A hose reel

Abstract

The present invention discloses a hose reel, comprising a housing, a wheel provided within the housing, a driving mechanism providing power for the wheel to be wound between the side of the wheel and the inner wall of the housing, a guide opening for the entry and exit of pipes being opened on one side of the housing, a protective cover fixedly mounted on the outer side of the housing at the guide opening, a guide cylinder rotatably mounted within the protective cover for guiding the pipe to be wound around the wheel, a transmission mechanism fixedly mounted on the circumferential side of the guide cylinder for driving the guide cylinder to swing back and forth along the axial direction of the wheel. The pipe enters and exits the hose reel through the guide cylinder, the wheel within the hose reel reels the pipe under the drive of the driving mechanism, the transmission mechanism drives the guide cylinder to rotate so that the end of the guide cylinder located inside the housing swings along the axial direction of the wheel, and the pipe is wound around the wheel layer by layer in sequence. On the one hand, this saves space occupied by the pipe after winding, and on the other hand, it avoids the situation where the pipes are overlapped and difficult to pull out when being pulled out.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipes, and in particular to a hose reel. Background Art

[0002] In gardens, playgrounds, and other places, hoses are often used for irrigation, spraying, and other tasks. To reduce the hassle of using and recycling hoses, hose reels are often installed. Currently, the most common hose reels on the market consist of a hose reel and a hose drive, which can be either manually or electrically driven.

[0003] However, when the existing reel winds the pipe, the pipe is wound on the wheel in an irregular manner (for example, more pipes are wound on one side of the wheel and less on the other side, or the number of turns of each layer of the pipe wound on the wheel is sometimes sparse and sometimes dense). As a result, the space occupied by the pipe is not constant. To ensure that the pipe is completely accommodated inside the reel, the gap between the shell and the wheel is much larger than the thickness of the largest ring formed after the pipe is wound, resulting in material waste and the possibility of the pipe getting stuck. Summary of the Invention

[0004] In order to solve at least one of the technical problems mentioned in the background art, an object of the present invention is to provide a hose reel that allows the hose to be evenly wound around a wheel.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hose reel comprising a shell, a disc being provided inside the shell, a driving mechanism being provided on the disc to provide power for winding the disc, a guide opening for the entry and exit of pipes being opened on one side of the shell, a protective cover being fixedly installed on the outside of the shell at the guide opening, a guide cylinder for guiding the pipe to be wound around the disc being rotatably installed inside the protective cover, and a transmission mechanism being fixedly installed on the peripheral side of the guide cylinder to drive the guide cylinder to swing back and forth along the axial direction of the disc.

[0006] Furthermore, the transmission mechanism includes a turntable fixed on the guide cylinder, a guide rod is fixedly installed on the turntable, a square frame is slidably installed on the peripheral side of the guide rod to push the guide rod to move, a connecting frame is fixedly installed on the outer side of the square frame, and a reciprocating unit for driving the connecting frame to move back and forth along the axial direction of the wheel disc is fixedly installed on the side of the connecting frame away from the square frame.

[0007] Furthermore, the reciprocating unit includes a sleeve, a connecting rod is sleeved on the axis of the sleeve, the connecting rod is fixedly connected to the connecting frame, a reciprocating double helical groove is opened on the inner wall of the sleeve, a strip slider is slidably installed in the reciprocating double helical groove, an axle rod is connected to the strip slider and the connecting rod for common rotation, a pressure plate for limiting the rotation of the square frame is fixedly installed on the wheel, and a driving member for driving the sleeve to rotate is fixedly installed on the side of the sleeve away from the connecting rod.

[0008] Furthermore, when the strip slider moves to the first end face of the reciprocating double helical groove, the strip slider drives the guide rod to move to the first extreme position through the connecting rod, the connecting frame and the shape frame, and at this time the pipe fitting at the pipe outlet of the guide cylinder is wound around the first end face of the wheel disc; when the strip slider moves to the second end face of the reciprocating double helical groove, the strip slider drives the guide rod to move to the second extreme position through the connecting rod, the connecting frame and the shape frame, and at this time the pipe fitting at the pipe outlet of the guide cylinder is wound around the second end face of the wheel disc.

