An easy-to-install spliced ​​steel pipe

Abstract

The present invention relates to the technical field of steel pipes, and discloses an easy-to-install spliced ​​steel pipe, comprising a steel pipe body, wherein the outer arc surface of the steel pipe body is fixedly connected with a guide rail, the guide rail is provided with two groups, and the two groups of guide rails are symmetrically arranged with the center line of the steel pipe body as the symmetry axis, and the inner surface of the guide rail is provided with an adjustment mechanism, and the adjustment mechanism comprises an L-shaped rod, the L-shaped rod is slidably connected to the inner surface of the guide rail, the lower surface of the L-shaped rod is penetrated by a fixing rod and is slidably connected to the fixing rod, and the lower surface of the fixing rod is fixedly connected with a U-shaped plate. The easy-to-install spliced ​​steel pipe can facilitate the sliding of the L-shaped rod in the guide rail by using the arrangement of the U-shaped plate, pulley, bidirectional screw rod, slider and bracket, and at the same time will not affect the splicing of multiple groups of steel pipes. When welding the steel pipes, the height of the steel pipe can be adjusted, which makes it more convenient for workers to weld, and at the same time, after the splicing of multiple groups of steel pipes is completed, it is convenient to carry the combined steel pipes.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipes, in particular to an easy-to-install spliced ​​steel pipe. Background Art

[0002] At present, steel with a hollow section whose length is much larger than its diameter or circumference is divided into circular, square, rectangular and special-shaped steel pipes according to the cross-sectional shape; divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes according to the material; divided into steel pipes for conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc. according to the use; divided into seamless steel pipes and welded steel pipes according to the production process, among which seamless steel pipes are divided into hot-rolled and cold-rolled (drawn), and welded steel pipes are divided into straight seam welded steel pipes and spiral seam welded steel pipes.

[0003] Chinese patent publication number CN 219754998 U discloses "a spliced ​​steel pipe installation structure, comprising a first steel pipe and a second steel pipe, the interior of the first steel pipe is plugged into and matched with the interior of the second steel pipe through four splicing components, the splicing component comprises at least a mounting plate and a fixing plate, an opening on one side of the mounting plate is snap-fitted with an elastic sealing plate through a stabilizing component, a movable plate is provided on the side of the elastic sealing plate away from the stabilizing component, in the spliced ​​steel pipe installation structure, the first steel pipe and the second steel pipe are placed opposite to each other, the stabilizing component is disconnected by pushing the component, and at the same time, the elastic sealing plate is moved following the movable plate, and the snap-fitting component is snap-fitted, so that the work of splicing the two steel pipes is not only simple to operate, but also saves time and effort, and does not increase the structure of the outer surface of the steel pipe, reduces obstacles that affect the use of the steel pipe, and improves the practicality of the steel pipe splicing structure".

[0004] During the conception process, the applicant searched a large number of patent documents on the patent network. For example, China Patent Publication No. CN219754998 U discloses "a spliced ​​steel pipe installation structure". However, since most steel pipes lack a supporting mechanism, when welding multiple groups of steel pipes, workers need to bend over for a long time to weld. This will cause the workers to suffer serious damage to their waists after working for a long time, which will affect their physical and mental health. At the same time, after the welding of multiple groups of steel pipes is completed, due to the lack of a supporting mechanism, the steel pipe will also have a downward force at one end due to gravity due to the center of gravity when moving, resulting in the problem of easy breakage of the spliced ​​steel pipe. Therefore, an easy-to-install spliced ​​steel pipe is proposed to solve the above-mentioned problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides an easy-to-install spliced ​​steel pipe, which solves the problem of inconvenience in splicing and carrying the steel pipes due to the lack of support and height adjustment functions after splicing.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an easy-to-install spliced ​​steel pipe, comprising a steel pipe body, the outer arc surface of the steel pipe body is fixedly connected with a guide rail, the guide rail is provided with two groups, and the two groups of guide rails are symmetrically arranged with the center line of the steel pipe body as the symmetry axis, the inner surface of the guide rail is provided with an adjustment mechanism, the adjustment mechanism comprises an L-shaped rod, the L-shaped rod is slidably connected to the inner surface of the guide rail, the lower surface of the L-shaped rod is penetrated by a fixing rod and slidably connected to the fixing rod, the lower surface of the fixing rod is fixedly connected to a U-shaped plate, the inner surface of the U-shaped plate is provided with a sliding groove, the inner surface of the sliding groove is slidably connected with a slider, the inner surface of the U-shaped plate is penetrated by a bidirectional screw rod, the bidirectional screw rod penetrates the slider and is threadedly connected to the slider, the slider is hinged to one end of the bracket one, and the L-shaped rod is hinged to the other end of the bracket one.

