CN112815156B

CN112815156B - Telescopic steel pipe

Info

Publication number: CN112815156B
Application number: CN202110055279.3A
Authority: CN
Inventors: 李自明; 华建中; 李德根
Original assignee: Wuxi Shunyi Pipe Industry Co ltd
Current assignee: Wuxi Shunyi Pipe Industry Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2022-06-24
Anticipated expiration: 2041-01-15
Also published as: CN112815156A

Abstract

The utility model relates to a steel pipe especially relates to a telescopic steel pipe, and it includes first steel pipe, second steel pipe, and first steel pipe and the coaxial setting of second steel pipe, first steel pipe slide to be connected in the second steel pipe, and the outer periphery wall of first steel pipe is laminated in the inner wall of second steel pipe, is connected with the card strip that is used for the first steel pipe of joint on the second steel pipe. The positioning ring is connected with a abutting component, one end face of the clamping strip is an abutting face, when the clamping strip is inserted into the clamping groove, the abutting face abuts against the inner wall of the accommodating groove, and the abutting component is used for abutting one side of the limiting rod, which is far away from the abutting face. This application has and is convenient for stretch out and draw back the steel pipe to reduce the effect in the shared space of steel pipe.

Description

Telescopic steel pipe

Technical Field

The application relates to a steel pipe, especially relates to a telescopic steel pipe.

Background

A steel pipe is a steel material having a hollow cross section, the length of which is much greater than the diameter or circumference. The steel pipe is divided into round, square, rectangular and special-shaped steel pipes according to the cross section shape, and is divided into a carbon structural steel pipe, a low-alloy structural steel pipe, an alloy steel pipe and a composite steel pipe according to the material quality.

At present, chinese patent publication No. CN103322335A discloses a large-scale steel pipe, including cylindric straight tube, the straight tube has opposite first port and the second port that sets up, first port and second port are used for supplying the liquid circulation, straight section of thick bamboo still has the outer circumferential wall and the inner wall that are located between first port and the second port, large-scale steel pipe has the first ear portion that is close to first port, and the second ear portion that is close to the second port, first ear portion and second ear portion set up on the outer circumferential wall of straight section of thick bamboo and extend outwards.

With respect to the related art in the above, the inventors consider that: when the length of the large steel pipe is too long, the large steel pipe occupies a large space and is inconvenient to store.

Disclosure of Invention

In order to reduce the size in the space that the steel pipe occupies, this application provides a telescopic steel pipe.

The application provides a telescopic steel pipe adopts following technical scheme:

the utility model provides a telescopic steel pipe, includes first steel pipe, second steel pipe, and first steel pipe and the coaxial setting of second steel pipe, first steel pipe slide to be connected in the second steel pipe, and the outer periphery wall laminating of first steel pipe is in the inner wall of second steel pipe, is connected with the card strip that is used for the first steel pipe of joint on the second steel pipe.

Through adopting above-mentioned technical scheme, when depositing first steel pipe and second steel pipe, with first steel pipe slip to in the second steel pipe, when using first steel pipe and second steel pipe, pull out first steel pipe from in the second steel pipe, then utilize the card strip to fix first steel pipe and second steel pipe. Above-mentioned technical scheme is through mutually supporting of first steel pipe, second steel pipe, card strip, is convenient for shrink first steel pipe to the second steel pipe in on the one hand, has reached the effect that reduces parking space, and on the other hand is convenient for stretch out the after-fixing with first steel pipe from the second steel pipe, uses.

Optionally, the outer circumferential wall of the first steel pipe is connected with a sliding plate, the long side edge of the sliding plate is parallel to the axis of the first steel pipe, and the inner wall of the second steel pipe is provided with a sliding groove for the sliding plate to slide.

Through adopting above-mentioned technical scheme, the cooperation of sliding of slide and spout has the effect of direction to first steel pipe, stability when having improved first steel pipe and sliding.

Optionally, the sliding plate is an arc-shaped plate, and the sliding plate is attached to the outer circumferential wall of the first steel pipe.

Through adopting above-mentioned technical scheme, the slide is the arc, has improved the area of contact of slide with first steel pipe, has improved the steadiness that slide and first steel pipe are connected.

