Pipeline cross connection lofting and line drawing device

Abstract

The utility model discloses a pipeline cross connection lofting and line drawing device which comprises a positioning mechanism, a line drawing mechanism and a driving mechanism, the positioning mechanism comprises a positioning rod and a ruler, the positioning rod extends in the radial direction of a pre-perforated pipeline, and the ruler is perpendicular to the positioning rod and rotationally arranged on the positioning rod in a sleeving mode; the line drawing mechanism comprises a movable seat and a painting brush, the movable seat is detachably and fixedly connected with the ruler, the painting brush is parallel to the positioning rod and penetrates through the movable seat in a sliding mode, and one end of the painting brush is used for drawing lines on the side wall of the pre-trepanning pipeline; the driving mechanism is connected with the positioning rod and used for driving the positioning rod to rotate so as to adjust the included angle between the positioning rod and the pre-trepanning pipeline. The pipeline cross connection lofting and line drawing device has the advantages that the pipeline cross connection lofting and line drawing device is suitable for being used when any included angle is formed between a pre-connection pipeline and a pre-trepanning pipeline, and higher applicability is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection auxiliary tool technical field especially, relates to a pipeline intersection connection lofting and line drawing device. BACKGROUND

[0002] In the construction of steel structure, often encounter two pipelines cross connection situation, two pipeline connection line is called intersection line. Figure 1 As shown in the figure, in order to make preconnection pipeline 1 and preperforated pipeline 2 intersect in a certain angle, need to be perforated on the wall of preperforated pipeline 2, in order to ensure the accuracy of perforation, need to draw hole line on the wall of preperforated pipeline 2 in advance.

[0003] The existing pipeline intersection connection lofting and line drawing device (such as the auxiliary line drawing device for pipeline connection disclosed in application No. 202122469544.0) when drawing line on the preperforated pipeline, the rotating rod is equivalent to the central axis of the preconnection pipeline, since the rotating rod is always at 90° angle with the preperforated pipeline, the brush is also always at 90° angle with the preperforated pipeline, therefore, the line drawing device of this structure is only suitable for preconnection pipeline and preperforated pipeline at 90° angle, when preconnection pipeline is connected with preperforated pipeline in inclined posture, it is not applicable. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the above technical deficiencies, and provides a pipeline intersection connection lofting and line drawing device, which solves the technical problem that the existing lofting and line drawing device is only suitable for preconnection pipeline and preperforated pipeline at 90° angle, and is not applicable when preconnection pipeline is connected with preperforated pipeline in inclined posture.

[0005] To achieve the above technical purpose, the technical scheme of the utility model provides a pipeline intersection connection lofting and line drawing device, which comprises:

[0006] A positioning mechanism comprising a positioning rod and a scale, the positioning rod extends along the radial direction of the preperforated pipeline, and the scale is perpendicular to the positioning rod and is rotatably sleeved on the positioning rod;

[0007] A line drawing mechanism comprising a movable seat and a brush, the movable seat is detachably fixed to the scale, and the brush is parallel to the positioning rod and slidably penetrates the movable seat, one end of the brush is used to draw line on the side wall of the preperforated pipeline;

[0008] A driving mechanism connected to the positioning rod, used to drive the positioning rod to rotate, so as to adjust the angle between the positioning rod and the preperforated pipeline.

[0009] Further, the positioning mechanism further comprises two fixed seats and a rotating seat, the two fixed seats are oppositely and spacedly arranged, the rotating seat is arranged between the two fixed seats and rotationally connected with the two fixed seats, a first guide channel is formed in the rotating seat, the two fixed seats are used for detachably fixedly connecting with the pre-bored pipeline and enabling the first guide channel to extend along the radial direction of the pre-bored pipeline, the positioning rod penetrates through the first guide channel and is detachably fixedly connected with the rotating seat, and the driving mechanism is connected with the rotating seat and used to drive the rotating seat to rotate so as to adjust the included angle between the first guide channel and the pre-bored pipeline.

[0010] Further, the rotating seat comprises a rotating shaft, a rotating disc and a sleeve, two ends of the rotating shaft are rotationally connected with the two fixed seats respectively, the rotating disc is sleeved on the rotating shaft and detachably fixedly connected with the rotating shaft, the sleeve is perpendicular to the rotating shaft and fixedly connected with the rotating disc, the first guide channel is formed in the sleeve, and one end of the driving mechanism is connected with the rotating shaft and used to drive the rotating shaft to rotate so as to adjust the included angle between the sleeve and the pre-bored pipeline.

