Improved stainless steel faucet
By using a stainless steel tube to encase the outside of the stainless steel bar, the problem of not being able to install a detergent pump head on a stainless steel faucet was solved. This enabled low-cost production and fixed inner core, utilized existing bar inventory, and avoided interference and customization costs.
Patent Information
- Application Number
- CN202520496433.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing stainless steel faucets cannot accommodate detergent pump heads without structural modifications, necessitating the customization of larger diameter rods, increasing costs and creating inventory buildup of existing rods.
The inner core is made of stainless steel rods and the outer side is fitted with a stainless steel tube to form a composite body. Large-diameter faucets are produced using existing small-diameter rods. The inner core is covered by a top cap to prevent interference between the pump head and the water outlet pipe.
This technology enables low-cost production of stainless steel faucets, utilizes existing bar stock, avoids the need for new large-diameter bars, and ensures that the inner core and tube are fixed to prevent shaking and interference.
Smart Images

Figure CN223854940U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of bathroom, specifically relates to an improved stainless steel faucet. BACKGROUND
[0002] The faucet with cleaning agent is gradually welcomed by consumers because of the convenience of pumping out cleaning agent and the ability to place the cleaning agent bottle below the kitchen countertop. Due to the need for space for the pump head, the traditional method is to greatly change the structure of the faucet body to make room for the cleaning agent pump head, such as the water faucet with detergent structure disclosed in Chinese patent CN220228047U, published on December 22, 2023. This approach is only suitable for cast copper faucets or zinc alloy faucets. For stainless steel faucets, since they are produced from bar or pipe materials, they cannot be arbitrarily shaped like cast faucets.
[0003] Moreover, the stainless steel bar used for producing traditional stainless steel pump head faucets in the current faucet production base is limited in diameter, resulting in the pump head and faucet outlet pipe exceeding the edge of the bar. Using a larger diameter bar requires reordering and custom production, resulting in a significant increase in cost and accumulation of existing stainless steel bar inventory.
[0004] In view of the above-mentioned defects in the prior art, the present inventors have conducted in-depth research and thus have developed the present case. CONTENT OF THE UTILITY MODEL
[0005] The main purpose of the utility model is to provide an improved stainless steel faucet, which has the characteristics of low-cost production of stainless steel faucets with pump heads and can be produced using existing stainless steel bars.
[0006] To achieve the above-mentioned purpose, the solution of the utility model is as follows:
[0007] An improved stainless steel faucet, comprising an outer shell pipe and an inner core body machined from a stainless steel bar, the outer shell pipe comprising a stainless steel pipe body and a top cover welded to the top end of the stainless steel pipe body; the outer shell pipe is sleeved on the outer side of the inner core body, the inner core body has a mounting channel for mounting the pump head and a water outlet for connecting the outlet pipe, the mounting channel is arranged vertically; the top cover has a first through hole and a second through hole corresponding to the mounting channel and the water outlet, respectively.
[0008] Further, the first through hole and the second through hole are both circular holes, and the line connecting the centers of the first through hole and the second through hole passes through the center of the top cover.
[0009] Further, the outer side wall surface of the inner core body is attached to the inner side surface of the stainless steel pipe body.
[0010] Further, the top end surface of the inner core body is attached to the lower surface of the top cover.
[0011] Further, the diameter of the inner core body is 45mm, and the outer diameter of the stainless steel pipe body is 48mm.
[0012] Further, the axis of the first through hole is closer to the edge of the top cover than the axis of the mounting channel.
[0013] Further, the lower end of the inner core body is internally recessed to form an internal thread, and the lower end of the inner core body is flush with the lower end of the shell pipe.
[0014] Further, the shell pipe completely covers the top surface and the side surface of the inner core body.
[0015] Further, the side portion of the inner core body has a valve core mounting cavity, the water outlet is connected to the valve core mounting cavity, the stainless steel pipe body of the shell pipe is formed with a mounting through hole corresponding to the valve core mounting cavity; a side pipe body is arranged in the valve core mounting cavity and the mounting through hole, and the side pipe body is welded to the stainless steel pipe body.
[0016] Further, the inner core body has a cold water inlet channel and a hot water inlet channel, and the cold water inlet channel and the hot water inlet channel are connected to the valve core mounting cavity; a cold and hot water mixing valve core is arranged in the valve core mounting cavity.
[0017] Further, the side pipe body is full-welded at the joint with the stainless steel pipe body.
[0018] After adopting the above structure, the improved stainless steel faucet has at least the following beneficial effects:
[0019] I. By sleeving the stainless steel pipe body outside the inner core body made of the stainless steel bar, the outer diameter of the manufactured stainless steel faucet is equal to the outer diameter of the stainless steel pipe body. The top cover is arranged to shield the top portion of the inner core body, so that the combination of the inner core body and the shell pipe is equivalent to a larger diameter stainless steel bar.