[0009] Furthermore, the driving member includes a driven gear plate, the end face of the driven gear plate is fixedly connected to the end face of the sleeve, the end face of the wheel plate is fixedly mounted with a driving gear plate coaxial with the wheel plate, and the driving gear plate and the driven gear plate are jointly sleeved with a toothed belt.

[0010] Furthermore, a friction unit is provided inside the guide cylinder. The friction unit includes a plurality of friction wheels in contact with the pipe. The friction wheels are provided in the guide cylinder. The rotation direction of the friction wheels is the same as the movement direction of the pipe.

[0011] Furthermore, the peripheral side surface of the friction wheel is an inwardly concave arc surface, and the inwardly concave arc surface is in contact with the surface of the pipe fitting.

[0012] Furthermore, a square hole for placing a friction wheel is opened in the guide cylinder, a slide is installed on the friction wheel and in the through hole, a limit block is fixedly installed on the inner wall of the square hole to prevent the slide from escaping from the square hole, a compression spring is fixedly installed on the end of the slide away from the friction wheel, a top block is fixedly installed on the end of the compression spring away from the slide, and the end of the top block away from the compression spring is located on the outside of the guide cylinder, a threaded cylinder is threadedly connected to the outside of the guide cylinder, the inner wall of the threaded cylinder abuts against the top block, and the contact surface between the threaded cylinder and the top block is an inclined surface.

[0013] Furthermore, a positioning frame is rotatably installed at the axis center of the side surface of the friction wheel shaft, the positioning frame is fixedly connected to the guide cylinder, and the peripheral side surfaces of the friction wheel are respectively coated with adjacent particle layers and smooth layers. A first clamping block and a second clamping block are fixedly installed on the side surfaces of one of the shafts of the friction wheel. During the winding process of the pipe fitting, the pipe fitting drives the friction wheel to rotate in the first direction, and the friction wheel drives the first clamping block to abut against the positioning frame. At this time, the particle layer on the surface of the friction wheel contacts the surface of the pipe fitting. During the unwinding process of the pipe fitting, the pipe fitting drives the friction wheel to rotate in the second direction, and the friction wheel drives the second clamping block to abut against the positioning frame. At this time, the smooth layer on the surface of the friction wheel contacts the surface of the pipe fitting.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the pipe enters and exits the hose reel through the guide cylinder, and the disc inside the hose reel reels the pipe under the drive mechanism. At this time, when the pipe is guided by the guide cylinder and wound on the disc, the transmission mechanism drives the guide cylinder to rotate, so that the end of the guide cylinder located inside the shell swings along the axial direction of the disc, and the pipe passing through the guide cylinder is wound on the disc layer by layer under the swing of the guide cylinder. On the one hand, the space occupied by the pipe after winding is saved, and on the other hand, it avoids the situation where the pipes are staggered and overlapped when pulling out, making it difficult to pull out the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is an overall side sectional view of the present invention;

[0017] Figure 3 It is a partial front view of the protective cover, guide cylinder and transmission mechanism of the present invention;

[0018] Figure 4 For the present invention Figure 3 A partial enlarged schematic diagram of the structure at center A;

[0019] Figure 5 It is a partial right side view of the protective cover, guide cylinder and transmission mechanism of the present invention;

[0020] Figure 6 It is a partial schematic diagram of the reciprocating unit of the present invention;

[0021] Figure 7 This is a schematic diagram of a first variation of the reciprocating unit, guide cylinder and transmission mechanism of the present invention;

[0022] Figure 8 This is a schematic diagram of a second variation of the reciprocating unit, guide cylinder and transmission mechanism of the present invention;

[0023] Figure 9 This is a full cross-sectional view of the guide tube of the present invention;

[0024] Figure 10 For the present invention Figure 7 A partial enlarged schematic diagram of the structure at point B in the middle;

[0025] Figure 11 This is a schematic diagram of the shrinkage of the pipe fitting of the present invention;

[0026] Figure 12 For the present invention Figure 9 A partial enlarged schematic diagram of point C in the middle;

[0027] Figure 13 This is a schematic structural diagram of the friction wheel of the present invention.

