CN210820091U

CN210820091U - Precast pile forming die group

Info

Publication number: CN210820091U
Application number: CN201921228042.5U
Authority: CN
Inventors: 周兆弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-23
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a precast pile forming die set, which comprises two transverse tension retaining walls which are longitudinally arranged at intervals; the precast pile forming dies are sequentially arranged between the two transverse tensioning retaining walls along the transverse direction and are provided with tensioning screws; the transverse tensioning retaining wall is provided with a transverse adjusting hole through which a tensioning screw rod can longitudinally penetrate, the transverse tensioning retaining wall is provided with a tensioning baffle, and the tensioning baffle is provided with a through hole through which the tensioning screw rod can be radially positioned so that the central line of the precast pile forming die coincides with the central axis of the tensioning screw rod. The utility model discloses an avoid the stretch-draw screw rod to have a down dip at the action of gravity under the combined action of adjusting limit structure and stretch-draw baffle, guarantee the axis of stretch-draw screw rod and precast pile forming die's central line coincidence, avoid causing the end plate slope under the effect of stretch-draw force, guarantee the normal effectual going on of stretch-draw work to produce structural strength height, the smooth precast pile of pile terminal surface.

Description

Precast pile forming die group

Technical Field

The utility model relates to a precast pile production mould technical field specifically is a precast pile forming die group.

Background

The precast pile is generally a concrete pile manufactured by a pre-forming method using a specialized mold in a factory or a construction site. And putting the reinforcement cage into the inner cavity of the mould during the production of the precast pile, distributing the prepared concrete slurry, closing the mould, sealing, and tensioning the reinforcement cage in the mould. The existing precast concrete pile is produced in batch by adopting a mould set, the mould set comprises a bearing platform and a transverse tensioning retaining wall which are tensioned and fixed, and a plurality of precast pile forming moulds which are formed by a bottom mould and a side mould which is vertically arranged with the bottom mould, a tensioning mechanism is connected with an end plate which is positioned on the end surface of the precast pile forming mould, a reinforcement cage positioned in the precast pile forming mould is tensioned, and the tensioning force of a precast concrete pile tensioning device acts on the bearing platform and the transverse tensioning retaining wall on two sides of the mould set.

In the actual production process of precast pile, the precast pile of different model sizes need be produced according to different demands in same mill, but because the restriction of factors such as production place, need adjust the height of precast pile forming die side form and the distance between the adjacent side form according to the actual production condition, form the precast pile forming die of different models to the precast pile of production different models. Wherein, the bearing platform and the transverse tension retaining wall of the mould set are fixed and unchangeable, and the transverse tension retaining wall is provided with a transverse adjusting hole for the tension screw rod to move freely, because the model of the produced precast pile is changed, the tension position of the corresponding precast pile is changed, the tension screw rod may be suspended in the transverse adjusting hole, the transverse tension retaining wall has no certain support to the tension screw rod, the tension screw rod inclines under the action of gravity, the central axis of the tension screw rod deviates from the central line of the precast pile forming mould, when the tension is carried out, the central axis of the tension screw rod deviates, the end plate at the end surface of the precast pile forming mould is inclined, the end surface of the produced precast pile inclines, the forming quality of the precast pile is influenced, the normal butt joint use of the precast pile is influenced, and the tension causes the deformation and damage of the reinforcement cage under severe conditions, reduce the structural strength of precast pile, the useless stake appears.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precast pile forming die group to solve the problem that the axis skew leads to the end plate slope under the action of gravity of stretch-draw screw rod.

In order to achieve the above object, the utility model provides a following technical scheme:

a precast pile forming die set, comprising:

two transversely-tensioned retaining walls which are longitudinally arranged at intervals and oppositely arranged;

the precast pile forming dies are sequentially arranged between the two transverse tensioning retaining walls along the transverse direction and are provided with tensioning screws;

the transverse tensioning retaining wall is provided with a transverse adjusting hole through which a tensioning screw rod can longitudinally penetrate, the transverse tensioning retaining wall is provided with a tensioning baffle, and the tensioning baffle is provided with a through hole through which the tensioning screw rod can be radially positioned so that the central line of the precast pile forming die coincides with the central axis of the tensioning screw rod.

Preferably, the tensioning baffle is detachably matched with the side end, far away from the precast pile forming die, of the transverse tensioning retaining wall through adjusting the limiting structure, so that the tensioning baffle is displaced and fixed along the length direction and the height direction of the transverse tensioning retaining wall, and the central line of the through hole is coincided with the central line of the precast pile forming die.

