Handheld cleaning machine

Abstract

The present invention discloses a handheld cleaning machine, comprising: a main body shell; a water pump, arranged in the main body shell; a motor assembly, arranged in the main body shell and connected to the water pump, for providing power; a battery pack, arranged in the main body shell, for supplying power to the motor assembly; wherein a shock absorbing device is provided between the water pump and the main body shell. The above-mentioned handheld cleaning machine is provided with a shock absorbing device between the water pump and the main body shell, thereby greatly reducing the vibration generated by the water pump transmitted to the main body shell, so that the operator cannot feel the vibration from the main body shell when holding the cleaning machine for operation, thereby increasing the experience and making the operation more comfortable.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, in particular to a handheld cleaning machine. Background Art

[0002] The widespread use of cleaning equipment has greatly reduced the burden of manual operation, making it more convenient, time-saving and labor-saving. Traditional cleaning equipment is divided into seat-type cleaning machines and hand-held cleaning machines. At present, seat-type cleaning machines use a method of separating the main machine from the water gun; hand-held cleaning machines use a water pump and main machine integrated design.

[0003] For handheld cleaning machines, the reciprocating motion of the water pump plunger causes impact, and the motor also generates vibration when working. However, the water pump and the motor are rigidly connected to the main body housing, and the vibration generated is directly transmitted to the main body housing. The operator feels the vibration, and the experience is poor. Summary of the invention

[0004] Based on this, it is necessary to provide a handheld cleaning machine to address the problem that the vibration generated by the water pump and the motor is directly transmitted to the main body housing.

[0005] A handheld cleaning machine, comprising:

[0006] Host housing;

[0007] A water pump, arranged in the main engine housing;

[0008] A motor assembly, disposed in the main engine housing and connected to the water pump, for providing power;

[0009] A battery pack, disposed in the host housing, for supplying power to the motor assembly;

[0010] Wherein, a shock absorbing device is provided between the water pump and the main engine housing.

[0011] The above-mentioned handheld cleaning machine is provided with a shock absorbing device between the water pump and the main body shell, thereby greatly reducing the vibration generated by the water pump transmitted to the main body shell, so that the operator cannot feel the vibration from the main body shell when operating the handheld cleaning machine, which increases the experience and makes the operation more comfortable.

[0012] In one of the embodiments, a shock absorbing device is provided between the motor assembly and the main body housing.

[0013] A shock absorbing device is arranged between the motor assembly and the main body housing, which reduces the vibration generated by the motor assembly and is transmitted to the main body housing, further improving the comfort of operation.

[0014] In one of the embodiments, it further comprises a water outlet pipe, the water outlet pipe extends into the main engine housing and is connected to the water pump, and a shock absorbing device is provided between the water outlet pipe and the main engine housing.

[0015] A shock absorbing device is also provided between the water outlet pipe and the main unit housing to further reduce the vibration transmitted to the main unit housing.

[0016] In one of the embodiments, the water pump is provided with an annular shock absorbing device or a block shock absorbing device; the motor assembly is provided with an annular shock absorbing device or a block shock absorbing device; and the water outlet pipe is provided with an annular shock absorbing device or a block shock absorbing device.

[0017] In one of the embodiments, the shock absorbing device is bonded to the host housing.

[0018] In one embodiment, the shock absorbing device includes an elastomer or a rubber pad.

[0019] In one of the embodiments, a nozzle is further included, and a water flow path between the water pump and the nozzle forms a linear outflow path.

[0020] The above-mentioned straight outflow path reduces the bending structure and reduces the volume of the whole machine.

[0021] In one of the embodiments, an eccentric shaft is provided between the water pump and the motor assembly.

[0022] In one of the embodiments, the eccentric shaft is mounted on a bearing.

[0023] In one of the embodiments, the water pump includes a plunger, and the plunger is arranged perpendicular to the outflow path, wherein the eccentric shaft drives the plunger to reciprocate when it rotates.

[0024] The eccentric shaft drives the plunger to move, so that the rotary motion of the motor is converted into the eccentric rotation of the eccentric shaft, thereby driving the plunger to reciprocate.

