Pipe fitting connecting end telescoping mechanism

Abstract

The utility model relates to the technical field of refrigeration pipe fittings, in particular to a pipe fitting connecting end telescopic mechanism which comprises a pipe fitting connecting end body, a first flange is fixed to the end side of the pipe fitting connecting end body, a corrugated pipe capable of being adjusted in a telescopic mode is installed at the other end of the pipe fitting connecting end body, and a second flange is fixed to the end side of the corrugated pipe. A second flange is installed on the end side of the corrugated pipe, and a sealing ring is installed outside the second flange. According to the pipe fitting connecting end telescopic mechanism, the control rod is pushed to drive the gear ring to rotate around the sleeve, the gear ring rotates to be meshed with the gear, the gear is stressed to drive the screw rod to rotate, and the sliding rod outside the screw rod slides and pulls the corrugated pipe to extend, so that the pipe fitting connecting end can be adjusted according to the connecting distance between pipelines, and a worker can conveniently use the pipe fitting connecting end telescopic mechanism; the sealing ring is installed between the pipeline and the pipe fitting connecting end, sealing and reinforcing are carried out through the sealing ring, leakage is not prone to occurring in the follow-up using process, and the using sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration pipe fittings, and particularly relates to a telescopic mechanism for the connecting end of a pipe fitting. Background Technique

[0002] Refrigeration equipment (such as refrigerators, freezers, wine cabinets) is a commonly used electrical appliance in people's daily life. There is usually a refrigeration system in the refrigeration equipment. Generally, the refrigeration system is composed of a compressor, a condenser and an evaporator, and can achieve low-temperature refrigeration.

[0003] First, the refrigerant is transmitted from the compressor through the condenser and the expansion valve to the evaporator through the pipeline, and then the refrigerant vaporized after passing through the evaporator is sent into the compressor through the pipeline. A refrigeration pipe is installed between the compressor and the condenser for connection.

[0004] When installing the refrigeration pipe, it will be restricted when the distance between the refrigeration pipe and the condenser is too long. Therefore, it is necessary to use the connecting end of the pipe fitting for installation. Most of the existing pipe fittings on the market are of fixed structure. When there is an error in the pipe length or the pipe cools and shrinks, the connecting end is not easy to extend, making the installation very difficult. Moreover, the connection is not tight during installation, which is likely to cause leakage and reduce the sealing performance during use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a telescopic mechanism for the connecting end of a pipe fitting to solve the problems that the existing connecting end of the pipe fitting is not convenient for telescopic adjustment and the connection is not tight as mentioned in the above background technique. To achieve the above purpose, the utility model provides the following technical solution: A telescopic mechanism for the connecting end of a pipe fitting, including the main body of the pipe fitting connecting end. A first flange is fixed on the end side of the main body of the pipe fitting connecting end. A telescopic and adjustable bellows is installed at the other end of the main body of the pipe fitting connecting end. A second flange is installed on the end side of the bellows. A sealing ring is installed outside the second flange.

[0006] Preferably, a sleeve is sleeved on the outer periphery of the main body of the pipe fitting connecting end. Slots are opened on the outer wall of the sleeve, and there are multiple slots.

[0007] Preferably, a toothed ring is rotatably sleeved on the end side of the sleeve. A control rod is fixed on the end side of the toothed ring. A pin penetrates through the inside of the control rod, and the pin is inserted into the slot.

[0008] Preferably, a support shaft is fixed on the side wall of the sleeve. A gear is rotatably sleeved on the outside of the support shaft. The gear meshes with the toothed ring. A screw rod is fixed on the end side of the gear. A sliding rod is threadedly sleeved on the outside of the screw rod. The sliding rod is fixedly connected with the second flange.

[0009] Preferably, there are two sealing rings. A limiting rod passes through the middle of the two sealing rings. A screw groove is formed on the end side of the limiting rod, and a nut is threadedly sleeved outside the screw groove.

[0010] Preferably, a pipe is installed on the end side of the second flange through bolts.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In the present utility model, pushing the control rod drives the gear ring to rotate around the sleeve. The rotation of the gear ring meshes with the gear, and the force on the gear drives the screw to rotate. The sliding rod outside it then slides and pulls the corrugated pipe to extend, so that the connecting end of the pipe fitting can be adjusted according to the connection distance between the pipes, which is convenient for the staff to use.

[0013] In the present utility model, a sealing ring is installed between the pipe and the connecting end of the pipe fitting, and the sealing is strengthened through the sealing ring, so that it is not easy to leak during subsequent use, and the sealing performance during use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is an isometric view of the overall structure of the present utility model;

[0016] Figure 3 is the Figure 2 magnified schematic diagram of part A in the present utility model.

[0017] In the figure:

[0018] 1. Body of the connecting end of the pipe fitting;

[0019] 2. First flange;

[0020] 3. Corrugated pipe; 31. Sleeve; 32. Slot; 33. Gear ring; 34. Control rod; 35. Plug; 36. Support shaft; 37. Gear; 38. Screw; 39. Sliding rod;

[0021] 4. Second flange;

[0022] 5. Sealing ring; 51. Limiting rod; 52. Screw groove; 53. Nut;

[0023] 6. Pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a telescopic mechanism for the connection end of a pipe fitting, including a pipe fitting connection end body 1, a first flange 2 is fixed on the end side of the pipe fitting connection end body 1, a telescopic and adjustable bellows 3 is installed at the other end of the pipe fitting connection end body 1, a second flange 4 is installed on the end side of the bellows 3, and a sealing ring 5 is installed outside the second flange 4.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, a sleeve 31 is sleeved on the outer periphery of the pipe fitting connection end body 1, and a plurality of slots 32 are opened on the outer wall of the sleeve 31.

