CN218151319U - Suction silencer of refrigeration compressor with replaceable inlet and outlet pipes - Google Patents

Abstract

A suction muffler of a refrigeration compressor with replaceable air inlet and outlet pipes comprises a left shell and a right shell, wherein a left shell silencing cavity and a right shell silencing cavity are arranged on one side of the left shell and one side of the right shell; the left side of the communicating vessel is matched with the left shell silencing cavity, and the right side of the communicating vessel is matched with the right shell silencing cavity; intake pipe and outlet duct, characteristics: the lower part of the left shell rear side wall of the left shell is provided with a left shell air inlet pipe embedding seat, a left shell air outlet pipe embedding cavity is arranged on the left shell top wall of the left shell, the lower part of the right shell rear side wall of the right shell is provided with a right shell air inlet pipe embedding seat, a right shell air outlet pipe embedding cavity is arranged on the right shell top wall of the right shell, the front end of the air inlet pipe is embedded between the left shell air inlet pipe embedding seat and matched with the lower end of the communicating device, the lower end of the air outlet pipe is embedded between the cavity walls of the left shell air outlet pipe and the right shell air outlet pipe embedding cavity and matched with the upper end of the communicating device, the rear end of the air inlet pipe is matched and connected with an air outlet of a refrigeration compressor cylinder, and the upper end of the air outlet pipe is matched and connected with an air inlet of the refrigeration compressor cylinder. The advantages are that: the resource waste is avoided, and the manufacturing cost is saved.

Description

Suction silencer of refrigeration compressor with replaceable inlet and outlet pipes

Technical Field

The utility model belongs to the technical field of the compressor accessory, concretely relates to removable compressor's of inlet duct, outlet duct muffler of breathing in.

Background

As known in the art, a fully-enclosed refrigeration compressor is usually provided with an air suction muffler therein, when the refrigeration compressor is in operation, a cylinder sucks refrigerant gas through the air suction muffler, and the air suction muffler not only reduces the heating effect of the refrigerant when the interior of the compressor generates heat, but also reduces noise and vibration caused by pressure pulsation in the flowing process of the refrigerant gas, thereby being beneficial to reducing noise in the operation process of the compressor, and simultaneously being capable of effectively improving the working efficiency of the compressor, i.e. improving the energy efficiency ratio (COP) of the compressor. Therefore, the suction muffler is an indispensable and important accessory of the current reciprocating fully-closed refrigeration compressor.

The suction muffler has the positive effects described above, and therefore is always concerned by the industry and is not described in the patent documents disclosed, for example, CN2663663Y (muffler case), CN2705629Y (muffler), CN2733037Y (hermetic refrigeration compressor suction muffler), CN2833127Y (new energy saving muffler of hermetic refrigeration compressor), CN2886124Y (semi-direct suction muffler for refrigeration compressor), CN201165957Y (suction muffler for refrigeration compressor), CN201386641Y (suction muffler for refrigeration compressor), CN101487461B (fitting structure of case cover and case of refrigeration compressor suction muffler), CN 101547545472B (suction muffler for refrigeration compressor), CN101545473B (suction muffler for refrigeration compressor), CN100585178A (suction muffler for compressor), CN107939644A (suction muffler for refrigeration compressor), and CN108317071A (combined suction muffler for refrigeration compressor), and so on.

Although not limited to the above-mentioned patents, each of them has corresponding technical effects, there is a disadvantage that it does not have to deal with the use of different models of refrigeration compressors, because different models or models of refrigeration compressors have different steel shell sizes (the concept of steel shell can be referred to as CN 100585178C), and the difference in steel shell sizes may cause the distances between the inlet pipe and the outlet pipe (also referred to as "inlet" and "outlet") of the suction muffler and the outlet of the compressor cylinder and the inlet of the compressor cylinder to change, that is, the inlet pipe and the outlet pipe of the suction muffler cannot be properly coupled with the outlet of the compressor cylinder and the inlet of the compressor cylinder. The current solutions are: the suction muffler with corresponding specification is equipped for models of different models, so that an air inlet pipe and an air outlet pipe of the suction muffler are respectively and well connected with an air outlet of a compressor cylinder and an air inlet of the compressor cylinder. However, this causes the following technical problems: the shell of the structure system of the suction muffler and the structure of the communicating vessel do not generate cause and effect relationship with the specification change of the steel shell of the refrigeration compressors of different models, but only the cause and effect relationship that whether the specification change of the steel shell can be well connected or well matched exists between the air inlet pipe and the air outlet pipe of the suction muffler. Therefore, in order to make the air inlet pipe and the air outlet pipe of the suction muffler adapt to the specification change of the steel shell, the communicating vessel and the muffler shell cover are replaced together, namely the suction muffler with another specification is integrally replaced, which undoubtedly causes the waste of resources and obviously increases the manufacturing cost of manufacturers of the suction mufflers. Based on the foregoing, the problem of finding a reasonable balance point between avoiding waste of resources and increasing the manufacturing cost and matching of steel shells of different specifications of the refrigeration compressor has long been troubling the industry, and the technical solutions to be described below have been created in this context.

SUMMERY OF THE UTILITY MODEL

The task of the utility model is to provide a help making intake pipe and outlet duct and casing form the modularization equipment relation and can only need to change intake pipe and outlet duct pertinence when the box hat model of compressor changes and ensure the continuation of original casing and linker and use and the normal performance of function, both can avoid causing the wasting of resources and can save manufacturing cost advance, the removable compressor's of outlet duct muffler of breathing in.