[0025] In one embodiment, the host housing includes a handle, and a start switch is provided on the handle.

[0026] In one embodiment, the motor in the motor assembly is a DC motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a handheld cleaning machine according to an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of a water pump and a motor assembly of a handheld cleaning machine according to an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of water inlet and outlet of a handheld cleaning machine according to an embodiment of the present invention.

[0030] Wherein: Handheld cleaning machine 100 Host housing 110

[0031] Water pump 120 eccentric shaft 1201

[0032] Bearing 1202 Plunger 1203

[0033] First cavity 1204 Second cavity 1205

[0034] First one-way valve 1206 Second one-way valve 1207

[0035] The third one-way valve 1208 and the fourth one-way valve 1209

[0036] Motor assembly 130 Shock absorber 140

[0037] Water outlet pipe 150 Handle 160

[0038] Start switch 1601 Support frame 170

[0039] Nozzle 180 DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0043] Please refer to Figure 1The present invention discloses a handheld cleaning machine 100, comprising: a main body shell 110; a water pump 120, which is arranged in the main body shell 110; a motor assembly 130, which is arranged in the main body shell 110 and connected to the water pump 120 for providing power; a battery pack, which is configured in the main body shell 110 and is used to supply power to the motor assembly 130; wherein a shock absorbing device 140 is provided between the water pump 120 and the main body shell 110.

[0044] Furthermore, the main body housing 110 includes a handle 160, and a start switch 1601 is disposed on the handle 160. The handle 160 is disposed so that the operator can hold it conveniently. When the operator is ready to work, the operator holds the cleaning machine and starts the start switch 1601 on the handle 160; when the operator is ready to stop working, the operator directly turns off the start switch 1601 on the handle 160. Figure 1 As shown, a support frame 170 is also provided between the handle 160 and the main body housing 110 in the horizontal direction to assist the holding operation during work.

[0045] Furthermore, the motor used in the motor assembly 130 is a DC motor. The battery pack directly powers the DC motor, which is used to drive the water pump 120 to work.

[0046] Furthermore, a protective cover is provided on the outside of the battery pack to prevent water and dust.

[0047] Furthermore, the handheld cleaning machine 100 further includes a nozzle 180, and the water flow path between the water pump 120 and the nozzle 180 forms a linear outflow path Y. Water is supplied to the water pump 120 through the inflow path for pressurization, and the pressurized water is supplied to the nozzle 180 through the outflow path Y. The outflow path Y is linear, has no complicated bending flow structure, and is smaller in size.

[0048] In a specific embodiment, reference Figure 1 , the left end of the handheld cleaning machine 100 shown is a nozzle 180, which is connected to the water outlet pipe 150 located inside the main body shell 110, and the radial dimension of this section of the main body shell 110 is relatively small. The water outlet pipe 150 is connected to the water outlet chamber, and the radial dimension of this section of the main body shell 110 gradually increases to remain unchanged. The water outlet chamber is connected to the water pump 120, and this section of the main body shell 110 protrudes outward and has the largest radial dimension. The water pump 120 is connected to the motor assembly 130, and the radial dimension of this section of the main body shell 110 remains unchanged. Next, the main body shell 110 is bent into a handle 160 at the right end, and a start switch 1601 is provided on the handle 160, and a support frame 170 is provided between the tail end of the handle 160 and the body of the main body shell 110 in the horizontal direction, and the support frame 170 is a rod-shaped structure that is bent at an obtuse angle.

[0049] During the operation of a conventional handheld cleaning machine, the water pump generates vibrations which are transmitted to the main body housing. The handheld cleaning machine 100 is provided with a shock absorbing device 140 between the water pump 120 and the main body housing 110, thereby greatly reducing the vibrations generated by the water pump 120 being transmitted to the main body housing 110, so that the operator does not feel the vibrations from the main body housing 110 when operating the handheld cleaning machine, thereby increasing the user experience and making the operation more comfortable.

[0050] In one embodiment, in addition to disposing the shock absorbing device 140 between the water pump 120 and the main body housing 110 , the handheld cleaning machine 100 may also dispose the shock absorbing device 140 at other locations, which can reduce the possibility of vibration being transmitted to the main body housing 110 to a greater extent.

