Welding device for impermeable membrane of landfill

Abstract

The utility model discloses a landfill impermeable membrane welding device which comprises a welding gun body, a handrail is installed on the welding gun body, a welding nozzle is installed at the head of the welding gun body, four rolling bodies are installed at the four corners of the end of the welding nozzle, the rolling bodies are partially exposed out of the welding nozzle, and the rolling direction of the rolling bodies is consistent with the welding direction of the welding gun. When the welding device is extruded to move forwards, rolling friction exists between the rolling body and a film, resistance is reduced, the film is not prone to being damaged, and the welding nozzle is not prone to being abraded quickly; during welding, the rolling body on the welding nozzle can abut against the geomembrane, during forward welding, the rolling body can provide guiding and positioning for forward welding, and accurate welding is easier.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-seepage membrane construction, and in particular relates to a landfill anti-seepage membrane welding device. Background Art

[0002] Anti-seepage geomembrane has good tensile and anti-seepage properties and is widely used in landfill projects. Welding is required after laying the anti-seepage membrane. When welding the anti-seepage membrane, a climbing welding machine or an extrusion welding gun is generally used. The climbing welding machine is generally used for large-scale welding, while for small welding areas, large welding slopes, gap repairs, etc., a more flexible extrusion welding gun is generally used.

[0003] When the extrusion welding gun is used to weld the anti-seepage geomembrane, the molten solder is sprayed out on one side of the welding nozzle and adhered to the overlap of the geomembrane. Then the extrusion welding gun is held and the welding nozzle is pressed against the membrane to weld forward. This anti-seepage membrane welding device has a large friction between the welding nozzle and the membrane, which may damage the membrane in serious cases and easily cause the welding nozzle to wear quickly. At the same time, the forward resistance of the hand is large; the welding lacks guidance and positioning, which easily causes uneven welding. Utility Model Content

[0004] The utility model provides a landfill anti-seepage membrane welding device. When extruding forward, there is rolling friction between the rolling body and the membrane, which reduces resistance, is not easy to damage the membrane, and is not easy to cause rapid wear of the welding nozzle. During welding, the rolling body on the welding nozzle will press on the geomembrane. When welding forward, the rolling body can provide guiding positioning for the forward welding, which makes it easier to weld accurately, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a landfill anti-seepage membrane welding device, comprising a welding gun body, a handrail is installed on the welding gun body, and a welding nozzle is installed on the head, four rolling bodies are installed at the four corners of the end of the welding nozzle, the rolling body is partially exposed from the welding nozzle, and the rolling direction of the rolling body is consistent with the welding direction of the welding gun.

[0006] Preferably, the welding nozzle is a split structure.

[0007] Preferably, the welding nozzle comprises a main body and a fixing plate, the fixing plate is provided with a through opening for exposing the rolling body part, the main body is provided with a groove corresponding to the rolling body, and the main body and the fixing plate are fixed by a locking mechanism.

[0008] Preferably, the locking mechanism includes an insertion portion located at the rear side of the fixing plate, the main body portion is provided with an insertion groove corresponding to the insertion portion, the insertion portion is provided with a first card slot, the welding nozzle is provided with a second card slot corresponding to the first card slot, a card block and a spring are provided in the first card slot, and the card block is partially stuck in the second card slot under the action of the spring.

[0009] Preferably, a small hole penetrating through the second slot is provided on one side of the welding nozzle.

[0010] Preferably, the rolling element is made of high-hardness wear-resistant alloy material.

[0011] Preferably, the outer edge of the welding nozzle is a chamfered structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When extruding forward, there is rolling friction between the rolling body and the membrane, which reduces the resistance, is not easy to damage the membrane, and is not easy to cause the welding nozzle to wear quickly.

[0014] 2. During welding, the rolling body on the welding nozzle will press on the geomembrane. During forward welding, the rolling body can provide guidance and positioning for the forward welding, making it easier to weld accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rolling element structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the fixing plate and the through-port structure of the utility model;

[0018] Figure 4 It is a cross-sectional structural diagram of the fixed rolling element, the main body part and the fixed plate of the utility model;

[0019] Figure 5 It is a schematic cross-sectional structure diagram of the main body, fixing plate and locking mechanism of the utility model.

[0020] In the figure: 1. welding gun body; 2. handrail; 3. welding nozzle; 4. rolling element; 5. main part; 6. fixing plate; 7. through opening; 8. groove; 9. insertion part; 10. insertion groove; 11. first clamping slot; 12. second clamping slot; 13. clamping block; 14. spring; 15. small hole. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5The utility model provides a landfill anti-seepage membrane welding device, including a welding gun body 1, a handrail 2 is installed on the welding gun body 1, and a welding nozzle 3 is installed on the head, four rolling bodies 4 are installed at the four corners of the end of the welding nozzle 3, the rolling bodies 4 partially expose the welding nozzle 3, and the rolling direction of the rolling bodies 4 is consistent with the welding direction of the welding gun; when the welding gun body 1 is used to weld the anti-seepage geomembrane, the molten solder is sprayed out at one side of the welding nozzle 3, and the upper spraying is taken as an example, and it is pasted on the overlap of the geomembrane, and then the welding gun body 1 and the handrail 2 are held to press the welding nozzle 3 against the membrane for forward welding. During welding, the rolling bodies 4 on the welding nozzle 3 will press on the geomembrane. During forward welding, the rolling bodies 4 can provide guiding positioning for the forward welding, which is easier to weld accurately; at the same time, when squeezing forward, there is rolling friction between the rolling bodies 4 and the membrane, which reduces resistance, is not easy to damage the membrane, and is not easy to cause the welding nozzle to wear quickly.

