Hidden outlet kitchen faucet with semi-automatic lifting device

Abstract

The present invention provides a concealed outlet water pipe kitchen faucet provided with a semi-automatic lifting device, which comprises: a mixed water control switch; a cold water inlet pipe; a hot water inlet pipe; a mixed water connecting pipe; a water outlet mechanism; a semi-automatic lifting device, which comprises a sleeve assembly, a spring, a positioning screw, and an inner connecting pipe assembly. The water outlet mechanism is provided with a positioning notch in the axial direction. When the positioning screw disengages from the positioning notch, under the restoring force of the spring, the spring jacks up the water outlet mechanism in the longitudinal direction. When the water outlet mechanism is pressed downward in the longitudinal direction, the positioning screw is inserted into the positioning notch, so that the positioning screw engages with the spring, and at this time the spring is gradually compressed so that the water outlet mechanism is hidden in the cavity of the sleeve assembly. Compared with the prior art, by providing a semi-automatic lifting device, especially the interconnection among the spring, the positioning screw, and the positioning notch, the structure can be simplified and the production cost can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device. Background Art

[0002] Currently, in the prior art, there is an outlet pipe kitchen faucet, which includes: a mixed water control switch; a cold water inlet pipe; a hot water inlet pipe; a mixed water connecting pipe; and a water outlet mechanism, which includes an outlet pipe, and the water outlet mechanism is communicated with the mixed water control switch through the mixed water connecting pipe. The problem with it is that for the outlet pipe kitchen faucet with the foregoing structure, in order to enable the faucet to be lifted, a motor driving structure is adopted. Although this structure has relatively strong automation, the implemented structure is too complex and the production cost is relatively high.

[0003] Therefore, the present invention provides a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device, which has the advantages of simplifying the structure and reducing the production cost.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device, which includes:

[0007] A mixed water control switch;

[0008] A cold water inlet pipe;

[0009] A hot water inlet pipe;

[0010] A mixed water connecting pipe;

[0011] A water outlet mechanism, which includes an outlet pipe, and the water outlet mechanism is communicated with the mixed water control switch through the mixed water connecting pipe;

[0012] It further includes the following components,

[0013] A semi-automatic lifting device, which includes a sleeve assembly, a spring, a positioning screw, and an inner connecting pipe assembly. The water outlet mechanism is provided with a positioning notch in the axial direction. The water outlet mechanism slides longitudinally and extends into the cavity of the sleeve assembly. The inner connecting pipe assembly partially extends longitudinally into the cavity of the sleeve assembly and is communicated with the water outlet mechanism. The spring is wound in the cavity of the water outlet mechanism. The top of the spring abuts and cooperates with the water outlet mechanism. The bottom of the spring abuts and cooperates with the inner connecting pipe assembly. The positioning screw slides axially and is embedded in the water outlet mechanism. After the positioning screw engages with the spring, it is inserted and cooperated with the positioning notch;

[0014] When the positioning screw disengages from the positioning notch, under the restoring force of the spring, the spring pushes the water outlet mechanism upward in the longitudinal direction; when the water outlet mechanism is pressed downward in the longitudinal direction, the positioning screw is inserted into the positioning notch, engaging the spring, and at this time the spring is gradually compressed so that the water outlet mechanism is hidden in the cavity of the sleeve assembly.

[0015] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: it further includes an air intake assembly for controlling the upward speed of the water outlet mechanism in the longitudinal direction, and the air intake assembly includes an air intake screw and an air intake cavity;

[0016] The air intake cavity is arranged axially in the inner connecting pipe assembly and is opposite to the water outlet mechanism, and the air intake screw is embedded in the air intake cavity and cooperates with the water outlet mechanism.

[0017] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: it further includes a check valve, the inner connecting pipe assembly is provided with a check valve cavity in the axial direction, the check valve cavity is arranged opposite to the water outlet mechanism, and the check valve is embedded in the check valve cavity and cooperates with the water outlet mechanism.

