Water inlet assembly of steam cleaning machine

Abstract

The utility model provides a water inlet assembly of a steam cleaning machine, and belongs to the technical field of machinery. The problem that an existing cleaning machine is short in service life is solved. The water inlet assembly of the steam cleaning machine comprises a machine shell, a water inlet pipe, a high-pressure pump and a low-pressure pump, the water inlet pipe, the high-pressure pump and the low-pressure pump are arranged in the machine shell, the outer end of the water inlet pipe extends out of the machine shell, and water inlet holes of the high-pressure pump and the low-pressure pump are communicated with the inner end of the water inlet pipe. A one-way assembly is arranged in the lower end of the water guide pipe and comprises a check ring and an annular valve seat which are sequentially fixed in the water guide pipe from top to bottom, sealing is formed between the outer wall of the annular valve seat and the inner wall of the water guide pipe, and a ball is arranged between the check ring and the annular valve seat. The inner wall, located at the upper port, of the annular valve seat is a conical surface matched with the ball, and the lower side of the ball can stretch into the annular valve seat under the gravity action of the ball so as to separate the high-pressure pump water outlet and the water outlet. The LED lamp is long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a steam cleaning machine, in particular to a water inlet component of a steam cleaning machine. Background Art

[0002] A steam cleaner is a device that uses high-temperature and high-pressure steam for cleaning. It can accelerate the movement of dirt molecules through high-temperature steam, destroy the binding force between them, and thus effectively eliminate various stubborn stains.

[0003] An existing steam cleaning machine, such as a steam cleaning machine disclosed in the Chinese Patent Library (application number: 202223365855.3), includes a shell, a water pipe, a gun head, a water inlet, a water spray outlet, a battery, a switch button, a first control panel, a wire, a solenoid valve, a low-pressure pump, a high-pressure pump, a heating module, a three-way one-way valve, a spring, a block and a second control panel. A water inlet is arranged on the left side of the shell, the gun head is connected to the shell through a water pipe, a water spray outlet is arranged at the end of the water pipe, a battery is installed inside the gun head, and a switch button is installed at the lower part of the gun head, the water inlet is connected to the solenoid valve through a water pipe, a low-pressure pump is arranged on the right side of the solenoid valve, and a high-pressure pump is arranged side by side with the low-pressure pump, a three-way one-way valve is arranged on the right side of the high-pressure pump, and the three-way one-way valve is connected to the heating module through the water pipe; a spring is arranged inside the three-way one-way valve, and a block is arranged inside the spring.

[0004] In the above-mentioned cleaning machine, the one-way valve connected to the high-pressure pump adopts a spring-type structure. Since the fluid pressure from the high-pressure pump is too high, the spring is easily over-compressed for a long time, which affects its service life. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a water inlet component for a steam cleaning machine with a long service life.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a water inlet assembly for a steam cleaning machine comprises a casing, a water inlet pipe, a high-pressure pump and a low-pressure pump which are all arranged in the casing, the outer end of the water inlet pipe extends out of the casing, the water inlet holes of the high-pressure pump and the low-pressure pump are connected to the inner end of the water inlet pipe, a water guide pipe is also vertically fixed in the casing, the upper end of the water guide pipe is connected to the water outlet hole of the low-pressure pump through a one-way valve, the lower end of the water guide pipe is connected to the water outlet hole of the high-pressure pump, and a one-way valve is arranged in the lower end of the water guide pipe to make the lower end of the water guide pipe unidirectional from bottom to top A one-way component, a drain outlet is provided in the middle of the water pipe, and is characterized in that the one-way component includes a retaining ring and an annular valve seat which are fixed in the water pipe from top to bottom in sequence, and the retaining ring, the annular valve seat and the water pipe are coaxially arranged; a seal is formed between the outer wall of the annular valve seat and the inner wall of the water pipe, a ball is provided between the retaining ring and the annular valve seat, the inner wall of the annular valve seat at the upper port is a conical surface matching the ball, and the lower side of the ball can extend into the annular valve seat under the action of the ball's own gravity to separate the water outlet of the high-pressure pump and the drain outlet.