[0009] Preferably, the right surface of the U-shaped plate is rotatably connected to a rotating rod, the outer arc surface of the rotating rod is fixedly connected to a pulley, and two groups of pulleys are provided and are symmetrically arranged with the center line of the U-shaped plate as the axis of symmetry.

[0010] Preferably, the outer arc surface of the rotating rod is provided with triangular grooves in a circular array, the inner surface of the triangular groove is slidably connected with an elastic triangular plate, and the elastic triangular plate is slidably connected to the right surface of the U-shaped plate.

[0011] Preferably, the L-shaped rods are provided in two groups and are symmetrically arranged with the center line of the steel pipe body as the axis of symmetry. A limiting mechanism is provided on the inner surface of the left L-shaped rod, and the limiting mechanism includes a latch. The lower surface of the latch passes through the limiting rod and is slidably connected to the limiting rod. The limiting rod is fixedly connected to the inner surface of the left L-shaped rod. The inner surface of the guide rail on the left is provided with slots in a linear array, and the inner surface of the slots is slidably connected to the latch.

[0012] Preferably, the left surface of the left L-shaped rod passes through an elastic movable rod and is slidably connected to the elastic movable rod, the right surface of the elastic movable rod is hinged to one end of the second bracket, and the outer arc surface of the pin is hinged to the other end of the second bracket.

[0013] Preferably, the left surface of the L-shaped rod on the left is slidably connected with an anti-accidental touch block, the anti-accidental touch block is hinged to one end of the bracket three, the left surface of the elastic movable rod is penetrated by a connecting rod and is slidably connected to the connecting rod, the connecting rod is hinged to the other end of the bracket three, and the left surface of the L-shaped rod on the left is fixedly connected with a positioning rod, the positioning rod penetrates the anti-accidental touch block and is slidably connected to the anti-accidental touch block.

[0014] Preferably, a groove is provided on the front surface of the L-shaped rod on the right side, and a supporting mechanism is provided on the inner surface of the groove, wherein the supporting mechanism comprises an annular plate, wherein the annular plate is rotatably connected to the inner surface of the groove, and the right end of the annular plate is fixedly connected with a tooth bud in a circular array, and a rack is penetrated through the right surface of the L-shaped rod on the right side and is slidably connected with the rack, and the tooth spacing of the rack and the tooth bud are meshed.

[0015] Preferably, an auxiliary rod passes through the upper surface of the L-shaped rod on the right side and is slidably connected to the auxiliary rod, the auxiliary rod is hinged to one end of bracket four, the rack is hinged to the other end of bracket four, and an elastic member is provided on the upper surface of the L-shaped rod, one end of the elastic member is fixedly connected to the inner surface of the auxiliary rod, and the other end of the elastic member is fixedly connected to the upper surface of the L-shaped rod on the right side.

[0016] Preferably, an elastic plug rod penetrates the right surface of the right L-shaped rod and is slidably connected to the elastic plug rod, and an upper surface of the elastic plug rod penetrates the rack and is slidably connected to the rack.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides an easy-to-install spliced ​​steel pipe, which has the following beneficial effects:

[0019] 1. This easy-to-install spliced ​​steel pipe utilizes the settings of a U-shaped plate, a pulley, a bidirectional screw rod, a slider and a bracket to facilitate the sliding of the L-shaped rod in the guide rail without affecting the splicing of multiple groups of steel pipes. When welding steel pipes, the height of the steel pipes can be adjusted, making it more convenient for workers to weld. At the same time, after the splicing of multiple groups of steel pipes is completed, it is convenient to carry the combined steel pipes.

