KR200271031Y1 - Fixing a device of carrier guide pipe - Google Patents

Abstract

The present invention relates to a fixing device of the carrier guide pipe, and when looking at the configuration of the present invention, the engaging hole 11 formed to correspond to both sides at a predetermined position up and down, and the fixing frame 80 for supporting the upper side And a pair of support pipes 10 having a lower end coupled to the plate 91 of the base 90 movable by the conveying means 92, and coupled to the two support pipes 10, respectively, to be slide-moved. The first and second guide pipes 20 having locking holes 21 formed at upper and lower portions thereof, respectively, are slidably moved to upper sides of the first guide pipes 20 on both sides thereof, and both upper ends thereof have an operating lever 51. A guide pipe 1 made of a second guide pipe 20a connected by a handle 50, and lower ends of the first guide pipe 20 and the second guide pipe 20a of the guide pipe 1; Respectively coupled to the engaging holes (11, 21) The ball projecting projections 39 and 39a protrude to one side, and the fixtures 34 and 34a installed opposite to both sides are coupled to the lower portions of the fixtures 34 and 34a and moved to both sides, and the support pipe 10 is supported. And fixing members (30) (30a) having moving parts (31) (31a) that slide inwardly of the first guide pipe (20), and fixing members (30a) provided on the second guide pipes (20a) on both sides. The pressure portion 63 presses the upper sides of both fixing fixtures 34a), and the lower portion is coupled to the upper center of the pressure portion 63, and the coupling portion 61 is protruded and connected to the operation lever 51 at the upper side. Composed of the pressure member 60, the fixed portion of the guide pipe is firmly fixed both at the time of withdrawal or coupling, thereby preventing the separation of the fixed portion during transportation or coupling, and can be transported more stably and at the same time life of the product Will be extended.

In addition, since the withdrawal length of the guide pipe drawn out from the support pipe can be selectively adjusted freely according to the user's body, the practicality is improved, thereby improving the performance and usability of the product.

Description

Fixing a device of carrier guide pipe

The present invention relates to a fixing device of the carrier guide pipe, and more particularly to the guide pipe of the carrier used for transporting various articles to be pulled out and folded in multiple stages at the same time using a separate guide for adjusting the length of the guide pipe As both side surfaces of each guide pipe are fixed at the same time, the guide pipe is fixed more securely, and the fixing device of the carrier guide pipe prevents the detachment of the fixed part during transport movement and enables the transport movement more stably. .

In general, the carrier is used to transport various kinds of goods. In view of its configuration, a base having a transport means for seating various kinds of goods is located at a lower portion thereof, and a pair of support pipes are installed at one side of the base to correspond to the left and right sides. The guide pipe is coupled to the support pipe to slide out and folded, respectively, the upper end of the guide pipe is coupled to the handle portion that can be gripped by hand when connecting the two guide pipes, the fixed frame and the connection frame to the support pipe The upper and lower fixed intervals are fixed.

In the guide pipe fixing device of the conventional carrier configured as described above, the fixing means for fixing the guide pipe and the support pipe is particularly described with reference to Utility Model Registration No. 231847, filed by the applicant.

As shown in FIG. 5, a plurality of catching holes 111 are formed at a predetermined interval in a pair of support pipes 110 installed at both sides of the base portion 100 provided with the carrying means 200, and the support pipes are provided. A lower end of the guide pipe 120 coupled to slide out and folded at 110 is provided with a protrusion 121 elastically and elastically supported at the engaging hole 111, and the protrusion 121 has a handle at an upper portion thereof. It is fixed to the elastic piece 133 connected to the lever 131 and the cable 132 installed in the 130, the elastic piece 133 is fixed to the cable 132 by a spring and a nut.

In the conventional carrier guide pipe fixing device configured as described above, the guide pipe 120 coupled to the left and right pair of support pipes 110 is guided up and down in the support pipes 110 and slides to reach a predetermined position. Will be fixed.

In this case, the fixing is performed as the protrusion 121 installed inside the lower end of the guide pipe 120 is elastically supported in the locking hole 111 formed in the support pipe 110 and is elastically supported. When the lever 131 of the handle 130 is moved during movement, the elastic piece 133 connected to the lever 131 by the cable 132 is retracted, and at this time, the protrusion 121 connected to the elastic piece 133 is moved. The guide pipe 120 is able to slide up and down as it is pulled inwardly along the elastic piece 133 and is separated from the locking hole 111.

