Dragging device

Abstract

The utility model discloses a dragging device which comprises a winch module, a pulley module and a power source. The capstan module comprises a capstan and a driving assembly which are in transmission connection, and a twisted rope is wound on the capstan; the pulley module comprises at least one movable pulley, the twisted rope is wound on the movable pulley, and the movable pulley is used for being connected with equipment to be dragged; the power source is electrically connected with the driving assembly. According to the technical scheme, the miniaturization level of the dragging device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of traction devices, in particular to a towing device. Background Art

[0002] The winch is an essential self-protection and traction device for vehicles and ships. It can be used for rescue or self-rescue in harsh environments such as deserts, snow, beaches, swamps and muddy roads, and can also be used for operations such as obstacle removal and towing objects. In order to meet the needs of towing large equipment to be towed, large-diameter winches or multi-drum winches are usually used, which to a certain extent increases the overall volume and weight, which is not conducive to use in extreme environments. Utility Model Content

[0003] The main purpose of the utility model is to provide a towing device, aiming to improve the miniaturization level of the towing device.

[0004] To achieve the above-mentioned purpose, the towing device proposed by the utility model comprises:

[0005] The winch module comprises a winch and a drive assembly connected in a transmission manner, wherein a winch rope is wound around the winch;

[0006] A pulley module, comprising at least one movable pulley, on which the rope is wound, and the movable pulley is used to connect the equipment to be towed; and

[0007] A power source is electrically connected to the driving assembly.

[0008] Optionally, the movable pulley is connected with n rope segments for bearing the weight of the equipment to be towed, and μG1=nF1, n≥2, wherein F1 is the tension applied by the winch on the winch rope, G1 is the total weight of the equipment to be towed, and μ is the friction coefficient between the equipment to be towed and the equipment placement surface;

[0009] And / or, the pulley module further comprises at least one fixed pulley, and the fixed pulley is fixedly arranged relative to the winch;

[0010] and / or, the total pulling force of the towing device is F2, 0.9t≤F2≤15t;

[0011] And / or, the winch module further includes a rope guide for guiding the winding of the winch rope on the winch.

[0012] Optionally, the value of n is 2, 3, 5, 7, 9 or 11.

[0013] Optionally, the driving assembly includes a motor and a labor-saving mechanism that are transmission-connected, the labor-saving mechanism is connected to the winch, and the motor is connected to the power supply.

[0014] Optionally, the labor-saving mechanism is configured as a first gear and a second gear that are meshed with each other, the first gear is coaxially driven with the winch, the second gear is connected to the motor, and the size of the first gear is larger than that of the second gear.

[0015] Optionally, an external power supply is also included, and the external power supply is used to charge the power supply.

[0016] Optionally, the power source is configured as a lithium battery, and / or the external power source is configured as a solid-state battery; and / or,

[0017] The power source is provided with a first insulation layer and / or a first heating device, and the first heating device is electrically connected to the external power source; and / or, the first insulation layer comprises a stacked aerogel layer and an XPS extruded board; and / or,

[0018] The external power supply is provided with a second insulation layer and / or a second heating device, and the second heating device is electrically connected to the external power supply; and / or, the second insulation layer includes a stacked aerogel layer and an XPS extruded board; and / or,

[0019] When the external power supply supplies power to the first heating device and the second heating device at the same time, the power supply duration of the external power supply is T, and 500h≤T≤800h.

[0020] Optionally, the total weight of the winch module, the pulley module and the power supply is G2, 5kg≤G2≤8kg; and / or,

[0021] The weight of the external power supply is G3, 3kg≤G3≤4kg.

[0022] Optionally, the power power supply and / or the external power supply is connected to the vehicle power supply via a vehicle inverter.

[0023] Optionally, the power supply and / or the external power supply is connected to the mains via a global voltage charger.

[0024] In the technical solution of the utility model, the towing device includes a winch module, a pulley module and a power supply, wherein the winch and the movable pulley are connected by a rope, and the winch transmission is connected to a driving component. Driven by the driving component, the winch rotates and provides a pulling force to the rope. Since the rope is wound around the movable pulley, the movable pulley moves linearly close to the winch under the action of the rope, thereby realizing the towing of the towed equipment. At the same time, the tension applied by the winch to the rope produces an effect of doubling the tension, which can not only improve the miniaturization level of the towing device, but also ensure the reliable pulling of the towed equipment by the towing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the towing device of the utility model;

[0027] Figure 2 for Figure 1 A schematic structural diagram of another embodiment of the middle pulley module;

[0028] Figure 3 It is a structural diagram of the labor-saving mechanism;

[0029] Figure 4 A schematic diagram of the structure of connecting the power supply and / or external power supply to the vehicle power supply;

[0030] Figure 5 It is a structural diagram of the connection between the power supply and / or external power supply and the mains.

