CN213591918U - Pipeline cutting device for hydraulic engineering - Google Patents

Abstract

The utility model relates to a hydraulic engineering equipment technical field, more specifically say, relate to a pipeline cutting device for hydraulic engineering. The method comprises the following steps: shell, visor, worm, compound worm wheel, press from both sides tight tooth, rotor arm, extension spring, motor, saw bit, a circular shape poling hole has on the shell, the shell internal rotation is connected with press from both sides tight tooth, it has first external tooth to press from both sides tight tooth, the shell is inside to have compound worm wheel, the internal face of compound worm wheel has first internal tooth, first internal tooth with first external tooth meshing, have in the shell the worm, the outside of compound worm wheel has the second external tooth, the second external tooth with the worm meshing, the shell outside with the coaxial articulated rotor arm in poling hole, sliding connection has on the rotor arm the motor, the motor with there is extension spring between the rotor arm, have on the motor spindle the saw bit. The device can be used for regularly cutting or circularly cutting the pipeline.

Description

Pipeline cutting device for hydraulic engineering

Technical Field

The utility model relates to a hydraulic engineering equipment technical field, more specifically say, relate to a pipeline cutting device for hydraulic engineering.

Background

In the water conservancy work progress, original pipeline is probably longer, in order to carry out the butt joint of pipeline smoothly, the event needs carry out the cutting of pipeline, change the length of pipeline, in current pipeline cutting process, for convenience, use the electric saw to begin the cutting from a tangential direction of pipeline mostly, and get into along a radial direction of pipeline, the cutting cross-section that produces like this has the line that is parallel to each other, also can be simultaneously because the reason of cutting in the angle, the slope can take place for the cross-section, thereby influence the butt joint effect among the pipeline butt joint process, can produce the small gap, cause the condition such as the identical effect difference of water leakage and pipeline interface.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of pipeline cutting device for hydraulic engineering for the section is more neat in the pipeline cutting process.

In order to achieve the above object, an aspect of the present invention provides a pipe cutting apparatus for hydraulic engineering, including: the composite worm gear comprises a shell, a protective cover, a worm, a composite worm gear, clamping teeth, a rotating arm, an extension spring, a motor and a saw blade, wherein a circular pipe penetrating hole is formed in the shell, the clamping teeth are uniformly distributed in the circumferential direction around the pipe penetrating hole in the shell, the clamping teeth are rotatably connected with the shell, first outer teeth are uniformly distributed in the circumferential direction of a rotary connecting position of the clamping teeth, one composite worm gear is arranged around the pipe penetrating hole in the shell, the diameter of a central through hole of the composite worm gear is larger than that of the pipe penetrating hole, first inner teeth are arranged on the inner wall surface of the composite worm gear, the first inner teeth are simultaneously meshed with the first outer teeth of the clamping teeth, the clamping teeth can rotate by rotating the composite worm gear, the worm is rotatably connected in the shell, and second outer teeth are arranged on the outer side of the composite worm gear, the second external teeth are gear teeth of a worm, the second external teeth are meshed with the worm, the protective cover is arranged on the shell and used for protecting the worm, the compound worm wheel and the clamping teeth, the outer portion of the shell is coaxially hinged with the pipe penetrating hole and connected with the rotating arm, the rotating arm can rotate, the motor is connected onto the rotating arm in a sliding mode, an extension spring is arranged between the motor and the hinged position of the rotating arm, and the main shaft of the motor is connected with the saw blade.

The utility model provides a pair of pipeline cutting device for hydraulic engineering, simple structure, convenient to use can fix on the pipeline of any diameter, has reduced the tired of the handheld electric saw of people, and simultaneously in cutting process, the user can cut into from the direction of any needs as required for the cross-section is more neat, and this device is injectd with the relative position of pipeline simultaneously, makes the cross-section that this device surely goes out can not take place the slope, and whole cutting effect is better. Meanwhile, the device can also carry out orderly annular groove cutting by controlling the cutting depth according to the requirement.

Additionally, the utility model provides an above-mentioned technical scheme provides a pipeline cutting device for hydraulic engineering still has following technical characteristic:

as an optimized scheme of the utility model, the tip of worm has the hexagonal prism, the hexagonal prism stretches out the shell is conveniently gone on the rotation of worm.

