Low-temperature-resistant steel pipe with clamping assembly

Abstract

The low-temperature-resistant steel pipe comprises a first steel pipe body and a second steel pipe body, flange plates are fixedly installed at the opposite ends of the first steel pipe body and the second steel pipe body respectively, the two flange plates are fixedly connected through bolts, and inserting frames are symmetrically installed on the outer surface of the first steel pipe body. An inserting sleeve matched with the inserting frame is fixedly installed on the outer surface of the second steel pipe, and a plurality of clamping teeth are installed on the front side and the rear side of the portion, located in the inserting sleeve, of the inserting frame at equal intervals. The low-temperature-resistant steel pipe with the clamping assembly is reasonable in structural design and convenient to use, after primary connection of the two steel pipes is achieved through threads, a set of clamping structure is additionally arranged, the connection compactness of the two steel pipes is further improved, the steel pipes can still keep good connectivity even after bolts are loosened, and the service life of the steel pipes is prolonged. The situation of looseness is not easy to generate, and the use effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe technical field, concretely is a low temperature resistant steel pipe with clamping assembly. BACKGROUND

[0002] Building steel pipes can be divided into seamless steel pipes and seamed steel pipes according to whether they are seamed, and the seamed steel pipes are divided into spiral steel pipes and straight seam steel pipes according to different welds, and the two are very common in building pile driving, structure, steel structure, load bearing and drainage, and the connecting device is a mechanism or assembly for connecting steel pipes.

[0003] The steel pipe connecting mode widely used at present mainly is sleeve type and self-fixing type, both of which realize connection only by screwing, but surface plating falls off after long-term use, and connection loosening easily occurs, therefore, the low temperature resistant steel pipe with clamping assembly is provided to solve the problems in the above background technology. UTILITY MODEL CONTENTS

[0004] The utility model discloses a low temperature resistant steel pipe with clamping assembly, which solves the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a low temperature resistant steel pipe with clamping assembly, including first steel pipe and second steel pipe, the opposite end of first steel pipe and second steel pipe all is fixedly installed with flange plate, and the two flange plates are fixedly connected through bolts, the outer surface of first steel pipe is symmetrically installed with the plug -in frame, the outer surface of second steel pipe is fixedly installed with the plug -in sleeve that is matched with plug -in frame, the plug -in frame is installed in the plug -in sleeve, and a plurality of claws are equidistantly installed on the front and back sides of the plug -in frame, the inside of plug -in sleeve is slidably connected with two rack plates matched with claw, the top of plug -in sleeve is fixedly installed with rectangular shell, and two locking rods are slidably connected in the vertical direction in the position of rack plate in the rectangular shell.

[0006] Further, the rack plate is fixedly connected with a pull rod on the side away from the plug-in frame, one end of the pull rod penetrates to the outside of the plug-in sleeve and is fixedly connected with a pull handle, and the pull rod and the pull handle facilitate the staff to pull and move the rack plate.

[0007] Further, the top of the inner wall of the rectangular shell is symmetrically installed with guide rods, a lifting plate is slidably connected on the guide rods in the axial direction, and one end of the locking rod is fixedly connected with the lifting plate, so that the guide rods limit the lifting plate, ensuring that the lifting plate moves in the vertical direction and ensuring that the locking rod moves vertically.

[0008] Further, the locking rod surface and inside the rectangular shell are sleeved with a tension spring, two ends of the tension spring are fixedly connected with the plug-in sleeve and the lifting plate respectively, the tension spring can pull the lifting plate to move to one side of the steel pipe, thereby ensuring the stability of the locking rod inserted into the rack plate.

[0009] Further, the lifting plate is fixedly connected with a vertical rod on the side away from the plug-in sleeve, one end of the vertical rod penetrates to the outside of the rectangular shell and is fixedly connected with a pull ring, the vertical rod and the pull ring facilitate pulling the lifting plate.

