CN219235126U - Portable tool - Google Patents

Abstract

The embodiment of the utility model provides a portable tool which is used for compressing or fixing a corrugated pipe, wherein the corrugated pipe comprises a main pipe body and two connecting pipes respectively arranged at two ends of the main pipe body, and the outer diameters of the two connecting pipes are smaller than the outer diameter of the main pipe body. The portable tool comprises a first clamping ring, a second clamping ring, a pull rod and a connecting piece. The pull rod is arranged between the first clamping ring and the second clamping ring, is connected with the first clamping ring or the second clamping ring through the connecting piece, and is adjustable in position on the pull rod. The first clamping ring and the second clamping ring are respectively provided with an opening which can be opened. The inner diameters of the first clamping ring and the second clamping ring are larger than the outer diameter of the connecting pipe and smaller than the outer diameter of the main pipe body; the diameter of an inner cavity surrounded by the pull rods is larger than the outer diameter of the main pipe body. The portable tool provided by the embodiment of the utility model has multiple functions of compression and fixation, is convenient to move and has portability.

Description

Portable tool

Technical Field

The utility model relates to the technical field of pipeline installation and debugging, in particular to a portable tool.

Background

When the oxygen delivery pipe and the fuel delivery pipe of the rocket are installed, the corrugated pipe is required to be arranged in the middle of the pipeline, so that the pipeline is flexibly connected, the installation is convenient, and the inconvenience caused by installation errors is reduced. When the corrugated pipe is installed, the corrugated pipe needs to be compressed to enable the corrugated pipe to be normally installed and used. When the air tightness test is performed on the oxygen delivery pipe and the fuel delivery pipe, the corrugated pipe expands along with the internal air pressure, and at this time, the corrugated pipe needs to be fixed to protect the corrugated pipe.

For compressing or fixing the corrugated pipe when the corrugated pipe is conveniently installed, a special tool can be designed, and the compression or fixing of the corrugated pipe is realized through the tool, so that the corrugated pipe is more convenient to install or debug.

In the process of implementing the present utility model, the inventor finds that at least the following problems exist in the prior art: the existing tool can only be used for compressing the corrugated pipe, cannot play a role in fixing the corrugated pipe during expansion, and is single in function. Meanwhile, the existing fixture is fixedly installed on a working bench of related equipment, is inconvenient to move, and is low in use flexibility and poor in universality.

Disclosure of Invention

In view of the above, an object of the embodiments of the present utility model is to provide a portable tool, so as to solve the problems of single tool function, inconvenient movement, and the like in the prior art.

In a first aspect, an embodiment of the present utility model provides a portable tool, configured to compress or fix a bellows, where the bellows includes a main body pipe body and two connection pipes respectively disposed at two ends of the main body pipe body, and outer diameters of the two connection pipes are smaller than outer diameters of the main body pipe body; the portable tool comprises a first clamping ring, a second clamping ring, a pull rod and a connecting piece;

the first clamping ring and the second clamping ring are arranged in parallel along the axis direction of the first clamping ring and the second clamping ring, the pull rod is arranged between the first clamping ring and the second clamping ring and is connected with the first clamping ring or the second clamping ring through the connecting piece, and the position of the connecting piece on the pull rod is adjustable;

the first clamping ring and the second clamping ring are respectively provided with an opening which can be opened, and the openings are used for sleeving the first clamping ring or the second clamping ring outside the connecting pipe;

the inner diameters of the first clamping ring and the second clamping ring are larger than the outer diameter of the connecting pipe and smaller than the outer diameter of the main pipe body; the diameter of an inner cavity surrounded by the pull rods is larger than the outer diameter of the main pipe body.

Further, the first clamping ring and the second clamping ring respectively comprise a first body and a second body, two ends of the first body are respectively a first end and a second end, and two ends of the second body are respectively a third end and a fourth end; the first end is used for being connected with or separated from the third end, and the second end is used for being connected with or separated from the fourth end, so that the opening is opened or closed.

Further, a rotating shaft hole is formed in the first end of the first body and the third end of the second body along the axial direction of the first clamping ring or the second clamping ring, and a rotating shaft is arranged in the rotating shaft hole; the second end of the first body and the outer wall of the fourth end of the second body are respectively provided with a first connecting part along the radial direction of the first clamping ring or the second clamping ring, the two first connecting parts are correspondingly provided with connecting holes along the tangential direction of the second end of the first body or the fourth end of the second body, the connecting holes are used for penetrating locking pieces, and the locking pieces are used for locking the second end of the first body and the fourth end of the second body so that the first clamping ring or the second clamping ring forms an annular sealing structure with an inner hole.