The task of the utility model is accomplished in this way, a suction muffler of a refrigeration compressor with a replaceable inlet pipe and a replaceable outlet pipe, which comprises a left shell and a right shell, wherein the left shell and the right shell are embedded and fixed in a face-to-face state, a left shell muffling cavity is formed on one side of the left shell facing the right shell, a right shell muffling cavity is formed on one side of the right shell facing the left shell, and the left shell muffling cavity and the right shell muffling cavity correspond to each other; the left side of the communicating vessel is in inserted fit with the left shell silencing cavity, and the right side of the communicating vessel is in inserted fit with the right shell silencing cavity; the air inlet pipe and the air outlet pipe are characterized in that a left shell air inlet pipe embedding seat is formed at the lower part of the rear side wall of a left shell of the left shell, a left shell air outlet pipe embedding cavity with an opening facing to a right shell is formed on the top wall of the left shell, a right shell air inlet pipe embedding seat is formed at the lower part of the rear side wall of a right shell of the right shell and at a position corresponding to the left shell air inlet pipe embedding seat, a right shell air outlet pipe embedding cavity with an opening facing to the left shell and corresponding to the left shell air outlet pipe embedding cavity is formed on the top wall of the right shell, the front end of the air inlet pipe is embedded between the left shell air inlet pipe embedding seat and the right shell air inlet pipe embedding seat and matched with the lower end of the communicating device, the lower end of the air outlet pipe is embedded between the cavity wall of the left shell air outlet pipe embedding cavity and the cavity wall of the right shell air outlet pipe embedding cavity and matched with the upper end of the communicating device, the rear end of the air inlet pipe is matched with a refrigeration compressor cylinder of the refrigeration compressor in a use state, and the upper end of the refrigeration compressor cylinder of the air outlet pipe is matched with the refrigeration compressor in a use state.

In a specific embodiment of the present invention, a left housing muffling chamber partition slot is formed on and along the height direction of the left housing muffling chamber left wall of the left housing muffling chamber of the left housing, and a right housing muffling chamber partition slot is formed on and along the height direction of the right housing muffling chamber right wall of the right housing muffling chamber of the right housing, at a position corresponding to the left housing muffling chamber partition slot; the left side of the communicating device is in inserted fit with the slot of the clapboard of the silencing cavity of the left shell, and the right side of the communicating device is in inserted fit with the slot of the clapboard of the silencing cavity of the right shell; a left supporting head matching cavity at the lower end of a communicating pipe is formed on one side of the left shell air inlet pipe embedded seat facing the left shell sound attenuation cavity, a right supporting head matching cavity at the lower end of a communicating pipe is formed on one side of the right shell air inlet pipe embedded seat facing the right shell sound attenuation cavity, a left embedding groove of an air outlet pipe seat is formed on the wall of the left shell air outlet pipe embedded cavity, and a right embedding groove of the air outlet pipe seat is formed on the wall of the right shell air outlet pipe embedded cavity and at the position corresponding to the left embedding groove of the air outlet pipe seat; the left side of the lower end of the communicating vessel is supported on the left supporting head matching cavity of the lower end of the communicating pipe, and the right side of the lower end of the communicating vessel is supported on the right supporting head matching cavity of the lower end of the communicating pipe; the front end of the air inlet pipe corresponds to the left supporting head matching cavity at the lower end of the communicating pipe and the right supporting head matching cavity at the lower end of the communicating pipe; the lower end of the air outlet pipe is simultaneously matched with the left caulking groove of the air outlet pipe seat and the right caulking groove of the air outlet pipe seat in an embedding manner.

In another specific embodiment of the present invention, the communicating vessel comprises a left tube flap and a right tube flap, the left tube flap and the right tube flap have the same shape and face-to-face fit with each other to form a complete communicating tube cavity, a left tube flap sound-deadening cavity partition is formed in the middle of the left tube flap in the height direction, a left tube flap air outlet pipe fitting head extends from the upper end of the left tube flap, a left tube flap lower end left support head extends from the lower end of the left tube flap, a left tube flap first air outlet hole i is formed in the lower portion of the left tube flap and in the position behind the lower end of the left tube flap sound-deadening cavity partition, a left tube flap second air outlet hole ii is formed in the middle of the left tube flap and in the position in front of the middle of the left tube flap sound-deadening cavity partition, a right tube flap cavity partition is formed in the middle of the right tube flap in the height direction, the left side of the right pipe flap silencing cavity partition plate in the height direction is mutually embedded and matched with the right side of the left pipe flap silencing cavity partition plate in the height direction, a right pipe flap outlet pipe inserting head extends from the upper end part of the right pipe flap, the right pipe flap outlet pipe inserting head corresponds to and is mutually matched with the left pipe flap outlet pipe inserting head, a right pipe flap lower end right supporting head extends from the lower end part of the right pipe flap, a right pipe flap first outlet hole I is formed in the lower part of the right pipe flap and at the position on the rear side of the lower end of the right pipe flap silencing cavity partition plate, the right pipe flap first outlet hole I corresponds to the left pipe flap first outlet hole I, a right pipe flap second outlet hole II is formed in the middle part of the right pipe flap and at the position on the front side of the middle part of the right pipe flap silencing cavity partition plate, and the right pipe flap second outlet hole II corresponds to the left pipe flap second outlet hole II; the left shell silencing cavity of the left shell is divided into a left shell silencing cavity first silencing cavity I positioned at the rear side of the left tube flap silencing cavity partition plate and a left shell silencing cavity second silencing cavity II positioned at the front side of the left tube flap silencing cavity partition plate by the inserting and embedding fit of the left side of the left tube flap silencing cavity partition plate and the inserting and embedding fit of the left side of the left tube flap silencing cavity partition plate, the right shell silencing cavity of the right shell is divided into a right shell silencing cavity first silencing cavity I positioned at the rear side of the right tube flap silencing cavity partition plate and a right shell silencing cavity second silencing cavity II positioned at the front side of the right tube flap silencing cavity partition plate by the inserting and embedding fit of the right side of the right tube flap silencing cavity partition plate and the inserting and embedding fit of the right shell silencing cavity partition plate, the left shell silencing cavity first silencing cavity I corresponds to and is communicated with the right shell silencing cavity first silencing cavity I, and the left shell silencing cavity second silencing cavity II corresponds to and is communicated with the right shell silencing cavity second silencing cavity II; the left supporting head at the lower end of the left pipe flap and the right supporting head at the lower end of the right pipe flap are respectively supported on the matching cavity of the left supporting head at the lower end of the communicating pipe and the matching cavity of the right supporting head at the lower end of the communicating pipe in a state of face-to-face matching with each other and extend into an air outlet of the air inlet pipe at the front end of the air inlet pipe; the left valve air outlet pipe inserting and matching head and the right valve air outlet pipe inserting and matching head are inserted and matched with the lower end of the air outlet pipe in a state of face-to-face matching; the left pipe flap first air outlet hole I and the right pipe flap first air outlet hole I are respectively communicated with the left shell silencing cavity first silencing chamber I and the right shell silencing cavity first silencing chamber I, and the left pipe flap second air outlet hole II and the right pipe flap second air outlet hole II are respectively communicated with the left shell silencing cavity second silencing chamber II and the right shell silencing cavity second silencing chamber II; the left shell air outlet pipe embedded cavity corresponds to the upper part of the first silencing chamber I of the left shell silencing cavity, and the right shell air outlet pipe embedded cavity corresponds to the upper part of the first silencing chamber I of the right shell silencing cavity.

