Outdoor carrying equipment with pressure-sensitive sensor

Abstract

The utility model provides outdoor carrying equipment with a pressure-sensitive sensor. The outdoor carrying equipment comprises a carriage assembly, the carriage assembly comprises a carriage body and wheels, and the wheels are connected to the carriage body; the pull rod assembly comprises a handle and a pull rod which are connected, and the end, away from the handle, of the pull rod is rotationally connected to the carriage body; the sensing assembly comprises a pressure-sensitive sensor and a movable part, the movable part is connected to one of the handle and the pull rod, and the pressure-sensitive sensor is arranged adjacent to the movable part. The sensing assembly can directly detect the pulling force of a user on the handle, after a controller of the outdoor carrying equipment receives a detection signal, complex trigonometric function conversion does not need to be carried out according to the rotating angle of the pull rod, the data processing flow is simplified, and the system complexity is reduced; and meanwhile, the accuracy and response speed of the outdoor carrying equipment for detecting the acting force of the user are improved, so that the use experience of the user on the outdoor carrying equipment is effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of carrier tools, and in particular to an outdoor carrier with a pressure-sensitive sensor. Background Art

[0002] As an essential tool for outdoor camping, outdoor transport equipment is lightweight, foldable and easy to carry, providing great convenience for campers.

[0003] However, when faced with complex and changeable outdoor terrain, such as in mountains, beaches, muddy terrain, etc., the towing process of outdoor transportation equipment is often laborious and inefficient. Utility Model Content

[0004] In view of this, the present application provides an outdoor transport device with a pressure-sensitive sensor, which enhances the convenience of the moving process through sensor detection and intelligent assistance, allowing users to drag and control the outdoor transport device more easily.

[0005] The outdoor transport equipment includes:

[0006] A carriage assembly, the carriage assembly comprising a carriage body and wheels, the wheels being connected to the carriage body;

[0007] A pull rod assembly, the pull rod assembly comprising a handle and a pull rod connected to each other, wherein one end of the pull rod away from the handle is rotatably connected to the carriage body; and

[0008] The sensor assembly includes a pressure-sensitive sensor and a movable part, wherein the movable part is connected to one of the handle or the pull rod, and the pressure-sensitive sensor is arranged adjacent to the movable part.

[0009] The sensor assembly is accommodated in the handle, and the movable part is connected to the handle. When the user exerts force on the handle, the movable part can squeeze the pressure-sensitive sensor.

[0010] The sensor assembly further comprises a fixing member, the fixing member is fixed to one end of the pull rod adjacent to the handle, the fixing member has a first receiving groove on one side adjacent to the pull rod, and the pressure-sensitive sensor and the movable member are at least partially received in the first receiving groove;

[0011] One side of the pressure-sensitive sensor is arranged adjacent to the movable part, and the other side of the pressure-sensitive sensor abuts against the fixed part. When the handle moves relative to the pull rod, the movable part moves relative to the fixed part and presses the pressure-sensitive sensor.

[0012] Wherein, the sensor assembly further includes an adhesive member, which is disposed between the pressure-sensitive sensor and the fixing member and is used to fix the pressure-sensitive sensor to the fixing member.

[0013] The fixing member comprises a fixing body, a first extending portion and a second extending portion, wherein the first extending portion and the second extending portion are arranged on two opposite sides of the fixing body;

[0014] The sensor assembly further includes a first elastic member and a second elastic member, wherein the first elastic member is sandwiched between the first extension portion and the movable member, and the second elastic member is sandwiched between the second extension portion and the movable member.

[0015] Wherein, the sensor assembly further includes a buffer member, the movable member has a second receiving groove on a side adjacent to the pressure-sensitive sensor, the buffer member is partially disposed in the second receiving groove, and the buffer member is partially exposed from the second receiving groove.

[0016] Wherein, the movable part includes a connected main body, a first end and a second end, the pressure-sensitive sensor is arranged adjacent to the main body, the first end and the second end are arranged on both sides of the main body, and the handle has a first limiting part and a second limiting part, the first limiting part is used to limit the first end, and the second limiting part is used to limit the second end.

[0017] Wherein, along the arrangement direction of the handle and the pull rod, the width of the first end is greater than the width of the main body, and the width of the second end is greater than the width of the main body.

[0018] The pull rod has a slot at one end adjacent to the fixing member, and the fixing member has a protrusion at one side adjacent to the pull rod, and the protrusion is engaged with the surface of the pull rod where the slot is arranged.

[0019] The pull rod includes a connecting portion and a main body which are fixedly connected, one side of the connecting portion is clamped on the handle, the other side of the connecting portion is fixedly connected to the main body, and the main body is rotatably connected to the carriage body on a side away from the connecting portion.

