Pressure-bearing type wear-resistant pipeline connector

Abstract

The utility model discloses a pressure-bearing type wear-resisting pipeline connector which comprises an inner pipe, a sleeve is connected to the outer wall of the inner pipe in a sliding and sleeved mode, flanges are fixedly connected to the ends, away from each other, of the sleeve and the inner pipe, a plurality of sealing rings are embedded in the end, located in the sleeve, of the inner pipe, and a connecting ring is fixedly connected to the outer wall of the inner pipe in a sleeved mode. The end face, facing the sleeve, of the connecting ring is circumferentially distributed and fixedly connected with a plurality of screws, the end, close to the inner pipe, of the sleeve is fixedly sleeved with a sleeve shell, the outer wall of the sleeve shell is fixedly connected with an annular cover plate through a plurality of screws, and the screws penetrate through the sleeve shell and the annular cover plate. When the pipeline connector is used, an electric wrench is used for driving the bolt head to rotate, the gears in the sleeve shell can be driven to rotate through the driving mechanism, then the gears are matched with the screw threads of the screw rod to drive the inner pipe to move, the size of the inner pipe extending into the sleeve is adjusted, and therefore the overall length of the pipeline connector can be conveniently adjusted; operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a pressure-bearing wear-resistant pipeline connector. Background Art

[0002] The expansion joint is a kind of pipe connector, which is mainly used in the installation and maintenance of the pipeline system. It is adjusted according to the installation size on site. When working, it can transmit the axial thrust back to the entire pipeline system. This not only improves work efficiency, but also plays a certain protective role for pipeline equipment such as pumps and valves.

[0003] However, most of the existing expansion joints are fixedly connected by extension screws. Since there are many extension screws, it is necessary to operate the nuts on each extension screw when adjusting the expansion and contraction. Moreover, since the nuts are usually far away from the ends of the extension screws and close to the outer wall of the pipe, it is not convenient to operate with electric tools and can only be operated manually with a wrench, which is time-consuming and labor-intensive, very inconvenient, and needs to be improved. Utility Model Content

[0004] The utility model aims to provide a pressure-bearing wear-resistant pipe connector to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pressure-bearing wear-resistant pipe connector comprises an inner tube, the outer wall of the inner tube is slidably sleeved with a sleeve, the ends of the sleeve and the inner tube that are away from each other are fixedly connected with flanges, the end of the inner tube located in the sleeve is nested with multiple sealing rings, the outer wall of the inner tube is fixedly sleeved with a connecting ring, the connecting ring is fixedly connected with multiple screws in a circumferential distribution toward the end face of the sleeve, the end of the sleeve close to the inner tube is fixedly sleeved with a casing, the outer wall of the casing is fixedly connected with an annular cover plate by multiple screws, multiple screws penetrate the casing and the annular cover plate, multiple gears are rotatably connected in the casing, and the gears are sleeved on the corresponding screws by internal thread cooperation, a driving mechanism is provided on the casing, the outer side of the casing is rotatably connected with a bolt head, and the bolt head is transmission connected to each gear through the driving mechanism.

[0007] As a further solution of the utility model: a worm wheel is rotatably installed in the casing, the gears are all located on the inner side of the worm wheel, an internal tooth groove is provided on the inner circumferential wall of the worm wheel, and the gears are all meshed with the internal tooth groove, a worm is rotatably connected in the casing, the worm is meshed with the worm wheel, and one end of the worm is fixedly connected to the bolt head after passing through the casing.

[0008] As a further solution of the utility model: positioning grooves are provided on both side end faces of the gear, and positioning rings are fixedly connected to the corresponding positions of each gear on the inner wall of the housing and the outer wall of the annular cover plate, the positioning rings are located in the corresponding positioning grooves, and the screw passes through the corresponding positioning rings.

[0009] As a further solution of the utility model: the inner wall of the sleeve and the outer wall of the annular cover plate are fixedly connected with positioning rings at the corresponding positions of the worm wheel, and the two side end faces of the worm wheel and the corresponding positions of the positioning ring are provided with annular grooves, and the positioning rings are located in the corresponding annular grooves.

[0010] As a further solution of the utility model: the inner walls of the sleeve and the inner tube are both provided with polytetrafluoroethylene linings, and the outer wall of the sealing ring fits with the inner wall of the polytetrafluoroethylene lining in the sleeve.