As described above, the fixing means installed inside the lower end of the guide pipe 120 may include the protrusion 121 connected to the elastic piece 133 and the lever 131 of the handle 130 to operate the elastic piece 133. 121 is formed as a locking hole 111 formed in the support pipe 110 at a predetermined interval so as to be caught, the protrusion 121 of the fixing device installed in the lower inner side of the pair of guide pipe 120 is one side of each guide pipe. Only one side is fixed to both support pipes 110 to be provided.

As described above, the fixing device for drawing and folding the carrier guide pipe is a guide pipe which is selectively fixed while being slid on the support pipe, and the fixing means installed on the guide pipe is installed only on one side of each side of the guide pipe. As only one side of the support pipe is supported, the fixing force is weak, so that if a slight vibration and impact are applied during transportation, the protrusion is easily released from the locking hole and the fixed state is released.

Therefore, not only the fixing force of the fixing portion is lowered, but also the handle portion, the protrusion and the elastic piece are connected by the cable, and when the impact occurs, the connecting portion is easily broken, and the elastic piece that operates the protrusion is deteriorated when the elastic force is used for a long time. Failure to do so often leads to failures.

As described above, the fixing device of the conventional carrier guide pipe reduces the stability when carrying various kinds of goods by using the carrier, and may cause an accident in severe cases, as well as fixing nuts, springs, cables, elastic pieces, and protrusions. Not only does the number of parts constituting the means increase the cost, but it also increases the failure rate and shortens the service life, and the draw length of the handle is limited as the handle is pulled out. There is this

Therefore, the object of the present invention is to solve the conventional problems as described above, by using a separate fixing means for the carrier guide pipe used in the transport of various articles to be fixed at both sides of each guide pipe on both sides at the same time In addition, the guide pipe is drawn out more firmly and stably fixed, and to provide a fixing device of the carrier guide pipe to prevent the separation of the fixed portion during transport movement and to move the transport more stably.

Still another object of the present invention is to provide a more stable and convenient fixing device for the carrier guide pipe by allowing the guide pipe of the carrier to be drawn out in multiple stages so that the handle can be selectively pulled out according to the user's body.

The present invention for achieving the above object is a guide pipe having a pair of both sides and the guide pipe is coupled to slide the support pipe which is fixed but fixed, both sides of each guide pipe at the bottom of the pair of guide pipe The support pipe to which the support and elasticity can be projected, and the support pipe to which the guide pipe is coupled to form a locking hole to support the carbure protrusion protruding from both sides to further secure the fixing force of the support pipe and the guide pipe. On the other hand, it is a technical problem to provide a fixing device of the carrier guide pipe to draw and fold the guide pipe coupled to the support pipe in two or more multi-stage.

1 is an exploded perspective view of the main part according to an embodiment of the present invention,

Figure 2 is an enlarged cross-sectional view of the main part of the present invention,

Figure 2a is a cross-sectional view of the state in which the first and second guide pipe of the present invention is drawn out,

Figure 2b is a cross-sectional view showing that the operating lever is activated to release the fixed state by pressing the fixture fixed to the second guide pipe,

FIG. 2C is a cross-sectional view showing that the second guide pipe slides toward the first guide pipe to release the fixed state by pressing the fastener fixed to the first guide pipe. FIG.

3 is an operational state diagram of the present invention,

Figure 4 is an enlarged perspective view of the main part according to another embodiment of the present invention

5 is a sectional view of a prior art.

