CN220287146U - Gas cylinder support and soda water machine - Google Patents

Abstract

The utility model relates to the technical field of soda water equipment, in particular to a gas cylinder support and a soda water machine, wherein the gas cylinder support comprises a fixing part, a pressure reducing valve and a valve needle, wherein a containing groove is formed in the fixing part, and a void-avoiding groove and an abutting area are formed in the inner wall of the containing groove; the pressure reducing valve is rotatably arranged in the accommodating groove; the pressure reducing valve is provided with an air inlet channel which is suitable for sealing and inserting one end of an air outlet of the air cylinder, an air valve needle is arranged in the air inlet channel, a first end of the air valve needle is abutted against the inner wall of the accommodating groove, and a second end of the air valve needle is abutted against an air valve core at one end of the air outlet of the air cylinder when the air cylinder is sealed and inserted; the valve needle is provided with a gas cylinder closing state and a gas cylinder opening state, the gas cylinder closing state can be switched by rotating the pressure reducing valve, the first end of the valve needle is propped against the empty avoidance groove in the gas cylinder closing state, and the first end of the valve needle is propped against the abutting area in the gas cylinder opening state. Through the structure, the problem of abnormal noise caused by air leakage during gas cylinder replacement can be solved, and user experience is further improved.

Description

Gas cylinder support and soda water machine

Technical Field

The utility model relates to the technical field of soda water equipment, in particular to a gas cylinder support and a soda water machine.

Background

When the machine for prefabricating bubble water in the machine is used for replacing a gas cylinder, as the end face of the gas cylinder does not reach sealing, a device for pressing the valve core of the gas cylinder in the gas cylinder seat firstly acts, so that carbon dioxide in the gas cylinder is leaked, waste is caused, and jet sound which is fear to a user is generated.

In the related art, the diameter of the gas injection sealing ring is generally increased, so that the sealing ring contacts the end face of the gas cylinder first to solve the technical problem. However, the mode can lead to excessive pre-pressing amount and further leads to plastic deformation of the sealing ring to fail, and on the other hand, when the user is too little to spin in place, the valve core of the gas cylinder can not be opened.

Disclosure of Invention

The utility model aims to provide a gas cylinder support, which aims to solve the problems of gas leakage and abnormal sound when a gas cylinder is replaced.

To achieve the above object, a gas cylinder bracket according to a first aspect of the present utility model includes:

the fixing part is internally provided with a containing groove, and the inner wall of the containing groove is provided with a void-avoiding groove and an abutting area;

the pressure reducing valve is rotatably arranged in the accommodating groove; the pressure reducing valve is provided with an air inlet channel which is suitable for sealing and inserting one end of an air outlet of the air cylinder, an air valve needle is arranged in the air inlet channel, a first end of the air valve needle is abutted against the inner wall of the accommodating groove, and a second end of the air valve needle is abutted against an air valve core at one end of the air outlet of the air cylinder when the air cylinder is sealed and inserted;

the valve needle is provided with a gas cylinder closing state and a gas cylinder opening state, the gas cylinder closing state can be switched through rotating the pressure reducing valve, the first end of the valve needle is propped against the empty avoidance groove in the gas cylinder closing state, and the first end of the valve needle is propped against the abutting area in the gas cylinder opening state.

The gas cylinder support provided by the utility model can also have the following additional technical characteristics:

in a specific embodiment of the present utility model, the abutting area of the accommodating groove is further provided with a pressing table in a protruding manner, and the first end of the valve needle abuts against the pressing table in the open state of the gas cylinder.

In one specific embodiment of the utility model, the compression table is connected with the empty avoidance groove through a first guide surface; and/or the second end of the valve needle is provided with a second guide surface.

In one specific embodiment of the utility model, the air inlet channel comprises an installation hole and a guide hole which are axially communicated, the guide hole is in sliding sealing connection with the valve needle, a sealing structure is arranged in the installation hole, and the sealing structure is suitable for being sealed and inserted into an air outlet of the air cylinder in the installation hole.

In a specific embodiment of the utility model, an annular groove is formed in the outer peripheral surface of the first end of the valve needle, and the valve needle is in sliding sealing connection with the guide hole through an O-shaped sealing ring correspondingly arranged in the annular groove.

