CN111928027B

CN111928027B - Hoop

Info

Publication number: CN111928027B
Application number: CN202010821932.8A
Authority: CN
Inventors: 马国彬
Original assignee: Henan Zhongguang Science And Technology Intelligent Manufacturing Co ltd
Current assignee: Henan Zhongguang Science And Technology Intelligent Manufacturing Co ltd
Priority date: 2020-08-15
Filing date: 2020-08-15
Publication date: 2021-08-31
Anticipated expiration: 2040-08-15
Also published as: CN111928027A

Abstract

The invention relates to a hoop, which effectively solves the problems that the inner diameter of the hoop can not be adjusted and manual adjustment wastes time and labor in the prior art; the technical scheme for solving the problem is that the device comprises a plurality of arc-shaped long sections which are mutually contacted and can be enclosed to form a circle, and two adjacent long sections are connected through a connecting section; the hoop further comprises a left end section and a right end section, the right end section is rotatably connected with a fastening screw, and one end of the fastening screw penetrates through the left end section and is in threaded fit with the left end section; the hoop further comprises a mounting frame detachably connected to the long section, a sliding frame is connected to the mounting frame in a sliding mode, a wedge block is fixedly connected to one end, facing the long section, of the sliding frame, guide wedges are fixedly connected to the upper end and the lower end of the sliding frame, a sliding rail is fixedly connected to the sliding frame, a fixed shaft is fixedly connected to the inside of the sliding rail, a sliding shaft is connected to the inside of the sliding frame in a sliding mode, and a spreading plate is fixedly connected to the sliding shaft and the fixed shaft; the invention has simple structure, convenient operation, effective realization of the quick adjustment of the inner diameter of the hoop and strong practicability.

Description

Hoop

Technical Field

The invention relates to the technical field of fastening tools, in particular to a hoop.

Background

The daily hardware comprises a lot of contents, and pipelines and pipe fittings for drainage engineering are one of the fields of the daily hardware. In the past, most of pipelines and pipe fittings are made of metal materials, and with the birth and development of plastic materials, metal pipes, especially pipes used for drainage systems, are basically replaced at present. The pipe connection is an indispensable important component in the conveying pipe. At present, the connecting piece for connecting the straight pipe and the straight pipe in the pipeline and connecting the straight pipe and the elbow mainly adopts a flange, but the flange connection has the following defects: the flange joint wholeness is poor, connects to waste time and energy, connects inconveniently, the trouble problem of dismouting maintenance.

Therefore, the anchor ear is used, the types of the anchor ear are various, the common anchor ear is generally composed of an anchor ear body, a bolt and a nut, and the tightening end is squeezed and tightened through the bolt and the nut to achieve the fastening effect between the two pipelines.

The anchor ear in the prior art has the following disadvantages:

1. the inner diameter of the existing hoop cannot be adjusted, and only limited adjustment can be carried out through the extrusion of a bolt and a nut at a tightening end, so that the existing hoop cannot be adapted to special pipes with non-standard pipe diameters;

2. some staple bolts that possess regulating power need complicated manual adjustment process, waste time and energy.

Therefore, the present invention provides a new hoop to solve this problem.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the hoop, which effectively solves the problems that the inner diameter of the hoop cannot be adjusted and manual adjustment wastes time and labor in the prior art.

The invention comprises a plurality of arc-shaped long sections which are mutually contacted and can be enclosed to form a circle, and two adjacent long sections are connected through a connecting section;

the hoop further comprises a left end section and a right end section, a fastening screw is rotatably connected to the right end section, and one end of the fastening screw penetrates through the left end section and is in threaded fit with the left end section;

the hoop further comprises a mounting frame detachably connected to the long section, a sliding frame is connected to the mounting frame in a sliding mode, a wedge block is fixedly connected to one end, facing the long section, of the sliding frame, guide wedges are fixedly connected to the upper end and the lower end of the sliding frame, a sliding rail is fixedly connected to the sliding frame, a fixed shaft is fixedly connected to the inside of the sliding rail, a sliding shaft is connected to the inside of the sliding rail in a sliding mode, and an expanding plate is fixedly connected to the sliding shaft and the fixed shaft;

