Search

CN-224201902-U - Anti-electricity wall device and electric water heater

CN224201902UCN 224201902 UCN224201902 UCN 224201902UCN-224201902-U

Abstract

The utility model relates to an electric water heater technical field discloses an electricity prevention wall device and electric water heater. Wherein one end of the outer tube of the electricity-proof wall device is provided with a water outlet, and the other end is provided with an installation cavity; the sleeve is arranged in the mounting cavity in a closed mode, one end of the sleeve, which is closed, faces the water outlet, and the outer wall of the sleeve and the inner wall of the mounting cavity enclose a first flow channel which is communicated with the water outlet; a water inlet is formed in one end of the inner tube, the inner tube is inserted into the opening end of the sleeve, the water inlet is far away from the closed end of the sleeve, a second flow passage is formed in the inner tube, a third flow passage is formed between the outer wall of the inner tube and the inner wall of the sleeve, one end of the third flow passage is communicated with the second flow passage, and the other end of the third flow passage is communicated with the first flow passage; and a flow guide surface is arranged at the communication position of the second flow channel and the third flow channel and/or at the communication position of the third flow channel and the first flow channel. The utility model discloses a prevent electric wall device influences littleer to the play water flow, has guaranteed the play water flow.

Inventors

  • Xiao Xupeng

Assignees

  • 广东万和电气有限公司

Dates

Publication Date
20260505
Application Date
20250425

Claims (10)

  1. 1. Prevent electric wall device, its characterized in that includes: An outer tube (100), one end of which is provided with a water outlet (110) and the other end of which is provided with an installation cavity (101); the sleeve (200) is provided with an opening at one end and a closed end, the sleeve (200) is arranged in the installation cavity (101), the closed end of the sleeve (200) faces the water outlet (110), a first flow channel (201) is formed by surrounding the outer wall of the sleeve (200) and the inner wall of the installation cavity (101), and the first flow channel (201) is communicated with the water outlet (110); A water inlet (310) is formed in one end of the inner pipe (300), the inner pipe (300) is inserted into the sleeve (200), the water inlet (310) is far away from one closed end of the sleeve (200), a second flow channel (301) is formed in the inner pipe (300), a third flow channel (302) is formed between the outer wall of the inner pipe (300) and the inner wall of the sleeve (200), one end of the third flow channel (302) is communicated with the second flow channel (301), and the other end of the third flow channel (302) is communicated with the first flow channel (201); And a flow guiding surface is arranged at the communication position of the second flow channel (301) and the third flow channel (302) and/or the communication position of the third flow channel (302) and the first flow channel (201).
  2. 2. The electricity prevention wall device according to claim 1, wherein the inner tube (300) is provided with a mounting flange (320), the mounting flange (320) is arranged in the circumferential direction of the water inlet (310) and is in sealing connection with the inner wall of the mounting cavity (101), one end of the mounting flange (320) facing the water outlet (110) is provided with a first arc surface (321), the first arc surface (321) is used as the flow guiding surface, and the first arc surface (321) is recessed away from the water outlet (110).
  3. 3. The electricity protection wall device according to claim 2, characterized in that the mounting flange (320) is in interference fit with the inner wall of the mounting cavity (101) or a sealing ring is arranged between the mounting flange (320) and the inner wall of the mounting cavity (101).
  4. 4. The electricity preventing wall device according to claim 2, wherein the outer wall of the sleeve (200) is provided with more than three ribs (210) along the circumferential direction, the ribs (210) extend along the axial direction of the sleeve (200), the outer side walls of the ribs (210) are abutted with the inner wall of the installation cavity (101), the inner wall of the installation cavity (101) close to the water outlet (110) is provided with an installation table (120), and one end of each rib (210) extends out of the sleeve (200) and is abutted with the installation table (120); and/or, the inner wall of the sleeve (200) is provided with more than three raised strips (240) along the circumferential direction, the raised strips (240) extend along the axial direction of the sleeve (200), and the raised strips (240) are abutted with the outer wall of the inner tube (300).
  5. 5. The electricity-proof wall device according to claim 2, wherein the opening end of the sleeve (200) is provided with a plurality of abutting blocks (211), the abutting blocks (211) are circumferentially arranged at intervals, and the abutting blocks (211) are attached to the first arc surface (321).
  6. 6. The electricity preventing wall device according to claim 1, wherein the inner wall of the closed end of the sleeve (200) is provided with a diverting protrusion (230), the diverting protrusion (230) is coaxially arranged with the second flow channel (301), the diverting protrusion (230) is tapered, and the smaller end of the diverting protrusion (230) is directed toward the water inlet (310).
  7. 7. The electricity preventing wall device according to claim 6, wherein a second arc surface (220) is provided on an inner wall of the closed end of the sleeve (200), two sides of the second arc surface (220) are respectively connected with the diverting protrusion (230) and the side wall of the sleeve (200), the second arc surface (220) is used as the diversion surface, and the second arc surface (220) is recessed away from the water inlet (310).
  8. 8. The electricity preventing wall device according to claim 7, wherein an end of the inner tube (300) remote from the water inlet (310) is provided with a third arc surface (330); or, the outer wall of the closed end of the sleeve (200) is provided with a fourth arc surface (260).
  9. 9. The electricity preventing wall device according to any one of claims 1 to 7, wherein a flaring section (130) is arranged between the installation cavity (101) and the water outlet (110), the flaring section (130) is communicated with the first flow channel (201) and the water outlet (110), and the inner diameter of the flaring section (130) is gradually increased from the water outlet (110) to the installation cavity (101).
  10. 10. An electric water heater comprising an electricity protection wall arrangement according to any one of claims 1 to 9.