As an optimized scheme of the utility model, the quantity more than or equal to of the tight tooth of clamp is three, makes the clamp of the tight tooth of clamp has stability.

As a preferred scheme of the utility model, the length of pressing from both sides tight tooth is greater than wear the half of hole diameter, promoted the suitability of device to the pipeline diameter.

As the utility model discloses a preferred scheme, press from both sides tight tooth and the contact surface of the tight pipeline of needs clamp for line contact, reduced and pressed from both sides rocking of tight pipeline.

As an optimized scheme of the utility model, the side of rotor arm has the pinhole, can insert the pin in the pinhole, can be right the removal of motor is carried on spacingly.

As a preferred scheme of the utility model, be in on the motor have the backplate around the saw bit, played the guard action to the user.

Compared with the prior art, the beneficial effects of the utility model reside in that:

according to the device of this application, compare with the mode that the pipeline cutting was carried out to the handheld electric saw of present people, because this device is direct to be connected with the pipeline, so have better stability, reduced the possibility of mistake cutting, can begin the cutting from any direction of pipeline as required in the cutting process, make the incision more neat, also can avoid the slope at cutting process terminal surface moreover, be favorable to carrying out the butt joint of follow-up pipeline, promoted the effect of butt joint.

Drawings

Fig. 1 is a schematic view of a first structure of the present invention;

fig. 2 is a second schematic structural view of the present invention;

fig. 3 is a schematic view of a third structure of the present invention;

fig. 4 is a fourth schematic structural diagram of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

the mechanical hand tool comprises a shell 1, a perforated pipe 101, a hinged plate 102, a protective cover 2, a worm 3, a hexagonal prism 301, a compound worm wheel 4, first internal teeth 401, second external teeth 402, clamping teeth 5, first external teeth 501, a rotating arm 6, a slideway 601, a pin hole 602, an extension spring 7, a motor 8, a saw blade 9 and a guard plate 901.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A pipe cutting apparatus for hydraulic engineering according to some embodiments of the present invention will be described below with reference to fig. 1 to 4.

As shown in fig. 1-4, according to the utility model discloses a pipeline cutting device for hydraulic engineering that some embodiments provided includes: the device comprises a shell 1, a protective cover 2, a worm 3, a compound worm wheel 4, clamping teeth 5, a rotating arm 6, an extension spring 7, a motor 8 and a saw blade 9, wherein the shell 1 is a square shell, a circular pipe penetrating hole 101 is formed in the shell 1, the shell 1 is communicated with the pipe penetrating hole 101, eight clamping teeth 5 are uniformly distributed around the pipe penetrating hole 101 in the shell 1 in the circumferential direction, the main body of each clamping tooth 5 is a square plate body, the end part of each clamping tooth 5 is provided with an arc, the length of each clamping tooth 5 is greater than one half of the diameter of the pipe penetrating hole 101, the applicability of the device to the diameter of a pipeline is improved, the clamping teeth 5 are in line contact with the contact surface of the pipeline to be clamped, the shaking of the clamped pipeline is reduced, the root parts of the clamping teeth 5 are rotatably connected with the shell 1 and can rotate relatively, first outer teeth 501 are uniformly distributed in the circumferential direction at the rotary connection positions, a compound worm wheel 4 is arranged around a pipe penetrating hole 101 in the shell 1, the diameter of a central through hole of the compound worm wheel 4 is larger than that of the pipe penetrating hole 101, so that the pipe penetrating hole 101 cannot be shielded, the inner wall surface of the compound worm wheel 4 is provided with first inner teeth 401, the first inner teeth 401 are gear teeth, the first inner teeth 401 are meshed with first outer teeth 501 of clamping teeth 5 simultaneously, the clamping teeth 5 can rotate to realize clamping work by rotating the compound worm wheel 4, a worm 3 is rotatably connected in the shell 1, the axis of the worm 3 is crossed with the axis space of the compound worm wheel 4, the outer side of the compound worm wheel 4 is provided with second outer teeth 402, the second outer teeth 402 are worm teeth, the second outer teeth 402 are meshed with the worm 3, the compound worm wheel 4 can rotate by rotating the worm 3, the end part of the worm 3 is provided with a hexagonal prism 301, the hexagonal prism 301 extends out of the shell 1, and the rotation of the worm 3, the shell 1 is provided with a protective cover 2, the protective cover 2 protects a worm 3, a compound worm wheel 4 and clamping teeth 5, the influence of foreign matters on normal use can be avoided, and meanwhile, damage to a user in the use process can be avoided, the outer part of the shell 1 is provided with an annular hinged plate 102 around the same axis with the pipe penetrating hole 101, the outer side of the hinged plate 102 is hinged with a rotating arm 6, the rotating arm 6 can rotate freely, the rotating arm 6 is a square frame, the inner side of the rotating arm 6 is provided with a slide way 601, a motor 8 is connected in the slide way 601 in a sliding way, the motor 8 can move in the slide way 601, a stretching spring 7 is arranged between the hinged positions of the motor 8 and the rotating arm 6, the motor 8 always tends to move through the pipe penetrating hole, the side surface of the rotating arm 6 is provided with a pin hole 602 through which a pin can be inserted, the movement of the motor 8 is limited, the motor 8 drives the saw blade 9 to rotate, and the guard plate 901 is arranged on the motor 8 around the saw blade 9, so that the protection effect on a user is achieved.