Further, the first body with be equipped with a plurality of mounting holes on the second body respectively, a plurality of the mounting holes is followed first body or the circumference evenly distributed of second body, the mounting hole is used for wearing to establish the pull rod, just be equipped with first mounting hole of mutually supporting on the first end of first body with the third end of second body respectively, the second end of first body with the fourth end of second body is equipped with the second mounting hole of mutually supporting respectively.

Further, external threads are respectively arranged at two ends of the pull rod, and the two ends of the pull rod are respectively penetrated into the mounting holes of the first clamping ring or the second clamping ring; the connecting piece is a nut, and the pull rods on two sides of the mounting hole are respectively provided with one nut.

Further, a plurality of wire grooves are formed in the external threads of the pull rod, the wire grooves are uniformly distributed on the external threads along the length direction of the pull rod, and each wire groove extends along the circumferential direction of the pull rod.

Further, the first body and the second body are in a semicircular body shape, a plurality of second connecting portions are respectively arranged on the semicircular body, the second connecting portions are formed by extending the outer peripheral wall of the semicircular body outwards in the radial direction of the semicircular body, and the mounting holes are formed in the second connecting portions.

Further, the connecting piece is of an elastic buckle structure, and the elastic buckle comprises an outer shell, a clamping piece, a spring and a limiting rod;

the clamping piece comprises a pressing part and an annular body, the pressing part is arranged on the outer circumferential surface of the annular body, a limiting groove is formed in the pressing part, the limiting groove is arranged along the radial direction of the annular body, and the spring is arranged on the outer circumferential surface of the annular body opposite to the pressing part;

the outer shell is of an annular shell structure with a mounting groove on the side wall, the clamping piece is arranged in the outer shell, the pressing part penetrates through the mounting groove, the limiting rod is arranged at the mounting groove, the limiting rod penetrates through the limiting groove, and two ends of the limiting rod are fixedly connected with the outer shell respectively;

clamping grooves extending along the circumferential direction of the pull rod are formed in two ends of the pull rod;

the elastic clamping structure is respectively sleeved on the pull rods at two sides of the first clamping ring or the second clamping ring, and the clamping piece is used for entering or leaving the clamping groove.

Further, the number of the clamping grooves is multiple, and the clamping grooves are uniformly distributed at two ends of the pull rod along the length direction of the pull rod.

Further, the first clamping ring, the second clamping ring, the pull rod and the connecting piece are all made of stainless steel materials.

The technical scheme has the following beneficial effects: according to the portable tool disclosed by the embodiment of the utility model, the first clamping ring and the second clamping ring are respectively provided with the opening which can be opened, and the opening is arranged to facilitate the tool to be sleeved into the corrugated pipe. The internal diameter size of first snap ring and second snap ring is between the connecting pipe external diameter of bellows and the size of main part body external diameter, and the inner chamber diameter that the pull rod encloses is greater than the external diameter of bellows main part body for the frock is in the in-process of using, and the main part body of bellows is arranged in the inner chamber that the pull rod encloses, and the connecting pipe department at main part body both ends is located to first snap ring and second snap ring cover, because the internal diameter of first snap ring and second snap ring is limited, makes the frock can not remove along the length direction of bellows, can make the mounted position of frock on the bellows relatively fixed, thereby when carrying out airtight test, can play good fixed and guard action to the bellows. Meanwhile, the inner diameters of the first clamping ring and the second clamping ring are smaller than the diameter of the main body pipe body of the corrugated pipe, so that the main body pipe body of the corrugated pipe can be driven to move together when the first clamping ring or the second clamping ring moves, and the compressing function of the corrugated pipe is achieved. Because the pull rod is connected with the first clamping ring or the second clamping ring through the connecting piece, the position of the first clamping ring or the second clamping ring can be simultaneously driven to change when the relative position of the connecting piece on the pull rod is regulated, and the first clamping ring or the second clamping ring drives the main body pipe body of the corrugated pipe to move, so that the compression of the corrugated pipe is realized. The portable tool provided by the embodiment of the utility model is not required to be fixed on a working machine table of equipment, is convenient to move and disassemble at any time, has strong portability, has multiple functions of compressing and fixing the corrugated pipe, and is simple in structure and low in production cost.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a tooling and bellows installation structure according to an embodiment of the present utility model;