Preferably, adjust limit structure and include fixed plate and first spacing portion, fixed plate fixed connection in the surface of stretch-draw baffle and at least partially with the top surface parallel and level of stretch-draw baffle and/or at least partial protrusion in the top surface of stretch-draw baffle, first spacing portion sets up the top surface at the fixed plate along precast pile forming die's length direction, and first spacing portion along with the top butt of transversely stretching out the retaining wall, first spacing portion compresses tightly at the top of transversely stretching out the retaining wall under the action of gravity of stretch-draw baffle.

Preferably, adjust limit structure still includes the spacing portion of second, and the spacing portion of second is connected in the one end that the fixed plate was kept away from in first spacing portion, and with the internal surface butt of horizontal stretch-draw barricade.

Preferably, the height of the tensioning baffle is greater than or equal to the height from the upper wall body to the lower wall body of the transverse tensioning retaining wall.

Preferably, the retaining wall support structure further comprises a support piece positioned at the top of the transverse tensioned retaining wall, wherein the support piece is convenient for adjusting the height displacement of the retaining structure along the transverse tensioned retaining wall and supporting the adjusting retaining structure.

Preferably, the supporting member comprises supporting seats which are arranged oppositely at intervals in the length direction of the transverse tensioning retaining wall, and the supporting seats are provided with multiple stages of clamping grooves for the first limiting parts to penetrate through in the vertical direction.

Preferably, the retaining wall further comprises a sliding groove which is positioned at the top of the transverse tensioned retaining wall and facilitates the support to slide along the length direction of the transverse tensioned retaining wall at will.

Preferably, the retaining wall further comprises a protruding structure which is fixedly connected to the outer edge of the top of the transverse tensioning retaining wall and supports the adjusting and limiting structure.

Preferably, the axial projection of the protruding structure is L-shaped or trapezoidal.

The utility model provides a precast pile forming die group has stretch-draw baffle and adjusts limit structure, adjusts limit structure and horizontal stretch-draw barricade butt, prevents that stretch-draw baffle from removing at the direction of height of horizontal stretch-draw barricade to adjust the at least part of contact surface of limit structure and horizontal stretch-draw barricade contact and be the mat surface, frictional force between limit structure and the horizontal stretch-draw barricade is adjusted in the increase, prevents that stretch-draw baffle from removing on the length direction of horizontal stretch-draw barricade. The tensioning baffle is provided with a through hole for a tensioning screw to pass through, and plays roles of supporting and radially positioning the tensioning screw, the tensioning screw is prevented from inclining under the action of gravity under the combined action of an adjusting limit structure and the tensioning baffle, the central axis of the tensioning screw is ensured to be superposed with the central line of a precast pile forming die, the end plate is prevented from inclining during tensioning, and the tensioning work is ensured to be normally and effectively carried out, so that the precast pile with high structural strength and flat pile end surface is produced, and the normal butt joint of the precast pile is ensured; meanwhile, the adjusting and limiting structure is abutted against the transverse tensioning retaining wall, so that the tensioning retaining plate is convenient to replace and move when precast piles of different specifications are produced, the position of the tensioning screw rod is convenient to adjust, the central axis of the tensioning screw rod is ensured to be superposed with the central line of a precast pile forming die, and the normal operation of tensioning work is ensured; and, through setting up support piece, when adjusting the central line coincidence of stretch-draw screw and precast pile forming die, need not to change the stretch-draw baffle, realize quick effectual regulation.

Drawings

Fig. 1 is a schematic structural view of a precast pile forming mold set disclosed in a first embodiment of the present invention;

FIG. 2 is a schematic structural view of the transversely tensioned retaining wall of FIG. 1;

FIG. 3 is a schematic view of the tensioning mechanism of FIG. 1;

fig. 4 is a schematic structural view of an adjusting and limiting structure disclosed in the first embodiment of the present invention;

fig. 5 is a schematic structural view of the supporting member disclosed in the present invention;

FIG. 6 is a top view of a transversely tensioned retaining wall having support members according to the present invention;

fig. 7 is a schematic view of the convex structure disclosed in the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 7;

fig. 9 is a schematic structural view of a precast pile forming die set according to a second embodiment of the present invention;

fig. 10 is a schematic structural view of an adjusting and limiting structure disclosed in the second embodiment of the present invention.

