Pull-out device for pull-out faucet and pull-out faucet

Abstract

The utility model provides a pull-out device for a pull-out type faucet and the pull-out type faucet. The pull-out device is arranged in a faucet seat body of the pull-out type faucet. The pull-out device comprises a fixed pipe and a sliding pipe, the sliding pipe slides up and down in the fixed pipe, a water inlet space is formed between the sliding pipe and the fixed pipe, the upper end of the sliding pipe is connected with a pull-out pipe of the pull-out type faucet, and the lower end of the sliding pipe is communicated with the water outlet end of a valve element of the pull-out type faucet; the water inlet space is communicated with an external water source, and water pressure in the water inlet space can act on the sliding pipe to push the sliding pipe to slide downwards so as to drive the drawing pipe to move downwards. According to the technical scheme, the pull-out type faucet without the heavy hammer can be provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pull device and pull faucet for pull faucet. BACKGROUND

[0002] Pull kitchen faucet is a common kitchen equipment, and its structure mainly includes main body, water outlet pipe, pull pipe, extraction head, weight and connecting hose etc. The main body is usually installed on the kitchen countertop, and the built-in valve core is used to control water flow and water temperature. The water outlet pipe is connected with the pull pipe through the connecting hose, one end of the pull pipe is connected with the extraction head, and the other end is fixed on the hose through the weight. When using, the user can pull the extraction head out of the water outlet pipe to achieve multi-angle and multi-functional cleaning needs, such as washing sink or flushing larger objects.

[0003] The weight is a key component of the pull faucet, usually installed at the lower part of the pull pipe, and helps the extraction head to reset by its own weight. When the user releases the extraction head, the weight pulls the pull pipe and the extraction head back to the original position through gravity, thereby completing the reset operation. In actual use, the weight is easy to interfere with the hose under the table or other kitchen equipment (such as water pipe, garbage disposer, etc.). Since the hose needs to move freely between the pull pipe and the water source, when the weight collides with the hose or other obstacles, it will cause the pull pipe to move unsmoothly, thereby affecting the pulling experience of the extraction head and increasing the operation difficulty of the user. The weight is usually fixed on the pull pipe by buckle or bolt. However, due to the shaking of the water pipe during long-term use or the collision between the weight and the hose, the weight may be loose or displaced. In this case, the weight cannot correctly reset the extraction head, and the user needs to manually adjust the position of the weight and fix it, which not only increases the maintenance cost, but also may cause inconvenience and discomfort in use. Since the reset completely depends on the weight, when the installation environment is complex (such as narrow space under the table or messy hose arrangement), the reset effect may be greatly reduced. In addition, the displacement of the weight position may also cause incomplete reset, making it difficult for the extraction head to return to the original position and causing trouble to the user. SUMMARY

[0004] The utility model aims at overcoming the deficiencies in the prior art, and provides a pull faucet without weight.

[0005] In order to solve the above technical problems, the utility model provides a kind of pull device for pull faucet, the pull device is arranged in the faucet seat body of the pull faucet;

[0006] The pulling device comprises a fixed tube and a sliding tube, the sliding tube slides up and down in the fixed tube, a water inlet space is formed between the sliding tube and the fixed tube, the upper end of the sliding tube is connected with a pulling pipe of the pulling faucet, and the lower end of the sliding tube is communicated with a valve core water outlet end of the pulling faucet; the water inlet space is communicated with an external water source, and the water pressure in the water inlet space can act on the sliding tube to push the sliding tube to slide downward to drive the pulling pipe to move downward.

[0007] In a more preferable embodiment, the sliding tube is provided with a pressure bearing part, the pressure bearing part comprises a first pressure bearing surface connected with the water inlet space and a second pressure bearing surface connected with the valve core water outlet end.

[0008] In a more preferable embodiment, the pressure bearing part is located in the fixed tube, the upper side of the pressure bearing part forms the water inlet space, and the lower side of the pressure bearing part is communicated with the valve core water outlet end.

[0009] In a more preferable embodiment, a water outlet pipe is connected between the valve core water outlet end and the fixed tube.

[0010] In a more preferable embodiment, the pulling device further comprises a water inlet seat;

[0011] The water inlet seat is fixedly arranged on the faucet seat body, the fixed tube is fixedly arranged on the water inlet seat, a valve seat is arranged on the water inlet seat, and the water inlet seat comprises an internal flow channel connecting the fixed tube and the valve seat; the valve seat is communicated with the external water source to connect the internal flow channel.