In one specific embodiment of the utility model, the mounting hole comprises a first hole and a second hole which are axially connected to form a step surface, the first hole is communicated with the guide hole, and the second hole is suitable for being inserted into one end of the gas outlet of the gas cylinder; the sealing structure comprises an annular end cover and an air injection sealing ring, the annular end cover is connected in the first hole, and the outer peripheral surface, the step surface and the second hole define an accommodating cavity; the gas injection sealing ring is accommodated in the accommodating cavity and is suitable for being sealed with the end face of one end of the gas outlet of the gas cylinder in an adapting mode.

In one specific embodiment of the utility model, the pressure reducing valve further comprises a rotating part sleeved outside the pressure reducing valve, wherein the rotating part is also provided with an avoidance hole and a communication port which respectively correspond to two ends of the air inlet channel; the first end of the valve needle passes through the avoidance hole to be abutted with the accommodating groove; the periphery of the first end of the valve needle is convexly provided with a back-off, and the back-off is arranged in the avoidance hole and is matched with the periphery of the pressure reducing valve to form a stop.

In one specific embodiment of the utility model, the air inlet device further comprises a guide part connected with the rotating part, the guide part is provided with a guide groove, the guide groove extends to the rotating part and is communicated with the communication port, the guide groove is used for enabling the air cylinder to slide, and one end of the air outlet of the air cylinder can extend into the communication port to be in sealing insertion with the air inlet channel.

In a specific embodiment of the present utility model, the fixing portion includes a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame respectively abut against outer sections of both ends of the rotating portion, and the first mounting frame and the second mounting frame are connected to each other to define the accommodating groove.

In one embodiment of the present utility model, the first mounting frame includes an abutting portion and a connecting portion, the abutting portion abuts against an outer end surface of one end of the rotating portion, the end surface of the connecting portion is arc-shaped, one end of the connecting portion is connected to the periphery of the abutting portion, and the other end of the connecting portion extends along an axial direction of the rotating portion and is fixed with the second mounting frame.

In a specific embodiment of the utility model, an air outlet channel is further arranged in the pressure reducing valve along the axial direction of the pressure reducing valve, and the air outlet channel is communicated with the air inlet channel in a crossing way.

A second aspect of the present utility model provides a soda water machine comprising a soda water tank, a gas cylinder and a gas cylinder support according to any one of the preceding claims, the soda water tank having an inlet aperture, the inlet aperture being in communication with an outlet aperture of the pressure relief valve.

According to the embodiment of the utility model, the empty-avoiding groove is formed in the inner wall of the accommodating groove of the fixing part, the air inlet on the pressure reducing valve is provided with the valve needle which can be abutted against the inner wall of the fixing part, so that when the pressure reducing valve and the fixing part rotate relatively, a movable space is provided for the valve needle by utilizing the height difference between the abutting area of the inner wall of the accommodating groove and the empty-avoiding groove, the abutting action on the valve core of the air cylinder can be stopped to close the valve core in the closing state of the air cylinder, and the abutting action on the valve core of the air cylinder is started to open the valve core in the opening state of the air cylinder, so that the problem of abnormal sound caused by air leakage when the air cylinder is replaced is solved under the condition that the diameter of the air injection sealing ring is not increased, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a related art gas cylinder and a gas cylinder bracket at a connecting position;

FIG. 2 is a schematic cross-sectional view of a cylinder support and cylinder in an open state of the cylinder according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of another view of the cylinder support and the cylinder in the open state of the cylinder according to the embodiment of the present utility model;

FIG. 4 is a schematic view of a portion of the structure of FIG. 3;

fig. 5 is an enlarged view of the portion a of fig. 2;

FIG. 6 is a schematic cross-sectional view of a cylinder support and cylinder in a closed state of the cylinder according to an embodiment of the present utility model;

FIG. 7 is a schematic cross-sectional view of another view of the cylinder support and cylinder in the closed state of the cylinder according to an embodiment of the present utility model;

fig. 8 is an enlarged view of the structure of the portion B in fig. 6.

