CN207470958U - Tamper union nut, tamper pipe connection device and air conditioner - Google Patents
Tamper union nut, tamper pipe connection device and air conditioner Download PDFInfo
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- CN207470958U CN207470958U CN201721617406.XU CN201721617406U CN207470958U CN 207470958 U CN207470958 U CN 207470958U CN 201721617406 U CN201721617406 U CN 201721617406U CN 207470958 U CN207470958 U CN 207470958U
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Abstract
The utility model provides a kind of tamper union nut, tamper pipe connection device and air conditioner.Wherein, tamper union nut includes：Nut body has the internal thread coordinated with pipe fitting and the conical surface of the assembling of the horn mouth with taking over part, nut body is screwed；Part is screwed with hollow cavity, screws the opening for offering on part and penetrating through in an axial direction, opening is more than the outer diameter taken over along the width for screwing part circumferential direction, takes over or deviates from from opening from the place of taking over so as to screw part and can be snapped into from opening；Screwing part can be sleeved on nut body, screw and transmission fit structure is equipped between part and nut body, screw part by being driven fit structure and transmit clamp load torque to nut body.Tamper union nut provided by the utility model after the completion of assembling, will screw part and be deviate from by opening thereon from the place of taking over, and so as to not only meet the tamper requirement of combustible refrigerant pipeline, but also realize that will screw part easily separates from entire pipe connection system.
Description
Technical field
The utility model is related to air-conditioning technical fields, more specifically, are related to a kind of tamper union nut, a kind of tamper pipe
Connection device and a kind of air conditioner.
Background technology
At present, indoor unit is connected by split air conditioner generally use pipe fitting with union nut with the pipeline of outdoor unit
It connects.And for the air conditioner for using flammable refrigerant, in order to avoid secondary refrigerant leakage being caused to cause safety accident when accidentally dismantling,
Correlation standard indoor does not allow to use detachable connector.
In order to meet the non-disconnectable requirement of pipe connection device, the pipe fitting of Anti-dismantling or take over spiral shell are devised in the relevant technologies
Mother, however its assembling structure is complicated, and while tamper requirement is met, under also being detached from pipe fitting or union nut
The component come is remained in pipe-line system, influences the overall effect of product.
Utility model content
The utility model is intended at least solve one of technical problem in the prior art.
For this purpose, the purpose of the first aspect of the utility model is, a kind of tamper union nut is provided.
The purpose of the second aspect of the utility model is, provides a kind of tamper pipe for including above-mentioned tamper union nut
Connection device.
Purpose in terms of the third of the utility model is, provides a kind of air-conditioning for including above-mentioned tamper pipe connection device
Device.
To achieve the above object, the technical solution of the utility model first aspect provides a kind of tamper union nut, packet
It includes：Nut body has the internal thread coordinated with pipe fitting and the conical surface of the assembling of the horn mouth with taking over；With screw part, have
Hollow cavity, described to screw the opening for offering on part and penetrating through in an axial direction, the opening is more than along the width for screwing part circumferential direction
The outer diameter taken over so that it is described screw part and can be snapped into from the opening described take over or connect from described be open from described
Deviate from pipe；Wherein, the part that screws can be sleeved on the nut body, described to screw between part and the nut body
Equipped with transmission fit structure, the part that screws transmits clamp load torque by the transmission fit structure to the nut body.
The tamper union nut that the utility model above-mentioned technical proposal provides, part and nut are screwed in tamper union nut
Setting transmission fit structure between ontology screws part and transmits clamp load torque to nut body by the transmission fit structure, realizes
Nut body is fastenedly connected with pipe fitting；After the completion of assembling, part will be screwed and taken off from connector along assembling axis direction, then
Part will be screwed by opening thereon from the place of taking over to deviate from, make to screw part and detached with entire pipe connection system, so as to because connecting
Lack the part that screws for transmitting torque to nut body with nut body cooperation on pipeline, realize that pipeline jointing construction is non-disconnectable；
Can also further destroy on nut body with the transmission fit structure for screwing part cooperation, make to screw part can not again with nut body
Cooperation, further ensures that pipeline jointing construction is non-disconnectable, so as to not only meet the tamper requirement of combustible refrigerant pipeline, but also realizes and will revolve
Stubborn part is easily separated from entire pipe connection system, improves the overall effect of product.
It should be noted that in assembling, part can will be screwed by opening sleeve thereon on the outer surface taken over, so
Part is screwed by movement afterwards to be sleeved on part is screwed on the outer surface of nut body；It is advance from its hollow cavity can also will to screw part
It is sleeved on and takes over, screwing part by movement in assembling is sleeved on part is screwed on the outer surface of nut body.
