CN217762344U - Pipeline pretreatment die filling device - Google Patents

Abstract

The utility model discloses a pipeline preliminary treatment die-filling ware, include: the rear end of the fixed die is provided with an opening, and a plurality of outer oblique wedge blocks are arranged in the fixed die; the movable die is positioned at the rear side of the fixed die and comprises a push plate and a plurality of inner wedge blocks, the inner wedge blocks are respectively in sliding connection along different radiuses of the push plate, and the inner wedge blocks are matched with the outer wedge blocks to realize radial movement of the inner wedge blocks; the movable mechanism is used for adjusting the relative position between the movable mold and the fixed mold; pipeline support piece, but it is equipped with the steel mould of elasticity expansion, and the one end of steel mould is equipped with interior tooth section, and the other one end of steel mould is equipped with the outer tooth section that can with the mutual joint of inner tooth section, and outside the tapered wedge including pipeline support piece cover was established, the external diameter of push pedal is not less than the internal diameter of steel mould. Because the pipeline supporting piece only contacts with any one pipeline supporting piece in the moving process, and the contact surfaces of the pipeline supporting piece and the pipeline supporting piece are smooth surfaces, the friction force between the pipeline supporting piece and the pipeline supporting piece is far smaller than that of the prior art, so that the pipeline supporting pieces are prevented from being stuck in the underground passage.

Description

Pipeline pretreatment die filling device

Technical Field

The utility model relates to a non-excavation pipeline construction field, in particular to pipeline preliminary treatment die filling ware.

Background

The pipeline traction construction method is a non-excavation construction method, firstly, an underground passage for burying a pipeline needs to be drilled through a traction pipe drilling machine, and then, a drill bit with gradually increasing size is used for reaming the underground passage.

After the underground passage is opened, in order to avoid collapse, the underground passage needs to be reinforced by using a steel die, the length of the existing steel die is generally within one meter, and construction teams need to feed the steel die into the underground passage section by section to form a supporting template capable of covering the whole underground passage. However, because the outer peripheral surface of the steel die has a large friction coefficient with the soil layer, when the steel die reaches a certain number, the friction force of all the steel dies and the soil layer is superposed together to generate huge damping, so that the supporting template is easily clamped in the underground passage and cannot smoothly complete construction. To this end, there is a need for improvements to existing construction equipment to reduce the damping of the support form within the underpass.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pipeline preliminary treatment die-filling ware to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

According to the utility model discloses a pipeline preliminary treatment die-filling ware of first aspect embodiment, include:

the fixed die is provided with an opening at the rear end, the front end of the fixed die is used for being connected with a transfer case of a drill bit, a die cavity is formed in the fixed die, a plurality of outer tapered wedges are arranged in the die cavity, and the sizes of the outer tapered wedges are gradually decreased from front to back;

the movable die is positioned at the rear side of the fixed die and comprises a push plate and a plurality of inner wedge blocks, the inner wedge blocks are respectively in sliding connection along different radiuses of the push plate, and the inner wedge blocks are matched with the outer wedge blocks to realize radial movement of the inner wedge blocks;

the movable mechanism is used for adjusting the relative position between the movable mold and the fixed mold;

pipeline support piece, it includes elastic shrinkage area and a plurality of steel mould lamella, and all steel mould lamellas make up jointly into the tubulose steel mould of circle, the outer peripheral face of steel mould is equipped with the recess that sets up along circumference, elastic shrinkage area is located in the recess, the one end of steel mould is equipped with interior tooth section, the other one end of steel mould be equipped with can with the external tooth section of the mutual joint of internal tooth section, pipeline support piece cover is established outside the interior tapered wedge, the external diameter of push pedal is not less than the internal diameter of steel mould.

