CN201273540Y - Clamping type high-voltage tube connector - Google Patents
Clamping type high-voltage tube connector Download PDFInfo
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- CN201273540Y CN201273540Y CNU2008201639690U CN200820163969U CN201273540Y CN 201273540 Y CN201273540 Y CN 201273540Y CN U2008201639690 U CNU2008201639690 U CN U2008201639690U CN 200820163969 U CN200820163969 U CN 200820163969U CN 201273540 Y CN201273540 Y CN 201273540Y
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Abstract
The utility model relates to a pipe joint, in particular to a clamp type high pressure pipe joint. A novel pipe joint which is normally used at present has bigger installation force moment, and can not lock a connected pipe under high pressure easily, and the sealing performance is worse. The utility model provides the clamp type high pressure pipe joint, which comprises an elastic packing ring, a clamp type joint body, a clamp type functional nut and a clamp joint. The clamp type high pressure pipe joint is characterized in that the clamp type high pressure pipe joint also comprises a bowl-shaped sealed supporting frame, wherein the bowl-shaped sealed supporting frame is located between the clamp type joint body and the clamp type functional nut, the end port of one end in the clamp joint, which is connected with the clamp type functional nut, is equally divided into a plurality of petal bodies according to the circumference, gaps with equal distance are arranged between each two petal bodies, and the petal bodies are located in a through hole of the clamp type functional nut. The sealing performance of the pipe joint is safe and reliable, and pipes do not need welding, expanding and pre-installing. The installation is convenient and the outer diameter deviation demands to the connected pipe are lowered.
Description
Technical field
The utility model relates to a kind of pipe joint, relates in particular to a kind of clamp type high-pressure pipe joint.
Background technology
Pipe joint in pipe-work, use suitable extensively, though the kind of pipe joint is varied at present, be difficult to find a kind of high pressure resistant pipe joint simple in structure, easy to use.
As China Patent No. disclosed a kind of pipe joint in 200410047509.8 the patent, complex structure, the production cost height is installed inconveniently, and voltage endurance capability is little; And for example Chinese patent application number is to disclose a kind of pipe joint in 200410063112.8, be provided with in the joint and be used for clamping by the structure of connecting leg, this structure can be pinned to a certain extent by connecting leg, but being enclosed within by connecting leg outside the inner cylinder portion in this pipe joint, this just makes inner cylinder portion and existed caliber poor between connecting leg, the caliber that is inner cylinder portion is less, so, when fluid when being flowed to pipe joint by connecting leg, caliber reduces suddenly, make loss in head increase, that is to say the pressure head that has increased pipeline, make fluid carry required energy to increase, because the coupling mechanism force that the clamp structure of this pipe joint can provide is less, be difficult to bear high pressure again; Also having China Patent No. is to disclose a kind of pipe joint in 200410077095.3 the patent, its locating snap ring is provided with an inner blade at an end of opening, be used on a week of pipe, cutting out a Baltimore groove, this pipe joint installation and removal are very inconvenient, and to being had certain damageability by connecting leg; China Patent No. is also to disclose a kind of pipe joint in 200310101745.9 the patent, its complex structure, and the pressure that can bear is less, and the workload of installing is big, and tube outer wall is had certain damageability.
New tube joint commonly used at present has ferrule-type compression joint, is ISO 8434-1 as model; The flat seal socket-welding fitting is ISO 8434-2 as model; Flared fitting is ISO 8434-3 as model; Cone sealing pipe joint, as model is ISO 8434-4 etc., come the tube connector period of the day from 11 p.m. to 1 a.m with these pipe joints, what have need weld pipe, what have need carry out enlarging to pipe, and what also have need pre-install pipe, and mounting torque is all bigger, under high pressure be difficult to locking by connecting leg, sealing property is relatively poor.