[0031] Description of Figure Numbers:

[0032] Label name Label name 10 Winch module 41 Power supply 11 winch 411 First insulation layer 12 Twisted Rope 42 External power supply 21 Motor 421 Second insulation layer 22 First Gear 43 Worldwide Voltage Charger 23 Second gear 44 Car Inverter 31 Movable pulley 45 Car power supply 32 Fixed pulley 50 Equipment to be towed

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions, taking "A and / or B as an example", including solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] The utility model provides a towing device.

[0039] Reference Figures 1 to 5 In an embodiment of the utility model, the towing device includes a winch module 10, a pulley module and a power supply 41; the winch module 10 includes a transmission-connected winch 11 and a driving assembly, and a winch rope 12 is wound around the winch 11; the pulley module includes at least one movable pulley 31, and the movable pulley 31 is wound around the winch rope 12, and the movable pulley 31 is used to connect the towed equipment 50; the power supply 41 is electrically connected to the driving assembly. Such an arrangement helps to improve the miniaturization level of the towing device.

[0040] The winch 11 is fixed to the mounting surface of the winch 11 by means of, for example, a winch 11 frame, a fixing rope, etc. The mounting surface of the winch 11 can be configured as an outer shell of the winch 11, a vehicle, the ground or a tree, wherein one end of a winch rope 12 is fixed to the mounting surface of the winch 11, and the other end passes around the movable pulley 31 and is wound around the winch 11. Due to the separate arrangement of the movable pulley 31 and the winch 11, when the power supply 41 supplies power to the driving component, the driving component drives the winch 11 to rotate, so that the winch rope 12 is wound around the winch 11, and drives the movable pulley 31 to move linearly relative to the winch 11, thereby achieving the towing of the towed equipment 50. Due to the cooperation between the movable pulley 31 and the winch rope 12, under the same pulling demand and towing distance, the pulling force applied by the winch 11 to the winch rope 12 produces an effect of doubling the pulling force, which helps to meet the miniaturization level of the towing device, is convenient for transportation and application, and can also ensure the reliable pulling of the towing device on the towed equipment 50. The number of movable pulleys 31 mainly depends on the weight of the towed equipment 50 and the environmental factors of the location, which mainly include but are not limited to the size of the space, the friction to be overcome, etc. The winch 11 and the drive assembly are integrated into a whole, which is convenient for assembly and transmission coordination, and can also realize the miniaturization of the winch module 10.

[0041] In the technical solution of the utility model, the towing device includes a winch module 10, a pulley module and a power supply 41, wherein the winch 11 and the movable pulley 31 are connected by a rope 12, and the winch 11 is transmission-connected with a driving component. Driven by the driving component, the winch 11 rotates and provides a pulling force to the rope 12. Since the rope 12 is wound around the movable pulley 31, the movable pulley 31 makes a linear motion close to the winch 11 under the action of the rope 12, thereby achieving the towing of the towed equipment 50. At the same time, the tension applied by the winch 11 to the rope 12 produces an effect of doubling the tension, which can not only improve the miniaturization level of the towing device, but also ensure the reliable pulling of the towed equipment 50 by the towing device.

[0042] Specifically, in one embodiment, the movable pulley 31 is connected with n rope segments for bearing the weight of the equipment to be towed 50, and μG1=nF1, n≥2, wherein F1 is the tension applied by the winch 11 on the rope 12, G1 is the total weight of the equipment to be towed 50, and μ is the friction coefficient between the equipment to be towed 50 and the equipment placement surface; specifically, by utilizing the n rope segments acting on the movable pulley 31, the tension applied to the rope 12 can be reduced to 1 / n times the friction force that the equipment to be towed 50 needs to overcome, thereby helping to reduce the tension output, thereby reducing the output of the drive assembly and the power supply 41, and improving the miniaturization level of the towing device.

[0043] Furthermore, the total pulling force of the towing device is F2, 0.9t≤F2≤15t; that is, the total pulling force can overcome the friction force corresponding to the towed equipment 50 to ensure the reliable towing of the towed equipment 50, wherein the specific value of the total pulling force F2 can be 1.8t, 2.7t, 3.6t, 4.5t, 5.4t, 6.3t, 7.2t, 8.1t, 9t, 9.9t, 10.8t, 12.7t, 13.6t, 14.5t, 15t, etc., and because F2=μG1=nF1, the total pulling force F2 is n times the pulling force F1, which is convenient for determining the number of movable pulleys 31, the winding length of the rope 12 and the moving distance of the towed equipment 50.