[0018] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: the water outlet mechanism further includes a straight pipe, a first connection assembly, an inner conduit, and a second connection assembly. The inner conduit is longitudinally disposed in the cavity of the straight pipe. The top of the inner conduit is connected to the outlet pipe through the first connection assembly. The second connection assembly is arranged at the bottom of the inner conduit, and the inner conduit is connected to the inner connecting pipe assembly through the second connection assembly.

[0019] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: the first connection assembly includes a water outlet joint and an M5 screw. The water outlet joint includes a longitudinal connecting cylinder portion and an annular cylinder portion arranged at the top of the longitudinal connecting cylinder portion. The longitudinal connecting cylinder portion extends into the cavity of the inner conduit, and the M5 screw is axially inserted through the inner conduit and abuts against the longitudinal connecting cylinder portion for cooperation;

[0020] The bottom plane of the annular cylinder portion closely adheres to the top of the inner conduit, and the outer side wall of the annular cylinder portion is fitted into the inner cavity wall of the straight pipe.

[0021] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: the second connection assembly includes a sealing joint, a sealing rubber ring, a Y-shaped oil seal ring, an inner pipe sealing ring, and a lock nut. The barrel portion of the sealing joint extends into the cavity at the bottom of the inner conduit, and the sealing rubber ring is sleeved on the outer side wall of the barrel portion of the sealing joint;

[0022] The Y-shaped oil seal ring, the inner pipe seal ring, and the lock nut are sequentially embedded from top to bottom on the inner side wall of the seal joint located in the outer cavity part of the inner conduit.

[0023] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: the sleeve assembly includes a sleeve, at least two locking screws, a locking nut, a flat gasket, and a flange. The locking nut and the flat gasket are both sleeved on the outer side wall of the sleeve. The two locking screws are screwed into the locking nut at intervals in the longitudinal direction. The flange is sleeved on the outer side wall of the locking nut located above the sleeve.

[0024] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: it further includes a plastic ring and an O-ring. Part of the plastic ring is sleeved on the top of the inner cavity of the sleeve, and the O-ring is embedded in the groove of the flange.

[0025] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: the inner connecting pipe assembly includes a plastic pipe, a support, an angle positioning welding part, and a connecting quick plug. The top ring surface of the support abuts and cooperates with the spring. The top of the plastic pipe communicates with the water outlet mechanism in the longitudinal direction. The bottom of the plastic pipe passes through the support and is inserted into the connecting quick plug. The top of the angle positioning welding part is embedded in the cavity of the support;

[0026] The connecting quick plug is partially embedded in the cavity of the angle positioning welding part from bottom to top.

[0027] The concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device is characterized in that: the plastic pipe is an integral part made of PA12 material.

[0028] As described above, a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device according to the present invention has the following beneficial effects:

[0029] After the present invention utilizes the above-mentioned concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device, compared with the prior art, due to adopting such a structure, by setting the semi-automatic lifting device, especially the linkage among the spring, the positioning screw and the positioning notch, when the positioning screw disengages from the positioning notch, under the restoring force of the spring, the spring pushes the water outlet mechanism upward in the longitudinal direction; when pressing the water outlet mechanism downward in the longitudinal direction, the positioning screw is inserted into the positioning notch, enabling the positioning screw to engage with the spring, and at this time the spring is gradually compressed so that the water outlet mechanism is hidden in the cavity of the sleeve assembly; thus, the semi-automatic lifting function of the outlet pipe can be realized, and it is gradually hidden in the sleeve assembly when pressed. Compared with the structure driven by a motor in the prior art, it can simplify the structure and greatly reduce the production cost.

[0030] The following further illustrates the present invention in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a perspective view of the outlet pipe after rising in a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device;

[0032] Figure 2 It is a schematic structural view of the outlet pipe in a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device in a rotating state;

[0033] Figure 3 It is a schematic view of the use state when the outlet pipe is about to rise during the rotation of the outlet pipe by 30° in a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device;

[0034] Figure 4 It is a schematic view of the use state when the outlet pipe is about to descend during the rotation of the outlet pipe from 30° to 120° in a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device;

[0035] Figure 5 It is a partial structural cross-sectional view of the outlet pipe after rising in a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device;

[0036] Figure 6 For Figure 5 Partial enlarged view of the structure in;

[0037] Figure 7 For Figure 5 Enlarged view of the structure of the water outlet assembly in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0039] It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that the present invention can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope for the implementation of the present invention. The specific structure can be described with reference to the attached drawings of the patent application.

