Steel structure welding preheating device

Abstract

The utility model discloses a steel structure welding preheating device which comprises a main body, a clamping assembly and an adjusting mechanism, the main body comprises a mounting batten, two sets of heat insulation covers and two sets of flame sprayers, the two sets of heat insulation covers are symmetrically and fixedly connected to the left side and the right side of the back face of the mounting batten, and the inner sides of the two sets of heat insulation covers are filled with heat insulation cotton. The two flame nozzles penetrate through the two heat insulation covers and then penetrate through the mounting batten, an opening is formed in the plate face of the mounting batten in the vertical direction, the opening is located between the two heat insulation covers, and the two clamping assemblies are arranged on the front face of the mounting batten and symmetrically arranged up and down. The steel pipe preheating device has the beneficial effects that by arranging the clamping assembly, the device can rotate or move along the steel pipe after clamping the steel pipe, compared with an existing device with a fixed preheating position, the preheating range can be freely adjusted according to actual requirements, and the device can be applied to preheating of steel pipes of different sizes through cooperation of the clamping assembly and the adjusting mechanism and is flexible to use.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure welding, in particular to a steel structure welding preheating device. Background Art

[0002] Steel structure welding preheating refers to heating the welding part during the welding process to increase the temperature of the material. Its purpose is to reduce the thermal stress and deformation during welding and prevent the occurrence of welding cracks.

[0003] Publication number CN211939594U discloses a steel structure welding preheating device, including a fixed cylinder, a matching plate, a mounting plate and a transmission structure. The fixed cylinder is a semi-cylindrical structure, and two groups of fixed cylinders are provided. One side of the two groups of fixed cylinders is hinged and matched. A preheating chamber is opened inside the fixed cylinder, and matching plates are fixed at both ends of the preheating chamber. The matching plate has a semi-circular ring structure. A guide block is provided at the middle section of the side of the mounting plate away from the burner, and a transmission structure is provided on one side of the guide block. A fixed plate is fixed on the side of the mounting plate away from the burner and close to the guide block. An arc-shaped cavity is opened on the fixed cylinder, and the fixed plate is slidably arranged in the cavity. The steel structure welding preheating device is reasonably designed and can quickly clamp and fix the steel structure steel pipe, and preheat it after clamping.

[0004] The above-mentioned preheating device has the following defects: the position of the device is fixed after installation, the preheating range is limited, and it may be difficult to meet the preheating range requirements in actual use.

[0005] In view of the above defects, a steel structure welding preheating device is proposed. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0007] In view of the problems of the above-mentioned steel structure welding preheating device, the present utility model is proposed.

[0008] Therefore, the purpose of the present invention is to provide a steel structure welding preheating device, which is used to solve the problems of "the existing device is fixed in position after installation, the preheating range is limited, and it may be difficult to meet the preheating range requirements in actual use".

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: a steel structure welding preheating device, comprising:

[0010] The main body includes a mounting strip, an insulation cover, and a flame nozzle. The insulation cover and the flame nozzle are provided in two groups. The two groups of insulation covers are symmetrically fixedly connected to the left and right sides of the back of the mounting strip. The insides of the two groups of insulation covers are filled with insulation cotton. The two groups of flame nozzles respectively penetrate the two groups of insulation covers and then penetrate the mounting strip. The mounting strip board surface is provided with an opening in the vertical direction, and the opening is located between the two groups of insulation covers.

[0011] A clamping assembly, wherein two groups of the clamping assemblies are provided on the front face of the mounting slats, and the two groups of the clamping assemblies are symmetrically arranged up and down, and include a fixed slat, a clamping block and a universal ball. The fixed slats are slidably arranged on the front face of the mounting slats, and the clamping blocks are provided in two groups, and the two groups of the clamping blocks are symmetrically fixedly connected to the left and right sides of the front face of the fixed slats. A V-shaped groove is provided on one side of the two groups of clamping blocks close to the other group of clamping assemblies, and multiple groups of universal balls are provided in the two groups of V-shaped grooves, and the multiple groups of universal balls are embedded and fixed inside the V-shaped grooves and are equidistantly arranged along the V-shaped grooves;

[0012] An adjusting mechanism is fixedly connected to the back of the mounting strip and is used to adjust the distance between the two groups of clamping components.