[0023] Specifically, the welding nozzle 3 is a split structure; in this embodiment, the split design facilitates the installation and removal of the rolling body 4 on the welding nozzle 3.

[0024] Specifically, the welding nozzle 3 includes a main body 5 and a fixing plate 6, the fixing plate 6 is provided with a through opening 7 for partially exposing the rolling body 4, the main body 5 is provided with a groove 8 corresponding to the rolling body 4, and the main body 5 and the fixing plate 6 are fixed by a locking mechanism; in this embodiment, the rolling body 4 can roll in the through opening 7 and the groove 8, and after removing the fixing plate 6, the rolling body 4 can be taken out of the groove 8.

[0025] Specifically, the locking mechanism includes an insertion portion 9 located at the rear side of the fixed plate 6, the main body 5 is provided with an insertion groove 10 corresponding to the insertion portion 9, the insertion portion 9 is provided with a first card slot 11, and the welding nozzle 3 is provided with a second card slot 12 corresponding to the first card slot 11, and the first card slot 11 is provided with a card block 13 and a spring 14, and the card block 13 is partially stuck in the second card slot 12 under the action of the spring 14; in this embodiment, the card block 13 is stuck between the first card slot 11 and the second card slot 12, and the spring 14 provides extrusion limiting, so that the insertion portion 9 and the insertion groove 10 are stably positioned, and the main body 5 and the fixed plate 6 are locked, so that stable operation can be achieved while being detachable.

[0026] Specifically, a small hole 15 penetrating the second slot 12 is provided on one side of the welding nozzle 3; in this embodiment, the small hole 15 can be used for an external component to completely press the block 13 back into the first slot 11, thereby realizing the removal of the fixing plate 6 from the main body 5.

[0027] Specifically, the rolling element 4 is made of a high-hardness, wear-resistant alloy material; in this embodiment, the rolling element 4 is durable, not easily deformed, and has high stability.

[0028] Specifically, the outer edge of the welding nozzle 3 is a chamfered structure; in this embodiment, the welding nozzle 3 reduces the wear and scratching of the anti-seepage membrane during operation.

[0029] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0030] Working principle: When the welding gun body 1 is welding the anti-seepage geomembrane, the molten solder is sprayed out on one side of the welding nozzle 3. Taking the upper spraying as an example, it is pasted on the overlap of the geomembrane, and then the welding gun body 1 and the handrail 2 are held to press the welding nozzle 3 against the membrane for forward welding. During welding, the rolling body 4 on the welding nozzle 3 will press on the geomembrane. During forward welding, the rolling body 4 can provide guide positioning for the forward welding, which makes it easier to weld accurately. At the same time, when squeezing forward, there is rolling friction between the rolling body 4 and the membrane, which reduces resistance, is not easy to damage the membrane, and is not easy to cause rapid wear of the welding nozzle.

[0031] 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 landfill impermeable membrane welding device, comprising a welding gun body (1), characterized in that: The welding gun body (1) is provided with an armrest (2), and the head is provided with a welding nozzle (3). Four rolling bodies (4) are provided at the four corners of the end of the welding nozzle (3). Parts of the rolling bodies (4) are exposed from the welding nozzle (3), and the rolling direction of the rolling bodies (4) is consistent with the welding direction of the welding gun.

2. A landfill impermeable membrane welding device according to claim 1, characterized in that: The welding nozzle (3) is of a split structure.

3. A landfill impermeable membrane welding device according to claim 2, characterized in that: The welding nozzle (3) comprises a main body (5) and a fixing plate (6); the fixing plate (6) is provided with a through opening (7) for partially exposing the rolling body (4); the main body (5) is provided with a groove (8) corresponding to the rolling body (4); the main body (5) and the fixing plate (6) are fixed by a locking mechanism.

4. A landfill impermeable membrane welding device according to claim 3, characterized in that: The locking mechanism comprises an insertion portion (9) located at the rear side of the fixing plate (6); the main body (5) is provided with an insertion groove (10) corresponding to the insertion portion (9); the insertion portion (9) is provided with a first clamping groove (11); the welding nozzle (3) is provided with a second clamping groove (12) corresponding to the first clamping groove (11); a clamping block (13) and a spring (14) are provided in the first clamping groove (11); the clamping block (13) is partially clamped in the second clamping groove (12) under the action of the spring (14).

5. A landfill impermeable membrane welding device according to claim 4, characterized in that: A small hole (15) penetrating the second clamping groove (12) is provided on one side of the welding nozzle (3).

6. A landfill impermeable membrane welding device according to claim 1, characterized in that: The rolling element (4) is made of a high-hardness wear-resistant alloy material.

7. A landfill impermeable membrane welding device according to claim 1, characterized in that: The outer edge of the welding nozzle (3) is a chamfered structure.

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