阅读说明：本技术 克拉管电热熔连接装置及方法 (Clar pipe electric hot melting connecting device and method ) 是由 陈海林 邓泊松 李远祥 王斐 李科 张志阳 许翰 雷然 赵安昀 于 2021-08-04 设计创作，主要内容包括：一种克拉管电热熔连接装置及方法,它包括调节臂、夹持件和驱动机构,通过在夹持件的两端分别设置两个夹持件,夹持件的连板分别与调节臂的左臂和右臂连接,驱动机构的齿条和齿轮分别与调节臂的左臂和右臂连接,通过夹持件的两个半圆形弧板组成圆形夹持环夹持两个克拉管相互靠近的两端,通过驱动机构驱动左臂和右臂带动两个夹持件相互靠近或远离,焊接过程中有利于克拉管端头材料充分熔合,提高焊接质量,避免漏点造成后期补焊,有利于提高施工效率,操作简单方便。(The utility model provides a carat pipe electrothermal welding connecting device and method, it includes the regulating arm, holder and actuating mechanism, through set up two holders respectively at the both ends of holder, the even board of holder is connected with the left arm and the right arm of regulating arm respectively, actuating mechanism's rack and gear are connected with the left arm and the right arm of regulating arm respectively, constitute circular centre gripping ring centre gripping two carat pipes both ends that are close to each other through two semi-circular arc boards of holder, drive two holders through actuating mechanism drive left arm and right arm and be close to each other or keep away from, be favorable to carat pipe end material to fuse fully in the welding process, improve welding quality, avoid the leak source to cause later stage repair welding, be favorable to improving the efficiency of construction, easy operation is convenient.)

1. A carat pipe electric hot melt connecting device is characterized in that: the device comprises an adjusting arm (1), a clamping piece (2) and a driving mechanism (3); the connecting plate (23) of the clamping piece (2) is connected with the left arm (11) and the right arm (12) of the adjusting arm (1) respectively, the left arm (11) and the right arm (12) of the adjusting arm (1) are in sliding fit with each other, two semicircular arc plates (21) of the clamping piece (2) form a circular clamping ring, the circular clamping ring is located on the lower portion of the adjusting arm (1), a rack (31) and a gear (32) of the driving mechanism (3) are connected with the left arm (11) and the right arm (12) of the adjusting arm (1) respectively, and the driving mechanism (3) drives the two clamping pieces (2) to be close to or far away from each other.

2. The carat pipe electrofusion coupling device of claim 1, wherein: the adjusting arm (1) comprises a U-shaped structure formed by a left arm (11) and a right arm (12) and provided with a downward opening, and a slider (13) penetrates through the left arm (11) and the right arm (12) to be in sliding fit with the left arm and the right arm.

3. The carat pipe electrofusion coupling device of claim 1, wherein: left arm (11) and right arm (12) are right angle arms, and its cross section is the rectangle structure, and one side of left arm (11) and right arm (12) all sets up spout (14), and slide opening (15) are located spout (14) and run through left arm (11) and right arm (12).

4. The carat pipe electrofusion coupling device of claim 2, wherein: the sliding piece (13) comprises sliding blocks connected with two ends of a sliding shaft, the sliding shaft is matched with the sliding hole (15), and the sliding blocks are in sliding fit with the sliding grooves (14).

5. The Krah pipe electrothermal welding connection device of claim 3, wherein: the horizontal section of the right arm (12) is provided with scales (16) corresponding to the end of the horizontal section of the left arm (11).

6. The carat pipe electrofusion coupling device of claim 1, wherein: the open ends of the two semicircular arc plates (21) of the clamping piece (2) are provided with ear plates (22), the fastener penetrates through the ear plates (22) to be fixedly connected, and the outer wall of one semicircular arc plate (21) is radially connected with a connecting plate (23).

7. The carat pipe electrofusion coupling device of claim 1, wherein: the connecting plate (23) is a clamping groove formed by two flat plates, the ends of the left arm (11) and the right arm (12) are positioned in the clamping groove, and the fastening piece penetrates through the clamping groove to be fixedly connected.

8. The carat pipe electrofusion coupling device of claim 1, wherein: the driving mechanism (3) comprises a gear (32) meshed with the rack (31), and a gear shaft (33) is connected with the gear (32) and a hand wheel (34).

