Pipeline hole digging three-way hole opening auxiliary device

Abstract

The utility model discloses a pipeline hole digging three-way trepanning auxiliary device, a pipeline comprises a horizontally arranged first pipeline and a second pipeline, the end portion of the second pipeline abuts against the peripheral face of the first pipeline, a set angle is formed between the axis of the second pipeline and the axis of the first pipeline, and the trepanning auxiliary device is arranged on the peripheral face of the second pipeline in a sleeved mode. Comprising a clamping seat strip and a plurality of positioning rods and can be matched with the clamping seat strip through the positioning rods, the radian matched with the peripheral face of a first pipeline is rapidly formed, repeated trial and error modification is not needed, the butt joint preparation workload is reduced, the butt joint speed is increased, the operation efficiency is improved, and meanwhile the formed radian is high in quality; according to the three-way joint, the first pipeline and the second pipeline can be in high fit with the peripheral face of the first pipeline, accurate alignment can be achieved in the butt joint process of the second pipelines, later compensation is not needed, and the attaching tightness and the strength after the three-way joint is connected and formed cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline construction, in particular to a pipeline eyelet tee hole opening auxiliary device. Background Art

[0002] In current electromechanical piping installation, when the branch pipe diameter is ≤1 / 2 the main pipe diameter, a cutout tee is often used to connect the main and branch pipes. During the cutout tee drilling operation, construction workers typically use an on-site trial-and-error method. This involves repeatedly observing and comparing the cutting and polishing process to achieve the final shape and fit for installation.

[0003] However, in actual work, the above operation method still has limitations, as follows:

[0004] Because the process requires repeated trial and error to modify the forming method, the docking preparation work is very heavy and inefficient, and it is difficult to ensure the final tightness of the fit and the strength and forming angle of the tee connection after forming. For example, the cutting and grinding method based on observation and comparison requires a high level of operator experience. Once the operation is wrong, it is easy to cause the curvature to be insufficient or too large. Insufficient curvature can be corrected by multiple grinding methods, but this operation is inefficient. For large curvatures, it is mostly compensated by subsequent welding, but this operation cannot guarantee the tightness of the final fit and the strength of the tee connection after forming.

[0005] Therefore, how to solve the above-mentioned deficiencies in the prior art has become the subject to be studied and solved in this utility model. Utility Model Content

[0006] The utility model provides a pipeline eyelet tee hole opening auxiliary device, which aims to solve the technical problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the technical solution adopted by the present invention is: a pipe of a pipe eyelet tee opening auxiliary device, comprising a horizontally arranged first pipe and a second pipe whose end portion abuts against the outer peripheral surface of the first pipe, wherein the axis of the second pipe is arranged at a set angle to the axis of the first pipe, and the opening auxiliary device is sleeved on the outer peripheral surface of the second pipe, comprising a seat strip and a plurality of positioning rods;

[0008] The seat strip is annularly positioned on the outer circumference of the second pipe. When viewed from the cross section of the second pipe, the seat strip covers at least half of the circumference of the second pipe, and the center line of the covered area is parallel to the axis of the first pipe.

[0009] A plurality of positioning grooves are provided on the surface of the seat strip, and the length direction of each positioning groove is parallel to the axial direction of the second pipe; each positioning rod is slidably embedded in each positioning groove one by one, so that all positioning rods are combined to form an annular structure covering the outer circumference of the second pipe; the end of each positioning rod in the annular structure is fitted with the outer circumference of the first pipe, so that the end of the annular structure forms an arc that matches the outer circumference of the first pipe.

[0010] In the above technical solution, the axis of the second pipe is set at a set angle with the axis of the first pipe. The set angle range is between 0-180, and the conventional angles are mostly 60 degrees, 90 degrees or 120 degrees.

[0011] In the above technical solution, the ring structure formed by all the positioning rods must be arranged in at least a semicircle from a cross-sectional perspective, with the centerline of the semicircle parallel to the axis of the first pipe. This ensures that the arc of the second pipe port can be formed by cutting and polishing the second pipe port to fit the first pipe. In addition to a partial encircling arrangement, a circular arrangement can also be used to encircle the entire outer circumference of the second pipe.

[0012] In the above technical solution, the number of the positioning slots is the same as the number of the positioning rods, or the number of the positioning slots may be greater than the number of the positioning rods.

