Pipe sizing sleeve

Abstract

A pipe sizing sleeve comprises a sleeve body and a connecting plate arranged at an inlet of the sleeve body, a channel for pipes to pass through is arranged in the sleeve body, a plurality of first water inlet channels are annularly distributed on the connecting plate, a plurality of first water outlet channels are annularly distributed on the sleeve body, and an annular middle channel is formed between the sleeve body and the connecting plate. The first water inlet channel, the middle channel, the first water outlet channel and the channel are sequentially communicated. According to the pipe sizing sleeve disclosed by the utility model, the first water inlet channel, the middle channel and the first water outlet channel are arranged at the inlet of the sleeve body, the first water inlet channel, the middle channel, the first water outlet channel and the channels are sequentially communicated to form the lubricating water paths, and the plurality of groups of lubricating water paths form an annular water curtain effect; the pipe is lubricated by the lubricating water when passing through the inlet of the sleeve body, sleeve body abrasion and pipe shaking caused by the fact that the pipe is attached to the inner wall of the sleeve body when passing through the channel in the sleeve body are prevented, the service life of the sizing sleeve is prolonged, and influences on the appearance and quality of products are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sizing sleeves, in particular to a pipe sizing sleeve. Background Art

[0002] At present, the large-size PE sizing sleeves of 1600 and above on the market are all dry structures. The sizing sleeve includes a copper sleeve and a connecting plate set at the entrance of the copper sleeve. When the pipe passes through the channel in the copper sleeve, the pipe will easily stick to the inner wall of the copper sleeve, causing copper sleeve wear and pipe shaking, reducing the service life of the sizing sleeve and affecting the appearance and quality of the product.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide a pipe sizing sleeve with simple structure, good lubrication effect, long service life, good product quality and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A pipe sizing sleeve designed for this purpose includes a sleeve body and a connecting plate arranged at the inlet of the sleeve body. A channel for the passage of the pipe is provided in the sleeve body. The characteristic is that a plurality of first water inlet channels are distributed in an annular manner on the connecting plate, a plurality of first water outlet channels are distributed in an annular manner on the sleeve body, an annular intermediate channel is formed between the sleeve body and the connecting plate, and the first water inlet channel, the intermediate channel, the first water outlet channel and the channel are connected in sequence.

[0006] Several groups of second water inlet channels are distributed in an annular manner on the connecting plate, several nozzles are distributed in an annular manner on the outer side of the sleeve, and several second water outlet channels are distributed in an annular manner on the sleeve. The second water inlet channels, nozzles, second water outlet channels and channels are connected in sequence.

[0007] A plurality of first water inlet joints are arranged in a ring shape on the outer side of the connecting plate. The first water inlet joints correspond to the first water inlet channels one by one. One end of the first water inlet channel is connected to the first water inlet joint, and the other end of the first water inlet channel is connected to the middle channel.

[0008] The first water inlet joint, the first water inlet channel, the middle channel, the first water outlet channel and the channel are arranged in sequence from outside to inside.

[0009] A plurality of second water inlet joints are provided in a ring shape on the outer side of the connecting plate. The second water inlet joints correspond to the second water inlet channels one by one, and one end of the second water inlet channel is connected to the second water inlet joint.

[0010] There are several flow channels distributed in a ring inside the connecting plate, which correspond one-to-one to the second water inlet channels. Several through holes are provided on the flow channels, which are connected to the nozzles through conversion joints. The second water inlet channels are connected to the flow channels, and the flow channels are connected to the nozzles through the conversion joints respectively.

[0011] Multiple groups of second water outlet channels are provided, and the multiple groups of second water outlet channels are distributed on the sleeve body along the direction of the channels, and each nozzle is connected to the channels through each group of second water outlet channels.

[0012] Each first water inlet channel and each group of second water inlet channels are arranged on the connecting plate at intervals.

[0013] The number of the first water outlet channels is greater than the number of the first water inlet channels.

[0014] A water channel is provided on the outer side of the sleeve body, and an intermediate channel is formed between the water channel and the inner side wall of the connecting plate.

[0015] The pipe sizing sleeve of the utility model is provided with a first water inlet channel, an intermediate channel and a first water outlet channel at the inlet of the sleeve body. The first water inlet channel, the intermediate channel, the first water outlet channel and the channel are connected in sequence to form a lubricating water channel. The multiple groups of lubricating water channels form an annular water curtain effect, so that the lubricating water lubricates the pipe when the pipe passes through the inlet of the sleeve body, preventing the pipe from sticking to the inner wall of the sleeve when passing through the channel in the sleeve body, causing sleeve body wear and pipe shaking, thereby improving the service life of the sizing sleeve and preventing the appearance and quality of the product from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a sizing sleeve in one embodiment of the present invention.

[0017] Figure 2 It is a cross-sectional view of a sizing sleeve in one embodiment of the present invention.

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 4 This is a cross-sectional view of another aspect of the sizing sleeve in one embodiment of the present invention.

