Double-walled bellows cutter

Abstract

The double-wall corrugated pipe cutter comprises a shell which is cylindrical as a whole and has an enlarged diameter at one end, the inside of the shell is hollow, a crank handle is rotatably installed at one end of the shell, a rotating column is rotatably installed at the other end of the shell, a connecting block is connected to one end of the rotating column, a storage plate is connected to one end of the connecting block, and a cutting knife is slidably arranged in the inside of the storage plate; a driving shaft is rotatably installed at one end of the inside of the shell, the driving shaft is connected with the crank handle, and a connecting column is rotatably installed at the other end of the inside of the shell. When the length of the cutting knife needs to be adjusted during cutting, the worker only needs to press the handle, then hydraulic oil is pushed into the inside of the storage plate under the action of the pushing part and the extruding part, the cutting knife is extruded to move outward, and finally the effect of adjusting the length of the cutting knife is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of double-wall corrugated pipe cutting, in particular to a double-wall corrugated pipe cutter. BACKGROUND

[0002] Double-wall corrugated pipe material is a new type of lightweight pipe material made of high-density polyethylene, which has the characteristics of light weight, high pressure resistance, good toughness, fast construction, long service life, etc. Its excellent pipe wall structure design greatly reduces the cost compared with other structures. And because of the convenience and reliability of connection, it is widely used at home and abroad. A large number of concrete pipes and cast iron pipes are replaced by double-wall corrugated pipes. When installing the double-wall corrugated pipe, a large amount of cutting work is required.

[0003] The prior art can refer to the Chinese authorized invention patent with publication number CN111318753B, which is a double-wall corrugated pipe cutter, which comprises: a pair of positioning clamps; a main support, the main support comprises an annular main sleeve, and three long strip-shaped main horizontal bars are arranged on the side wall of the main sleeve; a main shaft, the main shaft penetrates the main sleeve; a main cylinder seat, the main cylinder seat is arranged at the tail of the main shaft; a return spring, the return spring is arranged on the main cylinder seat; a connecting fork, the connecting fork is arranged on the main cylinder seat and presses the return spring; an annular rotary clasp, the rotary clasp is arranged on the main cylinder seat and presses the connecting fork; a handle, the handle is connected with the main shaft; three detachable extension assemblies, the extension assemblies are arranged between the connecting fork and the main support, and the extension assemblies comprise a long strip-shaped first connecting piece, a rod-shaped second connecting piece, a door-shaped clamping support and a clamping sliding block.

[0004] The above prior art uses the above structure to mainly solve the problem that the cutter is difficult to position and is easy to slip when cutting on the market. However, the above prior art can only adjust the cutter before cutting to insert the cutter head into the inner wall of the pipe or penetrate the pipe, and then rotate the cutter for cutting. The cutter head is relatively laborious to insert, affects the work efficiency, and cannot slowly adjust the length of the cutter during the rotation of the cutter. SUMMARY

[0005] To solve the above problems, the present application provides a double-wall corrugated pipe cutter to solve the problem of the above prior art that the cutter head is relatively laborious to insert, affects the work efficiency, and cannot slowly adjust the length of the cutter during the rotation of the cutter.

[0006] In order to achieve the above object, the double-wall corrugated pipe cutter provided by the application comprises a shell which is cylindrical as a whole and has an enlarged diameter at one end, the inside of the shell is hollow, a crank handle is rotatably installed at one end of the shell, a rotating column is rotatably installed at the other end of the shell, a connecting block is connected to one end of the rotating column, a storage plate is connected to one end of the connecting block, and a cutting knife is slidably arranged in the inside of the storage plate.

[0007] A drive shaft is rotatably installed at one end of the inside of the shell, the drive shaft is connected with the crank handle, a connecting column is rotatably installed at the other end of the inside of the shell, the connecting column is connected with the rotating column, and the drive shaft is connected with the connecting column through a transmission component arranged in the middle part of the shell.