[0051] Furthermore, the handheld cleaning machine 100 is provided with a shock absorbing device 140 between the motor assembly 130 and the main body housing 110. The rotational motion of the motor will also generate more vibrations, so the shock absorbing device 140 is provided between the motor assembly 130 and the main body housing 110, which reduces the vibration generated by the motor assembly 130 and is transmitted to the main body housing 110, further improving the comfort of operation.

[0052] Furthermore, the handheld cleaning machine 100 further includes a water outlet pipe 150, which extends into the main body housing 110 and is connected to the water pump 120, and a shock absorbing device 140 is provided between the water outlet pipe 150 and the main body housing 110. A shock absorbing device 140 is also provided between the water outlet pipe 150 and the main body housing 110 to further reduce the vibration transmitted to the main body housing 110.

[0053] Furthermore, the handheld cleaning machine 100 further comprises a water inlet pipe, and a shock absorbing device 140 is also provided between the water inlet pipe and the main body housing 110 to further reduce the vibration transmitted to the main body housing 110 .

[0054] In one embodiment, the position and number of the damping device 140 are not limited and are selected according to the vibration intensity of each component. The water pump 120 is provided with an annular damping device 140 or a block damping device 140; the motor assembly 130 is provided with an annular damping device 140 or a block damping device 140; the water outlet pipe 150 is provided with an annular damping device 140 or a block damping device 140.

[0055] In a preferred embodiment, if Figure 2As shown, a block-shaped shock absorbing device 140 is provided on each of the upper and lower sides of the water pump 120, and the block-shaped shock absorbing device 140 is located in the middle of the upper and lower sides of the water pump, and the force is uniform. Since the plunger 1203 in the water pump 120 reciprocates up and down, the upper and lower sides of the water pump 120 are greatly impacted, and more vibrations are generated. Therefore, the shock absorbing device 140 is provided on the upper and lower sides of the water pump 120, which can reduce more vibrations. Four block-shaped shock absorbing devices 140 are evenly provided on the circumference of the motor assembly 130, and are provided close to the middle of the motor, and the force is uniform, which plays a better shock absorbing role. Four block-shaped shock absorbing devices 140 are evenly provided on the circumference of the water outlet pipe 150, and are provided close to the middle of the water outlet pipe, and the force is uniform, which plays a better shock absorbing role. Of course, the number of block-shaped shock absorbing devices 140 is not limited. In order to play a better shock absorbing role, a suitable number can be selected. Uniform distribution is preferred, but more shock absorbing devices 140 can be provided in places with large vibrations.

[0056] In a preferred embodiment, an annular shock absorbing device 140 is provided in the circumference of the water pump 120, and is provided near the middle of the water pump, and surrounds the water pump 120. An annular shock absorbing device 140 is provided in the circumference of the motor assembly 130, and is provided near the middle of the motor, and surrounds the motor assembly 130. Similarly, a circle of annular shock absorbing devices 140 is provided in the circumference of the water outlet pipe 150, and is provided near the middle of the water outlet pipe 150, and surrounds the water outlet pipe 150. The purpose of providing the shock absorbing device 140 in the middle is to make the force more uniform. In addition, the number of annular shock absorbing devices 140 is not fixed, and it can be increased according to the intensity of the vibration, and can also be evenly distributed at the components where they are provided, so as to achieve a better shock absorbing effect.

[0057] In one embodiment, the shock absorbing device 140 is bonded to the host housing 110, and waterproof glue is used to bond the shock absorbing device 140 to the host housing 110. In addition, other methods of fixing the shock absorbing device 140 to the host housing 110 and the above-mentioned setting position also belong to the protection scope of this application.

[0058] In one embodiment, the shock absorbing device 140 includes an elastic body or a rubber pad. The shock absorbing device 140 is usually made of a spring or a rubber pad or a rubber pad block with a large fatigue strength. When a rubber pad or a rubber pad block is selected, it can be made into a rubber gasket shape to surround the entire water pump 120, the motor assembly 130 and other components.