[0013] In the above technical solution, the seat strip may be a sealed annular structure, or may be an unsealed structure, or may be a spiral structure wound around the second pipe.

[0014] In the above technical solution, the positioning rod can slide axially along the outer circumferential surface of the second pipe so that its end portion fits the outer circumferential surface of the first pipe.

[0015] According to a further technical solution, the width of the slot of the locking groove is smaller than the diameter of the positioning rod.

[0016] With this design, once the positioning rod is inserted into the positioning slot, it will not easily fall out of the positioning slot without the action of external force.

[0017] According to a further technical solution, a pair of latches are provided at the notch of the locking slot for limiting the positioning rod in the locking slot.

[0018] The clip is elastic. When it is embedded in the positioning rod, a radial pressure is first applied to the clip through the positioning rod, forcing the clip to deform and open. After the positioning rod enters the positioning groove, the clip returns to its pre-deformation state and locks the positioning rod.

[0019] The seat strip can preferably be made of rubber (metal material can also be selected, and it can be set according to needs during specific use). Once the positioning rod is embedded in the corresponding positioning groove, the corresponding positioning groove can be expanded so that the positioning rod is limited by the fastener.

[0020] According to a further technical solution, the seat bar and the fastener are integrally formed, thereby reducing the probability of the fastener detaching from the seat bar during long-term use.

[0021] A further technical solution is to provide a deformable layer within the retaining groove for retaining the positioning rod within the retaining groove. Compared to solutions using a latch, since the positioning rod may move with the latch when sliding, causing the latch to deform and twist, a deformable layer made of rubber can be provided within the retaining groove. The deformable layer is squeezed and deformed during the positioning rod's engagement with the retaining groove. When the positioning rod is fully inserted into the retaining groove, the deformable layer recovers its deformation and wraps around the positioning rod, securing the positioning rod in place.

[0022] According to a further technical solution, the positioning groove is provided on the inner side surface of the seat bar, and each of the positioning rods is fitted to the outer peripheral surface of the second pipe.

[0023] The positioning rod can be located on either the inner side of the base bar, close to the second pipe, or on the outer side, away from the second pipe. Since the positioning rod is located within the retaining groove and slides with the base bar, if the positioning rod is located on the outer side of the base bar, it will easily become loose during long-term sliding. However, if the retaining groove is located on the inner side of the base bar, the positioning rod can be clamped between the second pipe and the base bar, reducing the chance of the positioning rod loosening.

[0024] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.

[0025] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.

[0026] The terms “include”, “including”, “have”, etc. used in this document are open-ended terms, meaning including but not limited to.

[0027] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of the present invention, and in the specific context. Certain terms used to describe the present invention are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of the present invention.

[0028] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.

[0029] The working principle and advantages of this utility model are as follows:

[0030] The utility model can quickly form an arc that matches the outer peripheral surface of the first pipe through the cooperation of the positioning rod and the seat strip, without the need for repeated trial and error modification, so that the preparation workload for docking is reduced, the speed is increased, and the operating efficiency is improved. At the same time, the formed arc is of high quality and can be highly consistent with the outer peripheral surface of the first pipe. During the docking process of the second pipe, it can be accurately aligned without the need for subsequent compensation, and will not affect the tightness of the fit and the strength of the three-way connection after formation.

[0031] Specifically, the base strip is first wrapped around the outer circumference of the second pipe, and then each positioning rod is respectively embedded in each corresponding positioning groove, so that all the positioning rods are combined to form an annular structure and arranged on the outer circumference of the second pipe. Then, the position of each positioning rod is adjusted so that the end of each positioning rod in the annular structure is in contact with the outer circumference of the first pipe. At this time, the end of the annular structure forms an arc that matches the outer circumference of the first pipe.

[0032] The annular structure and the base strip are then moved up to the port on the second pipe where it will connect to the first. The resulting curved lines are then used to draw corresponding lines on the second pipe. The annular structure and base strip are then removed, and a cutting device is used to cut the port of the second pipe into the corresponding curved shape along the drawn curved lines. The cut second pipe is then fitted onto the surface of the first pipe, and the opening lines are drawn on the first pipe where the hole will be opened. The first pipe is cut and polished along the opening lines, and then the second and first pipes are joined together and secured by welding. This completes the installation of the eyelet tee connection.

