Temperature control coupler

Abstract

The utility model relates to a temperature control coupler, and relates to the technical field of temperature control equipment, the temperature control coupler comprises an upper coupling part and a lower coupling part, the upper coupling part comprises an upper shell, a flow guide pipe and a steel ball arranged in the flow guide pipe; a limiting plate and a limiting sleeve are fixedly arranged on the inner walls of the two ends of the flow guide pipe respectively, a flow guide through hole is formed in the limiting plate, and the steel ball can block an opening of the limiting sleeve; the lower coupling part comprises a lower shell and a drainage tube, a lower plugging piece and a spring are arranged in the drainage tube, and the lower plugging piece can plug an opening in the upper side of the drainage tube under extrusion of the spring; the elastic strength of the spring is greater than the dead weight of the steel ball; in the application, during coupling, the upper steel ball and the lower plugging piece abut against each other, and plugging of the flow guide tube and the drainage tube is released, so that the flow guide tube and the drainage tube which are coaxial are communicated; and when coupling is not carried out, the steel ball and the lower plugging piece reset and plug the flow guide pipe and the drainage pipe again, so that the possibility of water seepage is reduced, and the corresponding safety performance is improved.

Description

Technical Field

[0001] This application relates to the technical field of temperature control equipment, and in particular to a temperature control coupler. Background Technology

[0002] As we all know, many households now have automatic water-filling kettles, which are very convenient to use. However, these kettles vary in their water filling method; some pour water from the top (top-filling type), while others draw water from the bottom (bottom-filling type). Each of these methods has its own issues regarding sealing and preventing water leakage.

[0003] The temperature control connector, in particular, is a crucial component in water-boiling appliances. However, the temperature control connectors used in current automatic water-filling electric kettles don't seal well when connecting to the water pipes, sometimes leading to leaks. The leaks are especially severe when the connectors are joined together or separated.

[0004] Furthermore, in some bottom-fill designs, the water injection device is directly open, with the water flow controlled by a pump. Some manufacturers have added a plunger to the water injection device to control the outlet's opening and closing. However, in this design, the plunger's opening and closing and the outlet's opening and closing are not synchronized when the connector is engaged or disengaged, and there is no clear sequence. This leads to serious problems with leakage and residual water, indicating room for improvement. Utility Model Content

[0005] The purpose of this application is to provide a temperature control coupler that solves the problem in the above-mentioned related technologies where the opening and closing of the plunger and the opening and closing of the water outlet are not synchronized and there is no clear sequence, which easily leads to problems of water leakage and water residue.

[0006] The temperature control coupler provided in this application adopts the following technical solution:

[0007] A temperature control coupler includes an upper coupling part and a lower coupling part. The upper coupling part includes an upper housing, a guide tube fixed in the middle of the upper housing, and a steel ball disposed inside the guide tube. A limiting plate and a limiting sleeve are respectively fixed on the inner walls of the two openings of the guide tube. The limiting plate has a guide hole. The steel ball can block the opening of the limiting sleeve. The lower coupling part includes a lower housing and a drain tube fixed in the middle of the lower housing. A lower sealing member and a spring are disposed inside the drain tube. The lower sealing member can block the upper opening of the drain tube under the compression of the spring. The elastic strength of the spring is greater than the weight of the steel ball.

[0008] By adopting the above technical solution, when the upper coupling part and the lower coupling part are coupled to each other, the upper shell and the lower shell are plugged into each other, and the steel ball and the lower sealing part abut against each other, thereby releasing the sealing of the guide pipe and the drainage pipe respectively, so that the coaxial guide pipe and the drainage pipe are connected. When not coupled, the steel ball and the lower sealing part are reset and re-sealed the guide pipe and the drainage pipe, thereby reducing the possibility of water leakage and improving the corresponding safety performance.

[0009] Optionally, a compression spring is also provided inside the guide tube, with both ends of the compression spring abutting against the limiting plate and the steel ball respectively; a limiting block is fixed on the inner side of the limiting plate, the compression spring is sleeved on the outer circumferential surface of the limiting block, and the steel ball abuts against the end of the limiting block during coupling; the elastic strength of the spring is greater than the elastic strength of the compression spring.