[0020] 2. This easy-to-install spliced ​​steel pipe utilizes the arrangement of a latch, a slot, an elastic movable rod and a bracket. After the L-shaped rod slides in the guide rail, the L-shaped rod can be limited by the latch, making the L-shaped rod more stable in the guide rail.

[0021] 3. This easy-to-install spliced ​​steel pipe utilizes the settings of annular plates, tooth buds and racks. By moving the racks left and right, the annular plates can be controlled to rotate. When welding multiple groups of steel pipes, the welding of the joints of the steel pipes will not be affected. At the same time, after the steel pipes are completed, the welding joints can be protected by the annular plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an easy-to-install spliced ​​steel pipe proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of an adjustment mechanism for an easy-to-install spliced ​​steel pipe proposed by the present invention;

[0024] Figure 3 The invention provides an easy-to-install spliced ​​steel pipe Figure 2 A schematic diagram of the structure enlargement of part A;

[0025] Figure 4 The invention provides an easy-to-install spliced ​​steel pipe Figure 2 A schematic diagram of the structure of part B in the middle is enlarged;

[0026] Figure 5 The invention provides an easy-to-install spliced ​​steel pipe Figure 1 A schematic diagram of the structure enlargement of part A;

[0027] Figure 6 This is a schematic cross-sectional structure diagram of a U-shaped plate for easily installing a spliced ​​steel pipe proposed by the present invention;

[0028] Figure 7 The invention provides an easy-to-install spliced ​​steel pipe Figure 6 Schematic diagram of the enlarged structure of part D.

