CN220697861U

CN220697861U - Pipeline broaching device

Info

Publication number: CN220697861U
Application number: CN202322401542.7U
Authority: CN
Inventors: 陈克俭; 钟石和
Original assignee: Beijing Dingjiafeng Dairy Drinks Machinery Co ltd
Current assignee: Beijing Dingjiafeng Dairy Drinks Machinery Co ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-04-02
Anticipated expiration: 2033-09-05

Abstract

The utility model relates to a pipeline broaching device which comprises a base, a hydraulic cylinder and an internal grinding tool, wherein a driving screw rod is connected in the hydraulic cylinder and is driven by the hydraulic cylinder to stretch and retract; an operation channel and a pressure welding channel for a pipeline to pass through are formed in the base, the operation channel is vertically arranged with the pressure welding channel, the pressure welding channel penetrates through the end faces of the two ends of the base, one end of the operation channel penetrates through the end face of one end of the base, and the other end of the operation channel is communicated with the middle part of the pressure welding channel; the inner grinder is in threaded connection with the free end of the driving screw, and the end face of the inner grinder, facing the hydraulic cylinder, is an annular broaching end face. When the pipeline pressing device is used, the through hole can be formed in the pipeline, then the pipeline is placed in the pressing channel to be pressed and fixed, the through hole on the pipeline is opposite to the operation channel, the driving screw rod extends into the through hole and is connected with the inner grinding tool, the driving screw rod is driven by the hydraulic oil cylinder to drive the inner grinding tool to move, the inner grinding tool is abutted to the periphery of the inner side wall of the through hole, and the pipeline can be formed by one-time hole pulling.

Description

Pipeline broaching device

Technical Field

The utility model relates to the technical field related to pipeline forming, in particular to a pipeline broaching device.

Background

The tee joint commonly used on the pipeline is formed integrally without a method, and the pipelines on two sides which are connected are required to be welded. The tee joint or other pipelines manufactured by adopting the welded pipelines have low structural strength and complex process, and the appearance is not attractive due to the existence of welding seams.

Disclosure of Invention

The utility model provides a pipeline hole puller for solving one or more of the technical problems in the prior art.

The technical scheme for solving the technical problems is as follows: the pipeline broaching device comprises a base, a hydraulic cylinder and an internal grinding tool, wherein a driving screw rod is connected in the hydraulic cylinder and driven by the hydraulic cylinder to stretch and retract; an operation channel and a pressure welding channel for a pipeline to pass through are formed in the base, the operation channel is vertically arranged with the pressure welding channel, the pressure welding channel penetrates through the end faces of the two ends of the base, one end of the operation channel penetrates through the end face of one end of the base, and the other end of the operation channel is communicated with the middle part of the pressure welding channel; the inner grinding tool is in threaded connection with the free end of the driving screw, and the end face of the inner grinding tool, facing the hydraulic oil cylinder, is an annular broaching end face.

The beneficial effects of the utility model are as follows: when the pipeline broaching device is used, a through hole can be formed in a pipeline, then the pipeline is placed in a compression joint channel to be compressed and fixed, the through hole on the pipeline is opposite to an operation channel, a driving screw rod extends into the through hole and is connected with an inner grinding tool, the driving screw rod is driven by a hydraulic cylinder to drive the inner grinding tool to move, the annular broaching end face of the inner grinding tool is abutted to the periphery of the inner side wall of the through hole and is stretched, the pipeline can be broached and molded once, multi-angle broaching can be realized, the sealing performance of the pipeline is better, the step of middle welding can be omitted, the risk point is reduced, and the cost is saved.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the outer diameter of the inner grinder is smaller than the inner diameter of the working channel.

The beneficial effects of adopting the further scheme are as follows: the inner grinder can conveniently enter and exit the operation channel.

Further, the peripheral side wall of the inner grinding tool is in a conical structure.

The beneficial effects of adopting the further scheme are as follows: the inner grinding tool with the conical structure is small in structure and easy to enter and exit the operation channel.

Further, the base includes upper base and lower base, upper base and lower base detachable connection.