[0008] A first connecting disc and an extrusion unit are rotatably installed at one side of the inside of the shell, the first connecting disc and the extrusion unit are oppositely arranged and have a gap therebetween, one end of the first connecting disc is meshingly connected with the drive shaft, a clamping column is slidably arranged in the inside of the first connecting disc, one end of the clamping column is meshed with one end of the extrusion unit, and the other end of the extrusion unit moves along the axis of the shell when the clamping column is meshed with the extrusion unit.

[0009] One of the two handles arranged at one end of the shell is provided with a pushing component in the inside, the pushing component is connected with the other end of the clamping column, and the pushing component pushes the clamping column to move when one end of the pushing component is pressed.

[0010] The inside of the connecting block is provided with hydraulic oil, a push plate is slidably arranged at one end of the inside of the connecting block, the other end of the connecting block is communicated with the storage plate through a communication port, a piston rod is slidably arranged in the inside of the storage plate, one end of the piston rod is connected with the cutting knife, and one end of the extrusion unit penetrates through the connecting column and the rotating column and is connected with the push plate.

[0011] Further, the transmission component comprises a linkage shaft rotatably installed in the inside of the shell and an internal gear disc fixedly installed on the connecting column, the linkage shaft is parallel to the drive shaft, one end of the linkage shaft and the drive shaft are commonly connected with a synchronous belt, the other end of the linkage shaft is installed with a linkage gear, and the linkage gear is meshingly connected with the internal gear disc.

[0012] One end of the extrusion unit penetrates through the middle part of the internal gear disc.

[0013] Further, the extruding unit comprises a second connecting disc rotatably installed inside the shell, a lead screw connected to one end of the second connecting disc, a nut seat installed on the lead screw, an L-shaped block fixedly installed at the bottom of the nut seat, and a second pushing rod installed at one end of the L-shaped block, the second pushing rod penetrating the internal gear disc and the connecting column and being connected with the pushing plate.

[0014] The second connecting disc is engaged with one end of the clamping column.

[0015] Further, a channel groove is formed in the interior of the first connecting disc, the clamping column is arranged inside the channel groove, a plurality of second sliding grooves are formed in the inner wall of the channel groove, a plurality of protrusions are arranged on the outer wall of the clamping column, and the protrusions are in sliding connection with the second sliding grooves.

[0016] A clamping groove is formed at the other end of the second connecting disc, and a plurality of linkage plates are arranged on the clamping groove and one end of the clamping column.

[0017] Further, the pushing component comprises a handle hingedly connected to the interior of the handle through a hinge shaft, a second hinge block hingedly connected to one end of the handle, a third pushing rod hingedly connected to the bottom of the second hinge block, a first hinge block hingedly connected to the bottom of the third pushing rod, and a first pushing rod hingedly connected to one end of the first hinge block, one end of the first pushing rod being connected with the clamping column through a bearing.

[0018] A torsional spring is arranged on the hinge shaft.

[0019] Further, a plurality of first gear teeth are arranged on the outer wall of the first connecting disc, the first gear teeth are equidistantly distributed along the outer wall of the first connecting disc, a plurality of second gear teeth are arranged on the outer wall of one end of the drive shaft, and the first connecting disc is engaged with the drive shaft through the first gear teeth and the second gear teeth.

[0020] Further, a sealing plate is arranged at one end of the collection plate, the sealing plate seals the communication opening, one end of the sealing plate is rotatably connected with the inner wall of the collection plate, the other end of the sealing plate is connected with a pull rod, one end of the pull rod extends to the outside of the collection plate, and a spring is arranged on the pull rod.

[0021] Further, an adjusting plate is slidably arranged on one side wall of the collection plate, one end of the adjusting plate is connected with the cutting knife.

[0022] Further, one end of the outer wall of the shell is fixedly provided with a fixed sleeve, three fixed blocks are arranged on the fixed sleeve, a first sliding groove is arranged in the fixed block, a sliding block is slidably arranged in the first sliding groove, a third connecting rod is connected to the top of the sliding block, an arc-shaped plate is arranged at one end of the third connecting rod, and a plurality of reinforcing nails are arranged on one side of the arc-shaped plate.

[0023] An adjusting component for adjusting the height of the sliding block is arranged on the outer wall of the shell.

