affects the welding efficiency.

[0004] However, when the welding equipment is moved on slippery ground conditions or on ground conditions where there are tools such as welding wires that are not placed correctly, the moving wheels will be affected, thereby significantly reducing the grip, thereby reducing the moving stability of the welding equipment, causing it to deviate or shake when moving, thereby affecting the stability of the welding operation. Summary of the invention

[0005] The object of the present invention is to provide a portable safe welding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a portable safety welding equipment, comprising a body, the bottom end of the body is rotatably connected to a plurality of moving wheels, the front and rear sides of the bottom end of the body are provided with mounting grooves, the inside of the mounting groove is slidably connected with a mounting plate, the bottom end of the front mounting plate is fixedly connected with a mounting block, the bottom end of the rear mounting plate is fixedly connected with a filling block, the bottom end of the mounting block is fixedly connected with a cleaning brush, the rear side of the mounting block is slidably connected with two arc blocks, the end of the arc block away from the mounting block is fixedly connected with connecting rod 2, the end of the connecting rod 2 away from the arc block is fixedly connected with a placing plate, the end of the placing plate away from the connecting rod 2 is fixedly connected with connecting rod 1, the end of the connecting rod 1 away from the placing plate is fixedly connected with a friction plate, and the side of the friction plate away from the connecting rod 1 is in contact with the outside of the moving wheel.

[0007] Preferably, two placement grooves are opened on the inner side of the inner wall of the installation groove, the friction plate is slidably connected inside the placement groove, the outer sleeve of the connecting rod 2 is provided with an elastic member 1, one end of the elastic member 1 is fixedly connected to the inner wall of the placement groove, and the other end of the elastic member 1 is fixedly connected to the placement plate.

[0008] Preferably, a slide groove is provided inside the mounting block, a slide plate is slidably connected to the upper inner side of the slide groove, two push plates are hinged to the bottom end of the slide plate, a slider is hinged to the bottom end of the push plate, the bottom end of the slider is fitted with the lower side of the inner wall of the cleaning brush, and two push grooves are provided on the right side of the slide plate.

[0009] Preferably, a plurality of slots are provided inside the mounting block, a pull rod is fixedly connected to the right end of the slide plate, two limit slots 1 are provided inside the pull rod, a pull rope is slidably connected inside the limit slot 1, an elastic member 2 is sleeved on the outside of the pull rope, one end of the pull rope is fixedly connected to a limit plate, and an end of the limit plate away from the pull rope is fixedly connected to a card block.

[0010] Preferably, the mounting block is slidably connected to the interior of the front mounting groove, and the filling block is slidably connected to the interior of the rear mounting groove.

[0011] Preferably, the placement sheet is slidably connected to the inside of the placement groove, and the second connecting rod is slidably connected to the inside of the placement groove.

[0012] Preferably, the sliding block is slidably connected to the inner lower side of the sliding groove, and the arc block is slidably connected to the inside of the pushing groove.

[0013] Preferably, the pull rod is slidably connected to the inside of the slide slot, the limiting plate is slidably connected to the inside of the limiting slot 1, and the clamping block is clamped to the inside of the clamping slot.

[0014] Preferably, one end of the second elastic member is fixedly connected to the limiting plate, and the other end of the second elastic member is fixedly connected to the inner wall of the first limiting groove.

[0015] Preferably, a second limiting groove is provided on the right side of the pull rod, and a pull block is fixedly connected to the other end of the pull rope, and the pull block is slidably connected inside the second limiting groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a portable safe welding device. A mounting block is slidably installed on the lower side of a machine body, and a cleaning brush is installed at the bottom end of the mounting block. When the machine body moves, the ground in the moving direction can be cleaned, so that the machine body and the moving wheels will not deviate or bump during movement, so that the movement stability of the machine body is high. After the movement is completed, the friction plate is in contact with the moving wheel, so that the moving wheel will not rotate, thereby improving the welding stability and thus improving the welding safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of the present invention;

