CN212013092U - Electric heating tube of water boiler - Google Patents

Abstract

The utility model discloses a boiler electrothermal tube, including chassis, metal sleeve and wiring board, the top on metal sleeve runs through the chassis and extends to the top on chassis to the one end that metal sleeve extended to the chassis top passes through insulating block fixed connection with the bottom of wiring board, its characterized in that, the top on chassis is provided with the closing cap to the equal fixedly connected with fixed plate in both sides of closing cap bottom, the bottom of fixed plate runs through the chassis and extends to the bottom on chassis, the equal fixedly connected with spacing case in both sides of chassis bottom, the utility model relates to an electrothermal tube technical field. This boiler electrothermal tube can carry out fine sealing with the junction of wiring board and wire, has avoided external dust or other materials rather than the short circuit that causes after the contact, has reduced holistic potential safety hazard, also can carry out fine protection to wiring board and wire, has increased holistic life to a certain extent, and the practicality is strong.

Description

Electric heating tube of water boiler

Technical Field

The utility model relates to an electrothermal tube technical field especially relates to a boiler electrothermal tube.

Background

The electric heating tube is made up by using metal tube as shell (including stainless steel and copper tube), along the central axial direction of said metal tube uniformly distributed spiral electric heating alloy wires, the gap is filled with and compacted with magnesia sand with good insulating and heat-conducting properties, and two ends of tube mouth are sealed by using silica gel. The top of the electric heating tube is generally provided with a wiring board, then the electric heating tube can work after the conducting wires are electrically connected with the wiring board, in some large-scale water boilers, the wiring board and the conducting wires on the top of the electric heating tube are directly exposed, if dust or other objects are contacted with the wiring part, the whole short circuit is easily caused, and certain potential safety hazards exist.

Traditional boiler electrothermal tube can not carry out fine sealing with the junction of wiring board and wire, and external dust or other materials cause the short circuit rather than contacting the back easily, have increased holistic potential safety hazard, also can not carry out fine protection to wiring board and wire, have reduced holistic life to a certain extent, and the practicality is not strong.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the electric heating tube of the water boiler in the prior art can not carry out fine sealing on the junction of the wiring board and the conducting wire, and providing the electric heating tube of the water boiler.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an electric heating tube of a water boiler comprises a chassis, a metal sleeve and a wiring board, wherein the top end of the metal sleeve penetrates through the chassis and extends to the top of the chassis, one end of the metal sleeve extending to the top of the chassis is fixedly connected with the bottom of the wiring board through an insulating block, the electric heating tube is characterized in that a sealing cover is arranged at the top of the chassis, fixing plates are fixedly connected to two sides of the bottom of the sealing cover, the bottom of each fixing plate penetrates through the chassis and extends to the bottom of the chassis, limiting boxes are fixedly connected to two sides of the bottom of the chassis, sliding rails are fixedly connected to the tops of inner cavities of the limiting boxes, sliding grooves are formed in the sliding rails, limiting plates are slidably connected to the inner walls of the sliding grooves through sliding blocks, reset springs are fixedly connected between the right sides of the limiting plates and the right sides of the inner cavities of the limiting boxes, the bottoms of, the top of the sealing cover is communicated with a curved pipe, a pipe cap is arranged at one end of the curved pipe, and a rubber sleeve is bonded on the inner wall of the pipe cap.

Preferably, the roller water boiler electric heating tube is fixedly connected to the top of the limiting plate water boiler electric heating tube positioned in the limiting box water boiler electric heating tube inner cavity, and the top of the roller water boiler electric heating tube is in sliding connection with the top of the chute water boiler electric heating tube inner wall.

Preferably, a sealing ring electric heating tube of the water boiler is arranged between the top of the electric heating tube of the chassis water boiler and the bottom of the electric heating tube of the cover water boiler.

Preferably, the opening boiler electrothermal tube that cooperatees and uses with fixed plate boiler electrothermal tube is all seted up to the inside both sides of chassis boiler electrothermal tube, the through-hole that cooperatees and uses with limiting plate boiler electrothermal tube is seted up to the inside of fixed plate boiler electrothermal tube the opening boiler electrothermal tube that cooperatees and uses with fixed plate boiler electrothermal tube is all seted up to the inside both sides of chassis boiler electrothermal tube, the through-hole that cooperatees and uses with limiting plate boiler electrothermal tube is seted up to the inside of fixed plate boiler electrothermal.

