Air inlet and exhaust pipe fitting for refrigeration compressor

Abstract

The utility model discloses an air inlet and outlet pipe fitting for a refrigeration compressor, and relates to the technical field of air inlet and outlet pipe fittings for compressors. A threaded groove is formed in the circumferential side face of the first pipe body, a plurality of limiting rods are slidably matched with the inner wall of the first pipe body and located below the threaded groove, and a second pipe body is clamped and matched between the limiting rods. The first irregular closed head and the first closed hole are attached to each other, and the second irregular closed head and the second closed hole are attached to each other, so that gas circulating in the first pipe body cannot flow out, and gas in the first pipe body and the second pipe body is prevented from leaking out in the inserting process; the sealing performance of the first pipe body and the second pipe body is guaranteed, through the interaction between the first irregular closed head and the second irregular closed head and the insertion matching between the limiting rod and the circular groove, the insertion process between the first pipe body and the second pipe body is simpler, and the operation efficiency of workers is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of inlet and outlet pipe fittings for compressors, in particular to an inlet and outlet pipe fitting for a refrigeration compressor. Background Art

[0002] The refrigerator compressor is mainly used to compress the refrigerator refrigerant. There are three pipes on the compressor. One is connected to a relatively thin pipe, which is a high-pressure pipe (exhaust pipe). The refrigerant is compressed by the compressor and discharged, and the temperature is relatively high; one is connected to a copper pipe with a diameter of about 8mm, which is a low-pressure pipe (return air pipe). The refrigerant flows back into the compressor after the pressure is changed, and the relative temperature is low, about the same as the ambient temperature (when there is too much refrigerant, the return air pipe will be frosted); the other one is welded with a section of the pipe, blocked by welding or sealed with ultrasonic welding, which is a compressed process pipe. The process pipe is the same size as the return air pipe.

[0003] The existing inlet and outlet pipes of the refrigeration compressor are prone to gas leakage during the plugging process, and the plugging and installation process is cumbersome, which increases the operating burden of the workers and reduces the installation efficiency of the workers. Utility Model Content

[0004] The purpose of the utility model is to provide an inlet and exhaust pipe fitting for a refrigeration compressor, by which a first irregular closing head and a first closing hole are fitted together, and a second irregular closing head and a second closing hole are fitted together, so that the gas flowing in the first tube body cannot flow out, and through the interaction between the first irregular closing head and the second irregular closing head, and the plug-in cooperation between the limit rod and the circular groove, the plug-in process between the tube bodies is simplified, which solves the problem that the inlet and exhaust pipe fittings of the existing refrigeration compressor are prone to gas leakage in the tube during the plug-in process, and the plug-in installation process is cumbersome, which increases the operating burden of the workers and reduces the installation efficiency of the workers.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is an inlet and outlet pipe fitting for a refrigeration compressor, comprising a first pipe body; a thread groove is arranged on the peripheral side of the first pipe body, a plurality of limit rods are slidably fitted on the inner wall of the first pipe body below the thread groove, and a second pipe body is snap-fitted between the plurality of limit rods.

[0007] A first flow limiting plate is fixed to the inner wall of the first tube body, a first sliding rod is slidably fitted with the inner center position of the first flow limiting plate, a first irregular closing head is fixed to the bottom of the first sliding rod, a first spring sleeved on the first sliding rod is fixed to the top of the first irregular closing head and the bottom of the first flow limiting plate, a first baffle is fixed to the inner wall of the first tube body, and a first closing hole that fits with the first irregular closing head is opened on the top of the first baffle.

[0008] A second flow limiting plate is fixed to the inner wall of the second tube body, a second slide rod is slidably fitted with the inner center position of the second flow limiting plate, a second irregular closing head is fixed to the top of the second slide rod, a second elastic spring sleeved on the second slide rod is fixed to the bottom of the second irregular closing head and the top of the second flow limiting plate, a second baffle is fixed to the inner wall of the second tube body, and a second closing hole that fits with the second irregular closing head is opened on the top of the second baffle.

[0009] The utility model is further configured such that a plurality of first flow limiting holes are opened on the top of the first flow limiting plate, and a plurality of second flow limiting holes are opened on the top of the second flow limiting plate.

[0010] The thread groove is threadedly matched with a threaded barrel, and the bottom of the threaded barrel is provided with an outer convex barrel.

[0011] The utility model is further configured such that the top of the second tube body is plugged into the bottom of the first tube body, and a circular groove plugged into a plurality of the limit rods is provided on the outer peripheral side of the second tube body.