[0012] In a more preferable embodiment, one side of the valve seat facing the fixed tube is provided with a matching recess;

[0013] The matching recess can be adapted to the outer side wall of the fixed tube, and the valve seat and the water inlet seat are connected through a plug-in structure to make the valve seat connected with the internal flow channel.

[0014] In a more preferable embodiment, the plug-in structure comprises a water inlet recess arranged on the valve seat and a water inlet protrusion arranged on the water inlet seat, and the water inlet protrusion can be plugged into the water inlet recess.

[0015] In a more preferable embodiment, the faucet seat body comprises a vertical chamber and a horizontal chamber, and the horizontal chamber is connected with the vertical chamber;

[0016] The valve seat is arranged in the horizontal chamber, the matching recess of the valve seat is arranged in the vertical chamber, and the water inlet seat is arranged from the upper end opening of the vertical chamber to be plugged into the valve seat, and the matching recess is adapted to position the fixed tube.

[0017] In a more preferred embodiment, the valve seat is connected to the external water source through a water inlet pipe, the valve seat comprises a first water distribution channel and a second water distribution channel, the first water distribution channel and the second water distribution channel are connected to the water inlet pipe respectively, the first water distribution channel is connected to the internal flow channel, and the second water distribution channel is connected to a valve core.

[0018] The utility model also provides a kind of pull-out faucet, including the pull-out device for the pull-out faucet of the one.

[0019] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0020] A kind of pull-out device for pull-out faucet, the pull-out device is arranged in the faucet seat body of the pull-out faucet;The pull-out device includes fixed pipe and sliding pipe, the sliding pipe slides in the fixed pipe, a water inlet space is formed between the sliding pipe and fixed pipe, the upper end of the sliding pipe is connected to the pull-out pipe of the pull-out faucet, and the lower end of the sliding pipe is communicated with the valve core water outlet end of the pull-out faucet;The water inlet space is communicated with external water source, and the water pressure in the water inlet space can act on the sliding pipe to push the sliding pipe to slide downwards to drive the pull-out pipe to move downwards.

[0021] The device sets fixed pipe and sliding pipe in the faucet seat body, and uses water pressure to push the sliding pipe to slide downwards to drive the pull-out pipe to reset, without the traditional weight device. This not only simplifies the structure of the pull-out pipe, but also effectively avoids the interference between the weight and the under-counter hose or other equipment, so that the pull-out process is smoother, and the user experience is improved.

[0022] Water pressure is used as driving force to ensure that the sliding pipe can quickly reset to the original position after use. Compared with gravity reset relying on weight, the thrust provided by water pressure is more stable and is not affected by installation environment, so that reliable reset can be realized even in the case that under-counter space is narrow or hose arrangement is complex.

[0023] By integrating the pull-out device inside the faucet seat body, the entire faucet structure is more compact and beautiful. In addition, the reset mode driven by water pressure reduces external components, further improves the overall design of the product, and meets the design concept of modern kitchen pursuing simplicity and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic view of the pull-out faucet in the preferred embodiment of the utility model;

[0025] Figure 2 It is an exploded view of the pull-out faucet in the preferred embodiment of the utility model;

[0026] Figure 3It is the sectional view of the pull-out device in the preferred embodiment of the utility model;

[0027] Figure 4 It is the sectional view of the pull-out device in the preferred embodiment of the utility model;

[0028] Figure 5 It is Figure 4 The local enlarged view of the;

[0029] Figure 6 It is the sectional view of the pull-out faucet in the preferred embodiment of the utility model, the water outlet end of the valve core is water outlet, and the pull-out pipe is not pulled out;

[0030] Figure 7 It is the sectional view of the pull-out faucet in the preferred embodiment of the utility model, the water outlet end of the valve core is water outlet, and the pull-out pipe is pulled out;

[0031] Figure 8 It is Figure 7 The local enlarged view of the;

[0032] Figure 9 It is the sectional view of the pull-out faucet in the preferred embodiment of the utility model, the water outlet end of the valve core is water outlet, and the pull-out pipe is not pulled out; Specific implementation

[0033] The utility model is further described below in combination with the drawings and specific implementation.