[0019] Figure 2 A top view of the present invention;

[0020] Figure 3 For the present invention Figure 2 Structural cross-section at AA in the middle;

[0021] Figure 4 For the present invention Figure 3 A magnified view of the structure at center;

[0022] Figure 5 This is a schematic diagram of the friction plate structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the installation block structure of the present invention;

[0024] Figure 7 For the present invention Figure 6 Structural cross-section at the middle BB;

[0025] Figure 8 For the present invention Figure 6 Structural cross-section at the middle CC;

[0026] Fig. 9 For the present invention Figure 8 A magnified view of the structure at B in the middle;

[0027] Fig.10 It is a schematic diagram of the structure of the machine body of the present invention;

[0028] Fig.11 For the present invention Fig.10 Structural cross-section at DD in the middle;

[0029] Fig.12 For the present invention Fig.11 A magnified view of the structure at C in the middle;

[0030] Fig.13 This is a schematic diagram of the structure of the cleaning brush of the present invention after being stored;

[0031] Fig.14 For the present invention Fig.13 Structural cross-section at EE;

[0032] Fig.15 For the present invention Fig.13 Structural cross-section at FF in the middle;

[0033] Fig.16 For the present invention Fig.15 Enlarged view of the structure at point D in the middle.

[0034] In the figure: 1, machine body; 2, mounting groove; 3, mounting block; 4, mounting plate; 5, moving wheel; 6, friction plate; 7, connecting rod 1; 8, cleaning brush; 9, filling block; 10, placement groove; 11, placement plate; 12, connecting rod 2; 13, elastic member 1; 14, arc block; 15, slide groove; 16, slider; 17, push plate; 18, slide plate; 19, push groove; 20, pull rod; 21, clamping groove; 22, clamping block; 23, limit groove 1; 24, limit plate; 25, pull rope; 26, elastic member 2; 27, pull block; 28, limit groove 2. DETAILED DESCRIPTION

[0035] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 16Embodiment 1: The present invention provides a technical solution: a portable safe welding device, including a body 1, on which a plug, a connecting pipeline, a welding head, an air inlet pipe and other structures are installed. When in use, the gas cylinder is tightened to connect to the gas source interface, and then the valve on the gas cylinder is opened, and the gas flow is adjusted using the pressure reducing valve, and then the welding gun is inserted into the welding gun socket of the welding machine, and then the power switch of the argon arc welding machine is turned on, and then the welding gun is aligned with the welding position to perform welding. The bottom end of the body 1 is rotatably connected to a plurality of moving wheels 5, and the moving wheels 5 enable the body 1 to be moved, and the moving wheels 5 can be driven by pulling the body 1. The wheels 5 rotate, so that the machine body 1 can be conveniently carried and moved. The front and rear sides of the bottom end of the machine body 1 are provided with mounting grooves 2. The interior of the mounting grooves 2 is slidably connected with mounting plates 4. The mounting grooves 2 limit the mounting plates 4, so that the mounting plates 4 can slide smoothly. The bottom end of the front mounting plate 4 is fixedly connected with a mounting block 3. The mounting block 3 is slidably connected to the interior of the front mounting groove 2. The mounting plate 4 and the mounting grooves 2 limit the mounting block 3, so that the mounting block 3 will not deviate when sliding. The bottom end of the rear mounting plate 4 is fixedly connected with a filling block 9. The filling block 9 is slidably connected to the interior of the rear mounting groove 2. The filling block 9 is fixedly connected to the interior of the rear mounting groove 2. The block 9 is used to fill the mounting groove 2, and two mounting blocks 3 can be installed inside the mounting groove 2 or the mounting block 3 can be installed inside any mounting groove 2. When one mounting block 3 is installed, the other mounting groove 2 can be filled with the filling block 9, so that the balance of the machine body 1 is better, and thus the stability of the machine body 1 is higher. A cleaning brush 8 is fixedly connected to the bottom end of the mounting block 3. The cleaning brush 8 is used to clean the ground in the direction of travel of the machine body 1, so that the middle part will not deviate or bump during the travel process, thereby making the movement stability higher. The rear side of the mounting block 3 is slidably connected to two arc blocks 14, so that the mounting block 3 can be To push the arc block 14 to move, one end of the arc block 14 away from the mounting block 3 is fixedly connected to the connecting rod 2 12, one end of the connecting rod 2 12 away from the arc block 14 is fixedly connected to the placement plate 11, one end of the placement plate 11 away from the connecting rod 2 12 is fixedly connected to the connecting rod 1 7, one end of the connecting rod 1 7 away from the placement plate 11 is fixedly connected to the friction plate 6, one side of the friction plate 6 away from the connecting rod 1 7 is in contact with the outside of the moving wheel 5, and the friction plate 6 is used to limit the moving wheel 5. When the friction plate 6 is in contact with the moving wheel 5, the moving wheel 5 will not rotate, thereby making the machine body 1 more stable in use.