According to the utility model discloses pipeline preliminary treatment die filling ware has following beneficial effect at least: because the pipeline supporting piece is formed by assembling the elastic contraction band and the plurality of steel mould halves, the pipeline supporting piece can be expanded from inside to outside or contracted and restored from outside to inside, when the underground passage needs to be reinforced, a constructor firstly places the fixed mould connected with the drill bit into the underground passage, the opening of the fixed mould faces the inlet of the underground passage, then the pipeline supporting piece is fixed at the inlet of the underground passage, then the second pipeline supporting piece is sleeved on the movable mould, the constructor moves the movable mould and the second pipeline supporting piece towards the fixed mould through the movable mechanism, in the process, the second pipeline supporting piece is expanded and passes through the first pipeline supporting piece and then moves towards the direction of the fixed mould, and when the inner inclined wedge block gradually moves to the outer inclined wedge block, the size of the movable die is gradually increased to prop open a second pipeline supporting piece, so that the two pipeline supporting pieces can be clamped with each other through the outer tooth section and the inner tooth section, then a constructor moves the movable die out of the hole of the underground passage through the movable mechanism, when the movable die is moved out of the underground passage, the constructor continuously sleeves a third pipeline supporting piece on the movable die and drives the third pipeline supporting piece sleeve to sequentially pass through the first pipeline supporting piece and the second pipeline supporting piece, when the third pipeline supporting piece is positioned in the second pipeline supporting piece, the constructor starts the traction pipe drilling machine to drive the drill bit to move forwards in the underground passage for a certain distance, so that the fixed die leaves the second pipeline supporting piece, and finally the constructor carries out related operations again, so that the third pipeline supporting piece and the second pipeline supporting piece are clamped with each other, and so on until the underpass is covered by a plurality of said pipe supports; compared with the prior art, the pipeline supporting piece is only contacted with any one pipeline supporting piece in the moving process, and the contact surfaces of the pipeline supporting piece and the pipeline supporting piece are smooth surfaces, so that the friction force between the pipeline supporting piece and the pipeline supporting piece is far smaller than the total friction force between the pipeline supporting piece and the soil layer, the pipeline supporting pieces are prevented from being clamped in an underground passage, and the construction difficulty of the supporting template is greatly reduced.

According to some embodiments of the utility model, the movable mechanism includes fixed pulley, first haulage rope and second haulage rope, the fixed pulley is installed the inside of die cavity, the one end fixed connection of first haulage rope is in the front portion of movable mould, first haulage rope is walked around the fixed pulley and runs through to backward in the past the push pedal, the one end fixed connection of second haulage rope is in the rear end of push pedal. When constructors pull the first traction ropes, the movable mold moves towards the fixed mold, and when constructors pull the second traction ropes, the movable mold moves towards the direction opposite to the fixed mold.

According to the utility model discloses a some embodiments, it is a plurality of outer tapered wedge encircles the center circumference of cover half is arranged, every adjacent two the equal interval of outer tapered wedge sets up for be formed with the constant head tank jointly between all outer tapered wedges, the fixed pulley is located the center of cover half. The fixed pulley is arranged, so that when the first traction rope is pulled, the inner wedge block of the movable die can be right opposite to the outer wedge block of the fixed die, and the matching degree of the inner wedge block and the outer wedge block is improved.

According to the utility model discloses a some embodiments, the push pedal fixedly connected with can insert between all interior tapered wedge the locating piece of constant head tank, the one end fixed connection of first haulage rope is in the front end of locating piece, the center of locating piece be equipped with run through to the line hole of push pedal, the line hole is used for supplying first haulage rope is walked. The positioning block is used for positioning the inner tapered wedge and the outer tapered wedge so as to further improve the matching degree of the inner tapered wedge and the outer tapered wedge.

According to the utility model discloses a some embodiments, because the pipeline support piece that gets into underground passage after need pass pipeline support piece in the past, consequently in order to realize a back pipeline support piece and a preceding pipeline support piece's mutual joint, the external tooth section orientation of steel mould the push pedal.

According to the utility model discloses a some embodiments, for the convenience of the pipeline support piece that gets into underground passage after struts pipeline support piece in the past, the steel mould is having the one end of interior tooth section is equipped with outer chamfer.

According to some embodiments of the utility model, because the cover half leaves under the drive of traction tube rig the cover half, consequently in order to avoid mud to enter into at this moment in the pipe support piece, the rear end of cover half is connected with the seal cover, the seal cover can the cover half with pipe support piece still can maintain sealed between the two when separating.

