A steam cleaning main unit with a high stability boiler device

Abstract

A steam cleaning main machine with high stability boiler device, including steam shell, which is provided with water adding port and steam outlet port; steam boiler, which is communicated with water adding port and steam outlet port respectively; steam boiler is composed of boiler cover shell and boiler base and is formed with steam generating chamber; a plurality of upper connecting parts are protruded on the outer wall of boiler cover shell, a plurality of lower connecting parts are protruded on the outer wall of boiler base, upper connecting parts and lower connecting parts are one-to-one corresponding and are provided with through holes, a fastener is inserted into each through hole to fix boiler cover shell and boiler base into an integral whole; the inner bottom surface of steam shell is upwardly protruded with a lifting column, a positioning core rod is arranged on the lifting column, a shock absorbing rubber sleeve is sleeved on the positioning core rod, and the fastener is inserted into the shock absorbing rubber sleeve. The present application combines rigid fixation and flexible damping design, and through the synergistic effect of upper connecting part, lower connecting part, fastener and shock absorbing rubber sleeve, the installation stability can be effectively improved and the hidden danger can be reduced.

Description

Technical Field

[0001] This utility model relates to a steam cleaning host for a boiler device with high stability. Background Technology

[0002] Steam cleaners, also known as saturated steam cleaners, utilize the high temperature and pressure of saturated steam to clean oil stains and dirt from the surface of parts, vaporizing and evaporating them. They can clean any tiny gaps and holes, peeling off and removing oil stains and residues, achieving high efficiency, water conservation, cleanliness, dryness, and low cost, replacing expensive dry ice cleaning. The working principle of a steam cleaner is that the high-temperature steam accelerates the movement of molecules on the dirt surface, breaking down the binding forces between them to eliminate various stubborn stains. Simultaneously, it completely eliminates various bacteria, mites, microorganisms, and pathogens attached to objects. Equipped with nozzles, brushes, and other convenient accessories, it is environmentally friendly, requiring no cleaning agents, and offers high efficiency in rapid dirt removal and sterilization.

[0003] A prior art example, referring to patent document CN116839006A, discloses a high-temperature and high-pressure steam boiler and a control method for it. The boiler includes a pot body with a vaporization chamber inside and a heating component at the bottom. An extension seat is provided on the upper end plate of the pot body, and a cover plate is sealed on the upper port of the extension seat, thus forming a separation chamber between the cover plate, the extension seat, and the pot body. An exhaust nozzle is provided on the cover plate, and a first valve seat is provided on the upper end plate of the pot body. A pressure control component is provided inside the first valve seat, and the exhaust port of the first valve seat and the exhaust nozzle are spaced apart horizontally on the horizontal plane. In this high-temperature and high-pressure steam boiler, the pot body temperature can be conducted to the separation chamber. The steam experiences less temperature decay and less condensation when passing through the separation chamber. Steam is sprayed from the first valve seat onto the cover plate, and the hot steam impacts the cover plate, changing its path to achieve water-vapor separation. Water droplets remain in the separation chamber under gravity, resulting in drier, high-temperature steam.

[0004] In summary, existing boilers (steam generating devices) of this type are fixed to the shell with a single screw, without additional protection for the installed components. This results in some vibration during boiler operation, and impacts to the shell are easily transmitted to the boiler, potentially leading to various safety hazards and equipment malfunctions. For example: 1. Loosening and detachment of components: Insecure installation can cause bolts to loosen and welds to crack due to vibrations during boiler operation (such as those generated by steam circulation and motor operation); 2. Equipment deformation and displacement: The boiler's weight is significant; if the fixed supports and base are not secure, it may tilt, shift, or even overturn entirely during long-term operation. This can damage the boiler itself and may also impact surrounding electrical components, pipes, or other equipment, causing a chain reaction of failures; 3. Steam leakage can cause safety accidents. Unstable installation may cause cracks or gaps in the boiler body or interfaces. When high-pressure steam leaks, it will form a high-temperature jet, which may burn operators or cause secondary injuries due to the steam jet impacting surrounding objects; 4. Poor circuit contact and short circuits. Unstable installation may cause the insulation layer of the wires and cables connected to the boiler to wear and the joints to loosen due to vibration, which may lead to electrical faults such as short circuits and leakage; 5. Accelerated component wear. Continuous vibration and instability will cause the internal pipes, heat exchangers, burners and other components of the boiler to be subjected to additional stress, resulting in metal fatigue, weld cracking and shortening the service life of the equipment. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a steam cleaning host with a highly stable boiler device.

