Cold-drawn precision steel pipe

Abstract

The utility model discloses a cold-drawn precision steel pipe, which belongs to the technical field of cold-drawn precision steel pipes and comprises a cold-drawn precision steel pipe body, two inserting blocks are fixedly mounted at the top of the cold-drawn precision steel pipe body, two inserting grooves are formed in the bottom of the cold-drawn precision steel pipe body, and the outer sides of the inserting blocks are movably inserted into the corresponding inserting grooves. Rectangular moving grooves are formed in the two sides of the cold-drawn precision steel pipe body, rectangular moving frames are slidably connected to the inner sides of the two rectangular moving grooves, and inclined plates are slidably connected to the interiors of the rectangular moving frames. According to the cold-drawn precision steel pipe body dismounting device, through mutual cooperation of the rectangular moving frame, the rectangular moving groove, the pulling plate, the circular inserting rod, a fixing ring, a reset spring, a clamping ring, a fixing block, a bolt, a nut, a second inserting plate and a first inserting plate, when a cold-drawn precision steel pipe body needs to be maintained or replaced, the cold-drawn precision steel pipe body is more convenient to dismount; and therefore, the cold-drawn precision steel pipe body can be conveniently maintained or replaced, and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-drawn precision steel pipes, in particular to a cold-drawn precision steel pipe. Background Technique

[0002] Cold-drawn precision steel pipes are a kind of high-precision steel pipe materials after cold-drawing or hot-rolling treatment. Cold-drawn precision seamless steel pipes are precision cold-drawn seamless pipes with high dimensional accuracy and good surface finish for mechanical structures and hydraulic equipment. Due to the advantages of no oxide layer on the inner and outer walls of precision steel pipes, no leakage under high pressure, and no cracks after flattening, they are mainly used to produce products of pneumatic or hydraulic components, such as cylinders or oil cylinders.

[0003] When the existing cold-drawn precision steel pipes are connected, generally splicing or welding methods are adopted. This assembly method not only takes time and effort, but also has poor stability after installation, it is difficult to achieve good sealing performance. At the same time, when it is necessary to repair or replace the cold-drawn precision steel pipes, it is not convenient to disassemble the cold-drawn precision steel pipes, and the practicability is not strong; therefore, we propose a cold-drawn precision steel pipe to solve this problem. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cold-drawn precision steel pipe to solve the problems raised in the above background technique.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A cold-drawn precision steel pipe, comprising: a cold-drawn precision steel pipe body, two plug-in blocks are fixedly installed at the top of the cold-drawn precision steel pipe body, two plug-in slots are opened at the bottom of the cold-drawn precision steel pipe body, the outside of the plug-in block is movably inserted into the corresponding plug-in slot, rectangular moving slots are opened on both sides of the cold-drawn precision steel pipe body, rectangular moving frames are slidably connected to the inner sides of the two rectangular moving slots, a circular plug rod is slidably inserted into the rectangular moving frame, a fixing ring is fixedly installed on the outside of the circular plug rod, one end of the fixing ring is fixedly connected to a return spring, one end of the return spring is fixedly connected to the inner side wall of the rectangular moving frame, one end of the circular plug rod is movably inserted into the inside of the cold-drawn precision steel pipe body, a sloping plate is slidably connected to the inside of the rectangular moving frame, a first plug-in plate is fixedly installed at the bottom of the sloping plate, and the outside of the first plug-in plate is movably inserted into the cold-drawn precision steel pipe body and the plug-in block.

[0007] Preferably, two clamping rings are movably abutted against the outer side of the cold-drawn precision steel pipe body. Fixed blocks are fixedly installed at the tops of the two clamping rings. A threaded hole is formed between the corresponding fixed blocks. A bolt is threadedly connected in the threaded hole. Second plugging plates are fixedly installed on the inner sides of the two clamping rings. The outer sides of the two second plugging plates are movably plugged into the interiors of the corresponding cold-drawn precision steel pipe body and the plugging block.

[0008] Preferably, four U-shaped guide plates are fixedly installed on both sides of the cold-drawn precision steel pipe body. The outer sides of the two U-shaped guide plates on the same side are slidably connected to the interior of the rectangular moving frame on the same side.

[0009] Preferably, two plugging holes are formed on the surface of the plugging block. The outer sides of the first plugging plate and the second plugging plate are movably plugged into the corresponding plugging holes.

[0010] Preferably, a nut is threadedly connected to the outer side of the bolt. One side of the nut is movably abutted against one side of the corresponding fixed block.

[0011] Preferably, a pulling plate is fixedly installed between the two rectangular moving frames.

[0012] In the present utility model, for the cold-drawn precision steel pipe, by pulling the circular plug rod, the circular plug rod is disengaged from the interiors of the cold-drawn precision steel pipe body and the rectangular moving frame. Then, by pulling the pulling plate upward, the two rectangular moving frames are driven to move upward along the rectangular moving groove and the U-shaped guide plate. Further, the inclined plate slidably connected inside the rectangular moving frame is driven to move. Further, the first plugging plate fixed thereto is driven to move, so that the first plugging plate is disengaged from the interiors of the plugging block and the cold-drawn precision steel pipe body, and the first plugging plate loses the fixation on the plugging block and the cold-drawn precision steel pipe body.