[0010] Further, the plug-in frame adopts an "L" type structure, and the flange plate is provided with a penetrating hole matched with the plug-in frame.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] After the plug-in frame is inserted into the plug-in sleeve through the right flange plate, the two flange plates are pasted, and the preliminary fixation is realized by the bolt, thereby forming the preliminary connection of the first steel pipe and the second steel pipe, at this time, the pull ring can be pulled to the outside, so that the lifting plate and the locking rod move away from the rack plate, and then the pull rod and the pull handle are pushed inward, so that the rack plate is clamped on the plurality of clamping teeth, the plug-in frame is fixed, the locking rod end is inserted into the plug hole above the rack plate, the rack plate is fixed, and the plug-in frame and the first steel pipe are fixed, the clamping connection between the two steel pipes is formed, and the bolt on the flange plate is matched, so that the anti-disengagement effect is greatly improved, the low-temperature-resistant steel pipe with the clamping assembly has reasonable structure design and convenient use, after the preliminary connection of the two steel pipes is realized by the screw thread, a set of clamping structure is added to further improve the tightness of the connection of the two steel pipes, so that the steel pipes can still maintain good connectivity even if the bolt is loose, the loosening condition is not easy to occur, and good use effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 2 It is a front half cut structure schematic view of the utility model;

[0015] Figure 3 It is a three-dimensional structure schematic view of the utility model Figure 2 It is a side view structure sectional view of A-A of the utility model;

[0016] Figure 4 It is a connection structure schematic view between the plug-in frame and the rack plate of the utility model.

[0017] In the figure: 1 first steel pipe, 2 second steel pipe, 3 flange, 4 insertion frame, 5 insertion sleeve, 6 clamping tooth, 7 rack plate, 8 rectangular shell, 9 locking rod, 10 pull rod, 11 pull handle, 12 guide rod, 13 lifting plate, 14 tension spring, 15 vertical rod, 16 pull ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-4 A low-temperature-resistant steel pipe with a clamping assembly, comprising a first steel pipe 1 and a second steel pipe 2, both the first steel pipe 1 and the second steel pipe 2 are subjected to low-temperature treatment, which is mature prior art and will not be described here, and both the first steel pipe 1 and the second steel pipe 2 are fixedly provided with a flange 3 at opposite ends, the two flanges 3 are fixedly connected through bolts, the bolts and the flanges 3 can form the initial connection between the two steel pipes, the outer surface of the first steel pipe 1 is symmetrically provided with an insertion frame 4, the outer surface of the second steel pipe 2 is fixedly provided with an insertion sleeve 5 matched with the insertion frame 4, the insertion frame 4 located in the insertion sleeve 5 is symmetrically provided with a plurality of clamping teeth 6 at equal intervals on the front and rear sides, the insertion sleeve 5 is slidably connected with two rack plates 7 matched with the clamping teeth 6, the rack plates 7 and the clamping teeth 6 are engaged to fix the insertion frame 4, thereby fixing the first steel pipe 1 and forming the clamping connection between the two steel pipes, and the bolts further improve the anti-loosening effect of the connected steel pipes, the top of the insertion sleeve 5 is fixedly provided with a rectangular shell 8, two locking rods 9 are slidably connected in the rectangular shell 8 at positions corresponding to the rack plates 7 along the vertical direction, and the locking rods 9 can fix the rack plates 7, thereby ensuring the stability of the engagement between the rack plates 7, the clamping teeth 6 and the insertion frame 4.

[0020] Specifically, the rack plate 7 is fixedly connected with a pull rod 10 at the side away from the insertion frame 4, one end of the pull rod 10 penetrates through the insertion sleeve 5 and is fixedly connected with a pull handle 11 outside the insertion sleeve 5, and the pull rod 10 and the pull handle 11 facilitate the staff to pull and move the position of the rack plate 7.

[0021] Specifically, the top of the inner wall of the rectangular shell 8 is symmetrically provided with a guide rod 12, a lifting plate 13 is slidably connected on the two guide rods 12 along the axial direction, one end of the locking rod 9 is fixedly connected with the lifting plate 13, and the guide rod 12 serves to limit the lifting plate 13 to move in the vertical direction, thereby ensuring the vertical movement of the locking rod 9.

[0022] Specific, locking rod 9 surface and located inside the rectangular shell 8 is sleeved with tension spring 14, both ends of tension spring 14 are fixedly connected with plug-in sleeve 5 and lifting plate 13 respectively, tension spring 14 can pull lifting plate 13 to move to one side of the steel pipe, thereby ensuring the stability of locking rod 9 inserted into rack plate 7.

