High-precision bright tube capable of preventing connection from falling off

Abstract

The utility model discloses a high-precision bright tube capable of preventing connection from falling off, which comprises a first tube body and a second tube body, and the adjacent ends of the first tube body and the second tube body are respectively provided with a connecting end face; the adjacent ends of the first pipe body and the second pipe body are fixedly connected with butt joint blocks; butt joint grooves corresponding to the butt joint blocks are formed in the pipe walls of the adjacent ends of the first pipe body and the second pipe body; the butt joint block on the first pipe body corresponds to the butt joint groove in the second pipe body, and the butt joint block on the second pipe body corresponds to the butt joint groove in the first pipe body. The connecting pipe has the advantages that the connecting end faces with the inclination angle being 45 degrees are arranged at the connecting ends of the first pipe body and the second pipe body and used for alignment connection, the butt joint blocks and the butt joint grooves are connected in a clamped mode to reinforce the connecting positions, and in addition, the connecting positions are further reinforced through sleeving of the outer lining shroud ring; the problem that the bright pipe is prone to falling off due to the fact that the stress effect of the pipe body connecting position is poor after welding can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bright tubes, in particular to a high-precision bright tube that prevents connection from falling off. Background Art

[0002] Bright tube is a kind of steel tube with excellent mechanical and process performance and can withstand high pressure. During the use of bright tube, it is often necessary to connect the two ends of the bright tube. However, the existing connection method for bright tube is mostly welding. After welding, the axial force effect is better, but the longitudinal force effect will be greatly reduced, which will cause the bright tube to fall off easily along the longitudinal direction. Utility Model Content

[0003] The utility model aims to provide a high-precision bright tube which can prevent connection from falling off, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: a high-precision bright tube that prevents connection from falling off, comprising a first tube body and a second tube body, wherein the first tube body and the second tube body are both provided with a connection end surface at one adjacent end;

[0005] One end adjacent to the first tube body and the second tube body is fixedly connected with a docking block;

[0006] A butt joint groove is formed on the tube wall of one adjacent end of the first tube body and the second tube body corresponding to the butt joint block;

[0007] The docking block on the first tube body corresponds to the docking groove on the second tube body, and the docking block on the second tube body corresponds to the docking groove on the first tube body;

[0008] An outer sleeve hoop is provided at the connection between the first tube body and the second tube body. The outer sleeve hoop is movably sleeved on the outer tube wall at the connection between the first tube body and the second tube body. A groove is penetrated through the outer wall of the outer sleeve hoop, and the groove is adapted to the docking block.

[0009] Preferably, the inclination angle of the connecting end surface is 45°.

[0010] Preferably, the connecting end surface on the first tube body and the connecting end surface on the second tube body are matched with each other.

[0011] Preferably, the docking block on the first tube body and the docking block on the second tube body are respectively arranged at the bottom and the top;

[0012] The docking groove on the first tube body and the docking groove on the second tube body are respectively arranged at the top and the bottom.

[0013] Preferably, wide-mouth grooves are provided on the inner walls on both sides of the groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a high-precision bright tube that prevents connection from falling off, has a simple structure and is easy to use. A connection end face with an inclined angle of 45° is provided at the connection end of the first tube body and the second tube body for alignment connection, and the connection is reinforced by the mutual clamping of the docking block and the docking groove. In addition, the connection is further reinforced by the sleeve connection of the outer lining hoop, which can effectively avoid the problem that the bright tube is easy to fall off due to poor stress effect at the connection of the tube body after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 It is a cross-sectional view of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the tank body in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the outer bushing hoop in the utility model.

[0020] In the figure: 1, first tube body; 2, second tube body; 3, connecting end face; 4, docking block; 5, docking groove; 6, outer bushing hoop; 7, groove; 8, wide-mouth groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a high-precision bright tube that prevents connection from falling off, comprising a first tube body 1 and a second tube body 2, wherein the adjacent ends of the first tube body 1 and the second tube body 2 are both provided with a connecting end surface 3;

[0023] The adjacent ends of the first tube body 1 and the second tube body 2 are both fixedly connected with a docking block 4;

[0024] A docking groove 5 is provided on the tube wall at one adjacent end of the first tube body 1 and the second tube body 2 corresponding to the docking block 4;

[0025] The docking block 4 on the first tube body 1 corresponds to the docking groove 5 on the second tube body 2, and the docking block 4 on the second tube body 2 corresponds to the docking groove 5 on the first tube body 1;

[0026] An outer sleeve hoop 6 is provided at the connection between the first tube body 1 and the second tube body 2. The outer sleeve hoop 6 is movably sleeved on the outer tube wall at the connection between the first tube body 1 and the second tube body 2. A groove 7 is penetrated through the outer wall of the outer sleeve hoop 6, and the groove 7 is adapted to the docking block 4.

