Stepless width adjusting mechanism for pipe coiling device and pipe coiling device

Abstract

The invention generally relates to the field of pipe reelers, in particular to a stepless width adjusting mechanism. The stepless width adjusting mechanism comprises a driving part, a driven part and a transmission mechanism; the driving part is configured to receive driving force required by rotation of the pipe coiling device; the driven part is configured to be capable of synchronously generating rotation when the driving part rotates, and the effective width of the pipe coiling device is limited by the driven part and the driving part; the transmission mechanism is disposed between the driving portion and the driven portion, and is configured to transmit the driving force from the driving portion to the driven portion, and is also configured to be able to infinitely change the effective width between the driving portion and the driven portion by telescoping. The stepless width adjusting mechanism can greatly improve the application range of the pipe coiling device, and the universality of the pipe coiling device is improved.

Description

Technical Field

Background Art

[0003] A Chinese patent 202421758624.5 of the applicant proposes a hose reel with adjustable width, which adopts fixed gear adjustment. The threaded holes on the first hose reel frame and the second hose reel frame are aligned, and fixed bolts are tightened in the threaded holes to achieve width adjustment. Due to the limited number of axially distributed threaded holes, the hose reel can only be adjusted at a limited number of width dimensions and cannot well adapt to various width types of frames and various width types of courtyard wall brackets, so the application range is limited.

Summary of the Invention

[0005] According to a first aspect of the present disclosure, an infinitely variable width adjustment mechanism for a hose reel is provided. The infinitely variable width adjustment mechanism includes: A driving part, a driven part, and a transmission mechanism; the driving part is configured to receive the driving force required for the rotation of the hose reel; the driven part is configured to be able to rotate synchronously when the driving part rotates, and together with the driving part, defines the effective width of the hose reel; the transmission mechanism is arranged between the driving part and the driven part, and is configured to transfer the driving force from the driving part to the driven part, and is also configured to be able to change the effective width between the driving part and the driven part infinitely by telescoping; the transmission mechanism includes a group of multiple driving rods and driven rods corresponding to the driving rods one by one, at least one of the driving rods and the driven rods is a hollow structure, so that the two rod bodies are sleeved with each other, and the driving rod and the driven rod are telescopically connected; one end of the driving rod is fixedly connected to the driving part, and one end of the driven rod is fixedly connected to the driven part. In this way, the distance between the driving part and the driven part, that is, the effective width of the hose reel, can be adjusted by adjusting the telescopic length between the driving rod and the driven rod of the transmission mechanism. Since the telescopic position between the driving rod and the driven rod can be adjusted arbitrarily within a certain length, the width adjustment of this mechanism has the characteristic of being infinitely variable.

[0006] In some embodiments, the parts of the driving rod connected to the driving part and the parts of the driven rod connected to the driven part are both solid columns. In this way, the end stiffness of the connection between the driving rod and the driving part and the end stiffness of the connection between the driven rod and the driven part are strengthened, so that the rod-shaped transmission mechanism can ensure sufficient torque transmission.

[0007] In some embodiments, the driving rod and the driven rod are circumferentially distributed along the rotation axis of the hose reel. In this way, it is ensured that when the hose is wound on the hose reel, it has a regular circular contour support effect, so that the rod-shaped transmission mechanism can ensure sufficient torque transmission.

[0008] In some embodiments, the number of the driving rods and the driven rods is at least 3 respectively, forming a stable connection structure with the ability to transmit driving torque. In this way, the rod-shaped transmission mechanism can ensure sufficient torque transmission.

[0009] In some embodiments, the driving part includes a driving disk and a driving bracket, and the driving bracket is arranged at the center of the driving disk. In this way, the rotation stiffness of the driving disk is improved, so that the driving disk can ensure sufficient torque transmission.

[0010] In some embodiments, the driven part includes a driven disk and a water pipe joint, the water pipe joint is arranged at the center of the driven disk, and the water pipe joint can rotate relative to the driven disk while maintaining sealing. In this way, it is convenient to connect one end of the hose to the water pipe joint.