the long section comprises a normal section and a long section, two ends of the normal section and the long section are fixedly connected with a support column, the upper end and the lower end of the support column are provided with connecting holes, two ends of the connecting section are fixedly connected with connecting pins, two connecting pins on the same connecting section are respectively arranged in the connecting holes of two adjacent different normal sections, and the connecting pins and the connecting holes are in interference fit;

a support notch is formed in the middle of a support column of the growth section, and the upper end and the lower end of the support notch are both provided with growth holes;

the hoop further comprises a supplement section, wherein two ends of the supplement section are fixedly connected with the support columns and the support columns, connecting holes are formed in the support columns, one of the two supports is fixedly connected with a supplement rod, the upper end and the lower end of the supplement rod are slidably connected with supplement pins, and the two supplement pins can be arranged in the two increasing holes respectively.

Preferably, the sliding frame is connected with a supplementary frame in a sliding mode, and the supplementary section is placed on the supplementary frame.

Preferably, a distraction arc-shaped cylinder is fixedly connected to the slide rail, and the other end of the distraction arc-shaped cylinder is fixedly connected with the slide shaft;

the fixed frame is fixedly connected with a sliding cylinder, and the other end of the sliding cylinder is fixedly connected with the sliding frame;

the fixing frame is fixedly connected with a supplementary air cylinder, and the other end of the supplementary air cylinder is fixedly connected with the supplementary frame;

the fixed frame is fixedly connected with a central control module, and the central control module is electrically connected with the opening arc-shaped air cylinder, the sliding air cylinder and the supplementary air cylinder.

Preferably, the supplementary pin and the supplementary rod are connected through a spring, and one side of each of the two supplementary pins is fixedly connected with a reset sheet.

Preferably, a threaded sleeve is connected in the left end section in a rotating mode, and the fastening screw penetrates through the threaded sleeve and is matched with the thread of the threaded sleeve;

the left end section is internally and rotatably connected with a guide ring, the right end section is detachably connected with a guide shaft, and the guide shaft penetrates through the guide ring and slides in the guide ring.

Preferably, a wire wheel is rotatably connected in the right end section, a rope is wound on the wire wheel, the other end of the rope is fixedly connected to the left end section, the wire wheel is coaxially and fixedly connected with a driving gear rotatably connected in the right end section, a driven gear rotatably connected in the right end section is meshed beside the driving gear, the driven gear is coaxially and fixedly connected with a ratchet wheel rotatably connected in the right end section, and a pawl rotatably connected in the right end section is matched beside the ratchet wheel;

the ratchet wheel is coaxially and fixedly connected with a ratchet wheel handle which is rotatably connected with the outer wall of the right end section.

Preferably, the right end section is connected with a pawl base in a sliding mode, a pawl screw rod is connected in the right end section in a rotating mode, and the other end of the pawl screw rod is connected with the pawl base in a rotating mode.

Preferably, the length of the guide shaft is greater than that of the fastening screw.

Preferably, a plurality of compression rollers are rotatably connected in the long section, the diameter of each compression roller is larger than the width of the long section, and friction transverse grains are arranged on the compression rollers.

The invention makes improvement aiming at the problems that the inner diameter of the hoop can not be adjusted and manual adjustment wastes time and labor in the prior art, and adopts the long section and the connecting section which are detachably connected with each other, thereby realizing the manual adjustment of the inner diameter of the hoop; a supplement section and a growth section are additionally arranged, and an elastic clamping structure is arranged between the supplement section and the growth section, so that the supplement section is quickly installed, and the inner diameter of the hoop is quickly increased; the structure of a mounting frame, a chute, a wedge block and the like is added, the supplement section is placed in the structure, and the quick disassembly of the connecting section, the installation of the supplement section and the resetting of the connecting section are realized through the structure, so that the expansion of the inner diameter of the hoop is realized quickly and conveniently; the central control module controls the work of each structure, so that the length of the hoop can be adjusted by workers conveniently; the invention has simple structure and convenient operation, and can effectively realize the quick adjustment of the inner diameter of the hoop, thereby using pipelines with various nonstandard pipe diameters and having strong practicability.