9. The method for constructing an electrothermal welding connection device of Krah pipe as claimed in any one of claims 1 to 8, which comprises the steps of:

s1, processing a foundation, excavating a foundation trench by using an excavator, and tamping or pouring the bottom of the foundation trench;

s2, placing the pipes, namely placing the Krah pipes in the base groove, wherein the ends of every two Krah pipes are close to each other;

s3, installing clamping pieces, clamping the semicircular arc plates (21) of the two clamping pieces (2) at the end heads of two adjacent carats in sequence, and connecting and fixing the fasteners through the lug plates (22); at the moment, the connecting plates (23) on the two clamping pieces (2) face upwards;

s4, mounting an adjusting arm, respectively inserting the end heads of the vertical ends of the left arm (11) and the right arm (12) of the adjusting arm (1) into the clamping grooves of the two connecting plates (23), and connecting and locking the end heads by fasteners; if an error occurs in the insertion and matching process, the hand wheel (34) is rotated to drive the left arm (11) and the right arm (12) to slide mutually to adjust the error;

s5, butting, namely, rotating a hand wheel (34) to drive a left arm (11) and a right arm (12) to move relatively to drive two Krah pipes to approach each other, stopping when the end surfaces of the two Krah pipes contact each other, and recording the initial scale value of the end of the left arm (11) corresponding to the scale (16);

s6, welding, namely welding the contact positions of the two carat pipe end faces by using an electric fusion welding machine; before welding, an electrode at the end of the Krah pipe needs to be connected with an electric fusion welding machine, and the welding time is set;

s7, adjusting during welding, in S6, when the set welding time reaches half of the set welding time, under the state of no stop, the rotating hand wheel (34) drives the left arm (11) and the right arm (12) to move relatively to drive the two Krah pipes to approach each other again, and when the set value of the two Krah pipes approaches again, the two Krah pipes stop; adding and adjusting the set value of the two Krah pipes which are close to each other again on the basis of the primary scale value;

and S8, stopping the electric fusion welding machine when the welding time reaches the set welding time, and cooling the part to be welded and then dismantling the part.

Technical Field

The invention belongs to the technical field of marine foundation protection, and relates to a Krah pipe electric hot melting connecting device and method.

Background

The Krah pipe is a high-density polyethylene structural wall pipe formed by hot winding, high-density polyethylene resin is used as a main raw material, a hot winding poplar type process is adopted, and a polypropylene (PP) single-wall corrugated pipe is used as a supporting structure to manufacture the special structural wall pipe with higher external pressure resistance. The pipe has excellent installation performance and better flexibility, and can bear a certain amount of axial line deflection and relative angular deflection. The environment-friendly safe product has the advantages of light weight, strong bearing capacity, high interface quality, long service life, corrosion resistance, high ring stiffness, convenience in construction and the like, and is widely applied to projects of urban water supply, drainage, remote water delivery, irrigation and water conservancy irrigation and the like.

The carat pipe standard length generally supplies the material for 6m or 9m, and the pipeline connected mode generally is the electric heat fusion and connects, and the electric heat fusion principle utilizes the electric fusion welding machine to supply with electricity for the inlayed heating wire circular telegram of electric smelting pipe fitting inner wall to make the heating wire produce the fuel factor, heat energy heats and fuses the PE material of tubular product pipe fitting contact surface, thereby accomplishes welding process once, and applys appropriate pressure, alright firmly melt as an organic whole after the cooling. The existing construction technology is to butt joint and position the bell and spigot joints of the pipelines at two sides, tension the butted pipelines through braces or manual hoists and the like, and electrify and heat the electric heating wires of the pipelines by using an electric fusion welding machine to fuse the pipes at two sides together. The construction method can not judge whether the fusion of the pipe is sufficient after the pipe is electrified, the welding quality of the pipe can not be ensured when the pipe is sufficiently welded according to experience, and the subsequent water-closing test has the defects of more leakage points, rework repair welding and influence on the construction efficiency.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a Kelatte tube electric hot melting connecting device and a Kelatte tube electric hot melting connecting method, which are simple in structure, two clamping pieces are respectively arranged at two ends of each clamping piece, connecting plates of the clamping pieces are respectively connected with a left arm and a right arm of an adjusting arm, a rack and a gear of a driving mechanism are respectively connected with the left arm and the right arm of the adjusting arm, two semicircular arc plates of the clamping pieces form a circular clamping ring to clamp two ends of two Kelatte tubes close to each other, the driving mechanism drives the left arm and the right arm to drive the two clamping pieces to close to or far away from each other, the welding process is favorable for fully fusing Kelatte tube end materials, the welding quality is improved, later repair welding caused by leakage points is avoided, the construction efficiency is favorably improved, and the operation is simple and convenient.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a Krah pipe electric hot melting connecting device comprises an adjusting arm, a clamping piece and a driving mechanism; the connecting plate of the clamping piece is connected with the left arm and the right arm of the adjusting arm respectively, the left arm and the right arm of the adjusting arm are in sliding fit with each other, two semicircular arc plates of the clamping piece form a circular clamping ring, the circular clamping ring is located on the lower portion of the adjusting arm, a rack and a gear of the driving mechanism are connected with the left arm and the right arm of the adjusting arm respectively, and the driving mechanism drives the two clamping pieces to be close to or far away from each other.

