High-pressure-resistant quick connector suitable for household appliances

Abstract

The high-pressure-resistant quick connector suitable for the household appliances comprises a connector body, a sealing assembly and a clamping jaw piece are fixedly arranged in the connecting end of the connector body, the sealing assembly is used for fastening and sealing a pipeline, the outlet end of the sealing assembly is provided with a blocking part abutting against the end of the pipeline, and the clamping jaw piece is used for clamping the pipeline. The clamping jaw piece is arranged close to the other end of the sealing assembly. A fastening assembly is arranged at the connecting end, extends into the connector body and abuts against the end face of the sealing assembly, and the fastening assembly is in threaded connection with the connecting end. An unlocking piston is arranged in the fastening assembly in a penetrating mode, one end of the unlocking piston extends into the connector body and abuts against a fixing claw of the clamping claw piece, the other end of the unlocking piston extends out of the fastening assembly, in the using process, only a pipeline needs to be inserted from the unlocking piston, operation is very easy, and working efficiency is greatly improved. Besides, the connector body and the fastening assembly are connected in a threaded mode, and selected manufacturing materials are high-pressure-resistant and high-strength, so that higher pressure can be borne under mutual meshing of the threads, and the risk of falling off is thoroughly solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of connecting valve, specifically a kind of high-pressure-resistant quick connector suitable for household appliance. BACKGROUND

[0002] Household cooking appliances need to use high-pressure steam, the most common is coffee machine, which forms milk foam needs to use high-pressure steam, the pipeline in coffee machine is relatively simple, but it is very difficult to install due to narrow space, the sealing connector in coffee machine is shown in the product in the following website "https: / / detail.1688.com / offer / 829250155416.html", specifically comprising body, plug buckle and sealing ring, and there is a metal pipe sleeve at the end of the pipeline, in the assembly process, the metal pipe sleeve is first riveted at the end of the pipeline, then the sealing ring is sleeved on the end of the pipeline, then one end with the sealing ring is inserted into the body, and finally the plug buckle is fixed;The process is very tedious, and the other end of the connector needs to be pre-installed on the coffee machine during installation, and the installation space in the coffee machine is very small, which increases the difficulty of assembly and reduces the installation efficiency.

[0003] In addition, coffee machine has a long history, and the common structure has been standardized, but in such a long time, the steam pipe connection in coffee machine basically stays in the most original installation mode, and no quick connector appears, the main reason is that the quick connector is composed of many parts, so the shell cannot be integrally formed, so under the pressure of high-pressure steam, the shell parts are easy to separate, leading to accidents, and there is also the risk of leakage under high pressure, of course, the shell can adopt other structures and add a layer of fixation, but it will make the production and assembly process complex and the cost rises, and it is known that the sales price of a quick connector will not exceed 3 yuan, and the cost rise leads to product price rise, which is unacceptable to customers. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a high-pressure-resistant quick connector suitable for household appliance to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme.

[0006] A high-pressure-resistant quick connector suitable for household appliance, comprising a connector body, a sealing assembly and a jaw piece are fixed in the connecting end of the connector body, the sealing assembly is used for fastening and sealing the pipeline, and the outlet end of the sealing assembly is provided with a blocking part that abuts against the end of the pipeline, and the other end of the jaw piece is arranged close to the sealing assembly.

[0007] The connecting end is provided with a fastening assembly which extends into the joint body and abuts against the end face of the sealing assembly, and the fastening assembly is threadedly connected with the connecting end.

[0008] An unlocking piston is arranged in the fastening assembly, one end of the unlocking piston extends into the joint body and abuts against the fixed claw of the claw piece, and the other end extends out of the fastening assembly.

[0009] Further, an inner wall of the fastening assembly is provided with a step one, an outer wall of the unlocking piston is provided with a step two, and the step one and the step two can abut against each other.