Drawings

Fig. 1 is a first perspective view of the present invention.

FIG. 2 is a schematic front view of the present invention.

Fig. 3 is a perspective view of the second embodiment of the present invention.

Fig. 4 is a perspective view of the first mounting bracket and its related structure according to the present invention.

Fig. 5 is a perspective view of the mounting bracket and the related structure thereof according to the second embodiment of the invention.

Fig. 6 is a partial perspective view of the mounting bracket and its related structure of the present invention.

Fig. 7 is a perspective view of a supplement node and a related structure thereof according to the first embodiment of the present invention.

FIG. 8 is a schematic sectional view of a supplementary knot and its related structure.

FIG. 9 is a perspective view of the left and right end sections and their related structures of the present invention.

FIG. 10 is a perspective view of the left and right end sections and their related structures of the present invention.

FIG. 11 is a schematic perspective view of the right end section and its internal structure in cross section of the present invention.

Fig. 12 is a perspective view of a joint according to the present invention.

Detailed Description

The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 12. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate orientations or positional relationships, are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

The first embodiment of the invention is a hoop, which is characterized by comprising a plurality of arc-shaped long sections, wherein the plurality of long sections are mutually contacted and can be enclosed to form a circle, two adjacent long sections are connected through a connecting section 2, referring to fig. 1 and 12, the plurality of long sections are mutually enclosed to form a circle and are tightly hooped on the outer wall of a pipeline, the connecting section 2 is arranged between the two long sections, and two ends of the connecting section 2 are respectively and fixedly connected to one end of the two adjacent long sections, so that the long sections are fixed;

the hoop further comprises a left end section 3 and a right end section 4, the left end section 3 and the right end section 4 are respectively connected with adjacent long sections through a connecting section 2, a gap is reserved between the left end section 3 and the right end section 4, the device is enabled to bypass a pipeline and is hooped on the outer wall of the pipeline through the gap, a fastening screw 5 is rotatably connected onto the right end section 4, one end of the fastening screw 5 penetrates through the left end section 3 and is in threaded fit with the left end section 3, the left end section 3 and the right end section 4 can be driven to mutually approach and separate through rotation of the fastening screw 5, accordingly, the fastening degree of the device outside the pipeline is adjusted, and the inner diameter of the device is adjusted to a certain degree;

the hoop further comprises a mounting frame 6 detachably connected to the long sections, and referring to fig. 1 and fig. 4, the mounting frame 6 is fixedly connected with a plurality of guide claws, the guide claws are respectively buckled on two adjacent long sections, so that the mounting frame 6 is fixed on the device, and meanwhile, the limiting and guiding are provided for the movement of the subsequent long sections, the mounting frame 6 is connected with a sliding frame 7 in a sliding manner, the sliding frame 7 can be close to or far away from the circle center direction of the hoop, the sliding frame 7 is fixedly connected with a wedge block 8 towards one end of the long sections, referring to fig. 5, the wedge block 8 can synchronously move and jack up the connecting section 2 when the sliding frame 7 moves towards the circle center direction of the device, so that a new external long section sliding frame or other sections can be added between the two adjacent long sections, the upper end and the lower end of the sliding frame 7 are fixedly connected with guide wedges 9, and the guide wedges 9 are positioned right above the wedge block 8, the wedge-shaped block is used for limiting the connecting joint 2 when the wedge-shaped block 8 jacks up the connecting joint 2, so that the connecting joint 2 moves upwards, when the sliding frame 7 moves away from the circle center of the device, the wedge-shaped block 8 is gradually separated from the connecting joint 2 along with the sliding frame 7, meanwhile, the guide wedge 9 gradually presses the connecting joint 2 downwards to enable the connecting joint 2 to return to the original position, a sliding rail 10 is fixedly connected onto the sliding frame 7, a fixed shaft 11 is fixedly connected into the sliding rail 10, a sliding shaft 12 is slidably connected into the sliding rail 10, the sliding rail 10 can be close to or far away from the circle center of the device at the same time, an opening plate 13 is fixedly connected onto each of the sliding shaft 12 and the fixed shaft 11, and the opening plate 13 is used for opening two adjacent long sections;