According to some embodiments of the utility model, because the medial surface of steel mould is the periphery, consequently in order to facilitate strutting the steel mould lamella, the outer peripheral face of interior tapered wedge is the arc surface.

According to the utility model discloses a some embodiments, for the convenience make a plurality of steel mould lamella combines accurately to become the steel mould, the steel mould is equipped with a plurality of location structure, every adjacent two the steel mould lamella all passes through location structure fixes a position.

According to some embodiments of the invention, in order to reduce the coefficient of friction between two said pipe support members, the thickness of said elastic shrinkage band is not greater than the depth of said groove, i.e. said elastic shrinkage band does not protrude outside the outer peripheral surface of said steel form.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a pipe pretreatment die filler according to an embodiment of the present invention;

FIG. 2 is a top view of the pipe preparation die loader shown in FIG. 1;

FIG. 3 isbase:Sub>A cross-sectional view of the pipe preparation die filler shown in FIG. 2, taken along section line A-A;

FIG. 4 is an exploded view of the pipe preparation die filler shown in FIG. 1;

fig. 5 is a schematic view of the pipe pretreatment formwork loader according to the embodiment of the present invention when laying the supporting formwork.

In the drawings: 100-fixed die, 200-movable die, 110-vertical face, 120-opening, 300-drill bit, 310-transfer case, 320-connector, 130-die cavity, 140-outer inclined wedge, 210-push plate, 220-inner inclined wedge, 230-positioning block, 400-movable mechanism, 410-first traction rope, 420-second traction rope, 430-fixed pulley, 231-wire hole, 510-steel die, 511-steel die flap, 520-elastic contraction band, 500-pipeline support, 512-inner tooth segment, 513-outer tooth segment, 150-sealing sleeve and 514-positioning structure.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

As shown in fig. 1 and 2, the pipe pretreatment die loader according to the embodiment of the first aspect of the present invention includes a fixed die 100 and a movable die 200, wherein the fixed die 100 is a cylindrical structure, the front end and the rear end of the fixed die are respectively a vertical surface 110 and an opening 120, the vertical surface 110 is connected to a transfer 310 of a drill bit 300, and the transfer 310 is a structure of the drill bit 300, and is in the prior art, and can be kept relatively still when the drill bit 300 rotates, so that the fixed die 100 does not rotate with the rotation of the drill bit 300. The front end of the drill bit 300 is also provided with a coupling 320 for mounting with the drill stem of a pull tube drill (not shown) so that the pull tube drill can provide power for rotation and forward movement of the drill bit 300.

As shown in fig. 3, the fixed mold 100 is a hollow structure, a mold cavity 130 is arranged in the hollow structure, four outer wedges 140 are arranged in the mold cavity 130 near the vertical surface 110, each outer wedge 140 can be a triangular pyramid, the cross-sectional area of each outer wedge 140 decreases from front to back, the four outer wedges 140 are arranged around the central circumference of the fixed mold 100, and the outer slopes of the four outer wedges 140 are consistent and outward.

As shown in fig. 3 and 4, the movable mold 200 is located at the rear side of the fixed mold 100, the movable mold 200 includes a push plate 210 and four inner wedges 220, and the four inner wedges 220 are slidably connected along different radii of the push plate 210, respectively, so as to expand or contract the movable mold 200. Each of the inner tapered wedges 220 may be a sector cylinder with an inner inclined surface, the inner inclined surfaces of the four inner tapered wedges 220 are inward in a consistent manner, the positions of all the inner tapered wedges 220 and the positions of all the outer tapered wedges 140 are respectively arranged in a one-to-one correspondence manner, when the inner tapered wedges 220 gradually move forward along the outer tapered wedges 140, the inner tapered wedges 220 gradually move along the outer diameter of the push plate 210 under the combined action of the inner inclined surfaces and the outer inclined surfaces to realize the expansion of the movable mold 200, and otherwise, the contraction of the movable mold 200 is realized. It can be understood that the present invention does not limit the specific structure of the outer wedge 140 and the inner wedge 220, as long as the inner wedge 220 can pass through the push plate 210 of the outer wedge 140 to move radially, and the structure of the two is not so limited, which falls within the protection scope of the present invention.