[0028] In the figure: 1. shell; 2. wheel disc; 3. driving mechanism; 4. guide port; 5. protective cover; 6. guide cylinder; 61. friction wheel; 611. particle layer; 612. smooth layer; 613. first clamping block; 614. second clamping block; 62. square hole; 63. slide; 64. limit block; 65. compression spring; 66. top block; 67. threaded cylinder; 7. transmission mechanism; 71. turntable; 72. guide rod; 73. square frame; 74. connecting frame; 75. reciprocating unit; 751. sleeve; 752. connecting rod; 753. reciprocating double helical groove; 754. strip slider; 755. pressure plate; 76. driving member; 761. driven gear disc; 762. driving gear disc; 763. toothed belt; 8. sealing plate; 9. pipe inlet; 10. cleaning cylinder. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of 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 making any creative efforts are within the scope of protection of the present invention.

[0030] In the garden, water is needed to irrigate trees and bushes. Since the garden area is large, water needs to be diverted from the water source through water pipes. However, since the water pipes are long and inconvenient to store, a hose reel is needed.

[0031] See also Figure 1 and Figure 2 The present embodiment provides a hose reel, comprising a shell 1, a wheel 2 provided in the shell 1, a driving mechanism 3 for providing power for the wheel 2 to be wound is provided between the side surface of the wheel 2 and the inner wall of the shell 1, and a guide port 4 for the entry and exit of pipes is opened on one side of the shell 1.

[0032] The driving mechanism 3 may be a rotary motor or a coil spring device.

[0033] When the pipe is needed, it is pulled out from the pipe reel, so that the pipe wound on the disc 2 drives the disc 2 to rotate when it is pulled out. The elastic mechanism connected to the disc 2 gathers force inside to drive the disc 2 to reverse. After the pipe is used, the disc 2 is driven to reverse through the driving mechanism 3, thereby achieving the purpose of the pipe reel to automatically reel the pipe.

[0034] When conventional reels wind pipes, the pipes are wound around the disc 2 in an irregular pattern (for example, more pipes are wound on one side of the disc and less on the other side, or the number of turns of the pipes on each layer on the disc is sometimes sparse and sometimes dense). As a result, the space occupied by the pipes is variable. To ensure that the pipes are completely contained within the reel, the gap between the housing 1 and the disc 2 is much larger than the thickness of the largest ring formed after the pipes are wound.

[0035] This is to prevent the pipe from getting stuck and winding up.

[0036] At the same time, when the pipe is wound on the disc 2 irregularly (that is, after the pipe is first wound to a certain thickness at the same position on the disc 2, and then wound at another position on the disc 2, there is a thickness difference between the discs 2 where the two pipes are wound. When the winding disc is vibrated, the pipe with a larger thickness loosens and covers the pipe with a smaller thickness), when the pipe is pulled outward from the disc 2, the pipe with a smaller thickness begins to separate from the disc 2 first. However, after the pipe is subjected to force, all the pipes shrink, and the pipe layer with a smaller thickness is squeezed and bound by the pipe covering it, resulting in the pipe that is about to separate from the disc 2 being restricted and unable to separate from the disc 2. At the same time, as the pulling force on the pipe increases, the restraining force on the pipe that is about to separate also increases.

[0037] To solve the above technical problems. Figure 2 and Figure 3 A protective cover 5 is fixedly installed on the outside of the shell 1 and at the guide port 4. A guide cylinder 6 for guiding the pipe to be wound on the wheel disc 2 is rotatably installed inside the protective cover 5. A transmission mechanism 7 is fixedly installed on the side surface of the guide cylinder 6 to drive the guide cylinder 6 to swing back and forth along the axial direction of the wheel disc 2.