[0010] Further, the fastening assembly comprises an outer fixing piece, an inner wall of the outer fixing piece is threadedly connected with an outer wall of the connecting end, an inner fixing piece is arranged in the outer fixing piece, an end face of one end of the inner fixing piece abuts against an inner end face of the outer fixing piece and transversely abuts against an end face of the connecting end, and the other end of the inner fixing piece extends into the joint body and abuts against the sealing assembly.

[0011] Further, the blocking part is an independent silica gel sealing piece one.

[0012] Further, the sealing assembly is provided with at least one inwardly extending fastening annular flange, and the fastening annular flange is used for narrowing the diameter of the pipeline.

[0013] Further, the fastening annular flange is provided with a conical surface close to the side of the claw piece one.

[0014] Further, the sealing assembly comprises a sealing piece two, a sealing piece three and a sealing piece four which abut against each other in sequence, the fastening annular flange is arranged in the sealing piece three, a hole diameter of the fastening annular flange is smaller than an outlet hole diameter of the sealing piece four and an outlet hole diameter of the sealing piece two, the outlet hole diameter of the sealing piece two is smaller than or equal to the outlet hole diameter of the sealing piece four, and the above hole diameters are all smaller than the diameter of the pipeline.

[0015] Further, an outer periphery of the sealing piece four is provided with an annular boss, an inner wall of the connecting end is provided with a step three, one side of the boss abuts against the step three, and the other side abuts against an end part of the fastening piece.

[0016] Further, one end of the sealing piece three is clamped with one end of the sealing piece four.

[0017] Further, a clamping spring is arranged between the unlocking piston and the joint body.

[0018] The utility model discloses the beneficial effect:

[0019] In use, only need to insert the pipe from the unlocking piston, operation is very simple, even in very small space can be easily operated, all sealed parts are transferred to the joint, relative to the traditional installation mode reduces the operation steps of the pipe, greatly improves the work and maintenance efficiency;

[0020] In addition, the connection mode between the joint body and the fastening assembly is screw thread, and the selected manufacturing material is high-pressure-resistant and high-strength, so that the screw threads can withstand greater pressure under mutual engagement, and the risk of falling off is completely solved.

[0021] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model discloses a three-dimensional structure diagram.

[0023] Figure 2 The utility model discloses a part section structure diagram.

[0024] Figure 3 The utility model discloses a three-dimensional section view.

[0025] Figure 4 The utility model discloses an explosion view.

[0026] Reference signs: 1-joint body, 11-connection end, 12-step three, 21-block part, 22-sealing part two, 23-sealing part three, 24-sealing part four, 25-fastening ring flange, 26-ring boss, 3-clamping jaw part, 31-fixed claw, 4-unlocking piston, 41-step two, 5-fastening assembly, 51-outer fixed part, 52-inner fixed part, 53-step one, 6-clasp spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0028] Please refer to Figures 1-4 ;

[0029] The utility model provides a joint can realize quick installation, and can take into account the simple manufacture, high pressure resistance and low cost effect, the quick joint of utility model discloses is applicable to the electric appliance of family, of course, for some restaurant equipment, for example, professional coffee machine etc. are all applicable, in other words, the quick joint of utility model discloses aims at replacing traditional installation structure, therefore the equipment using traditional structure installation can all be replaced by quick joint, specific including joint body 1, the connecting end 11 inside of joint body 1 is equipped with the space for installing each component, is fixed with sealing assembly and dog element 3 in the space, sealing assembly is used for fastening and sealing to pipeline, and the outlet end of sealing assembly is equipped with the blocking portion 21 that is in contact with the end of pipeline, all be equipped with the through -hole that pipeline is worn in above -mentioned component, and the other end of dog element 3 is close to sealing assembly setting;

[0030] When assembling, sealing assembly, dog element 3 and unlocking piston 4 are loaded into it in turn, finally again the way of cylinder thread connection of fastening assembly 5 is connected with connecting end 11, and is in contact with sealing assembly end face, sealing assembly is in contact with blocking portion 21 to make the gap between components, the overall structure is very compact, in addition, after fastening assembly 5 and connecting end 11 are fixed by the connection mode of thread, it is impossible to loosen by pure human hand, need help workpiece, therefore do not need to worry about the risk of loosening, completely eliminates the potential safety hazard.