Optionally, the side that the slide deviates from first steel pipe is opened there is the draw-in groove, and the draw-in groove is the arc wall, and the centre of a circle of its pitch arc is located the axis of first steel pipe, and the card strip rotates to be connected on the second steel pipe, and the cooperation is pegged graft with the draw-in groove to the card strip.

Through adopting above-mentioned technical scheme, the card strip is pegged graft in the draw-in groove, has realized the relatively fixed of first steel pipe and second steel pipe.

Optionally, the axis symmetry of slide about first steel pipe is equipped with two, and the card strip is equipped with two and sets up with the slide one-to-one about the axis symmetry of second steel pipe.

Through adopting above-mentioned technical scheme, two slides have improved the stability when first steel pipe slides, and two card strips have improved first steel pipe and second steel pipe relatively fixed's steadiness.

Optionally, a holding groove for sliding the clamping strip is formed in the second steel pipe, the holding groove is communicated with the sliding groove, a positioning ring is fixedly sleeved on the second steel pipe, a limiting groove is formed in one end face of the positioning ring along the circumferential direction of the positioning ring, the limiting groove penetrates through the outer circumferential wall of the second steel pipe, and a limiting rod which slides in the limiting groove is connected to the clamping strip.

Through adopting above-mentioned technical scheme, the gag lever post slides at the spacing inslot, has limited effect to the card strip, has reduced the possibility that the card strip breaks away from the second steel pipe.

Optionally, the positioning ring is connected with a abutting assembly, one end face of the clamping strip is an abutting face, when the clamping strip is inserted into the clamping groove, the abutting face abuts against the inner wall of the accommodating groove, and the abutting assembly is used for abutting one side of the limiting rod, which is far away from the abutting face.

Through adopting above-mentioned technical scheme, when needs lock first steel pipe and second steel pipe, remove first steel pipe, make the draw-in groove communicate in the holding tank, then rotate the gag lever post, the gag lever post drives the card strip and removes and make the card strip peg graft in the draw-in groove, the tight face of supporting of card strip this moment contradicts in the inner wall of holding tank, utilize to support tight subassembly and support tightly in the gag lever post keep away from one side of the tight face of supporting of card strip, make the card strip be in the lock-out condition, the possibility that the card strip breaks away from the draw-in groove has been reduced, thereby first steel pipe and second steel pipe relatively fixed's steadiness has been improved.

It is optional, support tight subassembly and include the locking piece, the spacing groove is opened on the inside wall of notch has the mounting groove, the locking piece slides in the mounting groove, it has the elastic component that is used for driving the locking piece to remove towards the spacing groove to fill in the mounting groove, be connected with the push rod on the locking piece, it has the guide way that supplies the push rod to slide to open on the holding ring, the holding ring is worn out to the one end of push rod, when the card strip is pegged graft in the draw-in groove, one side that the face of supporting was kept away from to the gag lever post is contradicted in the locking piece.

By adopting the technical scheme, when the clamping strip needs to be abutted tightly, the elastic piece applies elastic force to the locking block, so that the locking block moves towards the limiting groove, the locking block drives the push rod to slide, when the push rod slides to one end of the guide groove, the locking block is fixed, and at the moment, the locking block abuts against the clamping strip, so that the clamping strip is locked; when the tight state of locking piece to blocking strip is relieved to needs, promote the push rod, the push rod drives the direction of locking piece towards the mounting groove and slides, and after the locking piece breaks away from the holding tank, can relieve the locking state of blocking strip.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the mutual matching of the first steel pipe, the second steel pipe and the clamping strip, on one hand, the first steel pipe is convenient to shrink into the second steel pipe, so that the effect of reducing the storage space is achieved, and on the other hand, the first steel pipe is convenient to extend out of the second steel pipe and then is fixed for use;

2. the limiting rod slides in the limiting groove, so that the clamping strip is limited, and the possibility that the clamping strip is separated from the second steel pipe is reduced;

3. the clamping strip is provided with a clamping component, the clamping strip is tightly abutted against the inner wall of the accommodating groove, and the clamping component is tightly abutted against one side of the limiting rod, which is far away from the clamping strip, of the abutting surface, so that the clamping strip is locked.