The adjusting arm comprises a U-shaped structure with a downward opening, the U-shaped structure is composed of a left arm and a right arm, and the slider penetrates through the left arm and the right arm to be in sliding fit with the left arm and the right arm.

The left arm and the right arm are right-angle arms, the cross sections of the left arm and the right arm are rectangular structures, sliding grooves are formed in one sides of the left arm and the right arm, and sliding holes are located in the sliding grooves and penetrate through the left arm and the right arm.

The slider comprises sliders connected with two ends of a sliding shaft, the sliding shaft is matched with the sliding hole, and the sliders are in sliding fit with the sliding grooves.

And the horizontal section of the right arm is provided with scales corresponding to the end head of the horizontal section of the left arm.

The open ends of the two semicircular arc plates of the clamping piece are provided with lug plates, the fastening piece penetrates through the lug plates to be fixedly connected, and the outer wall of one semicircular arc plate is radially connected with a connecting plate.

The connecting plate is a clamping groove formed by two flat plates, the ends of the left arm and the right arm are positioned in the clamping groove, and the fastening piece penetrates through the clamping groove to be fixedly connected.

The driving mechanism comprises a gear meshed with the rack, and the gear shaft is connected with the gear and the hand wheel.

The construction method of the Clar pipe electric hot melt connecting device comprises the following steps:

s1, processing a foundation, excavating a foundation trench by using an excavator, and tamping or pouring the bottom of the foundation trench;

s2, placing the pipes, namely placing the Krah pipes in the base groove, wherein the ends of every two Krah pipes are close to each other;

s3, installing clamping pieces, clamping the semicircular arc plates of the two clamping pieces at the end heads of two adjacent krah pipes in sequence, and connecting and fixing the fastening pieces through the lug plates; the connecting plates on the two clamping pieces face upwards;

s4, mounting an adjusting arm, respectively inserting the end heads of the vertical ends of the left arm and the right arm of the adjusting arm into the clamping grooves of the two connecting plates, and connecting and locking the end heads by a fastening piece; if an error occurs in the insertion matching process, the left arm and the right arm are driven by the rotary hand wheel to slide mutually to adjust the error;

s5, butting, driving the left arm and the right arm to move relatively by a rotating hand wheel to drive the two Krah pipes to approach each other, stopping when the end surfaces of the two Krah pipes contact each other, and recording the primary scale value of the end head of the left arm corresponding to the scale at the moment;

s6, welding, namely welding the contact positions of the two carat pipe end faces by using an electric fusion welding machine; before welding, an electrode at the end of the Krah pipe needs to be connected with an electric fusion welding machine, and the welding time is set;

s7, adjusting during welding, wherein in S6, when the set welding time reaches half of the set welding time, the rotating hand wheel drives the left arm and the right arm to move relatively to drive the two Krah pipes to approach each other again without stopping, and when the set welding time reaches a set value of approaching again, the rotating hand wheel stops; adding and adjusting the set value of the two Krah pipes which are close to each other again on the basis of the primary scale value;

and S8, stopping the electric fusion welding machine when the welding time reaches the set welding time, and cooling the part to be welded and then dismantling the part.