[0013] In the present utility model, for the cold-drawn precision steel pipe, by twisting the bolt, the bolt and the nut are driven to disengage. Further, the bolt is disengaged from the interior of the fixed block, so that the restriction on the fixed block is lost. Then, by pulling the two clamping rings away from each other, the second plugging plates fixed thereto are driven to move away from each other. Further, the second plugging plates are disengaged from the interiors of the plugging block and the cold-drawn precision steel pipe body, and the fixation on the plugging block and the cold-drawn precision steel pipe body is lost.

[0014] The structure of the present utility model is reasonably designed. Through the mutual cooperation among the rectangular moving frame, the rectangular moving groove, the pulling plate, the circular plug rod, the fixed ring, the return spring, the clamping ring, the fixed block, the bolt, the nut, the second plugging plate and the first plugging plate, when maintenance or replacement of the cold-drawn precision steel pipe body is required, it is more convenient to disassemble the cold-drawn precision steel pipe body, so as to facilitate the maintenance or replacement of the cold-drawn precision steel pipe body, and the practicability is stronger. Description of the Drawings

[0015] Figure 1 Schematic three - dimensional structure diagram of a cold - drawn precision steel pipe proposed by the present utility model;

[0016] Figure 2 Schematic cross - sectional structure diagram of a cold - drawn precision steel pipe proposed by the present utility model;

[0017] Figure 3 Schematic structure diagram of the clamping ring, bolt, nut and the second plug - in plate proposed by the present utility model;

[0018] Figure 4 is Figure 2 Partial enlarged view of part A in

[0019] In the figure: 1. Cold - drawn precision steel pipe body; 2. Plug - in block; 3. Plug - in slot; 4. Rectangular moving frame; 5. Rectangular moving slot; 6. First plug - in plate; 7. Inclined plate; 8. Circular plug - in rod; 9. Fixed ring; 10. Return spring; 11. U - shaped guide plate; 12. Pulling plate; 13. Clamping ring; 14. Fixed block; 15. Bolt; 16. Nut; 17. Second plug - in plate; 18. Plug - in hole. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Refer to Figures 1-4 , a cold - drawn precision steel pipe, comprising: a cold - drawn precision steel pipe body 1, two plug - in blocks 2 are fixedly installed at the top of the cold - drawn precision steel pipe body 1, two plug - in slots 3 are opened at the bottom of the cold - drawn precision steel pipe body 1, the outer sides of the plug - in blocks 2 are movably inserted into the corresponding plug - in slots 3, rectangular moving slots 5 are opened on both sides of the cold - drawn precision steel pipe body 1, rectangular moving frames 4 are slidably connected to the inner sides of the two rectangular moving slots 5, a circular plug - in rod 8 is slidably inserted into the rectangular moving frame 4, a fixed ring 9 is fixedly installed on the outer side of the circular plug - in rod 8, one end of the fixed ring 9 is fixedly connected to a return spring 10, one end of the return spring 10 is fixedly connected to the inner side wall of the rectangular moving frame 4, one end of the circular plug - in rod 8 is movably inserted into the inside of the cold - drawn precision steel pipe body 1, an inclined plate 7 is slidably connected to the inside of the rectangular moving frame 4, a first plug - in plate 6 is fixedly installed at the bottom of the inclined plate 7, and the outer side of the first plug - in plate 6 is movably inserted into the inside of the cold - drawn precision steel pipe body 1 and the plug - in block 2.

[0022] In this embodiment, two clamping rings 13 are movably abutted against the outer side of the cold-drawn precision steel pipe body 1. Fixed blocks 14 are fixedly installed at the tops of the two clamping rings 13. A threaded hole is formed between the corresponding fixed blocks 14. A bolt 15 is threadedly connected in the threaded hole. Second insertion plates 17 are fixedly installed on the inner sides of the two clamping rings 13. The outer sides of the two second insertion plates 17 are movably inserted into the corresponding cold-drawn precision steel pipe body 1 and the insertion block 2, and the cold-drawn precision steel pipe body 1 and the insertion block 2 are secondarily fixed through the second insertion plates 17.

[0023] In this embodiment, four U-shaped guide plates 11 are fixedly installed on both sides of the cold-drawn precision steel pipe body 1. The outer sides of the two U-shaped guide plates 11 on the same side are slidably connected to the inside of the rectangular moving frame 4 on the same side. The U-shaped guide plates 11 make the movement of the rectangular moving frame 4 more stable.

[0024] In this embodiment, two insertion holes 18 are formed on the surface of the insertion block 2. The outer sides of the first insertion plate 6 and the second insertion plate 17 are movably inserted into the corresponding insertion holes 18, making the insertion of the first insertion plate 6 and the second insertion plate 17 more stable.