[0020] The outdoor carrying device of this embodiment includes a carriage assembly, a pull rod assembly, and a sensing assembly. The sensing assembly includes a pressure-sensitive sensor and a movable member. The movable member is connected to one of the handle or the pull rod, and the pressure-sensitive sensor is disposed adjacent to the movable member. When the user needs to pull the outdoor carrying device, simply pulling or pushing the handle will drive the movable member to apply pressure to the pressure-sensitive sensor, enabling the pressure-sensitive sensor to quickly and accurately output a detection signal and real-time feedback the pulling force value or pushing force value of the user on the handle. Compared with the comparative embodiment in which the sensing assembly of the traditional outdoor carrying device is disposed at the rotating shaft position, the sensing assembly provided in this embodiment can directly and real-time detect the pulling force of the user on the handle, thereby avoiding the error introduced by the change in the rotation angle of the pull rod relative to the carriage body. Since the sensing assembly directly detects the pulling force of the handle, after receiving the detection signal, the controller of the outdoor carrying device does not need to perform complex trigonometric function conversions based on the rotation angle of the pull rod, thereby simplifying the data processing process and reducing the system complexity. At the same time, it also improves the accuracy and response speed of the outdoor carrying device in detecting the user's acting force, effectively enhancing the user's experience of using the outdoor carrying device. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of the outdoor carrying device according to an embodiment of the present application;

[0023] Figure 2 is a partial structural schematic diagram of the outdoor carrying device according to an embodiment of the present application;

[0024] Figure 3 is Figure 2 a partial enlarged structural schematic diagram of the outdoor carrying device provided in at position a;

[0025] Figure 4 is a three-dimensional exploded schematic diagram of a partial structure of the pull rod assembly according to an embodiment of the present application;

[0026] Figure 5 is a bottom view structural schematic diagram of the fixing member according to an embodiment of the present application;

[0027] Figure 6 is a three-dimensional exploded schematic diagram of a partial structure of the pull rod assembly according to another embodiment of the present application;

[0028] Figure 7It is a partial structural schematic diagram of the drawbar assembly according to an embodiment of the present application;

[0029] Figure 8 It is a partial structural schematic diagram of the drawbar assembly according to another embodiment of the present application;

[0030] Figure 9 It is a three-dimensional exploded schematic diagram of the partial structure of the drawbar assembly according to still another embodiment of the present application;

[0031] Figure 10 It is Figure 2 Another partial enlarged structural schematic diagram of the outdoor carrying device provided in [a] at position a.

[0032] Explanation of reference numerals:

[0033] 1 - Outdoor carrying device, 10 - Carriage assembly, 20 - Drawbar assembly, 30 - Sensing assembly, 11 - Carriage body, 12 - Wheel, 21 - Handle, 22 - Drawbar, 23 - First fastener, 24 - Second fastener, 25 - Third fastener, 31 - Pressure - sensitive sensor, 32 - Movable part, 33 - Fixed part, 34 - Adhesive part, 35 - First elastic part, 36 - Second elastic part, 37 - Buffer part, 211 - First limiting part, 212 - Second limiting part, 213 - Third limiting part, 221 - Card slot, 222 - Connection part, 223 - Main body part, 321 - Second receiving groove, 322 - Body part, 323 - First end, 324 - Second end, 331 - First receiving groove, 332 - Fixed body, 333 - First extension part, 334 - Second extension part, 335 - Protrusion part, 2221 - First sub - connection part, 2222 - Second sub - connection part. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] The terms "first", "second", etc. in the specification and claims of the present application and the above - mentioned accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0036] References to "embodiments" or "implementations" in this document mean that the specific features, structures, or characteristics described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment each time, nor are they independent or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] Before introducing the technical solution of the present application, the technical problems in the related art will be introduced in detail.

[0038] Outdoor transportation equipment provides great convenience for campers with its characteristics such as being lightweight, easy to fold, and portable. However, when facing complex and changeable outdoor terrains, such as in mountainous areas, beaches, muddy areas, etc., the towing process of traditional outdoor transportation equipment is often laborious and inefficient. Therefore, outdoor transportation equipment with electric assistance can greatly improve the convenience of camping.

[0039] Most traditional outdoor transportation equipment detects the pulling force of users on the outdoor transportation equipment by setting a force sensor at the rotating shaft at the bottom of the towing rod. When the sensor detects that the pulling force exceeds the preset range, the motor controller will control the rotation speed of the wheels to assist and help the outdoor transportation equipment move smoothly.

[0040] However, since the sensor is fixed at the steering position, when the handrail of the outdoor transportation equipment is laid down, the force detected by the sensor is actually the component force in the vertical direction. Therefore, in order to accurately obtain the actual pulling force of the user on the outdoor transportation equipment, it is also necessary to convert the force detected by the sensor through trigonometric functions, resulting in a relatively complex calculation process for the control system.

[0041] In view of this, to solve the above problems, the present application provides an outdoor transportation equipment 1 with a pressure-sensitive sensor. Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 is a schematic structural diagram of the outdoor transportation equipment according to an embodiment of the present application, Figure 2 is a schematic partial structural diagram of the outdoor transportation equipment according to an embodiment of the present application, Figure 3 is Figure 2 a partial enlarged structural diagram of the outdoor transportation equipment provided in Figure 4It is a three-dimensional exploded schematic diagram of the partial structure of the drawbar assembly of an embodiment of the present application. The outdoor transport equipment 1 of this embodiment includes a carriage assembly 10, a drawbar assembly 20 and a sensor assembly 30. The carriage assembly 10 includes a carriage body 11 and a wheel 12, and the wheel 12 is connected to the carriage body 11. The drawbar assembly 20 includes a connected handle 21 and a drawbar 22, and the drawbar 22 is rotatably connected to the carriage body 11 at one end away from the handle 21. The sensor assembly 30 includes a pressure-sensitive sensor 31 and a movable part 32, and the movable part 32 is connected to one of the handle 21 or the drawbar 22, and the pressure-sensitive sensor 31 is arranged adjacent to the movable part 32.

[0042] The outdoor transport device 1 may be, but is not limited to, used for outdoor camping, and can load and transport equipment, food and other items required for camping.