The beneficial effects of the invention are mainly embodied in that:

the left arm and the right arm of the adjusting arm are connected by the sliding piece and are limited, so that the distance between the clamping pieces at two ends can be adjusted conveniently, and therefore the two carat pipes are in mutual contact and keep a stable welding state.

When being in the fuse state in the welding process of carat pipe, actuating mechanism drive left arm and right arm relative motion drive carat pipe further near at the welding process, form tensile force welding state, avoid appearing the leak source among the welding process.

Two carat pipes weld under the steady state of holder centre gripping, improve welding process's stability, reduce the influence that the human factor caused welding quality.

The clamping piece and the adjusting arm are of a fastener connecting structure, so that the clamping piece with different sizes can be replaced at any time, the pipe clamping device is suitable for carats with different diameters, and the adaptability is good.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view at a-a of fig. 1.

FIG. 3 is a top view of the adjustment arm of the present invention.

Fig. 4 is an enlarged schematic view of fig. 1 at B.

Fig. 5 is a schematic cross-sectional view at C-C of fig. 4.

In the figure: the adjusting mechanism comprises an adjusting arm 1, a left arm 11, a right arm 12, a slider 13, a sliding chute 14, a sliding hole 15, a scale 16, a clamping piece 2, a semicircular arc plate 21, an ear plate 22, a connecting plate 23, a driving mechanism 3, a rack 31, a gear 32, a gear shaft 33 and a hand wheel 34.

Detailed Description

As shown in fig. 1 to 5, an electric hot melt connection device for krah pipe includes an adjusting arm 1, a clamping member 2 and a driving mechanism 3; the connecting plate 23 of the clamping piece 2 is respectively connected with the left arm 11 and the right arm 12 of the adjusting arm 1, the left arm 11 and the right arm 12 of the adjusting arm 1 are in sliding fit with each other, the two semicircular arc plates 21 of the clamping piece 2 form a circular clamping ring, the circular clamping ring is located on the lower portion of the adjusting arm 1, the rack 31 and the gear 32 of the driving mechanism 3 are respectively connected with the left arm 11 and the right arm 12 of the adjusting arm 1, and the driving mechanism 3 drives the two clamping pieces 2 to be close to or far away from each other. Simple structure, during the use, two holders 2 are the both ends of two carats pipes of centre gripping respectively, and two holders 2 of drive of 3 drive left arms 11 and the 12 relative motion of right arm are close to each other, make two carat pipe end welds and be in molten state and form the tensile force, carry out fusion welding under tensile force state, avoid the leak source, improve welding quality, easy operation is convenient, laborsaving, and stability is good during the welding.

In a preferred scheme, the adjusting arm 1 comprises a U-shaped structure with a downward opening formed by a left arm 11 and a right arm 12, and a sliding piece 13 penetrates through the left arm 11 and the right arm 12 to be in sliding fit with the left arm 11 and the right arm 12. The structure is simple, and when the device is used, the slider 13 limits the left arm 11 and the right arm 12 in the process of sliding mutually.

In a preferred scheme, the left arm 11 and the right arm 12 are right-angle arms, the cross sections of the left arm 11 and the right arm 12 are rectangular structures, sliding grooves 14 are formed in one sides of the left arm 11 and the right arm 12, and sliding holes 15 are located in the sliding grooves 14 and penetrate through the left arm 11 and the right arm 12. Simple structure, during the use, left arm 11 and right arm 12's cross section all are the rectangle structure, and during the slip, by slider 13 spacing back, left arm 11 wherein a side sliding contact with a side of right arm 12 improves the stability when sliding.

In a preferred scheme, the sliding piece 13 comprises a sliding block connected with two ends of a sliding shaft, the sliding shaft is matched with the sliding hole 15, and the sliding block is in sliding fit with the sliding groove 14. The structure is simple, when the sliding device is used, the sliding block of the sliding piece 13 is positioned in the sliding groove 14 of the left arm 11 and the right arm 12, the sliding direction of the left arm 11 and the sliding direction of the right arm 12 are limited, meanwhile, the gap between the left arm 11 and the right arm 12 in contact is limited through the length of the sliding shaft, and the sliding stability of the sliding device is improved.

