Positioning device for fire hydrant flange welding

Abstract

The application relates to the technical field of fire-fighting equipment, and provides a positioning device for fire hydrant flange welding, which comprises a V-shaped frame, the bottom of the V-shaped frame is provided with a second fixing frame, clamping mechanisms are arranged on the two sides of the V-shaped frame, a supporting mechanism is arranged at the bottom of the left side of the V-shaped frame, an adjusting mechanism penetrates through the middle of the second fixing frame, micro pneumatic telescopic rods are arranged on the front and back sides of the inside of the side pressing arm, clamping pressing plates are fixedly connected to the output ends of the micro pneumatic telescopic rods, and the other end of the supporting column is fixedly connected with the bottom of the arc supporting seat. The second pneumatic telescopic rod drives the clamping column to be clamped into the inside of the clamping groove, the supporting column and the arc supporting seat are fixed, the micro pneumatic telescopic rod drives the clamping pressing plates to approach the flange body, the positions of the two sides of the flange body are clamped and fixed in front and back directions, and the side pressing arm can adapt to clamping flanges with different diameters.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fire-fighting equipment, in particular to a positioning device for fire hydrant flange welding. BACKGROUND

[0002] The fire hydrant is a fixed fire-fighting facility, mainly used for controlling combustible materials, isolating combustion-supporting materials and eliminating ignition sources. According to different use functions and installation positions, the fire hydrant is divided into outdoor fire hydrants and indoor fire hydrants. Both the outdoor fire hydrant and the indoor fire hydrant need to introduce water from the main fire hydrant through the fire hydrant pipe. The fire hydrant is generally connected with the water pipe through a flange. Therefore, when the fire hydrant is produced, the flange needs to be welded at the end of the fire hydrant. When the flange is welded, the welding operator needs to hold the flange and the fire hydrant pipe for positioning welding, which is inconvenient to operate and low in efficiency. Therefore, the application provides a positioning device for fire hydrant flange welding to solve the problems in the background art. SUMMARY

[0003] In view of the deficiencies in the prior art, the application provides a positioning device for fire hydrant flange welding, which solves the problems that the welding operator needs to hold the flange and the fire hydrant pipe for positioning welding when the flange is welded, which is inconvenient to operate and low in efficiency.

[0004] To achieve the above object, the application is implemented by the following technical scheme: a positioning device for fire hydrant flange welding, comprising a V-shaped frame, a second fixing frame is installed at the bottom of the V-shaped frame, clamping mechanisms are arranged on the two sides of the V-shaped frame, a supporting mechanism is installed at the bottom of the left side of the V-shaped frame, and an adjusting mechanism penetrates the middle of the second fixing frame.

[0005] The clamping mechanism comprises first pneumatic telescopic rods, the first pneumatic telescopic rods penetrate the two sides of the V-shaped frame, the output ends of the first pneumatic telescopic rods are fixedly connected with one side of the side pressing arm away from the other side, micro pneumatic telescopic rods are arranged inside the side pressing arm, and the output ends of the micro pneumatic telescopic rods are fixedly connected with clamping pressing plates.

[0006] The supporting mechanism comprises a first support frame, the first support frame is installed at the bottom of the left side of the V-shaped frame, the inside of the first support frame is rotationally connected with one end of a support column, the other end of the support column is fixedly connected with the bottom of an arc support seat, a second support frame is installed on the right side of the support column, the inside of the second support frame is rotationally connected with a connecting block, the connecting block is welded with the bottom of a second pneumatic telescopic rod, the output end of the second pneumatic telescopic rod is fixedly connected with a clamping column, the clamping column is clamped in a clamping groove, and the clamping groove is arranged at the bottom of the right side of the V-shaped frame.

[0007] Preferably, the adjusting mechanism comprises a movable column, the movable column is arranged through the middle part of the second fixing frame, the outer wall of the movable column is sleeved with a fixed column, a plurality of first fixing grooves are arranged equidistantly on the movable column, the front side of the fixed column is provided with a second fixing groove, the first fixing groove and the second fixing groove are in threaded connection with a fixed insertion rod, the outer wall of the fixed column is sleeved with a first fixing frame, and the top of the first fixing frame is fixedly connected with a supporting plate.

