CN207470951U - Anti-dismantling union nut, Anti-dismantling pipe connection device and air conditioner - Google Patents
Anti-dismantling union nut, Anti-dismantling pipe connection device and air conditioner Download PDFInfo
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- CN207470951U CN207470951U CN201721617407.4U CN201721617407U CN207470951U CN 207470951 U CN207470951 U CN 207470951U CN 201721617407 U CN201721617407 U CN 201721617407U CN 207470951 U CN207470951 U CN 207470951U
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Abstract
The utility model provides a kind of Anti-dismantling union nut, Anti-dismantling pipe connection device and air conditioner.Anti-dismantling union nut includes nut body and twisting portion, and twisting portion and nut body are two individual parts, and nut body includes the first end for being connected with pipe fitting and the second end for coordinating with twisting portion；The lateral surface of first end is cylindrical surface, the lateral surface of second end generally cylindrical surface, edge is formed on the lateral surface of second end and unscrews the skewed slot that direction is gradually extended to the end face direction of second end, skewed slot forms along the end for screwing direction and abuts step, the pilot hole being inserted into for second end is offered in twisting portion, the hole wall of pilot hole is equipped with and the convex block of clamp load torque can be transmitted to nut body with abutting step cooperation.Above-mentioned technical proposal, along when unscrewing direction twisting twisting portion, twisting portion is skidded off along skewed slot from nut body, achievees the purpose that reversed tamper, is avoided because accidentally dismounting leads to the generation of secondary refrigerant leakage accident.
Description
Technical field
The utility model is related to air-conditioning technical fields, more specifically, are related to a kind of Anti-dismantling union nut, a kind of tamper
Unload 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.Existing pipe fitting and union nut are mainly made of thread segment and prism section two parts, and prism section has force application plane, are led to
It crosses and clockwise moment is applied to the prism section of pipe fitting and union nut, rotate together with thread segment and be fitted close to form sealing
Face allows refrigerant to circulate so as to which indoor unit be connected with the pipeline of outdoor unit.But by applying counterclockwise force to prism section
Square equally can be such that thread segment rotates counterclockwise together, so as to which the cooperation of pipe fitting and union nut be unclamped, i.e., pipe fitting with
There is dismounting between union nut.
But for using the air conditioner of flammable refrigerant, in order to avoid because secondary refrigerant leakage being caused to cause peace during accidentally dismounting
Full accident, correlation standard indoor do not allow to use detachable connector.Therefore, it is existing in order to meet pipe connection device requirement
The evaporator of indoor unit usually is taken over to take over outdoor unit by technology by welding manner to be connected.But welding has operation
Complexity, there are the shortcomings of security risk for office operation.
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 utility model the first aspect is, a kind of Anti-dismantling union nut is provided.
The purpose of the utility model the second aspect is, provides a kind of Anti-dismantling for including above-mentioned Anti-dismantling union nut
Pipe connection device.
Purpose in terms of the utility model third is, provides a kind of air-conditioning for including above-mentioned Anti-dismantling pipe connection device
Device.
To achieve the above object, the technical solution of the utility model the first aspect provides a kind of Anti-dismantling take over spiral shell
Mother, including：Nut body；With twisting portion, the twisting portion and the nut body are two individual parts, the nut body
Second end including the first end for being used to be connected with pipe fitting and for coordinating with the twisting portion；Wherein, the first end
Lateral surface for cylindrical surface, the lateral surface generally cylindrical surface of the second end, and being formed on the lateral surface of the second end
Along the skewed slot that direction is gradually extended to the end face direction of the second end is unscrewed, the skewed slot is formed along the end for screwing direction and is supported
Step is connect, the pilot hole being inserted into for the second end is offered in the twisting portion, the hole wall of the pilot hole is equipped with can
With it is described abut step cooperation with to the nut body transmit clamp load torque convex block.
The Anti-dismantling union nut that the utility model above-mentioned technical proposal provides, passes through pipe fitting and union nut connecting tube
Road during assembling, will take over the twisting portion of nut and the nut body of union nut clockwise after (screwing direction) rotation socket,
Twisting portion is screwed clockwise using twisting tool, and the abutting step cooperation on the convex block and nut body in twisting portion, is pulled at this time
The portion of twisting pushes nut body and pipe joint locking, realizes that two connecting lines closely connect；(unscrewing direction) counterclockwise, twisting is pulled
During the portion of twisting, twisting portion is skidded off along skewed slot from nut body, and twisting portion is made to be detached with nut body, i.e., can not pass through twisting portion
Apply effective unscrewing torque to nut body, while the lateral surface of the nut body of union nut is cylindrical surface, due to lacking
Force application plane and the nut body that union nut can not be reversely screwed by twisting tool, so as to ensure that pipe fitting and take over spiral shell
Female non-dismountable property is avoided because accidentally dismounting leads to the generation of secondary refrigerant leakage accident, simple in structure, easy to operate, is processed into
This is low.