In the figure: 100. a precast pile forming die; 200. transversely tensioning the retaining wall; 201. a support plate; 202. a lateral adjustment aperture; 300. stretching the baffle; 301. a through hole; 400. adjusting the limiting structure; 401. a fixing plate; 402. a first limiting part; 403. a second limiting part; 404. a contact surface; 500. a concrete platform; 600. a tensioning mechanism; 601. stretching the screw; 602. stretching the plate; 603. tensioning the locking nut; 700. a support member; 701. a supporting seat; 702. a card slot; 800. a chute; 900. and (4) a convex structure.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

In the concrete precast pile production process, it is unnecessary to carry out the stretch-draw to the steel reinforcement cage of placing in precast pile forming die 100 and can be few process, improve the structural strength of concrete precast pile through the stretch-draw, guarantee the security of concrete precast pile use, must guarantee the central line coincidence of stretch-draw screw 601 and precast pile forming die 100 in the stretch-draw process, just can guarantee the normal clear of stretch-draw work, otherwise, stretch-draw screw 601 slope in the stretch-draw process, cause the end plate slope that is located precast pile forming die 100 both ends, lead to the precast pile terminal surface slope of producing, influence the normal butt joint of precast pile, and, it is inhomogeneous to lead to the steel reinforcement cage among the stretch-draw process easily, even lead to the steel reinforcement cage to stretch-draw to damage, reduce the structural strength of precast pile, influence the production quality of precast pile. The precast pile forming mold 100 includes a side mold and a bottom mold.

Example 1

As shown in fig. 1-6, fig. 1 is a schematic structural view of a precast pile forming mold set according to a first embodiment of the present invention; FIG. 2 is a schematic structural view of the transversely tensioned retaining wall of FIG. 1; FIG. 3 is a schematic view of the tensioning mechanism of FIG. 1; fig. 4 is a schematic structural view of an adjusting and limiting structure disclosed in the first embodiment of the present invention; fig. 5 is a schematic structural view of the supporting member disclosed in the present invention; fig. 6 is a top view of the transversely tensioned retaining wall with support members of the present invention.

As shown in fig. 1-4, the utility model provides a pair of precast pile forming die group, including two or more precast pile forming die 100, be located precast pile forming die group's both sides and be used for the fixed concrete platform 500 of stretch-draw, detachable fix on concrete platform 500 and relative interval set up horizontal stretch-draw barricade 200 and be used for the stretch-draw mechanism 600 of stretch-draw, stretch-draw mechanism 600 includes stretch-draw screw 601, each precast pile forming die 100 is arranged between two horizontal stretch-draw barricades 200 along transversely in proper order, horizontal stretch-draw barricade 200 is seted up and is supplied the transverse adjustment hole 202 that stretch-draw screw 601 vertically run through. The tensioning baffle plate 300 is further included, and through holes 301 for the tensioning screws 601 to penetrate through and for supporting and positioning the tensioning screws 601 are formed in the tensioning baffle plate 300. The tension baffle 300 is further provided with an adjusting and limiting structure 400 for limiting the movement of the tension baffle 300 in the height direction of the transverse tension retaining wall 200, and the height of the tension baffle 300 is greater than or equal to the height from the upper wall to the lower wall of the transverse tension retaining wall 200, so that the tension baffle 300 has sufficient supporting force during the tension process to ensure the stability of the tension baffle 300 and prevent plane deviation.

In the above structure, at least two precast pile forming molds 100 are disposed between the two oppositely disposed concrete platforms 500 to form a precast pile forming mold set for forming a precast pile, thereby facilitating the simultaneous fabrication of a plurality of precast concrete piles. Wherein, the transverse tension retaining wall 200 is detachably and fixedly connected with the concrete platform 500, and can be fixed by clamping, screwing and the like, preferably, corresponding threaded holes are arranged on the transverse tension retaining wall 200 and the concrete platform 500, and are screwed by bolts or screws and the like, so as to be convenient for installation and disassembly, and the transverse tension retaining wall 200 and the concrete platform 500 both play a role of tension fixing, so as to be convenient for tensioning a reinforcement cage in the precast pile production process, ensure that the produced precast concrete pile has enough structural strength and accords with the production standard, the transverse tension retaining wall 200 is provided with tension baffles 300 which are in one-to-one correspondence with the precast pile forming molds 100, the tension screw 601 in the tension mechanism 600 is supported and limited by the through holes 301 on the tension baffles 300, so as to prevent the tension screw 601 from tilting under the action of gravity, and ensure that the central axis of the tension screw 601 coincides with the central line of the precast pile forming mold 100, the end plate is prevented from inclining under the action of the tension force, and the normal and effective operation of the tension work is ensured, so that the precast pile with high structural strength and smooth pile end surface is produced, and the normal butt joint of the precast pile is ensured. Meanwhile, since the adjusting limit structure 400 is abutted to the transverse tensioning retaining wall 200, the tensioning baffle 300 is convenient to replace and move when precast piles of different specifications are produced.

