Pressurizing pipe coiling device

Abstract

The invention belongs to the technical field of pipe coiling devices, and particularly relates to a pressurizing pipe coiling device which comprises a rack and a coiling block rotationally arranged on the rack, a water inlet pipe is arranged on the rack, a water outlet pipe is connected to the water inlet pipe, the water outlet pipe extends to the periphery of the coiling block and can be wound around the coiling block, and a water pump is arranged between the water inlet pipe and the water outlet pipe. The water pump is arranged in the winding drum and comprises a shell and a driving motor, a pump cavity communicating with the water inlet pipe and the water outlet pipe is formed in the shell, a driving assembly is arranged in the pump cavity, and the driving motor can drive the driving assembly to move; the water inlet pipe is fixedly arranged on the rack and rotationally connected with the winding drum, the water inlet pipe extends into the winding drum and is fixedly connected with the water pump, a controller is arranged on the side face of the rack, the controller is electrically connected with the water pump through a wire, a first wire groove is formed in the water inlet pipe, and the wire extends into the winding drum through the first wire groove and is electrically connected with the water pump; the invention aims to provide the pressurizing pipe coiling device which is convenient for a user to use and long in service life.

Description

Technical Field

[0001] The present invention belongs to the technical field of hose reels, and particularly relates to a pressurized hose reel. Background Art

[0002] A hose reel, also known as a wire winder, hose reel, cable reel, spool, or drum, can wind a pipe or wire around a reel on the hose reel, thus facilitating the storage and collection of the pipe or wire.

[0003] Most common hose reels generally include a frame and a reel. To facilitate use by users, some hose reels are equipped with a water inlet pipe and a water outlet pipe that are rotatably connected. The water inlet pipe is fixed to the frame, and one end of the water outlet pipe can rotate with the reel. For example, a flexible coiling pipe device disclosed in Chinese invention patent CN 202421062326.2 includes a housing with only one side open. A valve cover is provided on the outer side of the middle of the housing. A water delivery pipe is hermetically and rotatably connected to the valve cover. A lining plate is sleeved on the valve cover and fixed to the inner side of the housing. A ratchet is also connected to the inner side of the housing through a tension spring; the valve cover is fixed to one end of the valve body. A spring core is sleeved on the other end of the valve body. A reel is also sleeved on the valve body. A through hole is provided at the shaft part of the reel. A water pipe joint is provided on the valve body. The water pipe joint passes through the through hole and is connected to a hose. The hose is wound and collected on the reel; a winding spring is received on one side of the reel. One end of the winding spring is fixed to the reel, and the other end is fixed to the spring core. A semi-circular toothed plate is fixed to the other side of the reel, and the toothed plate contacts the ratchet.

[0004] In the above structure, the water in the water delivery pipe needs to be driven by the external water pressure. When the hose reel is connected to a faucet, the water flow rate output from the water delivery pipe is very slow, affecting the cleaning work of the user. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a pressurized hose reel that is convenient for users to use and has a long service life.

[0006] The purpose of the present invention is achieved as follows:

[0007] A pressurized hose reel includes a frame and a reel rotatably arranged on the frame. A water inlet pipe is provided on the frame, and a water outlet pipe is connected to the water inlet pipe. The water outlet pipe extends to the outer circumference of the reel and can be wound around the reel. A water pump is arranged between the water inlet pipe and the water outlet pipe. The water pump is arranged in the reel. The water pump includes a housing and a driving motor. A pump chamber communicating the water inlet pipe and the water outlet pipe is provided in the housing. A driving component is arranged in the pump chamber. The driving motor can drive the driving component to move and drive the liquid in the water inlet pipe to be delivered to the water outlet pipe through the driving component;

[0008] The water inlet pipe is fixedly arranged on the frame and is rotationally connected to the reel. The water inlet pipe extends into the reel and is fixedly connected to the water pump. A controller is arranged on the side of the frame. The controller is electrically connected to the water pump through a wire. And a first wire groove is arranged on the water inlet pipe. The wire extends into the reel through the first wire groove and is electrically connected to the water pump.

