CN209694924U - A kind of instant heating type drinking machine heater - Google Patents

Abstract

The utility model relates to water dispenser technical fields, specifically disclose a kind of instant heating type drinking machine heater.The instant heating type drinking machine heater of the utility model includes heater housings (1), heating tube (10) are equipped in the heater housings (1), heating tube (10) bottom connects water inlet pipe by water pipe head (3), is equipped with check valve (4) in the water pipe head (3).The instant heating type drinking machine heater of the utility model is provided with check valve in the water inlet end of heating tube, can effectively prevent hot water return.

Description

A kind of instant heating type drinking machine heater

Technical field

The utility model relates to water dispenser technical fields, and in particular to a kind of instant heating type drinking machine heater.

Background technique

In the prior art, the heating tube of instant heating type drinking machine heater is generally intake from bottom, top water outlet, heating tube bottom Portion connects water inlet pipe.In this way, the hot water in heating tube will flow back, and hot water return is not only after using water dispenser to turn off Cold water can be become warm water, it is also possible to damage to the material of some non-high-temperature resistants in heating tube front end.

In view of the above drawbacks, the utility model creator obtains originally practical new finally by prolonged research and practice Type.

Utility model content

To solve above-mentioned technological deficiency, the technical solution adopted in the utility model is, provides a kind of instant heating type drinking machine Heater, including heater housings, the heater case body is interior to be equipped with heating tube, and the heating bottom of the tube passes through water pipe head and connects Water pipe is tapped into, is equipped with check valve in the water pipe head.

Optionally, the check valve includes fixed part and spool, and the fixed part is fixedly connected with the water pipe head, institute It states fixed part and is flexibly connected with the spool by spring, the inlet opening of water pipe head described in the spool face.

Optionally, the water pipe head includes first connecting portion, second connecting portion and third interconnecting piece, first connection Portion is equipped with the inlet opening, the second connecting portion is for fixing for connecting with the water inlet pipe in the first connecting portion The check valve, the third interconnecting piece is for connecting the heating tube.

Optionally, sealing ring is equipped between the third interconnecting piece and the heating tube.

Optionally, the fixed part includes fixed ring, connection strap and snap ring, and the fixed ring passes through the connection strap and institute Snap ring is stated to be fixedly connected.

Optionally, the snap ring includes upper snap ring and lower snap ring, and the internal diameter of the upper snap ring is less than the interior of the lower snap ring Diameter.

Optionally, the spool includes valve head and valve rod, and the valve rod outer diameter is less than the valve head outer diameter.

Optionally, it is cased with the spring on the valve rod, the spring is cased on the valve rod, the valve rod outer diameter is less than The internal diameter of the upper snap ring and the lower snap ring, the spring outer diameter are greater than the upper snap ring internal diameter, and the spring inside diameter is less than The valve head outer diameter.

Optionally, the valve head lower end is a rotary table.

Optionally, the heater housings top is fixedly connected with steam separator box, the heater housings lower part and institute It states water pipe head to be fixedly connected, the heating tube is thick-film heating pipe.

The beneficial effect of the instant heating type drinking machine heater of the utility model is compared with the prior art: in heating tube Water inlet end is provided with check valve, can effectively prevent hot water return.

Detailed description of the invention

It, below will be to institute in embodiment description in order to illustrate more clearly of the technical solution in various embodiments of the utility model Attached drawing to be used is needed to be briefly described.

Fig. 1 is the external structure of the utility model instant heating type drinking machine heater；

Fig. 2 is the sectional view in Fig. 1 at I-I；

Fig. 3 is the partial enlarged view in Fig. 2 at A；

Fig. 4 is the explosive view of water pipe head Yu check valve assembling structure；

Fig. 5 is sectional view at fixed part V-V in Fig. 4.

Description of symbols:

1. 10. heating tube of heater housings 2. steam separator box, 3. water pipe head, 4. check valve, 11. sealing ring 31. 43. fixed part of first connecting portion 32. second connecting portion, 33. third interconnecting piece, 41. spool, 42. spring, 310. inlet opening The lower snap ring of 411. valve head, 412. valve rod, 431. fixed ring, 432. connection strap, 433. snap ring, 4331. upper snap ring 4332.

Specific embodiment

Below in conjunction with attached drawing, the above and other technical features and advantages of the present invention are described in more detail.

