Cleaning kettle and high-pressure cleaning machine

Abstract

The utility model relates to a cleaning kettle and a high-pressure cleaning machine, the high-pressure cleaning machine comprises a shell, a pump assembly contained in the shell, and a water inlet assembly and a spray pipe assembly which are respectively connected with two sides of the pump assembly, external water flows in from the water inlet assembly, flows through the pump assembly and flows out from the spray pipe assembly, and the cleaning kettle is connected with the spray pipe assembly. The spray pipe assembly is provided with a spray pipe body, a first flange portion and a second flange portion, the first flange portion and the second flange portion extend from the spray pipe body to the cleaning kettle, the cleaning kettle is provided with a kettle body extending in the axial direction and a kettle neck connected to the first flange portion, a narrow groove is formed in the spray pipe body and located between the first flange portion and the second flange portion, and the narrow groove partially covers the kettle neck.

Description

[Technical Field]

[0001] This utility model relates to the field of power tool technology, and in particular to a cleaning pot and a high-pressure washer using the cleaning pot. [Background Technology]

[0002] High-pressure washers are widely used for cleaning vehicles, yards, and floors. Their working principle is generally that the motor assembly drives the plunger to reciprocate, forming high-pressure water in the pump and spraying it outward through the nozzle to achieve the purpose of rinsing items.

[0003] In addition, to improve cleaning efficiency, high-pressure washers are usually equipped with a cleaning tank containing cleaning liquid at the nozzle. When the external water flow, pressurized by the plunger, flows into the nozzle, the cleaning liquid in the cleaning tank is simultaneously drawn into the nozzle due to negative pressure, mixes with the water flow, and is finally sprayed out from the nozzle.

[0004] However, to prevent cleaning fluid leakage, most existing nozzles and cleaning bottles are sealed with O-rings and other sealing components. Such sealing methods often reduce the liquid absorption performance between the cleaning bottle and the nozzle, which in turn prevents the cleaning fluid from being effectively guided into the nozzle, resulting in a reduction in the overall cleaning effect of the high-pressure washer.

[0005] Therefore, it is determined that it is necessary to provide an improved cleaning pot and pressure washer to overcome the deficiencies of the prior art. [Utility Model Content]

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cleaning pot and a high-pressure washer using the cleaning pot. Equipping the cleaning pot can reduce the probability of cleaning fluid leakage from the high-pressure washer, thereby improving the liquid absorption effect of the high-pressure washer and further improving the overall cleaning effect of the high-pressure washer.

[0007] The present invention solves the existing technical problems by adopting the following technical solution: a cleaning pot, adapted to a high-pressure washer, the high-pressure washer including a shell, a pump assembly housed in the shell, and a water inlet assembly and a spray nozzle assembly respectively connected to both sides of the pump assembly. External water flows in from the water inlet assembly, flows through the pump assembly, and flows out from the spray nozzle assembly. The cleaning pot is connected to the spray nozzle assembly. The spray nozzle assembly has a spray nozzle body, a first flange portion and a second flange portion extending from the spray nozzle body toward the cleaning pot. The cleaning pot has a pot body extending axially and a pot neck connected to the first flange portion. The pot neck extends between the first flange portion and the second flange portion. The spray nozzle body has a slot between the first flange portion and the second flange portion. The slot is adjacent to the end face of the pot neck.

[0008] A further improvement is that the slot is recessed from the end face of the nozzle body and extends in an arc shape.

[0009] A further improvement is as follows: the slot has a proximal end and a distal end opposite to the proximal end, and the width of the slot decreases from the proximal end to the distal end.

[0010] A further improvement is as follows: an annular gap is formed between the first flange portion and the second flange portion, the width of the proximal end of the slot is not greater than the width of the annular gap, and the distal ends of the slot converge into one endpoint.

[0011] A further improvement is as follows: the first flange is provided with an internal thread, the neck is provided with an external thread, and the external thread and the internal thread are engaged.

[0012] A further improvement is that the lower end of the second flange is located axially between the upper end of the internal thread and the lower end of the external thread.

[0013] A further improvement is that the lower end of the second flange is a truncated cone.

[0014] A further improvement is that the outer peripheral surface of the second flange and the inner peripheral surface of the neck are spaced apart.

[0015] A further improvement is as follows: the cleaning pot has a hose housed in the neck and body of the pot, and the nozzle body has a connecting pipe protruding radially inward toward the body of the pot from the radially inner side of the second flange. The hose abuts against the radially outer side of the connecting pipe and communicates with the connecting pipe.