FIG. 2 is a schematic general structural diagram of a tooling according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a tooling according to an embodiment of the present utility model;

FIG. 4 is a schematic front view of a tooling according to an embodiment of the present utility model;

FIG. 5 is a schematic top view of a tooling according to an embodiment of the present utility model;

fig. 6 is a schematic view of a structure state of the elastic buckle structure according to the embodiment of the present utility model when the pressing portion of the connecting piece is pushed inward;

fig. 7 is a schematic view of a structure of the elastic buckle structure of the present utility model when the connecting piece is clamped.

The meaning of the various reference numerals in the drawings is as follows:

1. a tool; 11. a first snap ring; 12. a nut; 13. a pull rod; 131. an external thread; 14. a second snap ring; 141. a first body; 1411. a first end; 1412. a second end; 1413. a mounting hole; 1414. a first mounting hole; 1415. a second mounting hole; 142. a second body; 1421. a third end; 1422. a fourth end; 143. a second connecting portion; 15. an inner cavity; 16. an elastic buckle; 161. an outer housing; 162. a clamping piece; 1621. a pressing part; 1622. an annular body; 1623. a limit groove; 163. a spring; 164. a limit rod;

2. a bellows; 21. a connecting pipe; 22. a main body pipe body.

Detailed Description

Features and exemplary embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order not to unnecessarily obscure the present utility model; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The portable tool 1 of the embodiment of the utility model is used for compressing or fixing a corrugated pipe 2, as shown in fig. 1, the corrugated pipe 2 comprises a main pipe body 22 and two connecting pipes 21 respectively arranged at two ends of the main pipe body 22, and the outer diameters of the two connecting pipes 21 are smaller than the outer diameter of the main pipe body 22. The corrugated pipe 2 in the embodiment is mainly used for connecting the middle parts of an oxygen conveying pipe and a fuel gas conveying pipe of a rocket, and connecting pipes 21 at two ends of the corrugated pipe 2 are clamped into corresponding pipelines at two sides of the corrugated pipe, so that the corrugated pipe 2 is connected. The corrugated tube 2 in this embodiment is a metal tube, the main tube body 22 of which has a certain elasticity, and the oxygen delivery tube and the gas delivery tube of the rocket also use the elasticity of the corrugated tube 2 to realize flexible connection of the pipelines, and in the connection process of the corrugated tube 2, the corrugated tube 2 needs to be compressed to well connect the corrugated tube 2 with the pipelines at the two ends of the corrugated tube. Because the oxygen delivery pipe and the gas delivery pipe need to be subjected to airtight test and inspection after installation, leakage points are prevented from being existed in the pipeline, the pipeline needs to be inflated when airtight test is carried out, the radial and longitudinal expansion of the corrugated pipe 2 can be caused by the increase of the pressure in the pipeline, and the radial and length directions of the corrugated pipe 2 need to be limited in order to prevent the corrugated pipe 2 from falling off and being seriously deformed, so that the corrugated pipe 2 is protected.

As shown in fig. 1 to 7, the portable tool 1 of the present embodiment includes a first snap ring 11, a second snap ring 14, a pull rod 13, and a connecting member.

The first clamping ring 11 and the second clamping ring 14 are arranged in parallel along the axis direction of the first clamping ring 11 and the second clamping ring 14, the pull rod 13 is arranged between the first clamping ring 11 and the second clamping ring 14 and is connected with the first clamping ring 11 or the second clamping ring 14 through a connecting piece, and the position of the connecting piece on the pull rod 13 is adjustable.

The first clamping ring 11 and the second clamping ring 14 are respectively provided with an opening which can be opened, and the openings are used for sleeving the first clamping ring 11 or the second clamping ring 14 outside the connecting pipe 21.

The inner diameters of the first clamping ring 11 and the second clamping ring 14 are larger than the outer diameter of the connecting pipe 21 and smaller than the outer diameter of the main pipe body 22; the diameter of the inner cavity 15 surrounded by the pull rods 13 is larger than the outer diameter of the main pipe body 22.