Embodiment 1

Referring to figs. 1 and 2, a kind of instant heating type drinking machine heater, including heater housings 1, in heater housings 1 Heating tube 10 is installed, 10 bottom of heating tube is fixedly connected with a water pipe head 3, and water pipe head 3 connects water inlet pipe, water inlet pipe below It is connected to the container of supply cold water and/or normal-temperature water.

A check valve 4 is provided in water pipe head 3, which can ensure that water can only be flowed to from water inlet pipe and heat Pipe 10, and water inlet pipe cannot be flowed back to from heating tube 10.So it is possible to prevente effectively from the water in heating tube 10 flows back into water inlet pipe, Prevent 10 dry combustion method of heating tube.

In the present embodiment, check valve 4 is arranged in water pipe head 3, rather than is arranged on inlet pipeline, can be preferable It ensures that hot water is completely restricted in heating tube 10, protects entire inlet pipeline not have hot water return entrance, reduce heating tube 10 dry combustion methods avoid the non-high-temperature resistant material hot water of inlet pipeline.

Preferably, heating tube 10 is thick-film heating pipe.Thick-film heating pipe quick heating, it is high-efficient, more need anti-backflow Check valve 4, reduce 10 dry combustion method of heating tube the case where.

Embodiment 2

As shown in Figure 3 and Figure 4, on the basis of the above embodiments, the present embodiment the difference is that, water pipe head 3 Including first connecting portion 31, second connecting portion 32 and third interconnecting piece 33, first connecting portion 31 is used to connect with water inlet pipe, and with Water inlet pipe grafting sealing, first connecting portion 31 is interior to be equipped with inlet opening 310, and inlet opening 310 is a cylindrical hole.Second connecting portion 32 for fixing check valve 4.Third interconnecting piece 33 is for being connected to the heating tube 10.Sealing ring is equipped on the inside of third interconnecting piece 33 11, which fits closely with 33 inner wall of third interconnecting piece, and 11 inner wall of sealing ring is fitted closely with heating tube 10, protects Hinder the sealed connection between heating tube 10 and water pipe head 3.

The outer diameter of first connecting portion 31 is less than the outer diameter of second connecting portion 32, and the outer diameter of second connecting portion 32 connects less than third The outer diameter of socket part 33；The internal diameter of first connecting portion 31 is less than the internal diameter of second connecting portion 32, and the internal diameter of second connecting portion 32 is less than The internal diameter of third interconnecting piece 33.First step, second connecting portion are formed between first connecting portion 31 and second connecting portion 32 in this way Second step is formed between 32 and third interconnecting piece 33.

Check valve 4 includes fixed part 43 and spool 41, and fixed part 43 is used to be fixedly connected with water pipe head 3；Spool 41 The inlet opening 310 of face water pipe head 3, can block inlet opening 310.

Fixed part 43 is flexibly connected with spool 41 by spring 42.As shown in figure 5, fixed part 43 includes fixed ring 431, connects Narrow bars 432 and snap ring 433, fixed ring 431 are the tubular structure with certain altitude, and fold outward is equipped at the top of the tubular structure The edge of one circle, which can be connected on second step.The lateral wall of fixed ring 431 and the vertical inside of second connecting portion 32 Wall interference fitting.431 center of fixed ring is equipped with snap ring 433, and snap ring 433 and fixed ring 431 are coaxial, and 433 center of snap ring is provided with logical Hole.Snap ring 433 is fixedly connected by being evenly distributed on four connection straps 432 of 433 surrounding of snap ring with fixed ring 431, connection strap 432 be a rectangular sheet structure, and snap ring 433 is fixedly connected with a side of connection strap 432, another opposite side of connection strap 432 Side is fixedly connected with fixed ring 431.

Optionally, snap ring includes upper snap ring 4331 and lower snap ring 4332, and upper snap ring 4331 and lower snap ring 4332 are concentric, on The internal diameter of snap ring 4331 is less than the internal diameter of lower snap ring 4332.