In another specific embodiment of the present invention, a partition insertion convex strip groove is provided on the right side surface of the left tube flap silencing cavity partition plate and following the height direction of the left tube flap silencing cavity partition plate, a partition insertion convex strip is formed on the left side surface of the right tube flap silencing cavity partition plate and following the height direction of the right tube flap silencing cavity partition plate, and the left tube flap and the right tube flap are fitted face to face with each other by inserting the partition insertion convex strip into the partition insertion convex strip groove.

In another specific embodiment of the present invention, the bottom of the left housing and corresponding to the region of the first muffling chamber i of the left housing is formed with a left housing oil dripping port communicating with the first muffling chamber i of the left housing, the bottom of the right housing and corresponding to the region of the first muffling chamber i of the right housing is formed with a right housing oil dripping port communicating with the first muffling chamber i of the right housing, and the left and right housing oil dripping ports are face-to-face matched with each other.

In still another embodiment of the present invention, the peripheral edge of the right outer wall of the left housing is formed with a housing fixing engaging pin in a spaced state, and the peripheral edge of the left outer wall of the right housing is formed with a engaging pin seat in a spaced state at a position corresponding to the housing fixing engaging pin, and the engaging pin seat is formed with an engaging pin engaging hole, and the housing fixing engaging pin is engaged with the engaging pin engaging hole to fix the left housing and the right housing in a face-to-face state, and simultaneously clamp the front end of the intake pipe between the left housing intake pipe engaging seat and the right housing intake pipe engaging seat, and clamp the lower end of the outlet pipe between the left outlet pipe seat engaging groove and the right outlet pipe seat engaging groove and to clamp the right housing sealing engaging edge formed at the peripheral edge of the left outer wall of the right housing into the sealing engaging groove formed at the peripheral edge of the right outer wall of the left housing and corresponding to the right housing sealing engaging edge.

In a more specific embodiment of the present invention, the depth and height of the left first muffling chamber i are the same as the depth and height of the left second muffling chamber ii, the width of the left first muffling chamber i is two to three times the width of the left second muffling chamber ii, the depth and height of the right first muffling chamber i are the same as the depth and height of the right second muffling chamber ii, the width of the right first muffling chamber i is two to three times the width of the right second muffling chamber ii, and the depth, height and width of the left first muffling chamber i are the same as the depth, height and width of the right first muffling chamber i, and the depth, height and width of the left second muffling chamber ii are the same as the depth, height and width of the right second muffling chamber ii.

In yet another specific embodiment of the present invention, a left housing intake pipe fitting flange groove is formed on the left housing intake pipe fitting seat, and a right housing intake pipe fitting flange groove is formed on the right housing intake pipe fitting seat, an intake pipe fitting flange is formed on the front end outer wall of the intake pipe, the intake pipe fitting flange simultaneously fits with the left housing intake pipe fitting flange groove and the right housing intake pipe fitting flange groove, and the intake pipe outlet of the intake pipe simultaneously communicates with the left housing muffling chamber i and the right housing muffling chamber i.

In yet another specific embodiment of the present invention, a gas outlet pipe seat is formed on the outer wall of the lower end of the gas outlet pipe and around the outer wall of the gas outlet pipe, the gas outlet pipe seat is held between the left caulking groove of the gas outlet pipe seat and the right caulking groove of the gas outlet pipe seat, a gas outlet pipe fitting pipe section extends from the lower end of the gas outlet pipe and is located at the central position of one side of the gas outlet pipe seat facing downward, the left valve outlet pipe fitting head and the right valve outlet pipe fitting head are fitted with the gas outlet pipe fitting pipe section cavity of the gas outlet pipe fitting pipe section in a face-to-face fit state, and the gas outlet pipe fitting pipe section cavity is communicated with the complete communicating pipe cavity formed by the left valve and the right valve and with the gas outlet pipe cavity of the gas outlet pipe.

In yet another specific embodiment of the present invention, a pair of outlet pipe mounting positioning seats are formed on the outer wall of the middle portion of the outlet pipe and on the left side of the outer wall, and a refrigeration compressor cylinder air inlet fitting is formed on the upper end of the outlet pipe, an air outlet of an adapter cavity of the refrigeration compressor cylinder air inlet fitting faces to the left, and the air outlet pipe cavity is communicated with the adapter cavity; and a filter screen is arranged between the top end surface of the left pipe flap air outlet pipe inserting and matching head and the right pipe flap air outlet pipe inserting and matching head which are matched with each other in a face-to-face manner and the step surface of the lower end of the air outlet pipe.

The technical scheme provided by the utility model the technical effect lie in: the air inlet pipe and the air outlet pipe are arranged between the left shell and the right shell in the form of independent modular parts and in the state of being matched with the lower end and the upper end of the communicating vessel, so that the air inlet pipe and the air outlet pipe can embody a good modular assembly relation, when the specification of the steel shell of the refrigeration compressor is changed, the air inlet pipe and the air outlet pipe with proper specifications are only required to be replaced pertinently, the left shell, the right shell and the communicating vessel can still be used continuously, the exertion of the inherent functions of the left shell, the right shell and the communicating vessel is not influenced, the resource waste can be avoided, and the manufacturing cost can be saved.