[0040] In the following embodiments, the left side of the paper surface is defined as the left direction, the right side of the paper surface is defined as the right direction, the upper side of the paper surface is defined as the upper direction, the lower side of the paper surface is defined as the lower direction, the front side perpendicular to the paper surface is defined as the front direction, and the rear side perpendicular to the paper surface is defined as the rear direction.

[0041] The present invention provides a concealed outlet pipe kitchen faucet provided with a semi-automatic lifting device. Please refer to Figures 1 to 7 as shown, wherein Figure 2 the black arrow in represents the rotation direction of the outlet pipe, and it includes:

[0042] Mixed water control switch 1;

[0043] Cold water inlet pipe 2;

[0044] Hot water inlet pipe 3;

[0045] Mixed water connecting pipe 4;

[0046] Outlet mechanism 5, which includes an outlet pipe 50. The outlet mechanism 5 is communicated with the mixed water control switch 1 through the mixed water connecting pipe 4;

[0047] It further includes the following components,

[0048] Semi-automatic lifting device 6, which includes a sleeve assembly 60, a spring 61, a positioning screw 62, and an inner connecting pipe assembly 63. The outlet mechanism 5 is provided with an axial positioning notch 5a. The outlet mechanism 5 slides into the cavity of the sleeve assembly 60 along the longitudinal direction at the top. The inner connecting pipe assembly 63 partially extends into the cavity of the sleeve assembly 60 along the longitudinal direction at the bottom and is communicated with the outlet mechanism 5. The spring 61 is wound in the cavity of the outlet mechanism 5. The top of the spring 61 is in abutting cooperation with the outlet mechanism 5, and the bottom of the spring 61 is in abutting cooperation with the inner connecting pipe assembly 63. The positioning screw 62 slides axially and is embedded in the outlet mechanism 5. After the positioning screw 62 is engaged with the spring 62, it is inserted and cooperated with the positioning notch 5a;

[0049] When the positioning screw disengages from the positioning notch 5a, under the restoring force of the spring 61, the spring 61 pushes the water outlet mechanism 5 upward in the longitudinal direction; when the water outlet mechanism 5 is pressed downward in the longitudinal direction, the positioning screw 62 is inserted into the positioning notch 5a, causing the positioning screw 62 to engage with the spring 61. At this time, the spring 61 is gradually compressed so that the water outlet mechanism 5 is hidden in the cavity of the sleeve assembly 60.

[0050] It should be noted that by providing the semi-automatic lifting device 6, especially the interlocking among the spring 61, the positioning screw 62, and the positioning notch 5a, when the positioning screw disengages from the positioning notch 5a, under the restoring force of the spring 61, the spring 61 pushes the water outlet mechanism 5 upward in the longitudinal direction; when the water outlet mechanism 5 is pressed downward in the longitudinal direction, the positioning screw 62 is inserted into the positioning notch 5a, causing the positioning screw 62 to engage with the spring 61. At this time, the spring 61 is gradually compressed so that the water outlet mechanism 5 is hidden in the cavity of the sleeve assembly 60; in this way, the semi-automatic lifting function of the water outlet pipe can be realized, and it is gradually hidden in the sleeve assembly when pressed. Compared with the structure driven by a motor in the prior art, the structure can be simplified, and the production cost can be greatly reduced.

[0051] Combined with Figure 1 、 Figure 5 and Figure 6 As shown, in this embodiment, in order to control the speed of the water outlet pipe rising process, an air intake assembly 7 for controlling the speed of the water outlet mechanism 5 rising in the longitudinal direction is further included. The air intake assembly 7 includes an air intake screw 70 and an air intake cavity 71;

[0052] The air intake cavity 71 is arranged axially in the inner connecting pipe assembly 63 and is opposite to the water outlet mechanism 5. The air intake screw 70 is embedded in the air intake cavity 71 and cooperates with the water outlet mechanism 5. By setting the foregoing structure, especially using the air intake screw 70, during the rising process of the water outlet pipe 50, the air intake screw 70 can be used to cooperate with the water outlet mechanism 5, and the air intake screw 70 is used to adjust the air intake volume, that is, the air intake screw 70 is used to control the tightness of the water outlet mechanism 5 cooperating with it. In this way, the speed of the water outlet pipe 50 rising process is controlled, preventing the water outlet pipe 50 from rising rapidly, which is convenient to use.