[0011] Further, the positioning mechanism further comprises a first fastener, one end of the first fastener is detachably fixedly connected with the sleeve, and the other end of the first fastener is used to tightly abut or loosen the positioning rod.

[0012] Further, the driving mechanism comprises a worm wheel, a worm and a hand wheel, the worm wheel is sleeved on one end of the rotating shaft and detachably fixedly connected with the rotating shaft, the worm is perpendicular to the rotating shaft and engaged with the worm wheel, and the hand wheel is fixedly connected with the end of the worm.

[0013] Further, the positioning mechanism further comprises a shaft sleeve, the shaft sleeve is sleeved on the positioning rod and detachably fixedly connected with the positioning rod, and one end of the scale is rotationally sleeved on the shaft sleeve.

[0014] Further, the positioning mechanism further comprises a second fastener, one end of the second fastener is detachably fixedly connected with the shaft sleeve, and the other end of the second fastener is used to tightly abut or loosen the positioning rod.

[0015] Further, the movable seat is slidingly sleeved on the scale, and the line drawing mechanism further comprises a third fastener, one end of the third fastener is detachably fixedly connected with the movable seat, and the other end of the third fastener is used to tightly abut or loosen the scale.

[0016] Further, a second guide channel is formed in the movable seat, the second guide channel is parallel to the positioning rod, and the brush penetrates through the second guide channel.

[0017] Further, the line drawing mechanism further comprises a fourth fastener, one end of the fourth fastener is detachably connected with the movable seat, and the other end of the fourth fastener is used for abutting or loosening the brush.

[0018] Compared with the prior art, the beneficial effects of the utility model include: in use, the positioning rod extends along the radial direction of the pre-opening pipeline, the driving mechanism is controlled to drive the positioning rod to rotate, so that the included angle between the positioning rod and the pre-opening pipeline can be adjusted, the positioning rod extends along the radial direction of the pre-connection pipeline, the brush is slid through the movable seat, after confirming the distance between the brush and the positioning rod, the movable seat is detachably connected with the scale, the brush is guaranteed to be parallel to the positioning rod, and the distance between the central axis of the brush and the central axis of the positioning rod is guaranteed to be equal to the radius of the pre-connection pipeline, the hand exerts force on the brush, one end of the brush abuts against the side wall of the pre-opening pipeline, the hand pushes the brush to rotate around the positioning rod, and one end of the brush can draw a hole line on the side wall of the pre-opening pipeline, the pipeline cross connection lofting and line drawing device is suitable for use when the pre-connection pipeline and the pre-opening pipeline form an arbitrary included angle, and has stronger applicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the prior art pre-connection pipeline and the pre-opening pipeline when being connected;

[0020] Figure 2 is a structural schematic view of the pipeline cross connection lofting and line drawing device provided by the utility model;

[0021] Figure 3 is a structural schematic view of the pipeline cross connection lofting and line drawing device provided by the utility model when being used;

[0022] Figure 4 is Figure 3 is an explosion view of the connection relationship between the rotating seat and the driving mechanism in the pipeline cross connection lofting and line drawing device;

[0023] Figure 5 is Figure 3 is an explosion view of the connection relationship between the shaft sleeve and the scale in the pipeline cross connection lofting and line drawing device;

[0024] In the figure: 1-preconnected pipeline, 2-prebore pipeline, 100-positioning mechanism, 110-positioning rod, 120-ruler, 130-fixing seat, 140-rotating seat, 141-first guide channel, 142-rotating shaft, 143-rotating disc, 144-sleeve, 150-first fastener, 160-shaft sleeve, 161-lower sleeve, 162-upper sleeve, 163-clamping groove, 170-second fastener, 180-counterweight rod, 190-electromagnetic switch, 200-line drawing mechanism, 210-moving seat, 211-second guide channel, 220-pen, 221-pen shaft, 222-pen head, 223-pen clamp, 230-third fastener, 240-fourth fastener, 300-driving mechanism, 310-worm gear, 320-worm, 330-hand wheel. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed with the utility model combined with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0026] The utility model provides a pipeline intersection connection lofting line drawing device, its structure as Figure 2 The utility model provides a pipeline intersection connection lofting line drawing device, its structure as Figure 3 The utility model provides a pipeline intersection connection lofting line drawing device, its structure as The utility model provides a pipeline intersection connection lofting line drawing device, its structure as

