CN112317852A

CN112317852A - Double-wall corrugated pipe cutter with fine adjustment structure

Info

Publication number: CN112317852A
Application number: CN202011234040.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hu Kunhong
Current assignee: Hu Kunhong
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2021-02-05
Also published as: CN111318753A; CN111318753B

Abstract

The invention discloses a double-wall corrugated pipe cutter with a fine adjustment structure, which comprises: a pair of positioning hoops; the main support comprises an annular main lantern ring, and three long-strip-shaped main transverse strips are arranged on the side wall of the main lantern ring; the main rotating shaft penetrates through the main lantern ring; the main cylinder seat is arranged at the tail part of the main rotating shaft; the return spring is arranged on the main cylinder seat; the connecting fork is arranged on the main cylinder seat and extrudes the return spring; the screw-in clamping ring is arranged on the main cylinder seat and extrudes the connecting fork; a handle connected with the main rotating shaft; three detachable extension components arranged between the connecting fork and the main bracket; the cutter component is detachably arranged at the head of the main rotating shaft and comprises a fine adjustment hand wheel. Due to the adoption of the three extension assemblies, the blades can effectively cut the inner wall of the pipe, the cut is neat and attractive, the operation is easy, and the cutting efficiency is high.

Description

Double-wall corrugated pipe cutter with fine adjustment structure

The present application is a divisional application of the patent application having application number 2020101494485, entitled double-wall corrugated pipe cutter, filed as 03/06/2020.

Technical Field

The present invention relates to a bellows installation apparatus, and more particularly, to a double-wall bellows cutter.

Background

The double-wall corrugated pipe requires a large amount of cutting work when being installed. Because the outer wall of the double-wall corrugated pipe is wavy, a cutter is difficult to position and is easy to slip when a worker cuts the corrugated pipe.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art, and provides a double-wall corrugated pipe cutter.

The technical problem of the invention is mainly solved by the following technical scheme:

a double-walled bellows cutter, comprising:

a pair of positioning hoops;

the main support comprises an annular main lantern ring, and three long-strip-shaped main transverse strips are arranged on the side wall of the main lantern ring;

the main rotating shaft penetrates through the main sleeve ring;

the main cylinder seat is arranged at the tail part of the main rotating shaft;

the return spring is arranged on the main cylinder seat;

the connecting fork is arranged on the main cylinder seat and extrudes the return spring;

the annular precession clamping ring is arranged on the main cylinder seat and extrudes the connecting fork;

the handle is connected with the main rotating shaft;

the extension assembly is arranged between the connecting fork and the main support and comprises a long strip-shaped first connecting piece, a rod-shaped second connecting piece, a door-shaped clamping support and a clamping sliding block.

A double-walled bellows cutter, comprising:

the positioning clamp comprises a C-shaped clamp main body, two ends of the clamp main body are respectively provided with a clamp connector, the clamp connectors are respectively provided with a clamp connecting hole, the clamp connecting holes are connected through clamp screws, and the outer wall of the clamp main body is provided with a plurality of uniformly arranged clamp screw barrels;

the main support comprises an annular main sleeve ring, three long-strip-shaped main transverse strips are arranged on the side wall of the main sleeve ring, a plurality of main sleeve screw holes are formed in the circumferential direction of the main sleeve ring, a penetrating guide channel is arranged in the center of the main transverse strip and is arranged in the radial direction of the main sleeve ring, a first guide circular groove opening and a second guide circular groove opening are formed in the side wall of the main transverse strip, and the arrangement direction of the second guide circular groove opening is perpendicular to that of the first guide circular groove opening;

the main rotating shaft penetrates through the main lantern ring, a main shaft bearing and a main shaft nut are arranged at the head of the main rotating shaft, the main shaft bearing is arranged in the main lantern ring, and a main shaft connecting protrusion is arranged at the tail of the main rotating shaft;