[0008] Preferably, the adjusting mechanism further comprises a fixing sleeve, the bottom of the fixing sleeve is mounted on the top of the supporting plate, first threaded through grooves are arranged on the two sides of the fixing sleeve, threaded fixing grooves are arranged on the two sides of the outer wall of the fixing sleeve, the first threaded through grooves are in threaded connection with threaded fastening rods, the adjacent sides of the threaded fastening rods are fixedly connected with the sides, away from each other, of arc-shaped pressing plates, the threaded fastening rods are in threaded connection with fastening sleeves, and the fastening sleeves are in threaded connection with the threaded fixing grooves.

[0009] Preferably, the inner sides of the clamping pressing plates are in contact with the two sides of the outer side of the flange body, the rear side of the flange body is in threaded connection with the front side of the fire hydrant pipe, and the outer wall of the fire hydrant pipe is in contact with the two arc-shaped pressing plates.

[0010] Preferably, the inner diameter of the side pressing arm is greater than the outer diameter of the flange body, the inner diameter of the fixing sleeve is greater than the outer diameter of the fire hydrant pipe, and the two sides of the flange body are clamped in the two sides of the inner side of the side pressing arm.

[0011] Preferably, the movable column is in sliding connection in the inner side of the fixed column, and the rear side of the outer wall of the fixed column is provided with a push rod.

[0012] Preferably, the height of the second fixing frame is equal to that of the first fixing frame.

[0013] Preferably, the bottom outer side of the first pneumatic telescopic rod is provided with a protection connecting frame, and the protection connecting frame is mounted on the side, away from each other, of the V-shaped frame.

[0014] Preferably, the top of the arc-shaped supporting seat is wrapped around the bottom of the flange body.

[0015] Working principle: through the flange body is placed in the middle of the side pressure arm, then the prop column is lifted up, the arc support seat on the prop column is contacted to the bottom of the flange body and is wrapped to fix it, then the connecting block is pulled down, the second pneumatic telescopic rod on the connecting block drives the clamping column to extend into the clamping groove, the clamping column is clamped into the inside of the clamping groove, so that the prop column and the arc support seat can be fixed, so that the bottom of the flange body wrapped by the arc support seat top is supported, then the micro pneumatic telescopic rod arranged on the inside of the side pressure arm is started, so that the micro pneumatic telescopic rod drives the clamping pressing plate to approach the flange body, the position of the flange body on both sides is fixed in front and back, and the side pressure arm can adapt to clamp flanges of different sizes, when the fire hydrant flange is welded, the positioning device is directly positioned and fixed, convenient and stable operation, high efficiency.

[0016] By passing the fire hydrant pipe through the middle of the fixed sleeve and fixing it at a position not far from the flange body, then by screwing the threaded fastening rods on both sides in the first threaded through slot on both sides of the fixed sleeve, the arc-shaped pressing plates on both sides of the first threaded through slot are screwed and contacted to the outer wall of the fire hydrant pipe until clamping, then the fastening sleeve is rotated on the threaded fastening rod, and then the fastening sleeve is screwed into the threaded fixing groove on both sides of the fixed sleeve, so that the threaded fastening rods on both sides are tightly fixed on the fixed sleeve, and the arc-shaped pressing plates on both sides fix the fire hydrant pipe, and the fixed sleeve can adapt to fix fire hydrant pipes of different diameters and fix the fire hydrant pipe.

[0017] The present application provides a positioning device for fire hydrant flange welding.

[0018] 1、The arc support seat on the prop column is contacted to the bottom of the flange body and is wrapped to fix it, and the second pneumatic telescopic rod drives the clamping column to be clamped into the inside of the clamping groove, so that the prop column and the arc support seat are fixed, and then the micro pneumatic telescopic rod drives the clamping pressing plate to approach the flange body, the position of the flange body on both sides is fixed in front and back, and the side pressure arm can adapt to clamp flanges of different sizes, when the fire hydrant flange is welded, the positioning device is directly positioned and fixed, convenient and stable operation, thereby realizing automatic positioning and fixing of the fire hydrant flange welding positioning device, without manual positioning and fixing, high efficiency.

[0019] 2、The arc-shaped pressing plates fix the fire hydrant pipe, the fixed sleeve can adapt to fix fire hydrant pipes of different diameters, and the fire hydrant pipe is fixed and positioned, thereby realizing positioning and fixing of the fire hydrant pipe, and adapting to positioning and fixing of fire hydrant pipes of different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural exploded perspective view of the present application;

[0021] Figure 2 is a structural perspective view of the present application;

[0022] Figure 3 is a right side perspective view of the present application;

[0023] Figure 4 is a sectional perspective view of the present application;

[0024] Figure 5 is a front perspective view of the present application;

[0025] Figure 6 is a top perspective view of the present application;

[0026] Figure 7 is a rear perspective view of the present application.