Reference numerals illustrate:

01-gas cylinder, 02-valve rod, 03-gas injection sealing ring, 04-valve body, 05-valve core, 06-sealing piece, 07-elastomer and 08-valve seat;

a 100-soda water machine;

10-gas cylinder supports, 11-fixing parts, 111-first mounting frames, 1111-abutting parts, 1112-connecting parts, 1113-empty avoidance grooves, 1114-compression tables, 1115-first guide surfaces and 112-second mounting frames; 12-pressure reducing valve, 121-inlet channel, 1211-pilot hole, 1212-mounting hole, 1213-first hole, 1214-second hole, 122-gas channel, 1221-central channel, 1222-first-branch channel, 1223-second-branch channel; 13-valve needle, 131-first end, 1311-annular groove, 1312-second guide surface, 1313-back-off, 132-second end; 14-O-shaped sealing rings; 15-annular end covers, 151-connecting ends and 152-limiting ends; 16-gas injection sealing rings; 17-rotating parts, 171-avoiding holes and 172-communicating ports; 18-a guide part, 181-a guide groove;

20-gas cylinder, 21-valve core.

Detailed Description

Exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

Fig. 1 is a sectional view showing a structure of a connection position of a gas cylinder and a gas cylinder bracket in the related art. As shown in fig. 1, in the related art, a carbon dioxide gas cylinder 01 (hereinafter referred to as a gas cylinder) is mostly provided with a valve core at one end of a gas outlet, the valve core generally includes a valve body 04, a valve core 05, an elastic member 07, a sealing member 06 and a valve seat 08, specifically, the valve body 04 is provided with a top surface opening, a bottom surface opening and a mounting cavity communicating therebetween, and the valve body 04 is hermetically connected to the gas outlet of the gas cylinder 02 through one end of the bottom surface opening, the valve core 05 is provided in the mounting cavity of the valve body 04, and one side of the valve core 05 facing the bottom surface opening of the valve body 04 is elastically connected to the valve seat 08 fixed in the mounting cavity of the valve body through the elastic member 07, and one side facing the top end opening of the valve body 04 is hermetically adapted to the top surface opening of the valve body 04 through the sealing member 06. The gas cylinder 01 is correspondingly installed with a gas cylinder support of the soda water machine through a valve core, and specifically, the gas cylinder support comprises a gas inlet in which a gas injection sealing ring 03 and a valve rod 02 are arranged, when the valve body 04 of the gas cylinder is installed in the gas inlet, the gas injection sealing ring 03 forms sealing with the top surface of the valve body 04, the valve rod 02 abuts against the opening of the top surface of the valve body 04 and then the valve core 05 moves towards one side of the elastic body 07, so that the sealing state between the valve core 05 and the valve body 04 is relieved, and gas in the gas cylinder flows out.

However, in the above-described structure, when the end face of the gas cylinder 01 does not reach the sealed state, the valve rod 02 in the gas inlet is activated first, and gas in the gas cylinder leaks. In the related art, the above-mentioned problems are solved by increasing the diameter of the gas injection seal ring. Specifically, after the diameter of the gas injection sealing ring is increased, the bottle mouth can be contacted and sealed with the gas injection sealing ring firstly in the installation process, and then the bottle mouth is propped against the valve rod along with screwing in, namely, the elastic deformation range of the gas injection sealing ring is increased by increasing the diameter of the gas injection sealing ring in the related technology, so that a sealing state with a longer stroke range is provided for the gas bottle, and the problem of abnormal noise caused by gas leakage is solved. However, the problem that the pre-pressing amount of the gas injection sealing ring is too large (namely, the deformation amount is too large) to cause the plastic deformation of the sealing ring to fail exists in the improvement, meanwhile, the pre-pressing amount is too large to operate with larger force, and once the force applied by a user is too small, the valve core of the gas cylinder cannot be opened when the gas cylinder is not screwed in place.

As shown in fig. 2-8, in order to solve the above-mentioned technical problems, a first aspect of the present utility model provides a gas cylinder bracket 10, which can be applied to the soda 100 and other gas cylinder gas supply devices seeking to solve the problem of gas leakage abnormal sound during gas cylinder installation.

Specifically, the gas cylinder bracket 10 provided by the embodiment of the utility model comprises a fixing part 11, a pressure reducing valve 12 and a valve needle 13.

Wherein, the fixed part 11 is provided with a containing groove, and the inner wall of the containing groove is provided with a void-avoiding groove 1113 and an abutting area. The pressure reducing valve 12 is rotatably installed in the accommodating groove, the pressure reducing valve 12 is provided with an air inlet channel 121 which is suitable for being in sealing insertion with one end of the air outlet of the air cylinder 20, the air inlet channel is internally provided with a valve needle 13, the first end of the valve needle 13 is abutted against the inner wall of the accommodating groove, and the second end of the valve needle 13 is abutted against a valve core 21 at one end of the air outlet of the air cylinder 20 when the air cylinder 20 is in sealing insertion.