[0044] Optionally, in one embodiment, the pulley module further includes at least one fixed pulley 32, which is relatively fixedly arranged with the capstan 11 and used to change the direction of the rope 12, and cooperates with the arrangement of the movable pulley 31 to increase the effort saving to a certain extent; wherein, the fixed pulley 32 can be installed on the capstan 11 frame or the mounting surface of the capstan 11 to ensure the relative stillness between the fixed pulley 32 and the capstan 11, so as to ensure the normal movement of the movable pulley 31 and the reliable winding of the rope 12 by the capstan 11. The number of fixed pulleys 32 mainly depends on the number of movable pulleys 31.

[0045] Furthermore, the value of n is 2, 3, 5, 7, 9 or 11. When the value of n is 2, Figure 1 As shown, one movable pulley 31 is provided, and two rope segments are provided on the movable pulley 31. Of course, in other embodiments, one movable pulley 31 is provided, and one fixed pulley 32 is provided, and two rope segments are provided on the movable pulley 31, which can also achieve a 2-fold force increase in pulling force; when n is 3, such as Figure 2 As shown, one movable pulley 31 is provided, two fixed pulleys 32 are provided, and three rope segments are provided on the movable pulley 31, so as to achieve a three-fold force increase in pulling force. Similarly, when towing the same to-be-towed equipment 50, in order to further reduce the pulling force F1, multiple movable pulleys 31 are provided, and the total number of rope segments on each movable pulley 31 corresponds to the multiple by which the total pulling force is reduced.

[0046] Optionally, in one embodiment, the winch module 10 further includes a rope guide to guide the winding of the rope 12 on the winch 11, so that the rope 12 can be regularly wound on the winch 11, reducing the risk of rope disorder and rope biting, and effectively protecting and extending the service life of the winch 11 and the rope 12. The rope guide can be installed on the winch 11 frame or the mounting surface of the winch 11 to ensure that the rope guide does not rotate when the winch 11 rotates, thereby ensuring the function of the rope guide.

[0047] Optionally, in one embodiment, the driving assembly includes a transmission-connected motor 21 and a labor-saving mechanism, wherein the labor-saving mechanism is connected to the winch 11, and the motor 21 is connected to the power supply 41, thereby improving the power utilization rate of the power supply 41 and ensuring the normal operation of the winch 11.

[0048] Combined with reference Figure 1 and Figure 3 In one embodiment, the labor-saving mechanism is configured as a first gear 22 and a second gear 23 that are meshed with each other. The first gear 22 is coaxially driven with the winch 11, and the second gear 23 is connected to the motor 21. The size of the first gear 22 is larger than the size of the second gear 23. Then, under the driving action of the motor 21, the second gear 23 drives the first gear 22 to rotate, and the first gear 22 drives the winch 11 to rotate, thereby realizing the winding of the winch rope 12. The meshing transmission of the first gear 22 and the second gear 23 helps to improve the accuracy of the transmission. Also, because the size of the second gear 23 is smaller than that of the first gear 22, a larger torque can be provided to the winch 11 through the first gear 22, which plays a labor-saving role and satisfies the pulling of the winch rope 12 on the towed equipment 50.

[0049] The first gear 22 can be connected to the end surface of the winch 11, such as Figure 1 As shown, the first gear 22 is arranged on the side of the winch 11 away from the winch rope 12, and the connection method between the first gear 22 and the winch 11 includes but is not limited to welding, bonding, and integral molding; the first gear 22 can also be configured as a toothed structure formed on the circumference of the winch 11, which helps to achieve the miniaturization of the winch module 10. However, in other embodiments, the labor-saving mechanism can be configured as a crank mechanism.

[0050] In order to avoid insufficient power of the power supply 41, in one embodiment, the towing device also includes an external power supply 42, and the external power supply 42 is used to charge the power supply 41. By adding the external power supply 42, the external power supply 42 can charge the power supply 41, thereby ensuring the continuity of the power supply 41 to the motor 21 and improving the reliability of the towing device.

[0051] Optionally, in one embodiment, the power source 41 is configured as a lithium battery, which may be a liquid lithium battery, so as to provide a higher charging and discharging power, ensure the normal use of the motor 21, and the cost of the lithium battery is low, which helps to save costs; of course, in other embodiments, the lithium battery may be a solid-state battery.