in the embodiment, when the device is used specifically, the fastening screw 5 is firstly screwed out of the left end section 3, the device is wound outside the pipeline, then the fastening screw 5 penetrates through the left end section 3, if the distance between the left end section 3 and the right end section 4 is too large, the fastening screw 5 needs to bear large force to ensure holding when the device is fastened, the fastening screw 5 is easily damaged to cause the device to fail, so that the long sections of the device need to be added, at the moment, a plurality of guide claws need to be respectively buckled on two adjacent long sections, then the fixing frame is pushed to move towards the circle center direction of the pipeline, so that the connecting section 2 is jacked up through the wedge block 8, then the sliding frame 7 is pushed to enable the front ends of the two supporting plates 13 to be inserted between the two long sections, then the sliding shaft 12 slides along the two long sections in the process, then the two long sections slide along the guide claws slide frame are placed in the gap and the sliding frame 7 is controlled to withdraw, in this process, the wedge block 8 is gradually separated from the connection section 2 while the guide wedge 9 is in contact with the connection section 2 and presses the connection section 2 back to its original position, and then the connection section 2 is installed at another connection position.

Embodiment two, on the basis of embodiment one, the above-mentioned process still needs the manual work to install new connecting node 2, the process is comparatively tedious, this embodiment further optimizes to the above-mentioned process, specifically, the long section include normal section 14 and increase section 15, refer to fig. 1, specifically, a present device includes a plurality of normal sections 14 and an increase section 15, the newly added section is inserted from the increase section 15, both ends of the normal section 14 and the increase section 15 are all fixedly connected with the support column 16, both upper and lower ends of the support column 16 are all opened with connecting hole 17, both ends of the connecting section 2 are fixedly connected with connecting pin 18, two connecting pins 18 on the same connecting section 2 are respectively placed in the connecting holes 17 of two adjacent different normal sections 14, thereby two adjacent normal sections 14 or normal sections 14 and increase section 15 through connecting section 2 are connected, the connecting pin 18 and connecting hole 17 are interference fit, therefore, the connecting joint 2 is ensured to be fastened and fixed, specifically, the interference fit is that the aperture at the inlet at the upper end of the connecting port is smaller, the aperture at the lower end is larger, the diameter at the lower end of the connecting pin 18 is larger, the diameter at the upper end is smaller, the connecting pin 18 needs to be pressed down or drive a hammer to hammer into forcibly when entering the connecting hole 17, and attention needs to be paid to the fact that the arrangement is mainly used for preventing the device from falling apart when the device is not used, and because each normal part and the lengthening joint 15 are in a tensioned state when the device is used, the connecting hole 17 and the side wall of the connecting pin 18 have larger friction force and are not easy to fall off;

referring to fig. 3, a support notch 19 is formed in the middle of a support column 16 of the growth joint 15, the support notch 19 breaks the support column 16 of the growth joint 15, a newly inserted joint is inserted from the support notch, and the upper end and the lower end of the support notch 19 are both provided with an expansion hole 20;