Drawings

Fig. 1 is a schematic structural view of a telescopic steel pipe according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a clip strip and a limiting rod according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a card slot according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a fastening assembly according to an embodiment of the present application.

Description of reference numerals: 1. a first steel pipe; 2. a second steel pipe; 21. a chute; 22. accommodating grooves; 3. a slide plate; 31. a card slot; 4. clamping the strip; 41. a pressing surface; 5. a positioning ring; 51. a limiting groove; 52. mounting grooves; 53. a guide groove; 6. a limiting rod; 7. a rotating ring; 8. a propping component; 81. a locking block; 82. an elastic member; 83. a push rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a telescopic steel pipe. Referring to fig. 1, the telescopic steel pipe includes a first steel pipe 1 and a second steel pipe 2. The first steel pipe 1 and the second steel pipe 2 are coaxially arranged, the outer circumferential wall of the first steel pipe 1 is attached to the inner circumferential wall of the second steel pipe 2, and the first steel pipe 1 is connected with the second steel pipe 2 in a sliding mode.

Referring to fig. 1 and 2, the outer circumferential wall of the first steel pipe 1 is fixedly connected with the sliding plate 3, the sliding plate 3 is an arc-shaped plate, and the side surface of the sliding plate 3 close to the first steel pipe 1 is attached to the outer circumferential wall of the first steel pipe 1, so that the contact area between the sliding plate 3 and the first steel pipe 1 is increased, and the connection stability between the sliding plate 3 and the first steel pipe 1 is improved. The long side of the slide 3 is parallel to the axis of the first steel tube 1. In order to improve the stability when the first steel pipe 1 slides, two sliding plates 3 are symmetrically arranged about the axis of the first steel pipe 1, two sliding grooves 21 are symmetrically arranged about the axis of the second steel pipe 2, and the sliding plates 3 correspond to the sliding grooves 21 one by one.

Referring to fig. 3, a clamping groove 31 is formed in the side surface of the sliding plate 3 departing from the first steel pipe 1, the clamping groove 31 is located at one end of the sliding plate 3 in the length direction, the clamping groove 31 is an arc-shaped groove, and the center of the arc is located on the axis of the first steel pipe 1.

Referring to fig. 2 and 3, the second steel pipe 2 has a receiving groove 22 formed in the outer circumferential wall thereof in the circumferential direction, and the receiving groove 22 penetrates into the second steel pipe 2. When the first steel pipe 1 is contracted in the second steel pipe 2, the accommodating groove 22 is located at one end of the second steel pipe 2 far away from the clamping groove 31.

The holding tank 22 is equipped with two about the axis symmetry of second steel pipe 2, and holding tank 22 and spout 21 one-to-one set up, and holding tank 22 is linked together with spout 21. Holding tank 22 internal slipping has card strip 4, and card strip 4 is the arc setting, its pitch arc and holding tank 22's pitch arc collineation. The card strip 4 is matched with the card slot 31 in an inserting way.

Referring to fig. 2 and 4, the end portion of the second steel pipe 2 close to the clamping strip 4 is fixedly sleeved with a positioning ring 5, one end surface of the positioning ring 5 is provided with a limiting groove 51, and the limiting groove 51 penetrates through the outer circumferential wall of the second steel pipe 2.

Referring to fig. 1, when the first steel pipe 1 is protruded from the second steel pipe 2, the notch of the stopper groove 51 is disposed toward the first steel pipe 1.

Referring to fig. 2 and 4, a limiting rod 6 is fixedly connected to one side of the clamping strip 4 facing the outside of the second steel pipe 2, and the limiting rod 6 is parallel to the axis of the second steel pipe 2. The limiting rod 6 slides in the limiting groove 51, so that the possibility that the clamping strip 4 is separated from the accommodating groove 22 is reduced. In order to facilitate the rotation of the stopper rod 6, one end of the stopper rod 6 penetrates through the notch of the stopper groove 51.

