Special-shaped seamless steel tube

Abstract

The utility model relates to the technical field of special-shaped seamless steel tubes, in particular to a special-shaped seamless steel tube, which comprises a first steel tube, a second steel tube and a connecting dustproof mechanism, and the connecting dustproof mechanism used for quickly connecting and protecting the first steel tube and the second steel tube is arranged between the first steel tube and the second steel tube. The connecting dustproof mechanism comprises a first connecting frame and a second connecting frame which are fixedly installed on the two sides of the first steel pipe and the two sides of the second steel pipe correspondingly, and a connecting assembly is arranged on one side of the first connecting frame and one side of the second connecting frame. The first steel pipe and the second steel pipe can be quickly connected through the connecting assembly without bolts and the like, so that the connecting process can be completed without additional tools, the mounting process is greatly simplified, meanwhile, mounting and dismounting are very convenient, and the dustproof assembly is used in cooperation with the dustproof assembly; and dust and impurities can be effectively prevented from entering a connection interface.

Description

Technical Field

[0001] The utility model relates to the technical field of special-shaped seamless steel pipes, and particularly relates to a special-shaped seamless steel pipe. Background Art

[0002] Seamless steel pipes are formed by piercing a whole round steel, and steel pipes without welds on the surface are called seamless steel pipes. Special-shaped seamless steel pipes are the general term for seamless steel pipes with other cross-sectional shapes except round pipes. Special-shaped seamless steel pipes are widely used in various structural parts, tools, and mechanical components;

[0003] As shown in the reference case "A Special-shaped Seamless Steel Pipe" with the publication number "CN210565851U", tightening screws and pressing columns for tightening are arranged on the splines inside the seamless steel pipe body, and the structure is stable on the connecting rotating shaft and not easy to loosen, increasing the service life of the equipment;

[0004] When connecting existing special-shaped seamless steel pipes, they often rely on fasteners such as bolts and screws. In occasions where frequent installation and disassembly are required, these connection methods not only have a cumbersome installation process but may also lead to low connection efficiency due to component wear or tool loss.

[0005] Therefore, a special-shaped seamless steel pipe is proposed to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a special-shaped seamless steel pipe to solve the above problems, improving the problem that when connecting special-shaped seamless steel pipes, they often rely on fasteners such as bolts and screws. In occasions where frequent installation and disassembly are required, these connection methods not only have a cumbersome installation process but may also lead to low connection efficiency due to component wear or tool loss.

[0007] The utility model realizes the above purpose through the following technical solutions. A special-shaped seamless steel pipe includes: a first steel pipe and a second steel pipe, and a connecting dust-proof mechanism. The connecting dust-proof mechanism for quickly connecting and protecting the first steel pipe and the second steel pipe is arranged between the first steel pipe and the second steel pipe. Among them, the connecting dust-proof mechanism includes a first connecting frame and a second connecting frame respectively fixedly installed on both sides of the first steel pipe and the second steel pipe. A connecting component is arranged on one side of the first connecting frame and the second connecting frame, and a dust-proof component is arranged on one side of the first connecting frame. The first steel pipe and the second steel pipe can be quickly connected through the connecting component without bolts, etc., so that the connection process can be completed without additional tools, greatly simplifying the installation process. At the same time, both installation and disassembly are very convenient, and when used in cooperation with the dust-proof component, it can effectively prevent dust and impurities from entering the connection interface.

[0008] Preferably, the connection component includes a first support plate fixedly installed on one side of the first connection frame, a second support plate fixedly installed on one side of the second connection frame, a card slot formed inside the second support plate, a connection slot formed on one side of the second support plate, the connection slot communicating with the card slot, a limiting block slidably installed on one side of the second support plate, a fixing plate fixedly installed on one side of the first support plate, two clamping plates slidably installed on one side of the fixing plate, both of the two clamping plates being aligned with the connection slot. When connecting, the first connection frame of the first steel pipe can be brought close to the second connection frame of the second steel pipe, so that the first support plate approaches the second support plate, enabling the clamping plates to enter the card slot of the second clamping plate through the connection slot. Then, the limiting block is moved downward to move the two clamping plates into the card slot, making it impossible for the two clamping plates to pass through the connection slot again, thus completing the connection, which is very convenient.