[0024] The adjusting component comprises a pushing disc slidably arranged on the outer wall of the shell, three first connecting rods fixedly arranged on the outer wall of the pushing disc, and a second connecting rod hingedly arranged at one end of the first connecting rod, and one end of the second connecting rod is hingedly connected to the sliding block.

[0025] A moving disc is threadedly connected to the outer wall of the shell, and the moving disc is located at one end of the pushing disc and connected to the pushing disc through a bearing.

[0026] Compared with the prior art, the beneficial effects of the present application are as follows:

[0027] I. When the length of the cutting knife needs to be adjusted during cutting, the worker only needs to press the handle, and then the hydraulic oil is pushed into the storage plate under the action of the pushing component and the extruding component, the cutting knife is extruded to move outward, and finally the length of the cutting knife is adjusted.

[0028] II. The linkage gear and the internal gear plate can increase the torque, thereby achieving the effect of assisting the cutting of the pipe.

[0029] III. The sealing plate can seal the communication port, when the hydraulic oil is extruded, the hydraulic oil opens the sealing plate, the sealing plate is activated, and then the hydraulic oil enters the inside of the storage plate, when the worker releases the handle, the sealing plate is reset to seal the communication port, preventing the backflow of hydraulic oil, and facilitating the positioning of the cutting knife.

[0030] IV. The arc-shaped plate can clamp the outer wall of the pipe, and the reinforcing nails can reinforce the connection effect. The pushing disc can move forward and backward under the action of the threads, thereby driving the moving disc to move. The forward movement of the moving disc can drive the sliding block to move upward through the second connecting rod, and the backward movement can drive the sliding block to move downward, thereby driving the arc-shaped plate to expand or contract, facilitating the clamping of the pipe.

[0031] In order to better understand and implement, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1is the first stereogram of the present application;

[0033] Figure 2 is the second stereogram of the present application;

[0034] Figure 3 is the third stereogram of the present application;

[0035] Figure 4 is the plan view of the present application;

[0036] Figure 5 is the internal structure diagram of the housing in the present application;

[0037] Figure 6 is the partial structure diagram of the present application;

[0038] Figure 7 is the internal structure diagram of the handle in the present application;

[0039] Figure 8 is the enlarged diagram of the appendix A in the present application; Figure 5

[0040] Figure 9 is the connection diagram of the driving shaft and the linkage shaft in the present application;

[0041] Figure 10 is the connection diagram of the linkage gear and the internal gear disc in the present application;

[0042] Figure 11 is the internal structure diagram of the connecting block and the storage plate in the present application;

[0043] Figure 12 is the enlarged diagram of the appendix B in the present application; Figure 11

[0044] Figure 13 is the sectional view of the first connecting disc and the second connecting disc in the present application.

[0045] ​​In the figure: 1, the shell; 2, the crank; 3, the handle; 4, the moving disc; 5, the advancing disc; 6, the first connecting rod; 7, the second connecting rod; 8, the fixed sleeve; 9, the fixed block; 10, the third connecting rod; 11, the arc plate; 12, the rotating column; 13, the connecting block; 14, the storage plate; 15, the cutting knife; 16, the reinforcing nail; 17, the first sliding groove; 18, the sliding block; 19, the driving shaft; 20, the linkage shaft; 21, the synchronous belt; 22, the first advancing rod; 23, the lead screw; 24, the second advancing rod; 25, the inner gear disc; 26, the connecting column; 27, the first hinged block; 28, the second hinged block; 29, the hinge shaft; 30, the third advancing rod; 31, the first connecting disc; 32, the clamping column; 33, the second connecting disc; 34, the nut seat; 35, the L-shaped block; 36, the first gear tooth; 37, the second gear tooth; 38, the linkage gear; 39, the spring; 40, the push plate; 41, the piston rod; 42, the adjusting plate; 43, the communication port; 44, the plugging plate; 45, the pull rod; 46, the protruding block; 47, the channel groove; 48, the second sliding groove; 49, the linkage plate. DETAILED DESCRIPTION

[0046] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described with reference to the accompanying drawings, but the protection scope of the present application is not limited to the following description.