The beneficial effects of adopting the further scheme are as follows: the pipeline is conveniently pressed between the upper base and the lower base.

Further, the upper base is provided with a first pressing groove and the operation channel, the lower base is provided with a second pressing groove, and the first pressing groove and the second pressing groove are surrounded to form the pressing channel.

Further, a threaded through hole is formed in the upper base, a threaded blind hole is formed in the lower base, and the threaded through hole is in butt joint with the threaded blind hole and fixedly connected with the threaded blind hole through a bolt.

The beneficial effects of adopting the further scheme are as follows: the upper base and the lower base can be stably connected together by using the threaded through holes and the threaded blind holes.

Further, a plurality of threaded through holes are formed in the position, close to the periphery, of the upper base, a plurality of threaded blind holes are formed in the position, close to the periphery, of the lower base, and the threaded through holes and the threaded blind holes are arranged in one-to-one correspondence and are fixedly connected through bolts respectively.

Further, the operating channel and the crimping channel are both cylindrical structures.

Further, the hydraulic cylinder comprises a cylinder barrel, a spring and a piston, one end of the spring is fixed on the inner side wall of one axial end of the cylinder barrel, the piston is movably arranged in the cylinder barrel in a sealing manner and can move along the axial direction of the cylinder barrel, the other end of the spring is connected with the piston, an oil inlet channel is formed in the side wall of the cylinder barrel, and the oil inlet channel is communicated with one side, away from the spring, of the piston; the driving screw is in threaded connection with the piston, and the driving screw and the cylinder barrel are coaxially arranged.

Further, a piston assembly channel is arranged at the other end of the cylinder barrel in the axial direction, and the inner diameter of the piston assembly channel is smaller than that of the cylinder barrel; the piston comprises a first sealing section and a second sealing section which are sequentially and integrally connected along the axial direction of the piston, the first sealing section is in sealing and movable connection with the inner side wall of the cylinder barrel, and the second sealing section is in sealing and movable sleeving in the piston assembly channel; the second sealing section is internally provided with a threaded connecting groove which is coaxially arranged with the second sealing section, and the driving screw is in threaded connection with the threaded connecting groove.

Drawings

FIG. 1 is a schematic perspective view of a pipe broacher according to the present utility model in use;

FIG. 2 is a schematic cross-sectional view of a tubing broacher of the present utility model in use;

FIG. 3 is a schematic cross-sectional view of a hydraulic cylinder of the present utility model;

FIG. 4 is a schematic cross-sectional view of a base of the present utility model;

FIG. 5 is a schematic cross-sectional view of an abrasive article according to the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. an upper base; 11. a lower base; 12. a first press-on groove; 13. a second press-on groove; 14. an operation channel; 15. a threaded through hole; 16. a threaded blind hole;

2. a cylinder; 21. a spring; 22. a piston; 23. a first seal ring; 24. a second seal ring; 25. an oil inlet passage;

3. driving a screw; 4. an inner abrasive; 41. an annular broaching end surface; 5. a pipeline.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1 to 5, the pipe broaching device of the embodiment comprises a base, a hydraulic cylinder and an internal grinding tool 4, wherein a driving screw rod 3 is connected in the hydraulic cylinder, and the driving screw rod 3 is driven by the hydraulic cylinder to stretch and retract; an operation channel 14 and a pressure welding channel for the pipeline 5 to pass through are formed in the base, the operation channel 14 is vertically arranged with the pressure welding channel, the pressure welding channel penetrates through the end surfaces of the two ends of the base, one end of the operation channel 14 penetrates through the end surface of one end of the base, and the other end of the operation channel 14 is communicated with the middle part of the pressure welding channel; the inner grinding tool 4 is in threaded connection with the free end of the driving screw 3, and the end face of the inner grinding tool 4 facing the hydraulic oil cylinder is an annular broaching end face 41.

The outer diameter of the inner grinder 4 of this embodiment is smaller than the inner diameter of the operation channel 14, so that the inner grinder can conveniently enter and exit the operation channel.