referring to fig. 7, the hoop further includes a supplement section 21, two ends of the supplement section 21 are fixedly connected to the support column 16, the support column 16 is provided with a connection hole 17, the supplement section 21 is shorter and is half of the length of the normal section 14, the arrangement is convenient for a user to adjust the inner diameter of the device more flexibly, one of the two supports is fixedly connected to a supplement rod 22, the upper end and the lower end of the supplement rod 22 are slidably connected to supplement pins 23, the two supplement pins 23 can be respectively arranged in the two elongated holes 20, one end of the supplement pin 23 facing the outside is provided with a round angle, the supplement pin 23 can conveniently enter the elongated hole 20, the supplement pin 23 and the supplement rod 22 are connected through a spring 28, specifically, referring to fig. 8, the supplement rod 22 is provided with two supplement holes, the two supplement pins 23 are respectively slidably connected in the two supplement holes, in the initial position, the distance between the upper end and the lower end of each of the two complementary pins 23 is greater than the height of the support notch 19, one side of each of the two complementary pins 23 is fixedly connected with a reset sheet 29, the reset sheets 29 are arranged to enable the complementary joint 21 to be detached, and when the complementary joint 21 needs to be detached, only the two reset sheets 29 are pressed and the complementary pins 23 are enabled to exit from the corresponding elongated holes 20;

when the embodiment is used specifically, after the extension joint 15 is expanded, the supplement joint 21 is pushed out of a gap between the extension joint 15 and the normal joint 14, the supplement rod 22 enters the support notch 19, at this time, the two supplement pins 23 are firstly pressed into the supplement rod 22 by the support column 16, and then under the action of the spring 28, the supplement pins 23 enter the corresponding extension holes 20, so that one end of the supplement joint 21 is connected with the extension joint 15, and the other end of the supplement joint is contacted with the adjacent normal joint 14 and is fixed by the connecting joint 2;

when the supplement node 21 needs to be disassembled, only the two resetting sheets 29 are pressed and the supplement pins 23 are made to exit the corresponding growth holes 20;

it should be noted that, in most cases in actual use, the fastening of the present device can be achieved by adding one supplementary node 21, so that in this embodiment, only one supplementary node 21 is provided, and if a plurality of supplementary nodes 21 are required, the support notch 19 and the elongated hole 20 can be opened on the support column 16 without the supplementary rod 22 of the supplementary node 21.

In the third embodiment, on the basis of the second embodiment, the sliding frame 7 is slidably connected with a supplement frame 24, the supplement frame 24 can move along the direction of the circle center, the supplement section 21 is placed on the supplement frame 24, and the supplement frame 24 is arranged to drive the supplement section 21 to enter and enable the supplement rod 22 to enter the support notch 19 after the extension section 15 and the normal section 14 are pushed away by the opening plate 13;

the slide rail 10 is provided with a supplementary slide groove, the supplementary frame 24 slides in the supplementary slide groove, and in an initial state, the supplementary frame 24 is lapped on the side wall of the supplementary slide rail 10 and is arranged in the supplementary slide groove, so that the movement of the slide shaft 12 is not influenced.

In the fourth embodiment, on the basis of the third embodiment, the slide rail 10 is fixedly connected with a spreading arc-shaped cylinder 25, the other end of the spreading arc-shaped cylinder 25 is fixedly connected with the slide shaft 12, and the spreading arc-shaped cylinder 25 stretches and retracts to drive the slide shaft 12 to move along the slide rail 10, so that the spreading plate 13, the growth section 15 and the support column 16 are driven to contact with each other, and the growth section 15 is spread;

the fixed frame is fixedly connected with a sliding cylinder 26, the other end of the sliding cylinder 26 is fixedly connected with the sliding frame 7, and the sliding cylinder 26 can stretch and retract to drive the sliding frame 7 to be close to or far away from the circle center of the device, so that the wedge block 8, the guide wedge 9, the supplement frame 24 and the sliding rail 10 are driven to synchronously move;

the fixed frame is fixedly connected with a supplementary air cylinder 27, the other end of the supplementary air cylinder 27 is fixedly connected with the supplementary frame 24, and the supplementary air cylinder 27 can stretch and retract to drive the supplementary frame 24 to move along the circle center direction of the device, so that the supplementary joint 21 is driven to enter;

the fixing frame on fixedly connected with well accuse module, well accuse module and external power supply electricity connect, well accuse module uses this to supply power for each electronic components, well accuse module with prop open arc cylinder 25, sliding cylinder 26 and make up pneumatic cylinder 27 all electricity and connect, be provided with three shift knob on the mounting bracket 6 and control respectively and prop open arc cylinder 25, sliding cylinder 26 and make up pneumatic cylinder 27, press shift knob, the cylinder that corresponds is bled and stops work after its motion reaches the end, press shift knob again and make its bounce, then the cylinder that corresponds is aerifyd and stops after its motion reaches the end.