Pipe joint generally all is to be used on the engineering, and be used for carrying fluid, the aforementioned tube joint is installed complicated, it is also quite complicated when this just means this pipe joint dismounting, if in a single day this pipe joint breaks down on engineering, need in time to repair, this has increased difficulty just for repairing work, and its consequence is changeable; Moreover, the aforementioned tube joint is to relatively poor by the lock ability of connecting leg, and on real engineering, the fluid pressure of carrying in the pipeline produces the situation of sudden change sometimes, these situations were avoided in service being difficult to of equipment, especially startup and shutdown the time, pressure jump is just more obvious, and this will make the pipe internal pressure increase, the situation that pipe joint place booster very easily occurs, cause fluid to leak, this is very dangerous in Chemical Manufacture, and the lock ability of visible pipe joint is very important; The 3rd, the pipe caliber that these pipe joints connect needs corresponding one by one, deviation to caliber is had relatively high expectations, because the pipe caliber deviation difference that different manufacturers is produced, make the air-tightness behind the pipe joint connection pipe be difficult to ensure, be subjected to some restrictions in concrete operations, the flexibility of matching between pipe and the pipe joint is not enough; The mounting torque that is exactly the aforementioned tube joint in addition is bigger, has caused a certain amount of wasting of resources.
In sum, there is drawback really in existing pipe joint, and these drawbacks very likely can cause tremendous loss.
Summary of the invention
The purpose of this utility model is to overcome above shortcomings in the prior art, and a kind of reasonable in design is provided, and easy to use and reliable clamp type high-pressure pipe joint is installed simply.
The technical scheme in the invention for solving the above technical problem is: a kind of clamp type high-pressure pipe joint, comprise elastic seal ring, clipping fittings body, clipping function nut and staple joint, wherein said clipping fittings body is connected with clipping function nut, its port is provided with holddown groove, described elastic seal ring is positioned at this holddown groove, described staple joint is connected with clipping function nut, be provided with through hole in the described clipping function nut, it is characterized in that: also comprise the bowl-type sealed support, described bowl-type sealed support is between clipping fittings body and clipping function nut, an end port that is connected with clipping function nut in the described staple joint is divided into several lobe lobe bodies by circumference, and all have equidistant breach between per two lobe lobe bodies, described lobe body is positioned at the through hole of clipping function nut.Make thus and the utility model and by the better tightness between connecting leg make the utility model stronger by the lock ability of connecting leg.
The lobe body of staple joint described in the utility model is matrix or convex, and this matrix or convex lobe body are arc surfaced, and the outer surface of described lobe body and the angle between the central symmetry axis are between 0-15 °; In the described matrix lobe body, the inwall radius of the radian at two ends is little, and middle inwall radius of the radian is big; In the described convex lobe body, the inwall radius of the radian of port is big, and the inwall radius of the radian of root is little.Make that thus applicable surface of the present utility model is wider, that adopts matrix lobe body in the utility model is called the incision type, and that adopts convex lobe body is called the anchor ear type.
In the axial cutting plane of matrix lobe body described in the utility model, be made up of two line segments and one section circular arc on the lobe body inwall, described two line segments are positioned at circular arc two ends and all tangent with circular arc, and described circular arc is a concave arc.Make the utility model to very strong coupling mechanism force being arranged thus, and can bear higher pressure by connecting leg.
In the axial cutting plane of matrix lobe body described in the utility model, be one section circular arc on the lobe body inwall, and this circular arc is a concave arc.Make the utility model to very strong coupling mechanism force being arranged thus by connecting leg.
In the axial cutting plane of convex lobe body described in the utility model, be made up of two line segments and one section circular arc on the lobe body inwall, described two line segments are positioned at circular arc two ends and all tangent with circular arc, and described circular arc is the dome arc.Make the utility model well to lock by connecting leg thus, and dismounting is than being easier to.
The through hole of clipping function nut mesopetalum body described in the utility model place end is a truncated cone-shaped, and the other end is cylindrical.Make staple joint better to lock by connecting leg thus.
The lobe body lobe number of staple joint described in the utility model is between 2-8 lobes.Make the utility model to being had stronger coupling mechanism force thus by connecting leg.
Clipping fittings body described in the utility model and clipping function nut be for being threaded, and described staple joint and clipping function nut are for being threaded.Make that thus installation is simple and convenient.
The angle that is become between the surface of truncated cone-shaped through hole described in the utility model and the central symmetry axis is between 15 °-30 °.Make the utility model that stronger coupling mechanism force is arranged thus.