Description

Anti-electricity wall device and electric water heater Technical Field The utility model relates to the technical field of electric water heaters, in particular to an electricity-proof wall device and an electric water heater. Background The electric water heater electricity-proof wall is a safety device for preventing the electric water heater from damaging human body due to leakage current generated in the use process. The working principle is mainly based on the attenuation and isolation of current by using the resistance of water, so that the safety of users is protected. The current electric water heater prevents electric wall structure for improving the resistance of water itself, sets up the rivers route of buckling generally and realizes, but the resistance of this kind of mode is great, can influence the play water flow of preventing electric wall structure. Therefore, a need exists for an anti-electric wall device and an electric water heater to solve the above problems. Disclosure of utility model One of the technical problems to be solved by the utility model is to provide an electricity-proof wall device which can reduce the resistance of water and improve the water outlet flow on the basis of realizing electricity prevention. The second technical problem to be solved by the utility model is to provide an electric water heater which can reduce the resistance of water and improve the water outlet flow on the basis of realizing electricity prevention. The first technical problem is solved by the following technical scheme: An electricity-proof wall device, comprising: one end of the outer tube is provided with a water outlet, the other end is provided with an installation cavity; The sleeve is arranged in the mounting cavity, one end of the sleeve is open, the other end of the sleeve is closed, the closed end of the sleeve faces the water outlet, a first flow passage is formed by surrounding the outer wall of the sleeve and the inner wall of the mounting cavity, and the first flow passage is communicated with the water outlet; The inner pipe is provided with a water inlet at one end, the inner pipe is inserted into the opening end of the sleeve, the water inlet is far away from the closed end of the sleeve, a second flow passage is arranged in the inner pipe, a third flow passage is arranged between the outer wall of the inner pipe and the inner wall of the sleeve, one end of the third flow passage is communicated with the second flow passage, and the other end of the third flow passage is communicated with the first flow passage; and a flow guide surface is arranged at the communication position of the second flow passage and the third flow passage and/or at the communication position of the third flow passage and the first flow passage. Compared with the background technology, the electricity-proof wall device has the following beneficial effects: According to the utility model, the outer pipe, the sleeve and the inner pipe are arranged, the water inlet is arranged at one end of the inner pipe, the water outlet is arranged at one end of the outer pipe, so that water flows into the electricity-proof wall device through the water inlet, flows through the second flow passage, the third flow passage and the first flow passage in sequence, finally flows out of the electricity-proof wall device through the water outlet, and the electricity-proof effect is realized by utilizing a bending waterway formed by the second flow passage, the third flow passage and the first flow passage, so that the safety of a user is further protected. Meanwhile, the diversion surface is arranged at the turning part of the water flow and used for diversion of the water flow, so that the water flow resistance of the turning part is reduced, the influence on the water yield of the electricity-proof wall device is reduced, and the water yield of the electricity-proof wall device is improved on the basis of realizing electricity prevention. In one embodiment, the inner pipe is provided with a mounting flange, the mounting flange is arranged in the circumferential direction of the water inlet and is in sealing connection with the inner wall of the mounting cavity, one end of the mounting flange, which faces the water outlet, is provided with a first arc surface, the first arc surface serves as the guide surface, and the first arc surface is recessed away from the direction of the water outlet. In one embodiment, the mounting flange is in interference fit with the inner wall of the mounting cavity, or a sealing ring is arranged between the mounting flange and the inner wall of the mounting cavity. In one embodiment, the outer wall of the sleeve is provided with more than three ribs along the circumferential direction, the ribs extend along the axial direction of the sleeve, the outer side walls of the ribs are in abutting connection with the inner wall of the mounting cavity, which is close to the water outlet, is provided with