Quick connection structure of heating torch

Abstract

The utility model discloses a heating torch quick connection structure, which relates to the technical field of heating torches, and comprises a base, a mounting hole is arranged at the front end of the base, a first sealing surface is arranged at the bottom end of the mounting hole, a rectangular nozzle is inserted into the mounting hole, a second sealing surface matched with the first sealing surface is arranged at the end part of the rectangular nozzle, and the first sealing surface and the second sealing surface are matched with each other. An inserting-connecting groove is formed in the side wall of the rectangular nozzle, a limiting block matched with the inserting-connecting groove is fixedly installed at the bottom end of the installation hole, a positioning groove is formed in the side portion of the inserting-connecting groove, and a locking block matched with the positioning groove is movably installed on the side wall of the base. According to the design scheme, through the design that the limiting block is fixedly installed at the bottom end of the installation hole, the inserting groove of the rectangular nozzle is aligned with the limiting block, the rectangular nozzle is inserted into the installation hole, circumferential positioning is conducted on the rectangular nozzle under the cooperation of the limiting block and the inserting groove, the rectangular nozzle is prevented from rotating in the using process, and therefore the welding quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating torch technical field especially a kind of heating torch quick connection structure. BACKGROUND

[0002] Heating torch is used for the tool of equipment's fuse welding, surface treatment and local heating. The fire hole component of prior art heating torch is fixed on nozzle, and cannot be easily disassembled.

[0003] CN 220169453 U discloses a kind of heating torch quick connection structure, including: torch body;Quick connection component, it includes base, movable seat and locking piece, the base is connected with the torch body, the base has accommodating cavity and moving channel, the moving channel is communicated with the accommodating cavity, the movable seat is set in the base and can be moved relative to the base, the movable seat has locking protrusion and unlocking recess;Torch nozzle has locking slot, when the torch nozzle is inserted into the accommodating cavity and the locking piece is aligned with the locking slot, the locking piece can be inserted into the locking slot to limit the torch nozzle movement, when the locking piece is retracted the wall surface of the accommodating cavity, the torch nozzle can be inserted into the accommodating cavity. Above-mentioned heating matrix in urgent need of replacement torch nozzle, staff can adjust the position of movable seat relative to base according to own needs, to drive locking piece to move along moving channel and protrude or retract the wall surface of accommodating cavity, so that the quick replacement of torch nozzle can be realized.

[0004] But the connection of above-mentioned heating torch torch nozzle and base is sealed by sealing ring, to prevent gas from leaking from the gap between torch nozzle and base, since heating torch is gradually heated after long time use, so as to cause sealing ring to be deformed by heat, affect sealing performance, and torch nozzle can rotate freely on base, and torch nozzle is easy to rotate during welding, so as to affect welding quality. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a kind of heating torch quick connection structure.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: a kind of heating torch quick connection structure, including base, the front end of the base is provided with mounting hole, the bottom end of the mounting hole is equipped with first sealing surface, torch nozzle is inserted into the mounting hole, the end of the torch nozzle is equipped with the second sealing surface matched with first sealing surface, the sidewall of the torch nozzle is provided with insertion slot, the bottom end of the mounting hole is fixedly installed with the limiting block matched with insertion slot, the side of the insertion slot is equipped with positioning slot, the sidewall of the base is movably installed with the locking block matched with positioning slot.

[0007] Further, an arc-shaped through groove is formed on the outer wall of the base, the arc-shaped through groove is communicated with the mounting hole, two groups of limiting holes are formed on the side wall of the arc-shaped through groove away from the first sealing surface, and the two groups of limiting holes are respectively aligned with the middle portions of the plug-in groove and the positioning groove.

[0008] Further, a dialing rod is fixedly connected to one end of the locking block away from the torch nozzle, the dialing rod is slidingly installed in the arc-shaped through groove, an installation groove is formed on the side wall of the dialing rod, a limiting knob is movably installed in the installation groove, a spring is arranged between the limiting knob and the installation groove, and the end of the limiting knob away from the installation groove is an arc-shaped surface.