The utility model compared with prior art has the following advantages and effect: the utility model adopts elastic seal ring sealing and the protection of bowl-type sealed support in order to guarantee better sealing, has guaranteed sealing function, can bear higher pressure.Bowl-type sealed support in the utility model has certain concave surface under natural extended configuration, this bowl-type sealed support is between clipping fittings body and clipping function nut, when clipping fittings body is tightened inwards along the internal thread of clipping function nut, the space of bowl-type sealed support periphery just can slowly reduce, the front end of clipping fittings body just can slowly touch the bowl-type sealed support finally, when clipping fittings body continues to tighten inwards, the bowl-type sealed support is being changed to cheese by bowl-type slowly just, to the end just with bowl-type sealed support being clipped between clipping fittings body and the clipping function nut tightly, this moment the bowl-type sealed support the concave surface elastic deformation after become cheese, and by tightly squeeze clipping fittings body with clipping function nut centre and embrace pipe.Because the concave surface of bowl-type sealed support is slowly to flatten along with slowly tightening of clipping fittings body, the surface that is to say the bowl-type sealed support is progressively contacted with clipping fittings body and clipping function nut, so the surface of bowl-type sealed support can well be fitted on clipping fittings body and the clipping function nut, prevents the appearance of fold.Promptly adopt the bowl-type sealed support can better guarantee air-tightness of the present utility model.
The front end of staple joint of the present utility model is divided into several lobe lobe bodies by circumference, and all dig equidistant breach between the two lobe lobe bodies, after being enclosed within the staple joint by connecting leg, staple joint is just by the past clipping function nut screwing clamping of screw thread, in the process that staple joint is tightened inward, the lobe body advances along the generatrix direction in the round table-like through hole, because the through hole of this part is round table-like, the aperture dwindles gradually, makes the lobe body be squeezed, along with constantly tightening of staple joint, it is more and more severe that the lobe body just is extruded, at this moment, the lobe body just is delivered to the power that is extruded by on connecting leg, and the lobe body just will have been locked by connecting leg firmly like this.Some is round table-like because in the through hole, the aperture dwindles gradually, more inside, it is severe more that the lobe body is extruded, that is to say that degree that the lobe body is extruded can be screwed into the difference of the degree of depth of clipping function nut and difference with staple joint, so, to being required and obviously to reduce, thereby can reduce production costs by the outside diameter tolerance of connecting leg.
The utility model is pressed staple joint to by the locking mode difference of connecting leg, can be divided into incision type and anchor ear type.In the clamp type high-pressure pipe joint of incision type, the lobe body of staple joint is a matrix, use the clamp type high-pressure pipe joint of the type to come the tube connector period of the day from 11 p.m. to 1 a.m, be enclosed within the staple joint by connecting leg, staple joint is constantly tightened inward along with the internal thread of clipping function nut, after the lobe body touches round table-like through hole, the inwall of lobe body will paste by connecting leg, the outer wall of lobe body will paste round table-like through hole, and along with constantly tightening of staple joint, the aperture of round table-like through hole constantly dwindles, to the end the inwall of lobe body being attached to by on connecting leg tightly just, the outer wall of lobe body is being attached on the round table-like through hole tightly just, thereby will be by the locking of connecting leg.The clamp type high-pressure pipe joint of incision type can be stronger locking by connecting leg, because the lobe body is squeezed in firmly by between connecting leg and the round table-like through hole, the inside and outside two sides of whole lobe body all is attached to fully by on connecting leg and the round table-like through hole, coupling mechanism force is stronger, can bear bigger pressure, the scope of operating pressure is 10-63MPa, and the clamp type high-pressure pipe joint of this type is suitable for use in the high pipeline of operating pressure.In the clamp type high-pressure pipe joint of anchor ear type, the lobe body of staple joint is a convex, be that lobe body inwall is to turning up, just as petal-shaped in full bloom, use the clamp type high-pressure pipe joint of the type to come the tube connector period of the day from 11 p.m. to 1 a.m, be enclosed within the staple joint by connecting leg, staple joint is constantly tightened inward along with the internal thread of clipping function nut, after the lobe body touches round table-like through hole, the front end of the inwall that turns up in the lobe body is just touched mutually with the surface of round table-like through hole, staple joint is twisted more inward, the aperture of round table-like through hole is just more little, this moment the lobe body to be subjected to the active force of round table-like through-hole surfaces just big more, this active force can resolve into radial effect power and axial force, this radial effect power is used for locking by connecting leg, this axial force is to turn on when being used for the screw thread of staple joint, be used for staple joint to the extrapolation, also Just because of this, the coupling mechanism force of the clamp type high-pressure pipe joint of the type is less than the incision type, the scope of general work pressure is 3.5-16MPa, but the staple joint of anchor ear type is subjected to an axial active force when tightening, this just helps unscrewing of staple joint and will be extracted by connecting leg, therefore the clamp type high-pressure pipe joint of the type can be used in by connecting leg and dismantle in the more frequent pipeline, both can bear high pressure, assembly and disassembly or retube has quickly and easily also reduced many workloads in the time of safe and reliable again.