[0043] Optionally, the carriage body 11 includes a foldable body frame, so that the outdoor transport equipment 1 has a folded state and an extended state. When the outdoor transport equipment 1 is in the extended state, that is, when the outdoor transport equipment 1 is in the unfolded state, the carriage body 11 is enclosed to form a receiving space and is used to load items.

[0044] Optionally, the pull rod assembly 20 includes a handle 21 and a pull rod 22 connected to each other, and the pull rod assembly 20 also includes a rotating shaft. The handle 21 serves as a direct point of application for the user to apply force to the outdoor transport device 1, and the user drags the outdoor transport device 1 by applying a pulling force or a pushing force to the handle 21. One end of the pull rod 22 is connected to the handle 21, and the other end of the pull rod 22 is rotatably connected to the carriage body 11 through the rotating shaft. The user can rotate the pull rod 22 within a preset range, so as to flexibly adjust the angle between the pull rod 22 and the carriage body 11, so that the user can find a more comfortable operating angle according to his or her own usage habits, thereby improving the user's usage experience. In addition, by limiting the rotation of the pull rod 22 within a preset range, it is also possible to effectively prevent the pull rod 22 from accidentally falling to the ground after the user lets go, thereby improving the flexibility and safety of the outdoor transport device 1.

[0045] Optionally, the wheel 12 is fixed to one side of the carriage body 11, and there are multiple wheels 12. In the terminology of the present application, "multiple" refers to any number of two or more than two.

[0046] Optionally, the outdoor transport device 1 is an electrically assisted outdoor transport device 1, and the outdoor transport device 1 is provided with a controller and hub motors. The hub motor is connected to one of the wheels 12 or a plurality of wheels 12. For example, the plurality of wheels 12 includes a driving wheel and a driven wheel, and the hub motor is connected to the driving wheel of the outdoor transport device 1. The controller is electrically connected to the hub motor and controls the rotation speed of the driving wheel by controlling the rotation speed and torque output of the motor, thereby providing electric assistance for the movement of the outdoor transport device 1.

[0047] Optionally, the sensing assembly 30 is used to detect the force applied by the user to the handle 21 and obtain a detection signal. The controller is electrically connected to the pressure-sensitive sensor 31, and the controller is used to receive the detection signal and control the rotation speed of the wheel 12 according to the detection signal.

[0048] Specifically, the sensing assembly 30 includes a pressure-sensitive sensor 31 and a movable member 32. The movable member 32 is connected to the handle 21 or the pull rod 22. When the user applies a force, the movable member 32 will generate a corresponding displacement, thereby triggering the pressure-sensitive sensor 31 to generate a detection signal. The controller receives the detection signal from the pressure-sensitive sensor 31 through electrical connection with the pressure-sensitive sensor 31. Based on the detection signal, the controller can analyze the magnitude of the force applied by the user in real time and adjust the rotation speed of the wheel 12 accordingly. For example, when the user needs to decelerate or stop, they only need to slightly reduce the force, and the wheel 12 will decelerate accordingly. Conversely, when acceleration is required, increasing the force is sufficient, thereby improving the operation convenience of the outdoor transport device 1 and enabling the user to move the outdoor transport device 1 more easily on various terrains.

[0049] Preferably, the pressure-sensitive sensor 31 is a thin-film pressure-sensitive resistor, and the thin-film pressure-sensitive resistor is composed of a flexible thin film. The pressure-sensitive sensor 31 generates a change in resistance through the pressure value received by the flexible thin film to detect the pulling force value of the user on the handle 21 and feedback it to the controller to achieve intelligent control of the rotation speed of the wheel 12. Among them, the thin-film pressure-sensitive resistor has strong durability and can maintain a normal and stable working state without being damaged. The thin-film pressure-sensitive resistor can return to its original position naturally after deformation, thereby ensuring the continuity and accuracy of signal output. Moreover, the signal of the thin-film pressure-sensitive resistor is stable and has good linearity, and can provide accurate and reliable data feedback, thereby ensuring the safety and reliability of the outdoor transport device 1.

[0050] Further optionally, the thin-film varistor has a waterproof property, thereby avoiding the situation that the pressure sensor 31 cannot work properly due to the influence of water vapor, reducing the difficulty of waterproof design of the sensing component 30 for the outdoor carrier device 1, and effectively ensuring the safety performance of the outdoor carrier device 1.

[0051] In summary, the outdoor carrier device 1 of the present embodiment includes a carriage component 10, a handlebar component 20, and a sensing component 30. The sensing component 30 includes a pressure sensor 31 and a movable member 32. The movable member 32 is connected to one of the handle 21 or the pull rod 22, and the pressure sensor 31 is disposed adjacent to the movable member 32. When the user needs to pull the outdoor carrier device 1, simply pulling or pushing the handle 21 will cause the handle 21 to drive the movable member 32 to apply a pressure to the pressure sensor 31, so that the pressure sensor 31 can quickly and accurately output a detection signal, and in real time feedback the pulling force value or pushing force value of the user on the handle 21. Compared with the comparative embodiment in which the sensing component 30 of the traditional outdoor carrier device 1 is disposed at the rotating shaft position, the sensing component 30 provided in the present embodiment can directly and real-time detect the pulling force of the user on the handle 21, thereby avoiding the error introduced by the change in the rotation angle of the pull rod 22 relative to the carriage body. Since the sensing component 30 directly detects the pulling force of the handle 21, after receiving the detection signal, the controller of the outdoor carrier device 1 does not need to perform complex trigonometric function conversions according to the rotation angle of the pull rod 22, thereby simplifying the data processing process and reducing the system complexity. At the same time, the accuracy and response speed of the outdoor carrier device 1 for detecting the user's acting force are also improved, effectively enhancing the user's experience of using the outdoor carrier device 1.