[0027] The inclination angle of the connection end surface 3 is 45°, which can effectively ensure the integrity of the two connection end surfaces 3 when they are butt-jointed.

[0028] The connecting end surface 3 on the first tube body 1 and the connecting end surface 3 on the second tube body 2 are matched with each other, so that the connecting end surface 3 on one tube body is tilted downward, and the connecting end surface 3 on the other tube body is tilted upward.

[0029] The docking block 4 on the first tube body 1 and the docking block 4 on the second tube body 2 are respectively arranged at the bottom and the top;

[0030] The docking groove 5 on the first tube body 1 and the docking groove 5 on the second tube body 2 are respectively arranged at the top and the bottom.

[0031] Wide-mouth grooves 8 are provided on the inner walls on both sides of the groove 7 . The provision of the wide-mouth grooves 8 can effectively facilitate the alignment of the outer bushing hoop 6 and the docking block 4 .

[0032] Specifically, when the utility model is used, the first tube body 1 and the second tube body 2 are aligned and connected by the connecting end face 3, and the docking block 4 on the first tube body 1 is snapped into the docking groove 5 on the second tube body 2, and the docking block 4 on the second tube body 2 is snapped into the docking groove 5 on the first tube body 1 to realize the pre-connection of the bright tube. After the connection is completed, welding can be performed along the connection. After the welding is completed, the force effect in the lateral direction is better, and the longitudinal direction can be effectively reinforced due to the setting of the docking block 4 and the connecting end face 3. After the welding is completed, the connection is further reinforced by the sleeve connection of the outer lining hoop 6, which can effectively avoid the problem of the bright tube being easy to fall off due to the poor force effect of the tube body connection after welding.

[0033] 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 high-precision bright tube that prevents connection from falling off, characterized in that: It comprises a first tube body (1) and a second tube body (2), wherein adjacent ends of the first tube body (1) and the second tube body (2) are both provided with a connecting end surface (3); Adjacent ends of the first tube body (1) and the second tube body (2) are both fixedly connected with a docking block (4); A butt joint groove (5) is provided on the tube wall at one adjacent end of the first tube body (1) and the second tube body (2) corresponding to the butt joint block (4); The docking block (4) on the first tube body (1) corresponds to the docking groove (5) on the second tube body (2), and the docking block (4) on the second tube body (2) corresponds to the docking groove (5) on the first tube body (1); An outer sleeve hoop (6) is provided at the connection between the first tube body (1) and the second tube body (2); the outer sleeve hoop (6) is movably sleeved on the outer tube wall at the connection between the first tube body (1) and the second tube body (2); a groove (7) is penetrated through the outer wall of the outer sleeve hoop (6), and the groove (7) is adapted to be arranged with the docking block (4).

2. The high-precision bright tube for preventing connection from falling off according to claim 1, characterized in that: The inclination angle of the connecting end surface (3) is 45°.

3. The high-precision bright tube for preventing connection from falling off according to claim 1, characterized in that: The connecting end surface (3) on the first tube body (1) and the connecting end surface (3) on the second tube body (2) are arranged to match each other.

4. The high-precision bright tube for preventing connection from falling off according to claim 1, characterized in that: The docking block (4) on the first tube body (1) and the docking block (4) on the second tube body (2) are arranged at the bottom and the top respectively; The docking groove (5) on the first tube body (1) and the docking groove (5) on the second tube body (2) are arranged at the top and the bottom respectively.

5. The high-precision bright tube for preventing connection from falling off according to claim 1, characterized in that: Wide-mouth grooves (8) are provided on the inner walls on both sides of the groove (7).

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