[0053] Combined with Figure 5 or Figure 6As shown, in this embodiment, in order to reduce the force required for the water outlet mechanism 5 to move downward in the longitudinal direction and increase the moving speed, a check valve 8 is further included. The inner pipe assembly 63 is provided with a check cavity 63b in the axial direction. The check cavity 63b is disposed opposite to the water outlet mechanism 5. The check valve 8 is embedded in the check cavity 63b and cooperates with the water outlet mechanism 5. Due to the reserved air in the cavity pressed by the water outlet pipe, when the water outlet pipe is pressed downward in the longitudinal direction, the check valve 8 will be opened to discharge the reserved air. On the contrary, when the water outlet pipe rises, the check valve 8 is in a closed state. During the operation of pressing the water outlet mechanism 5, the force required for the water outlet mechanism 5 to move downward in the longitudinal direction can be reduced and the moving speed can be increased.

[0054] Combined with Figure 5 、 Figure 6 and Figure 7 As shown, in this embodiment, the water outlet mechanism 5 further includes a straight pipe 51, a first connection assembly 52, an inner conduit 53, and a second connection assembly 54. The inner conduit 53 is longitudinally disposed in the cavity of the straight pipe 51. The top of the inner conduit 53 is connected to the water outlet pipe 50 through the first connection assembly 52. The second connection assembly 54 is disposed at the bottom of the inner conduit 53, and the inner conduit 53 is connected to the inner pipe assembly 63 through the second connection assembly 54.

[0055] Combined with Figure 5 、 Figure 6 and Figure 7 As shown, in this embodiment, the first connection assembly 52 includes a water outlet joint 520 and an M5 screw 521. The water outlet joint 520 includes a longitudinal joint portion 5200 and an annular joint portion 5201 provided at the top of the longitudinal joint portion 5200. The longitudinal joint portion 5200 extends into the cavity of the inner conduit 53, and the M5 screw 521 is axially inserted through the inner conduit 53 and abuts against the longitudinal joint portion 5200 for cooperation;

[0056] The bottom plane of the annular joint portion 5201 is closely attached to the top of the inner conduit 53, and the outer side wall of the annular joint portion 5201 is fitted into the inner cavity wall of the straight pipe 51.

[0057] Combined with Figure 5 、 Figure 6 and Figure 7 As shown, in this embodiment, the second connection assembly 54 includes a sealing joint 540, a sealing rubber ring 541, a Y-shaped oil seal ring 542, an inner pipe sealing ring 543, and a lock nut 544. The barrel portion of the sealing joint 540 extends into the bottom cavity of the inner conduit 53, and the sealing rubber ring 541 is sleeved on the outer side wall of the barrel portion of the sealing joint 540;

[0058] The Y-shaped oil seal ring 542, the inner pipe seal ring 543, and the lock nut 544 are sequentially embedded from top to bottom on the inner side wall of the seal joint 540 located in the outer cavity of the inner conduit 53.

[0059] Combined Figure 5 As shown, in this embodiment, the sleeve assembly 60 includes a sleeve 600, at least two locking screws 601, a locking nut 602, a flat gasket 603, and a flange 604. The locking nut 602 and the flat gasket 603 are both sleeved on the outer side wall of the sleeve 600. The two locking screws 601 are screwed into the locking nut 602 at intervals in the longitudinal direction. The flange 604 is sleeved on the outer side wall of the locking nut 602 located above the sleeve 600.

[0060] Combined Figure 5 As shown, in this embodiment, it further includes a plastic ring 605 and an O-ring 606. Part of the plastic ring 605 is sleeved on the top of the inner cavity of the sleeve 600, and the O-ring 606 is embedded in the groove of the flange 604.