Further, in order to improve the matching degree between the inner wedge 220 and the outer wedge 140, every two adjacent outer wedges 140 are spaced apart from each other, so that all the outer wedges 140 jointly form a positioning groove (not shown in the drawings) in a cross shape. Meanwhile, the push plate 210 is fixedly connected with cross-shaped positioning blocks 230 between the four inner tapered wedges 220, the length of the positioning blocks 230 is smaller than that of the inner tapered wedges 220, and the positioning blocks 230 can be inserted into the positioning grooves to position the inner tapered wedges 220 and the outer tapered wedges 140.

In addition, in order to adjust the relative position between the movable mold 200 and the stationary mold 100, a movable mechanism 400 is connected between the movable mold 200 and the stationary mold 100, the movable mechanism 400 includes a first traction rope 410, a second traction rope 420, and a stationary pulley 430, and the stationary pulley 430 is installed at the center of the positioning groove. The first traction rope 410 and the second traction rope 420 can be selected as steel wire ropes, one end of the first traction rope 410 is fixedly connected to the front end of the positioning block 230, a wire hole 231 is formed in the center of the positioning block 230, the wire hole 231 penetrates through the push plate 210, and the first traction rope 410 bypasses the fixed pulley 430 and passes through the wire hole 231 from front to back to the outside of the push plate 210; one end of the second traction rope 420 is fixedly connected to the rear end of the push plate 210. When the constructor pulls the first pulling rope 410, the movable mold 200 moves toward the fixed mold 100, and when the constructor pulls the second pulling rope 420, the movable mold 200 moves toward the opposite direction of the fixed mold 100. It should be understood that the present invention is not limited to the specific structure of the movable mechanism 400, as long as the movable mechanism 400 can adjust the relative position between the movable mold 200 and the fixed mold 100, and whether the movable mechanism 400 is an electric push rod or other structures, all belong to the protection scope of the present invention.

In order to solve the existing technical problem, the existing steel mold 510 must be modified. The utility model discloses in, steel mould 510 is the pipe form, and it is assembled by four steel mould lamella 511 and forms, every steel mould lamella 511's cross sectional shape is arc, every steel mould lamella 511's outer peripheral face all is equipped with the concave position that can communicate each other, four concave position makes up jointly and follows steel mould 510 circumference sets up the recess. In order to maintain the original structure of the steel mold 510 without external force, the steel mold 510 is connected with an elastic shrinkage band 520 in the groove, the elastic shrinkage band 520 can be selected from a rubber band, and at this time, the elastic shrinkage band 520 can provide elastic force for assembling the four steel mold halves 511, so that the steel mold 510 can be expanded by being expanded from inside to outside or can be restored by being contracted from outside to inside. For convenience of description, the steel mold 510 and the elastic contraction band 520 together form one pipe support 500, and a plurality of the pipe supports 500 connected in sequence may together form a support template for supporting an underground passage.

As shown in fig. 3, every steel mould half 511's one end all is equipped with internal tooth, every steel mould half 511's other one end all is equipped with external tooth, internal tooth with external tooth is located respectively steel mould half 511's inside wall and lateral wall, four internal tooth is just setting up and can make up to steel mould 510's internal tooth section 512, four external tooth is just setting up and can make up to steel mould 510's external tooth section 513, steel mould 510's internal tooth section 512 can with the other one steel mould 510's external tooth section 513 joint each other. The movable mold 200 is used for sleeving the pipe support 500, all the inner tapered wedges 220 and all the steel mold halves 511 are respectively arranged in a one-to-one correspondence, and since the push plate 210 is mainly used for pushing the pipe support 500 to move forward, the outer diameter of the push plate 210 is not smaller than the inner diameter of the steel mold 510 but is preferably not larger than the outer diameter of the steel mold 510.