[0009] Preferably, the connection component further includes a movable block fixedly installed on one side of the clamping plate, the movable block being slidably connected to the fixing plate. A guide rod penetrates through the surface of the movable block, the guide rod being located inside the fixing plate. A first spring is sleeved around the surface of the guide rod, and the other end of the first spring is fixedly connected to the movable block. When the clamping plate moves, it synchronously drives the movable block to compress the first spring, causing the first spring to deform. When the limiting block moves upward, the first spring can reset the movable block and the clamping plate, so that the reset clamping plate separates from the connection slot, making the disassembly very convenient.

[0010] Preferably, one side of the clamping plate is provided with an inclined surface angle, and both sides of the bottom of the limiting block are provided with rounded corners. Due to the inclined surface angle of the clamping plate and the rounded corners of the limiting block, when the limiting block moves downward, both rounded corners come into contact with the inclined surface angle of the clamping plate, thus better pushing the clamping plate into the card slot.

[0011] Preferably, a positioning block is slidably installed on one side of the second support plate, the positioning block being located on one side of the limiting block. Connecting rods are fixedly installed on both sides of the positioning block. Two connecting pipes are fixedly installed inside the second support plate. The two connecting rods are respectively slidably connected to the two connecting pipes. A second spring is fixedly connected between one end of each connecting rod and the inner wall of the connecting pipe. A plurality of contact blocks are fixedly installed on one side of the positioning block. A plurality of grooves adapted to the contact blocks are formed on one side of the limiting block. When the limiting block moves downward, it is necessary to first move the positioning block on one side, so that the positioning block synchronously drives a plurality of contact blocks away from the limiting block. After the limiting block finishes moving, the second spring resets the connecting rod to reset the positioning block, so that the positioning block drives a plurality of contact blocks to tightly press against the limiting block. At this time, the plurality of contact blocks are evenly clamped with the corresponding grooves, making the limiting block more stable and not sliding during use.

[0012] Preferably, the dust-proof component includes a dust-proof sleeve fixedly installed on one side of the first connection frame. A rubber sleeve is fixedly installed on one side of the second connection frame. A sealing groove is formed on one side of the rubber sleeve. The dust-proof sleeve is slidably connected to the sealing groove. When the first connection frame approaches the second connection frame, the dust-proof sleeve synchronously enters the adjacent sealing groove. The rubber sleeve and the dust-proof sleeve are tightly connected to provide dust-proof protection for the interiors of the first connection frame and the second connection frame, preventing external dust from entering.

[0013] Preferably, the dust-proof component further includes a plurality of sealing rings fixedly installed on the surface of the dust-proof sleeve. All the plurality of sealing rings are hermetically connected to the inner wall of the sealing groove. When the dust-proof sleeve enters the sealing groove, it synchronously drives the plurality of sealing rings into the sealing groove. Through the plurality of sealing rings, more efficient sealing can be ensured when the dust-proof sleeve is connected to the sealing groove.

[0014] The beneficial effects of the present utility model are:

[0015] 1. The connection component can quickly connect the first steel pipe and the second steel pipe without bolts or the like, enabling the connection process to be completed without additional tools, greatly simplifying the installation process. At the same time, both installation and disassembly are very convenient. When used in conjunction with the dust-proof component, it can effectively prevent dust and impurities from entering the connection interface;

[0016] 2. When the first connection frame approaches the second connection frame, the dust-proof sleeve synchronously enters the adjacent sealing groove. The rubber sleeve and the dust-proof sleeve are tightly connected to provide dust-proof protection for the interiors of the first connection frame and the second connection frame, preventing external dust from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the structures of the first connection frame and the second connection frame of the present utility model;

[0019] Figure 3 is a schematic diagram of the first connection frame of the present utility model;

[0020] Figure 4 is Figure 3 an enlarged view of A in

[0021] Figure 5 is a schematic diagram of the second connection frame of the present utility model;

[0022] Figure 6 is a schematic diagram of the structures of the limiting block and the positioning block of the present utility model.