[0027] Wherein, 1, clamping mechanism; 101, side pressure arm; 102, miniature pneumatic telescopic rod; 103, clamping pressure plate; 104, first pneumatic telescopic rod; 2, supporting mechanism; 201, first support frame; 202, support column; 203, arc support seat; 204, second support frame; 205, second pneumatic telescopic rod; 206, clamping column; 207, clamping groove; 208, connecting block; 3, adjusting mechanism; 301, movable column; 302, fixed column; 303, first fixed groove; 304, second fixed groove; 305, fixed insertion rod; 306, fixed sleeve; 307, arc-shaped pressure plate; 308, threaded fastening rod; 309, fastening sleeve; 310, first threaded through groove; 311, threaded fixed groove; 4, V-shaped frame; 5, first fixed frame; 6, support plate; 7, fire hydrant pipe; 8, flange body; 9, protection connecting frame; 10, second fixed frame; 11, push rod. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the specification of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0029] Embodiment:

[0030] Please refer to the drawings in the specification of the present application Figure 1 - the drawings in the specification of the present application Figure 7The embodiment of the application provides a positioning device for fire hydrant flange welding, which comprises a V-shaped frame 4, a second fixing frame 10 is installed at the bottom of the V-shaped frame 4, clamping mechanisms 1 are arranged at the two sides of the V-shaped frame 4, a supporting mechanism 2 is installed at the left bottom of the V-shaped frame 4, and an adjusting mechanism 3 penetrates through the middle of the second fixing frame 10.

[0031] The clamping mechanism 1 comprises first pneumatic telescopic rods 104, the first pneumatic telescopic rods 104 penetrate through the two sides of the V-shaped frame 4, the output ends of the first pneumatic telescopic rods 104 are fixedly connected to one side, away from the side pressing arms 101, micro pneumatic telescopic rods 102 are arranged inside the side pressing arms 101, and the output ends of the micro pneumatic telescopic rods 102 are fixedly connected with clamping pressing plates 103.

[0032] The supporting mechanism 2 comprises a first support frame 201, the first support frame 201 is installed at the left bottom of the V-shaped frame 4, one end of a support column 202 is rotationally connected to the inside of the first support frame 201, the other end of the support column 202 is fixedly connected to the bottom of an arc support base 203, a second support frame 204 is installed on the right side of the support column 202, the inside of the second support frame 204 is rotationally connected with a connecting block 208, the connecting block 208 is welded to the bottom of a second pneumatic telescopic rod 205, a clamping column 206 is fixedly connected to the output end of the second pneumatic telescopic rod 205, the clamping column 206 is clamped in a clamping groove 207, and the clamping groove 207 is arranged at the right bottom of the V-shaped frame 4.

[0033] The flange body 8 is placed in the middle of the side pressing arms 101, then the arc support base 203 on the support column 202 is held up to wrap and fix the bottom of the flange body 8, then the connecting block 208 is pulled down, the second pneumatic telescopic rod 205 on the connecting block 208 drives the clamping column 206 to extend into the clamping groove 207, the clamping column 206 is clamped in the inside of the clamping groove 207, so that the support column 202 and the arc support base 203 are fixed, the bottom of the flange body 8 wrapped by the top of the arc support base 203 is supported, then the micro pneumatic telescopic rods 102 arranged inside the front and back sides of the side pressing arms 101 are started, so that the micro pneumatic telescopic rods 102 drive the clamping pressing plates 103 to approach the flange body 8, and the positions of the two sides of the flange body 8 are clamped and fixed, Figure 5 In this way, the flange is supported at the bottom and clamped on the two sides, and the subsequent welding work is facilitated.

[0034] The adjusting mechanism 3 comprises a movable column 301 which is arranged through the middle of the second fixing frame 10, the outer wall of the movable column 301 is sleeved with a fixing column 302, a plurality of first fixing grooves 303 are equidistantly arranged on the movable column 301, the front side of the fixing column 302 is provided with a second fixing groove 304, the first fixing groove 303 and the second fixing groove 304 are both threadedly connected with a fixing plug rod 305, the outer wall of the fixing column 302 is sleeved with the first fixing frame 5, and the top of the first fixing frame 5 is fixedly connected with a supporting plate 6.