[0027] In use, the positioning rod 110 extends along the radial direction of the pre-pierced pipe 2, the driving mechanism 300 is operated to drive the positioning rod 110 to rotate, so as to adjust the included angle between the positioning rod 110 and the pre-pierced pipe 2, the brush 220 is slid through the movable seat 210, the distance between the brush 220 and the positioning rod 110 can be confirmed according to the scale on the ruler 120, the movable seat 210 is detachably connected with the ruler 120, so as to ensure that the brush 220 is parallel to the positioning rod 110 and the distance between the central axis of the brush 220 and the central axis of the positioning rod 110 is equal to the radius of the pre-connected pipe 1, the brush 220 is pushed by hand to rotate around the positioning rod 110, and one end of the brush 220 can draw a hole line on the side wall of the pre-pierced pipe 2. The pipe cross connection layout drawing device is suitable for use when the pre-connected pipe 1 and the pre-pierced pipe 2 form an arbitrary included angle, and has stronger applicability.

[0028] As a preferred embodiment, refer to Figure 2 and Figure 4 The positioning mechanism 100 further comprises two fixed seats 130 and a rotating seat 140, the two fixed seats 130 are oppositely and spacedly arranged, the rotating seat 140 is arranged between the two fixed seats 130 and rotationally connected with the two fixed seats 130, a first guide channel 141 is formed in the rotating seat 140, the two fixed seats 130 are used to be detachably connected with the pre-pierced pipe 2 and make the first guide channel 141 extend along the radial direction of the pre-pierced pipe 2, the positioning rod 110 penetrates through the first guide channel 141 and is detachably connected with the rotating seat 140, the driving mechanism 300 is connected with the rotating seat 140 and used to drive the rotating seat 140 to rotate, so as to adjust the included angle between the first guide channel 141 and the pre-pierced pipe 2, the brush 220 is supported and guided by the rotating seat 140, the driving mechanism 300 is operated to drive the rotating seat 140 to rotate, so as to adjust the included angle between the first guide channel 141 and the pre-pierced pipe 2, and make the first guide channel 141 extend along the radial direction of the pre-connected pipe 1, at this time, the first guide channel 141 coincides with the central axis of the pre-connected pipe 1.

[0029] As a preferred embodiment, refer to Figure 2The two fixing bases 130 are provided with protruding structures on the sides abutting against the outer wall of the pre-pierced pipe 2. When the two fixing bases 130 are placed on the pre-pierced pipe 2, the two protruding structures can clamp the pre-pierced pipe 2, thereby improving the fixing effect of the two fixing bases 130 on the pre-pierced pipe 2.

[0030] As a preferred embodiment, refer to Figure 2 and Figure 4 The rotating base 140 comprises a rotating shaft 142, a rotating disc 143 and a sleeve 144. The two ends of the rotating shaft 142 are rotatably connected with the two fixing bases 130 respectively. The rotating disc 143 is sleeved on the rotating shaft 142 and detachably fixedly connected with the rotating shaft 142. The sleeve 144 is perpendicular to the rotating shaft 142 and fixedly connected with the rotating disc 143. The first guide channel 141 is formed in the sleeve 144. The driving mechanism 300 is connected with one end of the rotating shaft 142 and used to drive the rotating shaft 142 to rotate, so as to adjust the included angle between the sleeve 144 and the pre-pierced pipe 2. By controlling the driving mechanism 300, the driving mechanism 300 can drive the rotating shaft 142 to rotate, so as to adjust the included angle between the sleeve 144 and the pre-pierced pipe 2, and make the sleeve 144 extend along the radial direction of the pre-pierced pipe 1. At this time, the sleeve 144 coincides with the central axis of the pre-pierced pipe 1. The two ends of the rotating shaft 142 are rotatably connected with the two fixing bases 130 through snap rings. The rotating disc 143 is detachably fixedly connected with the rotating shaft 142 through key clamping.

