CN111594684A - Push-free direct insertion type gas quick coupling - Google Patents
Push-free direct insertion type gas quick coupling Download PDFInfo
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- CN111594684A CN111594684A CN202010462201.9A CN202010462201A CN111594684A CN 111594684 A CN111594684 A CN 111594684A CN 202010462201 A CN202010462201 A CN 202010462201A CN 111594684 A CN111594684 A CN 111594684A
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- 230000008878 coupling Effects 0.000 title claims abstract description 39
- 238000010168 coupling process Methods 0.000 title claims abstract description 39
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 39
- 238000003780 insertion Methods 0.000 title claims abstract description 30
- 230000037431 insertion Effects 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 87
- 239000010959 steel Substances 0.000 claims abstract description 87
- 238000007789 sealing Methods 0.000 claims description 22
- 230000004308 accommodation Effects 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 36
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 241000309551 Arthraxon hispidus Species 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 208000004350 Strabismus Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000021168 barbecue Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
- F16L37/46—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with a gate valve or sliding valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/22—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts
- F16L37/23—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts by means of balls
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A push-free direct insertion type gas quick coupling comprises a coupling body and a male coupling, wherein one end of the coupling body is provided with an air inlet coupling, and the other end of the coupling body is connected with a quick coupling matrix; a containing cavity for containing the first elastic piece is arranged in the joint body, one end of the first elastic piece abuts against the bottom of the containing cavity, and the other end of the first elastic piece abuts against the valve; one end of the fast connection parent body is sleeved with the valve sleeve, a second elastic piece is arranged between the valve sleeve and the fast connection parent body, one end of the second elastic piece is abutted against the fast connection parent body, and the other end of the second elastic piece is abutted against the valve sleeve; a through hole is formed in the quick connection matrix, a steel ball is arranged in the through hole, a steel wire check ring is further arranged on the right side of the through hole of the quick connection matrix, a step which is radially inward is arranged on the inner wall of the valve sleeve, and an annular groove is formed in the outer wall of the male connector; when the connector body and the male connector are in a non-insertion state, the side wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball abuts against the outer wall of the valve, and when the connector body and the male connector are in an insertion state, the inner wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball is accommodated in the annular groove.
Description
Technical Field
The application relates to the technical field of connecting and separating devices used between a gas pipeline and a gas appliance, in particular to a push-free direct insertion type gas quick connecting head.
Background
At present, the most used is gas in families, restaurants or outdoor barbecue processes; the gas storage tank and the stove are required to be connected through a pipeline, a connecting joint structure is required in the connecting process, rapid connection and disassembly are convenient to carry out, and meanwhile, a good sealing effect is achieved; the prior art, for example, CN201420351102.3, describes a quick coupling for gas, the structure of which is shown in the accompanying drawings: the connector comprises a connector body 1 ', a connector 2', a locking mechanism for fixing the connector body 1 'and the connector 2' when the connector body 1 'and the connector 2' are butted, wherein an air inlet channel 1.1 'is arranged in the connector body 1, an air outlet channel 2.1' for communicating the air inlet channel 1.1 'is arranged in the connector 2', and an opening and closing mechanism for closing the air inlet channel 1.1 'when the connector body 1' and the connector 2 'are separated is arranged in the air inlet channel 1.1'; a baffle 3 ' is arranged in the air inlet channel 1.1 ', the baffle 3 ' divides the air inlet channel 1.1 into a left chamber 1.1.1 ' and a right chamber 1.1.2 ', a transition hole 3.1 ' penetrating through the baffle 3 ' is arranged on the baffle 3 ', and the left chamber 1.1.1 ' and the right chamber 1.1.2 ' are communicated through the transition hole 3.1 '; the opening and closing mechanism comprises a valve 4 ', a compression spring 5 ' and a spring seat 6 ' which are arranged in a left chamber 1.1.1 ', a round table 4.1 ' is arranged at one end, close to a baffle 3 ', of the valve 4 ', a conical surface 3.1.1 ' matched with the outer side wall of the round table 4.1 ' is arranged on the inner wall of a transition hole 3.1 ', a guide rod 4.2 ' is arranged at the other end of the valve 4 ', the compression spring 5 ' is sleeved outside the guide rod 4.2 ', one end of the compression spring 5 ' abuts against the valve 4 ', the other end of the compression spring 5 ' abuts against the spring seat 6 ', the spring seat 6 ' is fixed on the inner wall of the left chamber 1.1.1 ', and a guide hole ' matched with the guide rod 4.2 ' in a sliding manner is arranged on the spring seat 6 '; the connector 2 'is in sliding fit with the right cavity 1.1.2', and one end of the connector 2 'extending into the right cavity 1.1.2' is provided with a top block 2.2 'which abuts against the circular truncated cone 4.1' and is used for driving the valve 4 'to move towards the direction deviating from the transition hole 3.1'.