Fifth embodiment, on the basis of the first embodiment, the threaded sleeve 30 is rotatably connected in the left end section 3, and the fastening screw 5 penetrates through the threaded sleeve 30 and is in threaded fit with the threaded sleeve, referring to fig. 9, when the device is fastened outside a pipeline, the left end section 3 and the right end section 4 are often not parallel to each other and aligned, so the threaded sleeve 30 which is rotatably connected is arranged, and the fastening screw 5 is ensured to be screwed to drive the left end section 3 and the right end section 4 to approach or separate from each other;

the left end festival 3 in still rotate and be connected with guide ring 31, right-hand member festival 4 on can dismantle and be connected with guiding axle 32, guiding axle 32 pass guide ring 31 and slide in guide ring 31, the direction of motion of the left end festival 3 of mainly used restriction is set up to guiding axle 32 and guide ring 31, guarantees simultaneously that this device also can accomplish earlier when the cover is outside thick pipeline and encloses.

Sixth embodiment, on the basis of fifth embodiment, if the outer diameter of the pipeline is larger than the inner diameter of the device, and the fastening screw 5 cannot enter the threaded sleeve 30, the device needs to be fastened in advance, and then the supplementary joint 21 is inserted, so this embodiment provides a pre-fastening structure, specifically, the right end joint 4 is rotatably connected with the pulley 33, the pulley 33 is wound with the rope, and the other end of the rope is fixedly connected with the left end joint 3, the pulley 33 rotates to pull the left end joint 3 to approach the right end joint 4 along the guide shaft 32, the pulley 33 is coaxially and fixedly connected with the driving gear 34 rotatably connected in the right end joint 4, the driven gear 35 rotatably connected in the right end joint 4 is engaged with the driven gear 35 beside the driving gear 34, the driven gear 35 is coaxially and fixedly connected with the ratchet 36 rotatably connected in the right end joint 4, and the ratchet 36 rotates to drive the driven gear 35, the driving gear 34 drives the wire wheel 33 to synchronously rotate, a pawl 37 which is rotatably connected in the right end section 4 is matched beside the ratchet wheel 36, and the arrangement of the pawl 37 can effectively prevent the wire wheel 33 from reversely rotating;

the ratchet wheel 36 is coaxially and fixedly connected with a ratchet wheel handle 38 which is rotatably connected with the outer wall of the right end section 4, the ratchet wheel handle 38 is rotated to drive the ratchet wheel 36 to rotate, and the driven gear 35 and the driving gear 34 drive the wire wheel 33 to rotate.

Seventh embodiment, on the basis of sixth embodiment, the rotation of the pulley 33 in sixth embodiment cannot be reversed under the restriction of the ratchet 36 and the pawl 37, so that the device is not easy to detach during detachment, and this embodiment provides a specific structure, specifically, the right end section 4 is slidably connected with the pawl base 39, the right end section 4 is rotatably connected with the pawl screw 40, the other end of the pawl screw 40 is rotatably connected with the pawl base 39, referring to fig. 9 and 11, the pawl base 39 can be driven to slide by rotating the pawl screw 40, when the pawl base 39 slides out, the pawl 37 is disengaged from the ratchet 36, and at this time, the forward and reverse rotation of the pulley 33 is no longer restricted;

this embodiment is when specifically using, when this device dismantles, only needs to rotate pawl screw 40 and drives pawl base 39 and slide to make pawl 37 and ratchet 36 break away from the contact, later can make left end festival 3 and right end festival 4 keep away from each other, later pull down the stiff end of rope on left end festival 3 and can be convenient for use next time.