[0031] Still, the blocking portion 21 in the embodiment can be integrally formed with the sealing assembly, or can be a separate component. Preferably, the blocking portion 21 is a separate silica gel sealing piece one, the outer periphery of which is in contact with the inner wall of the connecting end 11 and one end of the sealing assembly, and the hole diameter of the silica gel sealing piece one is smaller than the hole diameter of the contact end of the sealing assembly. The outer side of the sealing assembly is also in contact with the side of the connecting end 11. The unlocking piston 4 is movable in the joint body 1, the end thereof is in contact with the fixed claw 31 of the dog element 3, and the other end extends out of the joint body 1. The unlocking piston 4 is unable to be separated from the joint body 1, and the fixed claw 31 is elastic. Therefore, after pressing the unlocking piston 4 each time, the fixed claw 31 will be elastically deformed, and after the pressure is removed, the fixed claw 31 will reset and eject the unlocking piston 4;

[0032] When in use, the pipe is inserted from the unlocking piston 4, sequentially through the claw piece 3 and the sealing assembly, and finally the end of the pipe is in complete contact with the end face of the silica gel sealing piece one, and the outlet of the pipe corresponds to the through hole of the silica gel sealing piece one; in the process of inserting the pipe, the fixed claw 31 is deformed and inclined, and is in contact with the outer wall of the pipe, at this time, the first level of fixation makes the pipe only advance and cannot retreat; then, as the pipe enters the sealing assembly, the aperture of the sealing assembly is slightly smaller than the outer diameter of the pipe, and the sealing assembly wraps the outer wall of the pipe, assuming that the sealing assembly is silica gel, the pipe is difficult to be pulled out in reverse by the friction force between the outer wall of the pipe and the inner wall of the sealing assembly, which is the second level of fixation, and can also achieve the sealing effect to prevent liquid from seeping out between the outer wall of the pipe and the inner wall of the sealing assembly, in addition, as the end face of the silica gel sealing piece one is also in contact with the end of the sealing assembly, liquid can also be prevented from seeping out between the outer wall of the sealing assembly and the inner wall of the connecting end 11, and through the above design, the risk of leakage can be ensured under high pressure.

[0033] In addition, during use, only the pipe needs to be inserted from the unlocking piston 4, and the operation is very simple, even in a very small space, the operation can be easily operated, all sealed parts are transferred to the joint, and the operation steps of the pipe are reduced compared with the traditional installation mode, and the working efficiency is greatly improved.

[0034] When the pipe needs to be taken out of the joint, only the unlocking piston 4 needs to be pressed to separate the fixed claw 31 from the outer wall of the pipe, and then the pipe can be pulled out with light force.

[0035] In addition, the product needs to be approved by the customer after being made, and the previously applied file "202422217026.3, a coffee machine pipe conveying joint sealing structure" is connected between the joint body 1 and the fastening assembly 5 in a traditional way through buckling. Although the buckling mode can achieve good fastening effect, under high-pressure steam, the risk of deformation, unhooking and explosion may occur, therefore, in the connection mode of the thread in the application, the selected manufacturing material is also high-pressure-resistant and high-strength, so that the mutual engagement of the threads can withstand greater pressure, and the risk of falling off is completely solved.

[0036] Further, the sealing structure in the utility model can be applied to other different-shaped joints of coffee machines or other devices, and in addition, the sealing structure is not limited to being arranged in one connecting end 11, but can be arranged in multiple connecting ends 11 of the joint according to actual needs.

[0037] In one of the embodiments of the utility model, the inner wall of fastening assembly 5 is provided with step one 53, the outer wall of unlocking piston 4 is provided with step two 41, step one 53 and step two 41 can abut to limit unlocking piston 4 from being pulled out, preferably, step one 53 and step two 41 are both annular steps.