[0013] As an optimal solution of a steel structure welding preheating device described in the utility model, the adjusting mechanism includes connecting strips, a bidirectional screw, a threaded barrel and a connecting rod, and the connecting strips, threaded barrel and connecting rod are each provided with two groups, the two groups of connecting strips are fixedly connected to the mounting strips and are respectively arranged on the upper and lower sides of the opening, the bidirectional screw passes through the two groups of connecting strips and is rotatably connected to the two groups of connecting strips, the two groups of threaded barrels are respectively threadedly connected to the two sides of the bidirectional screw thread in opposite directions and are symmetrically positioned, the two groups of connecting rods are respectively fixedly connected to the two groups of threaded barrels, and the two groups of connecting rods are respectively fixedly connected to the two groups of threaded barrels, and the ends of the two groups of connecting rods away from the threaded barrels pass through the opening and are respectively fixedly connected to the two groups of fixed strips.

[0014] As a preferred solution of the steel structure welding preheating device described in the utility model, the adjustment mechanism further includes a button cap, which is fixedly connected to the top of the bidirectional screw and is star-shaped.

[0015] As a preferred solution of the steel structure welding preheating device described in the utility model, the main body also includes two groups of handles, and the two groups of handles are respectively fixedly connected to the back of the two groups of insulation covers and are symmetrically arranged.

[0016] As a preferred solution of the steel structure welding preheating device described in the utility model, the clamping assembly further includes a cover plate, which is fixedly connected to the side of the two groups of flame nozzles facing away from the other group of clamping assemblies.

[0017] As a preferred solution of the steel structure welding preheating device described in the utility model, the clamping assembly also includes two groups of vertically arranged sliders, the two groups of sliders are respectively fixedly connected to the two sides of the back of the fixed strip, and the positions of the mounting strips facing the two groups of sliders are provided with sliding grooves in the vertical direction, and the two groups of sliders are respectively slidably connected to the inner sides of the two groups of sliding grooves.

[0018] The beneficial effects of the present invention are as follows: by setting a clamping assembly, the device can rotate or move along the steel pipe after clamping the steel pipe. Compared with the existing device with a fixed preheating position, the preheating range can be freely adjusted according to actual needs. The clamping assembly cooperates with the adjustment mechanism so that the device can be used for preheating steel pipes of different sizes. It is flexible to use and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0020] Figure 1 This is a schematic diagram of the rear three-dimensional structure of a steel structure welding preheating device of the present invention.

[0021] Figure 2 For this utility model Figure 1 A magnified view of the structure of area A in the middle.

[0022] Figure 3 The utility model is a cross-sectional structural diagram of a steel structure welding preheating device.

[0023] Figure 4 The utility model is a structural schematic diagram of a steel structure welding preheating device in use state.

[0024] Description of the drawings: 100, main body; 101, mounting strip; 101a, opening; 102, insulation cover; 103, flame nozzle; 104, handle; 200, clamping assembly; 201, fixing strip; 202, clamping block; 203, universal ball; 204, cover; 205, slider; 300, adjustment mechanism; 301, connecting strip; 302, bidirectional screw; 303, threaded barrel; 304, connecting rod; 305, button cap. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0029] Reference Figures 1-4 , is an embodiment of the present invention, which provides a steel structure welding preheating device, comprising:

[0030] The main body 100 includes a mounting strip 101, an insulating cover 102, and a flame nozzle 103. Two sets of insulating covers 102 and flame nozzles 103 are provided. The two sets of insulating covers 102 are symmetrically fixedly connected to the left and right sides of the back of the mounting strip 101. The insides of the two sets of insulating covers 102 are filled with insulating cotton. The two sets of flame nozzles 103 pass through the two sets of insulating covers 102 and then through the mounting strip 101. The mounting strip 101 has an opening 101a in the vertical direction, and the opening 101a is located between the two sets of insulating covers 102.