Drawings

Fig. 1 is a three-dimensional exploded structure diagram of the present invention.

Fig. 2 is a schematic view of the left housing in fig. 1 viewed from the right side.

Fig. 3 is a cross-sectional view of fig. 1 assembled.

Fig. 4 is a detailed structural view of the communicator shown in fig. 1.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, should not be interpreted as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1, there are shown a left housing 1 and a right housing 2 molded by plastic molding, the left housing 1 and the right housing 2 being fitted and fixed in a state of facing each other, and a left housing muffling chamber 11 being formed on a side of the left housing 1 facing the right housing 2, and a right housing muffling chamber 21 being formed on a side of the right housing 2 facing the left housing 1, the left housing muffling chamber 11 and the right muffling chamber 21 corresponding to each other, whereby it can be seen that the fitting of the left housing 1 and the right housing 2 in a state of facing each other means that the left and right housings 1, 2 are fitted to each other in a state of the left and right muffling chambers 11, 21 corresponding to each other; a communicating vessel 3 is shown, the left side of the communicating vessel 3 is in inserted-fitted engagement with the aforementioned left housing sound-deadening chamber 11, and the right side of the communicating vessel 3 is in inserted-fitted engagement with the aforementioned right housing sound-deadening chamber 21; an inlet duct 4 and an outlet duct 5 are shown moulded from plastics material.

Please refer to fig. 2 and fig. 3 in combination with fig. 1, which is a technical point of the technical solution provided by the present invention: a left housing air inlet pipe insert seat 121 is formed at the lower part of the left housing rear side wall 12 of the left housing 1, a left housing air outlet pipe insert cavity 131 with an opening facing the right housing 2, i.e., with an opening facing the right, is formed on the left housing top wall 13 of the left housing 1, a right housing air inlet pipe insert seat 221 is formed at the lower part of the right housing rear side wall 22 of the right housing 2 and at a position corresponding to the left housing air inlet pipe insert seat 121, a right housing air outlet pipe insert cavity 231 with an opening facing the left housing 1, i.e., with an opening facing the left and corresponding to the left housing air outlet pipe insert cavity 131, is formed on the right housing top wall 23 of the right housing 2, the front end of the air inlet pipe 4 is inserted between the left housing air inlet pipe insert seat 121 and the right housing insert seat 221 and is engaged with the lower end of the communicating vessel 3, the lower end of the air outlet pipe 5 is inserted between the cavity walls of the left housing air outlet pipe insert cavity 131 and the cavity walls of the right housing air outlet pipe insert cavity and is engaged with the upper end of the communicating vessel 3, and the air outlet pipe 5 is engaged with the compressor in the upper end of the compressor cylinder under the refrigeration state.

A left shell silencing cavity partition plate slot 14 is formed on and along the height direction of the left shell silencing cavity left cavity wall of the left shell silencing cavity 11 of the left shell 1, and a right shell silencing cavity partition plate slot 24 is formed on and along the height direction of the right shell silencing cavity right cavity wall of the right shell silencing cavity 21 of the right shell 2 at a position corresponding to the left shell silencing cavity partition plate slot 14; the left side of the communicating vessel 3 is in inserted fit with the left shell silencing cavity partition plate slot 14, and the right side of the communicating vessel 3 is in inserted fit with the right shell silencing cavity partition plate slot 24; a pipe lower left support head fitting cavity 1211 (shown in fig. 2) is formed at a side (also called one end) of the left housing air inlet pipe insert 121 facing the left housing sound-deadening cavity 11, a pipe lower right support head fitting cavity 2211 (shown in fig. 1) is formed at a side of the right housing air inlet pipe insert 221 facing the right housing sound-deadening cavity 21, an air outlet pipe seat left insert groove 1311 is formed at a left housing air outlet pipe insert cavity wall of the left housing air outlet pipe insert cavity 131, and an air outlet pipe seat right insert groove 2311 is formed at a right housing air outlet pipe insert cavity wall of the right housing air outlet pipe insert cavity 231 and at a position corresponding to the air outlet pipe seat left insert groove 1311; the left side of the lower end of the communicating pipe 3 is supported by the left supporting head matching chamber 1211 of the lower end of the communicating pipe, and the right side of the lower end of the communicating pipe 3 is supported by the right supporting head matching chamber 2211 of the lower end of the communicating pipe; the front end of the air inlet pipe 4 corresponds to the left supporting head matching cavity 1211 at the lower end of the communicating pipe and the right supporting head matching cavity 2211 at the lower end of the communicating pipe; the lower end of the air outlet pipe 5 is simultaneously embedded with the left embedding groove 1311 and the right embedding groove 2311 of the air outlet pipe seat. The left communicating pipe lower end supporting head fitting cavity 1211 and the right communicating pipe lower end supporting head fitting cavity 2211 may also be collectively referred to as a fitting cavity at the front end of the intake pipe 4 at the portion of the intake pipe air outlet 42.