[0009] The present invention is further arranged as: a water flow hole is arranged in the water inlet pipe. The first wire groove is a hole arranged on one side of the water flow hole and extending along the length direction of the water inlet pipe. And an inlet and an outlet are arranged on the side wall of the water inlet pipe. The wire can penetrate into and out of the first wire groove through the inlet and the outlet.

[0010] The present invention is further arranged as: a convex part is arranged in the water flow hole. The first wire groove is arranged in the convex part.

[0011] The present invention is further arranged as: a positioning hole is arranged on the frame. A positioning part adapted to the positioning hole is arranged on the water inlet pipe. And a second wire groove is connected to the side wall of the positioning hole. The second wire groove extends to one side of the controller. The cooperation of the positioning part and the positioning hole can connect the second wire groove with the first wire groove, so that the wire can pass through the first wire groove and the second wire groove and be connected to the controller.

[0012] The present invention is further arranged as: a fixing hole for installing the controller is arranged on the frame. The second wire groove connects the fixing hole and the positioning hole.

[0013] The present invention is further arranged as: a battery pack is detachably arranged on the frame or the controller. The battery pack is electrically connected to the controller and the driving motor.

[0014] The present invention is further arranged as: a pressure measuring chamber is connected to the water outlet pipe or the pump chamber. An inspection port is arranged on the side wall of the pressure measuring chamber. A strain gauge is arranged on the water pump. The sensing sheet is arranged on one side of the inspection port. The liquid in the pressure measuring chamber can drive the strain gauge to deform. And an emergency stop switch is arranged on the water pump. The emergency stop switch is electrically connected to the controller. The deformation of the strain gauge can trigger the emergency stop switch and control the driving motor to shut down.

[0015] The present invention is further arranged as: a transmission member is arranged between the emergency stop switch and the strain gauge. And an elastic member is connected to the transmission member. The elastic member can drive the transmission member to abut against the strain gauge. The deformation of the strain gauge can drive the transmission member to move and drive the transmission member to trigger the emergency stop switch.

[0016] The present invention is further arranged as: a sensing part is arranged on the strain gauge. The sensing part is slidably arranged in the inspection port. And a driving surface perpendicular to the axial direction of the inspection port is arranged on the sensing part.

[0017] The present invention is further configured such that: a conical deformation portion is provided on the outer periphery of the sensing portion, an annular mounting portion is provided on the outer periphery of the deformation portion, a mounting seat is detachably provided on the pump body, the mounting seat presses the mounting portion against the pump body, and the strain gauge is fixed on the pump body. Moreover, a clearance portion corresponding to the deformation portion is provided on the mounting seat, and the deformation portion can deform and displace into the clearance portion.

[0018] The advantages of the present invention compared with the prior art are as follows:

[0019] 1. A water pump is provided between the water inlet pipe and the water outlet pipe in the present invention. The water pump drives the liquid in the water inlet pipe into the water outlet pipe through a driving motor and a driving assembly, thereby increasing the flow rate and water pressure of the liquid in the water outlet pipe, facilitating the cleaning work of the user, and being convenient for the user to use. Moreover, in this structure, since the water inlet pipe is fixedly connected to the frame and the water pump, and the water inlet pipe is rotatably connected to the reel, it is avoided that the rotation of the water inlet pipe and the water pump during use affects the service life of the reel. Also, since a first wire groove is provided on the water inlet pipe, it is beneficial to avoid the wear of the wire during the rotation of the reel, and it is beneficial to extend the service life of the reel.

[0020] 2. The holes extending along the length direction of the water inlet pipe and the inlets and outlets provided on the side wall of the water inlet pipe in the present invention facilitate the partial hiding of the wire in the first wire groove, avoiding the contact between the wire and the reel during use, avoiding the damage of the wire caused thereby, and being beneficial to extend the service life of the reel. The convex portion provided in the water flow hole facilitates the rotational connection between the water inlet pipe and the reel, being beneficial to reducing the diameter of the water inlet pipe and facilitating the assembly and production of the reel.