[0047] Reference Figures 1-13 As shown in the figure, the double-wall corrugated pipe cutter comprises a shell 1, the shell 1 is cylindrical as a whole and has an enlarged diameter at one end, the inside of the shell 1 is hollow, a crank 2 is rotatably installed at one end of the shell 1, a rotating column 12 is rotatably installed at the other end of the shell 1, a connecting block 13 is connected to one end of the rotating column 12, and a storage plate 14 is connected to one end of the connecting block 13, a cutting knife 15 is slidably arranged in the inside of the storage plate 14;

[0048] A driving shaft 19 is rotatably installed at one end of the inside of the shell 1, the driving shaft 19 is connected to the crank 2, a connecting column 26 is rotatably installed at the other end of the inside of the shell 1, the connecting column 26 is connected to the rotating column 12, and the driving shaft 19 is connected to the connecting column 26 through a transmission component arranged in the middle of the inside of the shell 1;

[0049] A first connecting disc 31 and a pressing unit are rotatably installed at one side of the inside of the shell 1, the first connecting disc 31 and the pressing unit are oppositely arranged and have a gap therebetween, one end of the first connecting disc 31 is meshingly connected to the driving shaft 19, a clamping column 32 is slidably arranged in the inside of the first connecting disc 31, one end of the clamping column 32 is meshingly connected to one end of the pressing unit, and the other end of the pressing unit moves along the axis of the shell 1 when the clamping column 32 is meshingly connected to the pressing unit;

[0050] The shell 1 is provided with two handles 3 at one end, and the inside of one handle 3 is provided with a pushing component connected with the other end of the clamping column 32, which is pushed to move when the one end of the pushing component is pressed;

[0051] The inside of the connecting block 13 is provided with hydraulic oil, the inside of one end of the connecting block 13 is slidingly provided with a push plate 40, the other end of the connecting block 13 is communicated with the storage plate 14 through a communication port 43, the inside of the storage plate 14 is slidingly provided with a piston rod 41, one end of the piston rod 41 is connected with the cutting knife 15, and one end of the extrusion unit penetrates through the connecting column 26 and the rotating column 12 and is connected with the push plate 40;

[0052] The extrusion unit comprises a second connecting disc 33 rotatably installed in the shell 1, a lead screw 23 connected to one end of the second connecting disc 33, a nut seat 34 installed on the lead screw 23, an L-shaped block 35 fixedly installed at the bottom of the nut seat 34, and a second pushing rod 24 installed at one end of the L-shaped block 35, the second pushing rod 24 penetrates through the internal gear disc 25 and the connecting column 26 and is connected with the push plate 40; the second connecting disc 33 is engaged with one end of the clamping column 32.

[0053] The inside of the first connecting disc 31 is provided with a channel groove 47, the clamping column 32 is arranged in the inside of the channel groove 47, a plurality of second sliding grooves 48 are arranged on the inner wall of the channel groove 47, a plurality of protrusions 46 are arranged on the outer wall of the clamping column 32, and the protrusions 46 are slidingly connected with the second sliding grooves 48; the other end of the second connecting disc 33 is provided with a clamping groove, and a plurality of linkage plates 49 are arranged on the clamping groove and one end of the clamping column 32.

[0054] When in use, the worker rotates the crank 2, drives the rotating column 12 and the cutting knife 15 to rotate through the crank 2, and cuts the double-wall corrugated pipe through the cutting knife 15. When the crank 2 rotates, the driving shaft 19 is driven to rotate, and the cutting knife 15 is driven to rotate through the driving shaft 19 and the transmission component. When the length of the cutting knife 15 needs to be adjusted during cutting, the worker can press one end of the pushing component inward, moves the other end of the pushing component, drives the clamping column 32 to move to the inside of the second connecting disc 33, makes the clamping column 32 engage with the second connecting disc 33 through the linkage plates 49, drives the second connecting disc 33 to rotate through the first connecting disc 31, drives the lead screw 23 to rotate, drives the nut seat 34 and the second pushing rod 24 to move through the lead screw 23, drives the push plate 40 to move through the second pushing rod 24, delivers the hydraulic oil to the inside of the storage plate 14, drives the piston rod 41 to move through extrusion, drives the cutting knife 15 to move outward, adjusts the length of the cutting knife 15, and thus the effect of adjusting the length of the cutting knife 15 during cutting is realized, the cutting is facilitated, and the cutting efficiency is improved. When the nut seat 34 needs to be reset, the crank 4 is reversely rotated.