Therefore, when the joint body 1 ' and the joint head 2 ' are butted, one hand is needed to push the joint sleeve 7 ' to a proper position backwards to enable the steel ball to be in a free state, the other hand holds the joint head 2 ' and inserts the joint body 1 ', the steel ball enters the clamping groove of the joint head 2 ', and then the joint sleeve 7 ' is loosened to clamp the steel ball, so that the joint body 1 ' and the joint head 2 ' are butted; therefore, the connector in the prior art is inconvenient to operate, two hands are required to be matched with each other simultaneously to complete connection, the required operation space is large, and inconvenience is caused.
Disclosure of Invention
This application is not enough to prior art's the aforesaid, provides one kind and practices thrift operating space, and the connection can be realized to the one hand, operates more simple and convenient exempts from to push away formula gas quick coupling head that cut straightly.
In order to solve the technical problem, the technical scheme adopted by the application is as follows: a push-free direct insertion type gas quick coupling comprises a coupling body and a male coupling, wherein an air inlet channel is arranged on the coupling body, a gas circulation channel is arranged on the male coupling, and when the coupling body and the male coupling are connected in an inserting mode, the air inlet channel is communicated with the gas circulation channel;
one end of the joint body is provided with an air inlet joint for communicating with an air source, and the other end of the joint body is connected with the quick-connection parent body; the joint body is internally provided with a containing cavity for containing a first elastic piece, one end of the first elastic piece abuts against the bottom of the containing cavity, the other end of the first elastic piece abuts against a valve, and the valve is sleeved in an axial cavity of the quick-connection parent body in a sliding mode to open and close the air inlet channel; the outer wall of one end, far away from the joint body, of the quick-connection parent body is axially sleeved with a valve sleeve, a second elastic piece is arranged between the valve sleeve and the quick-connection parent body, one end of the second elastic piece abuts against the quick-connection parent body, and the other end of the second elastic piece abuts against the valve sleeve so as to tightly push the valve sleeve;
the quick-connection female body is also provided with a through hole for accommodating a steel ball, the steel ball is arranged in the through hole, the diameter of the steel ball is larger than the depth of the through hole, the right side of the through hole of the quick-connection female body is also provided with a steel wire retainer ring for limiting the valve sleeve or the steel ball to be separated, the inner wall of the valve sleeve is provided with a step which is inward in the radial direction, and the outer wall of the male connector is provided with an annular groove; when the connector body and the male connector are in a non-insertion state, the side wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball abuts against the outer wall of the valve, and when the connector body and the male connector are in an insertion state, the inner wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball is accommodated in the annular groove.
By adopting the specific structure, when the connector body and the male connector are not in plug connection, the first elastic piece is in a relaxation state at the moment, the valve is tightly propped against the inner wall of the quick-connection parent body, and the connector body is provided with the air inlet channel which is in a closed state and cannot convey air out; when the male connector is inserted into the connector body, the valve is inevitably pushed to be compressed towards the connector body in the gradual entering process of the connector body, the first elastic piece is gradually in a compressed state in the process, the valve is separated from the inner wall of the quick-connection parent body, a gap is formed between the valve and the quick-connection parent body at the moment, and gas enters a gas circulation channel between the valve and the male connector through the gap to realize the communication and the conveying of the gas; in the structure of the quick-connection female connector, the valve is creatively designed to realize the sliding in the inner wall of the quick-connection female body in the mutual contact process of the male connector in the plugging process, the valve sleeve does not need to be pushed to plug the male connector, but the male connector can be directly plugged, so that the mutual plugging of the connector body and the male connector can be realized by one hand; when the valve sleeve needs to be disassembled, the valve sleeve and the step of the valve sleeve are slightly pushed by only one hand to move towards the direction of the joint body, the steel ball is given an exit space, the steel ball is separated from the annular groove of the male joint, and meanwhile, the first elastic piece pushes the valve and the valve to push the male joint to be separated. Therefore, the coupling head can be realized by one hand regardless of plugging or disassembling, is convenient and simple to operate, does not limit the operation space, and is simple and rapid to operate.