[0021] 3. The setting of the positioning holes and the positioning portions in the present invention is beneficial to the positioning connection between the water inlet pipe and the frame, facilitating the stable installation of the water inlet pipe. Moreover, this structure facilitates the connection and cooperation between the first wire groove and the second wire groove, avoiding the misalignment of the first wire groove and the second wire groove and affecting the installation of the wire, and facilitating the assembly and production of the reel. The setting of the fixing holes facilitates the positioning and installation of the controller. Also, since the second wire groove connects the fixing holes and the positioning holes, it is convenient for the wire to pass through the second wire groove and be connected to the controller, facilitating the hidden setting of the wire and avoiding accidental damage to the wire.

[0022] 4. The detachably provided battery pack in the present invention facilitates the disassembly and replacement of the power source, being convenient for the user to use. The pressure measuring chamber and the strain gauge are provided to facilitate the user to detect the hydraulic pressure in the water pump. The structure of the strain gauge is simple, the production cost is low, it is convenient for production and installation, and the service life of the strain gauge is long, being beneficial to extend the service life of the reel.

[0023] 5. The settings of the transmission member and the elastic member in the present invention are beneficial to increasing the damping during the deformation of the strain gauge, facilitating the use and adjustment by the user. Moreover, the setting of the elastic member facilitates the reset of the strain gauge, avoiding plastic deformation of the strain gauge after long-term use, and is conducive to extending the service life of the strain gauge. Since the sensing part is slidably arranged in the inspection port, it is beneficial to the stable deformation of the strain gauge, avoiding the deviation of the sensing part from affecting the deformation of the strain gauge, and facilitating other components to detect the hydraulic pressure in the water pump through the strain gauge. The conical deformation part facilitates the uniform force on the sensing part, reducing the friction between the sensing part and the inspection port during movement, while the annular mounting part and the mounting seat facilitate the strain gauge to seal the inspection port, preventing the liquid in the water pump from leaking through the inspection port. Description of the Drawings

[0024] Figure 1 is the structural schematic diagram of the present invention;

[0025] Figure 2 is the sectional view of the present invention;

[0026] Figure 3 is the sectional view of the connection structure of the water inlet pipe, the water outlet pipe and the water pump in the present invention;

[0027] Figure 4 is the exploded schematic diagram of the connection structure of the frame and the drum in the present invention;

[0028] Figure 5 is the exploded schematic diagram of the connection structure of the water inlet pipe, the water outlet pipe and the water pump in the present invention;

[0029] Figure 6 is the structural schematic diagram of the side plate in the present invention;

[0030] Figure 7 is Figure 6 the partial enlarged view of A in

[0031] Figure 8 is the structural schematic diagram of the limit plate in the present invention;

[0032] Figure 9 is the sectional view of the water inlet pipe in the present invention;

[0033] Figure 10 is the sectional view of the strain gauge mounting structure in the present invention;

[0034] Figure 11 is the structural schematic diagram of the fixing plate in the present invention;

[0035] Figure 12 is the structural schematic diagram of the filter plate in the present invention;

[0036] Figure 13 is the structural schematic diagram of the drive rod in the present invention;

[0037] Figure 14 This is a cross-sectional view of the strain gauge in the present invention.

[0038] The meanings of the reference numerals in the figure are as follows: 1 - frame; 11 - side plate; 12 - connecting plate; 111 - mounting protrusion; 112 - positioning hole; 113 - abutting surface; 114 - fixing hole; 115 - second wire groove; 116 - guiding groove; 2 - reel; 21 - limiting plate; 22 - sleeve; 23 - mounting cavity; 211 - connecting hole; 3 - water inlet pipe; 31 - water outlet pipe; 32 - connector; 33 - positioning part; 311 - water flow hole; 312 - first wire groove; 313 - inlet; 314 - outlet; 315 - protruding part; 4 - water pump; 41 - pump cavity; 42 - driving assembly; 43 - driving motor; 44 - first one-way valve; 45 - filter plate; 46 - fixing plate; 411 - water inlet cavity; 412 - water outlet cavity; 413 - pressure measuring cavity; 414 - inspection opening; 415 - connecting seat; 416 - mounting seat; 417 - moving cavity; 418 - clearance part; 441 - second one-way valve; 451 - liquid inlet hole; 452 - liquid outlet hole; 461 - sealing flange; 5 - driving rod; 51 - articulated rod; 52 - driving part; 53 - end cap; 54 - swing arm; 55 - grip; 6 - controller; 61 - wire; 7 - battery pack; 8 - strain gauge; 81 - sensing part; 82 - deforming part; 83 - mounting part; 84 - driving surface; 9 - transmission part; 91 - elastic part; 92 - emergency stop switch. Specific embodiments