[0010] By adopting the above technical solution, the compression spring squeezes the steel ball, so that the steel ball tightly seals the opening of the limiting sleeve when not coupled, further reducing the possibility of water seepage and leakage; when coupled, the spring has enough elastic force to squeeze the steel ball, thereby opening the guide tube; at the same time, when not coupled, the spring in the compressed state uses enough elastic force to squeeze the elastic retaining ring, so that one side of the elastic retaining ring fits tightly with the outer edge of the inner opening of the limiting sleeve, reducing the possibility of water leakage from the contact point when not coupled.

[0011] Optionally, the limiting block has several flow guiding notches on its outer periphery along its length direction.

[0012] By adopting the above technical solution, the guide pipe is in a conductive state during coupling. Due to the setting of the guide notch on the limiting block, the opening size that allows water to flow in the guide pipe is increased, which facilitates the flow of water during the pumping process during coupling.

[0013] Optionally, a plurality of limiting protrusions are fixed on the inner wall of the guide tube along its length direction.

[0014] By adopting the above technical solution, the limiting protrusion limits the compression spring inside the guide tube, reducing the possibility of the compression spring deflecting or misaligning when it is compressed.

[0015] Optionally, the lower sealing component includes a sealing rod, with a spring sleeved on the outer periphery of the sealing rod. Both ends of the sealing rod are coaxially fixed with an abutment portion and a limiting portion. An elastic retaining ring is fixed on the outer periphery of the sealing rod near the abutment portion. A locking sleeve is installed on the inner wall of the opening of the drainage tube away from the guide tube. A limiting retaining ring is fixed on the inner wall of the locking sleeve and sleeved on the outer periphery of the limiting portion. A limiting constriction opening is provided on the inner wall of the opening of the drainage tube facing the guide tube, allowing the abutment portion to pass through. The inner diameter of the limiting constriction opening is smaller than the inner diameter of the elastic retaining ring. Both ends of the spring abut against one side of the limiting retaining ring and the elastic retaining ring, respectively. Under spring compression, the elastic retaining ring abuts against the outer edge of the inner opening of the limiting constriction opening.

[0016] By adopting the above technical solution, after the sealing component is installed, the two ends of the spring are respectively pressed against one side of the limiting ring and the elastic retaining ring; when not coupled, the spring in the compressed state presses against the elastic retaining ring, so that one side of the elastic retaining ring is pressed against the outer edge of the inner opening of the limiting constriction, thereby sealing the drainage tube; when coupled, the sealing rod is pressed by the upper locking component, which in turn drives the spring to be further compressed, so that there is a gap between the elastic retaining ring and the limiting constriction, that is, the drainage tube is in the conductive state.

[0017] Optionally, the cross-sectional dimensions of the elastic retaining ring decrease along the direction away from the limiting constriction.

[0018] By adopting the above technical solution and reasonably designing the shape of the elastic retaining ring, the contact surface between the elastic retaining ring and the limiting and closing opening is larger, reducing the possibility of water leakage from the contact and fitting point when not coupled.

[0019] Optionally, a plurality of trapezoidal blocks are fixed on the outer periphery of the locking sleeve, and a locking groove for inserting the trapezoidal blocks is provided on the inner wall of the drainage tube.

[0020] By adopting the above technical solution, when the locking sleeve is installed, the locking sleeve is inserted into the drainage tube, and the trapezoidal locking block on the locking sleeve is inserted into the corresponding locking slot, thereby realizing the installation and fixation of the locking sleeve, which facilitates the subsequent disassembly and assembly of the locking sleeve.

[0021] Optionally, the outer periphery of the abutment portion is provided with several drainage notches along its own length direction.

