CN209164037U - A kind of crankcase throttling stopper structure of refrigeration compressor - Google Patents

Abstract

The utility model discloses a kind of crankcase of refrigeration compressor throttling stopper structures, including end cap plug, with plug outrigger, the end cap is fixedly connected by connection bolt with crankshaft box enclosure, and the upper surface of end cap is provided with through-hole, the through-hole and the gas vent of crankshaft box enclosure are located at same axis, and oily plug is set inside the through-hole, the lower section of the plug is provided with external screw thread, the interlude of plug runs through end cap and extends to the upper surface outer end of end cap, the upper end of plug is vertically installed with the symmetrical connecting rod in left and right, and plug is mounted in the central lumen of plug outrigger, the convenient screw thread that the utility model realizes plug by the way that plug outrigger is arranged is installed, replacement easy to disassemble simultaneously, practical value with higher.

Description

A kind of crankcase throttling stopper structure of refrigeration compressor

Technical field

The utility model relates to crankcase stopper structure field, the crankcase throttling plug of specially a kind of refrigeration compressor Structure.

Background technique

Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, is the heart of refrigeration system It is dirty.It is operated after compressing with piston to it, to row from the refrigerant gas of air intake duct sucking low-temp low-pressure by motor The refrigerant gas of high temperature and pressure is discharged in tracheae, power is provided for refrigeration cycle, to realize refrigeration cycle.

And the installation of the crankcase throttling plug of compressor generallys use the mode of interference installation, so that the peace that plug is firm Inside gas vent, such mounting means causes installation difficulty higher, and plug replacement not easy to disassemble, and is connected using screw thread It connects and plug is be easy to cause to rotate under the action of air-flow, so that plug falls off.

Utility model content

It is above-mentioned to solve the purpose of this utility model is to provide a kind of crankcase of refrigeration compressor throttling stopper structure The problem of being proposed in background technique.

To achieve the above object, the utility model provides the following technical solutions:

A kind of crankcase throttling stopper structure of refrigeration compressor, including end cap plug and plug outrigger, the end cap It is fixedly connected by connection bolt with crankshaft box enclosure, and the upper surface of end cap is provided with through-hole, the through-hole and crankshaft box enclosure Gas vent be located at same axis, and oily plug is set, the lower section of the plug is provided with external screw thread, plug inside the through-hole Interlude runs through end cap and extends to the upper surface outer end of end cap, and the upper end of plug is vertically installed with the symmetrical company in left and right Bar, and plug is mounted in the central lumen of plug outrigger, the connecting rod is fixedly welded with circle far from one end of plug central axis Arc turning handle, the circular arc turning handle are mounted on the upper surface of plug outrigger, and the upper end of the plug outrigger is provided with inner cavity, and this is interior The rear and front end of chamber is provided with limited block, and the left and right ends of plug outrigger is provided with symmetrical a pair of of the ear mount in left and right, blocks up The lower end of head outrigger is fixedly connected with sliding annulus, and the lower end surface fixing seal of the sliding annulus is welded with conical surface annulus, sliding Dynamic annulus is mounted on the end face through-hole wall of end cap, and the lower end surface of the conical surface annulus is provided with four that circumference array is distributed and stretches Contracting inner cavity, four flexible inner cavities are mounted on sliding bar, and the upper end of the sliding bar extends to the interior of flexible inner cavity Portion, the lower end of sliding bar are fixedly welded in crankshaft box enclosure, and the outer wall of sliding bar is socketed with spring.

Preferably, the upper surface outer diameter of the conical surface annulus is greater than the internal diameter of end cap upper surface through-hole, and the end cap leads to Hole is conic steps hole.

Preferably, the upper end of the spring is against the lower end surface of conical surface annulus.The lower end surface of spring is against crankshaft box enclosure Upper surface.

Preferably, the front and back axial end face of the circular arc turning handle is against respectively on the side of limited block.

Compared with prior art, the utility model has the beneficial effects that the utility model in the outer end of plug by being arranged One layer of plug outrigger, so that the screw thread installation that plug is realized；Using the circular arc turning handle of plug front end and the cooperation of limited block, so that Plug can not achieve rotation under the blocking of limited block, so that screw thread installation is more firm；Pass through stretching under setting tapered end face The position of plug outrigger is fixed in the cooperation of contracting inner cavity and sliding bar, realization；By the way that tapered end face annulus is arranged, realize to plug Outrigger moves up and down the control of position；By the way that spring is arranged, moving up and down for sliding annulus is realized, and then realize to plug just Victory disassembly.Compared with prior art, the convenient screw thread that the utility model realizes plug by the way that plug outrigger is arranged is installed, simultaneously Replacement easy to disassemble, practical value with higher.

Detailed description of the invention

Fig. 1 is the installation cross-sectional end view of the utility model；

Fig. 2 is the stopper structure schematic diagram of the utility model；

Fig. 3 is the plug outrigger structural schematic diagram of the utility model；

Fig. 4 is the plug outrigger side view of the utility model.

In figure: 1 end cap, 2 crankshaft box enclosures, 3 connection bolts, 4 gas vents, 5 plugs, 6 connecting rods, 7 circular arc turning handles, 8 outer spiral shells Line, 9 plug outriggers, 10 limited blocks, 11 ear mounts, 12 sliding annulus, 13 conical surface annulus, 14 flexible inner cavities, 15 sliding bars, 16 bullets Spring.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution:

A kind of crankcase throttling stopper structure of refrigeration compressor, including 1 plug 5 of end cap and plug outrigger 9, end cap 1 It is fixedly connected by connection bolt 3 with crankshaft box enclosure 2, and the upper surface of end cap 1 is provided with through-hole, outside the through-hole and crankcase The gas vent 4 of shell 2 is located at same axis, and oily plug 5 is arranged inside the through-hole, and the lower section of plug 5 is provided with external screw thread 8, blocks up First 5 interlude runs through end cap 1 and extends to the upper surface outer end of end cap 1, and it is mutually right that the upper end of plug 5 is vertically installed with left and right The connecting rod 6 of title, and plug 5 is mounted in the central lumen of plug outrigger 9, the fixed weldering in the one end of connecting rod 6 far from 5 central axis of plug It is connected to circular arc turning handle 7, circular arc turning handle 7 is mounted on the upper surface of plug outrigger 9, and the front and back axial end face of circular arc turning handle 7 supports respectively On the side of limited block 10.