Referring to fig. 4 in combination with fig. 1, the above-mentioned communicating vessel 3 comprises a left tube flap 31 and a right tube flap 32 molded from plastic, the left tube flap 31 and the right tube flap 32 have the same shape and are fitted to each other in a face-to-face manner to form a complete communicating tube cavity, a left flap sound-deadening chamber partition 311 is formed in the middle of the left tube flap 31 in the height direction, a left flap air outlet pipe fitting 312 extends from the upper end of the left tube flap 31, a left flap lower end left support 313 extends from the lower end of the left tube flap 31, a left flap first air outlet hole i 314 is formed in the lower portion of the left tube flap 31 and in the rear side of the lower end of the above-mentioned left flap sound-deadening chamber partition 311, a left flap second air outlet hole ii 315 is formed in the middle of the left tube flap 31 and in the front side of the middle of the left flap sound-deadening chamber partition 311, a right flap partition 321 is formed in the middle of the right tube flap 32 in the height direction, the left side of the right flap sound-deadening chamber partition 321 in the height direction is fitted to the right side of the left flap sound-deadening chamber partition 311 in the height direction, and a right flap outlet pipe fitting 322 extends from the upper end portion of the right flap 32, the right flap outlet pipe fitting 322 corresponds to and fits with the left flap outlet pipe fitting 312, a right flap lower end right support head 323 extends from the lower end portion of the right flap 32, a right flap first outlet port i 324 is provided in the lower portion of the right flap 32 and at a position on the rear side of the lower end of the right flap sound-deadening chamber partition 321, the right flap first outlet port i 324 corresponds to the left flap first outlet port i 314, and a right flap second outlet port ii is provided in the middle of the right flap 32 and at a position on the front side of the middle of the right flap sound-deadening chamber partition 321, the right pipe flap second air outlet hole II 325 corresponds to the left pipe flap second air outlet hole II 315; the left shell sound-deadening chamber 11 of the left shell 1 is partitioned into a first left shell sound-deadening chamber i 111 located on the rear side of the left-lobe sound-deadening chamber partition 311 and a second left shell sound-deadening chamber ii 112 located on the front side of the left-lobe sound-deadening chamber partition 311 by the insertion-fitting engagement of the left side in the height direction of the left-lobe sound-deadening chamber partition 311 with the left-shell sound-deadening chamber partition slot 14, the right shell sound-deadening chamber 21 of the right shell 2 is partitioned into a first right shell sound-deadening chamber i 211 located on the rear side of the right-lobe sound-deadening chamber partition 321 and a second right shell sound-deadening chamber ii located on the front side of the right-lobe sound-deadening chamber partition 321 by the insertion-fitting engagement of the right-lobe sound-deadening chamber partition 321 with the right-shell sound-deadening chamber partition slot 24, the first left shell sound-deadening chamber i 111 and the first right shell sound-deadening chamber i 211 correspond to each other and the second left-deadening chamber ii 212 and the second left-shell sound-deadening chamber ii 212 and the second chamber ii 212 communicate with each other; the left valve lower end left support head 313 and the right valve lower end right support head 323 are respectively supported by the communication pipe lower end left support head engagement chamber 1211 and the communication pipe lower end right support head engagement chamber 2211 in a state of being engaged with each other in a face-to-face manner, and are inserted (i.e., inserted) into the intake pipe air outlet 42 at the front end of the intake pipe 4; the left valve outlet pipe fitting head 312 and the right valve outlet pipe fitting head 322 are fitted to the lower end of the outlet pipe 5 in a face-to-face fit state; the left pipe flap first air outlet hole I314 and the right pipe flap first air outlet hole I324 are respectively communicated with the left shell silencing cavity first silencing chamber I111 and the right shell silencing cavity first silencing chamber I211, and the left pipe flap second air outlet hole II 315 and the right pipe flap second air outlet hole II 325 are respectively communicated with the left shell silencing cavity second silencing chamber II 112 and the right shell silencing cavity second silencing chamber II 212; the left housing outlet pipe embedded cavity 131 corresponds to the upper portion of the first silencing chamber I111 of the left housing silencing cavity, and the right housing outlet pipe embedded cavity 231 corresponds to the upper portion of the first silencing chamber I211 of the right housing silencing cavity.

A partition plate fitting protrusion groove 3111 is formed on the right side surface of the left flap damper chamber partition plate 311 along the height direction of the left flap damper chamber partition plate 311, a partition plate fitting protrusion 3211 is formed on the left side surface of the right flap damper chamber partition plate 321 along the height direction of the right flap damper chamber partition plate 321, and the partition plate fitting protrusion 3211 is inserted into the partition plate fitting protrusion groove 3111 to fit the left and right flaps 31 and 32 to each other face to face and form an integral tubular body structure.

A left housing oil dripping port 15 communicated with the left housing sound-deadening chamber I111 is formed at the bottom of the left housing 1 and in the region corresponding to the left housing sound-deadening chamber I111, a right housing oil dripping port 25 communicated with the right housing sound-deadening chamber I211 is formed at the bottom of the right housing 2 and in the region corresponding to the right housing sound-deadening chamber I211, and the left and right housing oil dripping ports 15, 25 are fitted to face each other.

As shown in fig. 1 to 3, housing fixing locking legs 16 are formed at the peripheral edge of the right outer wall of the left housing 1 in a spaced state, locking leg seats 26 are formed at the peripheral edge of the left outer wall of the right housing 2 in a spaced state at positions corresponding to the housing fixing locking legs 16, locking leg fitting holes 261 are formed in the locking leg seats 26, the housing fixing locking legs 16 are locked in the locking leg fitting holes 261 to fix the left and right housings 1 and 2 in a face-to-face state, and at the same time, the front end of the intake duct 4 is sandwiched between the left and right housing intake duct fitting seats 121 and 221, the lower end of the intake duct 5 is sandwiched between the left and right outlet duct fitting grooves 1311 and 2311, and the right housing sealing fitting 27 formed at the left peripheral edge of the right housing 2 is fitted in the sealing fitting groove 17 formed at the right peripheral edge of the left housing 1 in a position corresponding to the right housing sealing fitting 27.

The depth and height of the aforementioned first left-housing sound-deadening chamber i 111 and the depth and height of the aforementioned second left-housing sound-deadening chamber ii 112 are equal to each other, and the width of the first left-housing sound-deadening chamber i 111 is preferably two to three times, preferably two and a half times, and more preferably two times (twice in this embodiment) the width of the second left-housing sound-deadening chamber ii 112. For example, the width of the first silencing chamber I111 of the left shell silencing cavity is 4cm, and the width of the second silencing chamber II 112 of the left shell silencing cavity is 2cm. Of course this is by way of example only and is not meant to be limited by the illustrated dimensions. Similarly, the depth and height of the right first muffling chamber 211 are equal to the depth and height of the right second muffling chamber 212, and the width of the right first muffling chamber 211 is preferably two to three times, preferably two times or three times, more preferably two times (twice in this embodiment), as described with respect to the widths of the left first muffling chamber 111 and the left second muffling chamber 112, and the depth, height and width of the left first muffling chamber 111 are equal to the depth, height and width of the right first muffling chamber 211, and the depth, height and width of the left second muffling chamber 112 are equal to the depth, height and width of the right second muffling chamber 212.

