A pipe marking tool

Abstract

This utility model relates to a pipe marking tool. It solves the problem of difficulty in adjusting the marking spacing and depth in existing marking tools. It includes a pipe positioning base, a pipe positioning structure mounted on the base, and a tool holder adjustment assembly connected to one end of the pipe positioning structure via a height adjustment positioning mechanism. A marking tool assembly is located at the lower end of the tool holder adjustment assembly, positioned above the pipe positioning structure. The advantages of this utility model are: it can precisely change the distance between the two marking tools, and the marking depth is controllable, significantly improving marking flexibility.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, specifically to a pipe marking tool. Background Technology

[0002] When conducting longitudinal shrinkage rate and impact resistance tests on thermoplastic pipes, it is necessary to mark smooth, continuous circumferential lines or equally divided tangents on the regularly shaped, smooth-surfaced thermoplastic pipes. In existing technologies, when using a pipe marking tool, one end of the pipe rests against the equipment. If the pipe end is not cut evenly, multiple marks are easily generated during the marking process, affecting the accuracy of the marking. Furthermore, existing marking tools are difficult to adjust the marking spacing and depth as needed, resulting in poor flexibility.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a pipe marking device [CN202022479853.1], which includes a housing and a marking device. The marking device is hinged to the housing. A first rolling auxiliary device is provided on one side of the housing, and a movable baffle is provided on the other side of the housing. A second rolling auxiliary device is provided on the baffle. The pipe passes through the first rolling auxiliary device and then through the second rolling auxiliary device. The first rolling auxiliary device and the second rolling auxiliary device are coaxially arranged.

[0004] The above solution has solved to some extent the problem that pipe marking tools in the prior art are prone to producing multiple marks, which affects the accuracy of marking. However, the solution still has many shortcomings, such as the difficulty in adjusting the marking spacing and marking depth as needed during the marking operation, resulting in poor flexibility of use. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a pipe marking tool that can flexibly adjust the marking spacing and marking depth.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pipe marking device, including a pipe positioning base, a pipe positioning structure provided on the pipe positioning base, a tool holder adjustment assembly connected to one end of the pipe positioning structure on the pipe positioning base through a height adjustment positioning mechanism, and a marking tool assembly located on the upper side of the pipe positioning structure at the lower end of the tool holder adjustment assembly.

[0007] In the aforementioned pipe marking device, the pipe positioning structure includes inclined positioning platforms symmetrically arranged on the pipe positioning base, and an arc-shaped pipe positioning part is provided between the bottoms of the inclined positioning platforms.

[0008] In the aforementioned pipe marking device, the height adjustment and positioning mechanism includes an installation groove disposed at one end of the pipe positioning base and corresponding to the arc-shaped pipe positioning part. A vertically arranged height adjustment rod is connected to the installation groove through a rectangular fixed connecting seat, and a positioning screw is threaded onto the height adjustment rod.

[0009] In the aforementioned pipe marking tool, the tool holder adjustment assembly includes an adjustment seat with one end sleeved on the height adjustment rod and positioned by a positioning screw. The adjustment seat is provided with a lifting adjustment hole into which the height adjustment rod can be inserted, and threaded connection holes for the positioning screw can be connected on both sides of the lifting adjustment hole.

[0010] In the above-mentioned pipe marking device, the end of the adjusting seat away from the lifting adjusting hole is provided with a strip-shaped adjusting groove, a threaded pressure boosting rod is provided in the strip-shaped adjusting groove, and a threaded positioning pressure plate is provided on the upper end face of the strip-shaped adjusting groove. A threaded hole is provided in the middle of the threaded positioning pressure plate for the threaded pressure boosting rod to pass through.

[0011] In the aforementioned pipe marking device, parallel synchronous strip grooves are provided on both sides of the strip adjustment groove, and the threaded positioning pressure plate is positioned by a positioning rod provided in the synchronous strip groove.

[0012] In the aforementioned pipe marking device, the marking tool assembly includes a connecting tool holder, with marking tool holders slidably extended and retracted at both ends of the connecting tool holder via telescopic rods, and marking tools are mounted on the marking tool holders.

[0013] In the above-mentioned pipe marking tool, a telescopic positioning seat is provided at the bottom of the connecting knife holder. One end of the telescopic positioning seat extends toward the bottom of the marking knife holder and the telescopic length of the marking knife holder is positioned by a fixing screw.