[0007] The ball is confined between the retaining ring and the annular valve seat, and enters the annular valve seat smoothly and accurately under the guidance of the conical surface. That is, the one-way check process of the one-way component only relies on the sliding of the ball, which effectively reduces the wear and tear of parts and extends the life of the one-way component, thereby greatly improving the life of the water inlet component of the steam cleaning machine.

[0008] In the above-mentioned steam cleaning machine water inlet assembly, an annular groove is provided on the inner wall of the upper end of the above-mentioned annular valve seat, and a rubber ring is provided in the annular groove. The rubber ring can hold the lower side of the ball and form a seal to enhance the effect of the ball blocking the water outlet and drain port of the high-pressure pump, so that the water inlet assembly can operate more stably.

[0009] In the above-mentioned steam cleaning machine water inlet assembly, the water guide pipe includes an upper pipe and a lower pipe both of which are arranged vertically, the lower end of the upper pipe is inserted into the upper end of the lower pipe and the two are sealed and fixedly connected, the above-mentioned drain port and one-way valve are both arranged on the upper pipe, and the retaining ring is fixed at the lower end of the upper pipe, the annular valve seat is fixed in the lower pipe, and the lower end of the lower pipe is connected to the water outlet of the high-pressure pump. The water guide pipe adopts a split structure, which is easy to design and install.

[0010] In the above-mentioned steam cleaning machine water inlet assembly, an annular positioning groove is provided on the outer wall of the annular valve seat, a sealing ring is provided in the positioning groove, and the outer wall of the sealing ring contacts and seals with the inner wall of the water pipe, so as to effectively enhance the sealing effect formed between the annular valve seat and the water inlet pipe, so that water can be completely discharged upward through the annular valve seat, thereby enhancing the working stability of the water inlet assembly.

[0011] In the above-mentioned steam cleaning machine water inlet assembly, an annular limit seat is formed on the inner wall of the lower tube, and the annular valve seat is inserted into the lower tube and pressed on the limit seat, that is, the annular valve seat is inserted into the lower tube from top to bottom for installation, which is convenient for assembly.

[0012] In the above-mentioned steam cleaning machine water inlet assembly, the type of high-pressure pump is a swash plate pump to provide greater power and improve the efficiency and performance of the cleaning machine.

[0013] In the above-mentioned steam cleaning machine water inlet assembly, the high-pressure pump includes a pump head and a transmission box seat, and the pump head is fixedly connected to the transmission box seat by multiple screws arranged horizontally; the housing is provided with an inspection port arranged directly opposite to the pump head and a baffle plate for shielding the inspection port can be detachably fixed, the screw head is arranged directly opposite to the inspection port, and the size of the pump head is smaller than the opening size. The pump head and the screw heads for fixing the pump head are both facing the inspection port, so that the pump head can be disassembled and assembled through the inspection port in actual use, which is convenient for maintenance.

[0014] In the above-mentioned steam cleaning machine water inlet assembly, the baffle is fixedly connected to the casing by a plurality of bolts, and the bolts are arranged horizontally to facilitate the disassembly and assembly of the baffle.

[0015] In the above-mentioned steam cleaning machine water inlet assembly, an annular step matching the baffle is formed on the inner wall of the inspection port, and the baffle is inserted into the annular step and pressed on the bottom surface of the annular step, so that the baffle can be installed in place at one time, further facilitating the disassembly and assembly of the baffle.

[0016] In the above-mentioned steam cleaning machine water inlet assembly, the inner wall of the inspection port extends into the casing to form a support, the number of supports and bolts is the same and the positions correspond one to one, each support has an internal threaded tube that cooperates with the bolt, and the bolt rod passes through the baffle and is screwed into the corresponding internal threaded tube.

[0017] Compared with the prior art, the water inlet assembly of the steam cleaning machine has the following advantages:

[0018] 1. The ball is confined between the retaining ring and the annular valve seat, and enters the annular valve seat smoothly and accurately under the guidance of the cone surface, that is, the one-way check process of the one-way component only relies on the sliding of the ball, which effectively reduces the wear and tear of parts and prolongs the life of the one-way component, thereby greatly improving the life of the water inlet component of this steam cleaning machine.