the main cylinder seat is arranged at the tail part of the main rotating shaft and comprises a cylindrical main thread cylinder body and an annular main seat body, external threads are arranged on the outer wall of the main thread cylinder body, a plurality of main seat screw holes are arranged on the main seat body, and the main seat screw holes are connected with the main sleeve screw holes through main cylinder screws;

the return spring is arranged on the main thread cylinder body of the main cylinder seat;

the connecting fork is arranged on the main thread cylinder and extrudes the reset spring, the connecting fork comprises an annular fork ring, three pairs of strip-shaped fork strips are arranged on the side wall of the fork ring, and fork head round holes are arranged on the fork strips;

the screw-in clamping ring is arranged at the tail of the main thread cylinder and extrudes the connecting fork, internal threads are arranged on the inner wall of the screw-in clamping ring, and the internal threads are matched with the external threads on the outer wall of the main thread cylinder;

the handle cross bar is arranged at the tail end of the main rotating shaft, a bayonet and a handle connecting hole are formed in the handle cross bar, and the bayonet is matched with the main shaft in a protruding mode;

the handle is rotatably connected with the handle connecting hole;

the three detachable extension assemblies are arranged between the connecting fork and the main bracket, each extension assembly comprises a first long strip-shaped connecting piece, a second rod-shaped connecting piece, a door-shaped clamping bracket and a clamping sliding block, a first connecting hole is formed in the head of each first connecting piece, a second connecting hole is formed in the tail of each first connecting piece, a second connecting protrusion is arranged at the tail of each second connecting piece, a second protruding screw hole is formed in each second connecting protrusion, a second connecting opening is formed in the head of each second connecting piece, second side wall through holes are formed in two side walls of each second connecting opening respectively, a first pin rod penetrates through the first connecting hole and the fork head circular hole, a second pin rod penetrates through the second connecting hole and the second side wall through hole, and each clamping bracket comprises an upper clamping plate and a lower clamping plate, a connecting plate is arranged between the upper clamping plate and the lower clamping plate, a dovetail sliding groove is formed in the upper clamping plate, a through long circular sliding groove notch is formed in the bottom of the dovetail sliding groove, the lower clamping plate comprises an arc-shaped lower clamping cambered surface and a through lower clamping screw hole, the lower clamping screw hole is connected with the second protruding screw hole through a second protruding screw, the cross section of the clamping sliding block is in a dovetail shape, a sliding block locking screw hole is formed in the middle of the clamping sliding block, and a sliding block screw rod penetrates through the sliding block locking screw hole and the sliding groove notch and is fixedly connected with the clamping hoop screw barrel;

a cutter unit, cutter unit detachably set up the head of main pivot, cutter unit contain a long banding blade holder, the one end of blade holder be equipped with a blade mounting groove, the blade mounting groove in be equipped with the blade regulation notch that runs through of a long circle, the other end of blade holder be equipped with a cutter mounting hole, the cutter mounting hole through a pair of cutter nut with main pivot be connected, the blade mounting groove in be equipped with a blade, the afterbody of blade be equipped with a blade hole, a blade screw runs through blade hole and blade regulation notch to be connected with a blade nut.

A double-walled bellows cutter, comprising:

the handle is rotatably connected with the handle connecting hole;

a cutter assembly, the cutter assembly detachably set up the head of main rotating shaft, the cutter assembly contain a pair of long banding blade holders, one end of blade holder be equipped with a blade mounting groove, the blade mounting groove in be equipped with the blade adjustment notch that runs through of a long circle, the other end of blade holder be equipped with a cutter mounting hole, the cutter mounting hole through a pair of cutter nut with main rotating shaft be connected, the blade mounting groove in be equipped with a blade, the afterbody of blade be equipped with a blade hole, a blade screw run through blade hole and blade adjustment notch to be connected with a blade nut,