In practice, the pull rod 13 may have a variety of different dimensions, such as different lengths or different diameter sizes, as desired. The diameter of the inner cavity 15 surrounded by the pull rod 13 is slightly larger than the outer diameter of the main pipe body 22, and the specific size can be specifically selected according to actual needs. The present embodiment is limited only to the inner diameters of the first snap ring 11 and the second snap ring 14, and there is no particular requirement for the outer circumferential dimensions and outer circumferential shapes of the first snap ring 11 and the second snap ring 14, for example, the outer circumference of the snap ring may be various shapes such as square, polygonal, or circular. The specific number of the tie rods 13 in the present embodiment is not limited, and may be 6, 8, or the like.

As shown in fig. 3, the first snap ring 11 and the second snap ring 14 respectively include a first body 141 and a second body 142, two ends of the first body 141 are respectively a first end 1411 and a second end 1412, and two ends of the second body 142 are respectively a third end 1421 and a fourth end 1422; the first end 1411 is adapted to be coupled to and uncoupled from the third end 1421, and the second end 1412 is adapted to be coupled to and uncoupled from the fourth end 1422, thereby opening or closing the opening.

The first body 141 and the second body 142 respectively include two end portions, wherein the first end 1411 and the third end 1421 are connected and can be used as rotation shafts, so that the second end 1412 and the fourth end 1422 can be opened or closed by the first clamping ring 11 or the second clamping ring 14, and the tool 1 can be conveniently sleeved outside the corrugated pipe 2.

In one embodiment, the snap ring structure of the present embodiment is not shown in the drawings, and the first end 1411 and the third end 1421 are provided with a rotation shaft hole along the axial direction of the first snap ring 11 or the second snap ring 14, and the rotation shaft hole is internally provided with a rotation shaft; the outer walls of the second end 1412 and the fourth end 1422 are respectively provided with a first connecting part along the radial direction of the first clamping ring 11 or the second clamping ring 14, the two first connecting parts are correspondingly provided with connecting holes along the tangential direction of the second end 1412 or the fourth end 1422, the connecting holes are used for penetrating locking pieces, and the locking pieces are used for locking the second end 1412 and the fourth end 1422 so that the first clamping ring 11 or the second clamping ring 14 forms an annular closed structure with an inner hole.

In this embodiment, the first clamping ring 11 and the second clamping ring 14 are similar to a clamping ring, the first body 141 and the second body 142 are rotatably connected through a rotating shaft, the clamping ring is sleeved into the corrugated tube 2 after being opened, and the two bodies are locked by penetrating locking members in the connecting holes, wherein the locking members can be split nuts or common bolts. At this time, the first body 141 and the second body 142 may be provided with mounting holes 1413 for mounting the tie rod 13 at other positions than both end portions.

As shown in fig. 3, in another embodiment, a plurality of mounting holes 1413 are respectively provided on the first body 141 and the second body 142, the plurality of mounting holes 1413 are uniformly distributed along the circumferential direction of the first body 141 or the second body 142, the mounting holes 1413 are used for penetrating the tie rod 13, first mounting holes 1414 are respectively provided on the first end 1411 of the first body 141 and the third end 1421 of the second body 142, and second mounting holes 1415 are respectively provided on the second end 1412 of the first body 141 and the fourth end 1422 of the second body 142.

In this embodiment, the first body 141 and the second body 142 have identical structures, which is convenient for manufacturing and processing, reduces the investment types of parts, can reduce the cost, and enhances the versatility of the parts. The two bodies are symmetrically arranged, the first body 141 and the second body 142 are spliced into a ring shape through arranging the mounting holes 1413 at the end parts of the two bodies respectively, and after being clamped outside the connecting pipe 21 of the corrugated pipe 2, the two pull rods 13 are inserted into the first mounting holes 1414 and the second mounting holes 1415 respectively and locked through connecting pieces. The frock 1 of this embodiment is the preferred embodiment, and it need not to additionally set up pivot spare and retaining member when installing the connecting piece, has reduced the kind and the number of part, and the installation of being convenient for more also can reduce manufacturing cost. The first mounting hole 1414 and the second mounting hole 1415 also belong to the mounting hole 1413, only for connecting the first body 141 and the second body 142, two first mounting holes 1414 are needed and used cooperatively, and the same applies to the second mounting hole 1415.