[0031] The clamping assembly 200 is provided with two groups on the front of the mounting strip 101. The two groups of clamping assemblies 200 are symmetrically arranged up and down, and include a fixed strip 201, a clamping block 202 and a universal ball 203. The fixed strip 201 is slidably provided on the front of the mounting strip 101. The clamping block 202 is provided in two groups. The two groups of clamping blocks 202 are symmetrically fixedly connected to the left and right sides of the front of the fixed strip 201. A V-shaped groove is provided on one side of the two groups of clamping blocks 202 close to the other group of clamping assemblies 200. Multiple groups of universal balls 203 are provided in both groups of V-shaped grooves. The multiple groups of universal balls 203 are all embedded and fixed on the inner side of the V-shaped groove and are equidistantly arranged along the V-shaped groove.

[0032] The adjusting mechanism 300 is fixedly connected to the back side of the mounting strip 101, and is used to adjust the spacing between the two groups of clamping assemblies 200. The adjusting mechanism 300 includes a connecting strip 301, a bidirectional screw 302, a threaded barrel 303 and a connecting rod 304. The connecting strip 301, the threaded barrel 303 and the connecting rod 304 are each provided with two groups. The two groups of connecting strips 301 are fixedly connected to the mounting strip 101 and are respectively arranged on the upper and lower sides of the opening 101a. The bidirectional screw 302 passes through the two groups of connecting strips 301 and is rotatably connected to the two groups of connecting strips 301. The two groups of threaded barrels 303 are respectively threadedly connected to the two sides of the bidirectional screw 302 with opposite threads and are symmetrically arranged. The two groups of connecting rods 304 are respectively fixedly connected to the two groups of threaded barrels 303. The ends of the two groups of connecting rods 304 away from the threaded barrel 303 pass through the opening 101a and are respectively fixedly connected to the two groups of fixed strips 201.

[0033] The adjusting mechanism 300 further includes a button cap 305 , which is fixedly connected to the top of the bidirectional screw 302 and is star-shaped. The button cap 305 is used to facilitate the rotation of the bidirectional screw 302 , and the star shape is used to prevent slipping during rotation.

[0034] In addition, the main body 100 also includes two sets of handles 104, which are respectively fixedly connected to the back of the two sets of insulation covers 102 and are symmetrically arranged. The handles 104 are used to facilitate the movement of the device. The clamping assembly 200 also includes a cover plate 204, which is fixedly connected to the side of the two sets of flame nozzles 103 facing away from the other set of clamping assemblies. The cover plate 204 is used to protect the device.

[0035] It should be noted that the clamping assembly 200 also includes two groups of vertically arranged sliders 205, which are respectively fixedly connected to the two sides of the back of the fixed slat 201. The positions of the mounting slat 101 facing the two groups of sliders 205 are provided with sliding grooves in the vertical direction, and the two groups of sliders 205 are respectively slidably connected to the inner sides of the two groups of sliding grooves.