the middle part of the tool apron is provided with a through adjusting window, one side of the adjusting window is provided with a front inner wall semicircular groove, the other side of the adjusting window is provided with a rear inner wall semicircular groove, the adjusting window is internally provided with a rotatable fine adjusting hand wheel, the center of the fine adjusting hand wheel is provided with a hand wheel threaded hole, a driving screw rod is arranged between the front inner wall semicircular groove and the rear inner wall semicircular groove and penetrates through the hand wheel threaded hole, the head part of the driving screw rod is provided with a separable push sheet, the tail part of the driving screw rod is provided with a compression spring, the push sheet is slidably arranged in the blade mounting groove, the front side wall of the push sheet is provided with a blade clamping opening, and the size of the blade clamping opening is matched with the thickness of the blade,

and four corners of the cutter holder are respectively provided with a cutter holder connecting hole, and the cutter holder connecting holes are connected through a cutter holder connecting screw.

A double-walled bellows cutter, comprising:

a main rotating shaft, the main rotating shaft penetrates through the main lantern ring, the head of the main rotating shaft is provided with a main shaft bearing and a main shaft nut, the main shaft bearing is arranged in the main lantern ring, the tail of the main rotating shaft is provided with a main shaft connecting protrusion,

the center of the main rotating shaft is provided with a through main shaft screw hole, the side wall of the head part of the main rotating shaft is provided with a through fine adjustment window, a fine adjustment long screw rod is arranged in the main shaft screw hole, the head part of the fine adjustment long screw rod is provided with a conical first conical head, the tail part of the fine adjustment long screw rod is provided with a poke rod,

the handle is rotatably connected with the handle connecting hole;

the inner wall of the cutter holder is provided with a guide semicircular groove, the guide semicircular groove is provided with a slidable driving support, the driving support comprises a rod-shaped driving polished rod, the head of the driving polished rod is provided with a sheet-shaped chuck, the front side wall of the chuck is provided with a chuck opening, the size of the chuck opening is adapted to the thickness of the blade, the tail part of the driving polished rod is provided with a conical second conical head, the second conical head is matched with the first conical head,

The double-wall corrugated pipe cutter has the following advantages: due to the adoption of the three extension assemblies, the blades can effectively cut the inner wall of the pipe, the cut is neat and attractive, the operation is easy, and the cutting efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic representation of the use of the double wall bellows cutter of the present invention;

FIG. 2 is a schematic representation of the use of the double-wall bellows cutter of FIG. 1, shown in an exploded view;

FIG. 3 is a further exploded perspective view of the double wall bellows cutter of FIG. 2;

FIG. 4 is an enlarged detail view of the area X1 in FIG. 3;

FIG. 5 is a further exploded perspective view of the double wall bellows cutter of FIG. 3;

FIG. 6 is a perspective view of a clevis of the double wall bellows cutter of FIG. 5;

FIG. 7 is an enlarged detail view of the area X2 in FIG. 5;

FIG. 8 is an exploded perspective view of a cutter assembly of the double wall bellows cutter of FIG. 5;

FIG. 9 is an exploded perspective view of the extension assembly of the double wall bellows cutter of FIG. 5;

FIG. 10 is a further exploded perspective view of the double wall bellows cutter of FIG. 5;

FIG. 11 is an enlarged detail view of the area X3 in FIG. 10;

FIG. 12 is an enlarged detail view of the area X4 in FIG. 10;

FIG. 13 is a perspective view of a second embodiment of a double wall bellows cutter of the present invention, only part of which is shown;

FIG. 14 is an exploded perspective view of the double wall bellows cutter of FIG. 13;

FIG. 15 is a further exploded perspective view of the double wall bellows cutter of FIG. 14;

figure 16 is a perspective view of a push plate of the double wall bellows cutter of figure 15,

FIG. 17 is a schematic perspective view of a third embodiment of a double wall bellows cutter of the present invention, showing only a portion of the construction;

FIG. 18 is an exploded perspective view of the double wall bellows cutter of FIG. 17;