[0016] The present invention solves the existing technical problems by adopting the following technical solution: a high-pressure cleaner, wherein the high-pressure cleaner includes the cleaning pot described in any of the above-mentioned claims.

[0017] Compared with the prior art, the present invention has the following advantages: the nozzle assembly and cleaning pot of the high-pressure washer are connected by the internal thread on the first flange and the external thread on the neck of the pot, and the second flange extends into the cleaning pot, reducing the risk of cleaning liquid leaking out of the cleaning pot; in addition, a slot is provided between the first flange and the second flange to ensure that the cleaning pot can exchange gases with the outside, effectively preventing negative pressure from occurring in the cleaning pot when the nozzle assembly draws in the cleaning liquid, ensuring the liquid absorption performance between the nozzle assembly and the cleaning pot, which is conducive to improving the mixing effect of the cleaning liquid and the external water flow, and further enhancing the cleaning capacity of the high-pressure washer. [Image Description]

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0019] Figure 1 This is a three-dimensional schematic diagram of the high-pressure cleaner of this utility model;

[0020] Figure 2 yes Figure 1 The diagram shows the structure of the spray nozzle assembly and soap dispenser in the high-pressure washer.

[0021] Figure 3 yes Figure 2 Enlarged view of part A of the nozzle assembly and soap dispenser shown;

[0022] Figure 4 yes Figure 3 The radial cross-sectional view of the nozzle body shown.

[0023] Meaning of the reference numerals in the diagram:

[0024] High-pressure washer 100, outer casing 1

[0025] Main body 11, gripping part 12

[0026] Battery mounting section 13 Trigger switch 2

[0027] Battery pack 3 Water inlet assembly 4

[0028] Nozzle assembly 5 Nozzle body 51

[0029] Flow channel 511 First flange portion 512

[0030] Internal thread 512a Second flange portion 513

[0031] Connector 514, Annular Gap 515

[0032] Slot 515a Slot proximal end 515b

[0033] 515c distal end of slot, 516 truncated cone

[0034] Quick-connect connector 52, nozzle 53

[0035] 531 Flow divider cone 531 532 Flow nozzle

[0036] Cleaning pot 6, pot body 61

[0037] Transition zone 62, neck 63

[0038] External thread 631, hose 64 [Detailed Implementation]

[0039] The terminology used in this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0040] Please see Figure 1 The present invention relates to a high-pressure washer 100, which is suitable for spraying external water under pressure to clean vehicles, yards, ground, etc. The high-pressure washer 100 includes a housing 1, a motor assembly (not shown) housed in the housing 1, a pump assembly (not shown) driven by the motor assembly, and a battery pack 3 that supplies power to the motor assembly. The user can start the high-pressure washer 100 by triggering a switch 2.

[0041] Please continue reading. Figure 1 The outer casing includes a main body 11, a gripping portion 12 extending from the lower end of the main body 11, and a battery mounting portion 13 connected to the lower end of the gripping portion 12. A motor assembly is disposed within the main body 11. In this embodiment, the motor assembly is an external rotor motor, including a motor housing, a stator housed within the motor housing, a rotor connected to the motor housing, and a motor shaft fixed to the rotor. A reduction gear is connected to the lower end of the motor assembly, and the power generated by the rotor's rotation is transmitted to the reduction gear through the motor shaft.

[0042] The pump assembly is also housed in the main body 11, and has a pump body and a pressure chamber formed in the pump body and extending to the left and right. The pump body is connected to the motor housing, and the pressure chamber is the place where the pump assembly pressurizes the external water flow. The plunger extends into the pressure chamber and is driven by the reduction mechanism to reciprocate in the left and right direction. The lower end and the left end of the pump body are respectively connected to the water inlet assembly 4 and the nozzle assembly 5. The reciprocating motion of the plunger can draw in the external water flow from the water inlet assembly 4, and after the external water flow is pressurized, it is ejected from the nozzle assembly 5.

[0043] The trigger switch 2 is mounted on the grip 12 and can pivot relative to the grip 12 via a fulcrum. In this embodiment, the trigger switch 2 is a trigger. The grip 12 is equipped with a micro switch. The user can press the trigger switch 2, and the pressing force is transmitted to the spring on the micro switch to realize electrical conduction. The micro switch can make the grip 12 more compact, which helps to improve the user's operating comfort.