The valve needle 13 has a gas cylinder closed state in which the pressure reducing valve is rotatable, and a gas cylinder open state in which the first end of the valve needle 13 abuts against the clearance groove, and in which the first end of the valve needle abuts against the abutment region.

Specifically, the fixing portion 11 is sleeve-shaped, and forms a containing groove with a notch therein, and a certain position of an inner wall of the containing groove is further recessed inwards to form a clearance groove 1113, so that the inner wall of the containing groove is divided into the clearance groove 1113 and an abutting area, and the clearance groove 1113 and the abutting area have a height difference. The bottom surface of the clearance groove 1113 is preferably a curved surface.

The pressure reducing valve 12 has a columnar shape, and the pressure reducing valve 12 is provided with a through air intake passage 121, and preferably, the air intake passage 121 is provided along the radial direction of the pressure reducing valve 12. The pressure reducing valve 12 is disposed in the accommodating groove of the fixing portion 11, and can rotate relatively in the accommodating groove, the rotation range of the pressure reducing valve 12 can be preset according to the installation requirement of the gas cylinder 20, specifically, in this embodiment, the rotation range of the pressure reducing valve 12 can be set to any value between 0 ° and 60 ° such as 10 °,15 °, 30 °, 45 °, 50 °. During rotation of the pressure reducing valve, one end of the intake passage 121 is switched between the alignment clearance groove 1113 and the alignment abutment region.

One end of the air inlet channel 121 corresponding to the inner wall of the accommodating groove is connected with an air valve needle 13 in a sealing way. The first end of the valve needle 13 abuts against the inner wall of the accommodating groove, and the valve needle 13 can axially move in the air intake passage 121 based on the difference in height of the inner wall of the accommodating groove when rotating following the pressure reducing valve 12, and has different states due to the axial movement, specifically, the first end of the valve needle 13 is in a gas cylinder closed state when abutting against the empty avoiding groove 1113, and the first end of the valve needle 13 is in a gas cylinder open state when abutting against the abutting region.

One end of the air inlet passage 121 corresponding to the notch is adapted to be connected to the gas cylinder 20. Because the gas cylinder 20 is fixedly connected with the gas inlet channel 121, the pressure reducing valve 12 can be driven to rotate by rotating the gas cylinder 20; and because the valve core 20 at one end of the air outlet of the air cylinder 20 is propped against the second end of the valve needle 13 after the air cylinder 20 is installed, the first end of the valve needle 13 is always propped against the inner wall of the accommodating groove after the air cylinder is installed, and the valve needle 13 can be acted by the inner wall of the accommodating groove to realize state switching when the pressure reducing valve 12 is rotated.

Specifically, as shown in fig. 6-8, in the closed state of the gas cylinder, the first end of the valve needle 13 is located in the clearance groove 1113, and the second end abuts against the valve core, so that the valve core is in the closed state; as shown in fig. 2-5, in the open state of the gas cylinder, the first end of the valve needle abuts against the abutting area of the accommodating groove, compared with the closed state of the gas cylinder, the valve needle 13 is acted by the inner wall of the accommodating groove to axially move to one side of the valve core, and the stroke of the axial movement is synchronously transmitted to the valve core of the valve core 20 through the second end of the valve needle 13, so that the valve core of the valve core 20 synchronously moves, and the gas cylinder is opened.

Therefore, when the gas cylinder 20 needs to be replaced, the pressure reducing valve 12 is turned to the gas cylinder closing state, so that the second end of the valve needle 13 is located in the empty avoiding groove 1113 and the valve core 21 of the gas cylinder is in the closing state, then the empty gas cylinder 20 is removed and replaced with a new gas cylinder 20, and in the replacement process, the second end of the valve needle 13 is located in the empty avoiding groove 1113 and cannot act on the gas cylinder 20, so that gas leakage in the cylinder replacement process can be avoided. After the gas cylinder 20 is installed, the pressure reducing valve 12 is rotated again to the gas cylinder opening state, so that the second end of the valve needle 13 acts with the accommodating groove to axially move to one side of the valve core and re-act on the valve core 20 of the gas cylinder 20, and then the valve core 20 is opened to stably supply gas.