In addition, the tamper union nut that the utility model above-mentioned technical proposal provides can also have following supplementary technology spy
Sign：
In the above-mentioned technical solutions, the outer surface of the nut body is cylindrical surface, and the outer surface for screwing part has
At least two pressure-bearing surfaces clamped for tool.
The outer surface of nut body is cylindrical surface, can not be by the reversed screw on nut sheet of tool due to lacking force application plane
Body so as to ensure that the non-dismountable property of pipe fitting and tamper union nut, is avoided because accidentally dismounting leads to secondary refrigerant leakage accident
Generation；Screw part outer surface have at least two for tools clamping pressure-bearing surfaces, so as to by tool to screwing part
Apply clamp load torque, it is preferable that the outer surface for screwing part is prismatic surface, it is further preferred that the outer surface for screwing part is six ribs
Cylinder.
In the above-mentioned technical solutions, the transmission fit structure is single-direction transmission fit structure, and the part that screws is applied
Clamp load torque, the single-direction transmission fit structure transmit clamp load torque to the nut body；To it is described screw part application unscrew
Torque, the part that screws are rotated around the nut body.
Transmission fit structure is single-direction transmission fit structure, after nut body is tightened in this way, then is applied to screwing part
The unscrewing torque for screwing part can not be passed to nut body well, i.e., can not be revolved by screwing part by reversed unscrewing torque
Loose nut body further ensures that pipeline jointing construction is non-disconnectable.
In any of the above-described technical solution, the transmission fit structure includes：Be located at the nut body outer surface and
Protrusion on one in the inner surface for screwing part and the groove being located on another, the protrusion have along screwing
Direction screws stress surface with the fit depressions.
By in the outer surface of nut body and screwing setting protrusion and groove on the inner surface of part, screw part and pass through setting
The stress that screws on protrusion transmits clamp load torque towards nut body, realizes the purpose that nut body is tightened by screwing part.
In the above-mentioned technical solutions, the protrusion is located on the outer surface of the nut body, and the protrusion is in that edge unscrews
Gradually outwardly extending pointed shape, the protrusion are by the outer of the nut body backwards to the one side for screwing stress surface in direction
Surface edge unscrews the guide surface that direction gradually extends outward to form.
Protrusion is in that edge unscrews direction gradually outwardly extending pointed shape, with after the completion of assembling, it is easy to ground tie protrusion
Structure destroys, and the groove in the portion of screwing is made not formed again with the outer surface of nut body and is coordinated, further meets combustible refrigerant and prevents
The condition torn open；The one side that protrusion screws stress surface backwards simultaneously is to unscrew direction gradually to extension from the outer surface edge of nut body
Stretch the guide surface to be formed, along unscrew direction rotate screw part when, the protrusion on nut body is deviate from out of groove that screw on part,
It screws part and opposite slip occurs with nut body, nut body can not be driven to rotate by screwing part, that is, screwing part can not be along rotation
Loose measure transmits unscrewing torque to nut body, can only tighten nut body so as to fulfill part is screwed and is unable to loosening nut ontology
Purpose, further meet the tamper requirement of combustible refrigerant.
In the above-mentioned technical solutions, the protrusion be located at it is described screw on the inner surface of part, the protrusion is in along the side of unscrewing
To the pointed shape gradually to extend internally, the protrusion is by the inner surface for screwing part backwards to the one side for screwing stress surface
Edge unscrews the guide surface that direction gradually extends inwardly to form.
Protrusion is located on the inner surface for screwing part, correspondingly groove is located on the outer surface of nut body, protrusion is in
Along unscrewing the pointed shape that direction gradually extends internally, and it is inner surface edge by screwing part that protrusion screws the one side of stress surface backwards
The guide surface that direction gradually extends inwardly to form is unscrewed, is obtained along protrusion when unscrewing direction and screwing part, screwed on part from spiral shell
Deviate from groove on maternal body, nut body can not be driven to rotate by screwing part, that is, screw part can not along unscrew direction to
Nut body transmits unscrewing torque, so as to fulfill screw part can only tighten nut body and the purpose that is unable to loosening nut ontology.
In the above-mentioned technical solutions, the protrusion is located on the outer surface of the nut body close to described one end taken over
Portion, and along the axially extending of the nut body；The groove is located at described screw on the inner surface of part close to the pipe fitting
One end, and screw the axially extending of part along described, the groove screws the width of part axial direction and the protrusion edge described in
The width of the nut body axial direction is adapted.