※ Explanation of symbols for main part of drawing

1: guide pipe 10: support pipe

20: first guide pipe 11, 21; Jam hole

20a: second guide pipe 30, 30a; Fixing member

31, 31a: moving parts 32, 32a; support fixture

33, 33a: guide rails 34, 34a; Fixture

35, 35a: guide parts 36, 36a; Joiner

37, 37a; Vertical planes 38, 38a; incline

39, 39a; Carburizing protrusions 40, 40a; rail

41, 41a; Springs 42a, 65; Slope

43a, 64; Protrusion 50; Handle

51; Operating lever 52; Home

60; Pressing member 61; Engaging protrusion

62; Shot spring 63; Pressure

The present invention for achieving the above object is a support pipe which is installed on the base portion provided with a conveying means and a pair of both sides, a guide pipe coupled to the support pipe to slide up and down, and the guide pipe A carrier having a handle portion for connecting an upper portion of the support pipe, and a fixing means for selectively fixing the guide pipe coupled to the support pipe, the engaging hole 11 having both sides corresponding to upper and lower predetermined positions; A pair of left and right support pipes 10 having a fixed frame 80 for supporting the side, and having a lower end coupled to the plate 91 of the base 90 that is movable by the conveying means 92, and the both sides of the support pipe 10; The first guide pipe 20 and the first guide pipe 20, which are coupled to each other in the pipe 10 and are slid and moved, respectively, with engaging holes 21 formed on upper and lower sides of both sides, respectively. A guide pipe (1) consisting of a second guide pipe (20a) coupled to the upper side of the slide movement, the upper end of both sides are connected by a handle portion 50 having an operating lever 51, and the guide pipe (1) Fixtures which are respectively coupled to the lower end portions of the first guide pipe 20 and the second guide pipe, and the projections 39 and 39a coupled to the locking holes 11 and 21 are protruded to one side and faced to both sides. (34) 34a and the lower portion of the fasteners 34 and 34a are combined to move to both sides and the moving part 31 to be moved inwardly of the support pipe 10 and the first guide pipe 20 ( A pressure portion 63 for pressing the upper portion of both the fixing members 34a of the fixing members 30 and 30a having the 31a), the fixing members 30a installed in the second guide pipes 20a, and the pressure. The lower portion is coupled to the upper center of the upper portion 63, and the upper side has a coupling protrusion 61 formed to protrude and connected to the operation lever 51. And to provide a fixing device of the carrier, it characterized in that the guide pipe been composed of pressure member 60.

According to a preferred embodiment of the present invention, the moving parts 31 and 31a of the fixing members 30 and 30a form support members 32 and 32a so as to face each other on both sides of the upper surface, and the support member 32 Guide rails (33) and (33a) are formed at the lower part of the (32a), and both fixing fixtures (34) and (34a) coupled to the guide rails (33) and (33a) are guide rails (33) (33a). Guide parts 35 and 35a which are guided and slid to each other are integrally formed, and the fixtures 34 and 34a are installed to face each other with their sides facing each other, but one side is formed as a vertical surface 37 and 37a. The other side thereof has an inclination angle so as to have inclined surfaces 38 and 38a, respectively, and each of the vertical surfaces forms coupling holes 36 and 36a into which the springs 41 and 41a are inserted. The pressure portion 63 installed at the upper portion of the fixture 34a forms a hole 66 to which the pressing member 60 is coupled to the upper surface thereof, and a stone corresponding to the rail 40a of the fixture 34a at the lower portion thereof. Carrier guide having a portion 64, the extended portion of the both side projections 64 is formed so that the inclined portion 65 having the same inclination angle as the inclined surface 38a of the fastener 34a is formed to be mutually coupled It is intended to provide a fixture for the pipe.

According to another preferred embodiment of the present invention, the bottom surface of the moving part 31a of the fixing member 30a fixedly coupled to the lower end of the second guide pipe of the fixing member 30 coupled to the lower end of the first guide pipe. The inclined portion 42a is formed to be equal to the inclined angle of the inclined surface 38 of the fastener 34 so as to be coupled to the upper surface of the fastener 34, and the inclined portions 42a protrude from the protrusions 43a, respectively. An object of the carrier guide pipe is to be provided.

According to another preferred embodiment of the present invention, the engaging projection 61 protruding to the upper portion of the pressing member 60 is formed on both sides of the guide groove 52 formed on both sides of the operating lever 51 of the handle portion 50. The carrier is characterized in that the coupling lever 61 and the guide grooves 52 when the coupling protrusions (61) are embedded in the inner lever by the operation of the carbon spring (62) to the operating lever It is intended to provide a fixing device for the guide pipe.

According to still another preferred embodiment of the present invention, the fixing members 30, 30a are provided in the first and second guide pipes 20, 20a, which are paired on both sides, respectively, so that both sides are fixed. An object of the present invention is to provide a fixing device for a carrier guide pipe.

According to a preferred embodiment of the present invention, a plurality of engaging holes (11) formed at a predetermined line on the vertical line facing both sides formed on the upper and lower predetermined portions of the support pipe 10 at both sides with a ball projecting projection (39) To provide a fixing device of the carrier guide pipe, characterized in that) is selectively coupled to each of the plurality of engaging holes (11).