The upper end of plug outrigger 9 is provided with inner cavity, and the rear and front end of the inner cavity is provided with limited block 10, plug outrigger 9 Left and right ends be provided with symmetrical a pair of of the ear mount 11 in left and right, the lower end fixed thread of plug outrigger 9 is connected with sliding Annulus 12, the lower end surface fixing seal of sliding annulus 12 are welded with conical surface annulus 13, and sliding annulus 12 is mounted on the end face of end cap 1 Through-hole wall, the lower end surface of conical surface annulus 13 be provided with circumference array distribution four flexible inner cavities 14, conical surface annulus 13 it is upper End face outer diameter is greater than the internal diameter of 1 upper surface through-hole of end cap, and the through-hole of end cap 1 is conic steps hole.Inside four flexible inner cavities 14 It is mounted on sliding bar 15, the upper end of sliding bar 15 extends to the inside of flexible inner cavity 14, and the lower end of sliding bar 15 is fixedly welded In crankshaft box enclosure 2, and the outer wall of sliding bar 15 is socketed with spring 16.The upper end of spring 16 is against the lower end of conical surface annulus 13 Face.The lower end surface of spring 16 is against the upper surface of crankshaft box enclosure 2.

Working principle: annulus 12 and conical surface annulus 13 will be slided first and will be installed from 1 lower end of end cap, by 9 screw thread of plug outrigger It is mounted on the upper end of sliding annulus 12, by connecting bolt 3 end cap 1 is fixedly connected with crankshaft box enclosure 2, realizes plug 5 External screw thread 8 connect with 4 fixed thread of gas vent inside crankshaft box enclosure 2, by pressing ear mount 11 realize compressed spring 16, So that plug outrigger 9 declines, at the end of plug 5 is installed, ear mount 11 is unclamped, so that spring 16 resets, 5 upper end of plug is pacified at this time In the upper end inner cavity of plug outrigger 9, and the axial end face of the circular arc turning handle 7 of plug 5 is against the side of limited block 10, realizes The installation that is screwed to plug 5.

When needing to carry out dismounting and change to plug 5, ear mount 11 is pressed, so that 13 compressed spring 16 of conical surface annulus, Sliding bar 15 extends in flexible inner cavity 14, and the decline of conical surface annulus 13 drives plug outrigger 9 to decline, and realizes limited block 10 and circular arc The separation of turning handle 7 rotates the external screw thread 8 of 5 lower section of plug by rotating circular arc turning handle 7, realizes the disassembly to plug 5.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. The stopper structure 1. a kind of crankcase of refrigeration compressor throttles, including end cap (1) plug (5) and plug outrigger (9), Be characterized in that: the end cap (1) is fixedly connected by connection bolt (3) with crankshaft box enclosure (2), and the upper end of end cap (1) Face is provided with through-hole, and the gas vent (4) of the through-hole and crankshaft box enclosure (2) is located at same axis, and setting oil inside the through-hole The lower section of plug (5), the plug (5) is provided with external screw thread (8), and the interlude of plug (5) through end cap (1) and extends to end The upper surface outer end of (1) is covered, the upper end of plug (5) is vertically installed with the symmetrical connecting rod in left and right (6), and plug (5) is installed In the central lumen of plug outrigger (9), the connecting rod (6) is fixedly welded with circular arc far from one end of plug (5) central axis and turns Handle (7), the circular arc turning handle (7) are mounted on the upper surface of plug outrigger (9), and the upper end of the plug outrigger (9) is provided with interior Chamber, and the rear and front end of the inner cavity is provided with limited block (10), it is mutually right that the left and right ends of plug outrigger (9) is provided with left and right A pair of of ear mount (11) of title, the lower end fixed thread of plug outrigger (9) are connected with sliding annulus (12), the sliding annulus (12) Lower end surface fixing seal be welded with conical surface annulus (13), sliding annulus (12) is mounted on the end face through-hole wall of end cap (1), institute The lower end surface for stating conical surface annulus (13) is provided with four flexible inner cavities (14) of circumference array distribution, four flexible inner cavities (14) internal to be mounted on sliding bar (15), the upper end of the sliding bar (15) extends to the inside of flexible inner cavity (14), sliding The lower end of bar (15) is fixedly welded on crankshaft box enclosure (2), and the outer wall of sliding bar (15) is socketed with spring (16).
2. The stopper structure 2. a kind of crankcase of refrigeration compressor according to claim 1 throttles, it is characterised in that: the cone The upper surface outer diameter of face annulus (13) is greater than the internal diameter of end cap (1) upper surface through-hole, and the through-hole of the end cap (1) is conic steps Hole.
3. The stopper structure 3. a kind of crankcase of refrigeration compressor according to claim 1 throttles, it is characterised in that: the bullet The upper end of spring (16) is against the lower end surface of conical surface annulus (13), and the lower end surface of spring (16) is against the upper end of crankshaft box enclosure (2) Face.
4. The stopper structure 4. a kind of crankcase of refrigeration compressor according to claim 1 throttles, it is characterised in that: the circle The front and back axial end face of arc turning handle (7) is against respectively on the side of limited block (10).