[0031] As a preferred embodiment, refer to Figure 2 and Figure 4 The positioning mechanism 100 further comprises a first fastener 150. One end of the first fastener 150 is detachably fixedly connected with the sleeve 144. The other end of the first fastener 150 is used to abut against or release the positioning rod 110. By placing the two fixing bases 130 on the pre-pierced pipe 2 and controlling the driving mechanism 300, the included angle between the positioning rod 110 and the pre-pierced pipe 2 can be adjusted, so as to make the positioning rod 110 coincide with the central axis of the pre-pierced pipe 1. By controlling the first fastener 150, the other end of the first fastener 150 is released from the positioning rod 110. At this time, the positioning rod 110 can move in the sleeve 144. When the end of the positioning rod 110 abuts against the outer wall of the pre-pierced pipe 2, the other end of the first fastener 150 is abutted against the positioning rod 110 by controlling the first fastener 150. At this time, the positioning rod 110 is fixedly connected with the sleeve 144 again.

[0032] As a preferred embodiment, refer to Figure 2 and Figure 4The sleeve 144 is provided with a first screw hole, the first fastener 150 is a first bolt, the first bolt passes through the first screw hole and is screwed with the first screw hole, and the end of the first bolt is used for tightly or loosing the positioning rod 110. By rotating the first bolt, the end of the first bolt is loosened from the positioning rod 110, at this time, the positioning rod 110 can move in the sleeve 144. When the end of the positioning rod 110 abuts against the outer side wall of the pre-bored pipeline 2, the end of the first bolt is tightly abutted against the positioning rod 110 by rotating the first bolt, at this time, the positioning rod 110 is fixed with the sleeve 144 again.

[0033] As a preferred embodiment, refer to Figure 2 and Figure 4 The driving mechanism 300 comprises a worm wheel 310, a worm 320 and a hand wheel 330. The worm wheel 310 is sleeved on one end of the rotating shaft 142 and detachably fixedly connected with the rotating shaft 142. The worm 320 is perpendicular to the rotating shaft 142 and engaged with the worm wheel 310. The hand wheel 330 is fixedly connected with the end of the worm 320. By rotating the hand wheel 330, the worm 320 can be driven to rotate, and the worm wheel 310 is driven to rotate, so that the rotating shaft 142 can be driven to rotate. The worm wheel 310 is detachably fixedly connected with the rotating shaft 142 through keying.

[0034] As a preferred embodiment, refer to Figure 2 and Figure 5 The positioning mechanism 100 further comprises a shaft sleeve 160, which is sleeved on the positioning rod 110 and detachably fixedly connected with the positioning rod 110. One end of the scale 120 is rotatably sleeved on the shaft sleeve 160. The shaft sleeve 160 can move along the length direction of the positioning rod 110, so that the distance between the scale 120 and the end of the positioning rod 110 can be adjusted, and the device has stronger applicability.

[0035] As a preferred embodiment, refer to Figure 2 and Figure 5The positioning mechanism 100 further comprises a second fastener 170, one end of the second fastener 170 is detachably connected with the shaft sleeve 160, and the other end of the second fastener 170 is used to tightly contact or release the positioning rod 110. When it is needed to adjust the distance between the scale 120 and the end of the positioning rod 110, the other end of the second fastener 170 is released from the positioning rod 110 by operating the second fastener 170, at this time, the shaft sleeve 160 can slide relative to the positioning rod 110. When the scale 120 is moved to the appropriate position, the other end of the second fastener 170 is tightly contacted with the positioning rod 110 by operating the second fastener 170, at this time, the shaft sleeve 160 is fixed with the positioning rod 110.

[0036] As a preferred embodiment, refer to Figure 2 and Figure 5 The shaft sleeve 160 is provided with a second screw hole, the second fastener 170 is a second screw, the second screw passes through the second screw hole and is screwed with the second screw hole, and the end of the second screw is used to tightly contact or release the positioning rod 110. When it is needed to adjust the distance between the scale 120 and the end of the positioning rod 110, the end of the second screw is released from the positioning rod 110 by rotating the second screw, at this time, the shaft sleeve 160 can slide relative to the positioning rod 110. When the scale 120 is moved to the appropriate position, the end of the second screw is tightly contacted with the positioning rod 110 by rotating the second screw, at this time, the shaft sleeve 160 is fixed with the positioning rod 110.

[0037] As a preferred embodiment, refer to Figure 2 One end of the positioning rod 110 is a pointed end structure, which can improve the abutting effect with the pre-punched pipeline 2.