Preferably, the lateral surface in twisting portion is prismatic surface, convenient for passing through the lateral surface in twisting tool clamping twisting portion to pulling
The portion of twisting, which applies, screws power, realizes that pipe fitting is locked with union nut；It is further preferred that the lateral surface in twisting portion is hexagonal knot
Structure.
In addition, the Anti-dismantling union nut that the utility model above-mentioned technical proposal provides can also have following supplementary technology
Feature：
In the above-mentioned technical solutions, the skewed slot is that edge unscrews what direction gradually extended to the end face direction of the second end
Arc skewed slot, the abutting step is the plane for being parallel to the nut body axis；The convex block is along the pilot hole
The bar shaped convex block of axis direction extension.
Arc skewed slot is along direction is unscrewed gradually to the extension of the end face direction of second end, in this way when reversed screw is sleeved on nut sheet
During twisting portion on body, the bar shaped convex block in twisting portion can be caused to be skidded off from nut body along arc skewed slot, make twisting portion
It is detached with nut body, i.e., can not effective unscrewing torque be applied to nut body by twisting portion, reach the mesh of reversed tamper
's；It is the plane for being parallel to nut body axis to abut step, which can be as the stress of the bar shaped convex block in twisting portion
Clamp load torque is transmitted in face will pass through bar shaped convex block and the cooperation of the plane to nut body；Preferably, it is parallel to abut step
In nut body axis and penetrate through second end end face plane, in order to which bar shaped convex block is smoothly inserted at arc skewed slot, make
The socket for obtaining twisting portion and nut body is more convenient.
In the above-mentioned technical solutions, the skewed slot is that edge unscrews what direction gradually extended to the end face direction of the second end
Arc skewed slot, the abutting step include being parallel to the first plane of the nut body axis and positioned at the first plane phase
To the second plane of the end face side far from the second end, second plane is located at first plane edge and screws direction
Front side；The convex block includes the first protrusion extended along the axis direction of the pilot hole and one end edge by first protrusion
The second protrusion of direction extension is screwed, first protrusion with first plane for contacting, second protrusion is used
It is contacted in second plane.
It abuts step and screws the second plane that direction is located on front side of the first plane, such design including the first plane and edge
Compared to design of the step for a plane is abutted, the socket that can make twisting portion and nut body is more secured, is pulled convenient for passing through
The portion of twisting transmits effective clamp load torque to nut body, and makes the intensity higher of convex block, so as to bear larger clamp load torque,
Avoid what convex block twisted into two parts before nut body and pipe joint locking from happening.
In the above-mentioned technical solutions, the skewed slot is that edge unscrews what direction gradually extended to the end face direction of the second end
Spiral helicine hemispherical skewed slot, the hemispherical skewed slot form the abutting step, the abutting platform along the end for screwing direction
Rank is the semicircular planform for being parallel to the nut body axis；The convex block is that edge unscrews direction gradually to the twisting portion
The helical form convex block of the end face direction extension of one end, the helical form convex block are used for and the semicircle along the end for screwing direction
Plane contacts.
Skewed slot be along unscrewing the spiral helicine hemispherical skewed slot that direction gradually extends to the end face direction of second end, in this way when
When reversely screwing the twisting portion being sleeved on nut body, the helical form convex block in twisting portion can be caused along spiral helicine hemispherical
Skewed slot is skidded off from nut body, and twisting portion is made to be detached with nut body, i.e., nut body can not be applied with by twisting portion
The unscrewing torque of effect achievees the purpose that reversed tamper；Step is abutted to be formed in hemispherical skewed slot end and being parallel to nut sheet
The semicircular planform of body axis, the semicircular planform can be as the stress surfaces of the helical form convex block in twisting portion, will pass through
Helical form convex block and the cooperation of the semicircular planform transmit clamp load torque to nut body；Preferably, helical form convex block edge screws
The end in direction is semicircular planform, the semicircular planform formed in order to the end of helical form convex block with hemispherical skewed slot end
Fully contact.
In any of the above-described technical solution, the quantity of the skewed slot is two, and two skewed slots are along the nut body
Rotate in a circumferential direction it is symmetrical；The quantity of the convex block is two, and two convex blocks are symmetrical along rotating in a circumferential direction for the pilot hole.