Due to the limitation of production sites and other reasons, the height of the side molds of the precast pile forming mold 100 and the distance between the adjacent side molds need to be adjusted according to actual production conditions to form precast pile forming molds of different models, so as to produce precast piles of different models. Since the type of the precast pile is changed and the tensioning position is changed, the positions of the tensioning baffle 300 and the tensioning mechanism 600 need to be adjusted to ensure that the central axis of the tensioning screw 601 in the tensioning mechanism 600 coincides with the central line of the precast pile forming mold 100. The tensioning baffle 300 is abutted against the transverse tensioning retaining wall 200 through the adjusting limiting structure 400, the tensioning baffle 300 is limited to move in the height direction of the transverse tensioning retaining wall 200, the tensioning screw 601 is prevented from inclining downwards under the action of gravity, the central axis of the tensioning screw 601 is enabled to coincide with the central line of the precast pile forming die 100, meanwhile, replacement and adjustment are facilitated, the replacement efficiency of different models of precast pile forming dies 100 is improved, and therefore the production efficiency of different models of precast piles is improved.

Further, in order to reduce the cost, the transverse tension retaining wall 200 is a hollow structure, and the inner wall of the transverse tension retaining wall 200 is provided with a plurality of supporting plates 201, the supporting plates 201 are used for supporting the tension baffle 300, so as to improve the supporting strength, wherein, the supporting plate can be a horizontal plate or a vertical plate or the combination of the two, and the horizontal tensioning retaining wall 200 is provided with at least one horizontal adjusting hole 202, the horizontal adjusting hole 202 is preferably a rectangular hole with four rounded corners, of course, the lateral adjustment hole 202 may have other shapes, and the specific shape is not limited, and the lateral adjustment hole 202 may be penetrated by the tension screw 601, and the tensioning screw 601 can move freely in the transverse adjusting hole 202 along the height direction and the length direction of the transverse tensioning retaining wall 200, so that the position of the tensioning mechanism 600 can be adjusted conveniently, and the transverse tensioning retaining wall 200 is suitable for precast pile forming die sets of different models.

Wherein, according to the precast pile forming die 100 of different models, change different stretch-draw baffle 300, guarantee that the central line position of stretch-draw screw 601 keeps the coincidence with the central line of precast pile forming die 100 all the time, wherein, the one end and the outside tensioning device of stretch-draw screw 601 are connected, the other end is equipped with stretch-draw board 602, stretch-draw board 602 is used for being connected with the end plate that sets up at precast pile forming die 100 tip, and coaxial cover is equipped with stretch-draw lock nut 603 on the stretch-draw screw 601, screw up stretch-draw lock nut 603, make stretch-draw baffle 300 closely laminate with horizontal stretch-draw barricade 200, guarantee the normal clear of stretch-draw work, thereby guarantee the structural strength of the precast pile.

Further, in order to improve the applicability of the transverse tensioned retaining wall 200, the transverse tensioned retaining wall 200 may be set to different lengths, and both the transverse tensioned retaining wall 200 may be applicable to a single precast pile forming mold 100 and a concrete precast pile forming mold set formed by a plurality of precast pile forming molds 100, and specific selection is made according to actual production and use environments.

Further, as shown in fig. 4, the adjusting and limiting structure 400 includes a fixing plate 401 and a first limiting portion 402, the fixing plate 401 and the first limiting portion 402 may be integrally formed, or may be a split structure, when the split structure is formed, the fixing plate 401 and the first limiting portion 402 may be welded, clamped, screwed, or otherwise, detachably or non-detachably fixed connected, no matter the fixing plate 401 and the first limiting portion 402 are split structures or integrally formed, the fixing plate 401 and the tensioned baffle 300 are both detachably or non-detachably fixed connected, for example, welded or screwed, or otherwise, wherein the first limiting portion 402 and the transverse tensioned baffle 200 may be locked by a locking structure (not shown in the drawing), so as to further improve the stability of the abutting joint, or not locked, and under the action of gravity, the pressing is achieved.