Referring to fig. 1, in order to facilitate the simultaneous rotation of the two limiting rods 6, a rotating ring 7 is sleeved on the first steel pipe 1, and the rotating ring 7 is respectively and fixedly connected to the two limiting rods 6. In addition, the inner circumferential wall of the rotating ring 7 is attached to the slide plate 3, and the stability of the rotating ring 7 during rotation is improved.

When needs lock first steel pipe 1 and second steel pipe 2, remove first steel pipe 1 for draw-in groove 31 communicates in holding tank 22, then orders about swivel becket 7 and rotates, and swivel becket 7 drives two gag lever posts 6 and rotates simultaneously, and gag lever post 6 drives card strip 4 and removes, makes card strip 4 peg graft in draw-in groove 31. One end surface of the clamping strip 4 is a pressing surface 41, and at this time, the pressing surface 41 presses against the inner wall of the accommodating groove 22.

Referring to fig. 2 and 4, the positioning ring 5 is connected with a tightening component 8, and the tightening component 8 is used for tightening one side of the limiting rod 6 away from the tightening surface 41. The abutting assembly 8 comprises a locking block 81, a mounting groove 52 is formed in the inner side wall, facing the notch, of the limiting groove 51, an elastic part 82 is filled in the mounting groove 52, the elastic part 82 is a pressure spring, the locking block 81 slides in the mounting groove 52, the sliding direction of the locking block 81 is the same as the axial direction of the second steel pipe 2, and the elastic part 82 is extruded between the inner wall of the mounting groove 52 and the locking block 81.

The side of the locking block 81 far from the axis of the second steel pipe 2 is in threaded connection with a push rod 83, and the push rod 83 points to the center of the positioning ring 5. The outer circumferential wall of the positioning ring 5 is provided with a guide groove 53 along the axis of the positioning ring 5, the guide groove 53 penetrates the mounting groove 52, the width of the guide groove 53 is smaller than that of the locking block 81, and the possibility that the locking block 81 is separated from the mounting groove 52 is reduced. The push rod 83 slides in the guide groove 53, and one end of the push rod 83 far away from the locking block 81 penetrates through the positioning ring 5.

The elastic member 82 applies an elastic force to the locking block 81, so that the locking block 81 moves towards the limiting groove 51, and the locking block 81 drives the push rod 83 to slide. When the push rod 83 slides to one end of the guide groove 53, the locking block 81 is fixed, and at this time, the locking block 81 abuts against one side of the limiting rod 6 far away from the abutting surface 41, so that the abutting of the clamping strip 4 is realized.

Referring to fig. 2 and 4, the locking block 81 is provided with a rounded corner at one side away from the abutting surface 41, when the limiting rod 6 is driven to rotate, the limiting rod 6 abuts against the rounded corner of the locking block 81, so that the locking block 81 automatically contracts into the mounting groove 52, the elastic member 82 is compressed, when the abutting surface 41 abuts against the inner wall of the accommodating groove 22, the clamping strip 4 is separated from the locking block 81, the elastic potential energy of the elastic member 82 is released, the locking block 81 is popped out and abuts against one side of the limiting rod 6 away from the abutting surface 41, and the operation of a worker is facilitated.

When the first steel pipe 1 needs to be retracted into the second steel pipe 2, the push rod 83 is pushed towards the direction close to the installation groove 52, the push rod 83 drives the locking block 81 to slide towards the direction of the installation groove 52, and the locking state of the clamping strip 4 can be released after the locking block 81 is separated from the accommodating groove 22. At this time, the rotating ring 7 is rotated, so that the clamping strip 4 is separated from the clamping groove 31, the first steel pipe 1 is moved, and the first steel pipe 1 is retracted into the second steel pipe 2.

The implementation principle of a telescopic steel pipe in the embodiment of the application is as follows: when first steel pipe 1 and second steel pipe 2 need be used, take first steel pipe 1 out from second steel pipe 2, make draw-in groove 31 communicate in holding tank 22, then rotate swivel ring 7, swivel ring 7 drives gag lever post 6 and rotates, gag lever post 6 drives card strip 4 and removes and makes card strip 4 peg graft in draw-in groove 31, card strip 4 support tight face 41 and contradict in the inner wall of holding tank 22 this moment, locking block 81 supports tightly in gag lever post 6 keeps away from one side of supporting face 41, make card strip 4 be in and support tight state, the relative fixation of first steel pipe 1 and second steel pipe 2 has been realized.