[0022] By adopting the above technical solution, the drainage pipe is in a conductive state during coupling. Due to the drainage notch on the contact part, the opening size that allows water to flow in the drainage pipe is increased, which facilitates the flow of water during the pumping process during coupling.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When the upper coupling part and the lower coupling part are coupled to each other, the upper shell and the lower shell are inserted and fitted together, and the steel ball and the lower sealing part abut against each other, thereby releasing the sealing of the guide pipe and the drainage pipe respectively, so that the coaxial guide pipe and the drainage pipe are connected. When not coupled, the steel ball and the lower sealing part are reset and re-sealed the guide pipe and the drainage pipe, thereby reducing the possibility of water leakage and improving the corresponding safety performance. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the upper coupling part and the lower coupling part installed in an embodiment of this application;

[0027] Figure 2 This is a cross-sectional structural diagram illustrating the installation and cooperation of the upper locking member and the lower sealing member in an embodiment of this application;

[0028] Figure 3 This is an exploded structural diagram illustrating the installation distribution of the upper locking components in an embodiment of this application;

[0029] Figure 4 This is a cross-sectional structural diagram illustrating the installation distribution of the upper locking components in an embodiment of this application;

[0030] Figure 5 This is a cross-sectional structural diagram illustrating the installation and distribution of the limiting protrusions in an embodiment of this application;

[0031] Figure 6 This is an exploded structural diagram illustrating the installation distribution of the sealing components in an embodiment of this application;

[0032] Figure 7 This is a cross-sectional structural diagram illustrating the installation distribution of the sealing components in an embodiment of this application;

[0033] Figure 8 This is a cross-sectional structural diagram illustrating the installation and cooperation of the locking sleeve and the drainage tube in an embodiment of this application.

[0034] In the diagram, 1. Upper shell; 11. Limiting cavity; 2. Guide tube; 21. Limiting plate; 211. Guide flow hole; 212. Limiting block; 2121. Guide flow notch; 213. Limiting protrusion; 3. Upper locking component; 31. Steel ball; 32. Compression spring; 4. Lower shell; 5. Drainage tube; 51. Limiting constriction; 52. Locking groove; 6. Lower sealing component; 61. Sealing rod; 611. Abutment part; 6111. Drainage notch; 612. Limiting part; 62. Spring; 63. Elastic retaining ring; 7. Limiting sleeve; 71. Sealing ring; 8. Locking sleeve; 81. Limiting retaining ring; 82. Trapezoidal retaining block. Detailed Implementation

[0035] The present application will be further described in detail below with reference to all the accompanying drawings.

[0036] Example:

[0037] Reference Figure 1 and Figure 2 A temperature control coupler includes an upper coupling part and a lower coupling part. The upper coupling part includes an upper housing 1, a guide tube 2 fixed in the middle of the upper housing 1, and an upper locking member 3 disposed in the guide tube 2. The lower coupling part includes a lower housing 4, a drain tube 5 fixed in the middle of the lower housing 4, and a lower sealing member 6 and a spring 62 disposed in the drain tube 5.

[0038] When the upper coupling part and the lower coupling part are coupled to each other, the upper housing 1 and the lower housing 4 are inserted and engaged, and the upper locking part 3 and the lower sealing part 6 abut against each other, thereby releasing the sealing of the guide tube 2 and the drainage tube 5 respectively; when not coupled, the upper locking part 3 seals the guide tube 2, and the lower sealing part 6 is reset under the pressure of the spring 62 and re-seals the drainage tube, thereby reducing the possibility of water leakage and improving the corresponding safety performance.

[0039] Reference Figure 3 and Figure 4 The upper housing 1 has a limiting cavity 11 for inserting the end of the guide tube 2. After the guide tube 2 is installed into the limiting cavity 11, it is fixed to the upper housing 1 with screws. The inner walls of the two ends of the guide tube 2 are respectively fixed with a limiting plate 21 and a limiting sleeve 7. The limiting plate 21 is integrally formed with the guide tube 2. The outer edge of the limiting sleeve 7 is clamped in the limiting cavity 11 by the inner end of the guide tube 2. These details will not be elaborated here. The limiting plate 21 has four guide holes 211 evenly formed. The inner side of the limiting plate 21 has a limiting block 212 integrally formed.