Sealing function in the utility model is finished by clipping fittings body, clipping function nut, elastic seal ring and bowl-type sealed support, staple joint and clipping function nut play the effect of locking pipe, staple joint is because specific multi-clove type structure makes the assembling mounting torque greatly reduce, coupling mechanism force is big, fairly obvious for bigbore pipe effect especially, go for tube outer diameter 4-50mm by connecting leg.Advantages such as it is safe and reliable to the utlity model has sealing property, and pipe is exempted from welding, exempts from enlarging, exempted from prepackage, installs simply, easy to use and reliable, and mounting torque is little.On present pipe-work, use the utility model to connect pipe, can save many manpower, material resources and financial resources, and the most key be to bear high pressure, ensured the safety that fluid is carried.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the utility model embodiment.
Fig. 2 is the main TV structure schematic diagram of the utility model embodiment bowl-type sealed support.
Fig. 3 is A-A face sectional structure schematic diagram of Fig. 2.
Fig. 4 is the main TV structure schematic diagram of the clipping function nut of the utility model embodiment.
Fig. 5 is B-B face sectional structure schematic diagram of Fig. 4.
Fig. 6 is the split structural representation of the utility model embodiment 1.
Fig. 7 is the main TV structure schematic diagram of the utility model embodiment 1 staple joint.
Fig. 8 is C-C face sectional structure schematic diagram of Fig. 7.
Fig. 9 be embodiment 1 mesopetalum body through axially dissect and amplify after structural representation.
Figure 10 is the split structural representation of the utility model embodiment 2.
Figure 11 is the main TV structure schematic diagram of the utility model embodiment 2 staple joints.
Figure 12 is D-D face sectional structure schematic diagram of Figure 11.
Figure 13 be embodiment 2 mesopetalum bodies through axially dissect and amplify after structural representation.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Embodiment 1:
Referring to Fig. 1-Fig. 9, present embodiment is an incision type clamp type high-pressure pipe joint, comprises clipping fittings body 1, clipping function nut 2, staple joint 3, elastic seal ring 4 and bowl-type sealed support 5.Wherein clipping fittings body 1 comprises fittings body 11, holddown groove 12, external screw thread 13, fittings body through hole 14 and tube connector fixing hole 15, and the aperture of holddown groove 12, tube connector fixing hole 15 and fittings body through hole 14 reduces successively, external screw thread 13 is positioned at the end that fittings body 11 is connected with clipping function nut 2, holddown groove 12 is positioned at the end port that fittings body 11 is connected with clipping function nut 2, fittings body through hole 14 and tube connector fixing hole 15 all are positioned at fittings body 11, and holddown groove 12, tube connector fixing hole 15 and fittings body through hole 14 link to each other successively.
Bowl-type sealed support 5 comprises stake body 51 and support body through hole 52, shown in accompanying drawing 2 and accompanying drawing 3, straight line d is the central symmetry axis of bowl-type sealed support 5, under nature, the shape of bowl-type sealed support 5 such as same bowl that lacks the end, it has certain concave surface, the spherical radius of this concave surface is 12mm, the spherical radius of this concave surface is between 6-30mm in the utility model, and the wall thickness of bowl-type sealed support 5 is 1mm, and the wall thickness of the bowl-type sealed support 5 in the utility model is between 0.5-4mm.Support wire 501 and No. two support wire 502 all are positioned at the left side of bowl-type sealed support 5, and by central symmetry axis d symmetry, the extended line of a support wire 501 and No. two support wire 502 meets on the central symmetry axis d, that is to say that support wire 501, No. two support wire 502 and central symmetry axis d are three lines in the same plane, wherein the extended line angulation of a support wire 501 and No. two support wire 502 is 150 °, and above-mentioned angle is at 120 °-175 in the utility model.Between.