[0055] Preferably, the transmission component comprises a linkage shaft 20 rotatably installed inside the shell 1, an internally toothed gear plate 25 fixedly installed on the connecting column 26, the linkage shaft 20 is parallel to the driving shaft 19, the linkage shaft 20 and the driving shaft 19 are jointly connected by a synchronous belt 21 at one end of the linkage shaft 20, the other end of the linkage shaft 20 is installed with a linkage gear 38, the linkage gear 38 is in meshing connection with the internally toothed gear plate 25; one end of the extrusion unit penetrates through the middle part of the internally toothed gear plate 25.

[0056] Specifically, the linkage gear 38 and the internally toothed gear plate 25 can increase the torque, thereby achieving the assisting effect and facilitating the cutting of the pipe.

[0057] Preferably, the pushing component comprises a handle hingedly connected to the inside of the handle 3 through a hinge shaft 29, a second hinge block 28 hingedly connected to one end of the handle, a third pushing rod 30 hingedly connected to the bottom of the second hinge block 28, a first hinge block 27 hingedly connected to the bottom of the third pushing rod 30, and a first pushing rod 22 hingedly connected to one end of the first hinge block 27, one end of the first pushing rod 22 is connected to the clamping column 32 through a bearing.

[0058] The hinge shaft 29 is provided with a torsional spring.

[0059] Specifically, the staff presses the handle to move one end of the handle downward, thereby driving the second hinge block 28 and the third pushing rod 30 to move, and then driving the first pushing rod 22 to move forward and backward through the first hinge block 27, thereby pushing the clamping column 32 into the inside of the second connecting disc 33, facilitating the length adjustment effect of the subsequent cutting knife 15. After releasing the handle, the torsional spring can drive the handle and the clamping column 32 to reset, so that the cutting knife 15 stops extending.

[0060] Preferably, a plurality of first teeth 36 are arranged on the outer wall of the first connecting disc 31, the plurality of first teeth 36 are distributed at equal intervals along the outer wall of the first connecting disc 31, a plurality of second teeth 37 are arranged on the outer wall of one end of the driving shaft 19, and the first connecting disc 31 is in meshing connection with the driving shaft 19 through the first teeth 36 and the second teeth 37.

[0061] Specifically, the first teeth 36 and the second teeth 37 facilitate the driving shaft 19 to drive the first connecting disc 31 to rotate.

[0062] Preferably, the storage plate 14 is provided with a blocking plate 44 at one end, the blocking plate 44 blocks the communication port 43, one end of the blocking plate 44 is rotatably connected to the inner wall of the storage plate 14, the other end of the blocking plate 44 is connected with a pull rod 45, one end of the pull rod 45 extends to the outside of the storage plate 14, and the pull rod 45 is provided with a spring 39; the adjusting plate 42 is slidably arranged on one side wall of the storage plate 14, and one end of the adjusting plate 42 is connected with the cutting knife 15.

[0063] Specific, by setting the sealing plate 44 can be sealed to the communication port 43, when the extrusion hydraulic oil, hydraulic oil seal sealing plate 44, when the sealing plate 44 activated, and then the hydraulic oil into the collection plate 14 inside, when the staff loose handle, sealing plate 44 reset, sealed to the communication port 43, prevent backflow of hydraulic oil, facilitate the position of the cutting knife 15 positioning. When the need for cutting knife 15 reset, by pulling out the setting of the lever 45 can drive sealing plate 44 to move, so that the hydraulic oil can be reset to the inside of the connecting block 13, then by adjusting the plate 42 push back cutting knife 15 reset.