FIG. 19 is an enlarged detail view of the area X5 in FIG. 17;

FIG. 20 is an enlarged detail view of the area X6 in FIG. 18;

FIG. 21 is a further exploded perspective view of the double wall bellows cutter of FIG. 18;

FIG. 22 is an enlarged detail view of the area X7 in FIG. 21;

FIG. 23 is an enlarged detail view of the area X8 in FIG. 21;

FIG. 24 is a schematic representation of the use of the double wall bellows cutter of FIG. 17;

fig. 25 is an enlarged detail view of the region X9 in fig. 24.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.

As shown in fig. 1 to 12, the double-walled bellows cutter 1 includes a pair of positioning clips 2, a main bracket 3, and a main shaft 5.

This location clamp 2 contains the clamp main part 21 of a "C" font, and the both ends of this clamp main part 21 are equipped with a clamp connector 22 respectively, are equipped with a clamp connecting hole 23 on this clamp connector 22 respectively, and this clamp connecting hole 23 is connected through a clamp screw 25, is equipped with the clamp spiral shell section of thick bamboo 24 of a plurality of even settings on the outer wall of this clamp main part 21.

This main support 3 contains an annular main lantern ring 31, be equipped with three long banding main horizontal bar 32 on the lateral wall of this main lantern ring 31, be equipped with a plurality of main lantern ring holes 312 in the circumference of this main lantern ring 31, the center of this main horizontal bar 32 is equipped with a guide channel 321 that runs through, this guide channel 321 sets up in this main lantern ring 31's footpath, be equipped with a first direction round notch 322 and a second direction round notch 323 on this main horizontal bar 32's the lateral wall, this second direction round notch 323 set up the direction and this first direction round notch 322 mutually perpendicular.

The main shaft 5 penetrates the main collar 31, a main shaft bearing 51 and a main shaft nut 52 are disposed at the head of the main shaft 5, the main shaft bearing 51 is disposed in the main collar 31, and a main shaft connecting protrusion 53 is disposed at the tail of the main shaft 5.

A main cylinder seat 4 is further disposed at the tail of the main rotating shaft 5, the main cylinder seat 4 includes a cylindrical main thread cylinder 42 and an annular main seat body 41, the outer wall of the main thread cylinder 42 is provided with external threads, the main seat body 41 is provided with a plurality of main seat screw holes 43, and the main seat screw holes 43 are connected with the main sleeve screw holes 312 through a main cylinder screw 44. A return spring 10 is provided on the main threaded cylinder 42 of the main cylinder holder 4.

The main barrel seat 4 is provided with a connection fork 6, the connection fork 6 is arranged on the main thread barrel 42 and presses the return spring 10, the connection fork 6 comprises an annular fork ring 61, the side wall of the fork ring 61 is provided with three pairs of long-strip-shaped fork strips 62, and fork head round holes 63 are arranged on the fork strips 62.

An annular screwing snap ring 7 is arranged on the main thread cylinder 42, the screwing snap ring 7 is arranged at the tail part of the main thread cylinder 42 and extrudes the connecting fork 6, an internal thread 71 is arranged on the inner wall of the screwing snap ring 7, and the internal thread 71 is matched with an external thread on the outer wall of the main thread cylinder 42.

A handle bar 8 is provided at the tail end of the main shaft 5, a bayonet 81 and a handle attachment hole 82 are provided on the handle bar 8, the bayonet 81 is engaged with the main shaft attachment protrusion 53, and a handle 9 is rotatably attached to the handle attachment hole 82.

Three detachable extension assemblies M are provided between the yoke 6 and the main frame 3, and include an elongated first connecting member 13, a rod-shaped second connecting member 14, a door-shaped snap bracket 16, and a snap slider 17.

The second connector 14 is slidably disposed in the corresponding guide channel 321.