[0019] 2. The pump head and the screw heads used to fix the pump head are facing the inspection port, so that the pump head can be disassembled and assembled through the inspection port during actual use, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a steam cleaning machine.

[0021] Figure 2 It is a three-dimensional schematic diagram of the steam cleaning machine with the baffle removed.

[0022] Figure 3 It is a cross-sectional schematic diagram of the water inlet assembly of the steam cleaning machine.

[0023] Figure 4It is a three-dimensional schematic diagram of the water inlet assembly of the steam cleaning machine.

[0024] In the figure, 1, casing; 1a, inspection port; 1a1, annular step; 1b, support; 1b1, internal threaded pipe; 2, water inlet pipe; 3, high-pressure pump; 3a, pump head; 3b, transmission box seat; 3c, motor; 4, low-pressure pump; 5, water guide pipe; 5a, upper pipe; 5b, lower pipe; 5b1, limit seat; 6, one-way valve; 7, retaining ring; 8, annular valve seat; 8a, cone; 9, ball; 10, rubber ring; 11, sealing ring; 12, baffle; 13, bolt. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, the water inlet assembly of the steam cleaning machine includes a housing 1 and a water inlet pipe 2, a high-pressure pump 3 and a low-pressure pump 4, all of which are arranged in the housing 1. Among them, the outer end of the water inlet pipe 2 extends out of the housing 1, and the water inlet holes of the high-pressure pump 3 and the low-pressure pump 4 are both connected to the inner end of the water inlet pipe 2.

[0027] Specifically,

[0028] A water pipe 5 is also vertically fixed in the housing 1, and the upper end of the water pipe 5 is connected to the water outlet of the low-pressure pump 4 through a one-way valve 6, and the one-way valve 6 is unidirectional from top to bottom. In the actual product, the water outlet end of the one-way valve 6 is connected to the upper end of the water pipe 5, and the water inlet end of the one-way valve 6 is connected to the water outlet of the low-pressure pump 4 through a joint. The lower end of the water pipe 5 is connected to the water outlet of the high-pressure pump 3, and a one-way component is provided in the lower end of the water pipe 5 to make the lower end of the water pipe 5 unidirectional from bottom to top, and a drain port is provided in the middle of the water pipe 5.

[0029] like Figure 3 and Figure 4 As shown, the one-way assembly includes a retaining ring 7 and an annular valve seat 8 which are fixed in the water pipe 5 from top to bottom in sequence, and the retaining ring 7, the annular valve seat 8 and the water pipe 5 are coaxially arranged. Among them, a seal is formed between the outer wall of the annular valve seat 8 and the inner wall of the water pipe 5; a ball 9 is arranged between the retaining ring 7 and the annular valve seat 8, and the inner wall of the annular valve seat 8 at the upper end is a conical surface 8a matching the ball 9, and the diameter of the conical surface 8a gradually decreases from top to bottom, and the lower side of the ball 9 can extend into the annular valve seat 8 under the action of the ball 9's own gravity to isolate the water outlet and the drain port of the high-pressure pump 3.

[0030] The ball 9 is confined between the retaining ring 7 and the annular valve seat 8, and enters the annular valve seat 8 smoothly and accurately under the guidance of the conical surface 8a, that is, the one-way check process of the one-way component only relies on the sliding of the ball 9, which effectively reduces the wear and tear of parts and extends the life of the one-way component, thereby greatly improving the life of the water inlet component of the steam cleaning machine.

[0031] Further explanation, an annular groove is provided on the inner wall of the upper end of the annular valve seat 8, and the annular groove and the annular valve seat 8 are coaxially arranged. A rubber ring 10 is provided in the annular groove, and the rubber ring 10 can hold the lower side of the ball 9 tightly and form a seal to enhance the effect of the ball 9 blocking the water outlet and the drain port of the high-pressure pump 3, so that the water inlet assembly can operate more stably. Naturally, the contact between the side wall of the ball 9 and the conical surface 8a can also block the water outlet and the drain port of the high-pressure pump 3.