[0034] Referring to Figures 1-9 A pull-out faucet, the pull-out faucet comprises a faucet base body 1, a water outlet elbow pipe 2, a water outlet head 3, a pull-out pipe 4, a valve assembly 5 and a pull-out device 6.

[0035] The faucet base body 1 comprises a vertical pipe body 11 and a horizontal pipe body 12, the vertical pipe body 11 and the horizontal pipe body 12 are connected, the vertical pipe body 11 has a vertical chamber 111 inside, and the inside of the horizontal pipe body 12 has a horizontal chamber 121. The lower end of the vertical pipe body 11 can be fixedly connected to a table top, the lower end of the water outlet elbow pipe 2 is rotatably connected to the upper end of the vertical pipe body 11, and the valve assembly 5 is installed on the horizontal pipe body 12.

[0036] The valve assembly 5 comprises a valve seat 51, a valve core 52, a gland 53, a fixed cover 54, a semi-circular cover 55 and a handle 56. The valve seat 51 can be installed from the lateral opening 122 of the transverse pipe body 12, the connection between the transverse pipe body 12 and the vertical pipe body 11 is radially inwardly recessed to form a first step 13, the outer periphery of the valve seat 51 forms a second step 511 which is adapted to be connected with the first step 13, when the second step 511 abuts against the first step 13, the valve seat 51 is at least partially inserted into the vertical pipe body 11. The gland 53 is threadedly connected with the inner side of the transverse pipe body 12 to press against and fix the valve seat 51. The valve core 52 can be placed into the transverse chamber 121, the valve core 52 abuts against the valve seat 51 to be in fluid communication with the valve seat 51. The valve core 52 can be a temperature control valve capable of controlling flow and temperature, or a flow valve capable of only controlling flow, without limitation. The fixed cover 54 is threadedly connected with the transverse chamber 121 to press against and fix the valve core 52, and the semi-circular cover 55 is connected with the fixed cover 54 to cover the inlet of the transverse chamber 121.

[0037] The pull-out device 6 is arranged in the faucet base body 1. The pull-out device 6 comprises a fixed pipe 61 and a sliding pipe 62 which slides up and down in the fixed pipe 61. A water inlet space 63 is formed between the sliding pipe 62 and the fixed pipe 61, and the upper end of the sliding pipe 62 is connected with the pull-out pipe 4 of the pull-out faucet.

[0038] The lower end of the sliding pipe 62 communicates with the water outlet end 521 of the valve core of the pull-out faucet. The water inlet space 63 communicates with an external water source, and the water pressure in the water inlet space 63 can act on the sliding pipe 62 to push the sliding pipe 62 to slide downward to move the pull-out pipe 4 downward. The sliding pipe 62 receives the water pressure in the water inlet space 63 to receive a downward pushing force, and the user can pull out the water outlet head 3 for use. At this time, since the water inlet space 63 is connected with the external water source, the water pressure of the external water source can continuously act on the water inlet space 63. The sliding pipe 62 is always subjected to the water pressure, and after the user releases the water outlet head 3, the sliding pipe 62 slides downward to move the pull-out pipe 4 downward until the water outlet head 3 returns to the initial position.

[0039] The sliding pipe 62 is provided with a pressure bearing part 621, which comprises a first pressure bearing surface 6211 connected to the water inlet space 63 and a second pressure bearing surface 6212 connected to the valve core water outlet end 521. In this embodiment, the pressure bearing part 621 is located in the fixed pipe 61, the upper side of the pressure bearing part 621 forms the water inlet space 63, and the lower side of the pressure bearing part 621 is connected to the valve core water outlet end 521. In this embodiment, the lower end of the sliding pipe 62 is radially expanded to form the pressure bearing part 621, the first pressure bearing surface 6211 is annular and faces the water inlet space 63, and the second pressure bearing surface 6212 is annular and faces away from the water inlet space 63. When the water inlet space 63 and the valve core water outlet end 521 are both filled with water (i.e. when the pull-out pipe 4 is being pulled out), the second pressure bearing surface 6212 is subjected to an upward thrust, and the first pressure bearing surface 6211 is subjected to a downward thrust. At this time, the thrust on the first pressure bearing surface 6211 is counteracted by the thrust on the second pressure bearing surface 6212. Therefore, the user can more easily pull out the water outlet head 3. In this embodiment, the second pressure bearing surface 6212 is substantially equal to the first pressure bearing surface 6211. Therefore, when the pressure bearing part 621 is subjected to pressure from both the upper and lower sides, the upper and lower sides of the sliding pipe 62 are in a state of water pressure balance.