[0037] When it is necessary to move the machine body 1, the arc block 14 is moved to the left side, so that the arc block 14 can drive the placement plate 11 to move away from the friction plate 6 through the connecting rod 2 12, and then the placement plate 11 can pull the friction plate 6 and the moving wheel 5 apart through the connecting rod 1 7, so that the moving wheel 5 is no longer restricted, and the cleaning brush 8 is moved downward so that the cleaning brush 8 can contact the ground. At this time, when the machine body 1 is moving, the cleaning brush 8 can clean the moving direction of the machine body 1, so that the ground in the moving direction is relatively tidy, so that the machine body 1 will not deviate or bump when moving, so that the movement stability is higher. After the movement is completed, the arc block 14 is moved in the opposite direction, so that the friction plate 6 can fit with the moving wheel 5, so that the moving wheel 5 can be limited. At this time, the moving wheel 5 will not rotate, so that the stability of the machine body 1 is further improved, so that the welding stability is higher, and the welding safety is higher.

[0038] Embodiment 2: On the basis of embodiment 1, in order to realize automatic pushing of the friction plate 6 to move, two placement grooves 10 are opened on the inner side of the inner wall of the installation groove 2, and the friction plate 6 is slidably connected inside the placement groove 10, and the placement groove 10 plays a limiting role on the friction plate 6, so that the friction plate 6 will not deviate when sliding, and the placement plate 11 is slidably connected inside the placement groove 10, and the placement groove 10 plays a limiting role on the placement plate 11, so that the placement plate 11 can slide smoothly, and the connecting rod 2 12 is slidably connected inside the placement groove 10, and the placement groove 10 plays a limiting role on the connecting rod 2 12, so that the connecting rod 2 12 will not deviate when sliding, and the outer sleeve of the connecting rod 2 12 is provided with an elastic member 13, one end of the elastic member 13 is fixedly connected to the inner wall of the placement groove 10, and the other end of the elastic member 13 is fixedly connected to the placement plate 11.

[0039] When the friction plate 6 is released, the elastic member 13 can perform a reset movement, so that the elastic member 13 can pull the placement plate 11 to move away from the moving wheel 5, so that the friction plate 6 and the moving wheel 5 can be separated. Conversely, by pushing the arc block 14 to move to the right, it can pull the elastic member 13 to deform through the placement plate 11, and the placement plate 11 can push the friction plate 6 to contact the moving wheel 5 through the connecting rod 7, so that the friction plate 6 can limit the moving wheel 5.