[0040] The upper locking component 3 includes a steel ball 31 and a compression spring 32. After the upper locking component 3 is installed, the compression spring 32 is sleeved on the outer peripheral surface of the limiting block 212, and the two ends of the compression spring 32 abut against the limiting plate 21 and the steel ball 31 respectively. When not coupled, the compression spring 32 squeezes the steel ball 31, so that the outer peripheral surface of the steel ball 31 abuts against the inner opening edge of the limiting sleeve 7, thereby blocking the drainage pipe 5. When coupled, the steel ball 31 and the compression spring 32 are squeezed by the lower sealing component 6, so that the outer periphery of the steel ball 31 abuts against the end of the limiting block 212.

[0041] Reference Figure 4 and Figure 5 Four limiting protrusions 213 are uniformly fixed on the inner wall of the guide pipe 2 along its own length direction to limit the compression spring 32, reducing the possibility of the compression spring 32 being tilted or misaligned when compressed; four guide notches 2121 are uniformly opened on the outer periphery of the limiting block 212 along its own length direction to facilitate the flow of water during subsequent pumping.

[0042] Reference Figure 6 and Figure 7The lower sealing component 6 includes a sealing rod 61 and a spring 62 sleeved on the sealing rod 61. The two ends of the sealing rod 61 are coaxially fixed with an abutment part 611 and a limiting part 612. A rubber elastic retaining ring 63 is fixedly sleeved on the outer periphery of the sealing rod 61 near the abutment part 611. A locking sleeve 8 is installed on the inner wall of the opening of the drainage tube 5 away from the guide tube 2. A limiting retaining ring 81 is integrally formed on the inner wall of the locking sleeve 8 and sleeved on the outer periphery of the limiting part 612. A limiting constriction 51 is provided on the inner wall of the opening of the drainage tube 5 towards the guide tube 2 for the abutment part 611 to pass through. The inner diameter of the limiting constriction 51 is smaller than the inner diameter of the elastic retaining ring 63.

[0043] After the sealing component 6 is installed, the two ends of the spring 62 abut against one side of the limiting ring 81 and the elastic retaining ring 63, respectively. When not coupled, the spring 62, which is in a compressed state, presses against the elastic retaining ring 63, so that one side of the elastic retaining ring 63 abuts against the outer edge of the inner opening of the limiting constriction 51, thereby sealing the drainage tube 5. When coupled, the sealing rod 61 is pressed by the upper locking component 3, which in turn drives the spring 62 to be further compressed, so that there is a gap between the elastic retaining ring 63 and the limiting constriction 51, that is, the drainage tube 5 is in a conductive state.

[0044] Reference Figure 6 and Figure 7 The elastic strength of spring 62 is greater than that of compression spring 32 (see...). Figure 4 The elastic strength of the elastic retaining ring 63 is as follows: the cross-sectional dimensions of the elastic retaining ring 63 decrease in the direction away from the limiting constriction 51, so as to better seal the inner opening of the limiting constriction 51 and reduce the possibility of water leakage when not coupled; four drainage notches 6111 are provided on the outer periphery of the abutment part 611 along its own length direction to facilitate the flow of water during the pumping process when coupled.

[0045] Several rubber sealing rings 71 are fixed on the inner wall of the limiting sleeve 7. During coupling, the sealing rings 71 are sleeved on the outer periphery of the upper end of the drain pipe 5, and the two fit tightly together, thereby reducing the possibility of leakage during subsequent pumping.

[0046] Reference Figure 8 Two trapezoidal locking blocks 82 are integrally formed on the outer periphery of the locking sleeve 8, and a locking groove 52 is provided on the inner wall of the drainage tube 5 for inserting the trapezoidal locking blocks 82, thereby realizing the installation and fixation of the locking sleeve 8 and facilitating subsequent disassembly and assembly of the locking sleeve 8. In addition, the drainage tube 5 is fixed to the lower housing 4 by means of hooks and buckles, which is a conventional snap-fit ​​method and will not be described in detail here.