[0052] Please refer to again Figure 3 and Figure 4 . The sensing component 30 is received inside the handle 21, and the movable member 32 is connected to the handle 21. When the user exerts a force on the handle 21, the movable member 32 can squeeze the pressure sensor 31.

[0053] Optionally, the handle 21 includes a housing, and the sensing component 30 is received inside the receiving cavity formed by enclosing the housing.

[0054] Optionally, the movable member 32 is snap-connected to the housing of the handle 21. When the user pulls or pushes the handle 21, the movable member 32 will synchronously displace with the handle 21.

[0055] In this embodiment, the sensing assembly 30 is fixed on the handle 21, and the movable member 32 is snap-fitted on the handle 21. When the user pulls or pushes the handle 21, the handle 21 will drive the movable member 32 to squeeze the pressure-sensitive sensor 31, that is, apply pressure to the pressure-sensitive sensor 31, so that the pressure-sensitive sensor 31 outputs a detection signal to feedback the pulling force value of the user on the handle 21. Compared with the traditional embodiment in which the sensing assembly 30 is arranged on the rotating shaft, the sensing assembly 30 arranged on the handle 21 can directly detect the pulling or pushing force of the user on the handle 21, and will not be affected by the rotation angle of the pull rod 22 relative to the carriage body. Therefore, after receiving the detection signal of the sensing assembly 30, the controller does not need to perform trigonometric conversion according to the rotation angle of the pull rod 22 to obtain the direct acting force of the user on the handle 21, so that the detection of the acting force of the outdoor carrying device 1 on the user is more accurate.

[0056] In another alternative embodiment of the present application, the sensing assembly 30 can also be fixed on the pull rod 22, so that the detection of the acting force of the outdoor carrying device 1 on the user is not affected by the rotation angle of the pull rod 22.

[0057] Please refer to Figure 3 、 Figure 4 and Figure 5 , Figure 5 is a schematic bottom view structure of the fixing member in the embodiment of the present application. The sensing assembly 30 further includes a fixing member 33, the fixing member 33 is fixed to one end of the pull rod 22 adjacent to the handle 21, the fixing member 33 has a first receiving groove 331 on a side adjacent to the pull rod 22, and at least part of the pressure-sensitive sensor 31 and the movable member 32 are received in the first receiving groove 331. One side of the pressure-sensitive sensor 31 is adjacent to the movable member 32, and the other side of the pressure-sensitive sensor 31 abuts against the fixing member 33. When the handle 21 moves relative to the pull rod 22, the movable member 32 moves relative to the fixing member 33 and squeezes the pressure-sensitive sensor 31.

[0058] Optionally, at least part of one end of the pull rod 22 adjacent to the handle 21 is received inside the handle 21, the fixing member 33 is received inside the handle 21, and the fixing member 33 is fixed to one end of the pull rod 22 adjacent to the handle 21.

[0059] Optionally, the pressure-sensitive sensor 31 is received in the first receiving groove 331, part of the movable member 32 is received in the first receiving groove 331, and the other part of the movable member 32 extends outside the first receiving groove 331 and is snap-fitted to the housing of the handle 21.

[0060] Optionally, one side of the movable member 32 is disposed adjacent to the pull rod 22, and the other side of the movable member 32 is disposed adjacent to the pressure-sensitive sensor 31. Wherein, the pressure-sensitive sensor 31 is fixed to the surface of the fixing member 33 where the receiving groove is provided, and the movable member 32 is movably arranged relative to the pressure-sensitive sensor 31.

[0061] Optionally, the movable member 32 has a movement range in the first receiving groove 331, and the movable member 32 is movably arranged relative to the fixing member 33, that is, the movable member 32 can be displaced within the first receiving groove 331. In other words, along the arrangement direction of the handle 21 and the pull rod 22, the movable member 32 can move relative to the fixing member 33.

[0062] In this embodiment, when the user applies a pulling force to the handle 21, the handle 21 will drive the movable member 32 to move in a direction away from the pull rod 22, and jointly squeeze the pressure-sensitive sensor 31 with the fixing member 33, that is, apply a pressure to the pressure-sensitive sensor 31, so that the pressure-sensitive sensor 31 outputs a detection signal and feeds back the pulling force value of the user on the handle 21.

[0063] In another optional embodiment of the present application, the sensing assembly 30 may further include two pressure-sensitive sensors 31, that is, a first pressure-sensitive sensor and a second pressure-sensitive sensor, and the first pressure-sensitive sensor and the second pressure-sensitive sensor are arranged back to back on both sides of the movable member 32. Specifically, the first pressure-sensitive sensor is disposed on the side of the movable member 32 away from the pull rod 22, and the second pressure-sensitive sensor is disposed on the side of the movable member 32 adjacent to the pull rod 22. In this embodiment, when the movable member 32 moves in a direction away from the pull rod 22, it can squeeze the first pressure-sensitive sensor, and the first pressure-sensitive sensor can detect the pulling force of the user on the handle 21. When the movable member 32 moves in a direction adjacent to the pull rod 22, it can squeeze the second pressure-sensitive sensor, and the second pressure-sensitive sensor can detect the pushing force of the user on the handle 21. The first pressure-sensitive sensor and the second pressure-sensitive sensor are respectively used to detect the pulling force and the pushing force of the user on the handle 21, so as to improve the detection accuracy of the acting force of the user on the outdoor carrying device 1, so that the outdoor carrying device 1 can better respond to and meet the operation requirements of the user.