[0061] Combined Figure 5 and Figure 6 As shown, in this embodiment, the inner connecting pipe assembly 63 includes a plastic pipe 630, a support member 631, an angle positioning welding member 632, and a connecting quick plug 633. The top ring surface of the support member 631 is in abutting cooperation with the spring 61. The top of the plastic pipe 630 is longitudinally communicated with the water outlet mechanism 5. The bottom of the plastic pipe 630 passes through the support member 631 and is inserted into the connecting quick plug 633. The top of the angle positioning welding member 632 is embedded in the cavity of the support member 631;

[0062] The connecting quick plug 633 is partially embedded in the cavity of the angle positioning welding member 632 from bottom to top.

[0063] Combined Figure 5 or Figure 6 As shown, in this embodiment, the plastic pipe 630 is an integral part made of PA12 material.

[0064] When using the concealed water outlet kitchen faucet with a semi-automatic lifting device of the present invention, combined Figures 1 to 6 shown, wherein Figure 1It is a usage state diagram after the water outlet pipe of the water outlet mechanism is lifted; when the user needs to use the faucet of the present application, it is necessary to rotate it by an appropriate angle (generally set between 30° and 120°). At this time, the positioning screw 62 will disengage from the positioning notch 5a, and the spring 61 in the compressed state will be released. This spring 61 will push the water outlet pipe 50 upward in the longitudinal direction; when the user does not need to use the faucet of the present application, it is necessary to press the water outlet pipe of the water outlet mechanism 5 by hand, so that the water outlet pipe 50 is gradually pressed to the bottom until it cannot be pressed any further. The positioning screw 62 will disengage from the positioning notch 5a, and the spring 61 in the compressed state will be released. At the same time, the positioning screw 62 will enter the positioning notch 5a, so that the positioning screw 62 is engaged with the compressed spring 61, thereby gradually hiding the water outlet pipe 50 of the water outlet mechanism 5 in the sleeve assembly 63, realizing the semi-automatic lifting function and being convenient to use.

[0065] As described above, a concealed water outlet pipe kitchen faucet provided with a semi-automatic lifting device according to the present invention has the following beneficial effects:

[0066] After the present invention utilizes the concealed water outlet pipe kitchen faucet provided with the semi-automatic lifting device, compared with the prior art, due to adopting such a structure, by setting the semi-automatic lifting device, especially the linkage between the spring, the positioning screw and the positioning notch, when the positioning screw disengages from the positioning notch, under the restoring force of the spring, the spring pushes the water outlet mechanism upward in the longitudinal direction; when the water outlet mechanism is pressed downward in the longitudinal direction, the positioning screw is inserted into the positioning notch, so that the positioning screw engages with the spring, and at this time the spring is gradually compressed to hide the water outlet mechanism in the cavity of the sleeve assembly; thus, the semi-automatic lifting function of the water outlet pipe can be realized, and it is gradually hidden in the sleeve assembly when pressed. Compared with the structure driven by a motor in the prior art, the structure can be simplified and the production cost can be greatly reduced.