[0025] In this embodiment, a nut 16 is threadedly connected to the outer side of the bolt 15. One side of the nut 16 is movably abutted against one side of the corresponding fixed block 14. A pull plate 12 is fixedly installed between the two rectangular moving frames 4, facilitating the movement of the rectangular moving frame 4 by pulling the pull plate 12.

[0026] In this embodiment, during use, by pulling the circular insertion rod 8, the circular insertion rod 8 is disengaged from the inside of the cold-drawn precision steel pipe body 1 and the rectangular moving frame 4. Then, the pull plate 12 is pulled upward, driving the two rectangular moving frames 4 to start moving upward along the rectangular moving groove 5 and the U-shaped guide plates 11. Further, the inclined plate 7 slidably connected inside the rectangular moving frame 4 is driven to move, further driving the first insertion plate 6 fixed thereto to move, thereby driving the first insertion plate 6 to disengage from the inside of the insertion block 2 and the cold-drawn precision steel pipe body 1, causing the first insertion plate 6 to lose the fixation of the insertion block 2 and the cold-drawn precision steel pipe body 1. Then, by twisting the bolt 15, the bolt 15 and the nut 16 start to disengage, and then the bolt 15 disengages from the inside of the fixed block 14, thus losing the restriction on the fixed block 14. Then, the two clamping rings 13 are pulled away from each other, driving the second insertion plates 17 fixed thereto to move away from each other, and further causing the second insertion plates 17 to disengage from the inside of the insertion block 2 and the cold-drawn precision steel pipe body 1, thus losing the fixation of the insertion block 2 and the cold-drawn precision steel pipe body 1. Therefore, when the cold-drawn precision steel pipe body 1 needs to be repaired or replaced, it is more convenient to disassemble the cold-drawn precision steel pipe body 1, facilitating the repair or replacement of the cold-drawn precision steel pipe body 1, and having stronger practicability.

[0027] The above has introduced in detail a cold-drawn precision steel pipe provided by the present utility model. Specific embodiments are applied in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A cold-drawn precision steel pipe, characterized in that, Including: A cold-drawn precision steel pipe body (1), two insertion blocks (2) are fixedly installed at the top of the cold-drawn precision steel pipe body (1), two insertion grooves (3) are opened at the bottom of the cold-drawn precision steel pipe body (1), the outer sides of the insertion blocks (2) are movably inserted into the corresponding insertion grooves (3), rectangular moving grooves (5) are opened on both sides of the cold-drawn precision steel pipe body (1), rectangular moving frames (4) are slidably connected to the inner sides of the two rectangular moving grooves (5), a circular insertion rod (8) is slidably inserted into the rectangular moving frame (4), a fixing ring (9) is fixedly installed on the outer side of the circular insertion rod (8), one end of the fixing ring (9) is fixedly connected to a return spring (10), one end of the return spring (10) is fixedly connected to the inner side wall of the rectangular moving frame (4), one end of the circular insertion rod (8) is movably inserted into the cold-drawn precision steel pipe body (1), a sloping plate (7) is slidably connected to the inner part of the rectangular moving frame (4), a first insertion plate (6) is fixedly installed at the bottom of the sloping plate (7), and the outer side of the first insertion plate (6) is movably inserted into the cold-drawn precision steel pipe body (1) and the insertion block (2).

2. The cold-drawn precision steel pipe according to claim 1, characterized in that, Two clamping rings (13) are movably abutted against the outer side of the cold-drawn precision steel pipe body (1), fixing blocks (14) are fixedly installed at the tops of the two clamping rings (13), a threaded hole is opened between the corresponding fixing blocks (14), a bolt (15) is threadedly connected in the threaded hole, second insertion plates (17) are fixedly installed on the inner sides of the two clamping rings (13), and the outer sides of the two second insertion plates (17) are movably inserted into the cold-drawn precision steel pipe body (1) and the insertion block (2).

3. A cold-drawn precision steel pipe according to claim 1, characterized in that, Four U-shaped guide plates (11) are fixedly installed on both sides of the cold-drawn precision steel pipe body (1), and the outer sides of the two U-shaped guide plates (11) on the same side are slidably connected to the inner part of the rectangular moving frame (4) on the same side.

4. A cold-drawn precision steel pipe according to claim 1, characterized in that, Two insertion holes (18) are opened on the surface of the insertion block (2), and the outer sides of the first insertion plate (6) and the second insertion plate (17) are movably inserted into the corresponding insertion holes (18).

5. A cold-drawn precision steel pipe according to claim 2, characterized in that, A nut (16) is threadedly connected to the outer side of the bolt (15), and one side of the nut (16) is movably abutted against one side of the corresponding fixing block (14).

6. A cold-drawn precision steel pipe according to claim 1, characterized in that, A pull plate (12) is fixedly installed between the two rectangular moving frames (4).

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