[0035] The adjusting mechanism 3 further comprises a fixing sleeve 306, the bottom of the fixing sleeve 306 is mounted on the top of the supporting plate 6, the two sides of the fixing sleeve 306 are both arranged with a first threaded through groove 310, the outer wall of the fixing sleeve 306 is provided with a threaded fixing groove 311 on both sides, the first threaded through groove 310 is threadedly connected with a threaded fastening rod 308, the adjacent side of the threaded fastening rod 308 is fixedly connected with one side of an arc-shaped pressing plate 307, the threaded fastening rod 308 is threadedly connected with a fastening sleeve 309, and the fastening sleeve 309 is threadedly connected with the threaded fixing groove 311.

[0036] By arranging the fire hydrant pipe 7 to pass through the middle of the fixing sleeve 306 and to be fixed at a position close to the flange body 8, then threadedly rotating the threaded fastening rods 308 on the first threaded through grooves 310 on both sides of the fixing sleeve 306, the arc-shaped pressing plates 307 on the first threaded through grooves 310 on both sides are threadedly rotated to contact the outer wall of the fire hydrant pipe 7 until clamping, then the fastening sleeves 309 are rotated on the threaded fastening rods 308, and then the fastening sleeves 309 are threadedly rotated to be threadedly fixed with the threaded fixing grooves 311 on both sides of the fixing sleeve 306, so that the threaded fastening rods 308 on both sides are tightly fixed on the fixing sleeve 306, the arc-shaped pressing plates 307 on both sides fix the fire hydrant pipe 7, the fixing sleeve 306 can adapt to fixing fire hydrant pipes 7 with different diameters, then the movable column 301 is pulled out from the inside of the fixing column 302, the second fixing frame 10 and the V-shaped frame 4 at the front end of the movable column 301 are pulled below the flange body 8, and the movable column 301 and the fixing column 302 are fixed by the fixing plug rod 305, so that the fire hydrant pipe is fixed and positioned, and then the flange plate is positioned.

[0037] The inner sides of the clamping pressing plates 103 are in contact with the outer sides of both sides of the flange body 8, the rear side of the flange body 8 is threadedly connected with the front side of the fire hydrant pipe 7, and the outer wall of the fire hydrant pipe 7 is in contact with the two arc-shaped pressing plates 307, the left and right sides of the flange body 8 are clamped and fixed by the clamping pressing plates 103 on the front and back sides, the flange body 8 and the fire hydrant pipe 7 are preliminarily threadedly fixed first, and then the fixing is reinforced, so that the welding is more stable.

[0038] The inner diameter of the side pressing arm 101 is greater than the outer diameter of the flange body 8, the inner diameter of the fixing sleeve 306 is greater than the outer diameter of the fire hydrant pipe 7, the flange body 8 is clamped on both sides of the inside of the side pressing arm 101, and the flange body 8 is placed in the inside of the side pressing arm 101 when the flange body 8 is welded with the fire hydrant pipe 7, and the side pressing arm 101 is relatively greater than the flange body 8, so that different sizes of flanges can be clamped. The fire hydrant pipe 7 passes through the fixing sleeve 306, and the fire hydrant pipe 7 is clamped by the arc-shaped pressing plates 307 on both sides, so the inner diameter of the fixing sleeve 306 is greater than the outer diameter of the fire hydrant pipe 7, so that different diameters of the fire hydrant pipe 7 can be clamped.

[0039] The movable column 301 is slidingly connected in the inside of the fixed column 302, the outer wall of the fixed column 302 is provided with a push rod 11, the length of the movable column 301 is increased by pulling it out of the inside of the fixed column 302 or the length is shortened by retracting it into the fixed column 302, and the fixed column 302 is pulled out through the push rod 11, which is convenient for use and placement after use.

[0040] The height of the second fixed frame 10 is equal to that of the first fixed frame 5, the V-shaped frame 4, the movable column 301 and the fixed column 302 are supported and fixed by the second fixed frame 10 and the first fixed frame 5 contacting the ground, and the stability is increased.

[0041] The bottom outer side of the first pneumatic telescopic rod 104 is provided with a protection connecting frame 9, the protection connecting frame 9 is installed on the side away from the V-shaped frame 4, and the cylinder part of the first pneumatic telescopic rod 104 on both sides is wrapped and protected by the protection connecting frame 9, and also plays a role of fixing and supporting.