In a manner that two convex blocks coordinate respectively with two skewed slots, with promoted twisting portion by convex block and skewed slot coordinate to
Nut body transmits the stationarity and reliability of clamp load torque.
In any of the above-described technical solution, the nut body is step, and the nut body is used for and the pipe
The outer diameter for the first end that connector is connected is more than for the outer diameter of the second end coordinated with the twisting portion.
Nut body is designed as step, and the outer diameter of first end is more than the outer diameter of second end, that is, is ensuring by pulling
The portion of twisting transmits enough clamp load torques to nut body, and pipe fitting and nut body is made to lock under the premise of connecting, reduces second
The size at end can correspondingly reduce the size in twisting portion in this way, in this way can also be by twisting into two parts spiral shell so as to reduce cost of manufacture
The second end of maternal body, the mode for detaching the first end of nut body and second end, achievees the purpose that Anti-dismantling.
Certainly, nut body can also be designed to generally cylindrical, i.e. the outer diameter of the first end of nut body and second
The outer diameter at end is identical, so that processing is more convenient, advantageously reduces manufacture cost.
In any of the above-described technical solution, the lateral surface in the twisting portion is prismatic surface；The pipe fitting include for
The external thread section that the nut body is connected and the twisting section for supplying twisting tool twisting, the lateral surface of the twisting section are
Prismatic surface.
The outer surface of the twisting section of pipe fitting is set as prismatic surface, and the outer surface in the twisting portion of union nut is set as prism
Face convenient for screwing the prismatic surface of pipe fitting and the prismatic surface of union nut simultaneously with two twisting tools, realizes pipe fitting with connecing
Pipe nut check；Preferably, the outer surface of the twisting section of pipe fitting is hexagonal structure, and the outer surface in the twisting portion of union nut is
Hexagonal structure.
In any of the above-described technical solution, the nut body be equipped with axially through mounting hole, the mounting hole packet
Include the internal thread segment for being connect with the pipe joint screw thread and for taking over the taper hole section connecting with horn mouth；The pipe connects
Head includes external thread section and the taper surface for being located at the external thread section end, and the external thread section connects with the internal thread segment screw thread
It connects, the taper surface contacts to form sealing with the horn mouth taken over.
When pipe fitting is locked with nut body, the horn mouth and the taper surface of pipe fitting taken over contact to form sealing,
It avoids generating secondary refrigerant leakage in the junction of the two, so that it is guaranteed that the fastness and leakproofness of pipeline connection.
The technical solution of the second aspect of the utility model provides a kind of tamper pipe connection device, including：Pipe fitting；With
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 the twisting portion of nut and the nut body of union nut clockwise after (screwing direction) rotation socket,
Twisting portion is screwed clockwise using twisting tool, and the abutting step cooperation on the convex block and nut body in twisting portion, is pulled at this time
The portion of twisting pushes nut body and pipe joint locking, realizes that two connecting lines closely connect；(unscrewing direction) counterclockwise, twisting is pulled
During the portion of twisting, twisting portion is skidded off along skewed slot from nut body, and twisting portion is made to be detached with nut body, i.e., can not pass through twisting portion
Apply effective unscrewing torque to nut body, while the lateral surface of the nut body of union nut is cylindrical surface, due to lacking
Force application plane and the nut body that union nut can not be reversely screwed by twisting tool, so as to ensure that pipe fitting and take over spiral shell
Female non-dismountable property is avoided because accidentally dismounting leads to the generation of secondary refrigerant leakage accident, simple in structure, easy to operate, is processed into
This is low.
Technical solution in terms of the third of the utility model provides a kind of air conditioner, including：Outdoor unit；And interior
Machine is connected with first to circulate for refrigerant on one in the outdoor unit and the indoor unit and takes over, and is connected on another
For second taking over for refrigerant circulation, described first take over and described second take between tamper described in Pass through above-mentioned technical proposal
Pipe connection device is unloaded to be connected.
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 the decomposition texture schematic diagram of Anti-dismantling pipe connection device described in the utility model one embodiment；
Fig. 2 is the dimensional structure diagram of nut body in Fig. 1；
Fig. 3 is the overlooking the structure diagram of nut body in Fig. 2；
Fig. 4 is the dimensional structure diagram in twisting portion in Fig. 1；
Fig. 5 is the decomposition texture schematic diagram of Anti-dismantling pipe connection device described in second embodiment of the utility model；
Fig. 6 is the dimensional structure diagram of nut body in Fig. 5；
Fig. 7 is the overlooking the structure diagram of nut body in Fig. 6；
Fig. 8 is the dimensional structure diagram in twisting portion in Fig. 5；
Fig. 9 is the decomposition texture schematic diagram of Anti-dismantling pipe connection device described in the utility model third embodiment；
Figure 10 is the dimensional structure diagram of nut body in Fig. 9；
Figure 11 is the dimensional structure diagram in twisting portion in Fig. 9.