[0040] Embodiment 3: On the basis of embodiment 2, in order to conveniently push the cleaning brush 8 and the arc block 14, a slide groove 15 is provided inside the mounting block 3, and a slide plate 18 is slidably connected to the upper side of the inner part of the slide groove 15. The slide groove 15 limits the slide plate 18, so that the slide plate 18 will not deviate when sliding. Two push plates 17 are hinged at the bottom end of the slide plate 18, and a slider 16 is hinged at the bottom end of the push plate 17, so that the slide plate 18 can drive the slider 16 to move through the push plate 17 when moving. The slider 16 is slidably connected to the inner lower side of the slide groove 15, and the slide groove 15 limits the slider 16, so that the slider 16 will not deviate when sliding. The bottom end of the slider 16 fits with the lower side of the inner wall of the cleaning brush 8, so that the slider 16 can squeeze the cleaning brush 8 to produce deformation, and two push grooves 19 are provided on the right side of the slide plate 18, and the arc block 14 is slidably connected to the inside of the push groove 19, so that the push groove 19 can push the arc block 14 to slide.

[0041] When the slide plate 18 is pulled to move to the right, the arc block 14 is able to slide inside the push groove 19 and push the arc block 14 to move in the direction close to the friction plate 6. At the same time, the slide plate 18 is able to drive one end of the push plate 17 to move to the right, so that the other end of the push plate 17 is able to move upward under the reaction force, thereby pulling the slider 16 to move upward, so that the slider 16 no longer squeezes the cleaning brush 8, and the cleaning brush 8 is able to be reset to the inside of the mounting block 3. Conversely, when the slide plate 18 moves to the left, the arc block 14 is reset to the inside of the mounting block 3 under the reset movement of the elastic member 13, and the slider 16 is able to move downward and squeeze the cleaning brush 8 to produce deformation.

[0042] Embodiment 4: On the basis of embodiment 3, in order to realize the convenience of pulling the slide plate 18 and the pull rod 20 will not contact the external line when moving, a plurality of slots 21 are provided inside the mounting block 3, and the right end of the slide plate 18 is fixedly connected with the pull rod 20, and the pull rod 20 is used to pull the slide plate 18 to move, and the pull rod 20 is slidably connected inside the slide groove 15, and the slide groove 15 limits the pull rod 20, so that the pull rod 20 can slide smoothly, and two limiting grooves 23 are provided inside the pull rod 20, and the limiting groove 23 is slidably connected inside the limiting groove 23, and the limiting groove 23 limits the pull rope 25, so that the pull rope 25 can slide smoothly, and the outer sleeve of the pull rope 25 is provided with an elastic member 26, and one end of the pull rope 25 is fixedly connected with a limiting plate 24, and the limiting plate 24 is slidably connected to the limiting groove 23 The limit groove 23 is inside the limit plate 24, so that the limit plate 24 can slide smoothly, one end of the elastic member 26 is fixedly connected to the limit plate 24, and the other end of the elastic member 26 is fixedly connected to the inner wall of the limit groove 23, and the end of the limit plate 24 away from the pull rope 25 is fixedly connected with a clamping block 22, and the left side of the clamping block 22 is a circular arc block structure, so that the clamping block 22 can be conveniently moved to the left, and the clamping block 22 is clamped in the inside of the clamping groove 21, so that the pull rod 20 can be limited, and a limit groove 28 is provided on the right side of the pull rod 20, and the other end of the pull rope 25 is fixedly connected with a pull block 27, and the pull rope 25 is used to pull the pull block 27 to move, and the pull block 27 is slidably connected to the inside of the limit groove 28, and the limit groove 28 limits the pull block 27, so that the pull block 27 will not deviate when sliding.