[0038] As a preferred embodiment, refer to Figure 5 The shaft sleeve 160 comprises a lower sleeve 161 and an upper sleeve 162, the lower sleeve 161 is screwed with the upper sleeve 162, and a clamping groove 163 in a ring structure is formed between the lower sleeve 161 and the upper sleeve 162. One end of the scale 120 is arranged in the clamping groove 163, so that the scale 120 can be limited by the clamping groove 163, and the scale 120 can only rotate relative to the shaft sleeve 160 and cannot move along the length direction of the shaft sleeve 160.

[0039] As a preferred embodiment, refer to Figure 2 The positioning mechanism 100 further comprises a counterweight rod 180, one end of the counterweight rod 180 is fixedly connected with one end of the scale 120, and the balance of the scale 120 can be maintained.

[0040] As a preferred embodiment, refer to Figure 2 The positioning mechanism 100 further comprises two electromagnetic switches 190, and the two electromagnetic switches 190 are arranged on the two fixed bases 130 respectively. The two fixed bases 130 are electromagnets. When the fixed bases 130 are powered on, the fixed bases 130 have magnetism. When the two fixed bases 130 are powered off, the fixed bases 130 lose magnetism. Pressing the two electromagnetic switches 190 can make the fixed bases 130 powered on or powered off.

[0041] As a preferred embodiment, refer to Figure 2 The movable base 210 is sleeved on the scale 120, and the line drawing mechanism 200 further comprises a third fastener 230. One end of the third fastener 230 is detachably connected with the movable base 210, and the other end of the third fastener 230 is used for tightly pressing or loosening the scale 120. The movable base 210 can move along the length direction of the scale 120, so that the distance between the paintbrush 220 and the positioning rod 110 can be adjusted, and the distance between the central axis of the paintbrush 220 and the central axis of the positioning rod 110 is equal to the radius of the pre-connected pipeline 1. When it is necessary to adjust the distance between the paintbrush 220 and the positioning rod 110, the other end of the third fastener 230 is loosened from the scale 120 by operating the third fastener 230. At this time, the movable base 210 can slide relative to the scale 120. When the movable base 210 moves to a suitable position, the other end of the third fastener 230 is tightly pressed against the scale 120 again by operating the third fastener 230. At this time, the movable base 210 is fixed with the scale 120 again.

[0042] As a preferred embodiment, refer to Figure 2 The movable base 210 is sleeved on the scale 120, and the line drawing mechanism 200 further comprises a third fastener 230. One end of the third fastener 230 is detachably connected with the movable base 210, and the other end of the third fastener 230 is used for tightly pressing or loosening the scale 120. The movable base 210 can move along the length direction of the scale 120, so that the distance between the paintbrush 220 and the positioning rod 110 can be adjusted, and the distance between the central axis of the paintbrush 220 and the central axis of the positioning rod 110 is equal to the radius of the pre-connected pipeline 1. When it is necessary to adjust the distance between the paintbrush 220 and the positioning rod 110, the other end of the third fastener 230 is loosened from the scale 120 by operating the third fastener 230. At this time, the movable base 210 can slide relative to the scale 120. When the movable base 210 moves to a suitable position, the other end of the third fastener 230 is tightly pressed against the scale 120 again by operating the third fastener 230. At this time, the movable base 210 is fixed with the scale 120 again.

[0043] As a preferred embodiment, refer to Figure 2The second guiding channel 211 is parallel to the positioning rod 110, and the brush 220 penetrates through the second guiding channel 211 and can be guided and positioned through the second guiding channel 211.

[0044] As a preferred embodiment, refer to Figure 2 The line drawing mechanism 200 further comprises a fourth fastener 240, one end of the fourth fastener 240 is detachably fixed to the movable seat 210, and the other end of the fourth fastener 240 is used for tightly abutting or loosening the brush 220. Before the brush 220 is used, the brush 220 is fixed through the fourth fastener 240, so that the brush 220 is prevented from moving out of the second guiding channel 211. When the brush 220 is used, the other end of the fourth fastener 240 is loosened from the brush 220 through the operation of the fourth fastener 240. At this time, the brush 220 can slide relative to the movable seat 210. Since the pre-punching pipe 2 is a curved surface, the end of the brush 220 can abut against the outer side wall of the pre-punching pipe 2 at different positions through the manual pushing of the brush 220, so that a hole line is drawn on the pre-punching pipe 2.