[0009] Further, a rotating ring is fixedly installed at one end of the dialing rod away from the locking block, an annular groove is formed on the outer wall of the base, the rotating ring is installed in the annular groove in a matched mode, and a plurality of anti-skid bosses are arranged on the outer wall of the rotating ring.

[0010] Further, an extrusion block is fixedly installed at one end of the locking block close to the first sealing surface, the extrusion block is a flexible soft block, and a fillet surface is arranged at the end point of the extrusion block.

[0011] The utility model discloses the beneficial effect is:

[0012] The utility model discloses the beneficial effect is: BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model discloses further explained in connection with the drawings and examples.

[0014] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the front view of the utility model;

[0016] Figure 3 It is the left view of the utility model;

[0017] Figure 4 It is Figure 3 It is the sectional structure schematic diagram of A-A direction;

[0018] Figure 5 It isFigure 3 A schematic view of a sectional structure in the B-B direction;

[0019] Figure 6 For Figure 4 A local enlarged view of the C region;

[0020] Figure 7 A schematic view of the structure of the base of the utility model;

[0021] Figure 8 A schematic view of the structure of the square nozzle of the utility model;

[0022] Figure 9 A schematic view of the structure of the locking block of the utility model.

[0023] In the figure: 1. base, 11. mounting hole, 12. first sealing surface, 13. arc-shaped through slot, 14. limiting hole, 15. annular groove, 2. square nozzle, 21. second sealing surface, 22. insertion slot, 23. positioning slot, 3. limiting block, 4. locking block, 41. lever, 42. mounting slot, 43. limiting knob, 44. spring, 5. extrusion block, 51. rounded surface, 6. screw ring, 61. anti-slip boss. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings. Obviously, the drawings described below are only one embodiment of the utility model, and for those skilled in the art, other embodiments can be obtained according to the drawings and the embodiment without creative labor, and all belong to the protection scope of the utility model.

[0025] According to Figures 1-9 As shown in the figure, a kind of heating torch quick connection structure, including base 1, the front end of the base 1 is provided with mounting hole 11, the bottom end of the mounting hole 11 is equipped with first sealing surface 12, square nozzle 2 is inserted in the mounting hole 11, the end of the square nozzle 2 is equipped with the second sealing surface 21 matched with first sealing surface 12, insertion slot 22 is opened on the side wall of the square nozzle 2, the bottom end of the mounting hole 11 is fixedly installed with the limiting block 3 matched with insertion slot 22, the side of insertion slot 22 is equipped with positioning slot 23, the side wall of the base 1 is movably installed with the locking block 4 matched with positioning slot 23.

[0026] In the embodiment, the locking block 4 is fixedly installed with an extrusion block 5 near one end of the first sealing surface 12, the extrusion block 5 is a flexible soft block, and the end point of the extrusion block 5 is provided with a rounded surface 51. When the locking block 4 moves into the positioning groove 23, the rounded surface 51 is used for transition, so that the locking block 4 can smoothly move into the positioning groove 23. When the locking block 4 moves into the positioning groove 23, the extrusion block 5 abuts against the right end surface of the positioning groove 23, and the extrusion block 5 extrudes and fixes the rectangular rod 2 to the bottom end of the mounting hole 11.

[0027] In the embodiment, the base 1 is provided with an arc-shaped through groove 13 on the outer wall, the arc-shaped through groove 13 is communicated with the mounting hole 11, two groups of limiting holes 14 are formed on the side wall of the arc-shaped through groove 13 away from the first sealing surface 12, the two groups of limiting holes 14 are respectively aligned with the middle portions of the plug-in groove 22 and the positioning groove 23, a lever 41 is fixedly connected to the end of the locking block 4 away from the rectangular rod 2, the lever 41 is slidingly installed in the arc-shaped through groove 13, an installation groove 42 is formed in the side wall of the lever 41, the installation groove 42 is aligned with the limiting hole 14 when the lever 41 moves to the limit position of the arc-shaped through groove 13, a limiting knob 43 is movably installed in the installation groove 42, a spring 44 is arranged between the limiting knob 43 and the installation groove 42, the end of the limiting knob 43 away from the installation groove 42 is an arc-shaped surface, the limiting knob 43 is clamped into the limiting hole 14 under the action of the spring 44, the cooperation between the limiting knob 43 and the limiting hole 14 prevents the lever 41 from freely rotating in the arc-shaped through groove 13, so as to fix the position of the locking block 4.