[0033] Compared with the method of observation, comparison and coordinated cutting and polishing, the technical solution adopted in this application produces ports and holes that can cooperate with each other, with higher precision and higher operating efficiency, and the strength of the final forming can also be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Attachment Figure 1 This is a schematic diagram of the process of forming an arc that matches the outer circumference of the first pipe in the embodiment of the utility model through the auxiliary device for opening the hole;

[0035] Attachment Figure 2 This is a schematic diagram of the main structure of the latching slot in an embodiment of the present utility model;

[0036] Attachment Figure 3 This is a bottom view of the structure of the latching slot in an embodiment of the present utility model;

[0037] Attachment Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0038] Attachment Figure 5 A schematic diagram of the cross-sectional structure of the deformation layer provided in an embodiment of the present utility model;

[0039] Attachment Figure 6 A schematic diagram of the cross-sectional structure of the embodiment of the utility model when the card seat strip is arranged in a ring shape

[0040] Attachment Figure 7 This is a three-dimensional diagram of the embodiment of the present invention when the axes of the first pipe and the second pipe are 60 degrees apart;

[0041] Attachment Figure 8 This is a front view of the first pipe and the second pipe provided in an embodiment of the present invention when the axes are 60 degrees apart.

[0042] In the above figures: 1. first pipe; 2. second pipe; 3. seat bar; 4. positioning rod; 5. positioning groove; 6. notch; 7. fastener; 8. deformation layer. DETAILED DESCRIPTION

[0043] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0044] Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.

[0045] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.

[0046] See attached Figures 1-8 As shown, a pipe eyelet tee opening auxiliary device comprises a horizontally arranged first pipe 1 and a second pipe 2 whose end abuts against the outer circumference of the first pipe 1. The axis of the second pipe 2 is arranged at a set angle to the axis of the first pipe 1. The opening auxiliary device is sleeved on the outer circumference of the second pipe 2 and comprises a seat bar 3 and a plurality of positioning rods 4.

[0047] The card seat strip 3 is annularly positioned on the outer circumference of the second pipe 2. When viewed from the cross-section of the second pipe 2, the card seat strip 3 covers at least half of the circumference of the second pipe 2, and the center line of the covered area is parallel to the axis of the first pipe 1.

[0048] A plurality of positioning grooves 5 are provided on the surface of the base strip 3, and the length direction of each positioning groove 5 is parallel to the axial direction of the second pipe 2; each positioning rod 4 is slidably embedded in each positioning groove 5 one by one, so that all the positioning rods 4 are combined to form an annular structure covering the outer circumference of the second pipe 2; the end of each positioning rod 4 in the annular structure is fitted with the outer circumference of the first pipe 1, so that the end of the annular structure forms an arc that matches the outer circumference of the first pipe 1.

[0049] In the present invention, the positioning rod 4 and the seat strip 3 can cooperate to quickly form an arc that matches the outer peripheral surface of the first pipe 1, without the need for repeated trial and error modifications, thereby reducing the preparation work for docking and improving operational efficiency. At the same time, the arc formed is of high quality and can fully match the outer peripheral surface of the first pipe 1.

[0050] Specifically, the annular card seat strip 3 is wrapped around the outer circumference of the second pipe 2, and then each positioning rod 4 is respectively embedded in each card slot 5, so that all the positioning rods 4 are combined to form an annular structure and cover the outer circumference of the second pipe 2 (such as Figure 1 2), then adjust the position of each positioning rod 4. When the end of each positioning rod 4 in the annular structure is in contact with the outer circumference of the first pipe 1, the end of the annular structure forms an arc that matches the outer circumference of the first pipe 1 (such as Figure 1 3 in the .

[0051] Then move the annular structure and the card seat strip 3 up to the port on the second pipe 2 that needs to be connected to the first pipe 1 (such as Figure 1 Then, use the formed arc line to draw the corresponding line on the second pipe 2, remove the ring structure and the seat strip 3, and use the cutting equipment to cut the port circumference of the second pipe 2 into the corresponding arc shape along the drawn arc line (such as Figure 1 Then, fit the cut second pipe 2 onto the surface of the first pipe 1, draw the opening line on the first pipe 1, cut and polish the first pipe 1 along the opening line, and then connect the second pipe 2 to the first pipe 1. Then, fix the second pipe 2 and the first pipe 1 by welding. This completes the installation of the pipe eyelet tee connection.