Wherein, the correspondence in Fig. 1 to Figure 11 between reference numeral and component names is：
1 nut body, 10 mounting holes, 11 first ends, 12 second ends, 13 arc skewed slots, 131 planes, 14 arc skewed slots,
141 first planes, 142 second planes, 15 hemispherical skewed slots, 151 semicircular planforms, 2 twisting portions, 20 pilot holes, 21 prismatic surfaces,
22 strip convex blocks, 23 convex blocks, 231 first protrusions, 232 second protrusions, 24 helical form convex blocks, 241 semicircular planforms, 3 pipe fittings,
31 taper surfaces, 32 external thread sections, 33 twisting sections, 4 first take over, 41 horn mouths, 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.
1 to Figure 11 Anti-dismantling union nut of the description according to some embodiments of the utility model, tamper with reference to the accompanying drawings
Unload pipe connection device and air conditioner.
As shown in Figure 1 to 11, according to a kind of Anti-dismantling union nut of the utility model some embodiments offer, packet
It includes：Nut body 1 and twisting portion 2.
Specifically, twisting portion 2 and nut body 1 are two individual parts, nut body 1 include for 3 phase of pipe fitting
The first end 11 of connection and the second end 12 for coordinating with twisting portion 2；Wherein, the lateral surface of first end 11 is cylindrical surface, the
The lateral surface generally cylindrical surface at two ends 12, and edge is formed on the lateral surface of second end 12 and unscrews direction gradually to second end 12
The skewed slot that extends of end face direction, skewed slot forms along the end for screwing direction and abuts step, offer for second end in twisting portion 2
12 pilot holes 20 being inserted into, the hole wall of pilot hole 20 are equipped with and can be screwed with abutting step cooperation to the transmission of nut body 1
The convex block of torque.
The Anti-dismantling union nut that the utility model above-described embodiment provides, passes through pipe fitting 3 and union nut connecting tube
Road, during assembling, will take over the nut body 1 of the twisting portion 2 of nut and union nut, (screwing direction) rotation is socketed clockwise
Afterwards, twisting portion 2 is screwed clockwise using twisting tool, the convex block in twisting portion 2 is matched with the abutting step on nut body 1 at this time
It closes, twisting portion 2 pushes nut body 1 to be locked with pipe fitting 3, realizes that two connecting lines closely connect；(the i.e. side of unscrewing counterclockwise
To) twisting twisting portion 2 when, twisting portion 2 is skidded off along skewed slot from nut body 1, twisting portion 2 is made to be detached with nut body 1, i.e.,
Effective unscrewing torque, while the lateral surface of the nut body 1 of union nut can not be applied to nut body 1 by twisting portion 2
For cylindrical surface, the nut body 1 of union nut can not be reversely screwed by twisting tool due to lacking force application plane, so as to protect
The non-dismountable property of pipe fitting 3 and union nut has been demonstrate,proved, has been avoided because accidentally dismounting leads to the generation of secondary refrigerant leakage accident, structure letter
Single, easy to operate, processing cost is low.
In some embodiments of the utility model, as shown in Fig. 1, Fig. 5 and Fig. 9, the lateral surface in twisting portion 2 is prismatic surface
21；Pipe fitting 3 includes the external thread section 32 for being connected with nut body 1 and the twisting section for supplying twisting tool twisting
33, the lateral surface of twisting section 33 is prismatic surface.
The outer surface of the twisting section 33 of pipe fitting 3 is set as prismatic surface, and the outer surface in the twisting portion 2 of union nut is set as
Prismatic surface convenient for screwing the prismatic surface of pipe fitting 3 and the prismatic surface of union nut simultaneously with two twisting tools, realizes pipe fitting
3 lock with union nut；Preferably, the outer surface of the twisting section 33 of pipe fitting 3 be hexagonal structure, the twisting portion 2 of union nut
Outer surface be hexagonal structure.