[0038] The pipe enters and exits the hose reel through the guide cylinder 6. The reel 2 in the hose reel reels the pipe under the drive mechanism 3. When the pipe is guided by the guide cylinder 6 and wound around the reel 2, the transmission mechanism 7 drives the guide cylinder 6 to rotate, causing the end of the guide cylinder 6 located inside the housing 1 to swing along the axial direction of the reel 2.

[0039] When the pipe outlet end of the guide cylinder 6 rotates from the first side plate to the second side plate of the wheel disc 2, the pipe is wound on the annular surface of the wheel disc 2 in sequence from the first side plate to the second side plate along the axis of the wheel disc 2. When the pipe is wound close to the second side plate, the pipe outlet end of the guide cylinder 6 starts to move from the second side plate to the first side plate under the belt of the transmission mechanism 7, so that the unwound pipe is wound on the upper layer of wound pipe again on the wheel disc 2 in sequence until it is wound close to the first side plate. Then the transmission mechanism 7 drives the guide cylinder 6 to swing back again, and this reciprocating process is repeated until all the pipes are wound.

[0040] As a result, during the winding process, the pipe is wound on the wheel 2 layer by layer in sequence. Compared with the irregular winding of the pipe on the wheel 2, the above method, on the one hand, saves the space occupied by the pipe after winding. During the processing of the hose reel, it can effectively reduce the gap between the shell 1 and the wheel 2, that is, reduce the overall volume of the hose reel. On the other hand, it avoids the situation where the pipes are staggered and overlapped when pulling out the pipes, making it difficult to pull out the pipes.

[0041] To facilitate the rotation of the guide cylinder 6. Figure 3 and Figure 4 The transmission mechanism 7 includes a turntable 71 for driving the guide cylinder 6 to rotate. The turntable 71 is fixedly connected to the guide cylinder 6. A guide rod 72 for driving the turntable 71 to rotate is fixedly installed on the turntable 71. A square frame 73 is sleeved on the outside of the guide rod 72. A connecting frame 74 for pushing the square frame 73 to move along the axis of the guide rod 72 is fixedly installed on the outside of the square frame 73. A reciprocating unit 75 for driving the connecting frame 74 to reciprocate is fixedly installed on the side of the connecting frame 74 away from the square frame 73.

[0042] When the pipe is wound around the wheel disc 2 through the guide cylinder 6, the reciprocating unit 75 drives the connecting frame 74 to move, and then drives the square frame 73 to move together. When the connecting frame 74 moves toward the guide rod 72, the inner wall of the square frame 73 generates a thrust on the guide rod 72. After the guide rod 72 is thrust, it slides along the inner wall of the square frame 73. On the other hand, the guide rod 72 drives the turntable 71 to rotate around the axis of the turntable 71, thereby driving the guide cylinder 6 to rotate, so that the pipe outlet end of the guide cylinder 6 moves from the first side plate of the wheel disc 2 to the second side plate of the wheel disc 2, so that the pipes passing through the guide cylinder 6 are arranged in sequence and wound around the wheel disc 2.

[0043] Because the reciprocating unit 75 drives the connecting frame 74 to move back and forth, when the end of the guide cylinder 6 rotates to the point closest to the first side plate of the wheel disc 2, the reciprocating unit 75 drives the connecting frame 74 to move away from the guide rod 72, and then drives the guide rod 72 through the square frame 73 to slide in the square frame 73 on the one hand, and on the other hand, the guide rod 72 drives the turntable 71 to rotate back, that is, the pipe outlet end of the guide cylinder 6 rotates from the second side plate of the wheel disc 2 to the first side plate, thereby realizing the rotation operation of the guide cylinder 6.