[0067] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0068] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A concealed outlet pipe kitchen faucet with a semi-automatic lifting device, which comprises: A mixed water control switch; A cold water inlet pipe; A hot water inlet pipe; A mixed water connecting pipe; An outlet mechanism, which includes an outlet pipe, and the outlet mechanism is communicated with the mixed water control switch through the mixed water connecting pipe; It is characterized in that it further includes the following components, A semi-automatic lifting device, which includes a sleeve assembly, a spring, a positioning screw, and an inner connecting pipe assembly. The outlet mechanism is provided with a positioning notch in the axial direction. The outlet mechanism slides into the cavity of the sleeve assembly along the longitudinal direction at the top. The inner connecting pipe assembly partially extends into the cavity of the sleeve assembly along the longitudinal direction at the bottom and is communicated with the outlet mechanism. The spring is wound in the cavity of the outlet mechanism. The top of the spring abuts against the outlet mechanism, and the bottom of the spring abuts against the inner connecting pipe assembly. The positioning screw slides axially and is embedded in the outlet mechanism. After the positioning screw engages with the spring, it is inserted into the positioning notch for mating; When the positioning screw disengages from the positioning notch, under the restoring force of the spring, the spring pushes the outlet mechanism upward along the longitudinal direction; when the outlet mechanism is pressed downward along the longitudinal direction, the positioning screw is inserted into the positioning notch to engage the positioning screw with the spring. At this time, the spring is gradually compressed so that the outlet mechanism is hidden in the cavity of the sleeve assembly; It further includes an air intake assembly for controlling the rising speed of the outlet mechanism along the longitudinal direction. The air intake assembly includes an air intake screw and an air intake cavity; The air intake cavity is arranged axially on the inner connecting pipe assembly and is opposite to the outlet mechanism. The air intake screw is embedded in the air intake cavity and cooperates with the outlet mechanism; The outlet mechanism further includes a straight pipe, a first connecting component, an inner conduit, and a second connecting component. The inner conduit is longitudinally disposed in the cavity of the straight pipe. The top of the inner conduit is connected to the outlet pipe through the first connecting component. The second connecting component is arranged at the bottom of the inner conduit, and the inner conduit is connected to the inner connecting pipe assembly through the second connecting component; The first connecting component includes an outlet joint and an M5 screw. The outlet joint includes a longitudinal connecting cylinder portion and an annular cylinder portion arranged at the top of the longitudinal connecting cylinder portion. The longitudinal connecting cylinder portion extends into the cavity of the inner conduit, and the M5 screw axially penetrates through the inner conduit and abuts against the longitudinal connecting cylinder portion for mating; The bottom plane of the annular cylinder portion closely adheres to the top of the inner conduit, and the outer wall of the annular cylinder portion is fitted into the inner wall of the cavity of the straight pipe.

2. The concealed outlet pipe kitchen faucet with a semi-automatic lifting device according to claim 1, characterized in that: It further includes a check valve. The inner connecting pipe assembly is provided with a check valve cavity in the axial direction. The check valve cavity is arranged opposite to the outlet mechanism. The check valve is embedded in the check valve cavity and cooperates with the outlet mechanism.

3. The concealed outlet pipe kitchen faucet with a semi-automatic lifting device according to claim 2, characterized in that: The second connection component includes a sealing joint, a sealing rubber ring, a Y-shaped oil seal ring, an inner pipe sealing ring, and a lock nut. The cylindrical part of the sealing joint extends into the cavity at the bottom of the inner conduit, and the sealing rubber ring is sleeved on the outer side wall of the cylindrical part of the sealing joint. The Y-shaped oil seal ring, the inner pipe sealing ring, and the lock nut are sequentially embedded from top to bottom on the inner side wall of the sealing joint located in the outer cavity part of the inner conduit.

4. The concealed outlet pipe kitchen faucet with a semi-automatic lifting device according to any one of claims 1-3, characterized in that: The sleeve assembly includes a sleeve, at least two locking screws, a locking nut, a flat gasket, and a flange. The locking nut and the flat gasket are both sleeved on the outer side wall of the sleeve. The two locking screws are screwed into the locking nut at intervals in the longitudinal direction, and the flange is sleeved on the outer side wall of the locking nut located above the sleeve.

5. The concealed outlet pipe kitchen faucet with a semi-automatic lifting device according to claim 4, characterized in that: It further includes a plastic ring and an O-ring. Part of the plastic ring is sleeved on the top of the inner cavity of the sleeve, and the O-ring is embedded in the groove of the flange.

6. The concealed outlet pipe kitchen faucet with a semi-automatic lifting device according to any one of claims 1-3, characterized in that: The inner connecting pipe assembly includes a plastic pipe, a support, an angle positioning welding part, and a connecting quick plug. The top ring surface of the support is in abutting cooperation with the spring. The top of the plastic pipe is longitudinally communicated with the water outlet mechanism. The bottom of the plastic pipe passes through the support and is inserted into the connecting quick plug. The top of the angle positioning welding part is embedded in the cavity of the support; The connecting quick plug is partially embedded in the cavity of the angle positioning welding part from bottom to top.

7. The concealed outlet pipe kitchen faucet with a semi-automatic lifting device according to claim 6, characterized in that: The plastic pipe is an integral part made of PA12 material.

Images