[0044] The battery pack 3 has a pair of guide rails on its end face, and the battery pack 3 is slidably inserted into the battery mounting part 13 through the guide rails; in addition, the nominal voltage of the battery pack 3 can be greater than or equal to 10V and less than or equal to 20V, for example, the nominal voltage of the battery pack 3 can be 12V, 18V, 20V, etc.; furthermore, the number of battery cells contained in a battery cell unit group in the battery pack 3 can be greater than or equal to 3 and less than or equal to 5, for example, the number of battery cells contained in a battery cell unit group can be 3, 4 or 5.

[0045] To improve the cleaning effect of the high-pressure washer 100, a cleaning pot 6 is provided at the lower end of the nozzle assembly 5, so that the cleaning solution in the cleaning pot 6 and the external water flow can mix within the nozzle assembly 5. Please refer to... Figure 1 and combined Figure 2 , Figure 3 and Figure 4 The nozzle assembly 5 includes a nozzle body 51, a quick-connect connector 52, and a nozzle 53. The quick-connect connector 52 is integrally formed on the right end of the nozzle body 51. The nozzle assembly 5 can be quickly assembled and disassembled relative to the main body 11 through the quick-connect connector 52. The nozzle 53 is detachably mounted on the nozzle body 51. A truncated cone 531 protrudes from the inner wall of the nozzle 53 in the axial direction. The truncated cone 531 is generally conical in shape, and one end of the cone extending toward the quick-connect connector 53 forms a vertex. In addition, the nozzle 53 also has several jet holes 532 penetrating through it in the axial direction.

[0046] The nozzle body 51 has an internal flow channel 511 that communicates with the quick-connect connector 52 and the nozzle 53. This allows external water pressurized by the self-pumping assembly to be continuously sprayed into the flow channel 511 through the quick-connect connector 52. The lower end of the nozzle body 51 has a first flange 512 and a second flange 513 protruding from it. The first flange 512 is located radially outside the second flange 513, meaning there is a certain gap between them in the radial direction; this gap is defined as an annular gap 515. Furthermore, the nozzle body... The end face of the body 51 that contacts the annular gap 515 is provided with an arc-shaped and inwardly recessed slot 515a. The slot 515a includes a proximal end 515b and a distal end 515c. The width of the slot 515a decreases from the proximal end 515b to the distal end 515c. In addition, the inner peripheral wall of the first flange portion 512 is provided with an internal thread 512a. The nozzle body 51 is provided with a connector 514 on the inner side of the second flange 513. The connector 514 is concentric with the first flange portion 512 and the second flange portion 513.

[0047] The cleaning pitcher 6 includes a body 61, a neck 63, and a transition zone 62. The body 61 is the area for containing the cleaning liquid and is roughly cylindrical. The edge of the longitudinal section of the body 61 forms a symmetrical curve that is concave towards the radial inward side of the body. The neck 63 is located on the upper side of the body 61 and has external threads 631 on its radial outer wall. The transition zone 62 is frustoconical and connects the body 61 and the neck 63. Its diameter decreases gradually upward along the axial direction. The minimum diameter of the transition zone 62 is approximately equal to the diameter of the neck 63.

[0048] When installing the cleaning bottle 6 onto the nozzle body 51, simply screw the external thread 631 of the bottle neck 63 onto the internal thread 512a of the first flange portion 512. When the bottle neck 63 is fully installed onto the first flange portion 512, the bottle neck 63 is inserted into the annular gap 515, and the axial upper end face of the bottle neck 63 and the nozzle body 51 are in tight contact. In addition, the second flange portion 513 is configured to extend from the upper side of the bottle neck 63 into the interior of the bottle neck 63, and the axial lower end of the second flange portion 513 has a certain taper, which is defined here as a frustum 516. The frustum 516 can intercept the cleaning fluid flowing out from the bottle body 61, further improving the leak-proof performance between the nozzle assembly 5 and the cleaning bottle 6.

[0049] Optionally, the axial length of the second flange portion 513 can be set to be less than the axial length of the neck 63 and greater than any value. For example, the axial length of the second flange portion 513 can be set to be greater than or equal to the distance from the uppermost axial end of the external thread 631 to the uppermost axial end of the neck 63, and less than or equal to the distance from the lowermost axial end of the internal thread 512a to the uppermost axial end of the neck 63.

[0050] While the above setup can effectively reduce the probability of cleaning fluid leakage from the cleaning pot 6, it also results in a high degree of sealing between the nozzle assembly 5 and the cleaning pot 6, making it difficult for external gas to exchange with the gas in the cleaning pot 6. Therefore, when the high-pressure washer 100 draws in the cleaning fluid, it is easy to create negative pressure inside the cleaning pot 6, which further causes the cleaning pot 6 to deform inward, preventing the cleaning fluid from being drawn into the nozzle body 51.