[0045] As a preferred embodiment, refer to Figure 2 The fourth fastener 240 is a fourth screw, the fourth screw penetrates through the fourth screw hole and is screwed with the fourth screw hole, and the end of the fourth screw is used for tightly abutting or loosening the brush 220. When the brush 220 is used, the end of the fourth screw is loosened from the brush 220 through the rotation of the fourth screw. At this time, the brush 220 can slide relative to the movable seat 210. Since the pre-punching pipe 2 is a curved surface, the end of the brush 220 can abut against the outer side wall of the pre-punching pipe 2 at different positions through the manual pushing of the brush 220, so that a hole line is drawn on the pre-punching pipe 2.

[0046] As a preferred embodiment, refer to Figure 3 and Figure 1 The brush 220 comprises a pen barrel 221, a pen head 222 and a pen clamp 223. The pen barrel 221 penetrates through the second guiding channel 211. The pen head 222 is slidingly arranged at the end of the pen barrel 221 and can move along the length direction of the pen barrel 221. One end of the pen clamp 223 is fixed to the pen barrel 221, and the other end of the pen clamp 223 is used for clamping or loosening the pen head 222, so that the pen head 222 can be replaced.

[0047] In order to better understand the present application, the following will be combined with Figure 5 - ​The working principle of the technical scheme of the utility model is explained in detail.

[0048] In use, the two fixing bases 130 are placed on the pre-pierced pipeline 2, and the sleeve 144 extends along the radial direction of the pre-pierced pipeline 2, at this time, the positioning rod 110 extends along the radial direction of the pre-pierced pipeline 2, by rotating the hand wheel 330, the worm 320 can be driven to rotate, and the worm wheel 310 is driven to rotate, so that the rotating shaft 142 can be driven to rotate, and then the rotating disc 143 and the sleeve 144 are driven to rotate by the rotating shaft 142, the included angle between the sleeve 144 and the pre-pierced pipeline 2 is adjusted, the sleeve 144 extends along the radial direction of the pre-connected pipeline 1, at this time, the sleeve 144 coincides with the central axis of the pre-connected pipeline 1, that is, the positioning rod 110 coincides with the central axis of the pre-connected pipeline 1, by rotating the first bolt, the end of the first bolt loosens the positioning rod 110, at this time, the positioning rod 110 can move in the sleeve 144, when the end of the positioning rod 110 abuts against the outer side wall of the pre-pierced pipeline 2, by rotating the first bolt, the end of the first bolt abuts against the positioning rod 110 again, the distance between the brush 220 and the positioning rod 110 is adjusted again, by rotating the third bolt, the end of the third bolt loosens the ruler 120, at this time, the movable base 210 can slide relative to the ruler 120, when the distance between the central axis of the brush 220 and the central axis of the positioning rod 110 is equal to the radius of the pre-connected pipeline 1, by rotating the third bolt, the end of the third bolt abuts against the ruler 120 again, the hand exerts force on the brush 220, one end of the brush 220 abuts against the side wall of the pre-pierced pipeline 2, the hand pushes the brush 220 to rotate around the positioning rod 110, one end of the brush 220 can draw a hole line on the side wall of the pre-pierced pipeline 2, the pipeline cross connection lofting and line drawing device is suitable for use when the pre-connected pipeline 1 and the pre-pierced pipeline 2 form an arbitrary included angle, and has stronger applicability.

[0049] The pipeline cross connection lofting and line drawing device has the following beneficial effects:

[0050] (1) before using the brush 220, the brush 220 is fixed by the fourth fastener 240, avoiding the brush 220 from moving out of the second guide channel 211, when using the brush 220, the fourth fastener 240 is loosened by operating the fourth fastener 240, at this time, the brush 220 can slide relative to the movable seat 210, since the pre-punching pipeline 2 is curved, manually pushing the brush 220 can make the end of the brush 220 abut against the outer side wall of each part of the pre-punching pipeline 2, thereby drawing a hole line on the pre-punching pipeline 2;

[0051] (2) rotating the hand wheel 330 can drive the worm 320 to rotate, and drive the worm wheel 310 to rotate, thereby driving the rotating shaft 142 to rotate, and then driving the rotating disc 143 and the sleeve pipe 144 to rotate through the rotating shaft 142, adjusting the included angle between the sleeve pipe 144 and the pre-punching pipeline 2, so that the sleeve pipe 144 extends along the radial direction of the pre-connection pipeline 1, at this time, the sleeve pipe 144 coincides with the central axis of the pre-connection pipeline 1, that is, the positioning rod 110 coincides with the central axis of the pre-connection pipeline 1, simulating the actual inclined posture of the pre-connection pipeline 1;

[0052] (3) the pipeline cross connection lofting and line drawing device is suitable for use when the pre-connection pipeline 1 and the pre-punching pipeline 2 form an arbitrary included angle, and has stronger applicability.