Annexation in the present embodiment between each parts is as follows: elastic seal ring 4 is positioned at the holddown groove 12 of clipping fittings body 1, bowl-type sealed support 5 is positioned at a screw thread mouth 24 of clipping function nut 2, clipping fittings body 1 is screwed on the internal thread 23 of clipping function nut 2 by external screw thread 13, bowl-type sealed support 5 is between clipping fittings body 1 and clipping function nut 2, staple joint 3 is screwed on No. two internal threads 25 of clipping function nut 2 by external screw thread 34, and the lobe body 32 of staple joint 3 is positioned at truncated cone-shaped through hole 222.
The action principle of present embodiment is as follows: when each parts does not also interconnect, passed collar aperture 35 in the staple joint 3 successively by connecting leg, through hole 22 in the clipping function nut 2, through hole in support body through hole 52 in the bowl-type sealed support 5 and the elastic seal ring 4, at last will be inside by the port locations of connecting leg by the tube connector fixing hole 15 in the clipping fittings body 1, promptly withstood on the tube connector fixing hole 15 in the clipping fittings body 1 by the mouth of pipe of connecting leg, prevent oversize or too short by the link of connecting leg, elastic seal ring 4 is fixed in the holddown groove 12 on the clipping fittings body 1, and bowl-type sealed support 5 is positioned at a screw thread mouth 24 of clipping function nut 2.Clipping fittings body 1 is screwed on the internal thread 23 of clipping function nut 2 by external screw thread 13, because bowl-type sealed support 5 is concave shape under nature, that is to say that at first the contact area between the bowl-type sealed support 5 and clipping fittings body 1 and clipping function nut 2 is smaller, along with constantly tightening of screw thread, the concave surface of bowl-type sealed support 5 just is driven plain gradually, in this process, contact area increase gradually between bowl-type sealed support 5 and clipping fittings body 1 and the clipping function nut 2, that is to say between the surface of bowl-type sealed support 5 and clipping fittings body 1 and the clipping function nut 2 and slowly fit, fit gradually along with constantly tightening of screw thread, this has just guaranteed that the surface of bowl-type sealed support 5 can be fitted on clipping fittings body 1 and the clipping function nut 2 very completely, avoid occurring fold, guaranteed good sealing, after clipping fittings body 1 is tightened on the clipping function nut 2, elastic seal ring 4 is squeezed firmly between clipping fittings body 1 and the clipping function nut 2, and concave surface originally is extruded the back elastic deformation and has become the plane, and promptly the surface of elastic seal ring 4 has been fitted on clipping fittings body 1 and the clipping function nut 2 fully.Elastic seal ring 4 and bowl-type sealed support 5 double protections are used for ensureing the sealing of present embodiment.
Staple joint 3 is screwed on No. two internal threads 25 of clipping function nut 2 by external screw thread 34, the inlet that the lobe body 32 of staple joint 3 is positioned at truncated cone-shaped through hole 222 goes out, be positioned at the collar aperture 35 of staple joint 3 by connecting leg, at first the inwall of lobe body 32 is and the touching that is had by the outer wall of connecting leg slightly, does not also have coupling mechanism force this moment.Because the aperture of truncated cone-shaped through hole 222 dwindles gradually, so along with constantly tightening of screw thread, the lobe body 32 of staple joint 3 has just entered in the truncated cone-shaped through hole 222, the outer wall of lobe body 32 touches the surface of truncated cone-shaped through hole 222, along with the aperture of truncated cone-shaped through hole 222 reduces gradually, the outer wall of lobe body 32 is constantly pushed by truncated cone-shaped through hole 222, the aperture that makes lobe body 32 be surrounded also constantly dwindles, at this moment, under the transfer function of power, the inwall of pintongs lobe body 32 has just wrapped in by on the outer tube wall of connecting leg, and since in an acute angle between line segment z in the lobe body 32 and the line segment x, make the front end of lobe body 32 can be good at cutting by between the inwall of sub-outer wall of connecting leg and truncated cone-shaped through hole 222.Along with screw thread continue tighten, lobe body 32 is just constantly shifted to less position, aperture in the truncated cone-shaped through hole 222, the aperture of truncated cone-shaped through hole 222 is more little, extruding force to lobe body 32 outer walls is just big more, same, the inwall of lobe body 32 is to also just big more by the coupling mechanism force of connecting leg, and along with constantly tightening of staple joint 3, the coupling mechanism force suffered by connecting leg just constantly increases.According to by the concrete condition of connecting leg, when staple joint 3 after being screwed to certain degree of depth on the clipping function nut 2, locked firmly by connecting leg by lobe body 32.