[0036] Working principle: Turn the button cap 305, and when the button cap 305 rotates, it drives the two sets of threaded cylinders 303 to move closer or farther from each other according to the direction of rotation. When the two sets of threaded cylinders 303 move, they respectively drive the two sets of clamping components 200 to move synchronously. When in use, Figure 4 As shown, the steel pipe is placed between the two sets of clamping assemblies 200, and the button cap 305 is rotated to make the two sets of clamping assemblies 200 clamp the upper and lower sides of the steel pipe respectively. Due to the presence of the universal ball 203, the clamped device can rotate or move along the steel pipe. The two sets of flame nozzles 103 preheat the steel pipe. The two sets of handles 104 are held by both hands respectively, and the device can be moved or rotated according to actual needs to increase the preheating area.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A steel structure welding preheating device, characterized in that: include: The main body (100) comprises a mounting strip (101), a heat-insulating cover (102) and a flame spray head (103), wherein the heat-insulating cover (102) and the flame spray head (103) are both provided in two groups, the two groups of the heat-insulating cover (102) are symmetrically fixedly connected to the left and right sides of the back of the mounting strip (101), the inner sides of the two groups of the heat-insulating cover (102) are filled with heat-insulating cotton, the two groups of the flame spray heads (103) respectively penetrate the two groups of the heat-insulating cover (102) and then penetrate the mounting strip (101), the plate surface of the mounting strip (101) is provided with an opening (101a) in the vertical direction, and the opening (101a) is located between the two groups of the heat-insulating cover (102); A clamping assembly (200), wherein two groups of the clamping assembly (200) are provided on the front of the mounting strip (101), and the two groups of the clamping assembly (200) are symmetrically arranged up and down, and include a fixed strip (201), a clamping block (202) and a universal ball (203), wherein the fixed strip (201) is slidably arranged on the front of the mounting strip (101), and the clamping block (202) is provided in two groups, and the two groups of the clamping blocks (202) are symmetrically fixedly connected to the left and right sides of the front of the fixed strip (201), and a V-shaped groove is provided on one side of the two groups of the clamping blocks (202) close to the other group of the clamping assembly (200), and a plurality of groups of the universal ball (203) are provided in the two groups of V-shaped grooves, and the plurality of groups of the universal ball (203) are embedded and fixed on the inner side of the V-shaped groove and are arranged equidistantly along the V-shaped groove; An adjusting mechanism (300) is fixedly connected to the back of the mounting strip (101) and is used to adjust the distance between the two groups of clamping assemblies (200).

2. A steel structure welding preheating device according to claim 1, characterized in that: The adjusting mechanism (300) comprises a connecting strip (301), a bidirectional screw (302), a threaded barrel (303) and a connecting rod (304). The connecting strip (301), the threaded barrel (303) and the connecting rod (304) are each provided with two groups. The two groups of connecting strips (301) are fixedly connected to the mounting strip (101) and are respectively arranged on the upper and lower sides of the opening (101a). The bidirectional screw (302) passes through the two groups of connecting strips (301) and is rotatably connected to the two groups of connecting strips (301). The two groups of threaded barrels (303) are respectively threadedly connected to the two sides of the bidirectional screw (302) with opposite thread rotation directions and are symmetrically arranged. The two groups of connecting rods (304) are respectively fixedly connected to the two groups of threaded barrels (303). The ends of the two groups of connecting rods (304) away from the threaded barrel (303) pass through the opening (101a) and are respectively fixedly connected to the two groups of fixed strips (201).

3. A steel structure welding preheating device according to claim 2, characterized in that: The adjustment mechanism (300) further comprises a button cap (305), wherein the button cap (305) is fixedly connected to the top end of the bidirectional screw (302), and the button cap (305) is star-shaped.

4. A steel structure welding preheating device according to claim 1, characterized in that: The main body (100) further comprises two groups of handles (104), wherein the two groups of handles (104) are respectively fixedly connected to the back sides of the two groups of heat-insulating covers (102) and are symmetrically arranged.

5. A steel structure welding preheating device according to claim 1, characterized in that: The clamping assembly (200) further comprises a cover plate (204), wherein the cover plate (204) is fixedly connected to a side of the two groups of flame spray heads (103) facing away from the other group of clamping assemblies.

6. A steel structure welding preheating device according to claim 1, characterized in that: The clamping assembly (200) further comprises two groups of vertically arranged sliders (205), the two groups of sliders (205) being fixedly connected to the two sides of the back of the fixed strip (201), and the positions of the mounting strip (101) facing the two groups of sliders (205) being provided with sliding grooves in the vertical direction, and the two groups of sliders (205) being slidably connected to the inner sides of the two groups of sliding grooves.

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