[0064] Please refer to again Figure 4 The sensing assembly 30 further includes an adhesive member 34, and the adhesive member 34 is disposed between the pressure-sensitive sensor 31 and the fixing member 33 and is used to fix the pressure-sensitive sensor 31 to the fixing member 33.

[0065] Optionally, the adhesive member 34 is a double-sided adhesive, that is, the adhesive member 34 has a first adhesive surface and a second adhesive surface. The first adhesive surface is used to paste the pressure-sensitive sensor 31, and the second adhesive surface is used to paste the fixing member 33.

[0066] In this embodiment, by disposing the adhesive member 34 between the pressure-sensitive sensor 31 and the fixing member 33, a firm connection between the pressure-sensitive sensor 31 and the fixing member 33 is achieved, which can ensure the stability of the position of the pressure-sensitive sensor 31 when subjected to an external force, thereby improving the working accuracy and reliability of the pressure-sensitive sensor 31.

[0067] Optionally, the pressure-sensitive sensor 31 is electrically connected to the controller of the outdoor transportation device through a wire harness. The wire harness is also fixed to the movable member 32 through a double-sided adhesive, so as to avoid the position of the wire harness from shifting, and to avoid the wire harness from affecting the position accuracy of the pressure-sensitive sensor 31 when it shakes or its position shifts.

[0068] Please refer to Figure 4 and Figure 6 , Figure 6 is a three-dimensional exploded schematic view of a partial structure of a pull rod assembly according to another embodiment of the present application. The fixing member 33 has a fixing body 332, a first extension portion 333 and a second extension portion 334. The first extension portion 333 and the second extension portion 334 are disposed on opposite sides of the fixing body 332. The sensing assembly 30 further includes a first elastic member 35 and a second elastic member 36. The first elastic member 35 is clamped between the first extension portion 333 and the movable member 32, and the second elastic member 36 is clamped between the second extension portion 334 and the movable member 32.

[0069] Optionally, the fixing body 332, the first extension portion 333 and the second extension portion 334 are integrally formed. The fixing body 332 is snap-fitted to the pull rod 22, and the fixing body 332 is provided with the first receiving groove 331 and is used to receive the pressure-sensitive sensor 31. The first extension portion 333 and the second extension portion 334 are disposed on opposite sides of the fixing body 332, and the arrangement direction of the first extension portion 333 and the second extension portion 334 is perpendicular to the arrangement direction of the handle 21 and the pull rod 22.

[0070] Optionally, the first elastic member 35 and the second elastic member 36 are disposed on opposite sides of the fixing body 332. Among them, the first elastic member 35 includes but is not limited to a spring, or a rubber material, or a silicone material, or a plastic material, or other elastic materials, etc. The first elastic member 35 includes but is not limited to a spring, or a rubber material, or a silicone material, or a plastic material, or other elastic materials, etc.

[0071] Preferably, the first elastic member 35 is in a compressed state, and the second elastic member 36 is in a compressed state.

[0072] In this embodiment, the first elastic member 35 is clamped between the first extension portion 333 and the movable member 32, and the second elastic member 36 is clamped between the second extension portion 334 and the movable member 32. When the user pulls the handle 21, the movable member 32 moves along the pull rod 22 in the direction pointing to the fixed member 33. When the movable member 32 presses the pressure-sensitive sensor 31, the movable member 32 also presses the first elastic member 35 and the second elastic member 36, so that the first elastic member 35 and the second elastic member 36 are both in a compressed state. When the user no longer pulls the handle 21 or the force applied by the user to the handle 21 decreases, the first elastic member 35 and the second elastic member 36 can return to their original positions according to their own elasticity, so that the movable member 32 can return smoothly and sensitively. The arrangement of the first elastic member 35 and the second elastic member 36 can not only prevent the movable member 32 from hitting the pressure-sensitive sensor 31 violently and causing damage to the pressure-sensitive sensor 31, but also enable the movable member 32 to return smoothly, that is, the position of the movable member 32 can quickly return to the initial preset position. Moreover, when the outdoor carrying device 1 shakes or vibrates, the arrangement of the first elastic member 35 and the second elastic member 36 can also limit the movable member 32 to prevent the movable member 32 from shaking and accidentally touching the pressure-sensitive sensor 31, thereby preventing the pressure-sensitive sensor 31 from generating false touch signals when the user does not pull the handle 21, and further ensuring the operation safety of the outdoor carrying device 1.

[0073] Please refer to again Figure 4 . The sensing assembly 30 further includes a buffer member 37. The movable member 32 has a second receiving groove 321 on the side adjacent to the pressure-sensitive sensor 31. The buffer member 37 is partially disposed in the second receiving groove 321, and the buffer member 37 is partially exposed outside the second receiving groove 321.

[0074] Preferably, the material of the buffer member 37 is a soft material, such as silica gel, or plastic, or rubber, or other soft materials, etc.