In one embodiment of the utility model, as depicted in figs. 1 and 2, skewed slot is along unscrewing direction gradually to the
The arc skewed slot 13 of the end face direction extension at two ends 12, it is the plane 131 for being parallel to 1 axis of nut body to abut step；Such as Fig. 1
Shown in Fig. 4, convex block is the bar shaped convex block 22 extended along the axis direction of pilot hole 20.
Preferably, as shown in Figure 3 and Figure 4, the quantity of arc skewed slot 13 is two, and two arc skewed slots 13 are along nut body
1 rotate in a circumferential direction is symmetrical；The quantity of bar shaped convex block 22 is two, and two bar shaped convex blocks 22 rotate in a circumferential direction pair along pilot hole 20
Claim.
Arc skewed slot 13 is along direction is unscrewed gradually to the extension of the end face direction of second end 12, in this way when reversed screw is sleeved on spiral shell
During twisting portion 2 on maternal body 1, it can so that the bar shaped convex block 22 in twisting portion 2 is sliding from nut body 1 along arc skewed slot 13
Go out, twisting portion 2 is made to be detached with nut body 1, i.e., can not effective unscrewing torque be applied to nut body 1 by twisting portion 2, reached
To the purpose of reversed tamper；It is the plane 131 for being parallel to 1 axis of nut body to abut step, which can be used as twisting
The stress surface of bar shaped convex block 22 in portion 2 is transmitted with will pass through bar shaped convex block 22 and the cooperation of the plane 131 to nut body 1
Clamp load torque；Preferably, the plane 131 that step is the end face for being parallel to the axis of nut body 1 and penetrating through second end 12 is abutted,
In order to which bar shaped convex block 22 is smoothly inserted at arc skewed slot 13 so that twisting portion 2 and the socket of nut body 1 are more convenient；Using
The mode that two bar shaped convex blocks 22 coordinate respectively with two arc skewed slots 13, passes through bar shaped convex block 22 and arc to promote twisting portion 2
Shape skewed slot 13 coordinates the stationarity and reliability that clamp load torque is transmitted to nut body 1.
In second embodiment of the utility model, as shown in Figure 5 and Figure 6, skewed slot is along unscrewing direction gradually to the
The arc skewed slot 14 of the end face direction extension at two ends 12 abuts step and includes being parallel to the first plane 141 of 1 axis of nut body
And the second plane 142 of the end face side of second end 12 is relatively distant from positioned at the first plane 141, the second plane 142 is located at first
Plane 141 is along the front side for screwing direction；As shown in Figure 5 and Figure 8, convex block 23 includes extend along the axis direction of pilot hole 20 the
One protrusion 231 and by the first protrusion 231 one end along the second protrusion 232 for screwing direction extension, the first protrusion 231 is used for and the
One plane 141 contacts, the second protrusion 232 is used to contact with the second plane 142.
Preferably, as shown in Figure 7 and Figure 8, the quantity of arc skewed slot 14 is two, and two arc skewed slots 14 are along nut body
1 rotate in a circumferential direction is symmetrical；The quantity of convex block 23 is two, and two convex blocks 23 are symmetrical along rotating in a circumferential direction for pilot hole 20.
It abuts step and includes the first plane 141 and the second plane 142 being located on front side of the first plane 141 along direction is screwed,
Such design can make the socket of twisting portion 2 and nut body 1 more firm compared to design of the step for a plane is abutted
Gu transmitting effective clamp load torque to nut body 1 convenient for passing through twisting portion 2, and make the intensity higher of convex block, so as to bear
Larger clamp load torque avoids what convex block twisted into two parts before nut body 1 and pipe fitting 3 are locked from happening；Using two
The mode that convex block 23 coordinates respectively with two arc skewed slots 14, is coordinated with promoting twisting portion 2 by convex block 23 and arc skewed slot 14
The stationarity and reliability of clamp load torque are transmitted to nut body 1.
In the third embodiment of the utility model, as shown in Figure 9 and Figure 10, skewed slot is along unscrewing direction gradually to the
The spiral helicine hemispherical skewed slot 15 of the end face direction extension at two ends 12, hemispherical skewed slot 15 are formed along the end for screwing direction and are supported
Step is connect, it is the semicircular planform 151 for being parallel to 1 axis of nut body to abut step；As shown in figures 9 and 11, convex block is edge
Unscrew the helical form convex block 24 that direction gradually extends to the end face direction of the one end in twisting portion 2, helical form convex block 24 is along the side of screwing
To end be used to contact with semicircular planform 151.
Preferably, the quantity of hemispherical skewed slot 15 is two, two rotating in a circumferential direction along nut body 1 of hemispherical skewed slot 15
Symmetrically；The quantity of helical form convex block 24 is two, and two helical form convex blocks 24 are symmetrical along rotating in a circumferential direction for pilot hole 20.