External threads 131 are respectively arranged at two ends of the pull rod 13, and the two ends of the pull rod 13 are respectively penetrated into the mounting holes 1413 of the first clamping ring 11 or the second clamping ring 14; the connecting piece is a nut 12, and one nut 12 is respectively arranged on the pull rods 13 at two sides of the mounting hole 1413.

In this embodiment, two ends of the pull rod 13 are provided with external threads 131 with a certain length, and nuts 12 are respectively installed on two sides of the snap ring to lock the snap ring. Because the thread section has a certain length, the position of the connecting piece nut 12 on the pull rod 13 can be changed by adjusting the distance of screwing the two nuts 12 on two sides of the snap ring into the pull rod 13, so that the position of the snap ring on the pull rod 13 is changed. For example, when the bellows 2 needs to be compressed, the position of the nut 12 is adjusted toward the center of the pull rod 13, so that the first clamping ring 11 or the second clamping ring 14 can be moved inward, thereby realizing the compression function on the main body 22 of the bellows 2.

The external thread 131 of the pull rod 13 is provided with a plurality of wire grooves (not shown), the plurality of wire grooves are uniformly distributed on the external thread 131 along the length direction of the pull rod 13, and each wire groove extends along the circumferential direction of the pull rod 13.

In order to make the adjustment of the connecting piece simpler and more accurate, a plurality of wire grooves for marking can be additionally arranged on the screw thread, the wire grooves are arc-shaped wire grooves, and are only formed on part of the circumferential surface of the pull rod 13 instead of the round grooves, so that the use of the external screw thread 131 is not affected. The wire casing can be according to the interval distance that actual need select to set up, say every 1cm, 2cm, 3cm etc. set up a wire casing, set up the purpose of wire casing in order that nut 12 keeps the uniformity of the distance of adjusting at the in-process of adjusting, the wire casing setting of every pull rod 13 has uniformity, when the wire casing department of same position is all adjusted to a plurality of nuts 12, the position of a plurality of nuts 12 on pull rod 13 can keep uniformity, can make bellows 2 atress more even when compressing like this.

The first body 141 and the second body 142 are both in a shape of a semicircular ring body, a plurality of second connecting portions 143 are respectively arranged on the semicircular ring body, the second connecting portions 143 are formed by extending the outer peripheral wall of the semicircular ring body outwards along the radial direction of the semicircular ring body, and the mounting holes 1413 are formed in the second connecting portions 143.

In this embodiment, the whole design that forms after connecting first snap ring 11 or second snap ring 14 becomes the ring form, and set up convex connecting portion in the periphery of ring, set up again on the connecting portion and be used for connecting the mounting hole 1413 of pull rod 13, the distance of mounting hole 1413 and ring center is compared with the outer periphery of ring and the distance at ring center increases to some extent, can make things convenient for the installation of pull rod 13, provide certain installation space for the installation of pull rod 13, simultaneously, this embodiment does not design the connecting portion as monolithic, that is to say the wall thickness thickening of whole ring, then directly set up mounting hole 1413 on the ring, compared with monolithic design, the design of this embodiment is more practiced thrift the raw materials, and production cost is reduced, simultaneously, the whole weight of frock 1 has been alleviateed, make frock 1 portable and remove more.

In another embodiment, as shown in fig. 6 and 7, the connecting member is an elastic buckle structure, and the elastic buckle 16 includes an outer housing 161, a clamping piece 162, a spring 163 and a limiting rod 164;

the clamping piece 162 comprises a pressing part 1621 and an annular body 1622, the pressing part 1621 is arranged on the outer circumferential surface of the annular body 1622, a limiting groove 1623 is formed in the pressing part 1621, the limiting groove 1623 is arranged along the radial direction of the annular body 1622, and the spring 163 is arranged on the outer circumferential surface of the annular body 1622 opposite to the pressing part 1621;

the outer shell 161 is of an annular shell structure with a mounting groove on the side wall, the clamping piece 162 is arranged in the outer shell 161, the pressing part 1621 is arranged in the mounting groove in a penetrating manner, the limiting rod 164 is arranged in the limiting groove 1623 in a penetrating manner, and two ends of the limiting rod 164 are fixedly connected with the outer shell 161 respectively;

clamping grooves (not shown) extending along the circumferential direction of the pull rod 13 are formed at two ends of the pull rod 13;

the elastic buckle 16 is respectively sleeved on the pull rods 13 at two sides of the first clamping ring 11 or the second clamping ring 14, and the clamping piece 162 is used for entering into or leaving from the clamping groove.