[0044] To make the guide cylinder 6 move back and forth. Figure 5 and Figure 6 The reciprocating unit 75 includes a sleeve 751, a connecting rod 752 is sleeved at the axis of the sleeve 751, the connecting rod 752 is fixedly connected to the connecting frame 74, a reciprocating double helical groove 753 is opened on the inner wall of the sleeve 751, a strip slider 754 is slidably installed in the reciprocating double helical groove 753, the strip slider 754 is rotatably connected to the side surface of the connecting rod 752, a pressure plate 755 for limiting the rotation of the square frame 73 is fixedly installed on the wheel disc 2, and a driving member 76 for driving the sleeve 751 to rotate is fixedly installed on the side of the sleeve 751 away from the connecting rod 752.

[0045] The driving member 751 drives the sleeve 751 to rotate, and the double helical groove in the sleeve 751 rotates together. Because the square frame 73 is restricted by the pressure plate 755 and cannot rotate, it can only move in a straight line, so that the connecting frame 74 and the connecting rod 752 can also move in a straight line. Under the interaction force between the inner wall of the double helical groove and the strip slider 754, the strip slider 754 first slides in the first spiral groove, thereby driving the connecting frame 74 connected to the connecting rod 752 to move in the direction of the guide rod 72. When it moves to the top of the first spiral groove, the strip slider 754 enters the second spiral groove. In the process of sliding in the second spiral groove, the strip slider 754 drives the connecting frame 74 connected to the connecting rod 752 to move in the direction away from the guide rod 72 until it moves to the top of the second spiral groove and thus enters the first spiral groove, and so on reciprocatingly, thereby achieving the effect of driving the connecting frame 74 to move back and forth during the unidirectional rotation of the sleeve 751.

[0046] Since the winding machine is in an external environment for a long time, in a relatively harsh environment, if there are too many power drive sources, the probability of failure is high, and the cost of multiple drive sources is high.

[0047] For further information, see Figure 3 and Figure 5 The driving member 76 includes a driven gear disc 761, the end face of the driven gear disc 761 is fixedly connected to the end face of the sleeve 751, and the end face of the wheel disc 2 is fixedly mounted with a driving gear disc 762 coaxial with the wheel disc 2. A toothed belt 763 is commonly provided on the driving gear disc 762 and the driven gear disc 761.

[0048] During the rotation of the wheel disc 2, the driving gear disc 762 will drive the driven gear disc 761 to rotate through the toothed belt 763, and then drive the sleeve 751 to rotate together, thereby reducing the driving source. The rotation of the wheel disc 2 drives the rotation of the sleeve 751, thereby realizing the back and forth swing of the guide cylinder 6.

[0049] The number of spiral turns of the reciprocating double helical groove 753 is the same as the number of turns of the single-layer pipe on the wheel 2. When the reciprocating double helical groove 753 rotates one circle, the guide cylinder 6 rotates a unit angle a.

[0050] like Figure 7 As shown, when the strip slider 754 moves to the first end face of the reciprocating double helical groove 753, the strip slider 754 drives the guide rod 72 to move to the first limit position through the connecting rod 752, the connecting frame 74 and the frame 73. At this time, the pipe fitting at the outlet of the guide cylinder 6 is wound around the first end face of the wheel 2; Figure 8 As shown, when the strip slider 754 moves to the second end face of the reciprocating double helical groove 753, the strip slider 754 drives the guide rod 72 to the second extreme position through the connecting rod 752, the connecting frame 74 and the frame 73. At this time, the pipe fittings at the pipe outlet of the guide cylinder 6 are wound onto the second end face of the wheel 2. As a result, when the wheel 2 winds up the pipe fittings, the pipe fittings are wound around the wheel 2 in sequence and uniformly, and the pipe fittings of each layer of adjacent windings are closely connected, so that the pipe fittings are tightly connected.

[0051] At the same time, as the pipe is unwound, the guide cylinder 6 guides the pipe unwinding again to avoid unwinding confusion.