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 is an exploded perspective view of a main part according to an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of the present invention, and FIG. 2A is a cross-sectional view of the first and second guide pipes of the present invention drawn out, and FIG. 2B. Figure 2 is a cross-sectional view showing that the operating lever is operated and the fixed state is released by pressing the fixing fixture fixed to the second guide pipe, Figure 2c is the second guide pipe slides toward the first guide pipe fixed to the first guide pipe Figure 3 is a cross-sectional view showing that the fixed state is released by pressing the fixture, Figure 3 is an operating state of the present invention, Figure 4 is an enlarged perspective view of the main portion according to another embodiment of the present invention. The upper side of the) is coupled to the fixing frame 80, the lower side is fixed to the plate 91 of the base 90 to support and support both support pipe 10 more firmly.

Coupling protrusions 39 and 39a are coupled to the engaging holes 11 formed at upper and lower predetermined positions of the both side support pipes 10 and the engaging holes 21 formed at the upper side of the first guide pipe 20, respectively. It is formed so as to be mutually coupled to each other, the engaging holes (11, 21) are formed to be opposite to each side of each support pipe (10) on both sides of the ball projecting projections (39, 39a) of the fasteners (34, 34a) The support pipe 10 and the first guide pipe 20 of the two to each of the four places to be supported and fixed.

At this time, the engaging hole 11 formed in the support pipe 10 is not only up and down, but also slides on the support pipe 10 by forming a plurality of three or more on a vertical line with a predetermined interval as shown in FIG. The withdrawal length of the first guide pipe 20 to be selectively adjusted to be subdivided.

As described above, the first guide pipe 20 slides into the support pipe 10 and adjusts the extraction length, and the moving part of the fixing member 30 fixed to the lower end of the first guide pipe 20. 31 is closely supported on the inner surface of the support pipe 10 and the slide is prevented as the slide moves.

In addition, the second guide pipe 20a coupled to the upper side of the first guide pipe 20 also slides while the moving part 31a of the fixing member 30a is closely supported on the inner side of the first guide pipe 20. As a result, flow is prevented.

As such, the fixing members 30 and 30a fixed to the lower ends of the first and second guide pipes 20 and 20a are positioned under the pressure part 63 of the pressure member 60 and retracted when the pressure part descends. When the pressure part 63 returns to its original position, it is composed of fasteners 34 and 34a, which are returned to their original positions, and moving parts 31 and 31a which slide up and down on the support pipe 10.

On the other hand, the center of the upper surface of the pressure portion 63 is formed with a hole 66 to which the pressing member 60 is coupled and fixed, and the projections 64 coupled to the rail 40a of the fixture 34a at both lower sides thereof. Are each formed, and the inclined portion 65 extending to the inner upper portion of the protrusion 64 is formed to correspond to both sides, but is formed to be equal to the inclination angle of the inclined surface 38a of the fixture 34a.

Positioning the lower portion of the pressure portion (63) and the two fasteners (34a) on both sides operated when the pressure portion 63 is lowered, the guide portion (35a) is formed integrally protruding to the lower both sides, the inclination of the pressure portion (63) An inclined surface 38a having the same inclination angle as the portion 65 is formed to one side, that is, the outward direction, and the other side thereof is formed to the vertical surface 37a so that the vertical surface portions of both fasteners 34a face each other and are mutually positioned. The coupling holes 36a are formed in the vertical surfaces 37a of the facing fixtures 34a, respectively, and are then interconnected to have elasticity between the coupling holes 36a by using springs 41a.

On the other hand, guide rails 33a are formed on the upper surface of the moving part 31a, and support members 32a are provided on both sides of the upper part of the guide rails 33a, respectively, and then pressure parts are provided inside the support members 32a. The 63 is slidably coupled to the outside thereof, and the first guide pipe 20 is coupled to the outside thereof, and the lower side of the moving part 31a forms an inclined portion and a protrusion in the same manner as the pressure portion 63.

And the pressing member 60 is fixed to both ends of the lower end coupled to the hole 66 formed in the upper portion of the pressure portion 63, as shown in Figure 2, both ends of the coupling projection 61 is connected to the upper side Protruding to a predetermined portion is coupled to both guide grooves 52 formed on the operating lever 51 of the handle portion 50, respectively, wherein the tantalum spring 62 is coupled to the outer peripheral surface of the engaging projection (61).