[0075] In this embodiment, the buffer member 37 is partially disposed in the second receiving groove 321, and the buffer member 37 is partially exposed from the second receiving groove 321. That is, the second elastic member 36 is clamped between the pressure-sensitive sensor 31 and the movable member 32, and is used to protect the pressure-sensitive sensor 31 to prevent the movable member 32 from stabbing the pressure-sensitive sensor 31 during movement, ensuring the safety and durability of the pressure-sensitive sensor 31, and effectively extending the service life of the pressure-sensitive sensor 31 and the outdoor transportation device 1.

[0076] Please refer to Figure 7 , Figure 7 FIG. is a partial structural schematic diagram of the pull rod assembly according to an embodiment of the present application. The movable member 32 includes a connected body portion 322, a first end 323, and a second end 324. The pressure-sensitive sensor 31 is disposed adjacent to the body portion 322. The first end 323 and the second end 324 are disposed on both sides of the body portion 322. The handle 21 has a first limiting portion 211 and a second limiting portion 212. The first limiting portion 211 is used to limit the first end 323, and the second limiting portion 212 is used to limit the second end 324.

[0077] Optionally, the body portion 322, the first end 323, and the second end 324 are integrally formed. The pressure-sensitive sensor 31 and the fixing member 33 are both disposed adjacent to the body portion 322. The first end 323 and the second end 324 are disposed on opposite sides of the body portion 322.

[0078] Optionally, both the first limiting portion 211 and the second limiting portion 212 are received inside the handle 21.

[0079] Optionally, along the arrangement direction of the first limiting portion 211 and the second limiting portion 212, the first end 323 and the second end 324 are kept flush.

[0080] Among them, the first limiting portion 211 can be, but is not limited to, fixed to the housing of the handle 21 by means of screw connection, or bonding, or soldering, etc. The first limiting portion 211 can also be integrally formed with the housing of the handle 21. The second limiting portion 212 can be, but is not limited to, fixed to the housing of the handle 21 by means of fasteners, or bonding, or soldering, etc. The first limiting portion 211 can also be integrally formed with the housing of the handle 21.

[0081] In this embodiment, the handle 21 positions the first end 323 of the movable member 32 through the first limiting portion 211 and positions the second end 324 of the movable member 32 through the second limiting portion 212, thereby ensuring the position stability of the movable member 32 inside the handle 21 and avoiding the situation of dislocation caused by insecure clamping.

[0082] Please refer to Figure 7 and Figure 8 , Figure 8 which is a partial structural schematic diagram of the drawbar assembly according to another embodiment of the present application. Along the arrangement direction of the handle 21 and the drawbar 22, the width of the first end 323 is greater than the width of the body portion 322, and the width of the second end 324 is greater than the width of the body portion 322.

[0083] Optionally, the first limiting portion 211 has a first limiting groove for receiving the first end 323. The second limiting portion 212 has a second limiting groove for receiving the second end 324.

[0084] Wherein, the shape of the first end 323 can be, but is not limited to, a cylinder, a square column, or other irregular shapes, etc. The shape of the first limiting groove can be, but is not limited to, a cylinder, a square column, or other irregular shapes, etc. The present application does not make any limitation in this regard. The surface of the first limiting portion 211 forming the first limiting groove surrounds the periphery of the first end 323 and positions the first end 323.

[0085] Wherein, the shape of the second end 324 can be, but is not limited to, a cylinder, a square column, or other irregular shapes, etc. The shape of the second limiting groove can be, but is not limited to, a cylinder, a square column, or other irregular shapes, etc. The present application does not make any limitation in this regard. The surface of the second limiting portion 212 forming the second limiting groove surrounds the periphery of the second end 324 and positions the second end 324.

[0086] Optionally, the width of the first end 323 can be understood as the maximum width value of the first end 323 along the arrangement direction of the handle 21 and the pull rod 22. The width of the second end 324 can be understood as the maximum width value of the second end 324 along the arrangement direction of the handle 21 and the pull rod 22. The width of the body portion 322 can be understood as the maximum width value of the body portion 322 along the arrangement direction of the handle 21 and the pull rod 22. In other words, along the arrangement direction of the handle 21 and the pull rod 22, the first end 323 has a maximum width D1, the second end 324 has a maximum width D2, and the body portion 322 has a maximum width D3. Among them, the width D1 and the width D3 satisfy: D1 > D3. The width D2 and the width D3 satisfy: D2 > D3.

[0087] In this embodiment, the maximum width of the first end 323 is greater than the maximum width of the body portion 322, which can not only increase the contact area between the first end 323 and the first limiting portion 211, so that the first limiting portion 211 limits the first end 323 more firmly, but also enhance the structural strength of the first end 323, avoiding the situation that the first end 323 breaks during long-term use and causes the sensing assembly 30 to fail. The maximum width of the second end 324 is greater than the maximum width of the body portion 322, which can not only increase the contact area between the second end 324 and the second limiting portion 212, so that the second limiting portion 212 limits the second end 324 more firmly, but also enhance the structural strength of the second end 324, avoiding the situation that the second end 324 breaks during long-term use and causes the sensing assembly 30 to fail.

[0088] Optionally, the pull rod assembly includes a first fastener 23 and a second fastener 24. The first fastener 23 passes through the first end 323 and the first limiting portion 211 and fixes the first end 323 to the first limiting portion 211, making the position accuracy of the movable member 32 more accurate. The second fastener 24 passes through the second end 324 and the second limiting portion 212 and fixes the second end 324 to the second limiting portion 212. The arrangement of the first fastener 23 and the second fastener 24 can also prevent both ends of the movable member 32 from shifting in the horizontal position, making the position accuracy of the movable member 32 more accurate.