According to the embodiment of the utility model, the empty-avoiding groove 1113 is formed in the inner wall of the accommodating groove of the fixing part 11, the air inlet channel 121 on the pressure reducing valve 12 is provided with the valve needle 13 which can be abutted against the inner wall of the fixing part 11, and then when the pressure reducing valve 12 and the fixing part 11 rotate relatively, the height difference between the abutting area of the inner wall of the accommodating groove and the empty-avoiding groove 1113 is utilized to provide a movable space for the valve needle 13, so that the action on the valve core 20 of the air cylinder 20 can be stopped to close the valve core 20 when the air cylinder 20 is replaced, and the valve core 20 is started to be acted on the valve core 20 when the air cylinder 20 is reset, so that the problem of abnormal air leakage during replacing the air cylinder 20 is solved under the condition that the diameter of the air injection sealing ring 16 is not increased, and the user experience is improved.

As shown in fig. 5 and 8, in one embodiment, the abutment area of the accommodating groove is further provided with a pressing table 1114 in a protruding manner, and in the open state of the gas cylinder, the first end of the valve needle 13 abuts against the pressing table 1114. Specifically, through setting up the platform 1114 that compresses tightly that protrudes in the holding tank inner wall, improved the difference in height of holding tank inner wall in the rotation scope of relief pressure valve 12 to improved the stroke of valve needle 13, guaranteed the holding tank inner wall to the ejecting effect of valve needle 13, and then guaranteed the gas cylinder 20 installation and reset back valve needle 13 to the ejecting effect of valve core 20, thereby reduced the influence that the gap between relief pressure valve 12 and the fixed part 11 opened gas cylinder 20, guaranteed the unblocked of gas circuit.

As shown in fig. 5 and 8, in one embodiment, the compression table 1114 and the clearance groove 1113 are coupled by a first guide surface 1115. In another embodiment, the second end of the valve needle 13 is provided with a second guide surface 1312. Specifically, the first guiding surface 1115 may be an inclined surface or an arc surface, and the second guiding surface 1312 is a hemispherical surface or a curved surface. By providing the first guide surface 1115 and/or the second guide surface 1312, the valve needle 13 and the clearance groove 1113 or the valve needle 13 and the pressing table 1114 can be prevented from being jammed when the pressure reducing valve 12 rotates, so that the pressure reducing valve 12 can rotate more smoothly.

As shown in fig. 5 and 8, in one embodiment, the air inlet 121 includes a guide hole 1211 and a mounting hole 1212 that are axially connected, the guide hole 1211 is adapted to be slidably and sealingly connected to the valve needle 13, and a sealing structure is provided in the mounting hole 1212 and adapted to be sealingly inserted into the air outlet of the air cylinder 20 in the mounting hole 1212. Specifically, the guide hole 1211 and the mounting hole 1212 are circular holes, and the diameter of the guide hole 1211 is smaller than the diameter of the mounting hole 1212.

The guide hole 1211 and the mounting hole 1212 may be square holes or polygonal holes, as needed.

As shown in fig. 5 and 8, in one embodiment, the outer circumferential surface of the first end of the valve needle 13 is provided with a ring groove 1311, and the ring groove is adapted to seal with the inner wall of the guide hole 1211 by an O-ring 14 correspondingly disposed in the ring groove 1311.

Specifically, in the present embodiment, the diameter of the first end 131 of the valve needle 13 is larger than the diameter of the second end, and the first end and the second end are connected by a slope. By providing the annular groove 1311 at the first end 131 for accommodating the O-ring 14, the sealing connection between the valve needle 13 and the guide hole 1211 is ensured, and the valve needle 13 is prevented from falling off the valve needle due to the vertical sliding of the O-ring. By providing the second end 132 with a smaller diameter than the first end 131, on the one hand, it is easy to adapt to the valve core in the middle of the valve core 20, and on the other hand, it is suitable to reserve a sufficient outflow space for the gas in the gas cylinder 20.

As shown in fig. 5 and 8, in one embodiment, the mounting hole 1212 includes a first hole 1213 and a second hole 1214 that are axially connected to form a stepped surface, the first hole 1213 being in communication with the guide hole 1211, the second hole being adapted for insertion of an outlet end of a gas cylinder; the sealing structure comprises an annular end cover 15 and an air injection sealing ring 16, wherein the annular end cover 15 is connected in the first hole 1213, and the outer peripheral surface, the step surface and the second hole 1214 define a containing cavity; a gas injection seal 16 is provided in the receiving chamber and is adapted to be sealed in mating engagement with the end face of the gas outlet end of the gas cylinder connected in the second bore 1214.