Skewed slot is that edge unscrews the spiral helicine hemispherical skewed slot 15 that direction gradually extends to the end face direction of second end 12, this
Sample can cause the helical form convex block 24 in twisting portion 2 along spiral when reversely screwing the twisting portion 2 being sleeved on nut body 1
The hemispherical skewed slot 15 of shape is skidded off from nut body 1, and twisting portion 2 is made to be detached with nut body 1, i.e., can not pass through twisting portion 2
Effective unscrewing torque is applied to nut body 1, achievees the purpose that reversed tamper；Step is abutted to be formed in hemispherical skewed slot 15
End and the semicircular planform 151 for being parallel to 1 axis of nut body, which can be as the spiral shell in twisting portion 2
The stress surface of shape convex block 24 being revolved, being transmitted with will pass through helical form convex block 24 and the cooperation of the semicircular planform 151 to nut body 1
Clamp load torque；Preferably, helical form convex block 24 is along the end in direction is screwed as semicircular planform 241, in order to helical form convex block
The semicircular planform 151 that 24 end is formed with 15 end of hemispherical skewed slot fully contacts；Using two helical form convex blocks
24 modes coordinated respectively with two hemispherical skewed slots 15, pass through helical form convex block 24 and hemispherical skewed slot to promote twisting portion 2
15 coordinate the stationarity and reliability that clamp load torque is transmitted to nut body 1.
In some embodiments of the utility model, as shown in Fig. 2, Fig. 6 and Figure 10, nut body 1 is step, and spiral shell
Maternal body 1 be used for the outer diameter of first end 11 that is connected with pipe fitting 3 be more than for the second end 12 that coordinate with twisting portion 2 outside
Diameter.
Nut body 1 is designed as step, and the outer diameter of first end 11 is more than the outer diameter of second end 12, that is, is ensuring to lead to
It crosses twisting portion 2 and enough clamp load torques is transmitted to nut body 1, pipe fitting 3 and nut body 1 is made to lock under the premise of connecting,
Reduce the size of second end 12, the size in twisting portion 2 can be correspondingly reduced in this way, so as to reduce cost of manufacture, may be used also in this way
With the second end 12 by twisting into two parts nut body 1, the mode that the first end 11 of nut body 1 is made to be detached with second end 12 reaches
The purpose of Anti-dismantling.
Certainly, nut body 1 can also be designed to generally cylindrical, i.e., the outer diameter of the first end 11 of nut body 1 with
The outer diameter of second end 12 is identical, so that processing is more convenient, advantageously reduces manufacture cost.
In some embodiments of the utility model, as shown in Fig. 1, Fig. 5 and Fig. 9, nut body 1 be equipped with axially through
Mounting hole 10, mounting hole 10 include for the internal thread segment that is threadedly coupled with pipe fitting 3 and for 41 company of taking over of horn mouth
The taper hole section connect；Pipe fitting 3 includes external thread section 32 and is located at the taper surface 31 of 32 end of external thread section, external thread section 32 with
Internal thread segment is threadedly coupled, taper surface 31 is abutted with taking over the horn mouth 41 of (such as Fig. 1, Fig. 5 and the first take over 4 shown in Fig. 9)
Cooperatively form sealing.
When pipe fitting 3 is locked with nut body 1, the horn mouth 41 and the taper surface 31 of pipe fitting 3 taken over contact shape
It into sealing, avoids generating secondary refrigerant leakage in the junction of the two, so that it is guaranteed that the fastness and leakproofness of pipeline connection.
The embodiment of the second aspect of the utility model provides a kind of tamper pipe connection device, including：Pipe fitting 3 and upper
State the tamper union nut of any embodiment.
The tamper pipe connection device that the utility model above-described embodiment provides, by pipe fitting 3 and union nut connecting line,
During assembling, after will take over the twisting portion 2 of nut and nut body 1 (screwing direction) clockwise rotation socket of union nut,
Twisting portion 2 is screwed clockwise using twisting tool, the convex block in twisting portion 2 coordinates with the abutting step on nut body 1 at this time,
Twisting portion 2 pushes nut body 1 to be locked with pipe fitting 3, realizes that two connecting lines closely connect；(direction is unscrewed) counterclockwise to pull
When twisting twisting portion 2, twisting portion 2 is skidded off along skewed slot from nut body 1, and twisting portion 2 is made to be detached with nut body 1, i.e., can not
Effective unscrewing torque applies nut body 1, while the lateral surface of the nut body 1 of union nut is circle by twisting portion 2
Cylinder can not reversely screw the nut body 1 of union nut, so as to ensure that due to lacking force application plane by twisting tool
The non-dismountable property of pipe fitting 3 and union nut is avoided because accidentally dismounting leads to the generation of secondary refrigerant leakage accident, simple in structure,
Easy to operate, processing cost is low.