[0006] The technical solution of this utility model to solve its technical problem is: a steam cleaning host with a highly stable boiler device, comprising:

[0007] The steam casing has a water inlet port and a steam outlet port;

[0008] A steam boiler is installed inside a steam shell, and the steam boiler is connected to the water inlet port and the steam outlet port respectively.

[0009] The steam boiler consists of a boiler casing and a boiler base, forming a steam generation chamber;

[0010] The boiler cover has several upper connecting parts protruding on its outer wall, and the boiler base has several lower connecting parts protruding on its outer wall. The upper connecting parts and the lower connecting parts correspond one-to-one and have through holes. Fasteners are inserted into each through hole to fix the boiler cover and the boiler base into one piece.

[0011] The inner bottom surface of the steam shell has several raised columns protruding upwards. A positioning core rod is provided on the raised column. A shock-absorbing rubber sleeve is fitted on the positioning core rod. The lower end of the fastener is inserted into the shock-absorbing rubber sleeve from top to bottom.

[0012] The above-mentioned structural design combines rigid fixation with flexible shock absorption. Through the synergistic effect of the upper connecting part, lower connecting part, fasteners and shock-absorbing rubber sleeve, the installation stability can be effectively improved and potential hazards can be reduced. First, the rigid fixing of the upper and lower connecting parts ensures the basic fixation of the boiler shell and boiler base, bearing the weight of the equipment itself and the static load during operation. The rigid connection can avoid overall displacement or overturning caused by loose installation, directly solving problems such as component detachment and equipment deformation. Second, the positioning guide of the lifting column and positioning core rod: the lifting column inside the steam shell protrudes upward, and the positioning core rod is fixed at the top of the lifting column, providing a vertical insertion guide path for the fasteners, ensuring accurate alignment of the holes of the upper and lower connecting parts during installation. The positioning core rod can prevent the fasteners from shifting during insertion, avoiding stress concentration caused by installation deviation, and improving connection accuracy. Third, the flexible shock absorption design of the damping rubber sleeve: the damping rubber sleeve is fitted on the positioning core rod, and the lower end of the fastener is inserted into the rubber sleeve. The elastic material of the rubber sleeve absorbs the vibration during equipment operation, reducing the impact of vibration on the fasteners, preventing bolts from loosening due to long-term vibration, solving the problem of bolt loosening, and at the same time isolating the vibration transmission in the rigid connection, reducing frictional noise and metal fatigue risk between the boiler shell and boiler base.

[0013] In some preferred embodiments of this utility model, an accommodating space is formed between the inner bottom surface of the steam shell and the lower end surface of the steam boiler;

[0014] A temperature controller is installed on the bottom surface of the steam boiler, and the temperature controller is located in the accommodating space.

[0015] The steam boiler has a heating tube, the wiring end of which protrudes from the lower end of the steam boiler and is located in the accommodating space.

[0016] Optionally, the lower end face of the steam boiler also has an integrally formed wire clamp, and the wiring terminal of the heating tube is connected to a cable, at least partially of which can be inserted into the wire clamp.

[0017] Optionally, the bottom surface of the boiler base is recessed with several detection slots, the detection end of the temperature controller extends into the detection slots, and the detection slots are located above the heating tube.

[0018] In some preferred embodiments of this utility model, a sealing groove is formed at the upper end of the boiler base, and a sealing element is provided in the sealing groove;

[0019] The lower end of the boiler cover is provided with a ring of pressure ribs, which press against the sealing element so that a sealing fit is formed between the boiler base and the boiler cover through the sealing element.

[0020] The lower connecting part is located on the outside of the sealing groove.

[0021] In some preferred embodiments of this utility model, the lower connecting part is provided with a plurality of balancing grooves, and the through hole is located between the balancing grooves and the sealing grooves.