Specifically, the diameter of the first bore 1213 is smaller than the diameter of the second bore 1214. The annular end cap 15 includes an axially connected connection end 151 and a limit end 152, and the connection end 151 of the annular end cap 15 is fixedly connected with the first hole 1213 through an adapted screw structure. The outer peripheral surface of the limiting end 152 of the annular end cover 15 is conical, and the outer peripheral surface, the step surface and the inner wall of the second hole 1214 define a reduced annular accommodating cavity. The gas injection sealing ring 16 adopts an O-shaped sealing ring with the diameter larger than the opening size of the accommodating cavity, so that the gas injection sealing ring 16 can be placed in the accommodating cavity to be clamped by the limiting part of the accommodating cavity and can be in contact sealing with the valve body of the gas cylinder 20 at the opening of the accommodating cavity.

As shown in fig. 4, in one embodiment, the gas cylinder support 10 further includes a rotating portion 17, where the rotating portion 17 is disposed in a sleeve shape with one end open and one end closed; the rotating part 17 is sleeved outside the pressure reducing valve 12, the closed end is propped against one end of the pressure reducing valve 12, and the rotating part 17 is also provided with a avoiding hole 171 and a communicating port 172 which respectively correspond to two ends of the air inlet channel 121; the first end of the valve needle 13 passes through the escape hole 171 to abut against the accommodating groove; the outer periphery of the first end of the valve needle 13 is further provided with a back-off 1313, and the back-off 1313 abuts against the outer peripheral surface of the pressure reducing valve 12.

Specifically, the valve needle 13 is simultaneously arranged through the air inlet channel 121 and the avoiding hole 171 to realize the axial and radial positioning of the pressure reducing valve 12 and the rotating part 17, so that the pressure reducing valve 12 and the rotating part 17 rotate together, and the abrasion of the rotation to the pressure reducing valve 12 is reduced; meanwhile, the valve needle 13 further limits the limit position of the valve needle 13 in the air outlet in the axial direction through the back-off 1313 abutting against the peripheral surface of the pressure reducing valve 12, so that the valve needle 13 is prevented from falling off from the air outlet, and the structural reliability is improved.

As shown in fig. 3-4, in one embodiment, the air inlet device further includes a guiding portion 18, the guiding portion 18 is connected to the rotating portion 17, the guiding portion 18 has a guiding groove 181, the guiding groove 181 extends to the rotating portion 17 and is communicated with the communicating port 172, the guiding groove 181 is used for sliding the air bottle 20, and an air outlet end of the air bottle 20 can extend from the communicating port 172 to be in sealing insertion with the air inlet channel 121.

Because the pressure reducing valve 12 and the rotating part 17 are relatively fixed, and the communicating port 172 is arranged on the rotating part 17 corresponding to the position of the air inlet channel 121 of the pressure reducing valve 12, the guiding part 18 with the guiding groove 181 is arranged on the rotating part 17 to guide the air bottle 20, and the position relationship between the pressure reducing valve 12 and the guiding groove 181 is unchanged, so when the air bottle 20 moves along the guiding groove 181, the guiding groove 181 ensures that the air bottle 20 can move right against the pressure reducing valve 12, and the air bottle 20 is prevented from deviating and shaking relative to the pressure reducing valve 12, so that after the air bottle 20 moves in place in the guiding groove 181, the air bottle can extend out of the communicating port 172 and can be accurately inserted into the pressure reducing valve 12 in a sealing way, and even if other parts around the air bottle 20 block the line of sight, the air outlet on the air bottle 20 and the air inlet 121 on the pressure reducing valve 12 can be ensured to be arranged in an aligned mode.

To better rotate the gas cylinder 20, the guiding part 18 is preferably wrapped at one end of the gas cylinder 20 close to the second hole 1214, and one end of the gas cylinder 20 far from the second hole 1214 is exposed outside the guiding part 18, so that the operation is convenient.

As shown in fig. 4 and 7, in one embodiment, the fixing portion 11 includes a first mounting bracket 111 and a second mounting bracket 112, the first mounting bracket 111 abuts against an outer end surface of the closed end of the rotating portion 17, the second mounting bracket 112 abuts against an outer end surface of the open end of the rotating portion 17, and the first mounting bracket 111 and the second mounting bracket 112 are connected to each other to define a receiving groove.