As from the foregoing, the sealing function of present embodiment is finished by clipping fittings body 1, clipping function nut 2, elastic seal ring 4 and 5 actings in conjunction of bowl-type sealed support; Present embodiment locking is realized by staple joint 3 and clipping function nut 2 by the function of connecting leg.
The utility model is applicable to and connects the pipe of tube outer diameter between 4-50mm that the scope of the operating pressure of incision type clamp type high-pressure pipe joint is between 10-63MPa.
Embodiment 2:
Referring to Fig. 1-Fig. 5, Figure 10-Figure 13, present embodiment is an anchor ear type clamp type high-pressure pipe joint, comprises clipping fittings body 1, clipping function nut 2, staple joint 3, elastic seal ring 4 and bowl-type sealed support 5.Staple joint 3 in the present embodiment is an anchor ear type staple joint, comprise joint 31, lobe body 36, breach 33, external screw thread 34 and collar aperture 35, shown in accompanying drawing 11-accompanying drawing 13, straight line b is the central symmetry axis of staple joint 3, its mesopetalum body 36 comprises No. five lobe bodies 361, No. six lobe bodies 362, No. seven lobe bodies 363 and No. eight lobe bodies 364, divided pintongs lobe body 36 in the present embodiment, the utility model can be provided with lobe body lobe number between 2-8 lobes.Lobe body 36 is an arc surfaced, line segment j, line segment k and circular arc m are lobe body 36 line on the inwall in axial cutting plane, line segment j and line segment k are positioned at the two ends of circular arc m, and line segment j and line segment k are all tangent with circular arc m, and the port inner wall radius of the radian of lobe body 36 is big, the inwall radius of the radian of root is little, line segment j links to each other with the port of lobe body 36, and line segment k links to each other with the root of lobe body 36, promptly in lobe body 36, on the direction of section j, circular arc m along the line and line segment k, radius of the radian reduces successively.The angle of the extended line of line segment j and central symmetry axis b is 30 °, and the extended line of the utility model middle conductor j and the angle of central symmetry axis b are between 5 °-45 °.The radius of the radian of circular arc m is 1mm, and the radius of the radian of circular arc m is between 0.2-3mm in the utility model.Exterior line 305 is lobe body 36 line on the outer wall in axial cutting plane, and the angle between exterior line 305 and the central symmetry axis is 4 °, and the angle in the utility model between exterior line 305 and the central symmetry axis is between 0-15 °.Other structures in the staple joint 3 all with embodiment 1 in identical, can be referring to embodiment 1.
Miscellaneous part structure in the present embodiment also all with embodiment 1 in identical, can be referring to embodiment 1.
Annexation in the present embodiment between each parts is also identical with embodiment 1, can be referring to embodiment 1.