[0014] In the aforementioned pipe marking tool, the connecting tool holder has a connecting hole for inserting a threaded pressure rod, and the threaded pressure rod is provided with a strip-shaped locking through hole. A locking screw corresponding to the strip-shaped locking through hole is passed through the connecting tool holder.

[0015] In the aforementioned pipe marking device, the height of the upper end face of the marking cutter is lower than the height of the upper end face of the marking cutter holder, and the height of the lower end face of the marking cutter is lower than the height of the lower end face of the marking cutter holder.

[0016] Compared with the prior art, the advantages of this utility model are as follows: it can accurately change the distance between the two scribing cutters to meet the scribing spacing requirements of different pipe materials, solving the problem of fixed and difficult-to-adjust spacing of traditional scribing tools; and through the cutter holder adjustment component and height adjustment positioning mechanism, it can drive the scribing cutter assembly to perform long-stroke overall lifting and lowering, directly changing the contact depth between the scribing cutter and the pipe surface. At the same time, the threaded pressure booster rod can work with the threaded positioning pressure plate to further fine-tune the pressure, ensuring the stability of scribing depth adjustment, effectively solving the problem of difficult scribing depth control, significantly improving scribing flexibility, and is suitable for scribing scenarios of various pipe materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the pipe positioning base structure in this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention;

[0020] Figure 4 This is a cross-sectional view of the connecting tool holder in this utility model;

[0021] Figure 5 This is a schematic diagram of the adjustment seat structure in this utility model.

[0022] In the diagram: 1. Pipe positioning base; 2. Pipe positioning structure; 3. Inclined positioning platform; 4. Arc-shaped pipe positioning part; 5. Height adjustment positioning mechanism; 6. Mounting groove; 7. Fixed connecting seat; 8. Height adjustment rod; 9. Positioning screw; 10. Tool holder adjustment assembly; 11. Adjustment seat; 2. Lifting adjustment hole; 32. Threaded connection hole; 43. Strip-shaped adjustment through groove; 44. Threaded pressure booster rod; 45. Threaded positioning pressure plate; 46. Threaded hole; 47. Synchronous strip-shaped through groove; 48. Positioning rod; 49. Marking tool assembly; 5. Connecting tool holder; 51. Telescopic rod; 52. Marking tool holder; 53. Marking tool; 54. Telescopic positioning seat; 55. Fixed screw; 56. Connecting hole; 57. Strip-shaped locking through hole; 58. Locking screw; 59. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-5 As shown, a pipe marking tool includes a pipe positioning base 1, a pipe positioning structure 2 is provided on the pipe positioning base 1, a tool holder adjustment assembly 4 is connected to the pipe positioning base 1 and one end of the pipe positioning structure 2 through a height adjustment positioning mechanism 3, and a marking tool assembly 5 is provided at the lower end of the tool holder adjustment assembly 4 on the upper side of the pipe positioning structure 2.

[0025] The pipe positioning structure 2 includes an inclined positioning platform 21 symmetrically arranged on the pipe positioning base 1, and an arc-shaped pipe positioning part 22 is provided between the bottoms of the inclined positioning platform 21.

[0026] The inclined positioning platform 21 can position the two sides of the pipe to be marked in the arc-shaped pipe positioning part 22 to prevent misalignment caused by force during marking.

[0027] As can be seen, the height adjustment and positioning mechanism 3 includes an installation groove 31 disposed at one end of the pipe positioning base 1 and corresponding to the arc-shaped pipe positioning part 22. A vertically arranged height adjustment rod 33 is connected to the installation groove 31 through a rectangular fixed connecting seat 32. A positioning screw 34 is threaded onto the height adjustment rod 33.

[0028] The height adjustment rod 33 is provided with a strip-shaped threaded groove through which the positioning screw 34 can pass. The positioning screw 34 is threaded through the strip-shaped threaded groove to position the height of the adjustment seat 41, thereby initially controlling the scribing gap between the scribing tool assembly 5 and the pipe.

[0029] Furthermore, the tool holder adjustment assembly 4 includes an adjustment seat 41 with one end sleeved on the height adjustment rod 33 and positioned by the positioning screw 34. The adjustment seat 41 is provided with a lifting adjustment hole 42 into which the height adjustment rod 33 can be inserted, and threaded connection holes 43 on both sides of the lifting adjustment hole 42 are provided for connection of the positioning screw 34.