[0052] Compared with the method of observation, comparison and coordinated cutting and polishing, the technical solution adopted in this application produces ports and holes that can cooperate with each other, with higher precision and higher operating efficiency, and the strength of the final forming can also be guaranteed.

[0053] It should be noted that: 1. The axis of the second pipe 2 is set at a set angle with the axis of the first pipe 1, and the set angle is preferably 90 degrees.

[0054] 1-1, please refer to Figure 7-Figure 8 , which shows the state when the axis of the second pipe 2 is 60 degrees to the axis of the first pipe 1. In this state, the seat strip 3 needs to cover the entire circumference of the second pipe 2.

[0055] 2. The ring structure formed by the combination of all positioning rods 4 is arranged around the outer circumference of the second pipe 2, but it is not limited to this arrangement. It can also be arranged only in the area forming the arc. Figure 1 From the main viewing angle, as long as a certain number of positioning rods 4 complete the construction of the curvature, only so many positioning rods 4 can be set. For example, the current setting is to set it around the entire outer circumference of the second pipe 2, which can be improved to only set 1 / 2 of the outer circumference. This not only saves the time for plugging in the positioning rods 4 on the other half of the outer circumference, but also achieves the purpose of determining the curvature.

[0056] 2-1. It should be noted that the more and denser the positioning rods 4 are, the more accurately the arc can be determined.

[0057] 2-2. When surrounding 1 / 2 of the outer circumference, it should be set along the axial direction of the first pipe 1.

[0058] 3. The number of the positioning slots 5 is the same as the number of the positioning rods 4 , or the number of the positioning slots 5 is greater than the number of the positioning rods 4 .

[0059] 4. The seat strip 3 can be a sealed ring structure, an unsealed ring structure, or a spiral structure wound around the second pipe 2.

[0060] 5. The positioning rod 4 can slide axially along the outer circumference of the second pipe 2, and the friction force during sliding is small, which has little impact on the seat bar.

[0061] In some specific embodiments, the width of the slot 6 of the locking slot 5 is smaller than the diameter of the positioning rod 4. With this design, after the positioning rod 4 is locked in the locking slot 5, it will not easily fall out of the locking slot 5 without the action of external force.

[0062] In some specific embodiments, a pair of latches 7 are provided at the notch 6 of the locking slot 5 for retaining the positioning rod 4 in the locking slot 5. The latches 7 are elastic. When the positioning rod 4 is inserted, radial pressure is first applied to the latches 7 by the positioning rod 4, forcing the latches 7 to deform and open. After the positioning rod 4 enters the locking slot 5, the latches 7 return to their pre-deformation state and retain the positioning rod 4.

[0063] The seat strip 3 can preferably be made of rubber (metal material can also be selected, and can be set according to needs during specific use). Once the positioning rod 4 is embedded in the corresponding positioning groove 5, the corresponding positioning groove 5 can be expanded so that the positioning rod 4 is limited by the fastener 7.

[0064] Afterwards, each positioning rod 4 is pushed to slide along the corresponding positioning groove 5 so that the annular structure (the annular structure is formed by the combination of all the positioning rods 4 ) gradually forms an arc that matches the outer circumference of the first pipe 1 .

[0065] In some specific embodiments, the card seat strip 3 and the fastener 7 are integrally formed. With this design, the probability of the fastener detaching from the card seat strip during long-term use can be reduced.

[0066] In some specific embodiments, a deformation layer 8 is provided in the locking groove 5 for limiting the positioning rod 4 in the locking groove 5 .

[0067] Compared with the scheme of the fastener 7, since the positioning rod 4 may move with the fastener 7 when sliding, causing the fastener 7 to deform and twist, a deformation layer 8 made of rubber material can be set in the positioning groove 5. In the process of the positioning rod 4 being clamped into the positioning groove 5, the deformation layer 8 is squeezed and deformed. When the positioning rod 4 completely enters the positioning groove 5, the deformation layer 8 restores the deformation and wraps the positioning rod 4, so that the positioning rod 4 is limited.

[0068] Since the positioning rod 4 may move with the fastener 7 when sliding, causing the fastener 7 to deform, the seat bar 3 is made of metal and the deformation layer 8 is made of rubber. With this design, the seat bar 3 provides strength support for the deformation layer 8, and the deformation layer 8 wraps the positioning rod 4 through deformation, so that the positioning rod 4 is restricted.