[0023] In the figure: 1. First steel pipe; 2. Second steel pipe; 3. Connecting dust-proof mechanism; 31. First connecting frame; 32. Second connecting frame; 33. Connecting component; 331. First support plate; 332. Fixed plate; 333. Clamping plate; 334. Movable block; 335. Guide rod; 336. First spring; 337. Second support plate; 338. Connecting groove; 339. Card slot; 3310. Limit block; 3311. Positioning block; 3312. Contact block; 3313. Connecting pipe; 3314. Connecting rod; 3315. Second spring; 34. Dust-proof component; 341. Dust-proof sleeve; 342. Sealing ring; 343. Rubber sleeve; 344. Sealing groove. Detailed implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0025] During specific implementation: As Figures 1-6 shown, a special-shaped seamless steel pipe includes: a first steel pipe 1 and a second steel pipe 2, and a connecting dust-proof mechanism 3. The connecting dust-proof mechanism 3 for quickly connecting and protecting the first steel pipe 1 and the second steel pipe 2 is arranged between the first steel pipe 1 and the second steel pipe 2. Among them, the connecting dust-proof mechanism 3 includes a first connecting frame 31 and a second connecting frame 32 respectively fixedly installed on both sides of the first steel pipe 1 and the second steel pipe 2. A connecting component 33 is arranged on one side of the first connecting frame 31 and the second connecting frame 32, and a dust-proof component 34 is arranged on one side of the first connecting frame 31. The first steel pipe 1 and the second steel pipe 2 can be quickly connected through the connecting component 33 without using bolts or the like, so that the connection process can be completed without additional tools, greatly simplifying the installation process. At the same time, the installation and disassembly are very convenient. Moreover, when used in cooperation with the dust-proof component 34, it can effectively prevent dust and impurities from entering the connection interface.

[0026] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown in the figure, the connecting component 33 includes a first support plate 331 fixedly installed on one side of the first connecting frame 31, a second support plate 337 fixedly installed on one side of the second connecting frame 32. A card slot 339 is formed inside the second support plate 337, and a connecting slot 338 is formed on one side of the second support plate 337. The connecting slot 338 communicates with the card slot 339. A limiting block 3310 is slidably installed on one side of the second support plate 337. A fixing plate 332 is fixedly installed on one side of the first support plate 331. Two clamping plates 333 are slidably installed on one side of the fixing plate 332. The two clamping plates 333 are aligned with the connecting slot 338. When connecting, the first connecting frame 31 of the first steel pipe 1 can be brought close to the second connecting frame 32 of the second steel pipe 2, so that the first support plate 331 approaches the second support plate 337, and the clamping plates 333 enter the inside of the card slot 339 of the second clamping plate 333 through the connecting slot 338. Then, the limiting block 3310 is moved downward to move the two clamping plates 333 into the card slot 339, so that the two clamping plates 333 can no longer pass through the connecting slot 338, and the connection can be completed, which is very convenient. The connecting component 33 further includes a movable block 334 fixedly installed on one side of the clamping plate 333. The movable block 334 is slidably connected to the fixing plate 332. A guide rod 335 is penetrated through the surface of the movable block 334. The guide rod 335 is located inside the fixing plate 332. A first spring 336 is sleeved through the surface of the guide rod 335. The other end of the first spring 336 is fixedly connected to the movable block 334. When the clamping plate 333 moves, the movable block 334 is synchronously driven to squeeze the first spring 336, causing the first spring 336 to deform. When the limiting block 3310 moves upward, the first spring 336 can reset the movable block 334 and the clamping plate 333, so that the reset clamping plate 333 is separated from the connecting slot 338, making the disassembly very convenient;