[0012] The utility model is further configured that a limiting ring is fixed on the inner wall of the second tube body, a plurality of threaded rods are fixed on the bottom of the limiting ring, and threaded blocks are threadedly matched on the peripheral side surfaces of the plurality of threaded rods.

[0013] The utility model is further configured that the peripheral side surfaces of the plurality of threaded rods are slidably matched with filter plates between the limit ring and the plurality of threaded blocks, the top of the filter plate is provided with a plurality of connecting holes, and the threaded rods are slidably matched with the connecting holes.

[0014] The utility model is further configured that a first flange seat is fixed to the outer peripheral side of the second tube body, and a third tube body is snap-fitted to the bottom of the second tube body.

[0015] The utility model is further configured that a second flange seat is fixed to the outer peripheral side of the third tube body, and the first flange seat and the second flange seat can be fixedly connected by bolts.

[0016] The utility model is further configured that a sealing ring is provided between the second tube body and the third tube body.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, the first irregular closed head fixed at the bottom of the first slide rod and the first closed hole opened at the top of the first baffle plate are fitted together, and the second irregular closed head fixed at the top of the second slide rod and the second closed hole opened at the top of the second baffle plate are fitted together, so that the gas flowing in the first tube body cannot flow out, and the gas in the first tube body and the second tube body is prevented from leaking out during the plug-in process, thereby ensuring the sealing of the first tube body and the second tube body.

[0019] 2. The utility model inserts the top of the second tube body into the bottom of the first tube body, so that the bottom of the first irregular closing head fixed at the bottom of the first slide bar and the top of the second irregular closing head fixed at the top of the second slide bar contact each other, so that the first irregular closing head and the second irregular closing head are simultaneously subjected to opposite forces, driving the first irregular closing head to move upward and the second irregular closing head to move downward, so that the first irregular closing head fixed at the bottom of the first slide bar and the first closing hole opened at the top of the first baffle are separated from each other, and the second irregular closing head fixed at the top of the second slide bar and the second closing hole opened at the top of the second baffle are connected. Separated from each other, the gas in the first tube body can flow to the second tube body through the several first flow limiting holes opened on the top of the first flow limiting plate and the first closed hole opened on the top of the first baffle plate in sequence, and pass through the second tube body, the second closed hole opened on the top of the second baffle plate, and the several second flow limiting holes opened on the top of the second flow limiting plate in sequence. At this time, the threaded cylinder with threads on the threaded groove can be rotated downward to make the inner wall of the outer convex cylinder contact with the several limit rods that slide with the inner wall of the first tube body until the limit rods are plugged into the circular groove, so as to realize the plug-in installation between the first tube body and the second tube body. The specific plug-in process is simple, which improves the operating efficiency of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The present invention is a schematic diagram of the structure of an inlet and outlet pipe fitting for a refrigeration compressor.

[0022] Figure 2 is a cross-sectional view of the first tube body.

[0023] Figure 3 is a cross-sectional view of the second tube body.

[0024] Figure 4 Schematic diagram of the explosion of the second tube body and the filter plate.

[0025] Figure 5 It is a structural schematic diagram of a threaded barrel.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-first tube body, 2-second tube body, 3-threaded cylinder, 4-threaded block, 101-threaded groove, 102-limiting rod, 103-first flow limiting plate, 104-first flow limiting hole, 105-first sliding rod, 106-first irregular closing head, 107-first elastic spring, 108-first baffle, 109-first closing hole, 201-second flow limiting plate, 202-second flow limiting hole, 203-second sliding rod, 204-second irregular closing head, 205-second elastic spring, 206-second baffle, 207-second closing hole, 208-circular groove, 209-limiting ring, 210-threaded rod, 211-filter plate, 212-connecting hole, 213-first flange seat, 214-threaded block, 301-outer convex cylinder, 401-second flange seat. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0030] See also Figure 1-5The utility model is an inlet and outlet pipe fitting for a refrigeration compressor, comprising a first tube body 1; a thread groove 101 is arranged on the outer peripheral side of the first tube body 1, a plurality of limit rods 102 are slidably matched with the inner wall of the first tube body 1 below the thread groove 101, and a second tube body 2 is clamped and matched between the plurality of limit rods 102; a first flow limiting plate 103 is fixed to the inner wall of the first tube body 1, a first slide bar 105 is slidably matched with the inner center position of the first flow limiting plate 103, a first irregular closing head 106 is fixed to the bottom of the first slide bar 105, a first spring 107 sleeved and matched on the first slide bar 105 is fixed to the top of the first irregular closing head 106 and the bottom of the first flow limiting plate 103, and the first tube body 1 is provided with a plurality of limit rods 102, and the first flow limiting plate 103 ... A first baffle 108 is fixed to the wall, and a first closed hole 109 is formed on the top of the first baffle 108 and is fitted with the first irregular closed head 106; a second flow limiting plate 201 is fixed to the inner wall of the second tube body 2, and a second slide bar 203 is slidably fitted with the inner center position of the second flow limiting plate 201, a second irregular closed head 204 is fixed to the top of the second slide bar 203, a second elastic spring 205 which is sleeved on the second slide bar 203 is fixed to the bottom of the second irregular closed head 204 and the top of the second flow limiting plate 201, a second baffle 206 is fixed to the inner wall of the second tube body 2, and a second closed hole 207 is formed on the top of the second baffle 206 and is fitted with the second irregular closed head 204.

