End locking device for pipeline hydrostatic test

Abstract

The utility model relates to a locking device, belongs to the technical field of pipeline water pressure tests, and particularly relates to a pipeline water pressure test end locking device which comprises a base plate, and a shell is arranged on one side of the base plate. A motor is started to drive a rotating shaft to rotate, a first bevel gear is driven to drive a second bevel gear to rotate, two threaded blocks on a bidirectional threaded rod are driven to move away from each other, a limiting arc-shaped block on a telescopic rod is driven to support and fix the inner wall of a pipeline, and the threaded blocks drive L-shaped blocks to move while moving; according to the device, a fixed rod on a strip-shaped hole is driven to move, and a mounting block on a long block is driven to move, so that a rubber sealing ring is driven to seal the inner wall of a pipeline, the test end of the pipeline is conveniently locked, water is prevented from overflowing during water pressure testing, and the problems that according to an existing pressure testing method, segmented pressure testing cannot be conducted on a pressure testing pipe section, and the testing efficiency is high are solved. The construction period of a hydraulic pressure test is easily prolonged, and a pressure test device and operation procedures are relatively complex.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline hydrostatic test technical field especially pipeline hydrostatic test end locking device. BACKGROUND

[0002] After pipeline construction is completed, pipeline hydrostatic test is usually needed.

[0003] Through the retrieval, the authorized announcement No. CN211576816U of Chinese patent discloses a pipeline engineering hydrostatic test device, including locking mechanism and water tank, locking mechanism includes installation box, the upper portion of installation box is equipped with a plurality of sliding holes, the inside of installation box is fixed with a plurality of resistance columns, resistance column is all sleeved with spring, the inside of installation box is fixed with two screw hole columns, two screw hole columns are connected with water outlet pipe and connecting pipe respectively, water outlet pipe is provided with pressure relief valve, the end of connecting pipe is connected with hand pressure mechanism, and hand pressure mechanism is arranged on water tank.

[0004] Based on the above retrieval and combining prior art, it is found that:

[0005] The existing pressure test method cannot segmentally test the pressure test pipe section, is easy to cause the period of pipeline hydrostatic test to lengthen, and the pressure test device and operation procedure are more complex, equipment is not fully utilized, and then the working efficiency of pressure test is reduced. UTILITY MODEL CONTENTS

[0006] In order to solve the above technical problem, the utility model provides a pipeline hydrostatic test end locking device, which is characterized by: a plurality of rubber sealing rings are installed on the installation blocks, then the device is placed in the pipeline, the motor is started to drive the rotating shaft to rotate, the bevel gear one drives the bevel gear two to rotate, the two threaded blocks on the bidirectional threaded rod move away from each other, the limiting arc blocks on the telescopic rod support and fix the inner wall of the pipeline, the threaded blocks move at the same time to drive the L-shaped blocks to move, the rack drives the pinion to rotate clockwise, the large gear on the rotating rod rotates counterclockwise, the fixed rod on the slot moves, the installation blocks on the long blocks move, and the rubber sealing rings seal the inner wall of the pipeline.

[0007] The technical solution for achieving the purpose of the utility model is: a pipeline hydrostatic test end locking device, including a chassis, the side of the chassis is provided with a shell, the side of the shell is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft through a shaft coupling, one end of the rotating shaft is keyed with a bevel gear one, and the device further comprises:

[0008] A locking mechanism is arranged on the chassis.

[0009] The locking mechanism comprises a limiting unit and a locking unit, the limiting unit comprises a bidirectional threaded rod which is rotatably connected to the inner walls on both sides of the shell, a bevel gear two is connected to the bidirectional threaded rod by a key, the bevel gear one and the bevel gear two are engaged, two threaded blocks are screwed on the bidirectional threaded rod, one side of one threaded block is fixedly connected with an L-shaped block, one side of the L-shaped block is fixedly connected with a rack, two telescopic rods are fixedly connected to the sides, away from each other, of the two threaded blocks, and one end of each of the two telescopic rods is fixedly connected with a limiting arc-shaped block.

[0010] In some embodiments, the locking unit comprises a rotating rod and a rotating column rotatably connected to one side of the base plate, a large gear is connected to the rotating rod by a key, a plurality of strip-shaped holes are formed in the large gear, a small gear is connected to the rotating column by a key, the small gear is engaged with the large gear, the small gear is engaged with the rack, a plurality of sliding grooves are formed in the base plate, an elongated block is slidably connected to each of the plurality of sliding grooves, a fixing rod is fixedly connected to one side of each of the elongated blocks, the fixing rod is located in the strip-shaped hole, and an installation block is fixedly connected to the side, away from each other, of each of the plurality of elongated blocks.

[0011] In some embodiments, a slide rail is formed in one side of the shell, and two threaded blocks are slidably connected to the slide rail.