Protrusion is located on the outer surface of nut body and is located on the inner surface for screw part and leans on close to the one end taken over, groove
The one end of nearly pipe fitting, so as to which by screwing part to the movement close to the direction of nut body, realization will screw part and be sleeved on spiral shell
On the outer surface of maternal body, and make the protrusion of connecting tube and screw the groove of part to cooperatively form transmission for transmitting clamp load torque
Fit structure, realization screw part and nut body rotation are driven to be tightened with pipe fitting cooperation；Protrusion along the axially extending of nut body,
Groove makes protrusion have certain width along the axial direction of nut body along the axially extending of part is screwed, and correspondingly groove edge screws
The axial direction of part has certain width, to ensure that protrusion screws stress surface with groove with sufficiently large, so that it is guaranteed that by convex
Portion transmits the reliability of clamp load torque with groove cooperation, avoids protrusion or groove before pipe fitting and tamper union nut are tightened
It is broken.
In the above-mentioned technical solutions, the protrusion is located on the outer surface of the nut body close to described one end taken over
Portion, and along the axially extending of the nut body, the groove is located at described screw on the inner surface of part, and penetrate through institute in an axial direction
It states and screws part.
Groove is located on the inner surface for screwing part, and perforation screws part in an axial direction, can be whole so that screwing part during assembling
A be sleeved on nut body applies clamp load torque to nut body, so that it is guaranteed that screwing power to nut body transmission from screwing part
The stationarity of square.
In the above-mentioned technical solutions, the outer surface upper edge of the nut body its be circumferentially at least one protrusion,
It is circumferentially at least one groove to the inner surface upper edge for screwing part, and the quantity of the groove be no less than it is described convex
The quantity in portion.
The quantity of protrusion can be one, or it is multiple, when the quantity of protrusion is multiple, nut sheet can be increased
Body and the area for screwing stress surface between part is screwed, screwed so that it is guaranteed that being coordinated by protrusion with groove to nut body transmission
The reliability of torque；And in the outer surface of nut body along its circumferentially disposed multiple protrusion, by multiple protrusions respectively with rotation
Twist multiple grooves cooperation on the inner surface of part, it can be ensured that transmit the stationarity of clamp load torque.
The technical solution of the second aspect of the utility model provides a kind of tamper pipe connection device, including：Pipe fitting；With
Union nut, the union nut are the tamper union nut described in any of the above-described technical solution.
The tamper pipe connection device that the utility model above-mentioned technical proposal provides, passes through pipe fitting and union nut connecting tube
Road during assembling, will take over to snap onto from the opening for screwing part and screw inside part, then will screw part set and be attached to the outer of nut body
Surface makes to screw the transmission fit structure on part and nut body and is coordinated, and nut body and screws after part works good, will
Nut body, screw part and take over the centering of pipe fitting center, screw part along screwing direction and can be manually rotated, rotate to screw part without
Until method rotates；Then it screws the pressure-bearing surface on the outer surface of part with tool holder, continues to screw part along screwing direction and rotate, reach
To nut body, take over and form effective close-fitting state with pipe fitting；Can also nut body, screw part and take over
The centering of pipe fitting center, directly screws the pressure-bearing surface on the outer surface of part with tool holder, screws part along screwing direction and rotating, reaches
To nut body, take over and form effective close-fitting state with pipe fitting；Pipe fitting, nut body and take over assembling in place
Afterwards, back off tool will screw part and be removed from nut body upper edge assembling axis direction, then will screw part and pipeline from opening
Connection structure detaches；Finally with the angular position of the protrusion of tool push nut ontology, the wedge angle of protrusion is destroyed, makes to screw part
It can not be formed and coordinated with the outer surface of nut body again, meet the requirement of combustible refrigerant Anti-dismantling.
Technical solution in terms of the third of the utility model provides a kind of air conditioner, including：Outdoor unit, the outdoor
First to circulate for refrigerant is connected on machine to take over；And indoor unit, second to circulate for refrigerant, which is connected with, on the indoor unit connects
Pipe, described first takes over and is connected with the tamper pipe connection device described in the second take over Pass through above-mentioned technical proposal.
The air conditioner that the utility model above-mentioned technical proposal provides, the Anti-dismantling pipe described in above-mentioned technical proposal is included because of it
Connection device, thus with the advantageous effect of the Anti-dismantling pipe connection device described in above-mentioned technical proposal, details are not described herein.
