Welding table for elbow joint

Abstract

The welding table comprises a welding table body, a fixed screw seat is fixed to the middle of the welding table body, a first threaded rod is connected into the fixed screw seat in a threaded mode, a clamping sleeve is rotatably connected to the rear end of the first threaded rod, a first rotating handle is fixed to the front end of the first threaded rod, and a middle clamping seat is fixed to the rear portion of the clamping sleeve. A clamping sleeve and a middle clamping base are installed in the middle of a welding table, the middle of a bent pipe is fixed inside through the clamping sleeve and the middle clamping base, then the side portions of the two bent pipes are inserted into guide sleeves on the two sides, the side portions of the bent pipes in the two guide sleeves are extruded through two extrusion heads, and the side portions of the two bent pipes are moved to the two sides of the middle of the bent pipe; the bent pipe is formed by welding the middle of the bent pipe and the two sets of bent pipe side portions, the bent pipe formed by splicing and welding the three sections can effectively reduce the turning angle in a pipeline, airflow passing through the bent pipe can stably pass through the bent pipe, pressure borne by the bent pipe can be effectively reduced, and the service life of the bent pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of elbow joints, in particular to a welding platform for elbow joints. Background Art

[0002] Elbow pipe fittings are a type of pipe fittings used for connecting pipes at bends in pipes. They are mainly used to change the direction of pipes. Elbow pipe fittings enable pipes to be connected at different angles and directions and flow through curves. They are mainly used to construct curved pipes, especially in industrial fields such as chemical, petrochemical, pharmaceutical, food, etc., where fluid transport pipelines are widely used.

[0003] The elbow joints widely used on the market are mostly made of two right-angle pipes for splicing and welding. The process is simple and easy to operate. However, when the gas passes through the right-angle spliced ​​elbow, it will cause backflow and collision, resulting in a reduction in gas flow, and will exert greater pressure on the pipeline, reducing the service life of the pipeline. For this reason, we propose a welding table for elbow joints to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a welding platform for elbow joints to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a welding platform for an elbow joint, comprising a welding platform, wherein a fixing screw seat is fixed in the middle of the welding platform, a threaded rod 1 is connected to the inner thread of the fixing screw seat, a sleeve is rotatably connected to the rear end of the threaded rod 1, a turning handle 1 is fixed to the front end of the threaded rod 1, a middle clamping seat is fixed behind the sleeve, guide sleeves are fixed on both sides of the fixing screw seat, guide slide grooves are opened on both sides of the welding platform, guide sliders are slidably connected in the two groups of guide slide grooves, movable screw seats are arranged on the tops of the two groups of guide sliders, threaded rod 2 is connected to the inner thread of the movable screw seat, the rear ends of the two groups of threaded rods 2 are rotatably connected to the extrusion head, the front ends of the two groups of threaded rods 2 are fixed with turning handles 2, the middle part of the elbow is placed between the sleeve and the middle clamping seat, the side parts of the elbow are placed inside the two groups of guide sleeves, and movable positioning components are arranged on the two groups of guide sliders.

[0006] As a further preferred embodiment of the present technical solution, the movable positioning assembly includes a column, a movable sleeve, a bracket, a positioning rod, a handle, a return spring and a positioning hole. The tops of the two groups of guide slide blocks are provided with columns, the outsides of the two groups of columns are provided with movable sleeves, the lateral outer walls of the two groups of movable sleeves are connected with positioning rods through brackets, the tops of the two groups of brackets are fixed with handles, the outsides of the two groups of columns are wrapped with return springs, the side ends of the two groups of guide slide grooves are provided with two groups of positioning holes, and the bottom ends of the two groups of positioning rods can be inserted into the positioning holes.

[0007] As a further preferred embodiment of the present technical solution, the fixing screw seat and one opposite end of the turning handle both have a groove corresponding to the middle part of the curved pipe.

[0008] As a further preferred embodiment of the present technical solution, rubber sleeves are glued to the ends of the two groups of extrusion heads.