Embodiment in terms of the third of the utility model provides a kind of air conditioner, including：Outdoor unit and indoor unit, room
The first take over 4 circulated for refrigerant is connected on one in outer machine and indoor unit, is connected with what is circulated for refrigerant on another
Second take over 5 is connected between first take over 4 and the second take over 5 by the Anti-dismantling pipe connection device of above-described embodiment.
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 Anti-dismantling union nut that the utility model embodiment provides, is connected by pipe fitting and union nut
It takes over road, during assembling, will take over the twisting portion of nut and nut body (screwing direction) rotary sleeve clockwise of union nut
After connecing, twisting portion is screwed clockwise using twisting tool, and the abutting step on the convex block and nut body in twisting portion is matched at this time
It closes, twisting portion pushes nut body and pipe joint locking, realizes that two connecting lines closely connect；(direction is unscrewed) counterclockwise to pull
When twisting twisting portion, twisting portion is skidded off along skewed slot from nut body, and twisting portion is made to be detached with nut body, i.e., can not be by pulling
The portion of twisting applies nut body effective unscrewing torque, while the lateral surface of the nut body of union nut is cylindrical surface, due to
Lack force application plane and the nut body of union nut can not be reversely screwed by twisting tool, so as to ensure that pipe fitting with connecing
The non-dismountable property of pipe nut is avoided because accidentally dismounting leads to the generation of secondary refrigerant leakage accident, simple in structure, easy to operate, is added
Work is at low cost.
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 Anti-dismantling union nut, which is characterized in that including：
Nut body；With
Twisting portion, the twisting portion and the nut body are two individual parts, and the nut body includes connecing with pipe
The first end that head is connected and the second end for coordinating with the twisting portion；
Wherein, the lateral surface of the first end is cylindrical surface, the lateral surface generally cylindrical surface of the second end, and described second
It is formed on the lateral surface at end along the skewed slot that direction is gradually extended to the end face direction of the second end is unscrewed, the skewed slot edge is revolved
The end in tight direction, which is formed, abuts step, and the pilot hole being inserted into for the second end, the assembling are offered in the twisting portion
The hole wall in hole be equipped with can with it is described abuts step cooperation with to the nut body transmission clamp load torque convex block.
2. Anti-dismantling union nut according to claim 1, which is characterized in that
The skewed slot is that edge unscrews the arc skewed slot that direction gradually extends to the end face direction of the second end, the abutting step
To be parallel to the plane of the nut body axis；
The convex block is the bar shaped convex block extended along the axis direction of the pilot hole.
3. Anti-dismantling union nut according to claim 1, which is characterized in that
The skewed slot is that edge unscrews the arc skewed slot that direction gradually extends to the end face direction of the second end, the abutting step
Including being parallel to the first plane of the nut body axis and the end of the second end being relatively distant from positioned at first plane
Second plane of face side, second plane are located at first plane along the front side for screwing direction；
The convex block includes the first protrusion extended along the axis direction of the pilot hole and one end edge by first protrusion
The second protrusion of direction extension is screwed, first protrusion with first plane for contacting, second protrusion is used
It is contacted in second plane.
4. Anti-dismantling union nut according to claim 1, which is characterized in that
The skewed slot is that edge unscrews the spiral helicine hemispherical skewed slot that direction gradually extends to the end face direction of the second end, institute
It states hemispherical skewed slot and forms the abutting step along the end for screwing direction, the abutting step is is parallel to the nut body
The semicircular planform of axis；
The convex block is that edge unscrews the helical form convex block that direction gradually extends to the end face direction of the one end in the twisting portion, described
Helical form convex block is used to contact with the semicircular planform along the end for screwing direction.
5. Anti-dismantling union nut according to any one of claim 1 to 4, which is characterized in that
The quantity of the skewed slot is two, and two skewed slots are symmetrical along rotating in a circumferential direction for the nut body；The convex block
Quantity is two, and two convex blocks are symmetrical along rotating in a circumferential direction for the pilot hole.
6. Anti-dismantling union nut according to any one of claim 1 to 4, which is characterized in that
The nut body is step, and the outer diameter of first end of the nut body for being connected with the pipe fitting is big
In for the outer diameter of the second end coordinated with the twisting portion.