[0032] In this embodiment,

[0033] The water pipe 5 is a split structure, including an upper pipe 5a and a lower pipe 5b, both of which are vertically arranged. The lower end of the upper pipe 5a is inserted into the upper end of the lower pipe 5b and the two are sealed and fixedly connected. Preferably, the upper pipe 5a and the lower pipe 5b are connected by threads for easy assembly. Among them, the drain port and the one-way valve 6 are both arranged on the upper pipe 5a, and the retaining ring 7 is fixed at the lower end of the upper pipe 5a; the annular valve seat 8 is fixed in the lower pipe 5b, and the lower end of the lower pipe 5b is connected to the water outlet of the high-pressure pump 3.

[0034] The installation method of the annular valve seat 8 is as follows: an annular limiting seat 5b1 is formed on the inner wall of the lower tube 5b, and the annular valve seat 8 is inserted into the lower tube 5b and pressed on the limiting seat 5b1, that is, the annular valve seat 8 is inserted into the lower tube 5b from top to bottom for installation, which is convenient for assembly. Further explanation, an annular positioning groove is provided on the outer wall of the annular valve seat 8, and a sealing ring 11 is provided in the positioning groove, and the outer wall of the sealing ring 11 contacts and seals with the inner wall of the water guide pipe 5, so as to effectively strengthen the sealing effect formed between the annular valve seat 8 and the water inlet pipe 2, so that water can be completely discharged upward through the annular valve seat 8, and the working stability of the water inlet component is enhanced.

[0035] like Figure 1 , Figure 2 and Figure 4As shown, the type of low-pressure pump 4 is an electromagnetic pump; the type of high-pressure pump 3 is a swash plate pump to provide greater power and improve the efficiency and performance of the cleaning machine. The high-pressure pump 3 includes a pump head 3a, a transmission box seat 3b and a motor 3c3c, wherein the motor 3c3c preferably adopts a brushless motor 3c3c; the pump head 3a is fixedly connected to the transmission box seat 3b by a plurality of horizontally arranged screws; the housing 1 is provided with an inspection port 1a arranged opposite to the pump head 3a and a baffle 12 detachably fixed thereon for shielding the inspection port 1a, the screw head is arranged opposite to the inspection port 1a, and the size of the pump head 3a is smaller than the opening size. The pump head 3a and the screw heads for fixing the pump head 3a are both facing the inspection port 1a, so that the pump head 3a can be disassembled and assembled through the inspection port 1a in actual use, which is convenient for maintenance.

[0036] In this embodiment, the baffle 12 is fixedly connected to the housing 1 by a plurality of bolts 13, and the bolts 13 are arranged horizontally to facilitate the disassembly and assembly of the baffle 12. Specifically, the inner wall of the inspection port 1a extends into the housing 1 to form a support 1b, and the number of the support 1b and the bolts 13 are the same and the positions correspond one to one. Each support 1b has an internal threaded tube 1b1 that matches the bolt 13, and the rod of the bolt 13 passes through the baffle 12 and is screwed into the corresponding internal threaded tube 1b1. Further explanation, an annular step 1a1 matching the baffle 12 is formed on the inner wall of the inspection port 1a, and the baffle 12 is inserted into the annular step 1a1 and pressed on the bottom surface of the annular step 1a1, so that the baffle 12 can be installed in place at one time, which further facilitates the disassembly and assembly of the baffle 12.

[0037] In the actual product, the bolt 13 is arranged on the upper side of the baffle 12, and a buckle for hooking the edge of the inspection port 1a is formed on the inner wall of the lower side of the baffle 12.