Since the first mounting frame 111 is abutted against one end of the closed end of the rotating portion 17, the second mounting frame 112 is abutted against one end of the open end of the rotating portion 17, and the first mounting frame 111 and the second mounting frame 112 are connected with each other, a holding force is formed therebetween to clamp the rotating portion 17 inside, thereby restricting axial movement of the rotating portion 17. Since the rotation portion 17 is axially fixed to the relief valve 12 through the relief hole 171 and the valve needle 13, the first mount 111 and the second mount 112 also restrict the axial movement of the relief valve 12 by restricting the axial movement of the rotation portion 17.

As shown in fig. 4 and 7, in one embodiment, the first mounting frame 111 includes an abutment portion 1111 and a connecting portion 1112, the abutment portion 1111 abuts against an outer end surface of the closed end of the rotating portion 17, the connecting portion 1112 is provided in a plate shape with an arc end surface so as to better fit the rotating portion 17 and enclose it therein, one end of the connecting portion is connected to an outer periphery of the abutment portion 1111, and the other end extends in an axial direction of the rotating portion 17 so as to be fixed with the second mounting frame 112. The inner wall of the connecting portion 1112, which is attached to the rotating portion 17, is provided with a clearance groove 1113 and a pressing table 1114.

As shown in fig. 7, in one embodiment, the first mounting frame 111 and the second mounting frame 112 are provided with mounting protrusions, and the mounting protrusions are provided with mounting holes 1212 fixed to the housing of the soda machine 100. For example, the abutting portion 1111 is provided with a mounting projection provided with a mounting hole 1212 fixed to the housing of the soda water machine 100; the mounting projection is preferably located at the periphery of the abutment 1111 and is provided to protrude from the cross section of the abutment 1111 in the axial direction of the rotating portion 17. The outer surface of the second mounting frame 112 is also provided with a mounting protrusion, and the mounting protrusion is provided with a mounting hole 1212 fixed with the casing of the soda 100, and the mounting protrusion on the second mounting frame 112 is preferably located on the peripheral surface of the second mounting frame 112. In this embodiment, both ends of the cylinder holder 10 are fixed to the housing of the soda 100, preferably by screws, so as to prevent shaking of the cylinder holder 10.

As shown in fig. 4, in one embodiment, in the axial direction, the relief valve 12 is further provided with an end-sealed air outlet channel 122, and the air outlet channel 122 is in cross communication with the air outlet.

Specifically, the air outlet channel 122 includes a bypass channel 1222, a bypass channel 1223, and a central channel 1221, wherein the central channel 1221 communicates with the air outlet of the pressure reducing valve 12, and extends from the air outlet to a middle area along the central axis of the pressure reducing valve 12; a bypass passage 1222 starting from an end surface at an end remote from the air outlet and extending parallel to the central axis of the relief valve 12; the two-way passage 1223 extends in the radial direction of the relief valve 12 to communicate a way with the central passage 1221. In use, the ends of the first and second bypass passages 1222, 1223 are sealed by sealing bolts.

The bypass passage 1222 intersects the intake passage 121 vertically, specifically, the middle portion of the bypass passage 1222 intersects the guide hole 1211, one end of the valve needle 13 at the intersection abuts against the valve core 20 of the gas cylinder 20, and the other end at the intersection is sealed with the guide hole 1211 by the O-ring 14.

The embodiment of the utility model also provides a soda water machine 100, the soda water machine 100 comprises a soda water tank and a gas cylinder 20, the soda water tank is provided with a water inlet hole, a gas inlet hole and a water outlet hole, the gas cylinder 20 is provided with a gas outlet, wherein the gas outlet of the gas cylinder 20 is connected to a gas inlet 121 of a pressure reducing valve 12 in a gas cylinder bracket 10 and is communicated with the gas inlet hole of the soda water tank through a gas channel 122 in the pressure reducing valve 12. Specifically, the air inlet hole of the soda water tank is communicated with the purified water source, water flowing into the water inlet hole from the purified water source is usually cold water, the air inlet hole is connected with the air outlet of the air bottle 20 through the air channel 122 of the pressure reducing valve 12, carbon dioxide gas in the air bottle 20 is filled into the soda water tank and is mixed with water in the soda water tank to prepare soda water, and the prepared soda water flows out from the water outlet for drinking.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (12)