Preferably, a first sealing ring is arranged on the outer wall of the valve close to the end abutting against the first elastic piece, and when the valve abuts against the inner wall of the quick connection parent body, gas is closed; adopt the effect that can better realization was opened and was closed the gas to can effectively prevent gas leakage.
Preferably, a second sealing ring is arranged on the outer wall of the valve, which is attached to the inner wall of the quick connection matrix; the arrangement of the structure can prevent gas from leaking between the valve and the quick connection parent body.
Preferably, a third sealing ring is arranged on the inner wall of the valve, which is in mutual contact with the male connector; the setting of this structure can effectively realize the sealed of valve and male joint mutual contact's position, prevents that gas from revealing between the gap of above-mentioned contact.
Preferably, the valve is provided with a plurality of vent holes in the radial direction, the vent holes are positioned on the right side of the first sealing ring and are close to the first sealing ring, so that when the air inlet channel is closed, the vent holes are attached to the inner wall of the quick connection parent body to realize closing, and when the air inlet channel is opened, the vent holes are separated from the inner wall of the quick connection parent body to realize opening; adopt this structure can make opening and closing effective control of gas, prevent to reveal or open unsmoothly.
Preferably, the step is provided with a first contact surface and a second contact surface, the first contact surface extends along the axial direction, the second contact surface is obliquely arranged and is in transitional connection with the inner wall of the end, far away from the second elastic piece, of the valve sleeve, and an accommodating space for accommodating the part, protruding out of the through hole, of the steel ball is formed; by adopting the structure, when the male connector is not inserted, the steel ball moves towards the radial outward direction under the abutting action of the valve end (the first elastic part exerts elastic force on the valve to push the valve), the steel ball can be positioned in the through hole and the accommodating space, one axial end of the steel ball is abutted by the steel wire retainer ring, the other axial end of the steel ball is abutted by the step and the inner wall of the through hole, and the second elastic part is positioned in the compressed pile body. At this time, the male connector can be directly inserted into the connector body without obstacles and without pushing the valve sleeve first.
Preferably, the number of the steel balls is three, and the steel balls are uniformly distributed along the circumferential direction of the quick connection matrix; adopt this structure can be fine realization to the locking of male joint, and the atress is balanced, can not take place to squint, and the guarantee leakproofness is better.
Preferably, the male connector comprises a first straight part, a second inclined part and a main body part which are connected in sequence, and the annular groove is positioned on the main body part and is adjacent to the second inclined part; the inner wall of the valve is matched with the first straight part and the second inclined part, so that the outer side wall of the male connector is attached to the inner side wall of the valve after the connector body is spliced with the male connector; by adopting the structure, the sealing between the contact surfaces of the valve and the male connector can be effectively realized, and only the fuel gas flows from the gas circulation channel.
Preferably, the main body part is provided with a stopping protrusion for limiting the insertion depth of the male connector, and the structure can effectively realize correct insertion depth and prevent excessive insertion.
Preferably, the diameter of the steel ball is equal to the depth of the through hole plus the distance between the outer wall of the quick connection parent body and the near end of the male headrest and the inner wall of the section of the valve sleeve, or the diameter of the steel ball is equal to the depth of the through hole plus the depth of the annular groove; by adopting the structure, the mutual relation and good matching of all parts in a plugging or non-plugging state can be ensured.
Drawings
FIG. 1 is a schematic view of a prior art coupling head.
Fig. 2 is a schematic structural diagram of the plug connection state of the connector body and the male connector in the connector of the present application (connection is completed).
Fig. 3 is a schematic structural view of the connector according to the present application in a state where the connector body is disengaged from the male connector.
Fig. 4 is a schematic structural diagram of the plug connection state of the connector body and the male connector in the connector of the present application (connection process).
Detailed Description
The drawings and the following description depict specific embodiments of the application to teach those skilled in the art how to make and use the best mode of the application. For the purpose of teaching inventive principles, some conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.