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

[0012] When the utility model is in use, it is only necessary to use an electric wrench to drive the bolt head to rotate, so that the various gears in the sleeve shell can be driven to rotate through the driving mechanism, and then the inner tube is driven to move by utilizing the gear and the threaded joint of the screw rod to adjust the size of the inner tube extending into the sleeve, thereby facilitating the adjustment of the overall length of the pipe connector, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a structural schematic diagram of a pressure-bearing wear-resistant pipe connector.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 The figure is a schematic diagram of the distribution structure of gears in a pressure-bearing wear-resistant pipe connector.

[0016] Among them, sleeve 1, inner tube 2, sealing ring 3, flange 4, connecting ring 5, screw 6, casing 7, annular cover plate 8, screw 9, gear 10, positioning ring 11, positioning groove 12, worm gear 13, positioning ring 14, annular groove 15, worm 16, bolt head 17. DETAILED DESCRIPTION

[0017] 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 in 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.

[0018] See also Figures 1 to 3 In the embodiment of the utility model, a pressure-bearing wear-resistant pipe connector comprises an inner tube 2, the outer wall of the inner tube 2 is slidably sleeved with a sleeve 1, the ends of the sleeve 1 and the inner tube 2 away from each other are fixedly connected with a flange 4, the end of the inner tube 2 located in the sleeve 1 is nested with a plurality of sealing rings 3, the outer wall of the inner tube 2 is fixedly sleeved with a connecting ring 5, the connecting ring 5 is circumferentially distributed and fixedly connected with a plurality of screws 6 toward the end face of the sleeve 1, the end of the sleeve 1 close to the inner tube 2 is fixedly sleeved with a sleeve shell 7, the outer wall of the sleeve shell 7 is fixedly connected with an annular cover plate 8 by a plurality of screws 9, and the plurality of screws 6 penetrate the sleeve shell 7 and the annular cover plate 8, a plurality of gears 10 are rotatably connected in the sleeve shell 7, and the gears 10 are sleeved on the corresponding screws 6 by internal thread cooperation, a driving mechanism is provided on the sleeve shell 7, the outer side of the sleeve shell 7 is rotatably connected with a bolt head 17, and the bolt head 17 is transmission-connected with each gear 10 through the driving mechanism.

[0019] By adopting the above scheme, when in use, the utility model only needs to use an electric wrench to drive the bolt head 17 to rotate, so that the gears 10 in the casing 7 can be driven to rotate through the driving mechanism, and then the inner tube 2 is driven to move by the thread cooperation between the gear 10 and the screw rod 6, so as to adjust the size of the inner tube 2 extending into the sleeve 1, thereby facilitating the adjustment of the overall length of the pipe connector, and the operation is simple and convenient.

[0020] Specific combination Figure 2 , Figure 3 In one embodiment of the utility model, a worm wheel 13 is rotatably installed in the casing 7, the gears 10 are all located on the inner side of the worm wheel 13, an inner peripheral wall of the worm wheel 13 is provided with an internal tooth groove, and the gears 10 are all meshed with the internal tooth groove, a worm 16 is rotatably connected in the casing 7, the worm 16 is meshed with the worm wheel 13, and one end of the worm 16 passes through the casing 7 and is fixedly connected to the bolt head 17.

[0021] The worm 16 is driven to rotate by the cooperation of the electric wrench and the bolt head 17, so that the worm wheel 13 can be driven to rotate in the casing 7, and then the internal tooth grooves on the inner wall of the worm wheel 13 are used to drive each gear 10 to rotate. The overall structure is simple, the operation is stable, and it is easy to produce and assemble.

[0022] Specific combination Figure 2 and Figure 3 In one embodiment of the utility model, positioning grooves 12 are provided on both side end faces of the gear 10, and positioning rings 11 are fixedly connected to the corresponding positions of each gear 10 on the inner wall of the housing 7 and the outer wall of the annular cover plate 8, and the positioning rings 11 are located in the corresponding positioning grooves 12, and the screw 6 passes through the corresponding positioning rings 11.

[0023] The cooperation between the positioning ring 11 and the positioning groove 12 can effectively position the gear 10 in the casing 7 , thereby ensuring the stability of the rotation of the gear 10 in the casing 7 .