[0029] In the figure: 1. steel pipe body; 2. guide rail; 3. adjustment mechanism; 31. L-shaped rod; 32. fixing rod; 33. U-shaped plate; 34. slide groove; 35. slider; 36. bidirectional screw rod; 37. bracket one; 38. rotating rod; 39. pulley; 310. triangular groove; 311. elastic triangular plate; 4. limiting mechanism; 41. latch; 42. limiting rod; 43. slot; 44. elastic movable rod; 45. bracket two; 46. anti-mistaken touch block; 47. bracket three; 48. positioning rod; 49. connecting rod; 5. groove; 6. supporting mechanism; 61. annular plate; 62. tooth bud; 63. rack; 64. auxiliary rod; 65. bracket four; 66. elastic member; 67. elastic plug rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1－ Figure 7, an easy-to-install spliced ​​steel pipe, comprising a steel pipe body 1, a guide rail 2 is fixedly connected to the outer arc surface of the steel pipe body 1, two groups of guide rails 2 are provided, and the two groups of guide rails 2 are symmetrically arranged with the center line of the steel pipe body 1 as the symmetry axis, and an adjustment mechanism 3 is provided on the inner surface of the guide rail 2, and the adjustment mechanism 3 comprises an L-shaped rod 31, and the L-shaped rod 31 is slidably connected to the inner surface of the guide rail 2, and a fixing rod 32 is penetrated through the lower surface of the L-shaped rod 31 and is slidably connected to the fixing rod 32, and a U-shaped plate 33 is fixedly connected to the lower surface of the fixing rod 32, and a slide groove 34 is provided on the inner surface of the U-shaped plate 33, and a slider 35 is slidably connected to the inner surface of the slide groove 34, and the slider 35 is limited by the slide groove 34, so as to ensure that the slider 35 can stably slide in the slide groove 34, and the U-shaped A bidirectional screw rod 36 is passed through the inner surface of the plate 33, and the bidirectional screw rod 36 passes through the slider 35 and is threadedly connected to the slider 35. The slider 35 is hinged to one end of a bracket 37, and the L-shaped rod 31 is hinged to the other end of the bracket 37. The right surface of the U-shaped plate 33 is rotatably connected to a rotating rod 38, and the outer arc surface of the rotating rod 38 is fixedly connected to a pulley 39. The pulley 39 is provided with two groups and is symmetrically arranged with the center line of the U-shaped plate 33 as the symmetry axis. The outer arc surface of the rotating rod 38 is provided with triangular grooves 310 in a circular array, and the inner surface of the triangular groove 310 is slidably connected to an elastic triangular plate 311. The elastic triangular plate 311 is composed of a spring and a triangular plate. The spring enables the triangular plate to be compressed by the spring after being subjected to force, and to return to the original position by the elastic force of the spring. Return to the original position, cooperate with the triangular groove 310, when the rotating rod 38 rotates through the pulley 39, the triangular groove 310 will squeeze the inclined surface of the triangular plate, so that the triangular plate moves upward, and compresses the spring. When the pulley 39 does not move through the friction of the ground, the triangular plate is stuck in the triangular groove 310 through the spring to limit the pulley 39. When the pulley 39 rotates through the friction of the ground, the triangular plate will limit the speed of the pulley 39. The elastic triangular plate 311 is slidably connected to the right surface of the U-shaped plate 33. The L-shaped rod 31 is provided with two groups and is symmetrically arranged with the center line of the steel pipe body 1 as the symmetry axis. The inner surface of the left L-shaped rod 31 is provided with a limiting mechanism 4, and the limiting mechanism 4 includes a latch 41. The lower surface of the latch 41 passes through the limiting mechanism The rod 42 is slidably connected to the limit rod 42, the limit rod 42 is fixedly connected to the inner surface of the left L-shaped rod 31, the inner surface of the left guide rail 2 is provided with a slot 43 in a linear array, the inner surface of the slot 43 is slidably connected to the latch 41, and the L-shaped rod 31 can be limited when the L-shaped rod 31 slides in the guide rail 2 through the mutual cooperation of the slot 43 and the latch 41. The left surface of the left L-shaped rod 31 is penetrated by an elastic movable rod 44 and is slidably connected to the elastic movable rod 44. The right surface of the elastic movable rod 44 is hinged to one end of the bracket 2 45, and the outer arc surface of the latch 41 is hinged to the other end of the bracket 2 45. The left surface of the left L-shaped rod 31 is slidably connected to an anti-mistaken touch block 46, and the anti-mistaken touch block 46 is hinged to one end of the bracket 3 47.The left surface of the elastic movable rod 44 is penetrated by a connecting rod 49 and is slidably connected to the connecting rod 49. The connecting rod 49 is hinged to the other end of the bracket 3 47. The left surface of the left L-shaped rod 31 is fixedly connected to a positioning rod 48. The positioning rod 48 penetrates the anti-mistaken touch block 46 and is slidably connected to the anti-mistaken touch block 46. The front surface of the right L-shaped rod 31 is provided with a groove 5. The inner surface of the groove 5 is provided with a supporting mechanism 6. The supporting mechanism 6 includes an annular plate 61. The annular plate 61 is rotatably connected to the inner surface of the groove 5. Through the groove 5, so that the whole of the annular plate 61 will surround the steel pipe, and at the same time, a part of the protrusion will be longer than a part of the steel pipe. Through this arrangement, after the two groups of steel pipes are welded, the welding parts of the two groups of welded steel pipes can be surrounded by the annular plate 61 to protect the welding parts. The right end of the annular plate 61 is fixedly connected with a tooth bud 62 in a circumferential array. The right surface of the right L-shaped rod 31 is penetrated by a rack 63 and is slidably connected to the rack 63. The rack 63 is meshed with the tooth spacing of the tooth bud 62. The upper surface of the right L-shaped rod 31 is penetrated by an auxiliary rod 64 and is slidably connected to the auxiliary rod 64, the auxiliary rod 64 is hinged to one end of the bracket four 65, the rack 63 is hinged to the other end of the bracket four 65, the upper surface of the L-shaped rod 31 is provided with an elastic member 66, the elastic member 66 is a spring, one end of the elastic member 66 is fixedly connected to the inner surface of the auxiliary rod 64, the other end of the elastic member 66 is fixedly connected to the upper surface of the right L-shaped rod 31, the right surface of the right L-shaped rod 31 is penetrated by an elastic plug rod 67 and is slidably connected to the elastic plug rod 67, and the upper surface of the elastic plug rod 67 is penetrated The rack 63 is slidably connected with the rack 63. By using the U-shaped plate 33, the pulley 39, the bidirectional screw rod 36, the slider 35, the latch 41, the slot 43, the elastic movable rod 44, the bracket 2 45, the annular plate 61, the tooth bud 62 and the rack 63, the height of the steel pipe can be adjusted when welding the steel pipe, making it more convenient for workers to weld. At the same time, after multiple groups of steel pipes are spliced, it is convenient to carry the combined steel pipes, making the L-shaped rod 31 more stable in the guide rail 2, and the welding position can be protected by the annular plate 61.

