Storage pressure tests fast connecting joint
Technical field
The utility model relates to gas cylinder connector fields, test fast connecting joint in particular to a kind of storage pressure.
Background technique
Currently, PZ27.8 external screw thread is arranged in jointing one end of storage pressure test, when assembly, external screw thread winds raw material
Band is connect with bottle neck PZ27.8 internal screw thread, controls torque about 280N*m with torque wrench, the connector other end is connect with high-pressure hose.
Have the disadvantage in that 1. winding raw material bands are time-consuming, raw material band is easily accessible bottle body and pollutes;2. being sealed by screw thread itself, adopt
PZ27.8 screw thread tighten with torque wrench time-consuming and laborious;3. rotation is generated for bottle body when preventing from turning PZ27.8 screw thread,
Bottle body need to be fixed, time-consuming, complex procedures, equally, when dismantling connection connector, it is also desirable to fixed bottle body, it is time-consuming and laborious.
Utility model content
The purpose of this utility model is to provide a kind of storage pressures to test fast connecting joint, without using raw material band,
It, being capable of the erection joint of fast power-saving ground without fixed bottle body without torque wrench.
The embodiments of the present invention are achieved in that
A kind of storage pressure test fast connecting joint, including centre pipe, centre pipe are successively arranged with washer compression
Block, rubber washer, plug and thrust ball bearing, centre pipe are equipped with joint connection close to one end of thrust ball bearing;Washer
Compact heap, rubber washer are placed in bottle neck, and plug is connect close to one end of rubber washer with bottle neck inner thread, thrust ball bearing
Bearing block set is installed, bearing block set is threadedly coupled with plug.
Further, plug is equipped with block set connecting groove far from one end of bottle neck, and bearing block set one end is connected equipped with block set
Convex block, block set connection convex block are threadedly coupled with block set connecting groove;The bearing block set other end is equipped with bearing installation groove, thrust ball
Bearing is embedded at bearing installation groove, and centre pipe is equipped with the bearing positioning component for pushing against thrust ball bearing.
Further, bearing positioning component includes that bearing compresses piece and bearing fastening plain cushion, and bearing compresses piece fixation and is arranged
In centre pipe, bearing compresses piece and is embedded at bearing installation groove, and it is convex far from block set connection that bearing compresses piece and thrust ball bearing
One end of block abuts, and bearing compresses end wall of the piece far from thrust ball bearing and flushes with the end wall of bearing block set;Joint connection
Outer diameter is less than the diameter of bearing installation groove, and bearing fastening plain cushion is sheathed on joint connection and by fastening bolt and bearing holder (housing, cover)
Seat is detachably connected.
Further, centre pipe is also arranged with compression plain washer between rubber washer and washer compact heap.
Further, outer wall of the centre pipe close to one end of rubber washer is equipped with screw thread, and washer compact heap is using compression
Nut, clamp nut are threadedly coupled with centre pipe.
It further, further include conversion head and conversion head connector, joint connection is equipped with far from one end of thrust ball bearing
Connector connecting groove, conversion head connector one end are threadedly coupled with connector connecting groove, and the other end of conversion head connector installs conversion
Head.
Further, the other end of conversion head connector is equipped with conversion head connecting cylinder, conversion head connecting cylinder and conversion head connector
It is vertically arranged, conversion head is inserted in conversion head connecting cylinder, and conversion head has the conversion head external connection end for protruding from conversion head connecting cylinder
End is dismounted with conversion head, the outer diameter of conversion head external connection end is greater than the internal diameter of conversion head connecting cylinder, and conversion head dismounts end removably
Equipped with dismounting nut.
Further, O-ring seals are equipped between conversion head and conversion head connecting cylinder.
Further, which is characterized in that rubber washer is provided with multiple.
Further, plug uses PZ27.8 external screw thread close to the side of rubber washer, and bottle neck inner wall is using in PZ27.8
Screw thread.
The beneficial effect of the utility model embodiment is: compared to the mode sealed by screw thread itself, the utility model
Storage pressure tests fast connecting joint, and it is to play connection function, and sealing function is then main that plug is threadedly coupled only with bottle neck
It is to be realized by the way that the rubber washer that can be extruded is arranged on the inside of plug, it is only necessary to which two steps, that is, mountable are not necessarily in installation process
Using raw material band, without torque wrench, fixed bottle body is not necessarily to when installing, dismantling, it is time saving and energy saving, and raw material is avoided to bring into
Enter bottle body to pollute.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the cross-sectional view that the storage pressure that the utility model embodiment 1 provides tests fast connecting joint.