Preferably, the number of the electric heating tubes of the wiring board water boiler is at least six, and the electric heating tubes are consistent in shape and size.

Preferably, the surface of the electric heating tube of the tube cap water boiler is in threaded connection with the inner wall of the electric heating tube of the curved tube water boiler through the threaded block.

Compared with the prior art, the utility model provides a boiler electrothermal tube possesses following beneficial effect: fixedly connected with reset spring between the right side through the limiting plate and the right side of limiting box inner chamber, the bottom of limiting plate runs through limiting box and fixed plate in proper order and extends to the outside of fixed plate, the top intercommunication of closing cap has curved venturi tube, and the one end of curved venturi tube is provided with the pipe cap, the inner wall of pipe cap bonds and has the rubber sleeve, can carry out fine sealing with the junction of wiring board and wire, the short circuit that causes after having avoided external dust or other materials rather than the contact, holistic potential safety hazard has been reduced, also can carry out fine protection to wiring board and wire, holistic life has been increased to a certain extent, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a perspective view of an electric heating tube structure of a water boiler;

FIG. 2 is a perspective view of a time-sharing structure of a cover and a chassis in an electrothermal tube of a water boiler;

FIG. 3 is a front view of a structure of a base plate and a sealing cover in an electrothermal tube of the water boiler;

FIG. 4 is a sectional view of a structure of a limiting box in an electric heating tube of the water boiler;

FIG. 5 is a side view of a slide rail and a limiting plate structure in an electric heating tube of the water boiler;

FIG. 6 is an enlarged view of a portion A in FIG. 1 of an electric heating tube of the water boiler;

fig. 7 is a perspective view of the structure of the electric heating tube of the water boiler when a curved tube and a tube cap are separated.

In the figure: 1-chassis, 2-metal sleeve, 3-wiring board, 4-sealing cover, 5-fixing board, 6-limit box, 7-slide rail, 8-slide groove, 9-slide block, 10-limit board, 11-reset spring, 12-curved pipe, 13-pipe cap, 14-rubber sleeve, 15-roller, 16-sealing ring, 17-opening and 18-thread block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 7, in the embodiment of the present invention, an electric heating tube for a water boiler includes a chassis 1, a metal sleeve 2 and a wiring board 3, the top end of the metal sleeve 2 penetrates through the chassis 1 and extends to the top of the chassis 1, and one end of the metal sleeve 2 extending to the top of the chassis 1 is fixedly connected to the bottom of the wiring board 3 through an insulating block, the electric heating tube uses a metal tube as a housing, spiral electric heating alloy wires are uniformly distributed along the central axial direction of the tube, gaps are filled therein, magnesia sand having good insulating and heat conducting properties is compacted, two ends of a tube orifice are sealed by the insulating block, so that the metal sleeve 2 is fixedly connected to the chassis 1 through the insulating block, a sealing cover 4 is disposed on the top of the chassis 1, fixing plates 5 are fixedly connected to two sides of the bottom of the sealing cover 4, the bottom of the fixing plates 5 penetrates through the chassis 1 and extends to the bottom, and the top fixedly connected with slide rail 7 of 6 inner chambers of spacing case, spout 8 has been seted up to the inside of slide rail 7, and there is limiting plate 10 inner wall of spout 8 through slider 9 sliding connection, fixedly connected with reset spring 11 between the right side of limiting plate 10 and the right side of 6 inner chambers of spacing case, limiting plate 10's bottom runs through spacing case 6 and fixed plate 5 in proper order and extends to the outside of fixed plate 5, the top intercommunication of closing cap 4 has bent venturi tube 12, and the one end of bent venturi tube 12 is provided with pipe cap 13, the inner wall of pipe cap 13 bonds and has rubber sleeve 14, rubber sleeve 14 is made by flexible rubber materials, can carry out fine sealing to the gap department between wire and the pipe cap 13.

Referring to fig. 5, the limiting plate 10 is fixedly connected to the roller 15 at the top of the inner cavity of the limiting box 6, the top of the roller 15 is slidably connected to the top of the inner wall of the sliding groove 8, and the roller 15 can increase the smoothness of the limiting plate 10 moving in the sliding groove 8, so that the limiting plate is convenient for a user to use.