[0024] Specific combination Figure 2 and Figure 3 In one embodiment of the utility model, a positioning ring 14 is fixedly connected to the inner wall of the sleeve 7 and the outer wall of the annular cover plate 8 at the corresponding positions of the worm gear 13, and annular grooves 15 are formed on the two side end faces of the worm gear 13 at the corresponding positions of the positioning ring 14, and the positioning ring 14 is located in the corresponding annular grooves 15.

[0025] The cooperation between the positioning groove 14 and the annular groove 15 can position the worm wheel 13 in the casing 7 , so as to ensure the stability of the rotation of the worm wheel 13 in the casing 7 .

[0026] In addition, in some preferred embodiments of the present invention, the sleeve 1 and the inner tube 2 are both made of cast iron, and the inner walls of the sleeve 1 and the inner tube 2 are both provided with polytetrafluoroethylene linings, and the outer wall of the sealing ring 3 fits with the inner wall of the polytetrafluoroethylene lining in the sleeve 1.

[0027] The sleeve 1 and inner tube 2 made of cast iron can effectively ensure the pressure-bearing performance of the pipe connector, and through the setting of the polytetrafluoroethylene lining, the inner wall of the pipe connector has good wear resistance and corrosion resistance, and is not prone to scaling and clogging problems, and the cleaning and maintenance costs are low.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pressure-bearing wear-resistant pipe connector, characterized in that: The invention comprises an inner tube (2), the outer wall of the inner tube (2) is slidably sleeved with a sleeve (1), the ends of the sleeve (1) and the inner tube (2) that are away from each other are fixedly connected with flanges (4), the end of the inner tube (2) located in the sleeve (1) is embedded with a plurality of sealing rings (3), the outer wall of the inner tube (2) is fixedly sleeved with a connecting ring (5), the end of the connecting ring (5) facing the sleeve (1) is fixedly connected with a plurality of screws (6) in a circumferentially distributed manner, and the end of the sleeve (1) close to the inner tube (2) is fixedly sleeved with a sleeve shell (7) ), the outer wall of the casing (7) is fixedly connected to an annular cover plate (8) by a plurality of screws (9), a plurality of screw rods (6) penetrate the casing (7) and the annular cover plate (8), a plurality of gears (10) are rotatably connected inside the casing (7), and the gears (10) are sleeved on the corresponding screw rods (6) by means of internal threads, a driving mechanism is provided on the casing (7), a bolt head (17) is rotatably connected to the outer side of the casing (7), and the bolt head (17) is transmission-connected to each gear (10) through the driving mechanism.

2. The pressure-bearing wear-resistant pipe connector according to claim 1, characterized in that: A worm wheel (13) is rotatably mounted in the casing (7), the gears (10) are all located on the inner side of the worm wheel (13), an inner peripheral wall of the worm wheel (13) is provided with an internal tooth groove, and the gears (10) are all meshed with the internal tooth groove, a worm (16) is rotatably connected in the casing (7), the worm (16) and the worm wheel (13) are meshed with each other, and one end of the worm (16) passes through the casing (7) and is fixedly connected to the bolt head (17).

3. The pressure-bearing wear-resistant pipe connector according to claim 1, characterized in that: Positioning grooves (12) are provided on both side end faces of the gear (10); positioning rings (11) are fixedly connected to the inner wall of the sleeve (7) and the outer wall of the annular cover plate (8) at the corresponding positions of each gear (10); the positioning rings (11) are located in the corresponding positioning grooves (12), and the screw rod (6) passes through the corresponding positioning rings (11).

4. The pressure-bearing wear-resistant pipe connector according to claim 2, characterized in that: Positioning rings (14) are fixedly connected to the inner wall of the casing (7) and the outer wall of the annular cover plate (8) at the corresponding positions of the worm wheel (13); annular grooves (15) are provided at the corresponding positions of the end faces of both sides of the worm wheel (13) and the positioning ring (14); and the positioning ring (14) is located in the corresponding annular grooves (15).

5. The pressure-bearing wear-resistant pipe connector according to claim 1, characterized in that: The inner walls of the sleeve (1) and the inner tube (2) are both provided with polytetrafluoroethylene linings, and the outer wall of the sealing ring (3) fits with the inner wall of the polytetrafluoroethylene lining in the sleeve (1).

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