[0030] Specifically, the end of the adjusting seat 41 away from the lifting adjusting hole 42 is provided with a strip-shaped adjusting groove 44, a threaded pressure boosting rod 45 is provided in the strip-shaped adjusting groove 44, and a threaded positioning pressure plate 46 is provided on the upper end face of the strip-shaped adjusting groove 44. A threaded hole 47 is provided in the middle of the threaded positioning pressure plate 46, through which the threaded pressure boosting rod 45 can pass.

[0031] The lower end of the threaded pressure booster 45 passes through the strip-shaped adjustment groove 44 and is connected to the scribing tool assembly 5. Its position can be adjusted by sliding as needed. Its height is threadedly positioned by the threaded positioning plate 46, and its position is indirectly positioned by the positioning rod 49 set in the strip-shaped groove to position the threaded positioning plate 46.

[0032] Furthermore, the two sides of the strip-shaped adjustment channel 44 are provided with synchronous strip-shaped channels 48 arranged in parallel to each other, and the threaded positioning plate 46 is positioned by the positioning rod 49 provided in the synchronous strip-shaped channel 48.

[0033] More specifically, the scribing tool assembly 5 includes a connecting tool holder 51, with scribing tool holders 53 slidably extended and retracted at both ends of the connecting tool holder 51 via telescopic rods 52, and scribing tools 54 disposed on the scribing tool holders 53.

[0034] The distance between the two scribing positions is adjusted by telescopic rod 52 between scribing tool holder 53 and connecting tool holder 51.

[0035] In detail, a telescopic positioning seat 55 is provided at the bottom of the connecting tool holder 51. One end of the telescopic positioning seat 55 extends toward the bottom of the scribing tool holder 53 and the telescopic length of the scribing tool holder 53 is positioned by a fixing screw 56.

[0036] First, adjust the length of the telescopic positioning seat 55. After adjustment, fix the position using the fixing screw 56 to position the distance between the two scribing tools 54.

[0037] Preferably, the connecting tool holder 51 has a connecting hole 57 for inserting a threaded pressure booster rod 45, and the threaded pressure booster rod 45 is provided with a strip-shaped locking through hole 58. A locking screw 59 corresponding to the strip-shaped locking through hole 58 is provided on the connecting tool holder 51.

[0038] After the pressure boosting height of the threaded boosting rod 45 is adjusted, insert the locking screw 59 to lock the bottom of the threaded top pressure rod, thus forming the height positioning when marking the line.

[0039] In addition, the height of the upper end face of the scribing tool 54 is lower than the height of the upper end face of the scribing tool holder 53, and the height of the lower end face of the scribing tool 54 is lower than the height of the lower end face of the scribing tool holder 53.

[0040] In summary, the principle of this embodiment is as follows: the pipe positioning structure 2 uses the symmetrically arranged inclined positioning platform 21 and the bottom arc-shaped pipe positioning part 22 to support and position the pipe to be marked. The inclined positioning platform 21 limits the pipe from both sides to prevent the pipe from being misaligned due to force when marking, thus achieving stable positioning of the pipe.

[0041] Before scribing: The position of the positioning screw 34 in the strip-shaped threaded groove is adjusted to initially position the height of the adjusting seat 41 sleeved on the height adjusting rod 33, thereby initially controlling the scribing gap between the scribing tool assembly 5 and the pipe. Secondly, the strip-shaped adjusting groove 44 provides sliding adjustment space for the threaded pressure rod 45, which can drive the scribing tool assembly 5 to adjust its lateral position. The threaded positioning plate 46 cooperates with the threaded pressure rod 45 through the threaded hole 47 to achieve height positioning of the threaded pressure rod 45. Simultaneously, the positioning rod 49 in the strip-shaped groove 48 positions the threaded positioning plate 46, indirectly fixing the lateral position of the threaded pressure rod 45, and realizing fine adjustment of the tool holder.