[0012] In some embodiments, a telescopic spring is sleeved on each of the plurality of telescopic rods, and the two ends of the telescopic spring are fixedly connected to the telescopic rod and the limiting arc-shaped block, respectively.

[0013] In some embodiments, a rubber sealing ring is commonly installed on each of the plurality of installation blocks.

[0014] In some embodiments, a plurality of supporting rods are commonly fixedly connected to the sides, close to each other, of the base plate and the shell.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model discloses a rubber sealing ring is installed on a plurality of installation blocks first, then the device is put into the pipeline, the motor is started to drive the rotating shaft to rotate, drives the bevel gear one to drive the bevel gear two to rotate, drives the two threaded blocks on the bidirectional threaded rod to move away from each other, drives the limiting arc-shaped block on the telescopic rod to support and fix the inner wall of the pipeline, the threaded block moves while driving the L-shaped block to move, drives the rack to rotate clockwise to the small gear, drives the large gear on the rotating rod to rotate counterclockwise, drives the fixing rod on the strip-shaped hole to move, drives the installation block on the elongated block to move, thereby driving the rubber sealing ring to seal the inner wall of the pipeline, the utility model discloses a pipeline test end is locked, and the overflow of water when water pressure is tested is prevented.

[0017] The existing pressure test method cannot perform sectional pressure test on the pressure test pipe section, easily causes the water pressure test period to be lengthened, the pressure test device and operation process are relatively complex, equipment is not fully utilized, and thus the pressure test work efficiency is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be explained further in combination with the drawings and embodiments:

[0019] Figure 1 It is a whole three-dimensional structure schematic diagram provided by the utility model in an embodiment;

[0020] Figure 2 It is a limiting unit sectional three-dimensional structure schematic diagram provided by the utility model in an embodiment;

[0021] Figure 3 It is a locking unit structure schematic diagram provided by the utility model in an embodiment.

[0022] BRIEF DESCRIPTION OF DRAWINGS:

[0023] 1, base plate, 2, shell, 3, motor, 4, rotating shaft, 5, bevel gear one, 6, bidirectional threaded rod, 7, threaded block, 8, telescopic rod, 9, limit arc block, 10, telescopic spring, 11, bevel gear two, 12, slide rail, 13, L-shaped block, 14, rack, 15, rotating rod, 16, large gear, 17, strip hole, 18, rotating column, 19, pinion, 20, elongated block, 21, fixed rod, 22, support rod, 23, mounting block, 24, rubber sealing ring. DETAILED DESCRIPTION

[0024] The utility model will be explained further in combination with the drawings and embodiments:

[0025] The utility model provides a pipeline water pressure test end locking device by improvement, the technical scheme of the utility model is:

[0026] As Figures 1-3As shown, the pipeline water pressure test end locking device, including the chassis 1, one side of the chassis 1 is provided with the shell 2, one side of the shell 2 is fixedly connected with the motor 3, the output end of the motor 3 is fixedly connected with the rotating shaft 4 through the shaft coupling, one end of the rotating shaft 4 is keyed with the bevel gear one 5, further comprising a locking mechanism, the locking mechanism is located on the chassis 1; The locking mechanism comprises a limiting unit and a locking unit, the limiting unit comprises a double-threaded rod 6 rotatably connected to the inner walls on both sides of the shell 2, the double-threaded rod 6 is keyed with a bevel gear two 11, the bevel gear one 5 and the bevel gear two 11 are engaged, the double-threaded rod 6 is screwed with two threaded blocks 7, one side of one of the threaded blocks 7 is fixedly connected with an L-shaped block 13, one side of the L-shaped block 13 is fixedly connected with a rack 14, the two threaded blocks 7 are fixedly connected with two telescopic rods 8 on the sides away from each other, and the two telescopic rods 8 are fixedly connected with a limiting arc block 9 at one end.

[0027] As shown in the figure, Figure 3 In an embodiment, the locking unit comprises a rotating rod 15 and a rotating column 18 rotatably connected to one side of the chassis 1, the rotating rod 15 is keyed with a large gear 16, a plurality of strip holes 17 are formed in the large gear 16, the rotating column 18 is keyed with a small gear 19, the small gear 19 is engaged with the large gear 16, the small gear 19 is engaged with the rack 14, a plurality of sliding grooves are formed in the chassis 1, a plurality of elongated blocks 20 are slidingly connected in the sliding grooves, the elongated blocks 20 are fixedly connected with fixing rods 21 on one side, the fixing rods 21 are located in the strip holes 17, and the plurality of elongated blocks 20 are fixedly connected with mounting blocks 23 on the sides away from each other; Through the setting of the locking unit, it is convenient to lock the inner wall of the pipeline to prevent water overflow.

[0028] As shown in the figure, Figure 2 In an embodiment, a slide rail 12 is formed on one side of the shell 2, and two threaded blocks 7 are slidingly connected on the slide rail 12; Through the setting of the slide rail 12, the stability of the threaded block 7 during movement is improved.