[0027] It should be noted that the pin 35 passes through the slot 32 to limit the toothed ring 33, so as to prevent the toothed ring 33 from rotating and affecting the stability during use after telescopic adjustment.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, a toothed ring 33 is rotatably sleeved on the end side of the sleeve 31, a control rod 34 is fixed on the end side of the toothed ring 33, a pin 35 penetrates through the inside of the control rod 34, and the pin 35 is inserted into the slot 32.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, a support shaft 36 is fixed on the side wall of the sleeve 31, a gear 37 is rotatably sleeved on the outside of the support shaft 36, the gear 37 meshes with the toothed ring 33, a screw rod 38 is fixed on the end side of the gear 37, and a slide rod 39 is threadedly sleeved on the outside of the screw rod 38, and the slide rod 39 is fixedly connected to the second flange 4.

[0030] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, there are two sealing rings 5, a limiting rod 51 penetrates through the middle of the two sealing rings 5, a thread groove 52 is opened on the end side of the limiting rod 51, and a nut 53 is threadedly sleeved on the outside of the thread groove 52.

[0031] It should be noted that the sealing rings 5 are symmetrically arranged and can fit together. After the second flange 4 and the pipeline 6 are connected, the sealing rings 5 are installed at the connecting interface and reinforced, so as to increase the tightness of the connection.

[0032] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the pipeline 6 is installed on the end side of the second flange 4 through bolts.

[0033] It should be noted that a flange ring is installed on the end side of the pipeline 6, and the flange ring is connected to the second flange 4 through bolts. This technical solution belongs to the prior art in this field, so it will not be described in detail.

[0034] The usage method and advantages of the present utility model: When the telescopic mechanism at the connecting end of the pipe fitting works, the working process is as follows:

[0035] As Figure 1 , Figure 2 and Figure 3 shown, when the telescopic adjustment of the connecting end of the pipe fitting is carried out, by pushing the control rod 34 to drive the gear ring 33 to rotate around the sleeve 31, when the gear ring 33 rotates, it meshes with the gear 37, the gear 37 is forced to rotate around the support shaft 36, and at the same time, the screw rod 38 at the end side of the gear 37 also rotates accordingly. The sliding rod 39 sleeved on the external thread of the screw rod 38 then drives the second flange 4 to expand and move, and then can pull the corrugated pipe 3 to extend, so that the connecting end of the pipe fitting can be adjusted according to the connection distance between the pipelines 6, so as to be applicable to the connection between the pipelines 6 and facilitate the use of the staff;

[0036] After adjusting to the appropriate length, the through pin 35 is inserted into the slot 32 in the sleeve 31 for limiting, so that it cannot shake during subsequent use and the stability of use is improved;

[0037] The pipeline 6 is connected to the second flange 4 at the end side of the pipe fitting connection end body 1 through bolts. After the connection, the sealing ring 5 is sleeved at the connection interface between the two. Then, the limiting rod 51 is inserted through the two sealing rings 5, and the rotating nut 53 rotates along the thread groove 52 of the limiting rod 51 and fits against the side wall of the sealing ring 5 to reinforce and seal the connection, so that it is not easy to leak during subsequent use and the sealing performance of use is improved.

[0038] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe connection end telescopic mechanism, comprising a pipe connection end body (1), characterized in that: A first flange (2) is fixed to the end side of the pipe connection end body (1), a telescopically adjustable bellows (3) is installed at the other end of the pipe connection end body (1), a second flange (4) is installed at the end side of the bellows (3), and a sealing ring (5) is installed on the outside of the second flange (4).

2. A pipe fitting connection end telescopic mechanism according to claim 1, characterized in that: A sleeve (31) is sleeved on the outer periphery of the pipe fitting connection end body (1), and a slot (32) is provided on the outer wall of the sleeve (31), wherein a plurality of slots (32) are provided.

3. A pipe connection end telescopic mechanism according to claim 2, characterized in that: The end side of the sleeve (31) is rotatably sleeved with a gear ring (33), the end side of the gear ring (33) is fixed with a control rod (34), the interior of the control rod (34) is penetrated by a latch (35), and the latch (35) is plugged into the slot (32).

4. A pipe connection end telescopic mechanism according to claim 2, characterized in that: A support shaft (36) is fixed to the side wall of the sleeve (31), a gear (37) is rotatably sleeved on the outside of the support shaft (36), the gear (37) is meshed with the gear ring (33), a screw rod (38) is fixed to the end side of the gear (37), a sliding rod (39) is threadedly sleeved on the outside of the screw rod (38), and the sliding rod (39) is fixedly connected to the second flange (4).

5. The pipe connection end telescopic mechanism according to claim 1, characterized in that: Two sealing rings (5) are provided, and a limiting rod (51) runs through the middle of the two sealing rings (5). A screw groove (52) is provided on the end side of the limiting rod (51), and a nut (53) is sleeved on the external thread of the screw groove (52).

6. A pipe connection end telescopic mechanism according to claim 1, characterized in that: A pipe (6) is mounted on the end side of the second flange (4) via bolts.

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