[0089] Further optionally, the first fastener 23 and the second fastener 24 are arranged to limit the horizontal position of the movable member 32. Meanwhile, in the arrangement direction of the handle 21 and the pull rod 22, there is a movable gap between the first fastener 23 and the movable member 32, and there is also a movable gap between the second fastener 24 and the movable member 32, that is, the movable member 32 can displace within the range of the movable gap. Among them, the movable gap covers the stroke distance required for the movable member 32 to trigger the pressure-sensitive sensor 31 to generate a detection signal.

[0090] Please refer to Figure 9 , Figure 9 which is a perspective exploded view of a partial structure of the pull rod assembly according to another embodiment of the present application. One end of the pull rod 22 adjacent to the fixing member 33 has a slot 221, and one side of the fixing member 33 adjacent to the pull rod 22 has a protruding portion 335, and the protruding portion 335 is snap-fitted to the surface of the pull rod 22 where the slot 221 is provided.

[0091] Among them, the number of the slots 221 can be but is not limited to being single or multiple. In the schematic diagram of this embodiment, taking the number of the slots 221 being multiple as an example for illustration, and multiple slots 221 are arranged on two opposite sides of the pull rod 22.

[0092] Among them, the number of the protruding portions 335 can be but is not limited to being single or multiple. In the schematic diagram of this embodiment, taking the number of the protruding portions 335 being multiple as an example for illustration, and multiple protruding portions 335 are arranged on two opposite sides of the fixing member 33.

[0093] In this embodiment, when the fixing member 33 is assembled to the pull rod 22, the protruding portion 335 is snap-fitted to the surface of the pull rod 22 where the slot 221 is formed. In other words, the fixing member 33 and the pull rod 22 can be snap-fitted to each other through the design of the protruding portion 335 and the slot 221, so that the fixing member 33 and the pull rod 22 can be quickly positioned during the assembly process, and the installation error of the fixing member 33 can be reduced, making the relative position accuracy between the fixing member 33 and the pull rod 22 more accurate, and the structural connection between the fixing member 33 and the pull rod 22 can be more stable.

[0094] Optionally, the pull rod assembly further includes a plurality of third fasteners 25, and the third fasteners 25 pass through the fixing member 33 and the pull rod 22 and are used to fix the fixing member 33 to the pull rod 22, so that the fixing member 33 and the pull rod 22 can be stably connected and fixed.

[0095] Please refer to Figure 10 ,Figure 10 yes Figure 2 The pull rod 22 includes a connecting portion 222 and a main body 223 that are fixedly connected, one side of the connecting portion 222 is clamped to the handle 21, the other side of the connecting portion 222 is fixedly connected to the main body 223, and the main body 223 is rotatably connected to the vehicle body 11 at a side away from the connecting portion 222.

[0096] Optionally, the pull rod assembly further includes a fourth fastener, which is passed through the connecting portion 222 and the main body 223 and is used to fix the connecting portion 222 and the main body 223 .

[0097] Optionally, the main body 223 is a hollow tube, and the connecting portion 222 includes a first sub-connecting portion 2221 and a second sub-connecting portion 2222 that are connected to each other. A portion of the first sub-connecting portion 2221 is accommodated in the main body 223 and is fixedly connected to the main body 223 by the fourth fastener, and another portion of the first sub-connecting portion 2221 is accommodated in the handle 21, and the shell of the handle 21 abuts against the peripheral side of the first sub-connecting portion 2221 and limits the first sub-connecting portion 2221.

[0098] Further optionally, the second sub-connection portion 2222 is disposed on a side of the first sub-connection portion 2221 away from the main body portion 223 , and the fixing member 33 is supported by and fixed to the second sub-connection portion 2222 .

[0099] Optionally, the orthographic projection range of the second sub-connection portion 2222 on the main body portion 223 covers the orthographic projection range of the first sub-connection portion 2221 on the main body portion 223. The handle 21 is further provided with a third limiting portion 213, which is provided on a side of the second sub-connection portion 2222 adjacent to the main body portion 223, and the third limiting portion 213 is arranged around the circumference of the second sub-connection portion 2222 and limits the second sub-connection portion 2222.

[0100] In this embodiment, the pull rod 22 is composed of a main body 223 and a connecting portion 222, and the connecting portion 222 is used to fix and carry the fixing member 33. The handle 21 can limit the connecting portion 222, so that the pull rod 22 and the handle 21 have a stable connection effect, thereby ensuring the structural stability of the pull rod assembly.

[0101] Optionally, there is a gap between the third limiting portion 213 and the second sub-connecting portion 2222. Wherein, the gap covers the travel distance required for the movable member 32 to trigger the pressure-sensitive sensor 31 to generate a detection signal. In other words, along the arrangement direction of the pull rod 22 and the handle 21, the distance value of the gap is greater than the distance value between the movable member 32 and the pressure-sensitive sensor 31. When the user pulls the handle 21 to drive the movable member 32 to move, before the movable member 32 contacts the pressure-sensitive sensor 31, the setting of the gap can prevent the handle 21 from driving the connecting portion 222 to move, thereby preventing the positions of the fixing member 33 and the pressure-sensitive sensor 31 from moving, resulting in the situation that the movable member 32 cannot smoothly contact the pressure-sensitive sensor 31.