As shown in fig. 2-4, the push-free direct insertion type gas quick coupling comprises a coupling body 1 and a male coupling 12, wherein the coupling body is provided with an air inlet channel 1.1, the male coupling is provided with an air circulation channel 12.1, and the air inlet channel and the air circulation channel are communicated with each other when the coupling body and the male coupling are connected in an inserted manner;
one end of the joint body is provided with an air inlet joint 1.2 which is used for being communicated with an air source, the surface of the air inlet joint is concave-convex, so that the air inlet joint is more tightly connected with a pipeline, and the other end of the joint body is connected with a quick-connection parent body 3; the joint body is internally provided with a containing cavity 2.1 for containing a first elastic piece 2, one end of the first elastic piece is abutted against the bottom of the containing cavity, the other end of the first elastic piece is abutted against a valve 4, and the valve is sleeved in an axial cavity of the quick-connection parent body in a sliding mode to open and close an air inlet channel; a valve sleeve 11 is axially sleeved on the outer wall of one end, far away from the joint body 1, of the quick-connection parent body 3, a second elastic piece 8 is arranged between the valve sleeve and the quick-connection parent body, one end of the second elastic piece abuts against the quick-connection parent body 3, and the other end of the second elastic piece abuts against the valve sleeve 11 to achieve jacking of the valve sleeve;
the quick-connection matrix 3 is also provided with a through hole 3.1 for accommodating a steel ball 9, the steel ball is arranged in the through hole, the diameter of the steel ball is larger than the depth of the through hole, the right side of the through hole of the quick-connection matrix is also provided with a steel wire retainer ring 10 for limiting the valve sleeve or the steel ball to be separated, the inner wall of the valve sleeve 11 is provided with a step 11.1 which is inward in the radial direction, and the outer wall of the male joint is provided with an annular groove 12.2; when the connector body and the male connector are in a non-insertion state, the side wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball abuts against the outer wall of the valve, and when the connector body and the male connector are in an insertion state, the inner wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball is accommodated in the annular groove.
By adopting the specific structure, when the connector body and the male connector are not in plug connection, the first elastic piece is in a relaxation state at the moment, the valve is tightly propped against the inner wall of the quick-connection parent body, and the air inlet channel arranged on the connector body is in a closed state at the moment and cannot convey air out; when the male connector is inserted into the connector body, the valve is inevitably pushed to be compressed towards the connector body in the gradual entering process of the connector body, the first elastic piece is gradually in a compressed state in the process, the valve is separated from the inner wall of the quick-connection parent body, a gap is formed between the valve and the quick-connection parent body at the moment, and gas enters a gas circulation channel between the valve and the male connector through the gap to realize the communication and the conveying of the gas; in the structure of the quick-connection female connector, the valve is creatively designed to realize the sliding in the inner wall of the quick-connection female body in the mutual contact process of the male connector in the plugging process, the valve sleeve does not need to be pushed firstly and then the male connector is plugged, but the male connector can be directly plugged, so that the mutual plugging of the connector body and the male connector can be realized by one hand; when the valve sleeve needs to be disassembled, the valve sleeve and the step of the valve sleeve are slightly pushed by only one hand to move towards the direction of the joint body, the steel ball is given an exit space, the steel ball is separated from the annular groove of the male joint, and meanwhile, the first elastic piece pushes the valve and the valve to push the male joint to be separated. Therefore, the coupling head can be realized by one hand regardless of plugging or disassembling, is convenient and simple to operate, does not limit the operation space, and is simple and rapid to operate.
As shown in the attached drawings 2-3, a first sealing ring 5 is arranged on the outer wall of the valve 4 close to the end abutting against the first elastic piece, and when the valve abuts against the inner wall of the fast connection parent body, the gas is closed; adopt the effect that can better realization was opened and was closed the gas to can effectively prevent gas leakage.
As shown in the attached figure 2, a second sealing ring 6 is arranged on the outer wall of the valve, which is attached to the inner wall of the quick-connection parent body; the structure can prevent gas from leaking between the valve and the quick connection parent body; the second sealing ring 6 can be specifically arranged at the position close to the middle of the outer wall of the valve, and is always positioned between the inner wall of the quick-connection parent body and the outer wall of the valve no matter in the state that the male connector is connected with the connector body in an inserting mode or in a non-inserting mode, so that the sealing on the contact surface of the inner wall of the quick-connection parent body and the valve is realized.