[0038] The utility model discloses fastening assembly 5 can be integrally injection molded structure, but after testing slightly poor strength, therefore adopt split type structure, specifically including outer fixed part 51, the inner wall of outer fixed part 51 is connected with the outer wall of connecting end 11 by screw thread, the inner fixed part 52 is located in outer fixed part 51, the end face of one end of inner fixed part 52 abuts with the inner end face of outer fixed part 51, and abuts with the end face of connecting end 11 horizontally, the other end of inner fixed part 52 is inserted into joint body 1 and abuts with sealing assembly, the strength of single fixed part is higher, and the compact structure of mutual abutment is more.

[0039] In addition, the traditional mode of sealing assembly is provided with annular step on its outer periphery, is provided with clamping groove and is fixed with the clamping of connecting end 11 inner wall, this mode is used for the fixation of sealing ring more, but this mode is not only fixed difficultly, but also is easy to make it shift and fall off when the pipeline is pulled out, therefore the fastener in the embodiment can realize the fixation of unlocking piston 4 and sealing assembly, and achieve two goals at one stroke.

[0040] More specifically, first, silicone sealing piece one and sealing assembly are put into connecting end 11 in sequence, make one end of sealing assembly abut with the end face of silicone sealing piece one, then one end of fastening assembly 5 is inserted into connecting end 11 and abuts with the other end of sealing assembly, at this time, fastening assembly 5 is connected with connecting end 11 by screw thread.

[0041] In addition, fastening assembly 5 is provided with passageway for unlocking piston 4 to pass in, step one 53 is located in the inner wall of passageway, step two 41 is provided on the outer periphery of unlocking piston 4, step one 53 and step two 41 limit unlocking piston 4 from being pulled out of fastening assembly 5, one end of unlocking piston 4 abuts with fixed claw 31 in initial state, then step one 53 and step two 41 abut to realize fixation.

[0042] In the embodiment of the utility model about sealing assembly, the passageway for pipeline to pass in is provided in sealing assembly, and at least one inwardly extending fastening annular flange 25 is provided in the passageway, so that the sealing assembly forms the structure of "wide-narrow-wide", the pipeline will be narrowed and then widened when passing through fastening annular flange 25, which not only can play the effect of fastening, but also can play the effect of increasing flow rate.

[0043] Further, the fastening annular flange 25 is provided with a tapered surface close to the side of the clamping claw part 3, which can make the pipeline have a narrowing process and be more easily passed through the fastening annular flange 25.

[0044] Further expansion of the sealing assembly, specifically including the sealing member two 22, the sealing member three 23 and the sealing member four 24 in turn, the fastening annular flange 25 is arranged in the sealing member three 23, the aperture diameter of the fastening annular flange 25 is smaller than the outlet aperture diameter of the sealing member four 24 and the outlet aperture diameter of the sealing member two 22, the outlet aperture diameter of the sealing member two 22 is smaller than or equal to the outlet aperture diameter of the sealing member four 24, and the above-mentioned aperture diameters are all smaller than the pipe diameter, it needs to be explained that the taper should also be arranged at the sealing member two 22 and the sealing member four 24, which can better guide into the pipe, and the sealing assembly is provided with several fastening annular flanges 25 and several tapers and other designs, which are difficult to be integrally formed in the production angle, so the separate forming is more beneficial to the production; preferably, the fastening annular flange 25 in the sealing member three 23 is provided with two rows, which can further fix the pipe and further improve the sealing performance, and multiple sealing can prevent leakage.

[0045] In addition, at least the sealing member three 23 among the sealing member two 22, the sealing member three 23 and the sealing member four 24 is silica gel, which is tightly attached to the sealing member two 22 and the sealing member four 24 on both sides of the sealing member three 23 under the extrusion of the fastener to form a seal.

[0046] In the embodiment, the sealing member four 24 is provided with an annular boss 26, the inner wall of the connecting end 11 is provided with a step three 12, one side of the boss is in abutment with the step three 12, and the other side is in abutment with the end of the fastening assembly 5, and one end of the sealing member three 23 is clamped with one end of the sealing member four 24.