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0040] Refer to Figures 1 to 14 As shown, a pressure - boosting hose reel includes a frame 1 and a reel 2 rotatably arranged on the frame 1. A water inlet pipe 3 is arranged on the frame 1, and a water outlet pipe 31 is connected to the water inlet pipe 3. The water outlet pipe 31 extends to the outer periphery of the reel 2 and can be wound around the reel 2. A water pump 4 is arranged between the water inlet pipe 3 and the water outlet pipe 31. The water pump 4 is arranged in the reel 2. The water pump 4 includes a housing and a driving motor 43. A pump cavity 41 communicating the water inlet pipe 3 and the water outlet pipe 31 is arranged in the housing. A driving assembly 42 is arranged in the pump cavity 41. The driving motor 43 can drive the driving assembly 42 to move, and drive the liquid in the water inlet pipe 3 to be conveyed into the water outlet pipe 31 through the driving assembly 42. In this structure, the water pump 4 drives the liquid in the water inlet pipe 3 into the water outlet pipe 31 through the driving motor 43 and the driving assembly 42, thereby increasing the flow rate and water pressure of the liquid in the water outlet pipe 31, facilitating the cleaning work of the user and making it convenient for the user to use.

[0041] The water inlet pipe 3 is fixedly arranged on the frame 1 and is rotationally connected to the reel 2. The water inlet pipe 3 extends into the reel 2 and is fixedly connected to the water pump 4. A controller 6 is arranged on the side of the frame 1. The controller 6 is electrically connected to the water pump 4 through a wire 61. And a first wire groove 312 is arranged on the water inlet pipe 3. The wire 61 extends into the reel 2 through the first wire groove 312 and is electrically connected to the water pump 4. In this structure, since the water inlet pipe 3 is fixedly connected to the frame 1 and the water pump 4, and the water inlet pipe 3 is rotationally connected to the reel 2, it is avoided that the rotation of the water inlet pipe 3 and the water pump 4 during use affects the service life of the hose reel. And since the first wire groove 312 is arranged on the water inlet pipe 3, it is beneficial to avoid the abrasion of the wire 61 during the rotation of the reel 2, which is beneficial to extending the service life of the hose reel.

[0042] The water pump 4 includes a filter plate 45 arranged in the pump chamber 41. The filter plate 45 divides the pump chamber 41 into an inlet chamber 411 and an outlet chamber 412. Liquid inlet holes 451 and liquid outlet holes 452 are arranged on the filter plate 45. The inlet chamber 411 is communicated with the water inlet pipe 3. The inlet chamber 411 and the outlet chamber 412 are communicated through the liquid inlet holes 451. The outlet chamber 412 is communicated with the water outlet pipe 31 through the liquid outlet holes 452. And a first one-way valve 44 and a second one-way valve 441 for sealing the liquid inlet holes 451 and the liquid outlet holes 452 are respectively movably arranged on the filter plate 45.

[0043] During the movement of the driving assembly 42, the driving assembly 42 first drives the liquid in the inlet chamber 411 to enter the outlet chamber 412, and makes the first one-way valve 44 away from the liquid inlet hole 451, and the second one-way valve 441 seals the liquid outlet hole 452. Then, the driving assembly 42 drives the liquid in the outlet chamber 412 to enter the water outlet pipe 31, and makes the first one-way valve 44 seal the liquid inlet hole 451, and the second one-way valve 441 away from the liquid outlet hole 452.

[0044] Since the water pump 4 is arranged in the hose reel, when the hose reel of the present invention is used, the water inlet pipe 3 can be directly connected to tap water, and the water inlet pipe 3 can also be connected to the water in containers such as ponds and pools.