[0038] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A water inlet assembly for a steam cleaning machine, comprising a housing (1) and a water inlet pipe (2), a high-pressure pump (3) and a low-pressure pump (4) all arranged in the housing (1), the outer end of the water inlet pipe (2) extending out of the housing (1), the water inlet holes of the high-pressure pump (3) and the low-pressure pump (4) both being connected to the inner end of the water inlet pipe (2), a water guide pipe (5) being vertically fixed in the housing (1), the upper end of the water guide pipe (5) being connected to the water outlet hole of the low-pressure pump (4) via a one-way valve (6), the lower end of the water guide pipe (5) being connected to the water outlet hole of the high-pressure pump (3), and a one-way assembly for enabling the lower end of the water guide pipe (5) to be one-way from bottom to top being arranged in the lower end of the water guide pipe (5), a drainage port being arranged in the middle of the water guide pipe (5), characterized in that: The one-way component comprises a retaining ring (7) and an annular valve seat (8) which are fixed in sequence from top to bottom in the water conduit (5), and the retaining ring (7), the annular valve seat (8) and the water conduit (5) are coaxially arranged; a seal is formed between the outer wall of the annular valve seat (8) and the inner wall of the water conduit (5); a ball (9) is arranged between the retaining ring (7) and the annular valve seat (8); the inner wall of the annular valve seat (8) at the upper end is a conical surface (8a) matching the ball (9), and the lower side of the ball (9) can extend into the annular valve seat (8) under the action of the ball (9)'s own weight to isolate the water outlet and the drain port of the high-pressure pump (3).

2. The water inlet assembly of the steam cleaning machine according to claim 1, characterized in that: An annular groove is provided on the inner wall of the upper end of the annular valve seat (8), and a rubber ring (10) is provided in the annular groove. The rubber ring (10) can hold the lower side of the ball (9) tightly and form a seal.

3. The water inlet assembly of the steam cleaning machine according to claim 1, characterized in that: The water guide pipe (5) comprises an upper pipe (5a) and a lower pipe (5b) both of which are arranged vertically. The lower end of the upper pipe (5a) is inserted into the upper end of the lower pipe (5b) and the two are sealed and fixedly connected. The above-mentioned drain port and one-way valve (6) are both arranged on the upper pipe (5a), and the retaining ring (7) is fixed at the lower end of the upper pipe (5a). The annular valve seat (8) is fixed in the lower pipe (5b), and the lower end of the lower pipe (5b) is connected to the water outlet of the high-pressure pump (3).

4. The water inlet assembly of the steam cleaning machine according to claim 1, 2 or 3, characterized in that: An annular positioning groove is provided on the outer wall of the annular valve seat (8), a sealing ring (11) is provided in the positioning groove, and the outer wall of the sealing ring (11) contacts and seals with the inner wall of the water conduit (5).

5. The water inlet assembly of the steam cleaning machine according to claim 3, characterized in that: An annular limiting seat (5b1) is formed on the inner wall of the lower tube (5b), and the annular valve seat (8) is inserted into the lower tube (5b) and pressed onto the limiting seat (5b1).

6. The water inlet assembly of the steam cleaning machine according to claim 1, characterized in that: The high-pressure pump (3) is of the swash plate type.

7. The water inlet assembly of the steam cleaning machine according to claim 6, characterized in that: The high-pressure pump (3) comprises a pump head (2a) and a transmission box seat (3b), and the pump head (2a) is fixedly connected to the transmission box seat (3b) by means of a plurality of screws arranged horizontally; the casing (1) is provided with an inspection opening (1a) arranged opposite to the pump head (2a) and a baffle (12) for shielding the inspection opening (1a) is detachably fixed thereto, the screw heads are arranged opposite to the inspection opening (1a), and the size of the pump head (2a) is smaller than the size of the opening.

8. The water inlet assembly of the steam cleaning machine according to claim 7, characterized in that: The baffle (12) is fixedly connected to the casing (1) via a plurality of bolts (13), and the bolts (13) are arranged horizontally.

9. The water inlet assembly of the steam cleaning machine according to claim 8, characterized in that: An annular step (1a1) matching the baffle (12) is formed on the inner wall of the inspection opening (1a), and the baffle (12) is inserted into the annular step (1a1) and pressed on the bottom surface of the annular step (1a1).

10. The water inlet assembly of a steam cleaning machine according to claim 8 or 9, characterized in that: The inner wall of the inspection opening (1a) extends into the casing (1) to form a support (1b); the number of the supports (1b) and the positions of the bolts (13) are the same and correspond one to one; each support (1b) has an internal threaded tube (1b1) that matches the bolt (13); and the rod of the bolt (13) passes through the baffle (12) and is screwed into the corresponding internal threaded tube (1b1).

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