[0027] One side of the pallet 333 is provided with an inclined surface angle, and both sides of the bottom of the limit block 3310 are set as rounded corners. Through the inclined surface angle of the pallet 333 and the rounded corners of the limit block 3310, when the limit block 3310 moves downward, both rounded corners are in contact with the inclined surface angle of the pallet 333, so as to better push the pallet 333 to move into the inside of the card slot 339. A positioning block 3311 is slidably installed on one side of the second support plate 337. The positioning block 3311 is located on one side of the limit block 3310. Connecting rods 3314 are fixedly installed on both sides of the positioning block 3311. Two connecting pipes 3313 are fixedly installed inside the second support plate 337. The two connecting rods 3314 are respectively slidably connected to the two connecting pipes 3313. A second spring 3315 is fixedly connected between one end of the connecting rod 3314 and the inner wall of the connecting pipe 3313. A plurality of contact blocks 3312 are fixedly installed on one side of the positioning block 3311. A plurality of grooves adapted to the contact blocks 3312 are formed on one side of the limit block 3310. When the limit block 3310 moves downward, it is necessary to first move the positioning block 3311 on one side, so that the positioning block 3311 synchronously drives a plurality of contact blocks 3312 away from the limit block 3310. After the limit block 3310 moves, the second spring 3315 resets the connecting rod 3314 to reset the positioning block 3311, so that the positioning block 3311 drives a plurality of contact blocks 3312 to tightly press against the limit block 3310. At this time, the plurality of contact blocks 3312 are evenly clamped with the corresponding grooves, so that the limit block 3310 is more stable and will not slide during use.

[0028] As Figure 2 , Figure 3 and Figure 5 shown, the dust-proof component 34 includes a dust-proof sleeve 341 fixedly installed on one side of the first connection frame 31. A rubber sleeve 343 is fixedly installed on one side of the second connection frame 32. A sealing groove 344 is formed on one side of the rubber sleeve 343. The dust-proof sleeve 341 is slidably connected to the sealing groove 344. When the first connection frame 31 approaches the second connection frame 32, the dust-proof sleeve 341 synchronously enters the adjacent sealing groove 344. The rubber sleeve 343 is tightly connected to the dust-proof sleeve 341 to provide dust-proof protection for the inside of the first connection frame 31 and the second connection frame 32, and prevent external dust from entering. The dust-proof component 34 further includes a plurality of sealing rings 342 fixedly installed on the surface of the dust-proof sleeve 341. The plurality of sealing rings 342 are all hermetically connected to the inner wall of the sealing groove 344. When the dust-proof sleeve 341 enters the sealing groove 344, the plurality of sealing rings 342 are synchronously driven into the sealing groove 344. Through the plurality of sealing rings 342, higher sealing performance can be ensured when the dust-proof sleeve 341 is connected to the sealing groove 344.

[0029] When the utility model is in use and connection is to be made, the first connection frame 31 of the first steel pipe 1 can be brought close to the second connection frame 32 of the second steel pipe 2, so that the first support plate 331 is close to the second support plate 337, and the clamping plate 333 enters the inside of the clamping groove 339 of the second clamping plate 333 through the connection groove 338. Then, the limiting block 3310 is moved downward to move the two clamping plates 333 into the inside of the clamping groove 339, so that the two clamping plates 333 can no longer pass through the connection groove 338, and the connection can be completed. When the clamping plate 333 moves, the movable block 334 is synchronously driven to squeeze the first spring 336, causing the first spring 336 to deform. When the limiting block 3310 moves upward, the first spring 336 can reset the movable block 334 and the clamping plate 333, so that the reset clamping plate 333 is separated from the connection groove 338, making the disassembly very convenient. When the limiting block 3310 moves downward, the positioning block 3311 on one side needs to be moved first, so that the positioning block 3311 synchronously drives a plurality of contact blocks 3312 away from the limiting block 3310. After the limiting block 3310 finishes moving, the second spring 3315 resets the connecting rod 3314 to reset the positioning block 3311, so that the positioning block 3311 drives a plurality of contact blocks 3312 to tightly press against the limiting block 3310. At this time, the plurality of contact blocks 3312 are evenly clamped with the corresponding grooves, making the limiting block 3310 more stable and not sliding during use. When the first connection frame 31 is close to the second connection frame 32, the dust-proof sleeve 341 synchronously enters the adjacent sealing groove 344 inside, and is tightly connected with the dust-proof sleeve 341 through the rubber sleeve 343 to perform dust-proof protection on the inside of the first connection frame 31 and the second connection frame 32, preventing external dust from entering.