[0052] Optionally, in one embodiment, the external power supply 42 is configured as a solid-state battery. Due to the inherent characteristics of the solid-state battery, the solid-state battery has higher safety in use and can work in a larger temperature range. Therefore, in a low-temperature environment, the solid-state battery has good low-temperature performance and capacity, thereby facilitating power supply 41 in a low-temperature environment. In addition, compared with liquid batteries, the assembly volume of solid-state batteries is small and easy to carry.

[0053] In order to prevent the power supply 41 from being unable to work due to being in a low temperature environment such as -40°C, the power supply 41 is provided with a first insulation layer 411 and / or a first heating device, and the first heating device is electrically connected to the external power supply 42; specifically, in one embodiment, the power supply 41 is provided with a first insulation layer 411, and the first insulation layer 411 wraps the power supply 41, which can effectively reduce the heat loss of the power supply 41 and reduce the impact of the low temperature environment on the power supply 41. In other embodiments, the first insulation layer 411 can be arranged inside the power supply 41. ; In another embodiment, a first heating device is provided outside the power supply 41, and the first heating device is connected to the external power supply 42, and then power is supplied to the first heating device through the external power supply 42, and the heat generated by the first heating device acts on the power supply 41, thereby reducing the impact of the low temperature environment on the power supply 41 and ensuring the normal use of the power supply 41; in yet another embodiment, a first thermal insulation layer 411 and a first heating device are provided outside the power supply 41 at the same time, and the first thermal insulation layer 411 can be used to lock the heat generated by the first heating device, thereby further reducing the impact of the low temperature environment on the power supply 41.

[0054] Specifically, the first thermal insulation layer 411 includes stacked aerogel layers and XPS extruded boards, wherein the aerogel layer and the XPS extruded board are connected by bonding or the like, and are connected to the power supply 41 through the aerogel layer or the XPS extruded board, and the whole covers the outside of the power supply 41, or the aerogel layer and the XPS extruded board are separately arranged inside and outside the power supply 41; however, in other embodiments, the first thermal insulation layer 411 only includes the aerogel layer or the XPS extruded board, or the second thermal insulation layer 421 includes a thermal insulation board made of other thermal insulation materials.

[0055] In order to prevent the external power supply 42 from being unable to work due to being in a low temperature environment, the external power supply 42 is provided with a second insulation layer 421 and / or a second heating device, and the second heating device is electrically connected to the external power supply 42; specifically, in one embodiment, the external power supply 42 is provided with a second insulation layer 421, and the second insulation layer 421 wraps the external power supply 42, which can effectively reduce the heat loss of the external power supply 42 and reduce the impact of the low temperature environment on the external power supply 42. In other embodiments, the second insulation layer 421 can be set inside the external power supply 42; in another embodiment, the second insulation layer 421 can be set inside the external power supply 42. In an embodiment, a second heating device is provided outside the external power supply 42, and the second heating device is connected to the external power supply 42, and then power is supplied to the second heating device through the external power supply 42, and the heat generated by the second heating device acts on the external power supply 42, thereby reducing the impact of the low temperature environment on the external power supply 42 and ensuring the normal use of the external power supply 42; in another embodiment, a second thermal insulation layer 421 and a second heating device are provided outside the external power supply 42 at the same time, and the second thermal insulation layer 421 can be used to lock the heat generated by the second heating device, thereby further reducing the impact of the low temperature environment on the external power supply 42.

[0056] Specifically, the second thermal insulation layer 421 includes stacked aerogel layers and XPS extruded boards; wherein the aerogel layer and the XPS extruded board are connected by bonding or the like, and are connected to the external power supply 42 through the aerogel layer or the XPS extruded board, and the whole covers the outside of the external power supply 42, or the aerogel layer and the XPS extruded board are separately arranged inside and outside the external power supply 42; however, in other embodiments, the second thermal insulation layer 421 only includes the aerogel layer or the XPS extruded board, or the second thermal insulation layer 421 includes a thermal insulation board made of other thermal insulation materials.

[0057] In addition, in order to ensure the reliable operation of the towing device, the first heating device and the second heating device can be set to stop working when the temperature is higher than the first temperature value, and start working when the temperature is lower than the second temperature value. Specifically, the first temperature value can be 15°C and the second temperature value can be 10°C.