[0042] During scribing: The telescopic rods 52 connecting the two ends of the tool holder 51 can drive the scribing tool holder 53 to extend and retract, thereby adjusting the distance between the two scribing tools 54. The telescopic positioning seat 55 cooperates with the fixing screw 56 to position the adjusted scribing tool holder 53 and fix the distance between the two scribing tools 54. The connecting hole 57 allows the threaded pressure boosting rod 45 to be inserted. The strip-shaped locking through hole 58 cooperates with the locking screw 59 to lock the bottom after the height of the threaded pressure boosting rod 45 is adjusted, forming a height positioning during scribing. During scribing, rotating the pipe fitting can achieve precise scribing operation.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0044] Although this document frequently uses terms such as pipe positioning base 1, pipe positioning structure 2, inclined positioning platform 21, arc-shaped pipe positioning part 22, height adjustment positioning mechanism 3, mounting groove 31, fixed connecting seat 32, height adjustment rod 33, positioning screw 34, tool holder adjustment assembly 4, adjustment seat 41, lifting adjustment hole 42, threaded connection hole 43, strip-shaped adjustment through groove 44, threaded pressure booster rod 45, threaded positioning pressure plate 46, threaded hole 47, synchronous strip-shaped through groove 48, positioning rod 49, scribing tool assembly 5, connecting tool holder 51, telescopic rod 52, scribing tool holder 53, scribing tool 54, telescopic positioning seat 55, fixed screw 56, connecting hole 57, strip-shaped locking through hole 58, and locking screw 59, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pipe scribe comprising a pipe positioning base (1), characterised in that, The pipe positioning base (1) is provided with a pipe positioning structure (2), one end of the pipe positioning base (1) and located at the pipe positioning structure (2) is connected with a cutter seat adjusting assembly (4) through a height adjusting positioning mechanism (3), and the lower end of the cutter seat adjusting assembly (4) is provided with a scribing cutter assembly (5) located on the upper side of the pipe positioning structure (2).

2. A pipe marker as defined in claim 1 wherein, The pipe positioning structure (2) comprises inclined positioning table surfaces (21) symmetrically arranged on the pipe positioning base (1), and the bottom of the inclined positioning table surfaces (21) is provided with arc-shaped pipe positioning portions (22).

3. A pipe marker as defined in claim 2 wherein, The height adjusting positioning mechanism (3) comprises mounting grooves (31) arranged at one end of the pipe positioning base (1) and corresponding to the arc-shaped pipe positioning portions (22), the mounting grooves (31) are connected with vertically arranged height adjusting rods (33) through rectangularly arranged fixed connecting seats (32) arranged in the mounting grooves (31), and the height adjusting rods (33) are threadedly connected with positioning screws (34).

4. A pipe marker as defined in claim 3 wherein, The cutter seat adjusting assembly (4) comprises an adjusting seat (41) arranged at one end of the height adjusting rod (33) and positioned through the positioning screw (34), the adjusting seat (41) is provided with lifting adjusting holes (42) into which the height adjusting rod (33) is inserted, and the lifting adjusting holes (42) are provided with threaded connecting holes (43) into which the positioning screw (34) is connected.

5. A pipe marker as defined in claim 4 wherein, The end of the adjusting seat (41) away from the lifting adjusting hole (42) is provided with a strip-shaped adjusting through groove (44), the strip-shaped adjusting through groove (44) is provided with a threaded booster rod (45), and the upper end surface of the strip-shaped adjusting through groove (44) is provided with a threaded positioning pressing plate (46), and the middle part of the threaded positioning pressing plate (46) is provided with a threaded hole (47) through which the threaded booster rod (45) passes.

6. A pipe marker as defined in claim 5 wherein, The strip-shaped adjusting through groove (44) is provided with synchronously arranged strip-shaped through grooves (48) arranged in parallel with each other, and the threaded positioning pressing plate (46) is positioned through positioning rods (49) arranged in the strip-shaped through grooves (48).

7. A pipe marker as defined in claim 5 wherein, The scribing cutter assembly (5) comprises a connecting cutter seat (51), the connecting cutter seat (51) is provided with scribing cutter seats (53) at both ends through telescopic rods (52) arranged in a sliding telescopic mode, and the scribing cutter seats (53) are provided with scribing cutters (54).

8. A pipe marker as defined in claim 7 wherein, The bottom of the connecting cutter seat (51) is provided with a telescopic positioning seat (55), one end of the telescopic positioning seat (55) extends towards the bottom of the scribing cutter seat (53) and positions the scribing cutter seat (53) in a telescopic length through a fixed screw rod (56).

9. A pipe marker as defined in claim 8 wherein, The connecting cutter seat (51) is provided with a connecting hole (57) into which the threaded booster rod (45) is inserted, the threaded booster rod (45) is provided with a strip-shaped locking through hole (58), and the connecting cutter seat (51) is provided with a locking screw rod (59) corresponding to the strip-shaped locking through hole (58).

10. A pipe marker as defined in claim 7 wherein, The upper end surface of the scribing cutter (54) is lower than the height of the upper end surface of the scribing cutter seat (53), and the lower end surface of the scribing cutter (54) is lower than the height of the lower end surface of the scribing cutter seat (53).

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