The additional aspect and advantage of the utility model will become apparent or new by this practicality in following description section
The practice of type is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 is tamper union nut described in the utility model one embodiment and the structure diagram before pipe fitting assembling；
Fig. 2 is the structure diagram screwed after part and nut body assembling of tamper union nut shown in Fig. 1；
Fig. 3 is tamper union nut shown in Fig. 2 and the structure diagram after pipe fitting assembling；
Fig. 4 is that tamper union nut shown in Fig. 3 screws the structure diagram after part is detached with nut body；
Fig. 5 is tamper union nut shown in Fig. 3 and the schematic cross-sectional view after pipe fitting assembling；
Fig. 6 is that tamper union nut shown in Fig. 3 screws the main structure diagram after part is removed；
Fig. 7 is the fit structure schematic diagram for screwing part and nut body of tamper union nut shown in Fig. 2；
Fig. 8 is the structure diagram of the nut body of tamper union nut shown in Fig. 7；
Fig. 9 is the side structure schematic view of the nut body of tamper union nut shown in Fig. 8；
Figure 10 is the structure diagram for screwing part of tamper union nut shown in Fig. 7；
Figure 11 be in Figure 10 A-A to schematic cross-sectional view.
Wherein, the correspondence in Fig. 1 to Figure 11 between reference numeral and component names is：
1 nut body, 11 internal threads, 12 conical surfaces, 13 protrusions, 131 screw stress surface, and 132 guide surfaces, 2 screw part, and 21 open
Mouthful, 22 grooves, 23,24 pressure-bearing surfaces, 3 first take over, 31 horn mouths, 4 pipe fittings, 41 external screw threads, 42 tapered portion, and 5 second take over.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
It is novel to be implemented using other different from mode described here, therefore, the scope of protection of the utility model not by
The limitation of following public specific embodiment.
Tamper union nut, tamper pipe of 1 to Figure 11 description according to some embodiments of the utility model with reference to the accompanying drawings
Connection device and air conditioner.
As shown in Figure 1 to 11, a kind of tamper union nut provided according to the utility model some embodiments, including：
Nut body 1 and screw part 2.
Specifically, nut body 1 has the internal thread 11 that coordinates with pipe fitting 4 and with taking over that (first in such as figure takes over
3) conical surface 12 that horn mouth 31 assembles；Screwing part 2 has hollow cavity, screws the opening 21 for offering on part 2 and penetrating through in an axial direction,
Opening 21 is more than the outer diameter of the first take over 3 along the circumferential width of part 2 is screwed, so that first can be snapped into from opening 21 by screwing part 2
Deviate from take over 3 or from opening 21 at the first take over 3；Wherein, screwing part 2 can be sleeved on nut body 1, screw part 2
Transmission fit structure is equipped between nut body 1, part 2 is screwed by being driven fit structure and screws power to the transmission of nut body 1
Square.
As shown in Figure 7, it is illustrated that in label a expressions screw the opening 21 of part 2 along screwing the circumferential width of part 2；Such as Fig. 5 institutes
Show, it is illustrated that in label d represent the first take over 3 outer diameter.
The tamper union nut that the utility model above-mentioned technical proposal provides, part 2 and spiral shell are screwed in tamper union nut
Setting transmission fit structure between maternal body 1 screws part 2 and transmits clamp load torque to nut body 1 by the transmission fit structure,
It is fastenedly connected so as to fulfill nut body 1 and pipe fitting 4, assembling structure is simple；After the completion of assembling, part 2 will be screwed along assembled shaft
Line direction is taken off from connector 1, then will screw part 2 by opening 21 thereon from the place of taking over deviate from, realization screw part 2 with
Entire pipe connection system separation, so as to transmit torque to nut body 1 with the cooperation of nut body 1 because on connecting line lacking
Screw part 2, realize that pipeline jointing construction is non-disconnectable；The biography with screwing the cooperation of part 2 on nut body 1 can also further be destroyed
Movable fit structure, make to screw part 2 to coordinate with nut body 1 again, further ensure that pipeline jointing construction is non-disconnectable, so as to both
Meet the tamper requirement of combustible refrigerant pipeline, and realize that will screw part 2 easily separates from entire pipe connection system,
Improve the overall effect of product.