[0031] Specifically, a plurality of first flow limiting holes 104 are formed on the top of the first flow limiting plate 103 , and a plurality of second flow limiting holes 202 are formed on the top of the second flow limiting plate 201 ; a threaded barrel 3 is threadedly matched on the threaded groove 101 , and an outer convex barrel 301 is provided at the bottom of the threaded barrel 3 .

[0032] Furthermore, the outer top of the second tube body 2 is plugged into the inner bottom of the first tube body 1 , and the outer peripheral side of the second tube body 2 is provided with a circular groove 208 plugged into and matched with a plurality of limiting rods 102 .

[0033] The operation process of this embodiment is as follows: the first tube body 1 is connected to the tube opening closest to the refrigeration compressor. In the initial state, the first irregular closed head 106 fixed at the bottom of the first sliding rod 105 and the first closed hole 109 opened at the top of the first baffle 108 are fitted together, and the second irregular closed head 204 fixed at the top of the second sliding rod 203 and the second closed hole 207 opened at the top of the second baffle 206 are fitted together, so that the gas flowing in the first tube body 1 and the second tube body 2 cannot flow out, and the gas in the first tube body 1 is prevented from leaking during the plugging process, thereby ensuring the sealing of the first tube body 1 and the second tube body 2; when the outer top of the second tube body 2 is plugged into the inner bottom of the first tube body 1, the bottom of the first irregular closed head 106 fixed at the bottom of the first sliding rod 105 and the top of the second irregular closed head 204 fixed at the top of the second sliding rod 203 are in contact with each other, so that the first irregular closed head 106 and the second irregular closed head 204 are simultaneously subjected to reverse forces, driving the first irregular closed head 106 to move upward and the second irregular closed head 204 to move downward The first irregular closed head 106 fixed at the bottom of the first slide bar 105 and the first closed hole 109 opened at the top of the first baffle 108 are separated from each other, and the second irregular closed head 204 fixed at the top of the second slide bar 203 and the second closed hole 207 opened at the top of the second baffle 206 are separated from each other, and the gas in the first tube body 1 can sequentially pass through the plurality of first flow limiting holes 104 opened at the top of the first flow limiting plate 103, the first closed hole 109 opened at the top of the first baffle 108, and flow to the second tube body 2, and sequentially pass through the first irregular closed head 204 fixed at the top of the second slide bar 203 and the second closed hole 207 opened at the top of the second baffle 206. In the second tube body 2, a second closed hole 207 is provided on the top of the second baffle 206, and several second flow limiting holes 202 are provided on the top of the second flow limiting plate 201. At this time, the threaded cylinder 3 with the threaded groove 101 can be rotated downward, so that the inner wall of the outer convex cylinder 301 contacts with several limiting rods 102 that slide with the inner wall of the first tube body 1 until the limiting rod 102 is plugged into the circular groove 208, so as to realize the plug-in installation between the first tube body 1 and the second tube body 2. The specific plug-in process is simple, which improves the operating efficiency of workers. Specific embodiment 2

[0035] See also Figure 1-5 On the basis of the first specific embodiment, a limiting ring 209 is fixed on the inner wall of the second tube body 2, a plurality of threaded rods 210 are fixed on the bottom of the limiting ring 209, and threaded blocks 214 are threadedly matched on the side surfaces of the plurality of threaded rods 210.

[0036] Specifically, filter plates 211 are slidably fitted on the side surfaces of the plurality of threaded rods 210 between the limiting ring 209 and the plurality of threaded blocks 214 .

[0037] Furthermore, a plurality of connection holes 212 are formed on the top of the filter plate 211 , and the threaded rods 210 are slidably matched with the connection holes 212 .