[0058] Optionally, in one embodiment, when the external power supply 42 supplies power to the first heating device and the second heating device at the same time, the power supply time of the external power supply 42 is T, 500h≤T≤800h. Since the external power supply 42 is configured as a solid-state battery, specifically a ternary polymer lithium battery, which has large capacity and high safety, the external power supply 42 can supply power to the first heating device and the second heating device at the same time, and the power supply time can be as long as 500h to 800h, which can not only ensure the power supply of the power supply 41 to the motor 21, but also reduce the impact of the low temperature environment on the power supply 41 and the external power supply 42, which helps to improve the reliability of the towing device and the wide range of application environments.

[0059] Optionally, in one embodiment, the total weight of the winch module 10, the pulley module and the power supply 41 is G2, 5kg≤G2≤8kg; and / or the weight of the external power supply 42 is G3, 3kg≤G3≤4kg; this facilitates the transportation and application of the towing device, and improves the miniaturization level of the towing device while ensuring the reliable application of the towing device.

[0060] Reference Figure 4 In one embodiment, the power power supply 41 and / or the external power supply 42 are connected to the vehicle power supply 45 via the vehicle inverter 44, and then the existing vehicle power supply 45 is used to power the power power supply 41 and / or the external power supply 42, and the vehicle inverter 44 is used to switch to ensure that the DC power of the vehicle power supply 45 can be converted into AC power for use by the external power supply 42, which is convenient, fast, and safe.

[0061] In order to adapt to the power supply standards of various countries, the power supply voltage of various countries is roughly 100V~240V. Figure 5 As shown, in one embodiment, the power source 41 and / or the external power source 42 are connected to the mains via a global voltage charger 43 to adapt to the power supply standards of various countries, thereby meeting the charging requirements of the power source 41 and / or the external power source 42. Specifically, the global voltage charger 43 can be connected to a charging pile or a common socket.

[0062] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A towing device, characterized in that: include: The winch module comprises a winch and a driving assembly which are in transmission connection, and a winch rope is wound around the winch; The pulley module comprises at least one movable pulley and at least one fixed pulley, the movable pulley is wound with the twisted rope, the movable pulley is used to connect the to-be-towed equipment, the fixed pulley is relatively fixedly arranged with the winch, and the fixed pulley is connected with the movable pulley through the twisted rope; as well as A power source electrically connected to the drive assembly; The movable pulley is connected to n rope segments for bearing the weight of the equipment to be towed, and satisfies μG1=nF1, n≥2, wherein F1 is the tension applied by the winch on the winch rope, G1 is the total weight of the equipment to be towed, and μ is the friction coefficient between the equipment to be towed and the equipment placement surface.

2. The towing device according to claim 1, characterized in that: The total pulling force of the towing device is F2, 0.9t≤F2≤15t; And / or, the winch module further includes a rope guide for guiding the winding of the winch rope on the winch.

3. The towing device according to claim 2, characterized in that: The value of n is 2, 3, 5, 7, 9 or 11.

4. The towing device according to claim 1, characterized in that: The driving assembly comprises a motor and a labor-saving mechanism which are transmission-connected, the labor-saving mechanism is connected to the winch, and the motor is connected to the power source.

5. The towing device according to claim 4, characterized in that: The labor-saving mechanism is configured as a first gear and a second gear that are meshed with each other, the first gear is coaxially driven with the winch, the second gear is connected to the motor, and the size of the first gear is larger than that of the second gear.

6. The towing device according to claim 1, characterized in that: It also includes an external power supply, which is used to charge the power supply.

7. The towing device according to claim 6, characterized in that: The power source is configured as a lithium battery, and / or the external power source is configured as a solid-state battery; and / or, The power source is provided with a first insulation layer and / or a first heating device, and the first heating device is electrically connected to the external power source; and / or, the first insulation layer comprises a stacked aerogel layer and an XPS extruded board; and / or, The external power supply is provided with a second insulation layer and / or a second heating device, and the second heating device is electrically connected to the external power supply; and / or, the second insulation layer includes a stacked aerogel layer and an XPS extruded board; and / or, When the external power supply supplies power to the first heating device and the second heating device simultaneously, the power supply duration of the external power supply is T, and 500h≤T≤800h.

8. The towing device according to claim 7, characterized in that: The total weight of the winch module, the pulley module and the power supply is G2, 5kg≤G2≤8kg; and / or, The weight of the external power supply is G3, 3kg≤G3≤4kg.

9. The towing device according to claim 6, characterized in that: The power source and / or the external power source are connected to the vehicle power source via a vehicle inverter.

10. The towing device according to claim 6, characterized in that: The power supply and / or the external power supply is connected to the mains via a global voltage charger.

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