[0059] In one embodiment, an eccentric shaft 1201 is disposed between the water pump 120 and the motor assembly 130. The motor assembly 130 is provided with a motor shaft, and the eccentric shaft 1201 is eccentrically disposed with respect to the axis X of the motor shaft, such as Figure 2 As shown, an eccentric distance e is provided, and the eccentric shaft 1201 can be an isodiametric shaft or a stepped shaft.

[0060] Furthermore, the eccentric shaft 1201 is mounted on a bearing 1202. The type of the bearing 1202 is relatively conventional, such as a deep groove ball bearing 1202, a self-aligning ball bearing 1202, a needle ball bearing 1202, etc., which meet the force conditions and play a supporting role for the eccentric shaft 1201.

[0061] Furthermore, the water pump 120 includes a plunger 1203, which is arranged perpendicular to the outflow path Y, wherein the eccentric shaft 1201 drives the plunger 1203 to reciprocate when rotating. The outflow path Y is arranged to coincide with the axis X of the motor.

[0062] Specifically, the water pump 120 includes a cylinder body and a plunger 1203, and the cylinder body and the plunger 1203 are arranged perpendicular to the outflow path Y, which can effectively reduce the horizontal length of the cylinder body, and at the same time, the space in the vertical direction can be effectively utilized, further reducing the size of the whole machine, so that the structural design of the whole handheld cleaning machine 100 is more compact and the human-machine operation is more comfortable. The motor axis X is arranged to coincide with the outflow path Y, which is also to make the whole machine structure more compact.

[0063] A single plunger 1203 is used in the water pump 120. The plunger 1203 is arranged perpendicular to the outflow path Y. A groove is provided in the middle of the body of the plunger 1203 in the direction perpendicular to the outflow path Y to accommodate one end of the eccentric shaft 1201. When the motor performs a rotary motion, the eccentric shaft 1201 rotates, thereby driving the plunger 1203 to perform a reciprocating motion. The arrangement of the plunger 1203 can effectively reduce the length of the cleaning machine in the direction of the motor shaft, making the structure of the cleaning machine more compact.

[0064] The eccentric shaft 1201 drives the plunger 1203 to move, so that the rotary motion of the motor is converted into the eccentric rotation of the eccentric shaft 1201, thereby driving the plunger 1203 to reciprocate. The vibration caused by the impact due to the rotary motion of the motor and the reciprocating motion of the plunger 1203 in the water pump 120 is the main reason for the vibration of the cleaning machine. If it is necessary to improve the performance of the handheld cleaning machine 100 in this application, such as pressure and flow rate, in the actual production process, the optional methods include increasing the cross-sectional area of ​​the plunger 1203, increasing the reciprocating stroke or number of times, and as the area of ​​the plunger 1203 increases and the reciprocating stroke and number of times increase, the impact force on the plunger 1203 increases, and the vibration of the whole machine increases. Since the shock absorbing device 140 is provided to reduce the vibration of the whole machine, the present application not only improves the performance of the whole machine, but also improves the comfort of operation.

[0065] In the specific work process, refer to Figure 2 , the axis X of the motor shaft is parallel to the ground plane, and the plunger 1203 in the water pump 120 is perpendicular to the ground plane. Figure 3The water pump 120 has a first cavity 1204 at the top and a second cavity 1205 at the bottom. The up-and-down reciprocating motion of the plunger 1203 can reach the first cavity 1204 and the second cavity 1205. The water pump 120 also includes a first check valve 1206 and a third check valve 1208 constituting the first cavity 1204, and a second check valve 1207 and a fourth check valve 1209 constituting the second cavity 1205. When the plunger 1203 moves upward, the first check valve 1206 is closed, and the water in the first cavity 1204 flows out from the third check valve 1208 under the pressure of the plunger 1203; at the same time, the second check valve 1207 is opened, and the fourth check valve 1209 is closed, and the internal space of the second cavity 1205 becomes larger to form a negative pressure, and the water flows from the second check valve 1207 into the second cavity 1205. When the plunger 1203 moves downward, the second one-way valve 1207 is closed, and the water in the second cavity 1205 flows out from the fourth one-way valve 1209 due to the pressure of the plunger 1203; at the same time, the first one-way valve 1206 is opened, and the third one-way valve 1208 is closed, the internal space of the first cavity 1204 becomes larger to form a negative pressure, and water flows from the first one-way valve 1206 into the first cavity 1204.