Spool 41 includes valve head 411 and valve rod 412, and valve head 411 is located at the surface of the inlet opening 310 of water pipe head 3, valve First 411 can block inlet opening 310.Valve rod 412 is fixedly connected with 411 top surface of valve head, and 412 outer diameter of valve rod is less than valve head 411 Outer diameter, and 412 outer diameter of valve rod is less than the internal diameter of upper snap ring 4331 and lower snap ring 4332.Spring 42, spring 42 are cased on valve rod 412 Internal diameter is less than the outer diameter of valve head 411, and 42 outer diameter of spring is greater than the internal diameter of upper snap ring (4331).In this way, 412 energy of valve rod can be ensured Lower snap ring 4332 and upper snap ring 4331 are enough sequentially passed through, and lower snap ring 4332 can be passed through by covering the spring 42 on valve rod 412, no Upper snap ring 4331 can be passed through, in this way, spring 42 is just limited between 411 top surface of upper snap ring 4331 and valve head.Due to spring 42 elastic force effect, pushes valve head 411 to make its clogging inlet opening 310, when inlet opening 310 has water to pour in from water inlet pipe downwards When heating tube 10, due to hydro-flow thrust, valve head 411 is pushed upwardly out inlet opening 310, thus realize the water inlet of heating tube 10, when When not having water to flow into from water inlet pipe to heating tube 10, valve head 411 is in blocked state, to realize anti-backflow.

In the present embodiment, the structure of check valve 4 is simple, and can effectively prevent the hot water return in heating tube 10.

Embodiment 3

With reference to Fig. 1, on the basis of the above embodiments, the present embodiment the difference is that, 1 top of heater housings with Steam separator box 2 is fixedly connected, and 1 lower part of heater housings connects 3 with water pipe and is fixedly connected.

The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and It is unrestricted.Those skilled in the art understand that can be to it in the spirit and scope defined by the utility model claims Many changes, modifications, and even equivalents are carried out, but all will fall within the protection scope of the utility model.

Claims (10)

1. a kind of instant heating type drinking machine heater, which is characterized in that including heater housings (1), in the heater housings (1) Equipped with heating tube (10), heating tube (10) bottom connects water inlet pipe by water pipe head (3), and the water pipe head (3) is interior Equipped with check valve (4).

2. instant heating type drinking machine heater as described in claim 1, which is characterized in that the check valve (4) includes fixed part (43) it is fixedly connected with spool (41), the fixed part (43) with the water pipe head (3), the fixed part (43) and the valve Core (41) is flexibly connected by spring (42), the inlet opening (310) of water pipe head (3) described in spool (41) face.

3. instant heating type drinking machine heater as claimed in claim 2, which is characterized in that the water pipe head (3) includes first Interconnecting piece (31), second connecting portion (32) and third interconnecting piece (33), the first connecting portion (31) are used for and the water inlet pipe Connection, the first connecting portion (31) is interior to be equipped with the inlet opening (310), and the second connecting portion (32) is for fixing the list To valve (4), the third interconnecting piece (33) is for connecting the heating tube (10).

4. instant heating type drinking machine heater as claimed in claim 3, which is characterized in that the third interconnecting piece (33) with it is described Sealing ring (11) are equipped between heating tube (10).

5. instant heating type drinking machine heater as claimed in claim 3, which is characterized in that the fixed part (43) includes fixed ring (431), connection strap (432) and snap ring (433), the fixed ring (431) pass through the connection strap (432) and the snap ring (433) it is fixedly connected.

6. instant heating type drinking machine heater as claimed in claim 5, which is characterized in that the snap ring (433) includes upper snap ring (4331) and lower snap ring (4332), the internal diameter of the upper snap ring (4331) are less than the internal diameter of the lower snap ring (4332).

7. instant heating type drinking machine heater as claimed in claim 6, which is characterized in that the spool (41) includes valve head (411) and valve rod (412), valve rod (412) outer diameter are less than the valve head (411) outer diameter.

8. instant heating type drinking machine heater as claimed in claim 7, which is characterized in that be cased on the valve rod (412) described Spring (42), valve rod (412) outer diameter are less than the internal diameter of the upper snap ring (4331) and the lower snap ring (4332), the bullet Spring (42) outer diameter is greater than the upper snap ring (4331) internal diameter, and spring (42) internal diameter is less than the valve head (411) outer diameter.

9. instant heating type drinking machine heater as claimed in claim 8, which is characterized in that valve head (411) lower end is one Rotary table.

10. the instant heating type drinking machine heater as described in claim 1-9 is any, which is characterized in that the heater housings (1) Top is fixedly connected with steam separator box (2), and heater housings (1) lower part is fixedly connected with the water pipe head (3), institute Stating heating tube (10) is thick-film heating pipe.