As shown in fig. 1 to 3, a left housing intake duct fitting flange groove 1212 (shown in fig. 2) is formed in the left housing intake duct fitting 121, a right housing intake duct fitting flange groove 2212 (shown in fig. 1) is formed in the right housing intake duct fitting 221, an intake duct fitting flange 41 (shown in fig. 1 and 3) is formed on the outer wall of the front end of the intake duct 4, the intake duct fitting flange 41 is fitted in the left housing intake duct fitting flange groove 1212 and the right housing intake duct fitting flange groove 2212, and an intake duct outlet 42 (shown in fig. 1 and 3) of the intake duct 4 is communicated with the left housing muffling chamber i 111 and the right housing muffling chamber i 211.

Referring to fig. 1 and 3, an outlet pipe seat 51 is formed on the outer wall of the lower end of the outlet pipe 5 and around the outer wall of the outlet pipe 5, the outlet pipe seat 51 is clamped between (i.e. clamped between) the left caulking groove 1311 and the right caulking groove 2311 of the outlet pipe seat, an outlet pipe fitting pipe section 52 extends from the lower end of the outlet pipe 5 and is located at the center of the downward side of the outlet pipe seat 51, the left flap outlet pipe fitting 312 and the right flap outlet pipe fitting 322 are fitted to the outlet pipe fitting pipe section cavity 521 of the outlet pipe fitting pipe section 52 in a face-to-face manner, and the outlet pipe fitting pipe section cavity 521 is communicated with the complete communication pipe cavity formed by the left flap 31 and the right flap 32 and the outlet pipe cavity 53 of the outlet pipe 5.

As shown in fig. 1, a pair of outlet pipe mounting positioning seats 54 are formed on the outer wall of the middle part of the outlet pipe 5 and on the left side of the outer wall, and a refrigeration compressor cylinder inlet port fitting 55 is formed on the upper end of the outlet pipe 5, the outlet 5511 of the fitting cavity 551 of the refrigeration compressor cylinder inlet port fitting 55 faces to the left, and the outlet pipe cavity 53 is communicated with the fitting cavity 551; a filter screen 6 is provided between the top end face of the left valve outlet pipe fitting 312 and the right valve outlet pipe fitting 322 which face each other and the step face 56 of the lower end of the outlet pipe 5.

When the types of the refrigeration compressors mentioned above are different, the steel shells are correspondingly different, so that the air inlet pipe 4 and the air outlet pipe 5 which are matched with the refrigeration compressors in specification are respectively matched and connected with the air outlet of the cylinder of the refrigeration compressor, in this case, the left shell 1 and the right shell 2 can be mutually removed from the jogged state, specifically, the shell fixing foot 16 is made to retreat from the foot clamping seat matching hole 261 of the foot clamping seat 26 in a manual operation mode, the original air inlet pipe 4 and the original air outlet pipe 5 are taken away, the air inlet pipe 4 and the air outlet pipe 5 which are matched with the specification are replaced, then the left shell 1 and the right shell 1 and the shell 2 are mutually jogged and fixed, the air inlet pipe 43 of the air inlet pipe 4 is matched and connected with the air outlet of the cylinder of the refrigeration compressor, and simultaneously, the matching head cavity air outlet 5511 of the air outlet pipe 5 is matched and connected with the air inlet of the cylinder of the refrigeration compressor. Since the working materials of the suction muffler belong to the known art, for example, see the patent documents mentioned in the above background of the invention section by the applicant, the description thereof is omitted.

As is apparent from the above description, the left and right casings 1 and 2 and the communication device 3 are common parts, and the inlet and outlet pipes 4 and 5 are strain parts adapted to the specification change of the steel shell of the refrigerating compressor.

To sum up, the technical scheme provided by the utility model makes up the defects in the prior art, successfully completes the invention task, and faithfully realizes the technical effects of the applicant in the technical effect column.

Claims (10)

1. A suction muffler of a refrigeration compressor with a replaceable air inlet pipe and a replaceable air outlet pipe comprises a left shell (1) and a right shell (2), wherein the left shell (1) and the right shell (2) are embedded and fixed in a face-to-face state, a left shell muffling cavity (11) is formed on one side of the left shell (1) facing the right shell (2), a right shell muffling cavity (21) is formed on one side of the right shell (2) facing the left shell (1), and the left shell muffling cavity (11) and the right shell muffling cavity (21) correspond to each other; the left side of the communicating vessel (3) is in inserted fit with the left shell silencing cavity (11), and the right side of the communicating vessel (3) is in inserted fit with the right shell silencing cavity (21); an air inlet pipe (4) and an air outlet pipe (5), which is characterized in that a left shell air inlet pipe embedding seat (121) is formed at the lower part of the left shell rear side wall (12) of the left shell (1), a left shell air outlet pipe embedded cavity (131) with an opening facing the right shell (2) is formed on the left shell top wall (13) of the left shell (1), a right shell air inlet pipe embedding seat (221) is formed at the lower part of the right shell rear side wall (22) of the right shell (2) and at the position corresponding to the left shell air inlet pipe embedding seat (121), a right shell air outlet pipe embedded cavity (231) which is opened towards the left shell (1) and corresponds to the left shell air outlet pipe embedded cavity (131) is formed on the top wall (23) of the right shell (2), the front end of the air inlet pipe (4) is embedded between the left shell air inlet pipe embedding seat (121) and the right shell air inlet pipe embedding seat (221) and is matched with the lower end of the communicating vessel (3), the lower end of the air outlet pipe (5) is embedded between the cavity wall of the left shell air outlet pipe embedded cavity (131) and the cavity wall of the right shell air outlet pipe embedded cavity (231) and is matched with the upper end of the communicating vessel (3), the rear end of the air inlet pipe (4) is matched and connected with an air outlet of a refrigeration compressor cylinder of a refrigeration compressor in a use state, the upper end of the air outlet pipe (5) is connected with an air inlet of a cylinder of the refrigeration compressor in a use state.