[0040] In this embodiment, the pressure bearing part 621 is the lower end of the sliding pipe 62. Therefore, the outer peripheral wall of the pressure bearing part 621 and the inner wall of the fixed pipe 61 are sealingly connected by a first sealing ring 641. Since the first sealing ring 641 is located between the first pressure bearing surface 6211 and the second pressure bearing surface 6212, the first sealing ring 641 is more stable during sliding.

[0041] The valve core water outlet end 521 and the fixed pipe 61 are connected by a water outlet pipe 7. The valve core water outlet end 521 can control water outlet or stop water outlet. When the valve core water outlet end 521 is in water outlet, water flows through the water outlet pipe 7 into the fixed pipe 61, then flows into the sliding pipe 62 from the lower end of the sliding pipe 62, and finally flows into the pull-out pipe 4 from the upper end of the sliding pipe 62 and flows out from the water outlet head 3. During this process, since the sliding pipe 62 is in a state of water pressure balance, the user can more easily pull out the water outlet head 3. When the valve core water outlet end 521 stops water outlet, since the second pressure bearing surface 6212 is not subjected to water pressure, the sliding pipe 62 is only subjected to a downward thrust, and water from the external water source can continuously enter the water inlet space 63, forcing the sliding pipe 62 to move downward to drive the pull-out pipe 4 to move downward.

[0042] The pulling device 6 further comprises a water inlet base 65. The water inlet base 65 is fixedly arranged on the faucet base body 1, the fixed pipe 61 is fixedly arranged on the water inlet base 65, the valve seat 51 is arranged on the water inlet base 65, and the water inlet base 65 comprises an internal flow channel 652 connecting the fixed pipe 61 and the valve seat 51; the valve seat 51 is communicated with the external water source to connect the internal flow channel 652. The upper end of the fixed pipe 61 is screwed on the water inlet base 65, and the upper end of the fixed pipe 61 is connected with the internal flow channel 652. The upper end of the sliding pipe 62 passes through the water inlet base 65 upwardly and is slidingly connected on the water inlet base 65. The outer wall of the sliding pipe 62 is sealingly connected with the water inlet base 65 through a second sealing ring 642, and the sliding pipe 62 can slide more smoothly through the first sealing ring 641 and the second sealing ring 642.

[0043] The valve seat 51 is provided with a matching recess 512 on the side facing the fixed pipe 61; the matching recess 512 can fit the outer wall of the fixed pipe 61, and the valve seat 51 and the water inlet base 65 are connected through a plug-in structure to make the valve seat 51 connected with the internal flow channel 652. In this embodiment, the plug-in structure comprises a water inlet recess 513 arranged on the valve seat 51 and a water inlet protrusion 651 arranged on the water inlet base 65, and the water inlet protrusion 651 can be plugged into the water inlet recess 513.

[0044] During installation, the valve seat 51 is arranged in the horizontal chamber 121, the matching recess 512 of the valve seat 51 is arranged in the vertical chamber 111, and the water inlet base 65 is arranged from the upper end opening of the vertical chamber 111 to be plugged into the valve seat 51, and the water inlet base 65 can be clamped on the upper end opening of the vertical chamber 111, and the matching recess 512 is adapted to position the fixed pipe 61. Specifically, the valve assembly 5 is first installed on the horizontal chamber 121, the fixed pipe 61, the sliding pipe 62 and the water inlet base 65 are connected together, and then the water inlet base 65 is installed downwardly to the upper end opening of the vertical chamber 111, at this time the fixed pipe 61 is arranged in the vertical chamber 111 and is positioned with the matching recess 512. The water outlet pipe 7 is connected with the valve seat 51 and the fixed pipe 61.

[0045] In the embodiment, the valve seat 51 is connected to the external water source through the water inlet pipe 57, the valve seat 51 comprises a first water distribution channel 514 and a second water distribution channel 515, the first water distribution channel 514 and the second water distribution channel 515 are respectively connected to the water inlet pipe 57, the first water distribution channel 514 is connected to the internal flow channel 652, and the second water distribution channel 515 is connected to the valve core 52. Since the first water distribution channel 514 and the second water distribution channel 515 are both connected to the water inlet pipe 57, when the valve core 52 opens the water outlet end 521 of the valve core and the sliding pipe 62 moves upward, the water in the water inlet space 63 can flow to the valve core 52 through the first water distribution channel 514 (the first water distribution channel 514 and the second water distribution channel 515 are connected through the water inlet pipe 57), and the pressure is not blocked. When the water outlet end 521 of the valve core stops discharging water, the excess water in the fixed pipe 61 can flow out through the water outlet head 3.