[0038] The operation process of this embodiment is: by sliding the multiple connecting holes 212 opened on the top of the filter plate 211 to fit respectively to the side surface of the threaded rod 210 fixed at the bottom of the limiting ring 209, and then rotating the threaded block 214 that is threadedly engaged with the side surface of the threaded rod 210, the filter plate 211 structure can filter impurities in the gas passing through the second tube body 2, making it easy to replace the filter plate 211 multiple times and avoiding blockage of the second tube body 2. Specific embodiment three

[0040] See also Figure 1-5 On the basis of the specific embodiment 1 and the specific embodiment 2, a first flange seat 213 is fixed to the outer peripheral side of the second tube body 2, and a third tube body 4 is snap-fitted to the bottom of the second tube body 2.

[0041] Specifically, a second flange seat 401 is fixed to the outer peripheral side of the third tube body 4 , and the first flange seat 213 and the second flange seat 401 can be fixedly connected by bolts.

[0042] Furthermore, a sealing ring is provided between the second tube body 2 and the third tube body 4 .

[0043] The operation process of this embodiment is: by connecting the third tube body 4 with the exhaust pipe, and fixing the first flange seat 213 and the second flange seat 401 by bolts, the sealing ring set between the second tube body 2 and the third tube body 4 can prevent gas leakage.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An inlet and outlet pipe fitting for a refrigeration compressor, comprising a first pipe body (1); Features: The outer peripheral side surface of the first tube body (1) is provided with a thread groove (101); the inner wall of the first tube body (1) is slidably fitted with a plurality of limiting rods (102) located below the thread groove (101); and the second tube body (2) is snap-fitted between the plurality of limiting rods (102); A first flow limiting plate (103) is fixed to the inner wall of the first tube body (1), a first slide bar (105) is slidably matched at the center position of the first flow limiting plate (103), a first irregular closing head (106) is fixed to the bottom of the first slide bar (105), a first spring (107) sleeved and matched on the first slide bar (105) is fixed to the top of the first irregular closing head (106) and the bottom of the first flow limiting plate (103), a first baffle (108) is fixed to the inner wall of the first tube body (1), and a first closing hole (109) is opened on the top of the first baffle (108) and is mutually matched with the first irregular closing head (106); A second flow limiting plate (201) is fixed to the inner wall of the second tube body (2); a second slide bar (203) is slidably matched with the inner center position of the second flow limiting plate (201); a second irregular closing head (204) is fixed to the top of the second slide bar (203); a second elastic spring (205) sleeved and matched on the second slide bar (203) is fixed to the bottom of the second irregular closing head (204) and the top of the second flow limiting plate (201); a second baffle plate (206) is fixed to the inner wall of the second tube body (2); and a second closing hole (207) that fits with the second irregular closing head (204) is opened on the top of the second baffle plate (206).

2. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 1, It is characterized in that A plurality of first flow limiting holes (104) are formed on the top of the first flow limiting plate (103), and a plurality of second flow limiting holes (202) are formed on the top of the second flow limiting plate (201); The threaded groove (101) is threadably matched with a threaded barrel (3), and an outer convex barrel (301) is provided at the bottom of the threaded barrel (3).

3. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 2, It is characterized in that The outer top of the second tube body (2) is plugged into the inner bottom of the first tube body (1), and the outer peripheral side of the second tube body (2) is provided with a circular groove (208) plugged into a plurality of the limiting rods (102).

4. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 3, It is characterized in that A limiting ring (209) is fixed on the inner wall of the second tube body (2), a plurality of threaded rods (210) are fixed on the bottom of the limiting ring (209), and threaded blocks (214) are threadedly matched on the peripheral side surfaces of the plurality of threaded rods (210).

5. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 4, It is characterized in that A filter plate (211) is slidably fitted on the peripheral side surfaces of the plurality of threaded rods (210) between the limiting ring (209) and the plurality of threaded blocks (214); a plurality of connecting holes (212) are provided on the top of the filter plate (211); and the threaded rods (210) are slidably fitted with the connecting holes (212).

6. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 5, It is characterized in that A first flange seat (213) is fixed to the outer peripheral side surface of the second tube body (2), and a third tube body (4) is snap-fitted to the bottom of the second tube body (2).

7. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 6, It is characterized in that A second flange seat (401) is fixed to the outer peripheral side surface of the third tube body (4), and the first flange seat (213) and the second flange seat (401) can be fixedly connected by bolts.

8. An inlet and outlet pipe fitting for a refrigeration compressor according to claim 7, It is characterized in that A sealing ring is provided between the second tube body (2) and the third tube body (4).

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