2. Suction muffler for a refrigeration compressor with replaceable inlet and outlet pipes according to claim 1, characterized in that a left shell muffling chamber partition slot (14) is formed on and in the height direction of the left shell muffling chamber left wall of the left shell muffling chamber (11) of the left shell (1), and a right shell muffling chamber partition slot (24) is formed on and in the height direction of the right shell muffling chamber right wall of the right shell muffling chamber (21) of the right shell (2) at a position corresponding to the left shell muffling chamber partition slot (14); the left side of the communicating vessel (3) is in inserted fit with the left shell silencing cavity partition plate slot (14), and the right side of the communicating vessel (3) is in inserted fit with the right shell silencing cavity partition plate slot (24); a communicating pipe lower end left supporting head matching cavity (1211) is formed on one side of the left shell air inlet pipe embedded seat (121) facing the left shell sound attenuation cavity (11), a communicating pipe lower end right supporting head matching cavity (2211) is formed on one side of the right shell air inlet pipe embedded seat (221) facing the right shell sound attenuation cavity (21), an air outlet pipe seat left embedded groove (1311) is formed on the left shell air outlet pipe embedded cavity wall of the left shell air outlet pipe embedded cavity (131), an air outlet pipe seat right embedded groove (2311) is formed on the right shell air outlet pipe embedded cavity wall of the right shell air outlet pipe embedded cavity (231) and at the position corresponding to the air outlet pipe seat left embedded groove (1311); the left side of the lower end of the communicating vessel (3) is supported on the left supporting head matching cavity (1211) of the lower end of the communicating pipe, and the right side of the lower end of the communicating vessel (3) is supported on the right supporting head matching cavity (2211) of the lower end of the communicating pipe; the front end of the air inlet pipe (4) corresponds to the left supporting head matching cavity (1211) at the lower end of the communicating pipe and the right supporting head matching cavity (2211) at the lower end of the communicating pipe at the same time; the lower end of the air outlet pipe (5) is simultaneously matched with the left caulking groove (1311) of the air outlet pipe seat and the right caulking groove (2311) of the air outlet pipe seat in an embedding manner.

3. Suction muffler for a refrigeration compressor with replaceable inlet and outlet tubes according to claim 2, characterized in that said communicating vessel (3) comprises a left tube flap (31) and a right tube flap (32), the left tube flap (31) and the right tube flap (32) have the same shape and are fitted to each other face to form a complete communicating tube cavity, a left-flap muffler cavity partition (311) is formed in the middle of the left tube flap (31) in the height direction, a left-flap outlet tube fitting (312) extends from the upper end of the left tube flap (31), a left-flap lower-end left support head (313) extends from the lower end of the left tube flap (31), a left-flap first outlet hole i (314) is formed in the lower part of the left tube flap (31) and at the position on the rear side of the lower end of the left-flap muffler cavity partition (311), a left-flap second outlet hole i (315) is formed in the middle of the left tube flap (31) and at the position on the front side of the middle part of the left-flap cavity partition (311), a right-flap outlet tube cavity partition (321) has a left-flap lower-end inserting hole ii formed in the right tube fitting (321) and a left-flap inserting head (321) extends from the right tube cavity partition (321), and a left-flap inserting head (322) extends from the left-flap (321) in the right tube cavity partition in the right direction, and a left-flap (321) and a right tube fitting cavity partition (321 forms a left-flap inserting head (322) and a left-flap inserting head (322) extends from the right end of the right valve inserting head (322), and a left flap (322) and a left flap A right pipe flap lower end right supporting head (323) extends from the lower end part of the right pipe flap (32), a right pipe flap first air outlet hole I (324) is formed in the lower part of the right pipe flap (32) and at the position located on the rear side of the lower end of the right pipe flap silencing cavity partition plate (321), the right pipe flap first air outlet hole I (324) corresponds to the left pipe flap first air outlet hole I (314), a right pipe flap second air outlet hole II (325) is formed in the middle part of the right pipe flap (32) and at the position located on the front side of the middle part of the right pipe flap silencing cavity partition plate (321), and the right pipe flap second air outlet hole II (325) corresponds to the left pipe flap second air outlet hole II (315); a left shell silencing cavity (11) of the left shell (1) is divided into a left shell silencing cavity first silencing cavity I (111) located at the rear side of the left tube flap silencing cavity partition plate (311) and a left shell silencing cavity second silencing cavity II (112) located at the front side of the left tube flap silencing cavity partition plate (311) by the inserting and embedding fit of the left side of the left tube flap silencing cavity partition plate (311) and the left shell silencing cavity partition plate slot (14), a right shell silencing cavity (21) of the right shell (2) is divided into a right shell silencing cavity first silencing cavity I (211) located at the rear side of the right tube flap silencing cavity partition plate (321) and a right shell silencing cavity second silencing cavity II (212) located at the front side of the right tube flap silencing cavity partition plate (321) by the inserting and embedding fit of the right tube flap silencing cavity partition plate (321), the left shell silencing cavity I (111) and the right shell silencing cavity II (112) are communicated with each other, and the left shell silencing cavity I (211) and the right shell silencing cavity I (111) are communicated with the second silencing cavity II; the left supporting head (313) at the lower end of the left pipe flap and the right supporting head (323) at the lower end of the right pipe flap are respectively supported on the left supporting head matching cavity (1211) at the lower end of the communicating pipe and the right supporting head matching cavity (2211) at the lower end of the communicating pipe in a state of mutually face-to-face matching and extend into an air inlet pipe air outlet (42) at the front end of an air inlet pipe (4); the left valve air outlet pipe inserting and matching head (312) and the right valve air outlet pipe inserting and matching head (322) are inserted and matched with the lower end of the air outlet pipe (5) in a face-to-face matching state; the left pipe flap first air outlet hole I (314) and the right pipe flap first air outlet hole I (324) are respectively communicated with the left shell silencing cavity first silencing chamber I (111) and the right shell silencing cavity first silencing chamber I (211), and the left pipe flap second air outlet hole II (315) and the right pipe flap second air outlet hole II (325) are respectively communicated with the left shell silencing cavity second silencing chamber II (112) and the right shell silencing cavity second silencing chamber II (212); the left shell air outlet pipe embedded cavity (131) corresponds to the upper part of the first silencing chamber I (111) of the left shell silencing cavity, and the right shell air outlet pipe embedded cavity (231) corresponds to the upper part of the first silencing chamber I (211) of the right shell silencing cavity.