[0020] Figure 5 This is a partial structural diagram of a sizing sleeve in one embodiment of the present invention.

[0021] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0022] Figure 7 This is a schematic diagram of the overall structure of the sleeve in one embodiment of the present invention.

[0023] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0024] Figure 9 This is a schematic diagram of the overall structure of the connecting plate in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See also Figures 1-9 The present invention relates to a pipe sizing sleeve, which is applied to large-size pipes and comprises a sleeve body 1 and a connecting plate 2 arranged on the outer side of the inlet of the sleeve body 1. A channel 3 for the passage of the pipe is provided in the sleeve body 1, and the channel 3 is connected to the inlet of the sleeve body 1. A plurality of first water inlet channels 4 are annularly distributed on the connecting plate 2, and a plurality of first water outlet channels 5 are annularly distributed on the sleeve body 1. An annular intermediate channel 6 is formed between the sleeve body 1 and the connecting plate 2. The first water inlet channel 4, the intermediate channel 6, the first water outlet channel 5 and the channel 3 are connected in sequence to form a first lubricating water path. When the pipe passes through the inlet of the sleeve body 1 (that is, when the pipe just enters the sizing sleeve), the lubricating water is transported to the channel 3 through the first lubricating water path to cool, shape and lubricate the pipe. From conventional dry grinding to the current water curtain lubrication at the inlet of the sleeve body 1, the appearance and quality of the product are effectively improved, and the wear of the sleeve body 1 and the vibration of the pipe are prevented as the pipe passes through the channel 3 in the sleeve body 1 and sticks to the inner wall of the sleeve body 1; in this embodiment, four first water inlet channels 4 are provided, thus forming four first lubricating water paths.

[0027] Several groups of second water inlet channels 7 are distributed in an annular manner on the connecting plate 2, several nozzles 8 are distributed in an annular manner on the outer side of the sleeve 1, and several second water outlet channels 9 are distributed in an annular manner on the sleeve 1. The second water inlet channel 7, the nozzle 8, the second water outlet channel 9 and the channel 3 are connected in sequence to form a second lubricating water path, and the lubricating water is transported to the channel 3 through the second lubricating water path to cool and lubricate the sleeve 1, further preventing the pipe from sticking to the inner wall of the sleeve 1 when passing through the channel 3 in the sleeve 1 and causing wear of the sleeve 1.

[0028] A plurality of first water inlet joints 10 are provided in a ring shape on the outer side of the connecting plate 2. The first water inlet joints 10 correspond one-to-one to the first water inlet channel 4. One end of the first water inlet channel 4 is connected to the first water inlet joint 10, and the other end of the first water inlet channel 4 is connected to the intermediate channel 6. The first water inlet joint 10 is used to connect to the water source. A plurality of first water inlet holes 16 are provided in a ring shape on the outer side of the connecting plate 2. The first water inlet joint 10 is installed on the first water inlet hole 16. The first water inlet joint 10 is connected to the first water inlet channel 4 through the first water inlet hole 16.

[0029] The first water inlet joint 10, the first water inlet channel 4, the middle channel 6, the first water outlet channel 5 and the channel 3 are arranged in sequence from the outside to the inside.

[0030] A plurality of second water inlet joints 11 are provided in a ring shape on the outer side of the connecting plate 2. The second water inlet joints 11 correspond one-to-one to the second water inlet channel 7. One end of the second water inlet channel 7 is connected to the second water inlet joint 11. The second water inlet joint 11 is used to connect to the water source. A plurality of second water inlet holes 17 are provided in a ring shape on the outer side of the connecting plate 2. The second water inlet joint 11 is installed on the second water inlet hole 17. The second water inlet joint 11 is connected to the second water inlet channel 7 through the second water inlet hole 17; each second water inlet channel 7 is independently supplied with water, which effectively solves the water grabbing phenomenon that causes some nozzles 8 to have uneven cooling of the sleeve 1 due to insufficient water supply.

[0031] A plurality of flow channels 12 are distributed in an annular manner inside the connecting plate 2, and the flow channels 12 correspond one-to-one to the second water inlet channels 7. A plurality of through holes 13 are provided on the flow channels 12, and the through holes 13 are connected to the nozzles 8 through the conversion joints 14. The second water inlet channel 7 is connected to the flow channels 12, and the flow channels 12 are connected to the nozzles 8 through the conversion joints 14 respectively. In this embodiment, three through holes 13 are provided, and the water in the second water inlet channel 7 is diverted through the flow channels 12, so that the cooling of the sleeve 1 is more uniform; one end of the nozzle 8 is connected to the conversion joint 14, and the other end is connected to the second water outlet channel 9.

[0032] A plurality of grooves 18 are distributed in an annular pattern on the connecting plate 2 . A cover plate 19 is provided on the groove 18 . A flow channel 12 is formed between the cover plate 19 and the connecting plate 2 . The through hole 13 is provided on the cover plate 19 .