When the first steel pipe 1 and the second steel pipe 2 need to be stored, the push rod 83 is pushed towards the direction close to the installation groove 52, the push rod 83 drives the locking block 81 to slide towards the direction of the installation groove 52, and the locking state of the clamping strip 4 can be released after the locking block 81 is separated from the accommodating groove 22. At this time, the rotating ring 7 is rotated, so that the clamping strip 4 is separated from the clamping groove 31, the first steel pipe 1 is moved, and the first steel pipe 1 is retracted into the second steel pipe 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a telescopic steel pipe which characterized in that: the steel pipe joint comprises a first steel pipe (1) and a second steel pipe (2), wherein the first steel pipe (1) and the second steel pipe (2) are coaxially arranged, the first steel pipe (1) is connected to the second steel pipe (2) in a sliding mode, the outer circumferential wall of the first steel pipe (1) is attached to the inner wall of the second steel pipe (2), and a clamping strip (4) used for clamping the first steel pipe (1) is connected to the second steel pipe (2);

the outer circumferential wall of the first steel pipe (1) is connected with a sliding plate (3), the long side edge of the sliding plate (3) is parallel to the axis of the first steel pipe (1), and the inner wall of the second steel pipe (2) is provided with a sliding chute (21) for the sliding plate (3) to slide;

the second steel pipe (2) is provided with an accommodating groove (22), the accommodating groove (22) is communicated with the sliding groove (21) in the process that the first steel pipe (1) and the second steel pipe (2) slide relatively, and the clamping strip (4) is rotatably arranged in the accommodating groove (22) around the axis of the second steel pipe (2);

a clamping groove (31) is formed in the side face, away from the first steel pipe (1), of the sliding plate (3), the clamping groove (31) is an arc-shaped groove, the circle center of an arc line of the clamping groove is located on the axis of the first steel pipe (1), the clamping strip (4) is rotatably connected to the second steel pipe (2), and the clamping strip (4) is matched with the clamping groove (31) in an inserted mode;

a positioning ring (5) is fixedly sleeved on the second steel pipe (2), a limiting groove (51) is formed in one end face of the positioning ring (5) along the circumferential direction of the positioning ring, the limiting groove (51) penetrates through the outer circumferential wall of the second steel pipe (2), and a limiting rod (6) sliding in the limiting groove (51) is connected to the clamping strip (4);

be connected with on holding ring (5) and support tight subassembly (8), a terminal surface of card strip (4) is for supporting tight face (41), when card strip (4) are pegged graft in draw-in groove (31), supports tight face (41) and contradicts in the inner wall of holding tank (22), supports tight subassembly (8) and is used for supporting one side that tight spacing rod (6) kept away from to tight face (41).

2. The telescopic steel tube of claim 1, wherein: the sliding plate (3) is an arc-shaped plate, and the sliding plate (3) is attached to the outer circumferential wall of the first steel pipe (1).

3. The telescopic steel tube of claim 1, wherein: the sliding plates (3) are symmetrically arranged about the axis of the first steel pipe (1), and the clamping strips (4) are symmetrically arranged about the axis of the second steel pipe (2) and are arranged in a one-to-one correspondence manner with the sliding plates (3).

4. The telescopic steel tube of claim 1, wherein: support tight subassembly (8) including locking block (81), spacing groove (51) are opened on the inside wall towards the notch has mounting groove (52), locking block (81) slide in mounting groove (52), mounting groove (52) intussuseption is filled with and is used for driving elastic component (82) that locking block (81) removed towards spacing groove (51), be connected with push rod (83) on locking block (81), it has guide way (53) that supply push rod (83) to slide to open on holding ring (5), holding ring (5) are worn out to the one end of push rod (83), when card strip (4) are pegged graft in draw-in groove (31), the one side of keeping away from to tight face (41) of gag lever post (6) is contradicted in locking block (81).