[0022] Optionally, multiple wedge-shaped support ribs are protruding on the outer walls of the boiler cover and the boiler base. The wedge-shaped support ribs are connected to the upper connecting part and the lower connecting part respectively, and the wedge-shaped support ribs and the boiler cover / boiler base are integrally formed parts.

[0023] In some preferred embodiments of this utility model, the upper end of the boiler casing extends upward to form a chimney section, the water inlet port is disposed on the chimney section, and an opening and closing valve cover is provided at the water inlet port.

[0024] Furthermore, a pressure relief valve is provided in the opening and closing valve cover.

[0025] In some preferred embodiments of this utility model, the sidewalls of the boiler casing and the boiler base are both composed of recessed sections and protruding sections, and the recessed sections and protruding sections are arranged at intervals.

[0026] The fasteners include a bolt and a nut. The bolt passes through the through hole from top to bottom and enters the shock-absorbing rubber sleeve. The nut is threaded onto the bolt and abuts between the lower end of the lower connection and the upper end of the shock-absorbing rubber sleeve.

[0027] The beneficial effects of this utility model are as follows:

[0028] I. The installation design combines rigid fixing with flexible vibration damping. Through the combination of positioning core rods and damping rubber sleeves, it ensures a stable connection between the boiler casing and the base while effectively isolating vibration transmission, fundamentally reducing potential problems such as loose bolts, steam leakage, and component fatigue caused by unstable installation. However, attention must be paid to the temperature resistance of the materials, installation accuracy, and regular maintenance to ensure the long-term effectiveness of the vibration damping structure.

[0029] 2. Positioning and guiding of the lifting column and positioning core rod: The lifting column inside the steam shell protrudes upward, and the positioning core rod is fixed to the top of the lifting column, providing a guide path for the vertical insertion of the fastener, ensuring that the holes of the upper and lower connecting parts are accurately aligned during installation. The positioning core rod can prevent the fastener from shifting when inserted, avoid stress concentration caused by installation deviation, and improve connection accuracy.

[0030] 3. The flexible damping design of the shock-absorbing rubber sleeve: The shock-absorbing rubber sleeve is fitted on the positioning core rod, and the lower end of the fastener is inserted into the inside of the rubber sleeve. The elastic material of the rubber sleeve absorbs the vibration during equipment operation, reduces the impact of vibration on the fastener, prevents the bolt from loosening due to long-term vibration, solves the problem of bolt loosening, and at the same time isolates the vibration transmission in the rigid connection, reducing the friction noise and metal fatigue risk between the boiler shell and the boiler base. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model.

[0032] Figure 2 This is a schematic diagram of the steam boiler in this utility model.

[0033] Figure 3 This is an exploded view of the steam boiler in this utility model.

[0034] Figure 4 This is a cross-sectional view of the present invention.

[0035] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0036] Figure 6 This is a schematic diagram of the boiler casing.

[0037] Figure 7 This is a schematic diagram of the upper structure of the boiler base.

[0038] Figure 8 This is a schematic diagram of the lower structure of the boiler base.

[0039] In the diagram: 1. Steam shell; 11. Water inlet port; 12. Steam outlet port; 13. Lifting column; 131. Positioning core rod; 14. Accommodation space; 2. Steam boiler; 21. Boiler cover; 211. Upper connection part; 212. Chimney section; 22. Boiler base; 221. Lower connection part; 222. Detection groove; 223. Sealing groove; 224. Seal; 225. Balance groove; 23. Steam generation chamber; 24. Through hole; 25. Fastener; 251. Bolt; 252. Nut; 26. Cable clamp; 27. Heating tube; 28. Wedge-shaped support rib; 291. Recessed section; 292. Protruding section; 3. Shock-absorbing rubber sleeve; 4. Opening and closing valve cover; 41. Pressure relief valve; 5. Thermostat. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific descriptions of the present invention, and their purpose is to enable those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limitations on the present invention.