[0066] A specific embodiment is provided below. Figure 2 The present invention discloses a handheld cleaning machine 100, wherein the axis X of the motor shaft is parallel to the ground plane, and the plunger 1203 in the water pump 120 is perpendicular to the ground plane. A shock absorbing device 140 is provided on each of the upper and lower sides of the water pump 120, a shock absorbing device 140 is provided on each of the upper and lower ends perpendicular to the axis X of the motor shaft, and a shock absorbing device 140 is provided on each of the front and rear ends perpendicular to the axis X of the motor shaft ( Figure 2 When the motor starts to rotate, the plunger 1203 in the water pump 120 starts to reciprocate up and down, generating impact and causing vibration. The shock absorbing device 140 disposed between the water pump 120 and the main body housing 110 and the shock absorbing device 140 disposed between the motor assembly 130 and the main body housing 110 play a role in buffering and shock absorption, and minimize the vibration transmitted to the main body housing 110, so that the operator does not feel the vibration of the main body housing 110, and the hand is comfortable to hold and the experience is better.

[0067] The handheld cleaning machine 100 disclosed in the present invention is provided with a shock absorbing device 140 between the water pump 120 and the main body housing 110, thereby greatly reducing the vibration generated by the water pump 120 and the motor from being transmitted to the main body housing 110, so that the operator does not feel the vibration from the main body housing 110 when holding the cleaning machine for operation, thereby increasing the experience and making the operation more comfortable. At the same time, the shock absorbing device 140 can also be set in other parts, which can further reduce the possibility of vibration being transmitted to the main body housing 110. In addition, the eccentric shaft 1201 drives the plunger 1203 to move, so that the rotary motion of the motor is converted into the eccentric rotation of the eccentric shaft 1201, thereby driving the plunger 1203 to reciprocate.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A handheld cleaning machine, characterized in that: include: Host housing; A water pump, arranged in the main engine housing; A motor assembly, disposed in the main engine housing and connected to the water pump, for providing power; A battery pack, disposed in the host housing, for supplying power to the motor assembly; Wherein, a shock absorbing device is provided between the water pump and the main engine housing; It also includes a spray head, and the water flow path between the water pump and the spray head forms a linear outflow path; An eccentric shaft is provided between the water pump and the motor assembly; The water pump comprises a plunger, and the plunger is arranged perpendicular to the outflow path, wherein the eccentric shaft drives the plunger to reciprocate when rotating; The damping device is disposed on both sides of the water pump along the reciprocating direction of the plunger.

2. The handheld cleaning machine according to claim 1, characterized in that: A shock absorbing device is provided between the motor assembly and the mainframe housing.

3. The handheld cleaning machine according to claim 2, characterized in that: It also includes a water outlet pipe, which extends into the main engine housing and is connected to the water pump. A shock absorbing device is provided between the water outlet pipe and the main engine housing.

4. The handheld cleaning machine according to claim 3, characterized in that: The water pump is provided with an annular shock absorbing device or a block-shaped shock absorbing device; the motor assembly is provided with an annular shock absorbing device or a block-shaped shock absorbing device; the water outlet pipe is provided with an annular shock absorbing device or a block-shaped shock absorbing device.

5. The handheld cleaning machine according to any one of claims 1 to 4, characterized in that: The shock absorbing device is bonded to the main body shell.

6. The handheld cleaning machine according to claim 5, characterized in that: The shock absorbing device comprises an elastic body or a rubber pad.

7. The handheld cleaning machine according to claim 6, characterized in that: The eccentric shaft is mounted on a bearing.

8. The handheld cleaning machine according to claim 1, characterized in that: The host housing comprises a handle, and a start switch is arranged on the handle.

9. The handheld cleaning machine according to claim 1, characterized in that: The motor in the motor assembly is a DC motor.

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