It should be noted that in assembling, it can will screw part 2 and the outer surface taken over is sleeved on by opening 21 thereon
On, part 2 is then screwed by movement and is sleeved on part 2 is screwed on the outer surface of nut body 1；It can also will screw part 2 from its
Hollow cavity is sleeved on takes in advance, passes through the mobile outer surface for screwing part 2 and screwing part 2 and be sleeved on nut body 1 in assembling
On.
Specifically, it may be nonmetal parts that nut body 1, which can be metalwork,；It can be that metalwork also may be used to screw part 2
Think nonmetal parts.
In one embodiment of the utility model, as depicted in figs. 1 and 2, the outer surface of nut body 1 is cylindrical surface,
As illustrated in fig. 7 and fig. 10, screwing the outer surface of part 2 has at least two pressure-bearing surfaces 23,24 for tool clamping.
The outer surface of nut body 1 is cylindrical surface, can not be by the reversed screw on nut of tool due to lacking force application plane
Ontology 1 so as to ensure that the non-dismountable property of pipe fitting 4 and tamper union nut, is avoided because accidentally dismounting leads to secondary refrigerant leakage
The generation of accident；Screwing the outer surface of part 2 has at least two pressure-bearing surfaces 23,24 for tool clamping, so as to pass through work
Tool applies clamp load torque to screwing part 2, it is preferable that the outer surface for screwing part 2 is prismatic surface, it is further preferred that screwing part 2
Outer surface is hexagonal prisms face.
In some embodiments of the utility model, as shown in fig. 7, transmission fit structure is single-direction transmission fit structure,
Apply clamp load torque to screwing part 2, single-direction transmission fit structure transmits clamp load torque to nut body 1；Apply rotation to screwing part 2
Loose torque screws part 2 and is rotated around nut body 1.
Transmission fit structure is single-direction transmission fit structure, after nut body 1 is tightened in this way, then is applied to screwing part 2
Add reversed unscrewing torque, the unscrewing torque for screwing part 2 can not be passed to nut body 1 well, i.e., it can not be by screwing part 2
Carry out loosening nut ontology 1, further ensure that pipeline jointing construction is non-disconnectable.
In one embodiment of the utility model, as shown in Fig. 1, Fig. 4, Fig. 6 and Fig. 7, transmission fit structure includes：If
Protrusion 13 on the outer surface of nut body 1 and the groove 22 being located on the inner surface for screwing part 2, such as Fig. 7 and Fig. 8 institutes
Showing, protrusion 13 has along direction is screwed and groove 22 is matched screws stress surface 131, is coordinated by protrusion 13 and groove 22,
Realization screws part 2 and transmits clamp load torque to nut body 1.
In one embodiment of the utility model, as shown in Figure 1 and Figure 4, protrusion 13 is located on the outer surface of nut body 1
Close to taking over the one end of (the first take over 3 in such as figure), and along the axially extending of nut body 1；Groove 22, which is located at, screws part 2
Inner surface on close to pipe fitting 4 one end, and along screwing the axially extending of part 2, and groove 22 is along screwing the axial width of part 2
It spends and is adapted with protrusion 13 along the axial width of nut body 1.
As shown in Fig. 1 and Fig. 9, it is illustrated that in label b represent protrusion 13 along the axial width of nut body 1；Such as Figure 11 institutes
Show, it is illustrated that in label c represent groove 22 along screwing the axial width of part 2.
Protrusion 13 is located at close to the one end of the first take over 3 on the outer surface of nut body 1, and groove 22, which is located at, screws part 2
Inner surface on close to pipe fitting 4 one end, so as to which by screwing part 2 to the movement close to the direction of nut body 1, realizing will
It screws part 2 to be sleeved on the outer surface of nut body 1, and the protrusion 13 of connecting tube is made to be cooperatively formed with screwing the groove 22 of part 2
For transmitting the transmission fit structure of clamp load torque, realization screws part 2 and the rotation of nut body 1 is driven to be tightened with the cooperation of pipe fitting 4；
Protrusion 13 is axially extending along nut body 1, and groove 22 makes axis of the protrusion 13 along nut body 1 along the axially extending of part 2 is screwed
To with certain width, correspondingly groove 22 has certain width along the axial direction for screwing part 2, to ensure protrusion 13 and groove
22 screw stress surface 131 with sufficiently large, and the reliable of clamp load torque is transmitted so that it is guaranteed that coordinating by protrusion 13 and groove 22
Property, protrusion 13 or groove 22 before pipe fitting 4 is tightened with tamper union nut is avoided to be broken.