As shown in fig. 2-3, a third sealing ring 7 is arranged on the inner wall of the valve, which is in contact with the male connector, and the third sealing ring is specifically located on the valve; the setting of this structure can effectively realize the sealed of valve and male joint mutual contact's position, prevents that gas from revealing between the gap of above-mentioned contact.
As shown in the attached drawings 2-3, the valve 4 is radially provided with a plurality of vent holes 4.1, the vent holes are positioned on the right side of the first sealing ring and are closely adjacent to the first sealing ring, so that when the air inlet channel is closed, the vent holes are attached to the inner wall of the quick-connection parent body to realize closing, and when the air inlet channel is opened, the vent holes are separated from the inner wall of the quick-connection parent body to realize opening; adopt this structure can make opening and closing effective control of gas, prevent to reveal or open unsmoothly.
As shown in fig. 2-4, the step 11.1 has a first contact surface 11.2 and a second contact surface 11.3, the first contact surface extends along the axial direction, the second contact surface is disposed obliquely and is in transition connection with the inner wall of the valve sleeve 11 at the end far away from the second elastic member, and an accommodating space 11.4 for accommodating the convex through hole portion of the steel ball is formed; by adopting the structure, when the male connector is not inserted, the steel ball moves towards the radial outward direction under the abutting action of the valve end (the first elastic part exerts elastic force on the valve to push the valve), the steel ball can be positioned in the through hole and the accommodating space, one axial end of the steel ball is abutted by the steel wire retainer ring, the other axial end of the steel ball is abutted by the step and the inner wall of the through hole, and the second elastic part is positioned in the compressed pile body. At this time, the male connector can be directly inserted into the connector body without obstacles and without pushing the valve sleeve first.
The number of the steel balls is three, and the steel balls are uniformly distributed along the circumferential direction of the quick connection parent body; only one of the steel balls is shown in the drawings due to the sectional angle problem; adopt this structure can be fine realization to the locking of male joint, and the atress is balanced, can not take place to squint, and the guarantee leakproofness is better.
As shown in fig. 3-4, the male connector 12 of the present application includes a first flat portion 12.3, a second angled portion 12.4 and a main body portion 12.5 connected in series, with an annular groove located on the main body portion and adjacent to the second angled portion; the inner wall of the valve is matched with the first straight part and the second inclined part, so that the outer side wall of the male connector is attached to the inner side wall of the valve after the connector body is spliced with the male connector; by adopting the structure, the sealing between the contact surfaces of the valve and the male connector can be effectively realized, and only the fuel gas flows from the gas circulation channel.
As shown in fig. 2-3, the body 12.5 of the present application is provided with a stop protrusion 12.6 for limiting the insertion depth of the male connector, and the stop protrusion extends outward along the radial direction of the male connector, so that the structure can effectively achieve the correct insertion depth and prevent excessive insertion.
The diameter of the steel ball in this embodiment is equal to the depth of the through hole plus the distance between the outer wall of the quick connection parent body and the near end of the male headrest and the inner wall of the section of the valve sleeve, or the diameter of the steel ball is equal to the depth of the through hole plus the depth of the annular groove; by adopting the structure, the mutual relation and good matching of all parts in a plugging or non-plugging state can be ensured. Of course, the diameter of the steel ball is at least larger than the depth of the through hole, and other dimensions which meet the requirements of the in-line use in the application can be considered to fall into the protection scope of the application.
The application one end of first elastic component supports and leans on in the bottom that holds the chamber, and the other end of first elastic component leans on so that the valve is in two kinds of states with the valve counterbalance: when the male connector is not inserted into the connector body, the first elastic body is in a relaxation state and performs outward elasticity on the valve, so that the valve and the inner wall of the quick connection parent body are mutually abutted to close the air inlet channel; or when the male connector is inserted into the connector body, the first elastic body is in a compressed state, so that the valve is separated from the inner wall of the quick-connection parent body, and the communication between the air inlet channel and the air circulation channel is realized.
First elastomer or the second elastomer of this application are the spring, if conical spring, coil spring etc. only can adapt to this application operation requirement's spring homoenergetic.