[0064] Preferably: the outer wall of one end of the shell 1 is fixedly provided with a fixed sleeve 8, the fixed sleeve 8 is provided with three fixed blocks 9, the inside of the fixed block 9 is provided with a first sliding groove 17, the inside of the first sliding groove 17 is slidably provided with a sliding block 18, the top of the sliding block 18 is connected with a third connecting rod 10, one end of the third connecting rod 10 is provided with an arc plate 11, one side of the arc plate 11 is provided with a plurality of reinforcing nails 16; the outer wall of the shell 1 is provided with an adjusting component for adjusting the height of the sliding block 18;

[0065] The adjusting component comprises a sliding push disc 5 provided on the outer wall of the shell 1, three first connecting rods 6 fixedly provided on the outer wall of the push disc 5, a second connecting rod 7 hingedly connected to one end of the first connecting rod 6, and the other end of the second connecting rod 7 is hingedly connected to the sliding block 18; the outer wall of the shell 1 is threadedly connected with a moving disc 4, and the moving disc 4 is located at one end of the push disc 5 and connected with the push disc 5 through a bearing.

[0066] Specifically, the arc plate 11 can clamp the outer wall of the pipeline, and the reinforcing nails 16 can reinforce the connection effect. Rotating the push disc 5 can move forward and backward under the action of the thread, thereby driving the moving disc 4 to move. The forward movement of the moving disc 4 can drive the sliding block 18 to move upward through the second connecting rod 10, and the backward movement can drive the sliding block 18 to move downward, thereby driving the arc plate 11 to expand or contract, facilitating clamping the pipeline.

[0067] The above disclosure is only a preferred embodiment of the present application, and of course cannot limit the scope of the present application, so the equivalent changes made by the claims of the present application still belong to the scope covered by the present application.

Claims

1. A double-wall bellows cutter comprising: The shell (1) is cylindrical as a whole and expands in diameter at one end, the inside of the shell (1) is hollow, a crank (2) is rotatably installed at one end of the shell (1), characterized in that a rotating column (12) is rotatably installed at the other end of the shell (1), a connecting block (13) is connected to one end of the rotating column (12), a storage plate (14) is connected to one end of the connecting block (13), and a cutting knife (15) is slidably arranged in the inside of the storage plate (14). A drive shaft (19) is rotatably installed at one end of the inside of the shell (1), the drive shaft (19) is connected with the crank (2), a connecting column (26) is rotatably installed at the other end of the inside of the shell (1), the connecting column (26) is connected with the rotating column (12), and the drive shaft (19) is connected with the connecting column (26) through a transmission component arranged in the middle of the inside of the shell (1). A first connecting disc (31) and an extrusion unit are rotatably installed at one side of the inside of the shell (1), the first connecting disc (31) and the extrusion unit are oppositely arranged and leave a gap therebetween, one end of the first connecting disc (31) is meshingly connected with the drive shaft (19), a clamping column (32) is slidably arranged in the inside of the first connecting disc (31), one end of the clamping column (32) is meshingly connected with one end of the extrusion unit, and the other end of the extrusion unit moves along the axis of the shell (1) after the clamping column (32) is meshingly connected with the extrusion unit. Two handles (3) are arranged at one end of the shell (1), a propelling component is arranged in the inside of one of the handles (3), the propelling component is connected with the other end of the clamping column (32), and the propelling component pushes the clamping column (32) to move when one end of the propelling component is pressed. Hydraulic oil is arranged in the inside of the connecting block (13), a push plate (40) is slidably arranged at one end of the inside of the connecting block (13), the other end of the connecting block (13) is communicated with the storage plate (14) through a communication port (43), a piston rod (41) is slidably arranged in the inside of the storage plate (14), one end of the piston rod (41) is connected with the cutting knife (15), and one end of the extrusion unit penetrates through the connecting column (26) and the rotating column (12) and is connected with the push plate (40).

2. The double wall corrugated pipe cutter of claim 1, wherein: The transmission component comprises a linkage shaft (20) rotatably installed in the inside of the shell (1) and an internal gear disc (25) fixedly installed on the connecting column (26), the linkage shaft (20) is parallel with the drive shaft (19), one end of the linkage shaft (20) and the drive shaft (19) are commonly connected with a synchronous belt (21), the other end of the linkage shaft (20) is installed with a linkage gear (38), and the linkage gear (38) is meshingly connected with the internal gear disc (25). One end of the extrusion unit penetrates through the middle of the internal gear disc (25).