[0032] Working principle: when two groups of steel pipes need to be welded, the elastic rod 67 is pulled downward to disengage the elastic rod 67 from the rack 63. The elastic force of the elastic member 66 will pull the auxiliary rod 64 downward, cooperate with the bracket 4 65, and drive the rack 63 to move to the right. After the rack 63 moves to the right, it cooperates with the setting of the rack 63 and the tooth bud 62 to drive the two groups of annular plates 61 to rotate outward at the same time, reduce the contact between the annular plate 61 and the outer arc surface of the steel pipe, and then pull the connecting rod 49 to the left. The connecting rod 49 pulls the anti-mistaken-touch block 46 upward through the bracket 3 47, so that the anti-mistaken-touch block 46 is separated from the positioning rod 48, and then the connecting rod 49 is continuously pulled to move to the left, so that the connecting rod 49 drives the elastic movable rod 44 to move to the left, and the elastic movable rod 44 pulls the latch 41 through the bracket 2 45, so that the latch 41 is moved out of the slot 43, and then the U-shaped plate 33 is moved, and the U-shaped plate 33 moves toward the center of the steel pipe. When moving, the pulley 39 rubs against the ground and rotates, and the pulley 39 rotates. 9 drives the rotating rod 38 to rotate, and the rotating rod 38 drives the triangular groove 310 to rotate, squeezing the inclined surface of the elastic triangular plate 311, so that the elastic triangular plate 311 moves upward and separates from the inner surface of the triangular groove 310. When the U-shaped plate 33 moves to the center of the steel pipe, the bidirectional screw rod 36 is rotated, and the bidirectional screw rod 36 drives the slider 35 to separate from the two sides of the U-shaped plate 33, and cooperates with the bracket 37 to drive the two groups of L-shaped rods 31 to move upward at the same time. The two groups of L-shaped rods 31 cooperate with the guide rail 2 to drive the steel pipe Move upward to ensure that workers do not need to bend down when welding steel pipes. After the welding of multiple groups of steel pipes is completed, the redundant L-shaped rods 31 are removed from the front or rear side of the steel pipe (after pushing the U-shaped plate 33 and moving it out of the guide rail 2). The two groups of U-shaped plates 33 are fixed on both sides of the combined steel pipe by the pins 41. The other U-shaped plates 33 are moved to the welding points of the multiple groups of steel pipes. At the same time, the rack 63 is pushed to the left, and the rack 63 drives the annular plate 61 to surround the welding points of the combined steel pipes to support the welding points of the steel pipes.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. An easy-to-install spliced ​​steel pipe, comprising a steel pipe body (1), characterized in that: The outer arc surface of the steel pipe body (1) is fixedly connected with a guide rail (2), and the guide rail (2) is provided with two groups. The two groups of guide rails (2) are symmetrically arranged with the center line of the steel pipe body (1) as the symmetry axis. The inner surface of the guide rail (2) is provided with an adjustment mechanism (3), and the adjustment mechanism (3) includes an L-shaped rod (31), and the L-shaped rod (31) is slidably connected to the inner surface of the guide rail (2). The lower surface of the L-shaped rod (31) is penetrated by a fixed rod (32) and is slidably connected to the fixed rod (32). A U-shaped plate (33) is fixedly connected to the lower surface of the fixed rod (32), a slide groove (34) is provided on the inner surface of the U-shaped plate (33), a slider (35) is slidably connected to the inner surface of the slide groove (34), a bidirectional screw rod (36) passes through the inner surface of the U-shaped plate (33), the bidirectional screw rod (36) passes through the slider (35) and is threadedly connected to the slider (35), the slider (35) is hinged to one end of the bracket (37), and the L-shaped rod (31) is hinged to the other end of the bracket (37).