[0102] Further optionally, along the arrangement direction of the pull rod 22 and the handle 21, the movable member 32 has a preset travel. Wherein, the preset travel can be understood as that when the moving distance of the movable member 32 is less than or equal to the preset travel, the pressure value applied by the movable member 32 to the pressure-sensitive sensor 31 is within the measurement range of the pressure-sensitive sensor 31. When the moving distance of the movable member 32 is greater than the preset travel, the pressure value applied by the movable member 32 to the pressure-sensitive sensor 31 exceeds the measurement range of the pressure-sensitive sensor 31.

[0103] Preferably, the gap value between the third limiting portion 213 and the second sub-connecting portion 2222 is greater than the spacing value between the movable member 32 and the pressure-sensitive sensor 31. And the gap value between the third limiting portion 213 and the second sub-connecting portion 2222 is less than or equal to the preset travel. When the moving distance of the movable member 32 is greater than the preset travel, the third limiting portion 213 of the handle 21 abuts against the second sub-connecting portion 2222, driving the second sub-connecting portion 2222 and the fixing member 33 to move in a direction away from the main body portion 223, and driving the pressure-sensitive sensor 31 to move in a direction away from the movable member 32, thereby providing safety protection for the pressure-sensitive sensor 31, avoiding the situation that the pressure-sensitive sensor 31 is damaged or its lifespan is reduced due to bearing a force beyond the measurement range, and further ensuring the stable operation of the pressure-sensitive sensor 31, as well as the safety and durability of the outdoor transportation equipment.

[0104] References to "embodiments" or "implementation manners" in this application mean that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The phrase appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application may be combined with other embodiments. In addition, it should also be understood that the features, structures, or characteristics described in each embodiment of this application can be arbitrarily combined with each other without contradiction to form another embodiment that does not depart from the spirit and scope of the technical solution of this application.

[0105] Finally, it should be noted that the above implementation manners are only used to illustrate the technical solutions of this application and not to limit them. Although the technical solutions of this application have been described in detail with reference to the above preferred implementation manners, those of ordinary skill in the art should understand that modifications or equivalent replacements can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. An outdoor transport device having a pressure-sensitive sensor, characterized in that: The outdoor transport equipment includes: A carriage assembly, the carriage assembly comprising a carriage body and wheels, the wheels being connected to the carriage body; A pull rod assembly, the pull rod assembly comprising a handle and a pull rod connected to each other, wherein one end of the pull rod away from the handle is rotatably connected to the carriage body; and The sensor assembly includes a pressure-sensitive sensor and a movable part, wherein the movable part is connected to one of the handle or the pull rod, and the pressure-sensitive sensor is arranged adjacent to the movable part.

2. The outdoor transport equipment according to claim 1, characterized in that: The sensor assembly is accommodated in the handle, and the movable member is connected to the handle. When the user exerts force on the handle, the movable member can squeeze the pressure-sensitive sensor.

3. The outdoor transport equipment according to claim 2, characterized in that: The sensor assembly further comprises a fixing member, the fixing member being fixed to one end of the pull rod adjacent to the handle, the fixing member having a first receiving groove on one side adjacent to the pull rod, the pressure-sensitive sensor and the movable member being at least partially received in the first receiving groove; One side of the pressure-sensitive sensor is arranged adjacent to the movable part, and the other side of the pressure-sensitive sensor abuts against the fixed part. When the handle moves relative to the pull rod, the movable part moves relative to the fixed part and presses the pressure-sensitive sensor.

4. The outdoor transport equipment according to claim 3, characterized in that: The sensor assembly further includes an adhesive member, which is disposed between the pressure-sensitive sensor and the fixing member and is used to fix the pressure-sensitive sensor to the fixing member.

5. The outdoor transport equipment according to claim 3, characterized in that: The fixing member comprises a fixing body, a first extending portion and a second extending portion, wherein the first extending portion and the second extending portion are arranged on two opposite sides of the fixing body; The sensor assembly further includes a first elastic member and a second elastic member, wherein the first elastic member is sandwiched between the first extension portion and the movable member, and the second elastic member is sandwiched between the second extension portion and the movable member.

6. The outdoor transport equipment according to claim 3, characterized in that: The sensor assembly also includes a buffer member, the movable member has a second receiving groove on a side adjacent to the pressure-sensitive sensor, the buffer member is partially disposed in the second receiving groove, and the buffer member is partially exposed from the second receiving groove.

7. The outdoor transport equipment according to claim 2, characterized in that: The movable part includes a connected main body, a first end and a second end, the pressure-sensitive sensor is arranged adjacent to the main body, the first end and the second end are arranged on both sides of the main body, and the handle has a first limiting part and a second limiting part, the first limiting part is used to limit the first end, and the second limiting part is used to limit the second end.

8. The outdoor transport equipment according to claim 7, characterized in that: Along the arrangement direction of the handle and the pull rod, the width of the first end is greater than the width of the main body, and the width of the second end is greater than the width of the main body.

9. The outdoor transport equipment according to claim 3, characterized in that: The pull rod has a slot at one end adjacent to the fixing member, and the fixing member has a protrusion at one side adjacent to the pull rod, and the protrusion is clamped on the surface of the pull rod where the slot is arranged.

10. The outdoor transport equipment according to claim 1, characterized in that: The pull rod includes a connecting portion and a main body that are fixedly connected. One side of the connecting portion is clamped on the handle, and the other side of the connecting portion is fixedly connected to the main body. The main body is rotatably connected to the carriage body at a side away from the connecting portion.

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