7. Anti-dismantling union nut according to any one of claim 1 to 4, which is characterized in that
The lateral surface in the twisting portion is prismatic surface；
The pipe fitting is including the external thread section for being connected with the nut body and for pulling for twisting tool twisting
Section is twisted, the lateral surface of the twisting section is prismatic surface.
8. Anti-dismantling union nut according to any one of claim 1 to 4, which is characterized in that
The nut body be equipped with axially through mounting hole, the mounting hole includes for being connect with the pipe joint screw thread
Internal thread segment and for taking over the taper hole section connecting with horn mouth；
The pipe fitting includes external thread section and is located at the taper surface of the external thread section end, the external thread section with it is described interior
Thread segment is threadedly coupled, the taper surface contacts to form sealing with the horn mouth taken over.
9. a kind of Anti-dismantling pipe connection device, which is characterized in that including：
Pipe fitting；With
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；With
Indoor unit is connected with first to circulate for refrigerant on one in the outdoor unit and the indoor unit and takes over, another
On be connected with second to circulate for refrigerant and take over, described first take over and described second take between by such as claim 9 institute
The Anti-dismantling pipe connection device stated is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617407.4U CN207470951U (en) | 2017-11-28 | 2017-11-28 | Anti-dismantling union nut, Anti-dismantling pipe connection device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721617407.4U CN207470951U (en) | 2017-11-28 | 2017-11-28 | Anti-dismantling union nut, Anti-dismantling pipe connection device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470951U true CN207470951U (en) | 2018-06-08 |
Family
ID=62258916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721617407.4U Active CN207470951U (en) | 2017-11-28 | 2017-11-28 | Anti-dismantling union nut, Anti-dismantling pipe connection device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470951U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980482A (en) * | 2018-09-18 | 2018-12-11 | 德清恒升管件有限公司 | A kind of Petrochemical Pipe Joints of anti-dropout |
| WO2020088372A1 (en) * | 2018-10-29 | 2020-05-07 | 宁波奥克斯电气股份有限公司 | Removal-proof connector, connector assembly, and air conditioner |
| JP2021110445A (en) * | 2020-01-16 | 2021-08-02 | 彩乃 多田 | Assembly member |
| CN113446444A (en) * | 2020-03-24 | 2021-09-28 | 浙江三花智能控制股份有限公司 | Pipeline connecting device |
| WO2021208830A1 (en) * | 2020-04-15 | 2021-10-21 | 浙江盾安人工环境股份有限公司 | Anti-disassembly joint and anti-disassembly joint assembly |
| WO2021249209A1 (en) * | 2020-06-09 | 2021-12-16 | 浙江盾安人工环境股份有限公司 | Anti-disassembly connector, anti-disassembly connection assembly, and air conditioner |
| WO2022083640A1 (en) * | 2020-10-22 | 2022-04-28 | 浙江盾安人工环境股份有限公司 | Anti-disassembly connector and anti-disassembly connecting assembly |
-
2017
- 2017-11-28 CN CN201721617407.4U patent/CN207470951U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980482A (en) * | 2018-09-18 | 2018-12-11 | 德清恒升管件有限公司 | A kind of Petrochemical Pipe Joints of anti-dropout |
| WO2020088372A1 (en) * | 2018-10-29 | 2020-05-07 | 宁波奥克斯电气股份有限公司 | Removal-proof connector, connector assembly, and air conditioner |
| JP2021110445A (en) * | 2020-01-16 | 2021-08-02 | 彩乃 多田 | Assembly member |
| CN113446444A (en) * | 2020-03-24 | 2021-09-28 | 浙江三花智能控制股份有限公司 | Pipeline connecting device |
| WO2021208830A1 (en) * | 2020-04-15 | 2021-10-21 | 浙江盾安人工环境股份有限公司 | Anti-disassembly joint and anti-disassembly joint assembly |
| WO2021249209A1 (en) * | 2020-06-09 | 2021-12-16 | 浙江盾安人工环境股份有限公司 | Anti-disassembly connector, anti-disassembly connection assembly, and air conditioner |
| EP4145032A4 (en) * | 2020-06-09 | 2023-06-07 | Zhejiang Dunan Artificial Environment Co., Ltd. | Anti-disassembly connector, anti-disassembly connection assembly, and air conditioner |
| WO2022083640A1 (en) * | 2020-10-22 | 2022-04-28 | 浙江盾安人工环境股份有限公司 | Anti-disassembly connector and anti-disassembly connecting assembly |
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