[0029] As shown in the figure, Figure 2 In an embodiment, a plurality of telescopic rods 8 are sleeved with telescopic springs 10, and the two ends of the telescopic spring 10 are fixedly connected to the telescopic rod 8 and the limiting arc block 9 respectively; Through the setting of the telescopic spring 10, it is convenient for the reciprocating motion of the limiting arc block 9.

[0030] As shown in the figure, Figure 1 In an embodiment, a plurality of mounting blocks 23 are commonly mounted with rubber sealing rings 24; Through the setting of the rubber sealing ring 24, it is convenient to seal the pipeline.

[0031] As shown in the figure, Figure 3As shown, in an embodiment, the chassis 1 and the shell 2 are fixedly connected with a plurality of support rods 22 on the side close to each other; through the arrangement of the support rods 22, the chassis 1 and the shell 2 are conveniently connected.

[0032] The specific working method is: in use, first, install the rubber sealing ring 24 on the plurality of mounting blocks 23, then put the device into the pipeline, start the motor 3 to drive the rotating shaft 4 to rotate, drive the bevel gear one 5 to drive the bevel gear two 11 to rotate, drive the two threaded blocks 7 on the bidirectional threaded rod 6 to move away from each other, drive the limiting arc blocks 9 on the telescopic rods 8 to support and fix the inner wall of the pipeline, the threaded block 7 moves at the same time to drive the L-shaped block 13 to move, drive the rack 14 to rotate the pinion 19 clockwise, drive the large gear 16 on the rotating rod 15 to rotate counterclockwise, drive the fixed rod 21 on the strip-shaped hole 17 to move, drive the mounting block 23 on the elongated block 20 to move, so as to drive the rubber sealing ring 24 to seal the inner wall of the pipeline, conveniently lock the test end of the pipeline, and prevent water overflow during water pressure test.

[0033] The technical means disclosed by the utility model scheme is not limited to the technical means disclosed by the above technical means, and also includes technical solutions composed of equivalent replacement of the above technical features. The unfinished matters of the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A pipeline water pressure test end locking device, comprising a chassis (1), wherein a housing (2) is provided on one side of the chassis (1), a motor (3) is fixedly connected to one side of the housing (2), and a rotating shaft (4) is fixedly connected to the output end of the motor (3) via a coupling, and a bevel gear (5) is keyed to one end of the rotating shaft (4), characterized in that: Also includes; A locking mechanism is located on the chassis (1); The locking mechanism includes a limiting unit and a locking unit. The limiting unit includes a bidirectional threaded rod (6) that is rotatably connected to the inner walls of both sides of the housing (2). A bevel gear (11) is keyed to the bidirectional threaded rod (6). The bevel gear (5) and the bevel gear (11) mesh with each other. Two threaded blocks (7) are screwed onto the bidirectional threaded rod (6). An L-shaped block (13) is fixedly connected to one side of one of the threaded blocks (7). A rack (14) is fixedly connected to one side of the L-shaped block (13). Two telescopic rods (8) are fixedly connected to the sides of the two threaded blocks (7) that are far apart from each other. A limiting arc block (9) is fixedly connected to one end of each pair of telescopic rods (8).

2. The pipeline hydrostatic test end locking device according to claim 1, characterized in that: The locking unit includes a rotating rod (15) and a rotating column (18) rotatably connected to one side of the chassis (1). A large gear (16) is keyed to the rotating rod (15). The large gear (16) has multiple slotted holes (17). A small gear (19) is keyed to the rotating column (18). The small gear (19) meshes with the large gear (16) and meshes with the rack (14). The chassis (1) has multiple sliding grooves. Long blocks (20) are slidably connected to each of the multiple sliding grooves. A fixing rod (21) is fixedly connected to one side of each long block (20). The fixing rod (21) is located in the slotted hole (17). Mounting blocks (23) are fixedly connected to the sides of the multiple long blocks (20) that are far apart from each other.

3. The pipeline hydrostatic test end locking device according to claim 1, characterized in that: A slide rail (12) is provided on one side of the housing (2), and two threaded blocks (7) are slidably connected on the slide rail (12).

4. The pipeline hydrostatic test end locking device according to claim 1, characterized in that: Each of the telescopic rods (8) is fitted with a telescopic spring (10), and the two ends of the telescopic spring (10) are fixedly connected to the telescopic rod (8) and the limiting arc block (9), respectively.

5. The pipeline hydrostatic test end locking device according to claim 2, characterized in that: A rubber sealing ring (24) is installed on multiple mounting blocks (23).

6. The pipeline hydrostatic test end locking device according to claim 1, characterized in that: The chassis (1) and the shell (2) are fixedly connected to each other on one side. Multiple support rods (22) are fixedly connected to each other.

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