The utility model provides an inlet channel and appearance chamber intercommunication, when the valve with connect the parent soon between present the separation state, inlet channel, appearance chamber, air vent and male joint's gas flow channel are intercommunication each other to realize the transport of gas. The valve is of a structure with one closed end and a hollow interior, and the closed end is used for abutting against the quick connection parent body to realize the closing and the closing of fuel gas; the radial through hole is communicated with the hollow part inside, and the other end is an open type convenient male connector for plugging.
The diameter of the steel ball needs to be larger than the depth of the through hole, and the diameter of the two end faces of the through hole, wherein the diameter of the end face close to the interior of the quick connection parent body is smaller than the diameter of the steel ball, so that the steel ball is prevented from being separated from the through hole; meanwhile, the distance from the inner wall of the valve sleeve to the outer wall of the quick connection parent body in the accommodating space is smaller than the diameter of the steel ball, and the dry ball is prevented from being separated from the accommodating space.
In addition, as can be seen from the attached drawings, the air inlet joint is provided with the zigzag radial protrusions, so that the air inlet joint is more tightly connected with a pipeline and is prevented from loosening or leaking air.
The working principle of the application is as follows: when the male connector is not inserted, the first elastic piece in the connector body is in a relaxation state, at the moment, the first sealing ring of the valve is tightly attached to the inner wall of the quick connector body, and the communication between the air inlet channel on the connector body, the accommodating cavity and the vent hole is blocked; the second elastic body is in a compressed state, the valve is positioned at the rightmost side under the pushing of the relaxation force of the first elastic body, the outer side wall, close to the front end (the inserting end of the male connector), of the valve is tightly attached to the inner side wall of the quick connection parent body, the steel ball is extruded outwards from the through hole, the end part, close to the center of the valve, of the steel ball is flush with the inner side wall of the quick connection parent body, the other end of the steel ball extends out of the through hole and abuts against a second contact surface, obliquely arranged on a step of the valve sleeve, and the end, close to the male connector, of the steel ball is abutted against by the; at the moment, the second elastic piece between the valve sleeve and the quick connection parent body is in a compressed state; when the male connector is inserted into the connector body, the first straight part of the male connector firstly enters the hollow part of the valve, then the second inclined part enters the hollow part of the valve, the valve is extruded after the second inclined part is jointed with the inner wall of the valve, so that the valve moves towards the direction of the connector body and compresses the first elastic body, the outer side wall of the valve is separated from the position of the through hole of the steel ball, the steel ball moves towards the position of the center (the direction of the central axis of the valve or the male connector) under the thrust of the second contact surface of the step driven by the second elastic body, when the annular groove moves below the through hole, the steel ball partially falls into the annular groove, the second elastic part relaxes to push the valve sleeve, the valve sleeve pushes the steel ball to completely fall into the through hole and the annular groove, the valve sleeve is pressed by the steel wire retainer ring, the first contact surface of the step is jointed with the outer side wall of the quick-connection matrix, the outer side surface of the through hole for containing the steel ball is sealed, the steel ball is extruded into the through hole and the annular groove, the steel ball is prevented from being separated, the male connector is inserted into the connector body, the first elastic piece compression valve is separated from the quick-connection matrix, the air inlet channel, the containing cavity, the air vent and the gas circulation channel are communicated, and gas is conveyed successfully. When the male connector needs to be separated, the valve sleeve is pushed towards the connector body only by one hand, the accommodating space for accommodating the part of the steel ball protruding out of the through hole is formed outside the steel ball, the valve and the male connector are inevitably pushed to move towards the original inserting direction under the pushing of the first elastic piece, the steel ball is provided with a moving space, and the steel ball is also inevitably separated from the annular groove and moves outwards towards the through hole, so that the separation of the male connector is realized.