[0053] The specific embodiments of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A pipeline cross connection layout and drawing device, characterized in that: include: The positioning mechanism includes a positioning rod and a scale, wherein the positioning rod extends radially along the pre-opened pipe, and the scale is perpendicular to the positioning rod and rotatably sleeved on the positioning rod; A line drawing mechanism, comprising a movable seat and a brush, wherein the movable seat is detachably fixed to the ruler, the brush is parallel to the positioning rod and slides through the movable seat, and one end of the brush is used to draw a line on the side wall of the pre-opened pipe; The driving mechanism is connected to the positioning rod and is used to drive the positioning rod to rotate so as to adjust the angle between the positioning rod and the pre-opened pipe.

2. The pipeline cross connection layout and drawing device according to claim 1, characterized in that: The positioning mechanism also includes two fixed seats and a rotating seat, the two fixed seats are arranged opposite to each other and at intervals, the rotating seat is arranged between the two fixed seats and is rotatably connected to the two fixed seats, a first guide channel is opened on the rotating seat, the two fixed seats are used to be detachably fixed to the pre-opening pipe, and the first guide channel extends radially along the pre-opening pipe, the positioning rod passes through the first guide channel, and is detachably fixed to the rotating seat, the driving mechanism is connected to the rotating seat, and is used to drive the rotating seat to rotate so as to adjust the angle between the first guide channel and the pre-opening pipe.

3. The pipeline cross connection layout and drawing device according to claim 2, characterized in that: The rotating seat includes a rotating shaft, a rotating disk and a sleeve. The two ends of the rotating shaft are respectively rotatably connected to the two fixed seats. The rotating disk is sleeved on the rotating shaft and is detachably fixed to the rotating shaft. The sleeve is perpendicular to the rotating shaft and is fixed to the rotating disk. The first guide channel is formed in the sleeve. The driving mechanism is connected to one end of the rotating shaft to drive the rotating shaft to rotate so as to adjust the angle between the sleeve and the pre-opened pipe.

4. The pipeline cross connection layout and drawing device according to claim 3, characterized in that: The positioning mechanism further includes a first fastener, one end of which is detachably fixed to the sleeve, and the other end of which is used to tighten or loosen the positioning rod.

5. The pipeline cross connection layout and drawing device according to claim 3, characterized in that: The driving mechanism includes a worm wheel, a worm and a handwheel. The worm wheel is sleeved on one end of the rotating shaft and is detachably fixed to the rotating shaft. The worm is perpendicular to the rotating shaft and meshes with the worm wheel. The handwheel is fixed to the end of the worm.

6. The pipeline cross connection layout and drawing device according to claim 1, characterized in that: The positioning mechanism further comprises a shaft sleeve, which is sleeved on the positioning rod and detachably fixed to the positioning rod. One end of the scale is rotatably sleeved on the shaft sleeve.

7. The pipeline cross connection layout and drawing device according to claim 6, characterized in that: The positioning mechanism further includes a second fastener, one end of which is detachably fixed to the shaft sleeve, and the other end of the second fastener is used to tighten or loosen the positioning rod.

8. The pipeline cross connection layout and drawing device according to claim 1, characterized in that: The movable seat is slidably sleeved on the ruler, and the marking mechanism further includes a third fastener, one end of which is detachably fixed to the movable seat, and the other end of the third fastener is used to tighten or loosen the ruler.

9. The pipeline cross connection layout and drawing device according to claim 1, characterized in that: A second guide channel is provided on the movable seat, the second guide channel is parallel to the positioning rod, and the paintbrush passes through the second guide channel.

10. The pipeline cross connection layout and drawing device according to claim 9, characterized in that: The line drawing mechanism further includes a fourth fastener, one end of which is detachably fixed to the movable seat, and the other end of which is used to tighten or loosen the paintbrush.

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