[0045] When the water inlet pipe 3 is connected to tap water, the water pump 4 can be in a closed state. At this time, the water pressure of the tap water can drive the first one-way valve 44 away from the liquid inlet hole 451, and the second one-way valve 441 away from the liquid outlet hole 452, so that the tap water can smoothly pass through the water pump 4 and flow out from the water outlet pipe 31. The water pump 4 can also be in a starting state. At this time, the water pump 4 can increase the flow rate and water pressure of the tap water, so as to facilitate the user to carry out cleaning work and facilitate the user to use. When the water inlet pipe 3 is connected to the water in containers such as ponds and pools, starting the water pump 4 can pump the water in containers such as ponds and pools through the water inlet pipe 3, so that the hose reel can be directly used as a water pump.

[0046] In this embodiment, the driving component 42 can be an impeller, a plunger, a distribution disc, etc. This structure is a common structure of the water pump 4, and those skilled in the art can implement the technical solution of the present invention according to the specification, the accompanying drawings of the specification, and the prior art.

[0047] In the present invention, a water flow hole 311 is provided in the water inlet pipe 3. The first wire groove 312 is a hole provided on one side of the water flow hole 311 and extending along the length direction of the water inlet pipe 3. An inlet 313 and an outlet 314 are provided on the side wall of the water inlet pipe 3. The wire 61 can pass through the inlet 313 and the outlet 314 and penetrate into and out of the first wire groove 312. The hole extending along the length direction of the water inlet pipe 3 and the inlet 313 and the outlet 314 provided on the side wall of the water inlet pipe 3 facilitate the local hiding of the wire 61 in the first wire groove 312, avoiding the contact between the wire 61 and the reel 2 during use, avoiding the damage of the wire 61 caused thereby, and being beneficial to prolonging the service life of the hose reel.

[0048] In this embodiment, a convex portion 315 is provided in the water flow hole 311, and the first wire groove 312 is provided in the convex portion 315. The convex portion 315 provided in the water flow hole 311 facilitates the rotational connection between the water inlet pipe 3 and the reel 2, avoiding the convex portion 315 protruding towards the outer periphery of the water pipe, being beneficial to reducing the diameter of the water inlet pipe 3, and facilitating the assembly and production of the hose reel.

[0049] A positioning hole 112 is provided on the frame 1. A positioning portion 33 adapted to the positioning hole 112 is provided on the water inlet pipe 3. A second wire groove 115 is connected to the side wall of the positioning hole 112, and the second wire groove 115 extends to one side of the controller 6. The cooperation between the positioning portion 33 and the positioning hole 112 can connect the second wire groove 115 with the first wire groove 312, so that the wire 61 can pass through the first wire groove 312 and the second wire groove 115 and be connected to the controller 6. The setting of the positioning hole 112 and the positioning portion 33 is beneficial to the positioning connection between the water inlet pipe 3 and the frame 1, facilitating the stable installation of the water inlet pipe 3, and this structure facilitates the connection and cooperation between the first wire groove 312 and the second wire groove 115, avoiding the dislocation between the first wire groove 312 and the second wire groove 115 from affecting the installation of the wire 61, and facilitating the assembly and production of the hose reel.

[0050] A fixing hole 114 for installing the controller 6 is provided on the frame 1 of the present invention. The second wire groove 115 connects the fixing hole 114 with the positioning hole 112. The setting of the fixing hole 114 facilitates the positioning installation of the controller 6, and since the second wire groove 115 connects the fixing hole 114 with the positioning hole 112, it is convenient for the wire 61 to pass through the second wire groove 115 and be connected to the controller 6, facilitating the hidden setting of the wire 61 and avoiding accidental damage to the wire 61.

[0051] A battery pack 7 is detachably arranged on the frame 1 or the controller 6. The battery pack 7 is electrically connected to the controller 6 and the drive motor 43. The detachably arranged battery pack 7 facilitates the disassembly and replacement of the power supply, making it convenient for users to use.

[0052] In this embodiment, the frame 1 includes two side plates 11. The positioning holes 112, fixing holes 114 and the second guide grooves 116 are all arranged on the side plates 11. The water inlet pipe 3 is detachably arranged on one side plate 11, and a drive rod 5 is rotatably arranged on the other side plate 11. Both ends of the reel 2 are rotatably connected to the frame 1 through the water inlet pipe 3 and the drive rod 5 respectively. The drive rod 5 can control the rotation of the reel 2, making it convenient for users to use and control. Moreover, in this structure, both ends of the reel 2 are rotatably connected to the frame 1 through the water inlet pipe 3 and the drive rod 5, which is beneficial to simplifying the structure of the pipe reel and facilitating the assembly and production of the pipe reel.