Icon: 100- centre pipe, 110- joint connection, 111- connector connecting groove, 210- clamp nut, 220- rubber
Rubber gasket, 230- compression plain washer, 300- plug, 310- block set connecting groove, 400- thrust ball bearing, 500- bearing block set,
510- block set connection convex block, 520- bearing installation groove, 530- bearing positioning component, 531- bearing compress piece, and 532- bearing is tight
Gu plain cushion, 533- fastening bolt, 600- bottle neck, 700- conversion head, 710- conversion head external connection end, 720- conversion head dismount end,
730- dismounts nut, 800- conversion head connector, 810- conversion head connecting cylinder, 820-O shape sealing ring.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
Term " parallel ", " vertical " etc. are not offered as requiring component absolute parallel or vertical, but can be slightly tilted.Such as
" parallel " only refers to that its direction is more parallel with respect to for " vertical ", is not that the expression structure has to be substantially parallel, and
It is that can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected;It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
It is logical.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of storage pressures to test fast connecting joint, including centre pipe 100, in
Cardiac catheter 100 is successively arranged with washer compact heap, rubber washer 220, plug 300 and thrust ball bearing 400, centre pipe 100
Joint connection 110 is equipped with close to one end of thrust ball bearing 400.Washer compact heap, rubber washer 220 are placed in bottle neck 600,
Plug 300 is connect close to one end of rubber washer 220 with 600 inner thread of bottle neck, and thrust ball bearing 400 is equipped with bearing block set
500, bearing block set 500 is threadedly coupled with plug 300.The outer wall of bearing block set 500 and the outer wall of plug 300 carry out at annular knurl
Reason, convenient for holding.Plug 300 uses PZ27.8 external screw thread close to the side of rubber washer 220, and 600 inner wall of bottle neck uses
PZ27.8 internal screw thread, PZ27.8 are the dedicated taper pipe threads of high-pressure bottle gas cylinder, meet industry standard, production easy to process.
Before the utility model storage pressure tests fast connecting joint installation, centre pipe 100, washer compact heap, rubber
Washer 220, plug 300, thrust ball bearing 400 and bearing block set 500 are the state being pre-assembled.When installation, 1. hand is held
Plug 300, forward direction (close to the direction of bottleneck) rotation plug 300, screws in bottle neck 600 for one end, until feel is to slightly tight
It can stop screwing in, 2. right-hand man holds plug 300 and bearing block set 500 respectively, keeps plug 300 motionless, reversed (far from bottleneck
Direction) swivel bearing block set 500, until feel is to slightly tight, during this, under the action of thrust ball bearing 400, bearing holder (housing, cover)
Seat 500 can be rotated centered on centre pipe 100, and centre pipe 100 is drawn to the direction far from bottleneck, and washer compact heap squeezes
Pressure rubber washer 220 is bonded with 600 inner wall of bottle neck.In boost process, the pressure in gas cylinder can squeeze rubber washer 220, so that
Sealing is realized in the deformation of rubber washer 220.In the present embodiment, rubber washer 220 be provided with it is multiple, realize it is multi-stage sealed, improve it is close
Seal effect.Compared to the mode sealed by screw thread itself, the utility model storage pressure tests fast connecting joint, plug
300 be threadedly coupled with bottle neck 600 be only play connection function, and sealing function then mainly by being arranged on the inside of plug 300
What the rubber washer 220 that can be extruded was realized, it is only necessary to two steps, that is, mountable, without using raw material band in installation process, without borrowing
Torque wrench is helped, fixed bottle body is not necessarily to when installing, dismantling, it is time saving and energy saving, and avoid raw material band from entering bottle body and pollute.
In the present embodiment, the specific connection relationship of plug 300, thrust ball bearing 400 and bearing block set 500 are as follows: plug 300
One end far from bottle neck 600 is equipped with block set connecting groove 310, and 500 one end of bearing block set is equipped with block set and connects convex block 510, block set
Connection convex block 510 is threadedly coupled with block set connecting groove 310.In the other embodiments of the utility model, bearing block set and stifled
Head can also be by the way of other threaded connections, for example, groove, plug setting and bearing block set groove spiral shell is arranged in bearing block set
The modes such as convex block of line connection, if bearing block set during being threadedly engaged with plug, can be to the direction far from bottle neck
Movement.500 other end of bearing block set is equipped with bearing installation groove 520, and thrust ball bearing 400 is embedded at bearing installation groove
520, centre pipe 100 is equipped with the bearing positioning component 530 for pushing against thrust ball bearing 400.