[0020] Since the conventional specifications of the pipe material are more than those of the bar material, the small-diameter conventional stainless steel bar is used to replace the originally required large-diameter stainless steel bar to produce the stainless steel faucet, without the need for additional customization of the large-diameter stainless steel bar, and the existing stainless steel bar in the warehouse can be consumed.
[0021] II. The outer side wall of the inner core body is attached to the inner side wall of the stainless steel pipe body, so that the inner core body and the stainless steel pipe body are prevented from shaking. In particular, after the side pipe body is inserted into the valve core mounting cavity, the axial movement of the inner core body relative to the stainless steel pipe body is also limited, and the inner core body is completely fixed.
[0022] III. Because the diameter of the faucet is limited. The line connecting the centers of the first and second through holes passes through the center of the top cover, so as to fully utilize the space of the top cover while avoiding interference between the pump body head and the water outlet pipe.
[0023] Compared with the prior art, the original stainless steel bar outside is sleeved with the shell pipe, so that a larger diameter faucet is obtained. In this way, the cost is reduced by avoiding the need to customize special specifications of stainless steel bars. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 The utility model relates to an improved stainless steel faucet three-dimensional structure schematic diagram.
[0025] Figure 2 Another angle of the improved stainless steel faucet three-dimensional structure schematic diagram.
[0026] Figure 3 The bottom view of the improved stainless steel faucet three-dimensional structure schematic diagram.
[0027] Figure 4 The improved stainless steel faucet cross-sectional three-dimensional structure schematic diagram.
[0028] Figure 5 The improved stainless steel faucet exploded view schematic diagram.
[0029] Figure 6 The shell pipe three-dimensional structure schematic diagram.
[0030] Figure 7 Another angle of the shell pipe three-dimensional structure schematic diagram.
[0031] Figure 8 The top view of the improved stainless steel faucet three-dimensional structure schematic diagram.
[0032] In the figure:
[0033] Shell pipe 1; stainless steel pipe body 11; mounting through hole 111; top cover 12; first through hole 121; second through hole 122;
[0034] Inner core body 2; mounting channel 21; water outlet 22; valve core mounting cavity 23; cold water water passing hole 231; hot water water passing hole 232; mixed water water passing hole 233; internal thread 24; cold water inlet channel 25; hot water inlet channel 26; side pipe body 3. DETAILED DESCRIPTION
[0035] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments.
[0036] AsFigures 1 to 8 As shown, it is an improved stainless steel faucet, including the shell pipe 1 and the inner core body 2 made of stainless steel bar machining, the shell pipe 1 includes stainless steel pipe body 11 and welded on the top of the top cover 12 of stainless steel pipe body 11, the shell pipe 1 is set on the outer side of the inner core body 2, the inner core body 2 has an installation channel 21 for installing the pump body head (not shown in the figure, by pressing the pump body head to realize the cleaning liquid, such as detergent, etc.) and the water outlet 22 for connecting the water outlet pipe, the installation channel 21 is arranged from top to bottom, the top cover 12 is formed with first through hole 121 and second through hole 122 corresponding to the installation channel 21 and water outlet 22 respectively.
[0037] In this way, the improved stainless steel faucet of the utility model, through the way of setting the stainless steel pipe body 11 outside the inner core body 2 made of stainless steel bar, the outer diameter of the stainless steel faucet made is the outer diameter of the stainless steel pipe body 11. And the top cover 12 is arranged to shield the top of the inner core body 2, so that the combination of the inner core body 2 and the shell pipe 1 is equivalent to a larger diameter stainless steel bar.
[0038] Because the conventional specification of the pipe is more than that of the bar, the existing small-diameter conventional stainless steel bar is used to replace the original large-diameter stainless steel bar for production, without the need for additional customization of large-diameter stainless steel bar, and the original stainless steel bar in the warehouse can also be digested.
[0039] Preferably, the first through hole 121 and the second through hole 122 are both circular holes, and the line connecting the centers of the first through hole 121 and the second through hole 122 passes through the center of the top cover 12. Because the diameter of the faucet is limited, the line connecting the centers of the first through hole 121 and the second through hole 122 passes through the center of the top cover 12, so that the space of the top cover 12 is fully utilized, and at the same time, the interference between the pump body head and the water outlet pipe is avoided.
[0040] Preferably, the outer side wall surface of the inner core body 2 is attached to the inner side surface of the stainless steel pipe body 11. Further, the top end surface of the inner core body 2 is attached to the lower surface of the top cover 12.
[0041] The outer side wall of the inner core body 2 is attached to the inner side wall of the stainless steel pipe body 11, so that the shaking between the inner core body 2 and the stainless steel pipe body 11 is avoided. In particular, after the side pipe body 3 is inserted into the valve core installation cavity 23, the movement of the inner core body 2 relative to the axial direction between the stainless steel pipe body 11 is also limited, and the inner core body 2 is completely fixed.