1. A gas cylinder bracket, comprising:

the fixing part is internally provided with a containing groove, and the inner wall of the containing groove is provided with a void-avoiding groove and an abutting area;

the pressure reducing valve is rotatably arranged in the accommodating groove; the pressure reducing valve is provided with an air inlet channel which is suitable for sealing and inserting one end of an air outlet of the air cylinder, an air valve needle is arranged in the air inlet channel, a first end of the air valve needle is abutted against the inner wall of the accommodating groove, and a second end of the air valve needle is abutted against an air valve core at one end of the air outlet of the air cylinder when the air cylinder is sealed and inserted;

the valve needle is provided with a gas cylinder closing state and a gas cylinder opening state, the gas cylinder closing state can be switched through rotating the pressure reducing valve, the first end of the valve needle is propped against the empty avoidance groove in the gas cylinder closing state, and the first end of the valve needle is propped against the abutting area in the gas cylinder opening state.

2. The gas cylinder holder according to claim 1, wherein the abutment area of the receiving groove is further provided with a pressing table, and the first end of the valve needle abuts against the pressing table in the gas cylinder open state.

3. The gas cylinder bracket according to claim 2, wherein the compression table and the void-avoidance groove are connected by a first guide surface; and/or the second end of the valve needle is provided with a second guide surface.

4. The gas cylinder bracket according to claim 1, wherein the gas inlet channel comprises an axially-communicated mounting hole and a guide hole, the guide hole is in sliding and sealing connection with the valve needle, a sealing structure is arranged in the mounting hole, and the sealing structure is suitable for being sealed and inserted into a gas outlet of the gas cylinder in the mounting hole.

5. The cylinder holder according to claim 4, wherein an annular groove is provided on an outer circumferential surface of the first end of the valve pin, and the valve pin is slidably and sealingly connected to the guide hole through an O-ring seal correspondingly provided in the annular groove.

6. The gas cylinder bracket according to claim 4, wherein the mounting hole includes a first hole and a second hole axially connected to form a stepped surface, the first hole being in communication with the guide hole, the second hole being adapted to be inserted into an outlet end of the gas cylinder; the sealing structure comprises an annular end cover and an air injection sealing ring, the annular end cover is connected in the first hole, and the outer peripheral surface, the step surface and the second hole define an accommodating cavity; the gas injection sealing ring is accommodated in the accommodating cavity and is suitable for being sealed with the end face of one end of the gas outlet of the gas cylinder in an adapting mode.

7. The gas cylinder bracket according to claim 1, further comprising a rotating part sleeved outside the pressure reducing valve, wherein the rotating part is further provided with an avoidance hole and a communication port which respectively correspond to two ends of the gas inlet channel; the first end of the valve needle passes through the avoidance hole to be abutted with the accommodating groove; the periphery of the first end of the valve needle is convexly provided with a back-off, and the back-off is arranged in the avoidance hole and is matched with the periphery of the pressure reducing valve to form a stop.

8. The gas cylinder bracket according to claim 7, further comprising a guide portion connected to the rotating portion, the guide portion having a guide groove extending to the rotating portion and communicating with the communication port, the guide groove being adapted to allow the gas cylinder to slide, and an outlet end of the gas cylinder being capable of extending from the communication port to be sealingly inserted into the gas inlet passage.

9. The gas cylinder bracket according to claim 7, wherein the fixing portion includes a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket respectively abut against outer sections of both ends of the rotating portion, and the first mounting bracket and the second mounting bracket are connected to each other to define the accommodating groove.

10. The gas cylinder bracket according to claim 9, wherein the first mounting bracket includes an abutting portion abutting on an outer end face of one end of the rotating portion and a connecting portion having an arc-shaped end face, one end of the connecting portion being connected to an outer periphery of the abutting portion, and the other end extending in an axial direction of the rotating portion and being fixed to the second mounting bracket.

11. The gas cylinder holder according to claim 1, wherein an air outlet passage is further provided in the pressure reducing valve in an axial direction of the pressure reducing valve, the air outlet passage being in cross communication with the air inlet passage.

12. A soda machine comprising a soda tank, a gas cylinder and a gas cylinder support according to any one of claims 1 to 11, the soda tank having a gas inlet orifice which communicates with a gas outlet orifice of the pressure relief valve.