Referring to the operation of the present invention as described in more detail as follows.

First, referring to FIGS. 1 and 2, the coupling of each component is described. Referring to FIG. 1 and FIG. After coupling the lower end on the plate 91 of the base 90, the first guide pipe 20 is coupled to the upper portion of the two support pipes 10 to slide.

Inside the lower end of the first guide pipe 20 is fixed to the fixing member 30 is coupled to the moving part 31 and the fastener 34 is coupled to be fixed, in particular located above the moving part 31 The inclined surface 38 of the fixture 34 protrudes from the upper surface of the moving part 31.

At the lower ends of both side second guide pipes 20a coupled to the first guide pipe 20, the pressure part 63 connected to the pressing member 60 and the pressure part 63 are positioned below the pressure part 63. When the pressure portion 63 is retracted, it is composed of a fastener 34a which is returned to its original position, and a moving part 31a which is coupled to the fastener 34a and slides on the first guide pipe 20. The fixing member 30a is fixedly coupled to selectively fix the second guide pipe 20a that is moved up and down on the first guide pipe 20 by the operation of the fixing member 30a at a desired position.

The first and second guide pipes 20 and 20a are coupled to and fixed to the outside of both side supports 32 and 32a formed on the moving parts 31 and 31a of the fixing members 30 and 30a, respectively. The pressure guide 63 is coupled to the inside of the support 32a so as to be movable, and the second guide pipe may be used as the support 32 of the fixing member 30 fixed to the first guide pipe 20. 20a) The moving part 31a of the fixing member 30a fixed to the lower end is slid.

Meanwhile, upper portions of the second guide pipes 20a on both sides are fixedly coupled to the handle part 50, and the upper side of the handle part 50 lowers the pressing member 60 to the lower side. 51).

The guide groove 52 of the operating lever 51 is coupled to the engaging projection 61 protruding on the upper side of the pressing member 60 in a state where the tantalum spring 62 is fitted, the operating lever 51 The stopper 53 protruding to both sides of the stopper 53 prevents the operation lever 51 from being separated from the guide 54 of the handle part 50, and the lower end of the pressing member 60 has a hole formed in the pressure part 63. 66) to be fixed.

On the other hand, the upper side of the first guide pipe 20 and the support pipe 10 is installed to each of the support frame 70 and the fixing frame 80 to connect each pipe installed on both sides to support and support each other.

Referring to the operating state of the subject innovation coupled as described above are as follows.

First, the folding of the length adjusting guide pipe 1 in the drawn state will be described. When pressure is applied to the operating lever 51 provided on the handle part 50, the guide pipe 52 of the operating lever 51 is coupled to the guide groove 52. The coupling protrusion 61 is lowered to receive the pressure, and the coupling protrusion 61 is moved downward as the coupling protrusion 61 is integrally formed with the pressing member 60.

The pressure member (60) is fixed to the lower end of the pressure member (60) so that the pressure unit (63) is also slid to the support (32a) protruding to the upper portion of the moving part (31a) to move downward.

As described above, when the pressure unit 63 moves downward, the pressure unit 63 presses the fixture 34a located at the lower side, and the both side fixtures 34a under the pressure move toward the center as shown in FIG. 2B.

At this time, the bottom of the lower side of the pressure portion 63 and the two side fasteners 34a coupled thereto form the inclined portion 65 and the inclined surface 38a corresponding to each other, and then the inclined portion 65 and the inclined surface 38a. As the upper and lower sides are coupled to each other, the inclined surface 38 of the pressure fitting 63 presses the inclined surface 38a of the fastener 34a from the upper side, and the inclined surface 38a of the both fasteners 34a is inclined. 65, it is moved to the center as if pushed, when looking at the movement, guides (35a) formed on both sides of the fixture (34a) slides along the guide rail (33a) of the moving part (31a) and both fixtures 34a all move toward the center portion.

On the other hand, when the pressure portion 63 is lowered as described above and presses the upper portion of the fixture 34a, the protrusions 64 protruding to both sides of the pressure portion 63 are respectively provided on the rails 40a of the fixtures 34a on both sides. To be combined.