[0053] An L-shaped swing arm 54 is arranged on the drive rod 5, and a grip 55 is rotatably arranged on the swing arm 54. During use, the user grasps the grip 55 and drives the drive rod 5 to rotate through the swing arm 54.

[0054] In the present invention, a positioning portion 33, a limiting wall and a connecting portion are arranged on the water inlet pipe 3. The positioning portion 33 cooperates with the positioning hole 112. A connector 32 is detachably arranged on the connecting portion. When the connector 32 is connected to the connecting portion, it can drive the limiting wall to abut against the side plate 11. In this structure, the water inlet pipe 3 is fixedly connected to the frame 1 through the positioning hole 112 and the positioning portion 33, and the water inlet pipe 3 is relatively fixed to the frame 1 through the connector 32, which is convenient for the disassembly and installation of the water inlet pipe 3. In this embodiment, the limiting wall is arranged at the end of the positioning portion 33, the connecting portion is an external thread, and the connector 32 is threadedly connected to the connecting portion.

[0055] In this embodiment, the positioning hole 112 is a special-shaped hole, which includes a cylindrical main body. A strip-shaped guide groove 116 is arranged on the outer periphery of the main body. A positioning portion 33 adapted to the guide groove 116 is arranged on the water inlet pipe 3. One end of the guide groove 116 is provided with a pressing surface 113. The connector 32 can drive one end of the positioning portion 33 to abut against the pressing surface 113. An articulated rod 51 adapted to the main body is arranged on the drive rod 5. Moreover, a connecting hole 211 is arranged on the limiting plate 21. The structure of the connecting hole 211 is similar to that of the positioning hole 112. The water inlet pipe 3 is rotatably connected to the connecting hole 211. A driving portion 52 is arranged on the drive rod 5. The driving portion 52 cooperates with the connecting hole 211 to drive the reel 2 to rotate. And a end cap 53 is arranged on the drive rod 5. The end cap 53 can abut against one side of the limiting plate 21 and prevent the driving portion 52 from disengaging from the connecting hole 211.

[0056] The drum 2 includes two limiting plates 21 arranged at intervals. A sleeve 22 is detachably arranged between the limiting plates 21. An installation cavity 23 is arranged in the sleeve 22. The water pump 4 is arranged in the installation cavity 23, and the limiting plates 21 are arranged at both ends of the sleeve 22 to hide the water pump 4. The arrangement of the two limiting plates 21 and the sleeve 22 facilitates the assembly and production of the drum 2. Since the water pump 4 is hidden in the installation cavity 23, accidental damage to the water pump 4 during use is avoided, which is beneficial to extending the service life of the hose reel.

[0057] Three installation protrusions 111 are formed by extending the outer periphery of the side plates 11. A connecting plate 12 is arranged between the opposite installation protrusions 111 on the two side plates 11. The three connecting plates 12 are distributed in a triangle and surround the outer periphery of the drum 2. The arrangement of the three installation protrusions 111 and the connecting plate 12 facilitates the flexible installation and placement of the hose reel, making it convenient for users to use the hose reel.

[0058] In the present invention, a pressure measuring cavity 413 is connected to the water outlet pipe 31 or the pump cavity 41. An inspection port 414 is arranged on the side wall of the pressure measuring cavity 413. A strain gauge 818 is arranged on the water pump 4. The sensing piece is arranged on one side of the inspection port 414. The liquid in the pressure measuring cavity 413 can drive the strain gauge 818 to deform. The arrangement of the pressure measuring cavity 413 and the strain gauge 818 in this structure facilitates users to detect the hydraulic pressure in the water pump 4. The structure of the strain gauge 818 is simple, the production cost is low, it is convenient for production and installation, and the service life of the strain gauge 818 is long, which is beneficial to extending the service life of the hose reel.

[0059] In the present invention, producers can install a sensor or an actuator connected to the strain gauge 818 on the water pump 4. The sensor can be a pressure measuring device such as a pressure gauge. Through the pressure measuring device, users can understand the water pressure in the water pump 4. The actuator can be components such as an emergency stop switch 92 and a solenoid valve. Through the actuator, operations such as emergency stop of the water pump 4 can be performed when the water pressure in the water pump 4 is too high.