[0030] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A special-shaped seamless steel pipe, characterized in that, Including: A first steel pipe (1) and a second steel pipe (2); A connecting dust-proof mechanism (3) is arranged between the first steel pipe (1) and the second steel pipe (2) for quickly connecting and protecting the first steel pipe (1) and the second steel pipe (2). Among them, the connecting dust-proof mechanism (3) includes a first connecting frame (31) and a second connecting frame (32) respectively and fixedly installed on both sides of the first steel pipe (1) and the second steel pipe (2). A connecting component (33) is arranged on one side of the first connecting frame (31) and the second connecting frame (32), and a dust-proof component (34) is arranged on one side of the first connecting frame (31).

2. The special-shaped seamless steel pipe according to claim 1, wherein: The connecting component (33) includes a first support plate (331) fixedly installed on one side of the first connecting frame (31). A second support plate (337) is fixedly installed on one side of the second connecting frame (32). A card slot (339) is opened inside the second support plate (337). A connecting slot (338) is opened on one side of the second support plate (337). The connecting slot (338) communicates with the card slot (339). A limiting block (3310) is slidably installed on one side of the second support plate (337). A fixing plate (332) is fixedly installed on one side of the first support plate (331). Two clamping plates (333) are slidably installed on one side of the fixing plate (332). The two clamping plates (333) are both aligned with the connecting slot (338).

3. A special-shaped seamless steel pipe according to claim 1, characterized in that: The connecting component (33) further includes a movable block (334) fixedly installed on one side of the clamping plate (333). The movable block (334) is slidably connected with the fixing plate (332). A guide rod (335) is penetrated through the surface of the movable block (334). The guide rod (335) is located inside the fixing plate (332). A first spring (336) is penetrated and sleeved on the surface of the guide rod (335). The other end of the first spring (336) is fixedly connected with the movable block (334).

4. The special-shaped seamless steel pipe according to claim 2, wherein: One side of the clamping plate (333) is provided with an inclined surface angle, and both sides of the bottom of the limiting block (3310) are provided with rounded corners.

5. The special-shaped seamless steel pipe according to claim 2, wherein: A positioning block (3311) is slidably installed on one side of the second support plate (337). The positioning block (3311) is located on one side of the limiting block (3310). Connecting rods (3314) are fixedly installed on both sides of the positioning block (3311). Two connecting pipes (3313) are fixedly installed inside the second support plate (337). The two connecting rods (3314) are respectively slidably connected with the two connecting pipes (3313). A second spring (3315) is fixedly connected between one end of the connecting rod (3314) and the inner wall of the connecting pipe (3313). A plurality of contact blocks (3312) are fixedly installed on one side of the positioning block (3311). A plurality of grooves adapted to the contact blocks (3312) are opened on one side of the limiting block (3310).

6. The special-shaped seamless steel pipe according to claim 1, wherein: The dust-proof component (34) includes a dust-proof sleeve (341) fixedly installed on one side of the first connection frame (31). A rubber sleeve (343) is fixedly installed on one side of the second connection frame (32). A sealing groove (344) is formed on one side of the rubber sleeve (343). The dust-proof sleeve (341) is slidably connected to the sealing groove (344).

7. An abnormal-shaped seamless steel pipe according to claim 1, characterized in that: The dust-proof component (34) further includes a plurality of sealing rings (342) fixedly installed on the surface of the dust-proof sleeve (341). All of the plurality of sealing rings (342) are hermetically connected to the inner wall of the sealing groove (344).

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