In the eighth embodiment, on the basis of the first embodiment, the length of the guide shaft 32 is greater than that of the fastening screw 5, so that the guide effect of the guide shaft 32 is ensured by matching the pulley 33 and the rope, and if the length of the guide shaft 32 is the same as that of the fastening screw 5, the guide effect of the guide shaft 32 is redundant.

In a ninth embodiment, on the basis of any one of the first to eighth embodiments, a plurality of pressure rollers 41 are rotatably connected in the long section, the diameter of each pressure roller 41 is greater than the width of the long section, the arrangement is such that when the device is used, each pressure roller 41 is substantially in contact with a pipeline instead of the long section, a gap exists between the long section and the pipeline, so that the long section can be clamped by the guide claw, the pressure rollers 41 are provided with friction cross grains, and the arrangement of the friction cross grains 42 enables the pressure rollers 41 to roll along the pipeline, so that a new supplementary section 21 can be conveniently inserted, and the overall slippage of the device is not easy to occur.

When the device is used specifically, the fastening screw 5 is firstly screwed out of the left end section 3, the device is surrounded outside a pipeline, the guide shaft 32 penetrates through the guide ring 31, the pawl 37 is rotated to enable the left end section 3 and the right end section 4 to be close to each other, so that the device is hooped outside the pipeline, and if the fastening screw 5 can enter the threaded sleeve 30 in the process, the fastening screw 5 enters the threaded sleeve 30 and enables the left end section 3 and the right end section 4 to be close to each other through the fastening screw 5;

when the distance between the left end section 3 and the right end section 4 is far, the supplement section 21 needs to be inserted, at this time, a plurality of guide claws need to be respectively buckled on two adjacent long sections, then the sliding frame 7 is controlled to move towards the circle center direction of the pipeline through the sliding cylinder 26, so that the connecting section 2 is jacked up through the wedge block 8, meanwhile, the front ends of the two opening plates 13 are inserted between the two long sections, then the sliding shaft 12 is driven to slide through the opening arc cylinder 25 so as to separate the two long sections, in the process, the two long sections slide along the guide claws, then the supplement frame 24 drives the supplement section 21 to move through the supplement cylinder 27, the supplement rod 22 enters the support notch 19, at this time, the two supplement pins 23 are firstly pressed into the supplement rod 22 by the support column 16, then under the action of the spring 28, the supplement pins 23 enter the corresponding growth holes 20, so that one end of the supplement section 21 is connected with the growth section 15, the other end is contacted with the adjacent normal joint 14;

then, the arc-shaped air cylinder 25 is controlled to be opened to reset, the supplementary air cylinder 27 is controlled to reset, the sliding air cylinder 26 is controlled to reset, and the supplementary knot 21 is inserted to complete the resetting;

then, the fastening screw 5 is continuously rotated to fasten the device outside the pipeline;

when it is necessary to disassemble the supplementary knot 21, it is only necessary to press the two return plates 29 and make the supplementary pins 23 exit the corresponding elongated holes 20.

Claims

1. The hoop is characterized by comprising a plurality of arc-shaped long sections which are mutually contacted and can be enclosed to form a circle, and two adjacent long sections are connected through a connecting section (2);

the hoop further comprises a left end section (3) and a right end section (4), a fastening screw rod (5) is rotatably connected to the right end section (4), and one end of the fastening screw rod (5) penetrates through the left end section (3) and is in threaded fit with the left end section (3);

the hoop further comprises a mounting frame (6) detachably connected to the long section, a sliding frame (7) is connected to the mounting frame (6) in a sliding mode, a wedge block (8) is fixedly connected to one end, facing the long section, of the sliding frame (7), guide wedges (9) are fixedly connected to the upper end and the lower end of the sliding frame (7), a sliding rail (10) is fixedly connected to the sliding frame (7), a fixed shaft (11) is fixedly connected to the inside of the sliding rail (10), a sliding shaft (12) is connected to the inside of the sliding frame in a sliding mode, and a spreading plate (13) is fixedly connected to the sliding shaft (12) and the fixed shaft (11);