[0011] In a second aspect, a hose reel is provided, which includes the stepless width adjustment mechanism as described above, as well as a fixing member, an elastic limiting member, and a hand crank. The fixing member is located on both sides of the stepless width adjustment mechanism and is used to fixedly install the stepless width adjustment mechanism on a bracket with a certain width; the elastic limiting member is located on the fixing member on one side of the hose reel and is used to limit the rotational freedom of the stepless width adjustment mechanism. The stepless width adjustment mechanism of the present invention can be used for any suitable hose reel.

[0012] In some embodiments, the hose reel further includes a hand crank, and the end is fixedly connected to the driving part.

[0013] It should be understood that the content of the present invention is not intended to identify the key or essential features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Through the following description, other features of the present disclosure will become easy to understand.

Description of the Drawings

[0015] Figure 1 A front view of the stepless width adjustment mechanism according to a schematic embodiment of the present disclosure is shown; Figure 2 A perspective view of the hose reel according to a schematic embodiment of the present disclosure is shown; Figure 3 A front view of the stepless width adjustment mechanism according to another schematic embodiment of the present disclosure is shown; Figure 4 A front view of the hose reel according to a schematic embodiment of the present disclosure is shown; Figure 5 A perspective view of the hose reel according to a schematic embodiment of the present disclosure is shown; In the figures: 1 - driving part, 101 - driving disc, 102 - driving bracket, 2 - driven part, 201 - driven disc, 201a - limiting hole, 202 - water pipe joint, 202a - water outlet, 202b - water inlet, 3 - transmission mechanism, 301 - driving rod, 302 - driven rod, 3a - solid column, 4 - fixing member, 5 - hand crank, 6 - elastic limiting member, 7 - axis of rotation.

[0016] In each of the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

Detailed Embodiments

[0018] As used herein, the term "comprising" and variations thereof mean open-ended inclusion, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "an exemplary embodiment" and "an embodiment" mean "at least one exemplary embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "upper", "lower", "front", "rear", etc., which indicate placement or positional relationships, are all based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the principles of the present disclosure, rather than indicating or implying that the elements referred to must have a specific orientation, be constructed or operate in a specific orientation, and thus should not be construed as a limitation on the present disclosure.

[0019] Some exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings in conjunction with exemplary embodiments.

[0020] Figure 1 An infinitely variable width adjustment mechanism according to some illustrative embodiments of the present disclosure is shown. As Figure 1As shown in the figure, the stepless width adjustment mechanism includes: a driving part 1, a driven part 2, and a transmission mechanism 3; the driving part 1 is configured to receive the driving force required for the rotation of the hose reel. It should be understood that the source of the driving force is not limited. For example, manual driving and / or electric driving can both be used as the power source in specific implementations; the driven part 2 is configured to rotate synchronously when the driving part rotates, and together with the driving part 1, defines the effective width L of the hose reel. The purpose of the synchronous rotation of the driven part 2 and the driving part 1 is to ensure that when the hose reel is working, the driving part 1 and the driven part 2 that limit the width of the hose reel will not cause the hose to be wound chaotically due to the speed difference; the transmission mechanism 3 is arranged between the driving part 1 and the driven part 2, and is configured to transmit the driving force from the driving part 1 to the driven part 2, and is also configured to be able to change the effective width L between the driving part 1 and the driven part 2 infinitely by telescoping; the transmission mechanism 3 includes a group of multiple driving rods 301 and driven rods 302 corresponding to the driving rods 301 one by one. At least one of the driving rods 301 and the driven rods 302 is a hollow structure, so that the two rod bodies are sleeved with each other, and the driving rods 301 and the driven rods 302 are telescopically connected. In one embodiment, the driving rod 301 is set as a hollow structure, that is, in the shape of a tube. At this time, the driven rod 302 penetrates into the inner hole of the driving rod 301, and the inner hole surface of the driving rod 301 and the outer cylindrical surface of the driven rod 302 form a clearance fit. In order to ensure smooth telescopic sliding and stable transmission of the driving force and support stiffness after the fit, the fit clearance is selected to be 0.05 - 0.1 mm on one side; it should be understood that in other embodiments, the driven rod 302 can also be set as a hollow structure, and the driving rod 301 can be inserted into the inner hole of the driven rod 302, or both the driving rod 301 and the driven rod 302 are set as hollow structures to reduce weight; in addition, in some other embodiments, other dimensional tolerances can also be selected for the fit clearance. The appropriate fit clearance is related to the specifically selected rod diameter and rod length; one end of the driving rod 301 is fixedly connected to the driving part 1, and one end of the driven rod 302 is fixedly connected to the driven part 2.