In a preferable scheme, a scale 16 is arranged on the horizontal section of the right arm 12 and corresponds to the end of the horizontal section of the left arm 11. Simple structure, during the use, at the mutual gliding in-process of left arm 11 and right arm 12, the end of left arm 11 corresponds with the scale 16 on the right arm 12, is convenient for accurately adjust the sliding distance of left arm 11 and right arm 12.

In a preferable scheme, the open ends of the two semicircular arc plates 21 of the clamping piece 2 are provided with lug plates 22, the fastening piece penetrates through the lug plates 22 to be connected and fixed, and the outer wall of one semicircular arc plate 21 is radially connected with a connecting plate 23. Simple structure during the use, adopts two semi-circular arc boards 21 to constitute ring shape structure's holder 2, and during the combination, the fastener passes otic placode 22 and connects fixedly, and the installation is dismantled conveniently, the reuse of being convenient for.

In a preferred scheme, the connecting plate 23 is a clamping groove formed by two flat plates, the ends of the left arm 11 and the right arm 12 are positioned in the clamping groove, and the fastening piece penetrates through the clamping groove to be fixedly connected. Simple structure, during the use, even board 23 is the draw-in groove structure, and the end disect insertion of the left arm 11 of being convenient for and right arm 12 passes the draw-in groove by the fastener after inserting and connects fixedly, connects convenient and fast.

Preferably, at least two through holes are formed in one connecting plate 23, and the connecting structure formed by two fasteners is beneficial to improving the stability during connection.

In a preferred embodiment, the driving mechanism 3 includes a gear 32 engaged with the rack 31, and a gear shaft 33 is connected with the gear 32 and a handwheel 34. Simple structure, during the use, rotatory hand wheel 34 drive gear shaft 33 rotatory, and gear shaft 33 drives gear 32 rotatory, and gear 32 rotation drive rack 31 rectilinear motion, and right arm 12 connected with rack 31 moves along with its synchronization.

In a preferred embodiment, the construction method of the carat pipe electric hot melt connection device includes the following steps:

s1, processing a foundation, excavating a foundation trench by using an excavator, and tamping or pouring the bottom of the foundation trench;

s2, placing the pipes, namely placing the Krah pipes in the base groove, wherein the ends of every two Krah pipes are close to each other;

s3, installing clamping pieces, clamping the semicircular arc plates 21 of the two clamping pieces 2 at the end heads of two adjacent krah pipes in sequence, and connecting and fixing the fasteners through the lug plates 22; the connecting plates 23 on the two clamping pieces 2 are upward;

s4, mounting an adjusting arm, respectively inserting the vertical ends of the left arm 11 and the right arm 12 of the adjusting arm 1 into the clamping grooves of the two connecting plates 23, and connecting and locking the ends by fasteners; if an error occurs in the insertion and matching process, the hand wheel 34 is rotated to drive the left arm 11 and the right arm 12 to slide mutually to adjust the error;

s5, butting, namely, rotating the hand wheel 34 to drive the left arm 11 and the right arm 12 to move relatively to drive the two carats to approach each other, stopping when the end surfaces of the two carats contact each other, and recording the initial scale value of the end of the left arm 11 corresponding to the scale 16;

s6, welding, namely welding the contact positions of the two carat pipe end faces by using an electric fusion welding machine; before welding, an electrode at the end of the Krah pipe needs to be connected with an electric fusion welding machine, and the welding time is set;

s7, adjusting during welding, in S6, when the set welding time reaches half of the set welding time, under the state of no stop, the rotating handwheel 34 drives the left arm 11 and the right arm 12 to move relatively to drive the two krah tubes to approach each other again, and when the set value of the approaching again is reached, the operation is stopped; adding and adjusting the set value of the two Krah pipes which are close to each other again on the basis of the primary scale value;

and S8, stopping the electric fusion welding machine when the welding time reaches the set welding time, and cooling the part to be welded and then dismantling the part. The method is simple and convenient to operate, the two ends of the two carat pipes are clamped by the two clamping pieces 2, the stability during welding is improved, the two carat pipes are welded in a tensile force state when the welding surfaces of the two carat pipes are in a molten state, leakage points are avoided, and the welding quality is improved.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.