[0052] To avoid the pipe fittings being wound up and the pipe fittings being wounded, the guide cylinder 6 swings and the pipe fittings outside are also swung back and forth during the swinging process.

[0053] See also Figure 3 and Figure 5 A sealing plate 8 is fixedly mounted on the end of the protective cover 5, and a pipe inlet hole is opened in the middle of the sealing plate 8.

[0054] The pipes enter and exit through the pipe inlet hole, thus preventing the pipes from swinging back and forth when they are retracted or extended.

[0055] To prevent the pipe from being attached to garbage after being dragged on the ground and brought into the pipe winding machine during winding.

[0056] See also Figure 5 A cleaning cylinder 10 for the pipe to pass through is installed on the side of the sealing plate 8 away from the guide port 4, and a brush is fixedly installed on the inner wall of the cleaning cylinder 10.

[0057] When the pipe passes through the cleaning cylinder 10 and is wound by the wheel 2, debris in the external environment such as rotten leaves and weeds attached to the surface of the pipe are cleaned by the brush in the cleaning cylinder 10 when passing through the cleaning cylinder 10, thereby preventing the debris from entering the interior of the winding machine with the pipe and causing inconvenience in cleaning.

[0058] During the pipe winding process, if the wheel 2 rotates too fast and the pipe is not under tension, the pipe has its own elasticity and plasticity, so the wound pipes are not tightly fitted together, leaving gaps, making the space occupied by the wound pipes larger.

[0059] To avoid the above technical problems. Please refer to Figure 9 A friction unit is provided inside the guide cylinder 6.

[0060] The friction unit contacts and rubs against the surface of the pipe, providing a certain friction force during the winding process of the pipe, so that the pipe is subjected to tension during the winding process, making the wound pipes tighter.

[0061] See also Figure 9 The friction unit includes a plurality of friction wheels 61 in contact with the pipe. The friction wheels 61 are arranged in the guide cylinder 6. The rotation direction of the friction wheels 61 is the same as the moving direction of the pipe.

[0062] When the pipe is wound along the guide cylinder 6 toward the wheel disc 2, the pipe passes through the friction wheel 61, which generates friction on the surface of the pipe, thereby providing pre-tightening force for the pipe when it is wound on the wheel disc 2, so that the pipes wound on the wheel disc 2 are wound more tightly and the gaps are smaller.

[0063] The side surface of the friction wheel 61 is an inwardly concave arc surface, and the inwardly concave arc surface is in contact with the surface of the pipe fitting.

[0064] By setting the axial side surface of the friction wheel 61 as an inwardly concave arc surface, the contact area between the friction wheel 61 and the pipe is increased, thereby increasing the friction force.

[0065] See also Figure 9 and Figure 10 A square hole 62 is provided in the guide cylinder for placing the friction wheel 61, and a slide 63 is installed on the friction wheel 61 and in the through hole. A limit block 64 is fixedly installed on the inner wall of the square hole 62 to prevent the slide 63 from escaping from the square hole 62. A compression spring 65 is fixedly installed on the end of the slide 63 away from the friction wheel 61, and a top block 66 is fixedly installed on the end of the compression spring 65 away from the slide 63. The end of the top block 66 away from the compression spring 65 is located on the outside of the guide cylinder 6, and a threaded cylinder 67 is threadedly connected to the outside of the guide cylinder 6. The inner wall of the threaded cylinder 67 abuts against the top block 66, and the diameter of the inner wall of the threaded cylinder 67 gradually increases along the direction of winding of the pipe.