4. The suction muffler for a refrigerant compressor with a replaceable inlet/outlet duct according to claim 3, wherein a partition insertion protrusion groove (3111) is formed on the right side surface of the partition plate (311) of the left-half muffling chamber along the height direction of the partition plate (311) of the left-half muffling chamber, a partition insertion protrusion rib (3211) is formed on the left side surface of the partition plate (321) of the right-half muffling chamber along the height direction of the partition plate (321) of the right-half muffling chamber, and the partition insertion protrusion rib (3211) is inserted into the partition insertion protrusion groove (3111) to fit the left-half muffler (31) and the right-half muffler (32) to face each other.

5. The suction muffler of a refrigerating compressor with replaceable inlet and outlet pipes according to claim 3, wherein a left casing oil drop port (15) communicating with the left casing sound-deadening chamber I (111) is formed at the bottom of the left casing (1) and in a region corresponding to the left casing sound-deadening chamber I (111), a right casing oil drop port (25) communicating with the right casing sound-deadening chamber I (211) is formed at the bottom of the right casing (2) and in a region corresponding to the right casing sound-deadening chamber I (211), and the left and right casing oil drop ports (15, 25) are fitted to face each other.

6. The suction muffler for a refrigerating compressor with a replaceable inlet and outlet duct according to claim 3, wherein a housing fixing engaging leg (16) is formed at a peripheral edge portion of a right outer wall of the left housing (1) in a spaced state, an engaging leg seat (26) is formed at a peripheral edge portion of a left outer wall of the right housing (2) in a spaced state at a position corresponding to the housing fixing engaging leg (16), an engaging leg fitting hole (261) is formed in the engaging leg seat (26), the left housing (1) and the right housing (2) are fixed in a face-to-face state by engaging the housing fixing engaging leg (16) into the engaging leg fitting hole (261), and simultaneously, the front end of the inlet duct (4) is sandwiched between the left housing engaging seat (121) and the right housing inlet duct engaging seat (221), the lower end of the outlet duct (5) is sandwiched between the left engaging groove (1311) and the outlet duct seat (2311), and the left peripheral edge portion of the right housing (2) is sealed at the right housing engaging groove (27) and the right housing engaging groove (27) is sealed at the right housing engaging groove (27).

7. The suction muffler of a refrigerating compressor with replaceable inlet and outlet pipes according to claim 2 or 3, wherein the depth and height of the left-shell silencing chamber I (111) and the depth and height of the left-shell silencing chamber II (112) are the same as each other, the width of the left-shell silencing chamber I (111) is two to three times that of the left-shell silencing chamber II (112), the depth and height of the right-shell silencing chamber I (211) and the depth and height of the right-shell silencing chamber II (212) are the same as each other, the width of the right-shell silencing chamber I (211) is two to three times that of the right-shell silencing chamber II (212), and the depth, height and width of the left-shell silencing chamber I (111) and the depth and height of the right-shell chamber I (211) and the depth and height of the left-shell chamber II (112) and the height of the left-shell chamber II (112) are the same as each other.

8. The suction muffler of a refrigerating compressor with replaceable inlet and outlet pipes according to claim 1, wherein a left housing inlet pipe fitting flange groove (1212) is formed in the left housing inlet pipe fitting seat (121), a right housing inlet pipe fitting flange groove (2212) is formed in the right housing inlet pipe fitting seat (221), an inlet pipe fitting flange (41) is formed in the front outer wall of the inlet pipe (4), the inlet pipe fitting flange (41) is fitted in the left housing inlet pipe fitting flange groove (1212) and the right housing inlet pipe fitting flange groove (2212), and the inlet pipe outlet (42) of the inlet pipe (4) is communicated with the left housing silencing chamber i (111) and the right housing silencing chamber i (211).

9. The suction muffler of a refrigerating compressor with a replaceable inlet and outlet pipe according to claim 3, wherein an outlet pipe base (51) is formed on the outer wall of the lower end of the outlet pipe (5) and around the outer wall of the outlet pipe (5), the outlet pipe base (51) is held between the outlet pipe base left caulking groove (1311) and the outlet pipe base right caulking groove (2311), an outlet pipe fitting pipe section (52) is extended at the lower end of the outlet pipe (5) and at the center of the downward side of the outlet pipe base (51), the left flap outlet pipe fitting (312) and the right flap outlet pipe fitting (322) are fitted with the outlet pipe fitting pipe section cavity (521) of the outlet pipe fitting pipe section (52) in a face-to-face fit state, and the outlet pipe fitting pipe section cavity (521) communicates with the complete communicating pipe cavity formed by the engagement of the left flap (31) and the right flap (32) and with the outlet pipe cavity (53) of the outlet pipe (5).

10. The suction muffler of a refrigerating compressor with replaceable inlet and outlet pipes according to claim 9, wherein a pair of outlet pipe mounting positioning seats (54) are formed on the outer wall of the middle portion of the outlet pipe (5) and on the left side of the outer wall, and a refrigerating compressor cylinder inlet port fitting (55) is formed on the upper end of the outlet pipe (5), the fitting chamber outlet port (5511) of the fitting chamber (551) of the refrigerating compressor cylinder inlet port fitting (55) faces leftward, and the outlet pipe chamber (53) communicates with the fitting chamber (551); a filter screen (6) is arranged between the top end surface of the left pipe flap air outlet pipe inserting and matching head (312) and the right pipe flap air outlet pipe inserting and matching head (322) which are matched face to face and the step surface (56) at the lower end of the air outlet pipe (5).

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