In another embodiment of the utility model, as shown in Fig. 1 and Figure 11, protrusion 13 is located at the outer of nut body 1
Close to the one end of take over 3 on surface, and along the axially extending of nut body 1, groove 22 is located on the inner surface for screwing part 2,
And perforation screws part 2 in an axial direction.
Groove 22 is located on the inner surface for screwing part 2, and perforation screws part 2 in an axial direction, so that screwing 2 energy of part during assembling
Enough be entirely sleeved on nut body 1 applies clamp load torque to nut body 1, so that it is guaranteed that being passed from screwing part 2 to nut body 1
Pass the stationarity of clamp load torque.
In one embodiment of the utility model, as shown in Figure 7 and Figure 8, protrusion 13 is located at the outer surface of nut body 1
On, protrusion 13 is in that edge unscrews direction gradually outwardly extending pointed shape, and the one side that protrusion 13 screws stress surface 131 backwards is by spiral shell
The outer surface edge of maternal body 1 unscrews the guide surface 132 that direction gradually extends outward to form.
Protrusion 13 is in along unscrewing direction gradually outwardly extending pointed shape, with after the completion of assembling, it is easy to which ground is by protrusion
13 structures are destroyed, and the groove 22 in the portion of screwing is made not formed again with the outer surface of nut body 1 and is coordinated, is further met flammable
The condition of refrigerant tamper；The one side that protrusion 13 screws stress surface 131 backwards simultaneously is the outer surface edge side of unscrewing by nut body 1
To the guide surface 132 gradually extended outward to form so that along when unscrewing direction and screwing part 2, the protrusion 13 on nut body 1
Deviate from from the groove 22 screwed on part 2, screw part 2 and occur to slide relatively with nut body 1, can not be driven by screwing part 2
Nut body 1 rotates, that is, unscrewing torque can not be transmitted along direction is unscrewed to nut body 1 by screwing part 2, so as to fulfill part 2 is screwed
Nut body 1 can only be tightened and be unable to the purpose of loosening nut ontology 1.
It should be noted that protrusion 13 can in the outer contour of the projection on the axial perspective plane of nut body 1
To be made of straight line, curve, circular arc etc..
Further, the outer surface upper edge of nut body 1 its be circumferentially at least one protrusion 13, screw the interior table of part 2
It is circumferentially at least one groove 22 to face upper edge, and the quantity of groove 22 is no less than the quantity of protrusion 13.
The quantity of protrusion 13 can be one, or it is multiple, when the quantity of protrusion 13 is multiple, spiral shell can be increased
Maternal body 1 and the area for screwing stress surface 131 between part 2 is screwed, so that it is guaranteed that coordinating by protrusion 13 and groove 22 to spiral shell
Maternal body 1 transmits the reliability of clamp load torque；And lead in the outer surface of nut body 1 along its circumferentially disposed multiple protrusion 13
The multiple grooves 22 crossed on inner surface of multiple protrusions 13 respectively with screwing part 2 coordinate, it can be ensured that transmit the flat of clamp load torque
Stability.
In another embodiment of the utility model, transmission fit structure includes：It is located on the outer surface of nut body 1
Groove (not shown) and the protrusion (not shown) that is located on the inner surface for screwing part 2, protrusion have along screwing
Direction with groove 22 is matched screws stress surface, coordinated by protrusion and groove, realization screws part 2 and transmitted to nut body 1
Clamp load torque.
Further, protrusion is located on the inner surface for screwing part 2, and protrusion is in that edge unscrews the wedge angle that direction gradually extends internally
Shape, the one side that protrusion screws stress surface backwards are to be led by screwing the inner surface of part 2 along unscrew that direction gradually extends inwardly to form
To face.
Protrusion 13 is located on the inner surface for screwing part 2, groove 22 is located on the outer surface of nut body 1, similary energy
It is enough realized by the cooperation of protrusion 13 and groove 22 and screws the purpose that part 2 transmits clamp load torque to driving member.
As shown in Figures 1 to 6, the embodiment of the second aspect of the utility model provides a kind of tamper pipe connection device,
Including：Pipe fitting 4 and union nut, union nut are the tamper union nut of any of the above-described embodiment.