[0066] In the initial state, the pipe passes through the guide cylinder 6 and contacts the friction wheel 61, thereby pushing the friction wheel 61 to squeeze the compression spring 65, causing the compression spring 65 to be compressed internally, thereby providing abutting pressure between the friction wheel 61 and the pipe, thereby generating friction during the movement of the pipe. Then, according to the friction required by the pipe, when it is necessary to increase the friction force on the pipe, the threaded cylinder 67 can be rotated to move the threaded cylinder 67 in the direction of pipe winding, so that the inner wall of the threaded cylinder 67 applies pressure to the top block 66, causing the top block 66 to move into the guide cylinder 6, thereby compressing the compression spring 65, increasing the internal elastic potential energy of the compression spring 65, and thereby increasing the abutting pressure between the friction wheel 61 and the pipe, thereby increasing the friction when the pipe moves. Reversing the threaded cylinder 67 can reduce the friction between the pipe and the friction wheel 61, thereby realizing free adjustment of the tension when the pipe is wound, so that the tension can be adjusted according to actual needs to avoid the tension being too loose or too tight.

[0067] See also Figure 9 and Figure 12 A positioning frame is rotatably installed at the axis center of the side surface of the friction wheel 61, and the positioning frame is fixedly connected to the guide cylinder 6. The side surfaces of the friction wheel 61 are respectively coated with adjacent granular layers 611 and smooth layers 612. A first clamping block 613 and a second clamping block 614 are fixedly installed on one of the axial side surfaces of the friction wheel 61. During the winding process of the pipe fitting, the pipe fitting drives the friction wheel 61 to rotate in the first direction, and the friction wheel 61 drives the first clamping block 613 to abut against the positioning frame. At this time, the granular layer 611 on the surface of the friction wheel 61 contacts the surface of the pipe fitting. During the unwinding process of the pipe fitting, the pipe fitting drives the friction wheel 61 to rotate in the second direction, and the friction wheel 61 drives the second clamping block 614 to abut against the positioning frame. At this time, the smooth layer 612 on the surface of the friction wheel 61 contacts the surface of the pipe fitting.

[0068] When the pipe is wound by the wheel 2, the pipe moves in the guide cylinder 6 toward the wheel 2. When the pipe contacts the friction wheel 61, the friction wheel 61 is driven to rotate, so that the particle layer 611 on the friction wheel 61 rotates until it contacts the surface of the pipe. At this time, the first clamping block 613 abuts against the positioning frame, limiting the rotation of the friction wheel 61. As a result, during the winding process of the pipe, the particle layer 611 on the friction wheel 61 generates friction on the pipe, thereby generating a pre-tightening force when the pipe is wound.

[0069] When the pipe is pulled manually to unwind, that is, when the pipe moves in the guide cylinder 6 in the direction away from the wheel disc 2, the pipe contacts the friction wheel 61, driving the smooth layer 612 on the friction wheel 61 to contact the surface of the pipe. At the same time, the second clamping block 614 abuts against the positioning frame to limit the rotation of the friction wheel 61. At this time, the smooth layer 612 contacts the pipe, and the friction force generated on the pipe is small, thereby reducing the reaction force of the friction unit on the pipe when the pipe is pulled out, which is more conducive to the removal of the pipe.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

Claims

1. A hose reel, comprising a housing (1), a wheel (2) disposed in the housing (1), a driving mechanism (3) provided on the wheel (2) for providing power for winding the wheel (2), a guide opening (4) for the entry and exit of a pipe being opened on one side of the housing (1), characterized in that: A protective cover (5) is fixedly installed on the outside of the housing (1) and located at the guide opening (4); a guide cylinder (6) for guiding the pipe to be wound around the wheel (2) is rotatably installed in the protective cover (5); a transmission mechanism (7) for driving the guide cylinder (6) to swing back and forth along the axial direction of the wheel (2) is fixedly installed on the side surface of the guide cylinder (6); The transmission mechanism (7) includes a turntable (71) fixed on the guide cylinder (6), a guide rod (72) fixedly mounted on the turntable (71), a square frame (73) slidably mounted on the side surface of the guide rod (72) for pushing the guide rod (72) to move, a connecting frame (74) fixedly mounted on the outside of the square frame (73), and a reciprocating unit (75) for driving the connecting frame (74) to reciprocate along the axial direction of the wheel disc (2) fixedly mounted on a side of the connecting frame (74) away from the square frame (73); The reciprocating unit (75) includes a sleeve (751), a connecting rod (752) is sleeved on the axis of the sleeve (751), the connecting rod (752) is fixedly connected to the connecting frame (74), a reciprocating double helical groove (753) is opened on the inner wall of the sleeve (751), a strip slider (754) is slidably installed in the reciprocating double helical groove (753), a shaft is connected between the strip slider (754) and the connecting rod (752) for common rotation, and a driving member (76) for driving the sleeve (751) to rotate is fixedly installed on the side of the sleeve (751) away from the connecting rod (752); The driving member (76) includes a driven toothed disc (761), the driven toothed disc (761) is fixedly connected to the sleeve (751), the wheel disc (2) is fixedly mounted with a driving toothed disc (762) coaxial with the wheel disc (2), and a toothed belt (763) is provided on both the driving toothed disc (762) and the driven toothed disc (761).