[0047] In the embodiment of the utility model, the clamping spring 6 is arranged between the unlocking piston 4 and the joint body 1, which prevents the unlocking effect caused by accidental touch.

[0048] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any figure reference in the claims should not be regarded as limiting the involved claims.

[0049] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A high-pressure resistant quick-connect connector suitable for household appliances, characterized by: The invention comprises a joint body (1), wherein a sealing assembly and a claw member (3) are fixedly provided in a connection end (11) of the joint body (1), wherein the sealing assembly is used to fasten and seal a pipeline, and an outlet end of the sealing assembly is provided with a blocking portion (21) that contacts the end of the pipeline, and the claw member (3) is provided near the other end of the sealing assembly; A fastening assembly (5) is provided at the connection end (11), the fastening assembly (5) extends into the joint body (1) and contacts the end surface of the sealing assembly, and the fastening assembly (5) is threadedly connected to the connection end (11); An unlocking piston (4) is provided in the fastening assembly (5), one end of the unlocking piston (4) extends into the connector body (1) and contacts the fixed claw (31) of the claw member (3), and the other end extends out of the fastening assembly (5).

2. A high-pressure resistant quick-connect connector suitable for household appliances according to claim 1, characterized in that: The inner wall of the fastening assembly (5) is provided with a step 1 (53), and the outer wall of the unlocking piston (4) is provided with a step 2 (41), and the step 1 (53) and the step 2 (41) can conflict with each other.

3. The high-pressure resistant quick-connect connector suitable for household appliances according to claim 1, characterized in that: The fastening assembly (5) comprises an external fixing member (51), the inner wall of the external fixing member (51) being threadedly connected to the outer wall of the connecting end (11), an internal fixing member (52) being provided inside the external fixing member (51), an end face of one end of the internal fixing member (52) being in contact with the inner end face of the external fixing member (51) and being in contact with the end face of the connecting end (11) in a transverse direction, and the other end of the internal fixing member (52) extending into the joint body (1) and being in contact with the sealing assembly.

4. A high-pressure resistant quick-connect connector suitable for household appliances according to any one of claims 1 to 3, characterized in that: The blocking portion (21) is an independent silicone seal.

5. A high-pressure resistant quick-connect connector suitable for household appliances according to claim 4, characterized in that: At least one inwardly extending fastening annular flange (25) is provided in the sealing assembly, and is used for fastening the annular flange (25) to narrow the diameter of the pipeline.

6. A high-pressure resistant quick-connect connector suitable for household appliances according to claim 5, characterized in that: The fastening annular flange (25) is provided with a conical surface on one side close to the claw member (3).

7. The high-pressure resistant quick-connect connector suitable for household appliances according to claim 5, characterized in that: The sealing assembly includes a second seal (22), a third seal (23) and a fourth seal (24) that are in contact with each other in sequence. The fastening annular flange (25) is arranged in the third seal (23). The aperture of the fastening annular flange (25) is smaller than the outlet aperture of the fourth seal (24) and the outlet aperture of the second seal (22). The outlet aperture of the second seal (22) is smaller than or equal to the outlet aperture of the fourth seal (24). The above apertures are all smaller than the pipe diameter.

8. The high-pressure resistant quick-connect connector suitable for household appliances according to claim 7, characterized in that: The outer periphery of the sealing member 4 (24) is provided with an annular boss (26), and the inner wall of the connecting end (11) is provided with a step 3 (12). One side of the boss contacts the step 3 (12), and the other side contacts the end of the fastener.

9. The high-pressure resistant quick-connect connector suitable for household appliances according to claim 8, characterized in that: One end of the sealing member three (23) is snap-connected with one end of the sealing member four (24).

10. The high-pressure resistant quick-connect connector suitable for household appliances according to claim 1, characterized in that: A retaining spring (6) is provided between the unlocking piston (4) and the joint body (1).

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