[0009] As a further preferred embodiment of the present technical solution, the top ends of the two groups of handles are both spherical in design.

[0010] As a further preferred embodiment of the present technical solution, two ends of the return spring are respectively connected to the top of the column and the top of the movable sleeve, and the movable sleeve is elastically connected to the top of the column through the return spring.

[0011] As a further preferred embodiment of the present technical solution, the inner wall of the movable sleeve is fully fitted with the outer wall of the column, and the movable sleeve is slidably connected to the column.

[0012] The utility model provides a welding platform for elbow joints, which has the following beneficial effects:

[0013] 1. The utility model installs a clamping sleeve and a middle clamping seat in the middle of the welding table, so that the clamping sleeve and the middle clamping seat fix the middle of the elbow inside, and then inserts two groups of elbow side parts into the guide sleeves on both sides, and then allows two groups of extrusion heads to extrude the elbow side parts in the two groups of guide sleeves, so that the two groups of elbow side parts are moved to both sides of the middle of the elbow, so as to facilitate welding the middle of the elbow and the two groups of elbow side parts, so that the middle of the elbow and the two groups of elbow side parts are welded to form an elbow, and the elbow formed by three-section welding can effectively reduce the turning angle inside the pipeline, so that the airflow passing through the inside can pass smoothly, which can effectively reduce the pressure on the elbow and increase the service life of the elbow.

[0014] 2. The utility model installs a liftable movable sleeve on the guide slider to push the movable screw seat, so that the guide slider drives the guide slide groove and the threaded rod two thereon to move horizontally. When the guide slider drives the positioning rod to move above the positioning hole at the corresponding position, the return spring can release the elastic force to push the movable sleeve to move downward, so that the bracket drives the positioning rod to insert into the positioning hole at the corresponding position, thereby quickly fixing the position of the guide slider and improving the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the local active state structure of the utility model;

[0018] Figure 4 For the utility model Figure 2 A is an enlarged structural diagram of FIG.

[0019] In the figure: 1. welding table; 2. fixed screw seat; 3. threaded rod 1; 4. clamping sleeve; 5. turning handle 1; 6. middle clamping seat; 7. guide sleeve; 8. guide slide groove; 9. guide slide block; 10. movable screw seat; 11. threaded rod 2; 12. extrusion head; 13. turning handle 2; 14. column; 15. movable sleeve; 16. bracket; 17. positioning rod; 18. pull handle; 19. reset spring; 20. positioning hole; 21. middle part of the bent pipe; 22. side of the bent pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, the welding platform of the elbow joint includes a welding platform 1, a fixed screw seat 2 is fixed in the middle of the welding platform 1, a threaded rod 3 is connected to the fixed screw seat 2 through an internal thread, a sleeve 4 is rotatably connected to the rear end of the threaded rod 3, a turning handle 5 is fixed to the front end of the threaded rod 3, a middle clamping seat 6 is fixed to the rear of the sleeve 4, guide sleeves 7 are fixed on both sides of the fixed screw seat 2, guide slide grooves 8 are provided on both sides of the welding platform 1, guide sliders 9 are slidably connected in two groups of guide slide grooves 8, and movable screw seats 10 are provided on the tops of the two groups of guide sliders 9. The movable screw seat 10 is threadedly connected to a threaded rod 11, and the rear ends of the two groups of threaded rods 11 are rotatably connected to an extrusion head 12, and the front ends of the two groups of threaded rods 11 are fixed to a turning handle 13, a middle portion of the elbow 21 is placed between the sleeve 4 and the middle clamping seat 6, and elbow side portions 22 are placed inside the two groups of guide sleeves 7, and movable positioning components are provided on the two groups of guide sliders 9.