[0043] When the slide plate 18 is pulled, the pull block 27 is buckled so that the pull block 27 can pull one end of the pull rope 25 to move to the right, and then the other end of the pull rope 25 can pull the limiting plate 24 to squeeze the elastic member 26, so that the elastic member 26 can be deformed, and the limiting plate 24 can pull the card block 22 out of the left card slot 21. When the left side of the pull block 27 is in contact with the right side of the inner wall of the limiting groove 28, the pull block 27 is continued to be pulled so that the pull block 27 can pull the pull rod 20 to move to the right, and then the pull rod 20 can pull the slide plate 18 to move to the right. When the right side of the slide plate 18 is in contact with the right side of the inner wall of the slide groove 15, the push plate 17 is released, so that the elastic member 26 can perform a reset movement, and then the elastic member 26 can push the card block 22 and the right card slot through the limiting plate 24. 21 is engaged with the inside of the friction plate 6 and the moving wheel 5, at this time, the friction plate 6 and the moving wheel 5 remain in a fitted state, so that the welding stability is relatively high. On the contrary, by directly pushing the pull rod 20 to move to the left, the arc of the block 22 can slide with the inside of the right-side slot 21, and then under the reaction force, the slot 21 can squeeze the elastic member 26 through the limit plate 24. When the right-side slot 21 is no longer in contact with the block 22, the pull rod 20 is continued to be pushed to the left, so that the pull rod 20 can drive the block 22 to slide inside the mounting block 3, and then when the left end of the slide plate 18 is in contact with the left side of the inner wall of the slide groove 15, the block 22 remains horizontal with the left-side slot 21, and then under the reset movement of the elastic member 26, the block 22 can be engaged with the inside of the left-side slot 21, so that the pull rod 20 will not extend out of the side wall of the body 1.

[0044] Embodiment 5: Based on Embodiment 4, a method for using a portable safety welding device is proposed, comprising the following steps:

[0045] Step 1: directly push the pull rod 20 to move to the left side, so that the arc of the block 22 can slide with the inside of the right side slot 21, and then under the reaction force, the slot 21 can be deformed by squeezing the elastic member 26 through the limit plate 24. When the right side slot 21 is no longer in contact with the block 22, the pull rod 20 is pushed to the left side, so that the pull rod 20 can drive the block 22 to slide inside the mounting block 3. When the left end of the slide plate 18 is in contact with the left side of the inner wall of the slide groove 15, the block 22 is kept horizontal with the left side slot 21, and then under the reset movement of the elastic member 26, the block 22 is engaged with the inside of the left side slot 21, so that the pull rod 20 does not extend out of the side wall of the body 1;

[0046] Step 2: When the slide plate 18 moves to the left, the slide plate 18 drives one end of the push plate 17 to move to the left, so that the other end of the push plate 17 moves downward under the reaction force, and then pushes the slider 16 to move downward, so that the slider 16 squeezes the cleaning brush 8 to deform and pushes the cleaning brush 8 to contact the ground;

[0047] Step 3: When the slide plate 18 moves to the left, the elastic member 13 is reset, so that the elastic member 13 pulls the placement sheet 11 to move away from the moving wheel 5, so that the friction sheet 6 is no longer in contact with the moving wheel 5, so that the moving wheel 5 can rotate, and the machine body 1 can move, and the direction of travel can be cleared, so that the machine body 1 and the moving wheel 5 will not deviate or bump when moving, so that the movement stability of the machine body 1 is higher;

[0048] Step 4: If welding is required, by buckling the pull block 27, the pull block 27 can pull one end of the pull rope 25 to move to the right, and then the other end of the pull rope 25 can pull the limiting plate 24 to squeeze the elastic member 26, so that the elastic member 26 can be deformed, and the limiting plate 24 can pull the block 22 out of the left side of the slot 21. When the left side of the pull block 27 is in contact with the right side of the inner wall of the limiting slot 28, the pull block 27 is continuously pulled, so that the pull block 27 can pull the pull rod 20 to move to the right, and then the pull rod 20 can pull the slide plate 18 to move to the right. When the right side of the slide plate 18 is in contact with the right side of the inner wall of the slide slot 15, the push plate 17 is released, so that the elastic member 26 can be reset, and then the elastic member 26 can push the block 22 to engage with the inside of the right side slot 21 through the limiting plate 24.