The using method comprises the following steps: during the use, the pipeline that will cut passes through perforation hole 101 to remove this device and need carry out the position of cutting, rotate hexagonal prism 301 through external force and make worm 3 rotate, drive compound worm wheel 4 then and rotate, compound worm wheel 4's rotation will make and press from both sides tight tooth 5 and rotate, press from both sides tight tooth 5 and contact with waiting to cut the pipeline, thereby realized the fixed of this device. To outside pulling motor 8, starter motor 8 drives saw bit 9 and rotates, holds in hand and grasps rotor arm 6, and motor 8 can be close to the pipeline under extension spring 7's effect, and saw bit 9 can realize the cutting with the pipeline contact, can change the position of cutting wantonly through rotating rotor arm 6 to realize the multi-angle cutting of pipeline. In addition, the movement position of the motor 8 can be limited by inserting a pin into the pin hole 602, and the cutting of the annular groove on the outer side of the pipeline can be realized in combination with the rotation of the rotating arm 6.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance: the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the present invention, the terms "upper", "lower", "left", "right", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a pipeline cutting device for hydraulic engineering which characterized in that includes: the composite worm gear comprises a shell, a protective cover, a worm, a composite worm gear, clamping teeth, a rotating arm, an extension spring, a motor and a saw blade, wherein a circular pipe penetrating hole is formed in the shell, the clamping teeth are uniformly distributed in the periphery of the pipe penetrating hole in the shell in the circumferential direction, the clamping teeth are rotatably connected with the shell, first external teeth are uniformly distributed in the circumferential direction of the rotating connection position of the clamping teeth, one composite worm gear is arranged around the pipe penetrating hole in the shell, the diameter of a central through hole of the composite worm gear is larger than that of the pipe penetrating hole, first internal teeth are arranged on the inner wall surface of the composite worm gear, the first internal teeth are simultaneously meshed with the first external teeth of each clamping tooth, the worm is rotatably connected in the shell, second external teeth are arranged on the outer side of the composite worm gear, the second external teeth are worm gear teeth, and the second external teeth are meshed with, the protective cover is arranged on the shell and protects the worm, the compound worm wheel and the clamping teeth, the outer portion of the shell is coaxially hinged with the pipe penetrating hole and is connected with the rotating arm, the rotating arm can rotate, the motor is connected to the rotating arm in a sliding mode, an extension spring is arranged between the motor and the hinged position of the rotating arm, and the motor spindle is connected with the saw blade.

2. The pipe cutting device for hydraulic engineering according to claim 1, characterized in that: the end of the worm has a hexagonal prism that protrudes out of the housing.

3. The pipe cutting device for hydraulic engineering according to claim 1, characterized in that: the number of the clamping teeth is more than or equal to three.

4. The pipe cutting device for hydraulic engineering according to claim 1, characterized in that: the length of the clamping teeth is larger than one half of the diameter of the pipe penetrating hole.

5. The pipe cutting device for hydraulic engineering according to claim 1, characterized in that: the contact surface of the clamping tooth and the pipeline to be clamped is in line contact.

6. The pipe cutting device for hydraulic engineering according to claim 1, characterized in that: the side of the rotating arm is provided with a pin hole.

7. The pipe cutting device for hydraulic engineering according to claim 1, characterized in that: the motor has a guard plate around the blade.

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