[0041] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Example 1

[0044] Reference Figures 1 to 8 A steam cleaning host with a highly stable boiler device includes: a steam shell 1, which has a water inlet port 11 and a steam outlet port 12; a steam boiler 2, which is disposed inside the steam shell 1 and is connected to the water inlet port 11 and the steam outlet port 12 respectively; the steam boiler 2 is composed of a boiler cover 21 and a boiler base 22 and forms a steam generating chamber 23; wherein, the outer wall of the boiler cover 21 is provided with a plurality of upper connecting parts 211 protruding, and the outer wall of the boiler base 22 is provided with a plurality of upper connecting parts 211 protruding. The wall has several lower connecting parts 221 protruding, and the upper connecting parts 211 and the lower connecting parts 221 are corresponding one to one and have through holes 24. Fasteners 25 are inserted into each through hole 24 to fix the boiler cover 21 and the boiler base 22 into one piece. The inner bottom surface of the steam shell 1 has several lifting columns 13 protruding upward. The lifting columns 13 are provided with positioning core rods 131. The positioning core rods 131 are fitted with shock-absorbing rubber sleeves 3. The lower end of the fasteners 25 is inserted into the shock-absorbing rubber sleeves 3 from top to bottom.

[0045] The above structural design combines rigid fixing with flexible vibration damping. Through the synergistic effect of the upper connecting part 211, lower connecting part 221, fastener 25, and shock-absorbing rubber sleeve 3, the installation stability can be effectively improved and potential hazards reduced. Firstly, the rigid fixing of the upper connecting part 211 and lower connecting part 221 ensures the basic fixation of the boiler casing 21 and boiler base 22, bearing the weight of the equipment itself and the static load during operation. The rigid connection avoids overall displacement or overturning due to loose installation, directly solving problems such as component detachment and equipment deformation. Secondly, the positioning and guiding of the lifting column 13 and positioning core rod 131: the lifting column 13 inside the steam casing 1 protrudes upwards, and the positioning core rod 131 is fixed to the top of the lifting column 13, providing a guide path for the vertical insertion of the fastener 25, ensuring precise alignment of the holes in the upper and lower connecting parts 221 during installation. The positioning core rod 131 can prevent the fastener 25 from shifting when it is inserted, avoid stress concentration caused by installation deviation, and improve connection accuracy. The third is the flexible shock absorption design of the damping sleeve 3. The damping sleeve 3 is fitted on the positioning core rod 131, and the lower end of the fastener 25 is inserted into the sleeve. The elastic material of the sleeve absorbs the vibration during equipment operation, reduces the impact of vibration on the fastener 25, prevents the bolt 251 from loosening due to long-term vibration, solves the problem of bolt 251 loosening, and isolates the vibration transmission in the rigid connection, reducing the friction noise and metal fatigue risk between the boiler cover 21 and the boiler base 22.

[0046] Based on the lifting column 13 and the shock-absorbing rubber pad, the installation height of the steam boiler 2 can be effectively raised, thereby forming an accommodating space 14 between the inner bottom surface of the steam shell 1 and the lower end surface of the steam boiler 2; a thermostat 5 is provided on the bottom surface of the steam boiler 2, and the thermostat 5 is located in the accommodating space 14; the steam boiler 2 has a heating tube 27, the wiring terminal of the heating tube 27 protrudes from the lower end of the steam boiler 2, and the wiring terminal of the heating tube 27 is located in the accommodating space 14. The core functions of the accommodating space 14 are: firstly, to provide an independent installation area for components such as the thermostat 5 and the wiring terminals of the heating tube 27, avoiding direct contact with high-temperature steam, and to isolate electrical components from the heating chamber by using the space layering; secondly, to facilitate heat dissipation and maintenance, the accommodating space 14 can form an air circulation channel to assist the thermostat 5 in heat dissipation, and the centralized arrangement of components facilitates later maintenance; and thirdly, the layout of the wiring terminals of the heating tube 27 is considered, with the terminals protruding into the accommodating space 14, which facilitates the connection and fixation of external cables and avoids the wiring difficulties caused by placing the wiring ports on the side or top of the boiler.