[0042] Preferably, the diameter of the inner core 2 is 45mm, and the outer diameter of the stainless steel pipe body 11 is 48mm. The stainless steel tap without the installation channel 21 for installing the pump body head is mostly produced by a 45mm-diameter bar, which has a large raw material inventory and is easy to buy on the market.
[0043] Preferably, as shown in the drawings, the axis of the first through hole is closer to the edge of the top cover than the axis of the installation channel. In this way, the distance between the top of the pump head body and the water outlet pipe is increased, further avoiding interference. Figure 8
[0044] Preferably, the inner core 2 has a valve core installation cavity 23, the water outlet 22 is connected to the valve core installation cavity 23, and the stainless steel pipe body 11 of the shell pipe 1 has an installation through hole 111 corresponding to the valve core installation cavity 23; the valve core installation cavity 23 and the installation through hole 111 are provided with a side pipe body 3, which is welded to the stainless steel pipe body 11. Furthermore, the inner core 2 has a cold water inlet channel 25 and a hot water inlet channel 26, which are connected to the valve core installation cavity 23; the valve core installation cavity 23 is provided with a cold-hot water mixing valve core (not shown in the drawings). The inner bottom surface of the valve core installation cavity is provided with a cold water passing hole 231, a hot water passing hole 232, and a mixed water passing hole 233, which are respectively connected to the cold water inlet channel 25, the hot water inlet channel 26, and the water outlet 22. After the cold water and the hot water are mixed by the cold-hot water mixing valve core, the mixed water is delivered to the water outlet 22 and finally discharged through the water outlet pipe.
[0045] Preferably, the lower end of the inner core 2 is inwardly recessed to form an internal thread 24, the lower end of the inner core 2 is flush with the lower end of the shell pipe 1, and the shell pipe 1 completely covers the top surface and the side surface of the inner core 2. After the tap is installed, only the shell pipe 1 and the side pipe body 3 can be seen from the outside, and especially after the gap between the side pipe body 3 and the stainless steel pipe body 11 is fully welded, the shell pipe 1 and the side pipe body 3 look like one body.
[0046] Compared with the prior art, the utility model sets the shell pipe 1 on the outside of the original stainless steel bar, which is equivalent to a larger-diameter tap. In this way, the cost of customizing special specifications of stainless steel bars is reduced.
[0047] The above embodiments and drawings do not limit the product form and style of the utility model, and any appropriate changes or modifications made by ordinary technical personnel in the technical field shall be considered as not departing from the patent scope of the utility model.
Claims
1. An improved stainless steel faucet characterized in that, The inner core body is sleeved outside the outer shell pipe, and has a mounting channel for mounting a pump body head and a water outlet for connecting a water outlet pipe, the mounting channel is arranged through from top to bottom, and the top cover has a first through hole and a second through hole corresponding to the mounting channel and the water outlet respectively.
2. The improved stainless steel faucet as claimed in claim 1, wherein, The first through hole and the second through hole are both circular holes, and the line connecting the centers of the first through hole and the second through hole passes through the center of the top cover.
3. The improved stainless steel faucet as claimed in claim 1 wherein, The outer side wall surface of the inner core body is attached to the inner side surface of the stainless steel pipe body.
4. The improved stainless steel faucet as claimed in claim 3 wherein, The top end surface of the inner core body is attached to the lower surface of the top cover.
5. The improved stainless steel faucet as claimed in claim 1 wherein, The diameter of the inner core body is 45 mm, the outer diameter of the stainless steel pipe body is 48 mm, and the axis of the first through hole is closer to the edge of the top cover than the axis of the mounting channel.
6. The improved stainless steel faucet as claimed in claim 1 wherein, The lower end of the inner core body is inwardly recessed to form an internal thread, and the lower end of the inner core body is flush with the lower end of the outer shell pipe.
7. The improved stainless steel faucet as claimed in claim 1 wherein, The outer shell pipe completely covers the top surface and the side surface of the inner core body.
8. An improved stainless steel faucet as claimed in any one of the claims 1 to 7, wherein, The side part of the inner core body has a valve core mounting cavity, the water outlet is communicated to the valve core mounting cavity, the stainless steel pipe body of the outer shell pipe has a mounting through hole corresponding to the valve core mounting cavity, a side pipe body is arranged in the valve core mounting cavity and the mounting through hole, and the side pipe body is welded to the stainless steel pipe body.
9. The improved stainless steel faucet as claimed in claim 8, wherein, The inner core body has a cold water inlet channel and a hot water inlet channel, the cold water inlet channel and the hot water inlet channel are connected to the valve core mounting cavity, and a cold-hot water mixing valve core is arranged in the valve core mounting cavity.
10. The improved stainless steel faucet as claimed in claim 8 wherein, The gap at the connection between the side pipe body and the stainless steel pipe body is full-welded.
Citation Information
Patent Citations
Faucet with detergent structure
CN220228047U