[0022] By installing a clamping sleeve 4 and a middle clamping seat 6 in the middle of the welding table 1, the middle part 21 of the bent pipe can be placed between the clamping sleeve 4 and the middle clamping seat 6, and then the turning handle 1 5 is turned to allow the threaded rod 1 3 to push the clamping sleeve 4 toward the middle clamping seat 6 under the action of the thread, so that the clamping sleeve 4 and the middle clamping seat 6 fix the middle part 21 of the bent pipe inside, and then insert the two groups of bent pipe side parts 22 into the guide sleeves 7 on both sides, and then push the two groups of guide sliders 9 to allow the two groups of guide sliders 9 to drive the threaded rod 2 11 to move horizontally along the guide slide groove 8, and allow the threaded rod 2 11 to drive the extrusion head 12 to move to the ends of the two groups of guide sleeves 7, and then turn the two groups of turning handles 1 1 3. The two groups of threaded rods 11 are driven by the two groups of extrusion heads 12 to approach the ends of the two groups of guide sleeves 7 under the action of the threads, and then the two groups of extrusion heads 12 are used to extrude the elbow side portions 22 in the two groups of guide sleeves 7, so that the two groups of elbow side portions 22 are moved to both sides of the middle portion 21 of the elbow, so as to facilitate welding the middle portion 21 of the elbow with the two groups of elbow side portions 22, so that the middle portion 21 of the elbow and the two groups of elbow side portions 22 are welded to form an elbow, and the elbow formed by three-section welding can effectively reduce the turning angle inside the pipeline, so that the airflow passing through it can pass smoothly, which can effectively reduce the pressure on the elbow and increase the service life of the elbow.

[0023] In other embodiments, the movable positioning assembly includes a column 14, a movable sleeve 15, a bracket 16, a positioning rod 17, a handle 18, a reset spring 19 and a positioning hole 20. The tops of the two groups of guide slide blocks 9 are both provided with a column 14, the outsides of the two groups of columns 14 are both provided with a movable sleeve 15, the lateral outer walls of the two groups of movable sleeves 15 are both connected to the positioning rod 17 through the bracket 16, the tops of the two groups of brackets 16 are both fixed with a handle 18, the outsides of the two groups of columns 14 are both wound with a reset spring 19, the side ends of the two groups of guide slides 8 are both provided with two groups of positioning holes 20, and the bottom ends of the two groups of positioning rods 17 can be inserted into the positioning holes 20;

[0024] By installing a liftable movable sleeve 15 on the guide slider 9, when the position of the guide slider 9 needs to be adjusted, the handle 18 can be pulled upward to allow the bracket 16 to drive the movable sleeve 15 and the positioning rod 17 to move upward, and the movable sleeve 15 can squeeze the reset spring 19. When the positioning rod 17 completely leaves the positioning hole 20, the movable screw seat 10 can be pushed to allow the guide slider 9 to drive the guide slide groove 8 and the threaded rod 11 thereon to move horizontally. When the guide slider 9 drives the positioning rod 17 to move above the positioning hole 20 at the corresponding position, the upward pulling force on the handle 18 can be released, and the reset spring 19 releases the elastic force to push the movable sleeve 15 downward, and the bracket 16 drives the positioning rod 17 to be inserted into the positioning hole 20 at the corresponding position, so that the guide slider 9 can be quickly fixed in position, thereby improving the stability of the device during use.

[0025] In other embodiments, the jacket 4 and the middle clamp seat 6 have grooves at opposite ends corresponding to the middle portion 21 of the elbow;

[0026] Through this design, the jacket 4 and the middle clamp seat 6 can stably fix the middle part 21 of the elbow therein, thereby preventing the middle part 21 of the elbow from shaking during welding.

[0027] In other embodiments, the ends of the two sets of extrusion heads 12 are both glued with rubber sleeves;

[0028] This design can prevent the extrusion head 12 from abrading against the surface of the elbow side portion 22 , thereby ensuring the integrity of the surface of the elbow side portion 22 .

[0029] In other embodiments, the tops of the two sets of pull handles 18 are both spherical in design;

[0030] Through this design, the contact area between the handle 18 and the user's hand can be effectively increased, making it easier to hold the handle 18.