Claims (10)
1. The utility model provides a push-free cut straightly formula gas quick coupling which characterized in that: the connector comprises a connector body and a male connector, wherein an air inlet channel is arranged on the connector body, a gas circulation channel is arranged on the male connector, and the air inlet channel and the gas circulation channel are communicated with each other when the connector body and the male connector are connected in an inserting manner;
one end of the joint body is provided with an air inlet joint for communicating with an air source, and the other end of the joint body is connected with the quick-connection parent body; the joint body is internally provided with a containing cavity for containing a first elastic piece, one end of the first elastic piece abuts against the bottom of the containing cavity, the other end of the first elastic piece abuts against a valve, and the valve is sleeved in an axial cavity of the quick-connection parent body in a sliding mode to open and close the air inlet channel; the outer wall of one end, far away from the joint body, of the quick-connection parent body is axially sleeved with a valve sleeve, a second elastic piece is arranged between the valve sleeve and the quick-connection parent body, one end of the second elastic piece abuts against the quick-connection parent body, and the other end of the second elastic piece abuts against the valve sleeve so as to tightly push the valve sleeve;
the quick-connection female body is also provided with a through hole for accommodating a steel ball, the steel ball is arranged in the through hole, the diameter of the steel ball is larger than the depth of the through hole, the right side of the through hole of the quick-connection female body is also provided with a steel wire retainer ring for limiting the valve sleeve or the steel ball to be separated, the inner wall of the valve sleeve is provided with a step which is inward in the radial direction, and the outer wall of the male connector is provided with an annular groove; when the connector body and the male connector are in a non-insertion state, the side wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball abuts against the outer wall of the valve, and when the connector body and the male connector are in an insertion state, the inner wall of the step abuts against the steel ball, the end, close to the axis, of the steel ball is accommodated in the annular groove.
2. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the valve is close to and supports to be provided with first sealing washer on the outer wall that leans on the end with first elastic component, works as valve and the butt of connecing the parent inner wall soon when leaning on to the realization is to closing of gas.
3. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: and a second sealing ring is arranged on the outer wall of the valve, which is attached to the inner wall of the quick connection parent body.
4. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: and a third sealing ring is arranged on the inner wall of the valve, which is in mutual contact with the male connector.
5. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the valve is provided with a plurality of air vents in the radial direction, the air vents are located on the right side of the first sealing ring and are close to the first sealing ring so that the air inlet channel is closed when the air inlet channel is attached to the inner wall of the quick-connection parent body, and when the air inlet channel is opened, the air vents are separated from the inner wall of the quick-connection parent body to be opened.
6. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the step has first contact surface and second contact surface, first contact surface extend along axial direction, second contact surface slope set up and realize keeping away from the inner wall transitional coupling of second elastic component place end with the valve barrel to form the accommodation space of holding steel ball protrusion through-hole part.
7. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the number of the steel balls is three, and the steel balls are uniformly distributed along the circumferential direction of the quick connection parent body.
8. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the male connector comprises a first straight part, a second inclined part and a main body part which are sequentially connected, and the annular groove is positioned on the main body part and is adjacent to the second inclined part; the inner wall of the valve is matched with the first straight part and the second inclined part, so that the outer side wall of the male connector is attached to the inner side wall of the valve after the connector body and the male connector are connected in an inserting mode.
9. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the main body part is provided with a stopping bulge used for limiting the insertion depth of the male connector.
10. The push-free direct-insertion type gas quick coupling head of claim 1, wherein: the diameter of the steel ball is equal to the depth of the through hole plus the distance from the outer wall of the near end of the quick connection parent body and the male headrest to the inner wall of the section of the valve sleeve, or the diameter of the steel ball is equal to the depth of the through hole plus the depth of the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462201.9A CN111594684A (en) | 2020-05-27 | 2020-05-27 | Push-free direct insertion type gas quick coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010462201.9A CN111594684A (en) | 2020-05-27 | 2020-05-27 | Push-free direct insertion type gas quick coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111594684A true CN111594684A (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010462201.9A Pending CN111594684A (en) | 2020-05-27 | 2020-05-27 | Push-free direct insertion type gas quick coupling |
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| Country | Link |
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| CN (1) | CN111594684A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555547A (en) * | 2020-12-24 | 2021-03-26 | 格力电器（武汉）有限公司 | Joint assembly |
| CN113339610A (en) * | 2021-06-29 | 2021-09-03 | 宁波康韩瑞电器有限公司 | Quick butt joint structure of interface for air conditioner |
| CN114542831A (en) * | 2020-11-27 | 2022-05-27 | 广东美的制冷设备有限公司 | Self-locking joint assembly and air conditioner |
| CN114754211A (en) * | 2022-03-29 | 2022-07-15 | 国网内蒙古东部电力有限公司通辽供电公司 | Formula leak protection gas pipe connector cut straightly |
| TWI790013B (en) * | 2021-11-29 | 2023-01-11 | 佳承精工股份有限公司 | Quick Connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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