[0042] The top of the arc support seat 203 wraps the bottom of the flange body 8, the arc support seat 203 contacts the bottom of the flange body 8, and the top of the arc support seat 203 is arc-shaped, so that the bottom of the flange body 8 can be wrapped and clamped to support it.

[0043] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A positioning device for hydrant flange welding, comprising a V-shaped frame (4), characterized in that, The bottom of the V-shaped frame (4) is provided with a second fixing frame (10), both sides of the V-shaped frame (4) are provided with clamping mechanisms (1), the left bottom of the V-shaped frame (4) is provided with a supporting mechanism (2), and the middle part of the second fixing frame (10) penetrates through an adjusting mechanism (3); The clamping mechanism (1) comprises first pneumatic telescopic rods (104), the first pneumatic telescopic rods (104) penetrate through both sides of the V-shaped frame (4), the output ends of the first pneumatic telescopic rods (104) are fixedly connected to one side of the side pressing arms (101) away from each other, and the inside of the side pressing arms (101) is provided with micro pneumatic telescopic rods (102) in front and back, and the output ends of the micro pneumatic telescopic rods (102) are fixedly connected with clamping pressing plates (103); The supporting mechanism (2) comprises a first support frame (201), the first support frame (201) is installed at the left bottom of the V-shaped frame (4), the inside of the first support frame (201) is rotatably connected with one end of a support column (202), the other end of the support column (202) is fixedly connected with the bottom of an arc support base (203), the right side of the support column (202) is provided with a second support frame (204), the inside of the second support frame (204) is rotatably connected with a connecting block (208), the connecting block (208) is welded with the bottom of a second pneumatic telescopic rod (205), the output end of the second pneumatic telescopic rod (205) is fixedly connected with a clamping column (206), the clamping column (206) is clamped with a clamping groove (207), and the clamping groove (207) is arranged at the right bottom of the V-shaped frame (4); The adjusting mechanism (3) comprises a movable column (301), the movable column (301) penetrates through the middle part of the second fixing frame (10), the outer wall of the movable column (301) is sleeved with a fixed column (302), a plurality of first fixing grooves (303) are arranged on the movable column (301) at equal intervals, the front side of the fixed column (302) is provided with a second fixing groove (304), the first fixing grooves (303) and the second fixing groove (304) are in threaded connection with a fixed insertion rod (305), the outer wall of the fixed column (302) is sleeved with a first fixing frame (5), and the top of the first fixing frame (5) is fixedly connected with a support plate (6); The adjusting mechanism (3) further comprises a fixed sleeve (306), the bottom of the fixed sleeve (306) is installed on the top of the support plate (6), both sides of the fixed sleeve (306) penetrate through first threaded through grooves (310), both sides of the outer wall of the fixed sleeve (306) are provided with threaded fixing grooves (311), the first threaded through grooves (310) are in threaded connection with threaded fastening rods (308), adjacent sides of the threaded fastening rods (308) are fixedly connected with arc-shaped pressing plates (307) away from each other, the threaded fastening rods (308) are in threaded connection with fastening sleeves (309), and the fastening sleeves (309) are in threaded connection with the threaded fixing grooves (311).

2. The positioning device for hydrant flange welding according to claim 1, characterized in that, The inner side of the clamping press plate (103) is in contact with both sides of the outer side of the flange body (8), the rear side of the flange body (8) is in threaded connection with the front side of the hydrant pipe (7), and the outer wall of the hydrant pipe (7) is in contact with the two arc-shaped press plates (307).

3. The positioning device for hydrant flange welding of claim 1, wherein, The inner diameter of the side pressing arm (101) is greater than the outer diameter of the flange body (8), the inner diameter of the fixed sleeve (306) is greater than the outer diameter of the hydrant pipe (7), and the two sides of the flange body (8) are clamped on the inner two sides of the side pressing arm (101).

4. The positioning device for hydrant flange welding of claim 1, wherein, The movable column (301) is slidingly connected in the inner part of the fixed column (302), and the outer wall of the fixed column (302) is provided with a push rod (11) at the rear side.

5. The positioning device for hydrant flange welding of claim 1, wherein, The height of the second fixed frame (10) and the first fixed frame (5) is equal.

6. The positioning device for hydrant flange welding of claim 1, wherein, The bottom outer side of the first pneumatic telescopic rod (104) is provided with a protection connecting frame (9), and the protection connecting frame (9) is mounted on one side of the V-shaped frame (4).

7. The positioning device for hydrant flange welding of claim 1, wherein, The top of the arc support (203) wraps the bottom of the flange body (8).

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