In the present embodiment, the specific structure of bearing positioning component 530 are as follows: bearing positioning component 530 includes that bearing compresses piece
531 and bearing fasten plain cushion 532, bearing compress 531 fixing sleeve of piece be set to centre pipe 100, bearing compress piece 531 be embedded at axis
Installation groove 520 is held, bearing compresses piece 531 to abut with one end that thrust ball bearing 400 connect convex block 510 far from block set, bearing
End wall of the piece 531 far from thrust ball bearing 400 is compressed to flush with the end wall of bearing block set 500.The outer diameter of joint connection 110 is small
In the diameter of bearing installation groove 520, bearing fastening plain cushion 532 is sheathed on joint connection 110 and by fastening bolt 533
It is detachably connected with bearing block set 500, bearing fastening plain cushion 532 extends partially into the outside of installation groove, for pushing against bearing
Piece 531 is compressed, realizes the installation positioning of thrust ball bearing 400.In the other embodiments of the utility model, bearing positioning can also
To use other way, for example, one side wall is fixedly connected with bearing block set by the side wall at ball both ends, another side wall and center
Conduit is fixedly connected, as long as centre pipe can keep not rotating as far as possible in swivel bearing block set.
When washer compact heap squeezes rubber washer 220, in fact it could happen that extruding range is small, and rubber washer 220 deforms unevenly
The phenomenon that, in order to overcome the phenomenon, it is flat that centre pipe 100 is also arranged with compression between rubber washer 220 and washer compact heap
Washer 230 can expand extruding range, deform rubber washer 220 uniformly, improve sealing effect.
In the present embodiment, outer wall of the centre pipe 100 close to one end of rubber washer 220 is equipped with screw thread, washer compact heap
Using clamp nut 210, clamp nut 210 is threadedly coupled with centre pipe 100, and clamp nut 210 is detachable, is led convenient for center
The assembling of pipe 100 and other components.In the other embodiments of the utility model, washer compact heap can also use other knots
Structure, such as fixing sleeve are set to the tabletting etc. of centre pipe, as long as when centre pipe is pulled to the direction far from bottleneck, the pad
Circle compact heap can be mobile with centre pipe and squeezes rubber washer.
Further, the utility model storage pressure tests fast connecting joint, further includes that conversion head 700 and conversion head connect
First 800, joint connection 110 is equipped with connector connecting groove 111, conversion head connector 800 1 far from one end of thrust ball bearing 400
End is threadedly coupled with connector connecting groove 111, and is welded and reinforced, and the other end of conversion head connector 800 installs conversion head 700.Tool
Body, the other end of conversion head connector 800 is equipped with conversion head connecting cylinder 810, conversion head connecting cylinder 810 and conversion head connector 800
It is vertically arranged, conversion head 700 is inserted in conversion head connecting cylinder 810, conversion head connecting cylinder 810, conversion head connector 800 and conversion
First 700 connection.Conversion head 700 has the conversion head external connection end 710 for protruding from conversion head connecting cylinder 810 and conversion head dismounting end
720, the outer diameter of conversion head external connection end 710 is greater than the internal diameter of conversion head connecting cylinder 810, i.e. conversion head external connection end 710 can block and set
In 810 outer end of conversion head connecting cylinder, conversion head dismounts end 720 and is removably equipped with dismounting nut 730, conversion head 700 and conversion
O-ring seals 820 are equipped between head connecting cylinder 810.
Before the utility model storage pressure tests fast connecting joint installation, centre pipe 100, washer compact heap, rubber
Washer 220, plug 300, thrust ball bearing 400, bearing block set 500 and conversion head connector 800 are the state being pre-assembled.
Hose is first connected to conversion head external connection end 710, conversion head 700 is then inserted into conversion head connecting cylinder 810, is torn open in conversion head
Installation dismounting nut 730 in dress end 720 is simultaneously tightened, and the Fast Installation of hose can be realized.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.