[0051] In this embodiment, the slot 515a is designed to solve the aforementioned problems. Thanks to the slot 515a, outside air can enter the cleaning pot 6 through it. Specifically, the width of the near end 515b of the slot can be designed to be slightly smaller than the diameter of the annular gap 515, the far end 515c of the slot can be set as one end point, and the radial width of the neck 63 of the cleaning pot 6 is set to be smaller than the width of the near end 515b of the slot. This ensures that after the neck 63 is tightened to the nozzle body 51, the upper surface of the neck 63 will not completely cover the near end 515b of the slot, thus preserving the channel for air exchange between the cleaning pot 6 and the outside air. This design satisfies the air permeability requirement while reducing the amount of processing required for the slot 515a. In addition, although the cleaning liquid in the cleaning pot 6 may be drawn into the slot 515a due to suction, the liquid will not overflow from the slot 515a due to its fluid viscosity, thus saving cleaning liquid to some extent.

[0052] Furthermore, the nozzle body 51 has a hose 64 below the connector 514 below it. The hose 64 extends to the axial lower end of the container body 61. The radial inner wall of the hose 64 and the radial outer wall of the connector 514 are tightly fitted together to ensure that gas cannot escape from the connection between the two, thereby improving the suction effect of the nozzle body 51 on the cleaning liquid.

[0053] In this embodiment, a nozzle 53 is also provided at the left end of the nozzle body 51. The inner wall of the nozzle 53 is provided with a flow divider cone 531. The flow divider cone 531 is generally truncated cone-shaped, and the side extending toward the quick connector 52 converges to form an end point. The center line of the nozzle body 51 extends through this end point. In addition, the nozzle 53 has several spray holes 532. When the water flow from the pump assembly is sprayed into the flow channel 511, the cleaning liquid in the cleaning bottle 6 is drawn in to mix with the water flow, and then sprayed out from the spray holes 532 in a cluster flow shape by the action of the flow divider cone 531.

[0054] This utility model is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many alternative solutions exist for the cleaning pot and high-pressure washer of this utility model without departing from its principles and scope. The scope of protection of this utility model is defined by the claims.

Claims

1. A cleaning pot adapted to a high-pressure cleaning machine, the high-pressure cleaning machine comprising a housing, a pump assembly housed in the housing, and a water inlet assembly and a spray tube assembly connected to both sides of the pump assembly, respectively, through which an external water flow passes from the water inlet assembly, through the pump assembly, and out of the spray tube assembly; characterized in that: The cleaning pot is connected to the lance assembly, the lance assembly has a lance body, a first flange portion and a second flange portion extending from the lance body towards the cleaning pot, the cleaning pot has a pot body extending in an axial direction and a pot neck connected to the first flange portion, the pot neck extends between the first flange portion and the second flange portion, the lance body is provided with a slot between the first flange portion and the second flange portion, the slot is adjacent to an end surface of the pot neck.

2. The cleaning pitcher of claim 1 ， characterized in that: The slot extends concavely and arcuately from an end surface of the lance body.

3. The cleaning pitcher of claim 2, wherein: The slot has a slot proximal end and a slot distal end disposed opposite to the slot proximal end, a width of the slot decreases from the slot proximal end to the slot distal end.

4. The cleaning pitcher of claim 3, wherein: An annular gap is formed between the first flange portion and the second flange portion, the width of the slot proximal end is not greater than the width of the annular gap, and the slot distal end converges into an end point.

5. The cleaning pitcher of claim 1, wherein: The first flange portion is provided with an internal thread, the pot neck is provided with an external thread, and the external thread cooperates with the internal thread.

6. The cleaning pitcher of claim 5, wherein: A lower end portion of the second flange portion is located axially between an upper end portion of the internal thread and a lower end portion of the external thread.

7. The cleaning jug of claim 6, wherein: The lower end portion of the second flange portion is a conical frustum.

8. The cleaning pitcher of claim 7, wherein: An outer peripheral surface of the second flange portion is spaced apart from an inner peripheral surface of the pot neck.

9. The cleaning pitcher of claim 1, wherein: The cleaning pot has a hose accommodated in the pot neck and the pot body ， The spout body has a connecting pipe protruding towards the pot body radially inside the second flange part, and the hose abuts radially outside the connecting pipe and communicates with the connecting pipe.

10. A high pressure washer characterized by: The high-pressure cleaner comprises the cleaning pot according to any one of claims 1-9.

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