Specifically, as shown in Figures 1 to 6, union nut includes nut body 1 and screws part 2, nut body 1 have with
The internal thread 11 that pipe fitting 4 coordinates and the conical surface 12 with the assembling of horn mouth 31 of the first take over 3；It screws part 2 and is sleeved on nut sheet
On body 1, screw and transmission fit structure is equipped between part 2 and nut body 1, screw part 2 by being driven fit structure to nut sheet
Body 1 transmits clamp load torque；The opening 21 for offering on part 2 and penetrating through in an axial direction is screwed, screwing part 2 can be from its opening 21 from first
Deviate from take over 3；One end of pipe fitting 4 has the external screw thread 41 coordinated with the internal thread 11 on nut body 1 and is connect with first
The tapered portion 42 that the horn mouth 31 of pipe 3 coordinates, tapered portion 42 are inserted at the conical surface 12 of nut body 1 and the loudspeaker of the first take over 3
Mouth 31 is engaged to form sealing.
The tamper pipe connection device that the utility model above-described embodiment provides, by pipe fitting 4 and union nut connecting line,
During assembling, the first take over 3 from the opening for screwing part 2 is snapped onto and is screwed inside part 2, then will screwed part 2 and be assembled to nut sheet
The outer surface of body 1 makes to screw the transmission fit structure on part 2 and nut body 1 and is coordinated, and nut body 1 and screws part 2 and matches
After getting togather, by nut body 1,2 and first take over 3 of part and 4 center centering of pipe fitting are screwed, rotation is can be manually rotated along direction is screwed
Part 2 is twisted, rotates to and screws until part 2 can not rotate；Then the pressure-bearing surface on the outer surface of part 2 is screwed with tool holder, is continued
Part 2 is screwed along screwing direction and rotating, reaches nut body 1, the first take over 3 and pipe fitting 4 and forms effective close-fitting state；
Can also in nut body 1, screw 2 and first take over 3 of part in 4 center pair of pipe fitting, directly screwing part 2 with tool holder
Pressure-bearing surface on outer surface screws part 2 along screwing direction and rotating, reaches nut body 1, the first take over 3 and pipe fitting 4 and be formed with
Imitate close-fitting state；After pipe fitting 4,1 and first take over of nut body, 3 assembling in place, back off tool, will screw part 2 from
1 upper edge of nut body assembling axis direction is removed, and then will screw part 2 at opening 21 detaches with pipeline jointing construction；Finally
With the angular position of the protrusion 13 of tool push nut ontology 1, the wedge angle of protrusion 13 is destroyed, make to screw part 2 can not again with spiral shell
The outer surface of maternal body 1 forms cooperation, meets the requirement of combustible refrigerant Anti-dismantling.
Embodiment in terms of the third of the utility model provides a kind of air conditioner (not shown), including：It is outdoor
Machine and indoor unit are connected with the first take over 3 (or second take over 5) circulated for refrigerant on outdoor unit, confession are connected on indoor unit
Second take over 5 (or first take over 3) of refrigerant circulation, the first take over 3 and the second take over 5 are connect by the tamper pipe of above-described embodiment
Device is connected.
The air conditioner that the utility model above-described embodiment provides, because it includes the Anti-dismantling pipe connection device of above-described embodiment,
The thus advantageous effect of the Anti-dismantling pipe connection device with above-described embodiment, details are not described herein.
In conclusion the utility model embodiment provide tamper union nut, tamper union nut screw part and
Setting transmission fit structure between nut body screws part and transmits clamp load torque to nut body by the transmission fit structure,
It is fastenedly connected so as to fulfill nut body and pipe fitting；After the completion of assembling, it is de- from the place of taking over by opening thereon that part will be screwed
Go out, realization screws part and detached with entire pipe connection system, and so as to not only meet the tamper requirement of combustible refrigerant pipeline, but also realization will
Part is screwed easily to separate from entire pipe connection system.
In the description of the utility model, it is to be understood that the orientation or position relationship of the instructions such as term " on ", " under " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description rather than instruction
Or imply that signified device or unit must have specific direction, with specific azimuth configuration and operation, it is thus impossible to understand
For the limitation to the utility model.
In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " Gu
It is fixed " etc. should all be interpreted broadly, for example, " connection " can be fixedly connected or be detachably connected or integrally connect
It connects or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary.For the ordinary skill people of this field
For member, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the particular features, structures, materials, or characteristics that the embodiment or example describe is contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In combine in an appropriate manner.
It these are only the preferred embodiment of the utility model, be not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of tamper union nut, which is characterized in that including：
Nut body has the internal thread coordinated with pipe fitting and the conical surface of the assembling of the horn mouth with taking over；With screw part, have
Hollow cavity, described to screw the opening for offering on part and penetrating through in an axial direction, the opening is more than along the width for screwing part circumferential direction
The outer diameter taken over so that it is described screw part and can be snapped into from the opening described take over or connect from described be open from described
Deviate from pipe；
Wherein, the part that screws can be sleeved on the nut body, and described screw is equipped between part and the nut body
Fit structure is driven, the part that screws transmits clamp load torque by the transmission fit structure to the nut body.