[0031] In other embodiments, the two ends of the return spring 19 are respectively connected to the top of the column 14 and the top of the movable sleeve 15, and the movable sleeve 15 is elastically connected to the top of the column 14 through the return spring 19;

[0032] With this design, the return spring 19 can continuously apply downward pressure to the movable sleeve 15 outside the column 14, so that the movable sleeve 15 can drive the positioning rod 17 at the bottom of the bracket 16 to quickly insert into the positioning hole 20 at the corresponding position.

[0033] In other embodiments, the inner wall of the movable sleeve 15 is fully fitted with the outer wall of the column 14, and the movable sleeve 15 is slidably connected to the column 14; through this design, when the movable sleeve 15 moves up and down along the column 14, it can effectively prevent the movable sleeve 15 from shaking significantly during the movement, thereby improving the stability of the device when in use.

[0034] 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 welding platform for an elbow joint, comprising a welding platform (1), characterized in that: A fixed screw seat (2) is fixed in the middle of the welding platform (1), a threaded rod (3) is connected to the internal thread of the fixed screw seat (2), a sleeve (4) is rotatably connected to the rear end of the threaded rod (3), a handle (5) is fixed to the front end of the threaded rod (3), a middle clamp seat (6) is fixed to the rear of the sleeve (4), guide sleeves (7) are fixed to both sides of the fixed screw seat (2), guide grooves (8) are provided on both sides of the welding platform (1), and guide slide blocks (9) are slidably connected to the two sets of guide grooves (8). The top of each guide slide block (9) is provided with a movable screw seat (10), the inner thread of each movable screw seat (10) is connected to a threaded rod (11), the rear ends of each of the two sets of threaded rods (11) are rotatably connected to an extrusion head (12), the front ends of each of the two sets of threaded rods (11) are fixed with a second turning handle (13), a middle portion of a bent pipe (21) is placed between the clamping sleeve (4) and the middle clamping seat (6), a side portion of a bent pipe (22) is placed inside each of the two sets of guide sleeves (7), and movable positioning components are provided on each of the two sets of guide slide blocks (9).

2. The welding platform for elbow joints according to claim 1, characterized in that: The movable positioning assembly comprises a column (14), a movable sleeve (15), a bracket (16), a positioning rod (17), a handle (18), a return spring (19) and a positioning hole (20). The tops of the two groups of guide slide blocks (9) are both provided with a column (14). The outsides of the two groups of columns (14) are both provided with a movable sleeve (15). The lateral outer walls of the two groups of movable sleeves (15) are both connected to the positioning rod (17) through the bracket (16). The tops of the two groups of brackets (16) are both fixed with a handle (18). The outsides of the two groups of columns (14) are both wound with a return spring (19). The side ends of the two groups of guide slide grooves (8) are both provided with two groups of positioning holes (20). The bottom ends of the two groups of positioning rods (17) can be inserted into the positioning holes (20).

3. The welding platform for elbow joints according to claim 1, characterized in that: The fixing screw seat (2) and the opposite end of the turning handle (5) both have a groove corresponding to the middle part (21) of the curved pipe.

4. The welding platform for elbow joints according to claim 1, characterized in that: The ends of the two groups of extrusion heads (12) are both glued with rubber sleeves.

5. The welding platform for elbow joints according to claim 2, characterized in that: The top ends of the two sets of handles (18) are both spherical in design.

6. The welding station for elbow joint according to claim 2, characterized in that: The two ends of the return spring (19) are respectively connected to the top of the column (14) and the top of the movable sleeve (15), and the movable sleeve (15) is elastically connected to the top of the column (14) via the return spring (19).

7. The welding station for elbow joint according to claim 2, characterized in that: The inner wall of the movable sleeve (15) is fully fitted with the outer wall of the column (14), and the movable sleeve (15) and the column (14) are slidably connected.

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