When the fastener 34a is pushed toward the center part by the pressure of the pressure unit 63 as described above, the ball projecting protrusion 39a of the fastener 34a that is engaged in the upper locking hole 21 of the first guide pipe 20. Is separated from the locking hole 21 and the movement of the second guide pipe 20a is completed, that is, the preparation of the slide movement of the second guide pipe 20a is completed. .

In such a state, when the second guide pipe 20a is moved downward and the operation lever 51 is released again, the pressure member 60 is returned to its original position by the restoring force of the ball spring 62 and the pressure part connected to the pressure member. The 63 is also restored to its original position, and both fasteners 34a of the fixing member 30a are returned to their original positions by the elasticity of the spring 41a.

That is, when the second guide pipe 20a is drawn out to the upper side, the second guide pipe 20a slides to the first guide pipe 20 so that the bullet of the fixing member 30a fixed to the lower end of the second guide pipe 20 may be fixed. The projection 39a is caught by the lower side locking hole 21 of the first guide pipe 20.

On the contrary, if the second guide pipe 20a is coupled to the first guide pipe 20 side, the second guide pipe 20a is withdrawn from the first guide pipe 20, and then the upper portion of the first guide pipe 20 is located. As the ball projecting protrusions 39a of the both side fasteners 34a are respectively coupled to the both side locking holes 21 formed at the side, the guide pipe of the carrier is drawn out and folded in one step and maintained in the fixed state. .

As shown in the drawing out and folded in the first step as described above withdrawal and folding in the second step, the first projection pipe (39a) coupled to the lower engaging hole 21 of the first guide pipe 20 is coupled to the first step In the second guide pipe (20a) folded in the pressure is applied to the fixing member 30a fixed to the lower end of the second guide pipe again the holding member 30a is formed in the lower hole of the first guide pipe After the bullet protrusion 39a fitted in the 21 is removed from the locking hole 21, the moving part 31a is moved toward the fixing member 30 fixed to the lower end of the first guide pipe 20 again. The pressure is transmitted to the fixture 34 located above the fixing member 30.

The fastener 34 of the fixing member 20 coupled to the first guide pipe 20 and fixed as described above is formed on the bottom surface of the moving part 31a of the fixing member 30a fixed to the second guide pipe 20a. Received pressure from the operating lever 51 in a state in close contact with the inclined portion (42a), as described above, the pressure-received both fixtures 34 are moved toward the center in the same manner as the first step The protruding portion 43a protruding from the portion 42a is slid along the rail 40.

As described above, the fastener 34 moved to the center portion of the fastener 34 is detached from the upper locking hole 11 of the support pipe, so that the preparation of the first guide pipe may be completed.

In this way, when pressure is applied from the upper part in the state where the bullet projection 39 is separated from the locking hole 11, the first guide pipe 20 is folded into the support pipe 10 and fixed to the upper locking hole of the support pipe. As the shot protrusion 39 is fixed to the locking hole 11 on the lower side, the folding projection 39 is completed in two steps.

Meanwhile, as shown in FIG. 4, the engaging holes 11 formed on both sides of the support pipe 10 formed to be spaced apart a predetermined distance up and down as described above are maintained at a constant distance on the vertical lines on both sides of the support pipe 10. After the formation of a plurality of pieces, the first guide pipe 20 is moved by sliding the ball projecting projection 39 of the fixture 34 to any one of the engaging holes 11 of the plurality of engaging holes (11) And to adjust the withdrawal length of the guide pipe 20 to be drawn on the support pipe 10 more finely.

And when the user wants to adjust the length to the desired position, when reaching the appropriate position in the state holding the operating lever 51 of the handle portion 50, after releasing the operation of the operating lever 51, the handle portion 50 When the first guide pipe 20 is pulled out or pushed in, the first projection pipe is drawn out of the support pipe as the ball projecting projection 39 of the fixture 34 is coupled to the first locking hole 11 first reaching. The withdrawal length of the pipe 20 is selectively adjusted.

In order to withdraw the present invention according to the embodiment as described above, when the pull lever 50 is pressed after the operation lever 51 is pulled out and coupled to the first support pipe, the first guide pipe 20 is drawn out and again. When the operating lever is operated, the second guide pipe 20a folded in the first guide pipe 20 is again drawn out.

At this time, the operation relationship of the fixing member (30) (30a) at the time of withdrawal is the same as the folding time will be omitted.