2. tamper union nut according to claim 1, which is characterized in that
The outer surface of the nut body is cylindrical surface, and the outer surface for screwing part has at least two holding for tool clamping
Pressure surface.
3. tamper union nut according to claim 1, which is characterized in that
The transmission fit structure is single-direction transmission fit structure, applies clamp load torque, the single-direction transmission to the part that screws
Fit structure transmits clamp load torque to the nut body；Unscrewing torque is applied to the part that screws, the part that screws is around described
Nut body rotates.
4. tamper union nut according to any one of claim 1 to 3, which is characterized in that
The transmission fit structure includes：One be located in the outer surface and the inner surface for screwing part of the nut body
On protrusion and the groove that is located on another, the protrusion have along screwing screwing for direction and the fit depressions
Stress surface.
5. tamper union nut according to claim 4, which is characterized in that
The protrusion is located on the outer surface of the nut body, and the protrusion is in that edge unscrews direction gradually outwardly extending wedge angle
Shape, the protrusion are gradually outside along direction is unscrewed by the outer surface of the nut body backwards to the one side for screwing stress surface
The guide surface extended to form；Or
The protrusion is screwed described in being located on the inner surface of part, and the protrusion is in that edge unscrews the wedge angle that direction gradually extends internally
Shape, the protrusion are to unscrew direction by the inner surface edge for screwing part gradually inwardly to prolong backwards to the one side for screwing stress surface
Stretch the guide surface to be formed.
6. tamper union nut according to claim 4, which is characterized in that
The protrusion is located on the outer surface of the nut body close to the one end taken over, and along the nut body
It is axially extending；The groove is located at described screw close to the one end of the pipe fitting on the inner surface of part, and screwed along described
Part it is axially extending, the groove screws the width of part axial direction and width of the protrusion along nut body axial direction described in
It is adapted.
7. tamper union nut according to claim 4, which is characterized in that
The protrusion is located on the outer surface of the nut body close to the one end taken over, and along the nut body
Axially extending, the groove is located at described screw on the inner surface of part, and screw part described in perforation in an axial direction.
8. tamper union nut according to claim 4, which is characterized in that
The outer surface upper edge of the nut body its be circumferentially at least one protrusion, the inner surface upper edge for screwing part
It is circumferentially at least one groove, and the quantity of the groove is no less than the quantity of the protrusion.
9. a kind of tamper pipe connection device, which is characterized in that including：
Pipe fitting；With
Union nut, the union nut are such as tamper union nut described in any item of the claim 1 to 8.
10. a kind of air conditioner, which is characterized in that including：
Outdoor unit is connected with first to circulate for refrigerant on the outdoor unit and takes over；With
Indoor unit is connected with second to circulate for refrigerant on the indoor unit and takes over, and described first takes over and taken over described second
It is connected by tamper pipe connection device as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617406.XU CN207470958U (en) | 2017-11-28 | 2017-11-28 | Tamper union nut, tamper pipe connection device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617406.XU CN207470958U (en) | 2017-11-28 | 2017-11-28 | Tamper union nut, tamper pipe connection device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470958U true CN207470958U (en) | 2018-06-08 |
Family
ID=62259931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721617406.XU Active CN207470958U (en) | 2017-11-28 | 2017-11-28 | Tamper union nut, tamper pipe connection device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940132A (en) * | 2017-11-28 | 2018-04-20 | 广东美的制冷设备有限公司 | Tamper union nut, tamper pipe connection device and air conditioner |
| CN109114339A (en) * | 2018-10-29 | 2019-01-01 | 奥克斯空调股份有限公司 | A kind of Anti-dismantling connector, connector component and air conditioner |
-
2017
- 2017-11-28 CN CN201721617406.XU patent/CN207470958U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940132A (en) * | 2017-11-28 | 2018-04-20 | 广东美的制冷设备有限公司 | Tamper union nut, tamper pipe connection device and air conditioner |
| CN109114339A (en) * | 2018-10-29 | 2019-01-01 | 奥克斯空调股份有限公司 | A kind of Anti-dismantling connector, connector component and air conditioner |
| CN109114339B (en) * | 2018-10-29 | 2023-08-11 | 奥克斯空调股份有限公司 | Anti-disassembly connector, connector assembly and air conditioner |
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