The head of the first connecting member 13 is provided with a first connecting hole 131, the tail of the first connecting member 13 is provided with a second connecting hole 132, the tail of the second connecting member 14 is provided with a second connecting protrusion 141, the second connecting protrusion 141 is provided with a second protrusion screw hole 142, the head of the second connecting member 14 is provided with a second connecting opening 143, two side walls of the second connecting opening 143 are respectively provided with a second side wall through hole 144, a first pin 133 penetrates through the first connecting hole 131 and the fork head circular hole 63, a second pin 145 penetrates through the second connecting hole 132 and the second side wall through hole 144, the clamping bracket 16 comprises an upper clamping plate 161 and a lower clamping plate 163, a connecting plate 162 is arranged between the upper clamping plate 161 and the lower clamping plate 163, the upper clamping plate 161 is provided with a dovetail sliding groove 166, the bottom of the sliding groove 166 is provided with a dovetail long circular sliding groove 167, the lower clamping plate 163 includes an arc-shaped lower clamping arc surface 164 and a lower clamping screw hole 165 penetrating therethrough, the lower clamping screw hole 165 is connected to the second protruding screw hole 142 via a second protruding screw 15, the cross section of the clamping slider 17 is dovetail-shaped, a slider locking screw hole 171 is provided in the middle of the clamping slider 17, and a slider screw 18 penetrates through the slider locking screw hole 171 and the sliding groove notch 167 and is fixedly connected to the clamp barrel 24.

A detachable cutter assembly 11 is disposed at the head of the main shaft 5, the cutter assembly 11 includes an elongated cutter holder 111, one end of the cutter holder 111 is provided with a cutter mounting groove 113, an oblong through-passing cutter adjustment notch 114 is disposed in the cutter mounting groove 113, the other end of the cutter holder 111 is provided with a cutter mounting hole 112, the cutter mounting hole 112 is connected to the main shaft 5 through a pair of cutter nuts 12, a cutter 115 is disposed in the cutter mounting groove 113, a cutter hole 1151 is disposed at the tail of the cutter 115, and a cutter screw 116 penetrates through the cutter hole 1151 and the cutter adjustment notch 114 and is connected to a cutter nut 117.

The following method of using the double-wall bellows cutter 1 comprises the steps of:

step S1, hooping the pair of positioning hoops 2 in the ring grooves on the outer wall of the pipe T, and hooping the pair of positioning hoops 2 by using the hoop screws 25;

step S2, as shown in fig. 3, rotating the screwing snap ring 7 to make the screwing snap ring 7 move towards the head along the axial direction of the main thread cylinder 42, so that the screwing snap ring 7 presses the connection fork 6, the connection fork 6 drives the first connection piece 13 and the second connection piece 14 of the extension assembly M, and the clamping support 16 of the extension assembly M extends outwards until the position of the clamping support 16 reaches the edge of the pipe T;

step S3, as shown in FIG. 1, clamping the clamping brackets 16 of the three stretching assemblies M on the edge of the pipe T respectively, sliding the clamping slide block 17 to a proper position, and screwing the three slide block screw rods 18;

step S4, adjusting the blade screw 116 of the cutter assembly 11 so that the blade 115 obtains a proper cutting depth;

step S4, manually shaking the handle 9 so that the blade 115 cuts the inner wall of the tube T.

Due to the adoption of the three extension assemblies, the blades can effectively cut the inner wall of the pipe, the cut is neat and attractive, the operation is easy, and the cutting efficiency is high.