[0021] Continue to refer to Figure 1, in one embodiment, the portions of the driving rod 301 connected to the driving part 1 and the portions of the driven rod 302 connected to the driven part 2 are both solid columns 3a. There are various ways to fixedly connect the solid columns 3a to the driving rod 301 and / or the driven rod 302, including but not limited to welding, interference press-fitting or integral molding. Threaded holes are provided on the solid columns 3a, and the driving part 1 and / or the driven part 2 are fixedly connected to the solid columns 3a through screws; through testing, the connection is very stable and can effectively provide support force, and the cooperation of multiple rod bodies can effectively transmit the driving force. The lengths of the driving rod 301 and the driven rod 302 can be set in various ways, which means defining several specific specifications for the stepless width adjustment mechanism, and each specification covers a certain width adjustment range, so as to adapt to the requirements of cleaning machines or fixed brackets with different scale ranges in the market.

[0022] Figure 2 FIG. shows a perspective view of a hose reel according to an exemplary embodiment of the present disclosure. As Figure 2 shown, in some embodiments, the driving rod 301 and the driven rod 302 are circumferentially distributed along the rotation axis 7 of the hose reel. In this way, it is ensured that when the hose is wound around the hose reel, it has a regular circular contour support effect, so that the rod-shaped transmission mechanism can ensure sufficient torque transmission.

[0023] Continuing to refer to Figure 2 , in one embodiment, the numbers of the driving rod 301 and the driven rod 302 are at least 3 respectively, Figure 2 and as shown in

[0024] Figure 3 FIG. shows a front view of a stepless width adjustment mechanism according to another exemplary embodiment of the present disclosure. As Figure 1 and Figure 3 shown, in one embodiment, the driving part 1 includes a driving disk 101 and a driving bracket 102. The center of the driving disk 101 has an opening, and the driving bracket 102 is arranged at the center of the driving disk 101. A part of the driving bracket 102 passes through the driving disk 101 and is welded on one side or both sides to achieve a firm connection. In some other embodiments, the driving bracket 102 can also be press-fitted into the center of the driving disk 102 in an interference manner. In this way, the rotational stiffness of the driving disk is improved, so that the driving disk can ensure sufficient torque transmission.

[0025] Referring to Figure 1 , Figure 3 and Figure 4, in one embodiment, the driven part 2 includes a driven disk 201 and a water pipe joint 202. The center of the driven disk 201 has an opening. The water pipe joint 202 includes two parts. One end is a water outlet 202a for connecting a hose, and the other end is a water inlet 202b with rotational sealing. The water inlet 202b is realized by a rotary joint, and the water outlet 202a is a fixed joint. The fixed joint passes through the central hole of the driven disk 201 and is then welded on one side or both sides of the driven disk, so that the housing of the water pipe joint 202 is fixed on the driven disk 201. It can be understood that in some other embodiments, the fixed joint can also be fixed on the driven disk 201 by other fixing methods, such as by interference press-fitting.

[0026] The stepless width adjustment mechanism of the present invention can be used for any suitable hose reel. The stepless width adjustment mechanism can be configured as a part of the hose reel and can be used for any suitable hose reel. As Figures 4 - 5 shown, in some embodiments, the hose reel further includes a fixing member 4, an elastic limiting member 6, and a hand crank 5. The fixing member 4 is located on both sides of the stepless width adjustment mechanism and is used to fixedly install the stepless width adjustment mechanism on a bracket with a certain width, such as cleaning vehicles of different size specifications. Although the frame widths are inconsistent, since the stepless width adjustment mechanism can be arbitrarily telescoped within a certain range, the fixing members 4 on both sides can still be fixed on both sides of the frame; the elastic limiting member 6 is located on the fixing member 4 on one side of the hose reel and is used to limit the rotational freedom of the stepless width adjustment mechanism; in some embodiments, the elastic limiting member 6 has a spring-preloaded pin, and the rotation is limited by passing the pin through a through hole provided on the driving part 1 or the driven part 2. The pin can also be locked so that it cannot protrude from the elastic limiting member 6, thereby releasing the rotational restriction of the stepless width adjustment mechanism; Refer to Figures 3 - 5 , in some embodiments, the hose reel further includes a hand crank 5, the end of which is fixedly connected to the driving bracket 102 on the driving part 1. By shaking the hand crank, power is transmitted to the driving disk 101. It should be understood that the setting of the hand crank 5 on the hose reel is a manually driven configuration, and the hose reel can also be connected to the driving bracket 102 by setting a motor drive method to achieve electric drive.