According to the present invention as described above, the guide pipe 1 for adjusting the length of the carrier is pulled out and folded in one end and two ends.

Withdrawal and fixing means of the carrier guide pipe of the present invention as described above in the carrier used for the transport of various articles, is installed on both sides is fixed to a pair of length adjustment guide pipe and the support pipe using a separate fixing member As the site is formed in several places, the guide pipe is more firmly fixed on the support pipe.

In addition, the guide pipe is drawn out and folded in multiple stages, and even after the guide pipe is completely coupled to the support pipe, the fixing is completely performed to prevent the separation and the like.

The present invention as described above, since both the fixed portion of the support pipe and the guide pipe is firmly fixed at the time of withdrawal or coupling, it prevents the departure of the fixed portion during transport or when combined, and can be transported more stably and at the same time the life of the product Will be extended.

In addition, since the withdrawal length of the guide pipe drawn out from the support pipe can be selectively adjusted freely according to the user's body, the practicality is improved, thereby improving the performance and usability of the product.

Claims (4)

A plate of the base 90 having a locking hole 11 having both sides corresponding to upper and lower predetermined positions and a fixing frame 80 for supporting the upper side, and having a lower end movable by the conveying means 92 ( A pair of support pipes 10 coupled to 91; The first guide pipe 20, which is coupled to each of the two side support pipes 10 and slides, and has engaging holes 21 formed on both upper and lower sides thereof, and the upper side of the first guide pipe 20, respectively. A guide pipe (1) coupled to the slide movement and composed of a second guide pipe (20a) connected by a handle part (50) having both upper end portions with operating levers (51); One side of the first projection pipe 20 and the second guide pipe 20a of the guide pipe 1 are coupled to the lower ends of the projections 39 and 39a coupled to the engaging holes 11 and 21, respectively. Protruded to the opposite sides and installed on both sides of the fixture (34) (34a), and the lower portion of the fixture (34) (34a) is moved to both sides and to the inside of the support pipe 10 and the first guide pipe (20) A fixing member (30) (30a) having a moving part (31) (31a) that is slid; Pressure parts 63 for pressing the upper parts of both fixing fixtures 34a of the fixing member 30a installed in the second guide pipe 20a on both sides, and a lower part are coupled to the upper center of the pressure part 63, and the upper side is coupled. Fixing device of the carrier guide pipe, characterized in that the projection 61 is formed of a pressing member (60) connected to the operation lever (51) protruding. The movable parts 31 and 31a of the fixing members 30 and 30a form support members 32 and 32a so as to face each other on both sides of the upper surface, and the support members 32 and 32a. Guide rails (33) and (33a) are formed at the bottom of the guide rails, and both fasteners (34) and (34a) coupled to the guide rails (33) (33a) are guided to the guide rails (33) (33a) and slide. Each of the guides 35 and 35a to be moved are integrally formed, and the fixtures 34 and 34a are installed to face each other with their sides facing each other. Has an inclination angle so as to have inclined surfaces 38 and 38a, respectively, and each of the vertical surfaces forms coupling holes 36 and 36a into which springs 41 and 41a are inserted. The pressure portion 63 installed at the top of the) forms a hole 66 to which the pressing member 60 is coupled to the upper surface, and the protrusion 64 corresponding to the rail 40a of the fixture 34a to the bottom. Having, said Side of the retainer that has the same inclination angle as the inclined surface (38a) of the elongated portion is the fastener (34a) inclined portion carrier guides, characterized in that that (65) is formed of a pipe coupled together projection 64. The lower surface of the moving part 31a of the fixed member 30a coupled to the lower end of the second guide pipe 20a is coupled to the lower end of the first guide pipe 20. The inclined portion 42a is formed to be equal to the inclined angle of the inclined surface 38 of the fastener 34 so as to be coupled to the upper surface of the fastener 34 of the fixing member 30, and the inclined portion 42a is a protrusion 43a. Fixing device of the carrier guide pipe formed by protruding each. According to claim 1, wherein the upper and lower predetermined portions of the support pipe 10 are formed with a plurality of engaging holes (11) formed at a predetermined interval on a vertical line facing to both sides at a predetermined distance to the ball projecting projections (39) Fixing device of the carrier guide pipe, characterized in that to be selectively coupled to each of the plurality of engaging holes (11).