[0069] Specifically, the longitudinal section of the latching slot 5 is C-shaped (from Figure 5 As can be seen), the positioning groove 5 is arranged on the inner side of the annular base strip 3, so the positioning rod 4 is between the base strip 3 and the second pipe 2. When the positioning rod 4 is pressed against the C-shaped opening of the positioning groove 5, the deformation layer 8 will be pushed and compressed by the positioning rod 4, but the base strip 3 will not be deformed because it is made of metal.

[0070] As pressure continues to be applied to the positioning rod 4, the deformation layer 8 at the C-shaped opening of the locking groove 5 will be compressed, so that the positioning rod 4 will be locked into the locking groove 5. When the positioning rod 4 enters, the deformation layer 8 will be compressed, so that the positioning rod 4 is firmly fixed. In this case, when the positioning rod 4 is pushed up and down along the locking groove 5, the positioning rod 4 will stop at a certain place when it slides to a certain place. At the same time, during the up and down sliding process, the positioning rod 4 will not move with the deformation layer 8, thereby bending and deforming.

[0071] In some specific embodiments, the positioning grooves 5 are provided on the inner side of the seat bar 3 , and each positioning rod 4 is attached to the outer peripheral surface of the second pipe 2 .

[0072] The positioning rod 4 can be arranged on the inner side of the card seat strip 3 close to the second pipe 2, or on the outer side away from the second pipe 2 ( Figures 1-8 (The figure shows the positioning rod 4 being arranged on the outside of the base strip 3 away from the second pipe 2; the figure showing the positioning rod 4 being arranged on the inside of the base strip 3 is not shown.) Since the positioning rod 4 is located in the retaining groove 5 and slides with the base strip 3, if the positioning rod 4 is on the outside of the base strip 3, it will easily become loose during long-term sliding. However, if the retaining groove 5 is arranged on the inside of the base strip 3, the positioning rod 4 can be clamped between the second pipe 2 and the base strip 3, reducing the chance of the positioning rod 4 loosening.

[0073] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A pipe eyelet tee hole opening auxiliary device, the pipe comprising a first pipe (1) arranged horizontally and a second pipe (2) whose end portion abuts against the outer peripheral surface of the first pipe (1), the axis of the second pipe (2) being arranged at a set angle to the axis of the first pipe (1), characterized in that: The hole opening auxiliary device is sleeved on the outer peripheral surface of the second pipe (2), and includes a seat strip (3) and a plurality of positioning rods (4); The seat strip (3) is annularly positioned on the outer circumference of the second pipe (2); when viewed from the cross-section of the second pipe (2), the seat strip (3) covers at least half of the circumference of the second pipe (2), and the center line of the covered area is parallel to the axis of the first pipe (1); A plurality of positioning grooves (5) are provided on the surface of the seat bar (3), and the length direction of each positioning groove (5) is parallel to the axial direction of the second pipe (2); each positioning rod (4) is slidably embedded in each positioning groove (5) so that all positioning rods (4) are combined to form an annular structure covering the outer peripheral surface of the second pipe (2); the end of each positioning rod (4) in the annular structure is in contact with the outer peripheral surface of the first pipe (1), so that the end of the annular structure forms an arc that matches the outer peripheral surface of the first pipe (1).

2. The pipeline hole-digging tee opening auxiliary device according to claim 1 is characterized in that: The width of the notch (6) of the positioning slot (5) is smaller than the diameter of the positioning rod (4).

3. The pipeline hole-digging tee opening auxiliary device according to claim 1 or 2, characterized in that: A pair of latches (7) for retaining the positioning rod (4) in the locking slot (5) are provided at the notch (6) of the locking slot (5).

4. The pipeline hole-digging tee opening auxiliary device according to claim 3 is characterized in that: The card seat strip (3) and the fastener (7) are integrally formed.

5. The pipeline hole-digging tee opening auxiliary device according to claim 1, characterized in that: The locking groove (5) is provided with a deformation layer (8) for limiting the positioning rod (4) in the locking groove (5).

6. The pipeline hole-digging tee opening auxiliary device according to claim 1, characterized in that: The positioning groove (5) is arranged on the inner side surface of the seat bar (3), and each positioning rod (4) is fitted on the outer peripheral surface of the second pipe (2).

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