[0027] Fix the fixing parts 4 on both sides to the mounting bracket according to the actual required mounting width, such as the fixing bracket on the cleaning locomotive frame or the wall. The driving rod 301 and the driven rod 302 in the transmission mechanism 3 will infinitely extend and contract adaptively according to the mounting width to achieve the matching of the mounting width of the hose reel. One end of the hose, usually a water pipe, is fixedly connected to the water outlet 202a. Since the transmission mechanism 3 in the infinitely variable width adjustment mechanism is a multi-group telescopic tubular structure, the water pipe naturally leads out from the gap of the tubular structure to the outside of the transmission mechanism 3, and then rotate the driving part 1, and the water pipe will wind along the transmission mechanism 3. The external water supply is connected to the water inlet 202b. When the driving disc 101, the transmission mechanism 3 and the driven disc 201 rotate, the water outlet 202a rotates together with the water pipe. That is to say, there is no pulling between the water outlet 202a and the end of the water pipe during rotation, and the connection is stable. At the same time, since the water inlet 202 is realized by a rotary joint, it can remain fixed at this time. That is to say, there is no pulling between the water inlet 202 and the end of the hose connecting to the water source, and the connection is stable.

[0028] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. On the contrary, the specific features and acts described above are merely example forms for implementing the claims.

[0029] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An infinitely variable width adjustment mechanism for a hose reel, characterized in that , including: - A driving part, configured to receive the driving force required for the rotation of the reel. - A driven part, configured to be able to rotate synchronously when the driving part rotates, and together with the driving part, defines the effective width of the reel. And A transmission mechanism, arranged between the driving part and the driven part, and configured to transfer the driving force from the driving part to the driven part, and at the same time is also configured to be able to change the effective width between the driving part and the driven part infinitely by telescoping. Wherein the transmission mechanism includes a group of multiple driving rods and driven rods corresponding to the driving rods one by one. At least one of the driving rods and the driven rods is a hollow structure, so that the two rod bodies are sleeved with each other, and the driving rod and the driven rod are telescopically connected; one end of the driving rod is fixedly connected to the driving part, and one end of the driven rod is fixedly connected to the driven part.

2. The stepless width adjustment mechanism according to claim 1, wherein , the part of the driving rod connected to the driving part and the part of the driven rod connected to the driven part are both solid columns.

3. The stepless width adjustment mechanism according to claim 1, characterized in that , the driving rod and the driven rod are circumferentially distributed along the rotation axis of the reel.

4. The stepless width adjustment mechanism according to claim 1, characterized in that , the number of the driving rods and the driven rods is at least 3 respectively, constituting a stable connection structure with the ability to transmit driving torque.

5. The stepless width adjustment mechanism according to any one of claims 1-4, characterized in that The driving part includes a driving disc and a driving bracket, and the driving bracket is arranged at the center of the driving disc.

6. The stepless width adjustment mechanism according to claim 5, characterized in that, The driven part includes a driven disc and a water pipe joint, and the water pipe joint is arranged at the center of the driven disc, and the water pipe joint can rotate relative to the driven disc while maintaining sealing.

7. A hose reel, characterized in that, Including The stepless width adjustment mechanism according to any one of claims 1-6, and - A fixing part, configured to be located on both sides of the stepless width adjustment mechanism, for fixedly installing the stepless width adjustment mechanism on a bracket with a certain width. - An elastic limiting part, located on the fixing part on one side of the reel, for restricting the rotational freedom of the stepless width adjustment mechanism.

8. The hose reel according to claim 7, characterized in that, It further includes a hand crank, the end of which is fixedly connected to the driving part.

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