In the connecting piece of this embodiment, the clamping piece 162 is located in the outer shell 161, the position of the clamping piece 162 relative to the outer shell 161 can be changed by the action of the spring 163 and the pressing force, the moving stroke of the clamping piece 162 is limited by the cooperation of the limiting groove 1623 and the limiting rod 164, as shown in fig. 6, when the pressing part 1621 is pressed, the spring 163 compresses, the inner hole of the annular body 1622 of the clamping piece 162 coincides with the inner hole of the outer shell 161, so that the connecting piece can move on the pull rod 13, when the connecting piece moves to a required position, as shown in fig. 7, the pressing part 1621 is released, the spring 163 resets, the clamping piece 162 moves towards the limiting rod 164, the inner hole of the clamping piece 162 is not coincident with the inner hole of the outer shell 161, the inner hole aperture of the whole connecting piece is reduced, and the clamping piece 162 is clamped into the groove Xiang Kajin of the pull rod 13, so that the fixing between the connecting piece and the pull rod 13 and the clamping ring is realized. The connecting piece of this embodiment has the effect of easy to assemble, need not to use extra appurtenance to fix pull rod 13 and snap ring.

The quantity of chucking groove is a plurality of, and a plurality of chucking grooves are evenly distributed in the both ends of pull rod 13 along the length direction of pull rod 13.

The pull rod 13 is provided with a plurality of clamping grooves, so that the position of the connecting piece on the pull rod 13 can be conveniently adjusted, and meanwhile, the adjusting precision is improved.

The first clamping ring 11, the second clamping ring 14, the pull rod 13 and the connecting piece are all made of stainless steel materials.

Specifically, in this embodiment, all components of the whole tool 1 are made of austenitic stainless steel made of 1Cr18Ni9Ti material, and by adopting the stainless steel, the overall performance of the tool 1 can be improved, the stress requirement of the tool 1 can be met, meanwhile, the tool 1 can be prevented from being rusted by adopting stainless steel, and the service life of the tool 1 can be prolonged.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by "upper, lower, inner and outer", etc. in terms are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first, second, or third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The terms "mounted, connected, and coupled" should be construed broadly in this disclosure unless otherwise specifically indicated and defined, such as: can be fixed connection, detachable connection or integral connection; it may also be a mechanical connection, an electrical connection, or a direct connection, or may be indirectly connected through an intermediate medium, or may be a communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

While the utility model has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A portable tool (1) for compressing or fixing a corrugated pipe (2), wherein the corrugated pipe (2) comprises a main pipe body (22) and two connecting pipes (21) respectively arranged at two ends of the main pipe body (22), and the outer diameters of the two connecting pipes (21) are smaller than the outer diameter of the main pipe body (22); the portable tool (1) is characterized by comprising a first clamping ring (11), a second clamping ring (14), a pull rod (13) and a connecting piece;

the first clamping ring (11) and the second clamping ring (14) are arranged in parallel along the axis direction of the first clamping ring (11) and the second clamping ring (14), the pull rod (13) is arranged between the first clamping ring (11) and the second clamping ring (14), the first clamping ring (11) or the second clamping ring (14) is connected through the connecting piece, and the position of the connecting piece on the pull rod (13) is adjustable;

the first clamping ring (11) and the second clamping ring (14) are respectively provided with an opening which can be opened, and the openings are used for sleeving the first clamping ring (11) or the second clamping ring (14) outside the connecting pipe (21);

the inner diameters of the first clamping ring (11) and the second clamping ring (14) are larger than the outer diameter of the connecting pipe (21) and smaller than the outer diameter of the main pipe body (22); the diameter of an inner cavity (15) surrounded by the pull rods (13) is larger than the outer diameter of the main pipe body (22).

2. The portable tool (1) according to claim 1, wherein the first snap ring (11) and the second snap ring (14) respectively comprise a first body (141) and a second body (142), two ends of the first body (141) are respectively a first end (1411) and a second end (1412), and two ends of the second body (142) are respectively a third end (1421) and a fourth end (1422); the first end (1411) is configured to be connected to or disconnected from the third end (1421), and the second end (1412) is configured to be connected to or disconnected from the fourth end (1422) so as to open or close the opening.