As shown in fig. 2 and 5, the outer peripheral sidewall of the inner grinder 4 of the present embodiment has a conical structure. The inner grinding tool with the conical structure is small in structure and easy to enter and exit the operation channel.

As shown in fig. 2 and 4, the base of the present embodiment includes an upper base 1 and a lower base 11, and the upper base 1 and the lower base 11 are detachably connected. The pipeline is conveniently pressed between the upper base and the lower base. Wherein, the upper base 1 and the lower base 11 can be made of high-carbon steel, and are more durable and firm.

As shown in fig. 4, the upper base 1 of the present embodiment is provided with a first press-connection groove 12 and the operation channel 14, the lower base 11 is provided with a second press-connection groove 13, and the first press-connection groove 12 and the second press-connection groove 13 surround to form the press-connection channel.

As shown in fig. 4, the upper base 1 of the present embodiment is provided with a threaded through hole 15, the lower base 11 is provided with a threaded blind hole 16, and the threaded through hole 15 is in butt joint with the threaded blind hole 16 and fixedly connected with the threaded blind hole through a bolt. The upper base and the lower base can be stably connected together by using the threaded through holes and the threaded blind holes.

As shown in fig. 1, 2 and 4, in this embodiment, a plurality of threaded through holes 15 are formed in a position of the upper base 1 near the periphery, a plurality of threaded blind holes 16 are formed in a position of the lower base 11 near the periphery, and the plurality of threaded through holes 15 are arranged in one-to-one correspondence with the plurality of threaded blind holes 16 and are fixedly connected with each other through bolts.

As shown in fig. 2 and 4, the operating channel 14 and the crimping channel of the present embodiment are both cylindrical in structure.

As shown in fig. 1 to 3, the hydraulic cylinder of the present embodiment includes a cylinder 2, a spring 21 and a piston 22, one end of the spring 21 is fixed on an inner side wall of one axial end of the cylinder 2, the piston 22 is movably disposed in the cylinder 2 in a sealing manner and can move along the axial direction of the cylinder 2, the other end of the spring 21 is connected with the piston 22, an oil inlet channel 25 is formed on a side wall of the cylinder 2, and the oil inlet channel 25 is communicated with one side of the piston 22 away from the spring 21; the drive screw 3 is screwed with the piston 22, and the drive screw 3 is coaxially arranged with the cylinder tube 2.

The hydraulic cylinder can also be made of high-carbon steel, and the internal grinding tool can also be made of high-carbon steel, so that the hydraulic cylinder is more firm and durable.

As shown in fig. 2 and 3, the other axial end of the cylinder 2 of the present embodiment is provided with a piston assembly channel, and the inner diameter of the piston assembly channel is smaller than the inner diameter of the cylinder 2; the piston 22 comprises a first sealing section and a second sealing section which are sequentially and integrally connected along the axial direction of the piston, the first sealing section is in sealing and movable connection with the inner side wall of the cylinder barrel 2, and the second sealing section is in sealing and movable sleeving in the piston assembly channel; the second sealing section is internally provided with a threaded connecting groove which is coaxially arranged with the second sealing section, and the driving screw 3 is in threaded connection with the threaded connecting groove. The first sealing section can be in sealing connection with the inner side wall of the cylinder tube 2 through a first sealing ring 23, and the second sealing section can be in sealing connection with the piston assembly channel through a second sealing ring 24.

When the pipeline broaching device is used, a pipeline (the pipeline is provided with a through hole in advance) needing to be broached is fixed through the combination of the upper base and the lower base, the through hole in the pipeline is just opposite to the operation channel, then the driving screw of the hydraulic oil cylinder stretches into the operation channel and stretches into the through hole of the pipeline, then the inner grinding tool is screwed at the free end of the driving screw from one end of the pipeline, then the oil inlet channel on the cylinder barrel is connected with the hydraulic pump, the driving screw is just opposite to the through hole of the pipeline, the hydraulic pump is opened to enable the driving screw and the inner grinding tool to move, and the annular broaching end face of the inner grinding tool is abutted to the periphery of the inner side wall of the through hole and stretches. After the whole device is installed, the through holes with different size apertures can be correspondingly pulled (different base and inner grinding tools of the hole pulling device are used) so as to facilitate the application of various sizes.