[0060] In this embodiment, an emergency stop switch 92 is arranged on the water pump 4. The emergency stop switch 92 is electrically connected to the controller 6. The deformation of the strain gauge 818 can trigger the emergency stop switch 92 and control the driving motor 43 to turn off. When the pressure in the water outlet pipe 31 or the pump cavity 41 is too high, the emergency stop switch 92 and the controller 6 can control the driving motor 43 to turn off, avoiding damage to the water pump 4 and the water outlet pipe 31 caused thereby, which is beneficial to extending the service life of the hose reel.

[0061] A transmission member 9 is provided between the emergency stop switch 92 and the strain gauge 818, and an elastic member 91 is connected to the transmission member 9. The elastic member 91 can drive the transmission member 9 to abut against the strain gauge 818. The deformation of the strain gauge 818 can drive the transmission member 9 to move and trigger the emergency stop switch 92. The settings of the transmission member 9 and the elastic member 91 are beneficial to increasing the damping during the deformation process of the strain gauge 818, facilitating the use and adjustment by the user. Moreover, the setting of the elastic member 91 facilitates the reset of the strain gauge 818, avoiding plastic deformation of the strain gauge 818 after long-term use, and is beneficial to extending the service life of the strain gauge 818.

[0062] An induction part is provided on the strain gauge 818. The induction part is slidably arranged in the inspection port 414, and a driving surface 84 perpendicular to the axial direction of the inspection port 414 is provided on the induction part. Since the induction part is slidably arranged in the inspection port 414, it is beneficial to the stable deformation of the strain gauge 818, avoiding the deviation of the induction part from affecting the deformation of the strain gauge 818, and is beneficial for other components to detect the hydraulic pressure in the water pump 4 through the strain gauge 818.

[0063] In this embodiment, a connecting seat 415 is detachably arranged on the pump body. The pressure measuring chamber 413 is arranged in the connecting seat 415. A fixing plate 46 is detachably arranged on the connecting seat 415, and the inspection port 414 is arranged on the fixing plate 46.

[0064] In the present invention, a conical deformation part 82 is arranged on the outer periphery of the induction part. An annular mounting part 83 is arranged on the outer periphery of the deformation part 82. An installation seat 416 is detachably arranged on the pump body. The installation seat 416 presses the mounting part 83 against the pump body and fixes the strain gauge 818 on the pump body. And an avoidance part 418 corresponding to the deformation part 82 is arranged on the installation seat 416. The deformation part 82 can deform and displace into the avoidance part 418. The conical deformation part 82 is convenient for the uniform stress of the induction part, reducing the friction between the induction part and the inspection port 414 during the movement process. And the annular mounting part 83 and the installation seat 416 are convenient for the strain gauge 818 to seal the inspection port 414, avoiding the leakage of the liquid in the water pump 4 through the inspection port 414.

[0065] In this embodiment, a movable cavity 417 is arranged in the installation seat 416. The transmission member 9 and the elastic member 91 are slidably arranged in the movable cavity 417. The emergency stop switch 92 is detachably arranged on the installation seat 416. And an annular sealing convex edge 461 is arranged on the fixing plate 46. The installation seat 416 can drive the mounting part 83 to press against the sealing convex edge 461, thereby preventing the liquid in the pressure measuring chamber 413 from discharging from the gap between the fixing plate 46 and the strain gauge 818.