[0033] Three groups of second water outlet channels 9 are provided, and the three groups of second water outlet channels 9 are distributed on the sleeve 1 along the direction of the channel 3. Each group of second water outlet channels 9 is distributed in a ring shape on the sleeve 1. Each nozzle 8 is connected to the channel 3 through each group of second water outlet channels 9, and the number of each group of second water outlet channels 9 is greater than the number of nozzles 8, that is, each nozzle 8 is connected to the channel 3 through multiple second water outlet channels 9, which further makes the cooling of the sleeve 1 more uniform.

[0034] Each first water inlet channel 4 and each group of second water inlet channels 7 are arranged on the connecting plate 2 at intervals; in this embodiment, each group of second water inlet channels 7 is provided with 3, and 4 groups of second water inlet channels 7 are provided, that is, a total of 12 second water inlet channels 7 are provided.

[0035] The number of the first water outlet channels 5 is greater than the number of the first water inlet channels 4 , which is equivalent to diverting the water in the first water inlet channels 4 , so that the cooling and lubrication of the pipes are more uniform.

[0036] A circle of water grooves 15 is provided on the outer side of the sleeve body 1 , and an intermediate channel 6 is formed between the water grooves 15 and the inner side wall of the connecting plate 2 .

[0037] The inner wall of the sleeve 1 is respectively provided with a plurality of first water outlet holes 20 and second water outlet holes 21 in a ring shape. The first water outlet channel 5 corresponds one-to-one to the first water outlet hole 20, and the second water outlet channel 9 corresponds one-to-one to the second water outlet hole 21. The first water outlet channel 5 is connected with the channel 3 through the first water outlet hole 20, and the second water outlet channel 9 is connected with the channel 3 through the second water outlet hole 21.

[0038] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe sizing sleeve, comprising a sleeve body (1) and a connecting plate (2) arranged at the inlet of the sleeve body (1), wherein a channel (3) for the pipe to pass through is provided in the sleeve body (1), characterized in that: A plurality of first water inlet channels (4) are distributed in an annular manner on the connecting plate (2), a plurality of first water outlet channels (5) are distributed in an annular manner on the casing (1), an annular intermediate channel (6) is formed between the casing (1) and the connecting plate (2), and the first water inlet channels (4), the intermediate channel (6), the first water outlet channels (5) and the channel (3) are sequentially connected.

2. The pipe sizing sleeve according to claim 1, characterized in that: A plurality of groups of second water inlet channels (7) are distributed in an annular manner on the connecting plate (2), a plurality of nozzles (8) are distributed in an annular manner on the outer side of the sleeve (1), and a plurality of second water outlet channels (9) are distributed in an annular manner on the sleeve (1). The second water inlet channels (7), the nozzles (8), the second water outlet channels (9) and the channel (3) are connected in sequence.

3. The pipe sizing sleeve according to claim 1, characterized in that: A plurality of first water inlet joints (10) are provided in an annular manner on the outer side of the connecting plate (2), the first water inlet joints (10) corresponding to the first water inlet channels (4) one to one, one end of the first water inlet channel (4) being connected to the first water inlet joint (10), and the other end of the first water inlet channel (4) being connected to the intermediate channel (6).

4. The pipe sizing sleeve according to claim 3, characterized in that: The first water inlet joint (10), the first water inlet channel (4), the intermediate channel (6), the first water outlet channel (5) and the channel (3) are arranged in sequence from the outside to the inside.

5. The pipe sizing sleeve according to claim 2, characterized in that: A plurality of second water inlet joints (11) are provided in an annular manner on the outer side of the connecting plate (2). The second water inlet joints (11) correspond one-to-one to the second water inlet channels (7), and one end of the second water inlet channel (7) is connected to the second water inlet joint (11).

6. The pipe sizing sleeve according to claim 5, characterized in that: A plurality of flow channels (12) are distributed in an annular manner within the connecting plate (2), and the flow channels (12) correspond one to one with the second water inlet channels (7). A plurality of through holes (13) are provided on the flow channels (12), and the through holes (13) are connected to the nozzles (8) via conversion joints (14). The second water inlet channels (7) are connected to the flow channels (12), and the flow channels (12) are connected to the nozzles (8) via the conversion joints (14).

7. The pipe sizing sleeve according to claim 6, characterized in that: Multiple groups of second water outlet channels (9) are provided, and the multiple groups of second water outlet channels (9) are distributed on the sleeve body (1) along the direction of the channel (3), and each nozzle (8) is connected to the channel (3) through each group of second water outlet channels (9).

8. The pipe sizing sleeve according to claim 2, characterized in that: Each first water inlet channel (4) and each group of second water inlet channels (7) are arranged on the connecting plate (2) at intervals.

9. The pipe sizing sleeve according to claim 1, characterized in that: The number of the first water outlet channels (5) is greater than the number of the first water inlet channels (4).

10. The pipe sizing sleeve according to claim 1, characterized in that: A water channel (15) is provided on the outer side of the sleeve body (1), and an intermediate channel (6) is formed between the water channel (15) and the inner side wall of the connecting plate (2).

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