[0028] In the embodiment, a screw ring 6 is fixedly installed at the end of the lever 41 away from the locking block 4, a ring-shaped recess 15 is formed in the outer wall of the base 1, the screw ring 6 is fitted into the ring-shaped recess 15, a plurality of anti-skid bosses 61 are arranged on the outer wall of the screw ring 6, the friction between the fingers and the screw ring 6 is increased through the anti-skid bosses 61, and a user rotates the screw ring 6 to rotate the lever 41 in the arc-shaped through groove 13, so as to adjust the opening and closing positions of the limiting knob 43.

[0029] The utility model discloses when using, first clockwise rotation screw ring 6 makes and lock block 4 with spacing block 3 alignment, after the spigot 2 of square mouth 2's insertion slot 22 with spacing block 3 alignment, and the spigot 2 is inserted in mounting hole 11, make insertion slot 22 with spacing block 3 insertion together, under the cooperation of spacing block 3 and insertion slot 22 to the spigot 2 carries out the circumferential positioning, prevent the spigot 2 in the use process and rotate, to guarantee the welding quality, after anticlockwise rotation screw ring 6, make and lock block 4 rotate to the positioning groove 23, extrusion block 5 and the right end surface of positioning groove 23 abut, under the action of extrusion block 5 the spigot 2 is extruded tightly fixed to the bottom end of mounting hole 11, make first sealing surface 12 with second sealing surface 21 closely fit, thereby to the junction seal, prevent gas from the torch 2 and the clearance between base 1 leakage.

[0030] The above examples are only exemplary embodiments of the utility model, and are not used to limit the utility model, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the utility model's essence and protection scope, and the modification or equivalent replacement should also be considered to fall within the protection scope of the utility model.

Claims

1. A quick-connect structure for a heating torch, comprising a base (1), characterized in that: The base (1) has an installation hole (11) at its front end. The bottom end of the installation hole (11) has a first sealing surface (12). A rectangular nozzle (2) is inserted into the installation hole (11). The end of the rectangular nozzle (2) has a second sealing surface (21) that matches the first sealing surface (12). A insertion groove (22) is provided on the side wall of the rectangular nozzle (2). A limiting block (3) that matches the insertion groove (22) is fixedly installed at the bottom end of the installation hole (11). A positioning groove (23) is provided on the side of the insertion groove (22). A locking block (4) that matches the positioning groove (23) is movably installed on the side wall of the base (1).

2. The quick-connect structure for a heating torch according to claim 1, characterized in that, The base (1) has an arc-shaped through groove (13) on its outer wall. The arc-shaped through groove (13) is connected to the mounting hole (11). Two sets of limiting holes (14) are provided on the side wall of the arc-shaped through groove (13) away from the first sealing surface (12). The two sets of limiting holes (14) are respectively aligned with the middle of the insertion groove (22) and the positioning groove (23).

3. The quick-connect structure for a heating torch according to claim 2, characterized in that, The locking block (4) is fixedly connected to a lever (41) at one end away from the rectangular nozzle (2). The lever (41) is slidably installed in the arc-shaped through groove (13). An installation groove (42) is provided on the side wall of the lever (41). A limit button (43) is movably installed in the installation groove (42). A spring (44) is provided between the limit button (43) and the installation groove (42). The end of the limit button (43) away from the installation groove (42) is an arc-shaped surface.

4. The quick-connect structure for a heating torch according to claim 3, characterized in that, A rotating ring (6) is fixedly installed at the end of the lever (41) away from the locking block (4). An annular groove (15) is provided on the outer wall of the base (1). The rotating ring (6) is fitted into the annular groove (15). Several anti-slip protrusions (61) are provided on the outer wall of the rotating ring (6).

5. The quick-connect structure for a heating torch according to claim 1, characterized in that, The locking block (4) is fixedly installed with a squeezing block (5) at one end near the first sealing surface (12). The squeezing block (5) is a flexible soft block, and the end of the squeezing block (5) is provided with a rounded corner surface (51).

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