[0046] In the embodiment, the fixed pipe 61 is a rigid pipe, and the sliding pipe 62 is a flexible pipe or a rigid pipe.

[0047] The above is only a preferred embodiment of the present application, but the design concept of the present application is not limited to this. Any skilled person in the art can make non-essential changes to the present application within the scope of the present application, and such changes shall not be deemed to be within the scope of the present application.

Claims

1. A puller device for a pull-out faucet, characterized by, The pulling device is arranged in the faucet base body of the pull-out faucet; The pulling device comprises a fixed pipe and a sliding pipe, the sliding pipe slides up and down in the fixed pipe, a water inlet space is formed between the sliding pipe and the fixed pipe, the upper end of the sliding pipe is connected with the pull-out pipe of the pull-out faucet, and the lower end of the sliding pipe is communicated with the water outlet end of the valve core of the pull-out faucet; the water inlet space is communicated with an external water source, and the water pressure in the water inlet space can act on the sliding pipe to push the sliding pipe to slide downward to drive the pull-out pipe to move downward.

2. A puller device for a pull-out faucet as defined in claim 1, characterized in that: The sliding pipe is provided with a pressure bearing part, the pressure bearing part comprises a first pressure bearing surface connected with the water inlet space and a second pressure bearing surface connected with the water outlet end of the valve core.

3. A puller device for a pull-out faucet as defined in claim 2, wherein: The pressure bearing part is located in the fixed pipe, the upper side of the pressure bearing part forms the water inlet space, and the lower side of the pressure bearing part is communicated with the water outlet end of the valve core.

4. A puller device for a pull-out faucet as defined in claim 3, wherein: A water outlet pipe is connected between the water outlet end of the valve core and the fixed pipe.

5. A puller for a pull-out faucet as defined in claim 1, wherein: The pulling device further comprises a water inlet seat; The water inlet seat is fixedly arranged on the faucet base body, the fixed pipe is fixedly arranged on the water inlet seat, a valve seat is arranged on the water inlet seat, and the water inlet seat comprises an internal flow channel connecting the fixed pipe and the valve seat; the valve seat is communicated with the external water source to connect the internal flow channel.

6. A puller device for a pull-out faucet as defined in claim 5, wherein: The side of the valve seat facing the fixed pipe is provided with a matching recess; The matching recess can fit the outer side wall of the fixed pipe, and the valve seat and the water inlet seat are connected through a plug-in structure to enable the valve seat to connect the internal flow channel.

7. A puller device for a pull-out faucet as defined in claim 6, characterized in that: The plug-in structure comprises a water inlet recess arranged on the valve seat and a water inlet protrusion arranged on the water inlet seat, and the water inlet protrusion can be plugged into the water inlet recess.

8. A puller device for a pull-out faucet as defined in claim 6, wherein: The faucet base body comprises a vertical chamber and a horizontal chamber, and the horizontal chamber is connected with the vertical chamber; The valve seat is arranged in the horizontal chamber, the matching recess of the valve seat is arranged in the vertical chamber, the water inlet seat is arranged in the vertical chamber from the upper end opening to be able to be plugged into the valve seat, and the matching recess fits and positions the fixed pipe.

9. A puller device for a pull-out faucet as defined in claim 5, wherein: The valve seat is connected with the external water source through a water inlet pipe, the valve seat comprises a first water distribution channel and a second water distribution channel, the first water distribution channel and the second water distribution channel are respectively connected with the water inlet pipe, the first water distribution channel is connected with the internal flow channel, and the second water distribution channel is connected with a valve core.

10. A pull-out faucet characterized by, The pulling device comprises a faucet base body, a valve seat, a water inlet seat, a fixed pipe, a sliding pipe, a pull-out pipe, a water inlet space, a water outlet end of a valve core, a water outlet pipe, a pressure bearing part, a water inlet recess, a water inlet protrusion, a vertical chamber, a horizontal chamber, a first water distribution channel, a second water distribution channel, and a water inlet pipe.

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