When the pipeline broaching device is used, the through hole can be formed in the pipeline, then the pipeline is placed in the compression joint channel to be compressed and fixed, the through hole on the pipeline is opposite to the operation channel, the driving screw rod stretches into the through hole and is connected with the inner grinding tool, the driving screw rod is driven by the hydraulic oil cylinder to drive the inner grinding tool to move, the annular broaching end face of the inner grinding tool is abutted to the periphery of the inner side wall of the through hole and stretches, the pipeline can be formed by one-step broaching, multi-angle broaching can be realized, the sealing performance of the pipeline is better, the step of middle welding can be omitted, risk points are reduced, and cost is saved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The pipeline broaching device is characterized by comprising a base, a hydraulic cylinder and an internal grinding tool, wherein a driving screw rod is connected in the hydraulic cylinder and driven by the hydraulic cylinder to stretch and retract; an operation channel and a pressure welding channel for a pipeline to pass through are formed in the base, the operation channel is vertically arranged with the pressure welding channel, the pressure welding channel penetrates through the end faces of the two ends of the base, one end of the operation channel penetrates through the end face of one end of the base, and the other end of the operation channel is communicated with the middle part of the pressure welding channel; the inner grinding tool is in threaded connection with the free end of the driving screw, and the end face of the inner grinding tool, facing the hydraulic oil cylinder, is an annular broaching end face.

2. A pipe broacher according to claim 1, in which the outer diameter of the internal grinding tool is less than the inner diameter of the working channel.

3. A pipe broacher according to claim 1, wherein the peripheral side walls of the inner abrasive are conically shaped.

4. The pipe broacher of claim 1, wherein said base includes an upper base and a lower base, said upper base and lower base being removably connected.

5. The pipe broacher of claim 4, wherein said upper base defines a first press-through slot and said operating channel, said lower base defines a second press-through slot, said first and second press-through slots surrounding said press-through channel.

6. The pipe broaching machine according to claim 4, wherein the upper base is provided with a threaded through hole, the lower base is provided with a threaded blind hole, and the threaded through hole is in butt joint with the threaded blind hole and fixedly connected with the threaded blind hole through a bolt.

7. The pipe broaching machine according to claim 6, wherein a plurality of threaded through holes are formed in the position, close to the periphery, of the upper base, a plurality of threaded blind holes are formed in the position, close to the periphery, of the lower base, and the plurality of threaded through holes are arranged in one-to-one correspondence with the plurality of threaded blind holes and are fixedly connected through bolts respectively.

8. A pipe broacher according to claim 1, in which the operating channel and crimping channel are each of cylindrical configuration.

9. The pipe broaching machine according to claim 1, wherein the hydraulic oil cylinder comprises a cylinder barrel, a spring and a piston, one end of the spring is fixed on the inner side wall of one axial end of the cylinder barrel, the piston is movably arranged in the cylinder barrel in a sealing manner and can move along the axial direction of the cylinder barrel, the other end of the spring is connected with the piston, an oil inlet channel is formed in the side wall of the cylinder barrel, and the oil inlet channel is communicated with one side of the piston, which is away from the spring; the driving screw is in threaded connection with the piston, and the driving screw and the cylinder barrel are coaxially arranged.

10. A pipe broacher according to claim 9, wherein said barrel is provided at its axially opposite end with a piston assembly passageway having an inner diameter smaller than the inner diameter of said barrel; the piston comprises a first sealing section and a second sealing section which are sequentially and integrally connected along the axial direction of the piston, the first sealing section is in sealing and movable connection with the inner side wall of the cylinder barrel, and the second sealing section is in sealing and movable sleeving in the piston assembly channel; the second sealing section is internally provided with a threaded connecting groove which is coaxially arranged with the second sealing section, and the driving screw is in threaded connection with the threaded connecting groove.