3. The portable tool (1) according to claim 2, wherein the first end (1411) of the first body (141) and the third end (1421) of the second body (142) are provided with a rotation shaft hole along the axial direction of the first clamping ring (11) or the second clamping ring (14), and the rotation shaft hole is internally provided with a rotation shaft; the second end (1412) of the first body (141) and the outer wall of the fourth end (1422) of the second body (142) are respectively provided with a first connecting part along the radial direction of the first clamping ring (11) or the second clamping ring (14), the two first connecting parts are correspondingly provided with connecting holes along the tangential direction of the second end (1412) of the first body (141) or the fourth end (1422) of the second body (142), the connecting holes are used for penetrating locking pieces, and the locking pieces are used for locking the second end (1412) of the first body (141) and the fourth end (1422) of the second body (142) so that the first clamping ring (11) or the second clamping ring (14) form an annular closed structure with an inner hole.

4. The portable tool (1) according to claim 2, wherein a plurality of mounting holes (1413) are respectively formed in the first body (141) and the second body (142), the plurality of mounting holes (1413) are uniformly distributed along the circumferential direction of the first body (141) or the second body (142), the mounting holes (1413) are used for penetrating the pull rod (13), first mounting holes (1414) which are mutually matched are respectively formed in a first end (1411) of the first body (141) and a third end (1421) of the second body (142), and second mounting holes (1415) which are mutually matched are respectively formed in a second end (1412) of the first body (141) and a fourth end (1422) of the second body (142).

5. The portable tool (1) according to claim 4, wherein external threads (131) are respectively arranged at two ends of the pull rod (13), and two ends of the pull rod (13) are respectively penetrated into the mounting holes (1413) of the first clamping ring (11) or the second clamping ring (14); the connecting piece is a nut (12), and the pull rods (13) on two sides of the mounting hole (1413) are respectively provided with one nut (12).

6. The portable tool (1) according to claim 5, wherein a plurality of wire grooves are formed in the external thread (131) of the pull rod (13), the wire grooves are uniformly distributed on the external thread (131) along the length direction of the pull rod (13), and each wire groove extends along the circumferential direction of the pull rod (13).

7. The portable tool (1) according to claim 4, wherein the first body (141) and the second body (142) are both semi-annular bodies, a plurality of second connection portions (143) are respectively arranged on the semi-annular bodies, the second connection portions (143) are formed by extending the outer peripheral wall of the semi-annular bodies outwards along the radial direction of the semi-annular bodies, and the mounting holes (1413) are formed in the second connection portions (143).

8. The portable tool (1) according to claim 4, wherein the connecting piece is an elastic buckle (16) structure, and the elastic buckle (16) comprises an outer shell (161), a clamping piece (162), a spring (163) and a limiting rod (164);

the clamping piece (162) comprises a pressing part (1621) and an annular body (1622), the pressing part (1621) is arranged on the outer circumferential surface of the annular body (1622), a limiting groove (1623) is formed in the pressing part (1621), the limiting groove (1623) is arranged along the radial direction of the annular body (1622), and the spring (163) is arranged on the outer circumferential surface of the annular body (1622) opposite to the pressing part (1621);

the outer shell (161) is of an annular shell structure with a mounting groove on the side wall, the clamping piece (162) is arranged in the outer shell (161), the pressing part (1621) is arranged in the mounting groove in a penetrating mode, the limiting rod (164) is arranged in the limiting groove (1623) in a penetrating mode, and two ends of the limiting rod (164) are fixedly connected with the outer shell (161) respectively;

clamping grooves extending along the circumferential direction of the pull rod (13) are formed at two ends of the pull rod (13);

the elastic buckle (16) structure is respectively sleeved on the pull rod (13) at two sides of the first clamping ring (11) or the second clamping ring (14), and the clamping piece (162) is used for entering or leaving the clamping groove.

9. The portable tool (1) according to claim 8, wherein the number of the clamping grooves is plural, and the plurality of the clamping grooves are uniformly distributed at two ends of the pull rod (13) along the length direction of the pull rod (13).

10. The portable tool (1) according to claim 1, wherein the first snap ring (11), the second snap ring (14), the pull rod (13) and the connection piece are all made of stainless steel material.

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