3. The double wall corrugated pipe cutter of claim 2, wherein: The extrusion unit comprises a second connecting disc (33) rotatably installed inside the shell (1), a lead screw (23) connected to one end of the second connecting disc (33), a nut seat (34) installed on the lead screw (23), an L-shaped block (35) fixedly installed at the bottom of the nut seat (34), and a second pushing rod (24) installed at one end of the L-shaped block (35), wherein the second pushing rod (24) penetrates through the internal gear disc (25) and the connecting column (26) and is connected with the push plate (40). The second connecting disc (33) is engaged with one end of the clamping column (32).

4. The double wall corrugated pipe cutter of claim 3, wherein: The first connecting disc (31) is internally provided with a channel groove (47), the clamping column (32) is arranged inside the channel groove (47), the inner wall of the channel groove (47) is provided with a plurality of second sliding grooves (48), and the outer wall of the clamping column (32) is provided with a plurality of protrusions (46), which are in sliding connection with the second sliding grooves (48). The other end of the second connecting disc (33) is provided with a clamping groove, and the clamping groove and one end of the clamping column (32) are both provided with a plurality of linkage plates (49).

5. The double wall corrugated pipe cutter of claim 1, wherein: The pushing component comprises a handle hingedly connected to the inside of the handle (3) through a hinge shaft (29), a second hinge block (28) hingedly connected to one end of the handle, a third pushing rod (30) hingedly connected to the bottom of the second hinge block (28), a first hinge block (27) hingedly connected to the bottom of the third pushing rod (30), and a first pushing rod (22) hingedly connected to one end of the first hinge block (27), wherein one end of the first pushing rod (22) is connected with the clamping column (32) through a bearing. The hinge shaft (29) is provided with a torsional spring.

6. The double wall corrugated pipe cutter of claim 1, wherein: The outer wall of the first connecting disc (31) is provided with a plurality of first gear teeth (36), a plurality of the first gear teeth (36) are distributed at equal intervals along the outer wall of the first connecting disc (31), the outer wall of one end of the drive shaft (19) is provided with a plurality of second gear teeth (37), and the first connecting disc (31) is engaged with the drive shaft (19) through the first gear teeth (36) and the second gear teeth (37).

7. The double wall corrugated pipe cutter of claim 1, wherein: One end of the collection plate (14) is provided with a blocking plate (44), the blocking plate (44) blocks the communication port (43), one end of the blocking plate (44) is rotatably connected with the inner wall of the collection plate (14), the other end of the blocking plate (44) is connected with a pull rod (45), one end of the pull rod (45) extends to the outside of the collection plate (14), and the pull rod (45) is provided with a spring (39).

8. The double wall corrugated pipe cutter of claim 1, wherein: One side wall of the collection plate (14) is slidably provided with an adjusting plate (42), one end of the adjusting plate (42) is connected with the cutting knife (15).

9. The double wall corrugated pipe cutter of claim 1, wherein: One end outer wall of the shell (1) is fixedly provided with a fixed sleeve (8), three fixed blocks (9) are arranged on the fixed sleeve (8), a first sliding groove (17) is arranged in the fixed block (9), a sliding block (18) is slidably arranged in the first sliding groove (17), a third connecting rod (10) is connected to the top of the sliding block (18), an arc-shaped plate (11) is mounted on one end of the third connecting rod (10), and a plurality of reinforcing nails (16) are arranged on one side of the arc-shaped plate (11). An adjusting component is arranged on the outer wall of the shell (1) to adjust the height of the sliding block (18).

10. The double wall corrugated pipe cutter of claim 9, wherein: The adjusting component comprises a sliding push disc (5) arranged on the outer wall of the shell (1), three first connecting rods (6) fixedly arranged on the outer wall of the push disc (5), and a second connecting rod (7) hingedly connected to one end of the first connecting rod (6), one end of the second connecting rod (7) being hingedly connected to the sliding block (18). A moving disc (4) is threadedly connected to the outer wall of the shell (1), the moving disc (4) being located at one end of the push disc (5) and being connected to the push disc (5) through a bearing.

Images