[0023] Specific, lifting plate 13 is fixedly connected with vertical rod 15 away from the side of plug-in sleeve 5, one end of vertical rod 15 is fixedly connected with pull ring 16 outside the rectangular shell 8, vertical rod 15 and pull ring 16 facilitate pulling lifting plate 13.

[0024] Specific, plug-in frame 4 adopts "L" type structure, flange plate 3 is provided with a through hole matched with plug-in frame 4.

[0025] The low-temperature-resistant steel pipe with the clamping assembly has reasonable structure design and convenient use, after the preliminary connection of the two steel pipes is realized by using threads, a set of clamping structures are added to further improve the tightness of the connection of the two steel pipes, so that the steel pipes can still maintain good connectivity even after the bolts are loosened, the loosening is not easy to occur, and good use effect is achieved.

[0026] In use, plug-in frame 4 is inserted into plug-in sleeve 5 after passing through right flange plate 3, at this time, two flange plates 3 are attached, preliminary fixation is realized by using bolts, thereby forming the preliminary connection of first steel pipe 1 and second steel pipe 2, at this time, pull ring 16 can be pulled outward, so that lifting plate 13 and locking rod 9 move away from rack plate 7, pull rod 10 and pull handle 11 are pushed inward, so that rack plate 7 is clamped on a plurality of clamping teeth 6, the engagement fixation of plug-in frame 4 is formed, then pull ring 16 is loosened, lifting plate 13 and locking rod 9 are pulled back to the original position by tension spring 14, so that the end of locking rod 9 is inserted into the insertion hole above rack plate 7, the fixation of rack plate 7 is formed, thereby forming the fixation of plug-in frame 4 and first steel pipe 1, the clamping connection between the two steel pipes is formed, and the bolts on flange plate 3 are matched, so that the anti-disengagement effect is greatly improved.

[0027] Although the embodiments of the utility model 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 these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. Cryogenic steel pipe with a clamping assembly, comprising a first steel pipe (1) and a second steel pipe (2), characterized in that: The first steel pipe (1) and the second steel pipe (2) are fixedly installed with flanges (3) at opposite ends, the two flanges (3) are fixedly connected through bolts, the outer surface of the first steel pipe (1) is symmetrically installed with a plug-in rack (4), the outer surface of the second steel pipe (2) is fixedly installed with a plug-in sleeve (5) matched with the plug-in rack (4), a plurality of clamping teeth (6) are installed at equal intervals on the front and rear sides of the plug-in rack (4) in the plug-in sleeve (5), the plug-in sleeve (5) is slidably connected with two rack plates (7) matched with the clamping teeth (6), the top of the plug-in sleeve (5) is fixedly installed with a rectangular shell (8), two locking rods (9) are slidably connected in the rectangular shell (8) at positions corresponding to the rack plates (7) in the vertical direction.

2. A cryogenic steel pipe having a clamp assembly according to claim 1, characterized in that: The side of the rack plate (7) away from the plug-in rack (4) is fixedly connected with a pull rod (10), one end of the pull rod (10) penetrates through the plug-in sleeve (5) and is fixedly connected with a pull handle (11) outside.

3. A cryogenic steel pipe having a clamp assembly according to claim 2, characterized in that: The top of the inner wall of the rectangular shell (8) is symmetrically installed with guide rods (12), the lifting plates (13) are slidably connected on the guide rods (12) in the axial direction, and one end of the locking rod (9) is fixedly connected with the lifting plate (13).

4. A cryogenic steel pipe having a clamp assembly according to claim 3, characterized in that: The surface of the locking rod (9) and the inside of the rectangular shell (8) are sleeved with a tension spring (14), and the two ends of the tension spring (14) are fixedly connected with the plug-in sleeve (5) and the lifting plate (13) respectively.

5. A cryogenic steel pipe having a clamp assembly according to claim 4, characterized in that: The side of the lifting plate (13) away from the plug-in sleeve (5) is fixedly connected with a vertical rod (15), and one end of the vertical rod (15) penetrates through the rectangular shell (8) and is fixedly connected with a pull ring (16) outside.

6. A cryogenic steel pipe having a clamp assembly according to claim 5, characterized in that: The plug-in rack (4) adopts an "L" type structure, and the flange (3) is provided with a through hole matched with the plug-in rack (4).

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