[0047] The implementation principle of this application embodiment is as follows:

[0048] When the upper coupling part and the lower coupling part are coupled to each other, the upper housing 1 and the lower housing 4 are inserted and engaged, and the upper locking part 3 and the lower sealing part 6 abut against each other, thereby releasing the sealing of the guide tube 2 and the drainage tube 5 respectively, so that the coaxial guide tube 2 and the drainage tube 5 are connected. When not coupled, the upper locking part 3 and the lower sealing part 6 are reset and re-sealed the guide tube 2 and the drainage tube 5. By setting the upper limit block 212 of the limit plate 21, the compression dimension of the compression spring 32 is limited, reducing the possibility of the compression spring 32 being over-compressed and thus reducing its lifespan.

[0049] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temperature controlled coupler, characterized by, The upper coupling part and the lower coupling part, the upper coupling part includes an upper shell (1), a flow guide pipe (2) fixed in the middle of the upper shell (1), and a steel ball (31) arranged in the flow guide pipe (2); the two ends of the flow guide pipe (2) are respectively provided with a limiting plate (21) and a limiting sleeve (7) fixed on the inner wall of the opening; the limiting plate (21) is provided with a flow guide through hole (211); the steel ball (31) can block the opening of the limiting sleeve (7); The lower coupling part includes a lower shell (4), a drainage pipe (5) fixed in the middle of the lower shell (4), a lower blocking piece (6) and a spring (62) arranged in the drainage pipe (5); the lower blocking piece (6) can block the upper opening of the drainage pipe (5) under the extrusion of the spring (62); the elastic strength of the spring (62) is greater than the weight of the steel ball (31); The flow guide pipe (2) is further provided with a compression spring (32), the two ends of the compression spring (32) are respectively in abutment with the limiting plate (21) and the steel ball (31); the inner side of the limiting plate (21) is fixed with a limiting block (212), the compression spring (32) is sleeved on the outer circumferential surface of the limiting block (212), and the steel ball (31) is in abutment with the end of the limiting block (212) during coupling; the elastic strength of the spring (62) is greater than the elastic strength of the compression spring (32); A plurality of flow guide notches (2121) are formed on the outer periphery of the limiting block (212) along the length direction of the limiting block (212); a plurality of limiting convex strips (213) are fixed on the inner wall of the flow guide pipe (2) along the length direction of the flow guide pipe (2).

2. A temperature dependent coupler according to claim 1, wherein, The lower blocking piece (6) includes a blocking rod (61), the spring (62) is sleeved on the outer periphery of the blocking rod (61), the two ends of the blocking rod (61) are coaxially provided with an abutting portion (611) and a limiting portion (612), and an elastic stop ring (63) is fixed on the outer periphery of the blocking rod (61) close to the abutting portion (611); The opening inner wall of the drainage pipe (5) away from the flow guide pipe (2) is provided with a locking sleeve (8), the inner wall of the locking sleeve (8) is fixed with a limiting snap ring (81) sleeved on the outer periphery of the limiting portion (612), the opening inner wall of the drainage pipe (5) toward the flow guide pipe (2) is provided with a limiting recess (51) for the abutting portion (611) to penetrate, the inner diameter of the limiting recess (51) is smaller than the inner diameter of the elastic stop ring (63), the two ends of the spring (62) are respectively in abutment with the limiting snap ring (81) and one side of the elastic stop ring (63), and the elastic stop ring (63) can be in abutment with the outer edge of the inner side opening of the limiting recess (51) under the extrusion of the spring (62).

3. A temperature controlled coupler as claimed in claim 2, wherein, The cross-sectional dimension of the elastic stop ring (63) decreases in the direction away from the limiting recess (51).

4. A temperature dependent coupler according to claim 2, wherein, The outer periphery of the locking sleeve (8) is fixed with a plurality of trapezoidal clamping blocks (82), and the inner wall of the drainage pipe (5) is provided with locking clamping grooves (52) for the trapezoidal clamping blocks (82) to be inserted.

5. A temperature controlled coupler as claimed in claim 2, wherein, A plurality of drainage notches (6111) are formed on the outer periphery of the abutting portion (611) along the length direction of the abutting portion (611).

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