[0066] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A pressurized hose reel, comprising a frame (1) and a reel (2) rotatably arranged on the frame (1). A water inlet pipe (3) is arranged on the frame (1), and a water outlet pipe (31) is connected to the water inlet pipe (3). The water outlet pipe (31) extends to the outer circumference of the reel (2) and can be wound around the reel (2), characterized in that: A water pump (4) is arranged between the water inlet pipe (3) and the water outlet pipe (31). The water pump (4) is arranged in the reel (2). The water pump (4) includes a housing and a driving motor (43). A pump chamber (41) communicating the water inlet pipe (3) and the water outlet pipe (31) is arranged in the housing. A driving assembly (42) is arranged in the pump chamber (41). The driving motor (43) can drive the driving assembly (42) to move, and drive the liquid in the water inlet pipe (3) to be conveyed into the water outlet pipe (31) through the driving assembly (42). The water inlet pipe (3) is fixedly arranged on the frame (1) and rotatably connected to the reel (2). The water inlet pipe (3) extends into the reel (2) and is fixedly connected to the water pump (4). A controller (6) is arranged on the side of the frame (1). The controller (6) is electrically connected to the water pump (4) through a wire (61). A first wire groove (312) is arranged on the water inlet pipe (3). The wire (61) extends into the reel (2) through the first wire groove (312) and is electrically connected to the water pump (4).

2. The pressure-boosting hose reel according to claim 1, characterized in that: A water flow hole (311) is arranged in the water inlet pipe (3). The first wire groove (312) is a hole arranged on one side of the water flow hole (311) and extending along the length direction of the water inlet pipe (3). An inlet (313) and an outlet (314) are arranged on the side wall of the water inlet pipe (3). The wire (61) can pass through the inlet (313) and the outlet (314) to penetrate into and out of the first wire groove (312).

3. The pressure-boosting hose reel according to claim 2, characterized in that: A raised portion (315) is arranged in the water flow hole (311). The first wire groove (312) is arranged in the raised portion (315).

4. A supercharging reel according to claim 1 or 2 or 3, characterized in that: A positioning hole (112) is arranged on the frame (1). A positioning portion (33) adapted to the positioning hole (112) is arranged on the water inlet pipe (3). A second wire groove (115) is connected to the side wall of the positioning hole (112). The second wire groove (115) extends to one side of the controller (6). The cooperation of the positioning portion (33) and the positioning hole (112) can connect the second wire groove (115) with the first wire groove (312), so that the wire (61) can pass through the first wire groove (312) and the second wire groove (115) and be connected to the controller (6).

5. The pressure boosting reel according to claim 4, wherein: A fixing hole (114) for installing the controller (6) is arranged on the frame (1). The second wire groove (115) connects the fixing hole (114) and the positioning hole (112).

6. A supercharging reel according to claim 1 or 2 or 3 or 5, characterized in that: A battery pack (7) is detachably arranged on the frame (1) or the controller (6). The battery pack (7) is electrically connected to the controller (6) and the driving motor (43).

7. A boosting hose reel according to claim 1 or 2 or 3 or 5, characterized in that: A pressure measuring chamber (413) is connected to the water outlet pipe (31) or the pump chamber (41). An inspection port (414) is arranged on the side wall of the pressure measuring chamber (413). A strain gauge (8) is arranged on the water pump (4). The sensing piece is arranged on one side of the inspection port (414). The liquid in the pressure measuring chamber (413) can drive the strain gauge (8) to deform. An emergency stop switch (92) is arranged on the water pump (4). The emergency stop switch (92) is electrically connected to the controller (6). The deformation of the strain gauge (8) can trigger the emergency stop switch (92) and control the driving motor (43) to shut down.

8. The pressure-boosting reel according to claim 7, wherein: A transmission member (9) is provided between the emergency stop switch (92) and the strain gauge (8), and an elastic member (91) is connected to the transmission member (9). The elastic member (91) can drive the transmission member (9) to abut against the strain gauge (8). The deformation of the strain gauge (8) can drive the transmission member (9) to move and trigger the emergency stop switch (92).

9. The pressure boosting hose reel according to claim 7, wherein: An induction part (81) is provided on the strain gauge (8). The induction part (81) is slidably arranged in the inspection port (414), and a driving surface (84) perpendicular to the axial direction of the inspection port (414) is provided on the induction part (81).

10. A pressure-boosting hose reel according to claim 8 or 9, characterized in that: A conical deformation part (82) is provided on the outer periphery of the induction part (81). An annular installation part (83) is provided on the outer periphery of the deformation part (82). An installation seat (416) is detachably arranged on the pump body. The installation seat (416) presses the installation part (83) against the pump body, fixes the strain gauge (8) on the pump body, and an avoidance part (418) corresponding to the deformation part (82) is provided on the installation seat (416). The deformation part (82) can deform and displace into the avoidance part (418).

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