It should be noted that the internal teeth and the external teeth are not spiral teeth, but discontinuous teeth, and the present invention does not limit the number of the steel mold halves 511, the number of the steel mold halves 511 may be two, three, etc., and correspondingly, the number of the external tapered wedges 140 and the number of the internal tapered wedges 220 are all the same as the number of the steel mold halves 511.

As shown in fig. 5, with the above structure, the construction steps for laying the supporting formwork in the underground passage are as follows:

1. a constructor firstly puts the fixed mold 100 connected with the drill bit 300 into an underground passage, the opening 120 of the fixed mold 100 faces the entrance of the underground passage, and then a pipeline supporting member 500 is fixed at the entrance of the underground passage, and the vertical surface 110 of the fixed mold 100 is separated from the pipeline supporting member 500 by a distance which is more than the length of one pipeline supporting member 500;

2. sleeving a second pipeline support member 500 on the movable mold 200, wherein a constructor pulls the first pulling rope 410 to move the movable mold 200 towards the fixed mold 100, and since the outer diameter of the pushing plate 210 is not smaller than the inner diameter of the steel mold 510, the movable mold 200 can drive the second pipeline support member 500 to move towards the fixed mold 100, and in the process, the second pipeline support member 500 is unfolded and passes through the first pipeline support member 500 to move towards the fixed mold 100;

3. when the inner wedge 220 gradually moves to the outer wedge 140, the inner wedge 220 gradually moves along the outer diameter of the push plate 210 under the action of the outer wedge 140, that is, the size of the movable mold 200 gradually increases, so as to expand the second pipe supporter 500, and the two pipe supporters 500 can be clamped with each other through the outer tooth section 513 and the inner tooth section 512;

4. after that, the construction worker pulls the second pulling rope 420 to move the movable mold 200 out of the underground passageway, and since the second pipe support 500 is engaged with the first pipe support 500, the second pipe support 500 does not move backward with the backward movement of the movable mold 200, when the movable mold 200 is moved out of the underground passageway, the construction worker continues to put the third pipe support 500 on the movable mold 200, and pulls the first pulling rope 410 again to move the movable mold 200 and the third pipe support 500 in the direction of the fixed mold 100, during which the third pipe support 500 is sequentially opened and passes through the first pipe support 500 and the second pipe support 500;

5. when the third pipe support 500 is positioned in the second pipe support 500, the constructor starts the traction pipe drilling machine to drive the drill bit 300 to move forward a distance in the underground passage, so that the fixed die 100 leaves the second pipe support 500, and finally, the step 3 is repeated, so that the third pipe support 500 and the second pipe support 500 are clamped with each other;

6. and circularly implementing the step 4 and the step 5 until the underground passage is covered by a plurality of the pipe supports 500.

It should be further noted that, since the pipe support 500 entering the underground passage at the rear needs to pass through the previous pipe support 500, in order to achieve the mutual clamping between the next pipe support 500 and the previous pipe support 500, when the pipe support 500 is sleeved on the movable mold 200, the external tooth section 513 of the steel mold 510 faces the push plate 210. Meanwhile, in order to facilitate the pipe support 500 entering the underground passage later to prop up the conventional pipe support 500, the steel mold 510 is provided with an outer chamfer at one end having the inner tooth section 512.

As shown in fig. 1, in some embodiments of the present invention, since the fixed mold 100 leaves the fixed mold 100 under the driving of the traction tube drilling machine, in order to prevent the sludge from entering into the pipe support 500 at this time, a sealing sleeve 150 is connected to the rear end of the fixed mold 100, the sealing sleeve 150 may be a rubber sleeve, and the rear end of the rubber sleeve extends out of the fixed mold 100, so that the sealing sleeve 150 can maintain the sealing between the fixed mold 100 and the pipe support 500 when the fixed mold 100 is separated from the pipe support 500.

As shown in fig. 3, in some embodiments of the present invention, in order to further reduce the friction coefficient between two pipe supporting members 500, the thickness of the elastic shrinkage band 520 is not greater than the depth of the groove, i.e. the elastic shrinkage band 520 does not protrude from the outer circumferential surface of the steel mold 510, and at this time, the elastic shrinkage band 520 of the pipe supporting member 500 does not contact with the inner sidewall of another pipe supporting member 500.