[0047] Reference Figure 8Optionally, the lower end face of the steam boiler 2 also has an integrally formed cable clip 26. The wiring terminals of the heating tube 27 are connected to cables (a standard accessory, not shown in the figure), and at least part of the cables can be inserted into the cable clip 26. The cable clip 26, by mechanically fixing and organizing the cables of the heating tube 27, optimizes the reliability and safety of the electrical connection, providing protection against pulling, vibration, and neat wiring. Furthermore, the cable clip 26 is integrally formed with the steam boiler 2 body, avoiding the problems of high-temperature aging and vibration breakage of traditional plastic cable ties or individual clamps, and can withstand ambient temperatures ≥200℃ and continuous vibration. In addition, it improves wiring and installation efficiency: no additional accessories (such as screws or cable ties) are required; the cables are fixed simply by inserting them, reducing assembly steps and making it suitable for automated production.

[0048] Reference Figure 7 Optionally, the bottom surface of the boiler base 22 is recessed with several detection slots 222, and the detection end of the temperature controller 5 extends into the detection slots 222, with the detection slots 222 located above the heating tube 27. The integrated design of the detection slots 222 and the temperature controller 5 allows for close-range temperature measurement by directly inserting the detection end of the temperature controller 5 into the detection slots 222 above the heating tube 27, achieving accurate temperature monitoring of the core heat source. Furthermore, the upward-recessed detection slots 222 form a semi-enclosed space, reducing interference from steam flow inside the steam shell 1 on temperature measurement (such as localized temperature fluctuations caused by steam vortices), allowing the temperature controller 5 to more directly sense the radiant heat from the heating tube 27. Furthermore, the detection groove 222 provides structural protection and installation positioning functions. The recessed detection groove 222 can prevent the detection end of the thermostat 5 from being hit by external tools or steam jets. The shape of the detection groove 222 can physically limit the detection end of the thermostat 5, ensuring that the temperature measuring point is always aligned with the center area of ​​the heating tube 27 during installation, and avoiding inaccurate temperature measurement due to installation deviation.

[0049] The preferred sealing structure in steam boiler 2 is as follows: (Refer to...) Figures 3-5The upper end of the boiler base 22 is provided with a sealing groove 223, and a sealing element 224 is provided in the sealing groove 223; the lower end of the boiler cover 21 is provided with a ring of pressure ribs, and the pressure ribs abut against the sealing element 224 so that a sealing fit is formed between the boiler base 22 and the boiler cover 21 through the sealing element 224; the lower connecting part 221 is located outside the sealing groove 223. The features are as follows: First, the sealing groove 223 is located on the upper surface of the boiler base 22, surrounding the steam cavity to form a groove for accommodating the sealing element 224, ensuring that the sealing element 224 is installed accurately and is not easily displaced; Second, the pressure rib function: the annular pressure rib at the lower end of the boiler cover 21 is coaxially arranged with the sealing groove 223. During installation, the sealing element 224 is compressed between the pressure rib and the sealing groove 223 by pressing down the fastener 25 (bolt 251), forming an annular sealing surface; Third, the mechanical connection and sealing are separated. The lower connection part 221 (bolt 251 mounting position) is located outside the sealing groove 223, so that the fastening force of the bolt 251 acts on the structural components of the base and the cover, avoiding direct compression of the sealing element 224 and causing deformation.

[0050] Furthermore, referring to Figure 5 The lower connecting portion 221 has several balancing grooves 225, and the through hole 24 is located between the balancing grooves 225 and the sealing groove 223. The balancing grooves 225 serve two purposes: First, they provide a stress release and balancing mechanism. The balancing grooves 225 are grooves (such as annular grooves or radial grooves) on the lower connecting portion 221. When the fastener 25 (bolt 251) is tightened through the through hole 24, the balancing grooves 225 absorb local deformation stress in the connecting portion, preventing stress concentration in the sealing groove 223 area. In traditional rigid connections, the preload of the bolt 251 may cause bending deformation of the lower connecting portion 221, thereby compressing the seal 224 within the sealing groove 223. The balancing grooves 225 disperse this stress through elastic deformation, resulting in a more uniform pressure distribution on the sealing surface. Second, the placement of the through hole 24 forms a stress transmission path from the balancing groove 225 to the through hole 24 and then to the sealing groove 223. The preload of bolt 251 is first buffered by the balance groove 225 before being transmitted to the sealing groove 223, preventing uneven compression caused by bolt 251 directly pressing the seal 224. Simultaneously, it meets the leak-proof design requirements. If the through hole 24 is close to the sealing groove 223, the bolt 251 hole may become a steam leakage channel (such as steam seepage through the thread gap). The presence of the balance groove 225 can form a labyrinthine barrier in the leakage path, extending the steam escape path.