2. The easy-to-install spliced ​​steel pipe according to claim 1, characterized in that: The right surface of the U-shaped plate (33) is rotatably connected to a rotating rod (38), and the outer arc surface of the rotating rod (38) is fixedly connected to a pulley (39). Two groups of pulleys (39) are provided and are symmetrically arranged with the center line of the U-shaped plate (33) as the symmetry axis.

3. The easy-to-install spliced ​​steel pipe according to claim 2, characterized in that: The outer arc surface of the rotating rod (38) is provided with triangular grooves (310) in a circular array, the inner surface of the triangular groove (310) is slidably connected with an elastic triangular plate (311), and the elastic triangular plate (311) is slidably connected to the right surface of the U-shaped plate (33).

4. The easy-to-install spliced ​​steel pipe according to claim 3, characterized in that: The L-shaped rods (31) are provided in two groups and are symmetrically arranged with the center line of the steel pipe body (1) as the symmetry axis. A limiting mechanism (4) is provided on the inner surface of the left L-shaped rod (31). The limiting mechanism (4) comprises a latch (41). The lower surface of the latch (41) passes through a limiting rod (42) and is slidably connected to the limiting rod (42). The limiting rod (42) is fixedly connected to the inner surface of the left L-shaped rod (31). The inner surface of the left guide rail (2) is provided with a slot (43) in a linear array. The inner surface of the slot (43) is slidably connected to the latch (41).

5. The easy-to-install spliced ​​steel pipe according to claim 4, characterized in that: The left surface of the L-shaped rod (31) on the left side is penetrated by an elastic movable rod (44) and is slidably connected to the elastic movable rod (44); the right surface of the elastic movable rod (44) is hinged to one end of the second bracket (45); and the outer arc surface of the latch (41) is hinged to the other end of the second bracket (45).

6. The easy-to-install spliced ​​steel pipe according to claim 5, characterized in that: The left surface of the L-shaped rod (31) on the left side is slidably connected to an anti-mistaken touch block (46), and the anti-mistaken touch block (46) is hinged to one end of the bracket three (47). The left surface of the elastic movable rod (44) is penetrated by a connecting rod (49) and is slidably connected to the connecting rod (49), and the connecting rod (49) is hinged to the other end of the bracket three (47). The left surface of the L-shaped rod (31) on the left side is fixedly connected to a positioning rod (48), and the positioning rod (48) penetrates the anti-mistaken touch block (46) and is slidably connected to the anti-mistaken touch block (46).

7. The easy-to-install spliced ​​steel pipe according to claim 6, characterized in that: A groove (5) is provided on the front surface of the L-shaped rod (31) on the right side, and a support mechanism (6) is provided on the inner surface of the groove (5). The support mechanism (6) comprises an annular plate (61), and the annular plate (61) is rotatably connected to the inner surface of the groove (5). The right end of the annular plate (61) is fixedly connected to a tooth bud (62) in a circular array. A rack (63) penetrates the right surface of the L-shaped rod (31) on the right side and is slidably connected to the rack (63). The rack (63) meshes with the tooth spacing of the tooth bud (62).

8. The easy-to-install spliced ​​steel pipe according to claim 7, characterized in that: An auxiliary rod (64) passes through the upper surface of the right L-shaped rod (31) and is slidably connected to the auxiliary rod (64); the auxiliary rod (64) is hinged to one end of the bracket four (65); the rack (63) is hinged to the other end of the bracket four (65); an elastic member (66) is provided on the upper surface of the L-shaped rod (31); one end of the elastic member (66) is fixedly connected to the inner surface of the auxiliary rod (64); and the other end of the elastic member (66) is fixedly connected to the upper surface of the right L-shaped rod (31).

9. The easy-to-install spliced ​​steel pipe according to claim 8, characterized in that: An elastic insertion rod (67) penetrates the right surface of the right L-shaped rod (31) and is slidably connected to the elastic insertion rod (67), and an upper surface of the elastic insertion rod (67) penetrates the rack (63) and is slidably connected to the rack (63).

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