In some embodiments of the present invention, in order to facilitate the accurate combination of the steel mold halves 511 into the steel mold 510, the steel mold 510 is provided with four positioning structures 514, and every two adjacent steel mold halves 511 are all positioned by using the corresponding positioning structures 514. In this embodiment, the positioning structure 514 may be a V-shaped structure.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. Pipeline preliminary treatment die-filling ware, its characterized in that includes:

the fixed die (100) is provided with an opening (120) at the rear end, the front end of the fixed die (100) is used for being connected with a transfer case (310) of a drill bit (300), a die cavity (130) is arranged in the fixed die (100), a plurality of outer oblique wedge blocks (140) are arranged in the die cavity (130), and the sizes of the outer oblique wedge blocks (140) are gradually reduced from front to back;

the movable die (200) is positioned at the rear side of the fixed die (100), the movable die (200) comprises a push plate (210) and a plurality of inner wedges (220), the inner wedges (220) are respectively connected in a sliding mode along different radiuses of the push plate (210), and the inner wedges (220) are matched with the outer wedges (140) to achieve radial movement of the inner wedges (220);

a movable mechanism (400) for adjusting the relative position between the movable mold (200) and the fixed mold (100);

pipeline support (500), it includes elastic shrinkage area (520) and a plurality of steel mould lamella (511), and all steel mould lamella (511) make up into pipe form steel mould (510) jointly, the outer peripheral face of steel mould (510) is equipped with the recess that sets up along circumference, elastic shrinkage area (520) are located in the recess, the one end of steel mould (510) is equipped with interior tooth section (512), the other one end of steel mould (510) be equipped with can with interior tooth section (512) external tooth section (513) of mutual joint, pipeline support (500) cover is established outside interior tapered wedge (220), the external diameter of push pedal (210) is not less than the internal diameter of steel mould (510).

2. The pipe pretreatment die filler of claim 1, wherein: the movable mechanism (400) comprises a fixed pulley (430), a first traction rope (410) and a second traction rope (420), the fixed pulley (430) is installed inside the die cavity (130), one end of the first traction rope (410) is fixedly connected to the front portion of the movable die (200), the first traction rope (410) bypasses the fixed pulley (430) and penetrates through the push plate (210) from front to back, and one end of the second traction rope (420) is fixedly connected to the rear end of the push plate (210).

3. The pipe pretreatment die filler of claim 2, wherein: the plurality of the outer wedges (140) are arranged around the center circumference of the fixed die (100), every two adjacent outer wedges (140) are arranged at intervals, so that positioning grooves are formed between all the outer wedges (140) together, and the fixed pulley (430) is positioned in the center of the fixed die (100).

4. The pipe pretreatment die filler of claim 3, wherein: the positioning groove is characterized in that a positioning block (230) which can be inserted into the positioning groove is fixedly connected between all the inner inclined wedges (220) of the push plate (210), one end of the first traction rope (410) is fixedly connected to the front end of the positioning block (230), a wire hole (231) which penetrates through the push plate (210) is formed in the center of the positioning block (230), and the wire hole (231) is used for the first traction rope (410) to pass through.

5. The pipe pretreatment die filler of claim 1, wherein: the outer tooth section (513) of the steel die (510) faces the push plate (210).

6. The pipe pre-treatment die filler of claim 5, wherein: the steel die (510) is provided with an outer chamfer at the end having the inner tooth section (512).

7. The pipe pretreatment die filler of claim 1, wherein: the rear end of the fixed die (100) is connected with a sealing sleeve (150).

8. The pipe pretreatment die filler of claim 1, wherein: the peripheral surface of the inner wedge block (220) is an arc surface.

9. The pipe pretreatment die filler of claim 1, wherein: the steel mould (510) is provided with a plurality of positioning structures (514), and every two adjacent steel mould halves (511) are positioned through the positioning structures (514).

10. The pipe pretreatment die filler of claim 1, wherein: the thickness of the elastic shrink band (520) is no greater than the depth of the groove.

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