[0051] Optionally, refer to Figures 6-7Multiple wedge-shaped support ribs 28 are protruding from the outer walls of both the boiler casing 21 and the boiler base 22. These wedge-shaped support ribs 28 are connected to the upper connecting part 211 and the lower connecting part 221, respectively, and are integrally formed with the boiler casing 21 and boiler base 22. Through geometric optimization and integral forming technology, the wedge-shaped support ribs 28 significantly improve the mechanical properties of the boiler connection structure without increasing assembly complexity.

[0052] Preferably, refer to Figure 2 The upper end of the boiler casing 21 extends upward to form a chimney section 212. The water inlet port 11 is located on the chimney section 212, and an on / off valve cover 4 is provided at the water inlet port 11. Firstly, placing the water inlet port 11 on the chimney section 212 avoids opening holes on the side of the boiler body, reducing the risk of steam leakage. Simultaneously, the elevated position of the chimney section 212 keeps the water inlet operation away from the high-temperature area of ​​the base. Secondly, the temperature at the top of the chimney section 212 is typically 20-30°C lower than the boiler body (due to heat dissipation from rising hot steam), and placing the water inlet port 11 here reduces the risk of operators being exposed to high temperatures.

[0053] Reference Figures 2-3 Furthermore, a pressure relief valve 41 is provided in the opening and closing valve cover 4. The design of integrating the pressure relief valve 41 within the opening and closing valve cover 4 combines a traditionally independently installed safety device with the water filling operation component, forming a functionally integrated safety protection system. The function and usage of the pressure relief valve 41 are consistent with existing technologies and will not be elaborated further here.

[0054] The design employs an alternating arrangement of recessed sections 291 and protruding sections 292, combined with the installation structure of fasteners 25 and shock-absorbing sleeves 3. This approach enhances equipment reliability through a dual mechanism of structural mechanics optimization and flexible vibration reduction. The specific structure is as follows: (Refer to...) Figures 6-7The side walls of the boiler cover 21 and the boiler base 22 are both composed of recessed sections 291 and protruding sections 292, and the recessed sections 291 and protruding sections 292 are arranged at intervals. The fastener 25 includes a bolt 251 and a nut 252. The bolt 251 passes through the through hole 24 from top to bottom and enters the shock-absorbing rubber sleeve 3. The nut 252 is threaded onto the bolt 251 and abuts between the lower end of the lower connecting part 221 and the upper end of the shock-absorbing rubber sleeve 3. The advantages of the above structure are as follows: First, the concave and convex sections 292 create a "wrinkled" effect in the sidewall cross-section, which can increase the bending stiffness by 30%-50% compared to flat wall panels; second, the alternating arrangement of concave and convex sections disperses concentrated loads to multiple sections, reducing the risk of crack initiation when the boiler is subjected to lateral forces; third, vibration energy dissipation is achieved, as the nonlinear structure of the concave and convex sections can absorb vibration energy of 100-200Hz, reducing the amplitude from 0.5mm to below 0.2mm through structural damping, and reducing the impact of fasteners 25. The frequency of vibration and loosening; thirdly, the synergistic vibration reduction mechanism of bolt 251, rubber sleeve, and nut 252. The lower end of bolt 251 is inserted into the damping rubber sleeve 3, and nut 252 abuts between the lower connecting part 221 and the upper end of the rubber sleeve, forming a composite support of rigid bolt 251 and flexible rubber sleeve. The damping rubber sleeve 3 can absorb the axial vibration during equipment operation, and the elasticity of the damping rubber sleeve 3 compensates for the attenuation of the preload of bolt 251 (such as the elongation of bolt 251 caused by thermal expansion), so that the preload fluctuation range is reduced, ensuring the long-term stability of the connection.

[0055] It is worth noting that the other technical solutions of this utility model are all existing technologies, and therefore will not be described in detail.