Referring to fig. 2 to 4, a sealing ring 16 is disposed between the top of the chassis 1 and the bottom of the sealing cover 4, and the sealing ring 16 can well seal a gap between the chassis 1 and the sealing cover 4, so as to avoid the entry of foreign substances. The opening 17 matched with the fixing plate 5 for use is formed in each of two sides of the inner portion of the chassis 1, and the through hole matched with the limiting plate 10 for use is formed in the inner portion of the fixing plate 5. The number of the wiring boards 3 is at least six and the shape and size are uniform.

Referring to fig. 6 to 7, the surface of the cap 13 is screwed to the inner wall of the curved tube 12 through a screw block 18.

In the utility model, a user can firstly pass a wire through a pipe cap 13 and a curved pipe 12 in sequence, then the wire is led to the bottom of a sealing cover 4 and is electrically connected with a wiring board 3, after connection, the user firstly pulls a limiting plate 10 to a central position close to a chassis 1, the limiting plate 10 drives a reset spring 11 to compress after moving, at the moment, the reset spring 11 accumulates certain elastic force, then the sealing cover 4 is attached to the chassis 1, so that a fixing plate 5 can move to the bottom of the chassis 1 through an opening 17, at the moment, the limiting plate 10 is loosened, under the elastic force action of the reset spring 11, the limiting plate 10 can move to the inside of the fixing plate 5, the position of the sealing cover 4 at the top of the chassis 1 is limited through the fixing plate 5, then the user can fixedly connect the curved pipe 12 with a thread block 18 on the pipe cap 13, so that a rubber sleeve 14 inside the pipe cap 13 can be well attached to the wire, the entry of foreign matter from the gap between wire and pipe cap 13 has been avoided, and the installation back is accomplished, and the user can be to the wire circular telegram, and then passes through wiring board 3 and circular telegram to the inside resistance wire of metal pipe sleeve 2, just so can work.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An electric heating tube of a water boiler comprises a chassis (1), a metal sleeve (2) and a wiring board (3), wherein the top end of the metal sleeve (2) penetrates through the chassis (1) and extends to the top of the chassis (1), one end of the metal sleeve (2) extending to the top of the chassis (1) is fixedly connected with the bottom of the wiring board (3) through an insulating block, the electric heating tube is characterized in that a sealing cover (4) is arranged at the top of the chassis (1), fixing plates (5) are fixedly connected to two sides of the bottom of the sealing cover (4), the bottom of each fixing plate (5) penetrates through the chassis (1) and extends to the bottom of the chassis (1), limiting boxes (6) are fixedly connected to two sides of the bottom of the chassis (1), sliding rails (7) are fixedly connected to the tops of inner cavities of the limiting boxes (6), sliding grooves (8) are formed in the sliding rails (7, and the inner wall of spout (8) has limiting plate (10) through slider (9) sliding connection, fixedly connected with reset spring (11) between the right side of limiting plate (10) and the right side of limiting box (6) inner chamber, the bottom of limiting plate (10) runs through limiting box (6) and fixed plate (5) in proper order and extends to the outside of fixed plate (5), the top intercommunication of closing cap (4) has bent venturi tube (12) to the one end of bent venturi tube (12) is provided with pipe cap (13), the inner wall of pipe cap (13) bonds and has rubber sleeve (14).

2. The electric heating tube of the water boiler according to claim 1, characterized in that the limiting plate (10) is fixedly connected with a roller (15) at the top of the inner cavity of the limiting box (6), and the top of the roller (15) is connected with the top of the inner wall of the chute (8) in a sliding way.

3. A boiler electrical heating tube according to claim 1, characterized in that a sealing ring (16) is arranged between the top of the chassis (1) and the bottom of the cover (4).

4. The electric heating tube of the water boiler according to claim 1, wherein openings (17) matched with the fixing plate (5) are formed on both sides of the inner part of the chassis (1), and through holes matched with the limiting plates (10) are formed in the fixing plate (5).

5. The boiler electrical heating tube according to claim 1, characterized in that the number of the terminal plates (3) is at least six and the shape and size are uniform.

6. The boiler electrical heating tube according to claim 1, characterized in that the surface of the cap (13) is screwed with the inner wall of the curved tube (12) by means of a screw block (18).

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