[0049] Step 5: When the slide plate 18 moves to the right, the arc block 14 is able to slide inside the push groove 19 and push the arc block 14 to move toward the direction close to the friction plate 6, so that the arc block 14 pulls the elastic member 13 through the placement plate 11 to deform, and the placement plate 11 pushes the friction plate 6 to fit the outside of the moving wheel 5 through the connecting rod 17, so that the moving wheel 5 does not rotate, thereby making the welding stability higher, thereby making the welding safety higher.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable safety welding device, comprising a body (1), wherein the bottom end of the body (1) is rotatably connected to a plurality of moving wheels (5), characterized in that: The front and rear sides of the bottom of the body (1) are provided with mounting grooves (2), the inside of the mounting grooves (2) is slidably connected with a mounting plate (4), the bottom end of the front mounting plate (4) is fixedly connected with a mounting block (3), the bottom end of the rear mounting plate (4) is fixedly connected with a filling block (9), the bottom end of the mounting block (3) is fixedly connected with a cleaning brush (8), the rear side of the mounting block (3) is slidably connected with two arc blocks (14), the end of the arc block (14) away from the mounting block (3) is fixedly connected with a second connecting rod (12), the end of the second connecting rod (12) away from the arc block (14) is fixedly connected with a placement plate (11), the end of the placement plate (11) away from the second connecting rod (12) is fixedly connected with a first connecting rod (7), the end of the first connecting rod (7) away from the placement plate (11) is fixedly connected with a friction plate (6), and the side of the friction plate (6) away from the first connecting rod (7) is in contact with the outside of the moving wheel (5).

2. A portable safety welding device according to claim 1, characterized in that: Two placement grooves (10) are provided on the inner side of the inner wall of the installation groove (2), the friction plate (6) is slidably connected inside the placement groove (10), and an elastic member (13) is sleeved on the outer side of the second connecting rod (12), one end of the elastic member (13) is fixedly connected to the inner wall of the placement groove (10), and the other end of the elastic member (13) is fixedly connected to the placement plate (11).

3. A portable safety welding device according to claim 2, characterized in that: A slide groove (15) is provided inside the mounting block (3), a slide plate (18) is slidably connected to the upper side of the slide groove (15), two push plates (17) are hingedly connected to the bottom end of the slide plate (18), a slider (16) is hingedly connected to the bottom end of the push plate (17), the bottom end of the slider (16) is in contact with the lower side of the inner wall of the cleaning brush (8), and two push grooves (19) are provided on the right side of the slide plate (18).

4. A portable safety welding device according to claim 3, characterized in that: A plurality of slots (21) are provided inside the mounting block (3); a pull rod (20) is fixedly connected to the right end of the slide plate (18); two limit slots (23) are provided inside the pull rod (20); a pull rope (25) is slidably connected inside the limit slot (23); an elastic member (26) is sleeved outside the pull rope (25); one end of the pull rope (25) is fixedly connected to a limit plate (24); and an end of the limit plate (24) away from the pull rope (25) is fixedly connected to a block (22).

5. The portable safety welding equipment according to claim 1, characterized in that: The mounting block (3) is slidably connected to the interior of the front mounting groove (2), and the filling block (9) is slidably connected to the interior of the rear mounting groove (2).

6. A portable safety welding device according to claim 2, characterized in that: The placement sheet (11) is slidably connected inside the placement groove (10), and the second connecting rod (12) is slidably connected inside the placement groove (10).

7. The portable safety welding equipment according to claim 3, characterized in that: The sliding block (16) is slidably connected to the lower side of the inner side of the sliding groove (15), and the arc block (14) is slidably connected to the inner side of the pushing groove (19).

8. The portable safety welding equipment according to claim 4, characterized in that: The pull rod (20) is slidably connected inside the slide groove (15), the limiting plate (24) is slidably connected inside the limiting groove 1 (23), and the clamping block (22) is clamped inside the clamping groove (21).

9. The portable safety welding equipment according to claim 4, characterized in that: One end of the second elastic member (26) is fixedly connected to the limiting plate (24), and the other end of the second elastic member (26) is fixedly connected to the inner wall of the first limiting groove (23).

10. The portable safety welding equipment according to claim 4, characterized in that: A second limiting groove (28) is provided on the right side of the pull rod (20), and a pull block (27) is fixedly connected to the other end of the pull rope (25), and the pull block (27) is slidably connected inside the second limiting groove (28).

Images