the long sections comprise normal sections (14) and lengthened sections (15), supporting columns (16) are fixedly connected to two ends of each of the normal sections (14) and the lengthened sections (15), connecting holes (17) are formed in the upper ends and the lower ends of the supporting columns (16), connecting pins (18) are fixedly connected to two ends of each connecting section (2), the two connecting pins (18) on the same connecting section (2) are respectively arranged in the connecting holes (17) of two adjacent different normal sections (14), and the connecting pins (18) and the connecting holes (17) are in interference fit;

a support notch (19) is formed in the middle of a support column (16) of the extension section (15), and extension holes (20) are formed in the upper end and the lower end of the support notch (19);

the hoop further comprises a supplement section (21), two ends of the supplement section (21) are fixedly connected with the support column (16) and the support column (16) respectively, a connecting hole (17) is formed in the support column (16), one of the two supports is fixedly connected with a supplement rod (22), the upper end and the lower end of the supplement rod (22) are connected with supplement pins (23) in a sliding mode, and the supplement pins (23) can be arranged in the two increasing holes (20) respectively.

2. The hoop according to claim 1, wherein a supplementary frame (24) is slidably connected to the sliding frame (7), and the supplementary joint (21) is placed on the supplementary frame (24).

3. The hoop according to claim 2, wherein a stretching arc cylinder (25) is fixedly connected to the slide rail (10), and the other end of the stretching arc cylinder (25) is fixedly connected to the slide shaft (12);

a sliding cylinder (26) is fixedly connected to the fixed frame, and the other end of the sliding cylinder (26) is fixedly connected with the sliding frame (7);

the fixing frame is fixedly connected with a supplementary air cylinder (27), and the other end of the supplementary air cylinder (27) is fixedly connected with the supplementary frame (24);

the fixed frame is fixedly connected with a central control module, and the central control module is electrically connected with the opening arc-shaped cylinder (25), the sliding cylinder (26) and the supplementary cylinder (27).

4. The hoop according to claim 1, wherein the supplementary pins (23) are connected with the supplementary rods (22) through springs (28), and return plates (29) are fixedly connected to one sides of the two supplementary pins (23).

5. The hoop according to claim 1, wherein a threaded sleeve (30) is rotatably connected to the left end section (3), and the fastening screw (5) penetrates through the threaded sleeve (30) and is in threaded fit with the threaded sleeve;

the left end section (3) in still rotate and be connected with guide ring (31), right end section (4) on can dismantle and be connected with guiding axle (32), guiding axle (32) pass guide ring (31) and slide in guide ring (31).

6. The hoop according to claim 5, wherein the right end section (4) is rotatably connected with a wire wheel (33), a rope is wound on the wire wheel (33), the other end of the rope is fixedly connected to the left end section (3), the wire wheel (33) is coaxially and fixedly connected with a driving gear (34) rotatably connected in the right end section (4), a driven gear (35) rotatably connected in the right end section (4) is meshed beside the driving gear (34), a ratchet wheel (36) rotatably connected in the right end section (4) is coaxially and fixedly connected with the driven gear (35), and a pawl (37) rotatably connected in the right end section (4) is matched beside the ratchet wheel (36);

the ratchet wheel (36) is coaxially and fixedly connected with a ratchet wheel handle (38) which is rotatably connected with the outer wall of the right end section (4).

7. The hoop according to claim 6, wherein a pawl base (39) is slidably connected to the right end section (4), a pawl screw (40) is rotatably connected to the right end section (4), and the other end of the pawl screw (40) is rotatably connected to the pawl base (39).

8. A hoop according to claim 6 or 7, wherein the length of the guide shaft (32) is greater than the length of the fastening screw (5).

9. The hoop according to any one of claims 1 to 7, wherein a plurality of pressure rollers (41) are rotatably connected in the long sections, the diameter of each pressure roller (41) is larger than the width of each long section, and friction cross grains are arranged on the pressure rollers (41).