In the action principle of present embodiment, identical by among position relation between connecting leg and each parts and the embodiment 1, the sealing function that forms with bowl-type sealed support 5 by clipping fittings body 1, clipping function nut 2, elastic seal ring 4 also with embodiment 1 in identical, all can be referring to embodiment 1.The locking of present embodiment is as follows by the principle of connecting leg: be enclosed within by connecting leg in the collar aperture 35 of staple joint 3, when staple joint 3 is also twisted to clipping function nut 2, inwall on the lobe body 36 of staple joint 3 contacts a minimum part with being had only by connecting leg, when staple joint 3 is screwed on No. two internal threads 25 of clipping function nut 2 by external screw thread 34, lobe body 36 is located in the truncated cone-shaped through hole 222 in the clipping function nut 2, because the inwall of lobe body 36 turns up, make the inclined-plane of lobe body 36 upper inside wall contact with the wall of truncated cone-shaped through hole 222, the part of the outer convex globoidal of lobe body 36 inwall bottoms with contacted by the outer tube wall of connecting leg.When staple joint 3 when clipping function nut 2 is tightened, lobe body 36 just advances to the inside of truncated cone-shaped through hole 222, because the aperture of truncated cone-shaped through hole 222 dwindles gradually, make lobe body 36 be subjected to the extruding force of truncated cone-shaped through hole 222 walls, because the inclined-plane of lobe body 36 upper inside wall contacts with the wall of truncated cone-shaped through hole 222, at staple joint 3 in the process that clipping function nut 2 is screwed into, just being equivalent to the part on this inclined-plane and the wall of truncated cone-shaped through hole 222 fits, the lobe body 36 that the wall that is to say truncated cone-shaped through hole 222 has blocked staple joint 3 continues to go deep into truncated cone-shaped through hole 222 inside, promptly there is a reaction force to stop staple joint 3 to continue to tighten, but the external world continues to apply external force twists staple joint 3 in clipping function nut 2, at this moment, small elastic deformation just takes place in the shape of lobe body 36, the inclined-plane of lobe body 36 upper inside wall continues to contact with the wall of truncated cone-shaped through hole 222, and the area of contact increases gradually, the outer convex globoidal of lobe body 36 inwall bottoms with also be to continue to contact by the outer tube wall of connecting leg, and the area of contact also is to increase gradually, in this process, should outer convex globoidal with regard to protruding bigger, just be equivalent to have a kind of external force to attempt with 36 bendings of lobe body.Because the aperture of truncated cone-shaped through hole 222 is constantly dwindling, so the aperture that lobe body 36 is surrounded also just diminishes gradually, so, the outer convex globoidal of lobe body 36 just will have been locked by connecting leg, along with staple joint 3 constantly is screwed in the clipping function nut 2, it is just severe more that lobe body 36 is subjected to the extruding of truncated cone-shaped through hole 222, just locked tightlyer by lobe body 36 by connecting leg.According to by the concrete condition of connecting leg, determine that staple joint 3 is screwed into the degree of depth of clipping function nut 2.
Some is contacted with the wall of truncated cone-shaped through hole 222 for the inwall of the lobe body 36 in the present embodiment, just be equivalent to lobe body 36 retainings on the wall of truncated cone-shaped through hole 222, this has just increased staple joint 3 and has been screwed into required power in the clipping function nut 2, also just because of the inwall of lobe body 36 some be that retaining is on the wall of truncated cone-shaped through hole 222, when staple joint 3 is back-outed in clipping function nut 2, lobe body 36 has a kind ofly releases the trend of clipping function nut 2 with staple joint 3, makes staple joint 3 and be easier to by the dismounting of connecting leg ratio.The clamp type high-pressure pipe joint of anchor ear type be suitable for use in that pipe needs often dismounting and the pipeline installed on, make pipe dismounting and install more convenient.The operating pressure of anchor ear type clamp type high-pressure pipe joint between 3.5-16MPa, by the external diameter scope of connecting leg between 4-50mm.
Through above-mentioned two embodiment as can be known, in incision type clamp type high-pressure pipe joint, lobe body 32 on the staple joint 3 is incisions at the truncated cone-shaped through hole 222 of clipping function nut 2 with by between the outer wall of connecting leg, the inwall that is to say lobe body 32 is fully with contacted by connecting leg, it is compressed in the wall of truncated cone-shaped through hole 222 and by between the outer wall of connecting leg, so just will have been locked by connecting leg, and very big of the power of locking; And in anchor ear type clamp type high-pressure pipe joint, lobe body 36 on the staple joint 3 is that anchor ear is at the truncated cone-shaped through hole 222 of clipping function nut 2 with between by the outer wall of connecting leg, that is to say that some is contacted with the wall of truncated cone-shaped through hole 222 in the inwall of lobe body 36, some is with contacted by the outer wall of connecting leg, and lobe body 36 is under the effect that is subjected to external force, the amplitude of distortion is bigger, make lobe body 36 that a thrust be arranged on the wall of truncated cone-shaped through hole 222, when staple joint 3 is dismantled from clipping function nut 2 than being easier to, be staple joint 3 and more convenient, that is to say in the anchor ear type clamp type high-pressure pipe joint more convenient by the installation and removal of connecting leg by the dismounting of connecting leg.In sum, incision type clamp type high-pressure pipe joint is to bigger by the coupling mechanism force of connecting leg, the dismounting of anchor ear type clamp type high-pressure pipe joint and install more conveniently, and the user can be as the case may be, select the clamp type high-pressure pipe joint that is fit to type for use, thereby reach the optimum efficiency of use.