2. The hose reel according to claim 1, wherein: When the strip slider (754) moves to the first end face of the reciprocating double helical groove (753), the strip slider (754) drives the guide rod (72) to move to the first limit position through the connecting rod (752), the connecting frame (74) and the shape frame (73), and the pipe fitting at the pipe outlet of the guide cylinder (6) is wound to the first end face of the wheel disc (2); when the strip slider (754) moves to the second end face of the reciprocating double helical groove (753), the strip slider (754) drives the guide rod (72) to move to the second limit position through the connecting rod (752), the connecting frame (74) and the shape frame (73), and the pipe fitting at the pipe outlet of the guide cylinder (6) is wound to the second end face of the wheel disc (2).

3. The hose reel according to claim 1, wherein: A friction unit is provided inside the guide cylinder (6), and the friction unit comprises a plurality of friction wheels (61) in contact with the pipe fitting. The friction wheels (61) are provided inside the guide cylinder (6), and the rotation direction of the friction wheels (61) is the same as the movement direction of the pipe fitting.

4. The hose reel according to claim 3, wherein: The circumferential side surface of the friction wheel (61) is an inwardly concave arc surface, and the inwardly concave arc surface is in contact with the surface of the pipe.

5. The hose reel according to claim 3, wherein: A square hole (62) for placing a friction wheel (61) is provided in the guide cylinder (6), a slide (63) is installed on the friction wheel (61) and in the through hole, a compression spring (65) is fixedly installed on one end of the slide (63) away from the friction wheel (61), and a top block (66) is fixedly installed on one end of the compression spring (65) away from the slide (63), a threaded cylinder (67) is connected to the outer side of the guide cylinder (6) by a thread, the inner wall of the threaded cylinder (67) is in contact with the top block (66), and the contact surface between the threaded cylinder (67) and the top block (66) is an inclined surface.

6. The hose reel according to claim 5, characterized in that A limiting block (64) is fixedly mounted on the inner wall of the square hole (62) to prevent the slide (63) from escaping from the square hole (62).

7. The hose reel according to claim 3, wherein: A positioning frame is rotatably mounted on the axis center of each axial side of the friction wheel (61), and the positioning frame is fixedly connected to the guide cylinder (6). The circumferential side of the friction wheel (61) is respectively coated with adjacent particle layers (611) and smooth layers (612). A first clamping block (613) and a second clamping block (614) are fixedly mounted on one axial side of the friction wheel (61). During the pipe winding process, the pipe drives the friction wheel (61) to rotate in a first direction, and the friction wheel (61) drives the first clamping block (613) to abut against the positioning frame. At this time, the particle layer (611) on the surface of the friction wheel (61) contacts the surface of the pipe. During the pipe unwinding process, the pipe drives the friction wheel (61) to rotate in a second direction, and the friction wheel (61) drives the second clamping block (614) to abut against the positioning frame. At this time, the smooth layer (612) on the surface of the friction wheel (61) contacts the surface of the pipe.

Images