As shown in fig. 13 to 16, which are second embodiments of the present invention, only a partial structure is shown here. Different from the first embodiment, the cutter assembly 11A includes a pair of strip-shaped cutter holders 111A, a through adjusting window 1111A is disposed in the middle of the cutter holders 111A, a front inner wall semicircular groove 1112A is disposed on one side of the adjusting window 1111A, a rear inner wall semicircular groove 1113A is disposed on the other side of the adjusting window 1111A, a rotatable fine adjusting hand wheel 118A is disposed in the adjusting window 1111A, a hand wheel threaded hole 1180A is disposed in the center of the fine adjusting hand wheel 118A, a driving screw 119A is disposed between the front inner wall semicircular groove 1112A and the rear inner wall semicircular groove 1113A, the driving screw 119A penetrates through the hand wheel threaded hole 1180A, a separable push plate 1181A is disposed at the head of the driving screw 119A, a compression spring 1182A is disposed at the tail of the driving screw 119A, the push plate 1181A is slidably disposed in the cutter mounting groove 113, a cutter holder 1183A is disposed on the front side wall of the push plate 1181A, the insert holder 1183A has a size corresponding to the thickness of the insert 115, and the four corners of the holder 111A are respectively provided with a holder connecting hole 1114A, and the holder connecting holes 1114A are connected by a holder connecting screw 1110A.

The second embodiment of the present invention will be explained below.

During the cutting process of the blade 115, a user can directly use fingers to dial the fine adjustment handwheel 118A, so that the fine adjustment handwheel 118A rotates, the drive screw 119A advances and presses the push piece 1181A to advance, and the blade 115 advances forward, so that the cutting depth of the blade 115 is increased. When the user apparently feels that the blade 115 encounters a greater resistance, the fine adjustment handwheel 118A may be rotated in the opposite direction, causing the blade 115 to retract a portion.

Because the cutting depth of the blade 115 can be continuously finely adjusted along with the change of the cutting depth, the applicability is better, the cutting speed is higher, and the blade can be prevented from being broken due to overlarge resistance.

As shown in fig. 17 to 23, which are a third embodiment of the present invention, only a partial structure is shown here. Different from the first embodiment, a through spindle screw hole 50B is formed in the center of the spindle 5B, a through fine tuning window 501B is formed on a side wall of the head of the spindle 5B, a fine tuning long screw 54B is disposed in the spindle screw hole 50B, a first tapered head 542B is disposed at the head of the fine tuning long screw 54B, and a dial rod 541B is disposed at the tail of the fine tuning long screw 54B.

In addition, the cutter assembly 11B includes a pair of elongated tool holders 111A, a guiding semicircular groove 115B is further disposed on an inner wall of the tool holder 111B, a slidable driving bracket 120B is disposed on the guiding semicircular groove 115B, the driving bracket 120B includes a rod-shaped driving polish rod 121B, a sheet-shaped collet 123B is disposed at a head of the driving polish rod 121B, a collet opening 124B is disposed on a front side wall of the collet 123B, a size of the collet opening 124B is adapted to a thickness of the blade 115, a tapered second taper head 122B is disposed at a tail of the driving polish rod 121B, and the second taper head 122B is matched with the first taper head 542B.

The third embodiment of the invention will be explained below

As shown in fig. 24 and 25, during the cutting process of the blade 115, the user can directly use a finger to dial the dial rod 541B, so that the fine adjustment long screw 54B rotates downward, for example, in the direction of F1. The first conical head 542B of the fine adjustment long screw 54B directly presses against the second conical head 122B of the driving polished rod 121B below, so that the driving polished rod 121B translates along the direction F2, and at the same time, the collet 123B of the driving bracket 120B pushes the blade 115 to translate along the direction F2, so that the cutting depth of the blade 115 is increased. When the user feels significantly that the blade 115 encounters a greater resistance, the tap lever 541B may be rotated in the opposite direction, causing the blade 115 to retract a portion.

By utilizing the fine adjustment structure positioned at the tail part of the main rotating shaft 5B, a user can finely adjust the cutting depth of the blade 115 at any time, hands do not need to extend into the pipe body, and the operation is convenient.

Without being limited thereto, any changes or substitutions that are not thought of through the inventive work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A double-wall corrugated pipe cutter with a fine adjustment structure is characterized by comprising the following components:

the handle is rotatably connected with the handle connecting hole;