The utility model is pressed staple joint to by the locking mode difference of connecting leg, and clamp type high-pressure pipe joint can be divided into incision type and anchor ear type, and wherein incision type is also referred to as the Q type, and the anchor ear type is also referred to as Type B.
In addition, need to prove, allly conceive equivalence or the simple change that described structure, feature and principle are done, be included in the protection domain of the utility model patent according to the utility model patent.
Claims (9)
1, a kind of clamp type high-pressure pipe joint, comprise elastic seal ring, clipping fittings body, clipping function nut and staple joint, wherein said clipping fittings body is connected with clipping function nut, its port is provided with holddown groove, described elastic seal ring is positioned at this holddown groove, described staple joint is connected with clipping function nut, be provided with through hole in the described clipping function nut, it is characterized in that: also comprise the bowl-type sealed support, this bowl-type sealed support is between clipping fittings body and clipping function nut, an end port that is connected with clipping function nut in the described staple joint is divided into several lobe lobe bodies by circumference, and all have equidistant breach between per two lobe lobe bodies, described lobe body is positioned at the through hole of clipping function nut.
2, clamp type high-pressure pipe joint according to claim 1, it is characterized in that: the lobe body of described staple joint is matrix or convex, this matrix or convex lobe body are arc surfaced, and the outer surface of described lobe body and the angle between the central symmetry axis are between 0-15 °; In the described matrix lobe body, the inwall radius of the radian at two ends is little, and middle inwall radius of the radian is big; In the described convex lobe body, the inwall radius of the radian of port is big, and the inwall radius of the radian of root is little.
3, clamp type high-pressure pipe joint according to claim 2, it is characterized in that: in the axial cutting plane of described matrix lobe body, be made up of two line segments and one section circular arc on the lobe body inwall, described two line segments are positioned at circular arc two ends and all tangent with circular arc, and described circular arc is a concave arc.
4, clamp type high-pressure pipe joint according to claim 2 is characterized in that: in the axial cutting plane of described matrix lobe body, be one section circular arc on the lobe body inwall, and this circular arc is a concave arc.
5, clamp type high-pressure pipe joint according to claim 2, it is characterized in that: in the axial cutting plane of described convex lobe body, be made up of two line segments and one section circular arc on the lobe body inwall, described two line segments are positioned at circular arc two ends and all tangent with circular arc, and described circular arc is the dome arc.
6, clamp type high-pressure pipe joint according to claim 1 is characterized in that: the through hole of described clipping function nut mesopetalum body place end is a truncated cone-shaped, and the other end is cylindrical.
7, clamp type high-pressure pipe joint according to claim 1 is characterized in that: the lobe body lobe number of described staple joint is between 2-8 lobes.
8, clamp type high-pressure pipe joint according to claim 1 is characterized in that: described clipping fittings body and clipping function nut be for being threaded, and described staple joint and clipping function nut are for being threaded.
9, clamp type high-pressure pipe joint according to claim 6 is characterized in that: the angle that is become between the surface of described truncated cone-shaped through hole and the central symmetry axis is between 15 °-30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201639690U CN201273540Y (en) | 2008-09-05 | 2008-09-05 | Clamping type high-voltage tube connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201639690U CN201273540Y (en) | 2008-09-05 | 2008-09-05 | Clamping type high-voltage tube connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273540Y true CN201273540Y (en) | 2009-07-15 |
Family
ID=40883887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201639690U Expired - Fee Related CN201273540Y (en) | 2008-09-05 | 2008-09-05 | Clamping type high-voltage tube connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201273540Y (en) |
-
2008
- 2008-09-05 CN CNU2008201639690U patent/CN201273540Y/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20140905 |
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