[0056] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A steam cleaning unit with a highly stable boiler device, comprising: The steam housing (1) has a water inlet port (11) and a steam outlet port (12); A steam boiler (2) is installed inside a steam shell (1), and the steam boiler (2) is connected to the water inlet port (11) and the steam outlet port (12) respectively. Its features are: The steam boiler (2) consists of a boiler casing (21) and a boiler base (22) and forms a steam generating chamber (23); The boiler cover (21) has several upper connecting parts (211) protruding on its outer wall, and the boiler base (22) has several lower connecting parts (221) protruding on its outer wall. The upper connecting parts (211) and the lower connecting parts (221) correspond one to one and have through holes (24). Fasteners (25) are inserted into each through hole (24) to fix the boiler cover (21) and the boiler base (22) into one piece. The inner bottom surface of the steam shell (1) is provided with a plurality of lifting columns (13) protruding upwards. The lifting columns (13) are provided with positioning core rods (131). The positioning core rods (131) are fitted with shock-absorbing rubber sleeves (3). The lower end of the fastener (25) is inserted into the shock-absorbing rubber sleeves (3) from top to bottom.

2. The steam cleaning host with a high-stability boiler device according to claim 1, characterized in that: An accommodating space (14) is formed between the inner bottom surface of the steam shell (1) and the lower end surface of the steam boiler (2); A temperature controller (5) is provided on the bottom surface of the steam boiler (2), and the temperature controller (5) is located in the accommodating space (14); The steam boiler (2) has a heating tube (27), the wiring end of which protrudes from the lower end of the steam boiler (2) and the wiring end of which is located in the accommodating space (14).

3. The steam cleaning host with a high-stability boiler device according to claim 2, characterized in that: The lower end face of the steam boiler (2) also has an integrally formed wire clamp (26), and the wiring end of the heating tube (27) is connected to a cable, and at least part of the cable can be inserted into the wire clamp (26).

4. The steam cleaning host with a high-stability boiler device according to claim 2, characterized in that: The bottom surface of the boiler base (22) is recessed with several detection grooves (222), the detection end of the thermostat (5) extends into the detection grooves (222), and the detection grooves (222) are located above the heating tube (27).

5. The steam cleaning host with a high-stability boiler device according to claim 1, characterized in that: A sealing groove (223) is provided at the upper end of the boiler base (22), and a sealing element (224) is provided in the sealing groove (223); The lower end of the boiler cover (21) is provided with a ring of pressure ribs, which press against the sealing element (224) so ​​that a sealing fit is formed between the boiler base (22) and the boiler cover (21) through the sealing element (224). The lower connecting part (221) is located outside the sealing groove (223).

6. The steam cleaning host with a high-stability boiler device according to claim 5, characterized in that: The lower connecting part (221) is provided with a plurality of balancing grooves (225), and the through hole (24) is located between the balancing grooves (225) and the sealing groove (223).

7. The steam cleaning host with a high-stability boiler device according to claim 1, characterized in that: Multiple wedge-shaped support ribs (28) are protruding on the outer walls of the boiler cover (21) and the boiler base (22). The wedge-shaped support ribs (28) are connected to the upper connecting part (211) and the lower connecting part (221) respectively, and the wedge-shaped support ribs (28) and the boiler cover (21) / boiler base (22) are integrally formed parts.

8. The steam cleaning host with a high-stability boiler device according to claim 1, characterized in that: The upper end of the boiler casing (21) extends upward to form a chimney section (212), the water inlet port (11) is set on the chimney section (212), and an opening and closing valve cover (4) is provided at the water inlet port (11).

9. The steam cleaning host with a high-stability boiler device according to claim 8, characterized in that: The opening and closing valve cover (4) is equipped with a pressure relief valve (41).

10. The steam cleaning host with a high-stability boiler device according to any one of claims 1-9, characterized in that: The sidewalls of the boiler casing (21) and the boiler base (22) are both composed of recessed sections (291) and protruding sections (292), and the recessed sections (291) and protruding sections (292) are arranged at intervals. The fastener (25) includes a bolt (251) and a nut (252). The bolt (251) passes through the through hole (24) from top to bottom and enters the shock-absorbing rubber sleeve (3). The nut (252) is threaded onto the bolt (251) and abuts between the lower end of the lower connecting part (221) and the upper end of the shock-absorbing rubber sleeve (3).

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