Wherein, the top of the fixing plate 401 may be flush with the end surface of the tension baffle 300 or at least partially protrude from the end surface of the tension baffle 300, the inner wall of the first position-limiting part 402 forms an interference surface 404, and in order to enhance the friction between the abutting surface 404 and the laterally tensioned retaining wall 200 and prevent the tensioned baffle 300 from sliding, the abutting surface 404 is at least partially a rough surface, and the abutting surface 404 abuts against the top of the laterally tensioned retaining wall 200 or the protruding structure 900 at the top of the laterally tensioned retaining wall 200, under the action of the gravity of the tensioning baffle 300 and the tensioning mechanism 600, the first limiting part 402 is pressed against the top of the transverse tensioning retaining wall 200 or a protruding part at the top of the transverse tensioning retaining wall 200 to limit the movement of the tensioning baffle 300 in the height direction of the transverse tensioning retaining wall 200, so that the situation that the tensioning screw 601 is inclined downwards due to the action of the gravity of the tensioning mechanism 600 is avoided, and the normal operation of tensioning is ensured.

It should be noted that the central axis of the tensioning screw 601 coincides with the central axis of the precast pile forming mold 100, which does not mean absolute coincidence, and it should be understood that the central axis coincides with the central axis of the precast pile forming mold 100, that is, the coincidence is allowed to have a certain error, and as long as the error value is within a range that does not affect the normal tensioning of the tensioning mechanism 600, the central axis of the tensioning screw 601 coincides with the central axis of the precast pile forming mold 100.

In the assembling process of the precast pile forming die set, the precast pile forming die 100 is arranged between two concrete platforms 500, wherein the concrete platforms 500 can be replaced by other structures, when precast piles of different models are produced, the precast pile forming die 100 is replaced or the side dies of the precast pile forming die 100 are moved, the distance between the adjacent side dies is changed, so as to change the model of the precast pile, one side die can be shared or not between the two adjacent precast pile forming dies 100 in the precast pile forming die set, the shared side die reduces the die cost, specifically, according to the judgment of actual conditions, when the central line of the precast pile forming die 100 moves upwards or downwards, the corresponding tension baffle 300 needs to be replaced, so as to ensure that the central line of the precast pile forming die 100 is coincident with the central axis of the tension screw 601, then the tension baffle 300 is tightly pressed with the transverse retaining wall 200 through the tension lock nut 603, when the central line of the precast pile forming mold 100 moves left and right, the tensioning locking nut 603 is loosened, and then the tensioning baffle 300 and the tensioning mechanism 600 move to the offset position, when the central line of the precast pile forming mold 100 moves up and down and moves left and right, the operations of the two situations need to be completed, and the appropriate transverse tensioned retaining wall 200 needs to be replaced if necessary, but the transverse tensioned retaining wall 200 is fixed with the concrete platform 500, so the transverse tensioned retaining wall 200 is generally not replaced.

Based on the first embodiment, in at least one embodiment, as shown in fig. 5 and 6, a sliding groove 800 for sliding a supporting member 700 is disposed on the transverse tensioned retaining wall 200, wherein the supporting member 700 includes supporting seats 701 disposed at intervals in the length direction of the transverse tensioned retaining wall 200, the supporting seats 701 and the transverse tensioned retaining wall 200 may be detachably fixed by bolts or the like, or may not be fixed, the supporting seats 701 are provided with multiple stages of clamping grooves 702 for allowing the first limiting portion 402 to pass through and limiting the first limiting portion 402, so as to limit the movement of the tensioned baffle 300 in the height direction of the transverse tensioned retaining wall 200, the height of the clamping groove 702 is greater than or equal to the height of the first limiting portion 402, the difference between the two is 0-5cm, the distance between the inner walls of the clamping grooves 702 located at the same horizontal plane is always greater than or equal to the width of the first limiting portion 402, and the difference between the two is 0-5cm, even if the first position-limiting part 402 is installed, the movement of the first position-limiting part 402 is limited, and the position of the first position-limiting part 402 is ensured to be relatively fixed.

When the supporting member 700 is disposed on the lateral tensioned retaining wall 200, the height of the center line of the through hole 301 of the tensioned baffle 300 may be set to be the same as the height of the lowest precast pile forming mold 100. When the center line of the precast pile forming mold 100 moves left and right, the tension baffle 300 does not need to be replaced no matter the center line moves left and right or moves up and down. When the central line of the precast pile forming mold 100 moves left and right, the tensioning locking nut 603 is loosened, and then the tensioning baffle 300, the support member 700, and the tensioning mechanism 600 are moved to the offset position. When the central line of precast pile forming die 100 reciprocates, the position of support piece 700 is unchangeable, with first spacing portion 402 and the draw-in groove 702 butt that corresponds can to there is the dog between two adjacent draw-in grooves 702, higher level's dog is spacing to first spacing portion 402, improves the stability of first spacing portion 402 and draw-in groove 702 butt. When the central line of the precast pile forming die 100 moves up and down and moves left and right, operations under the two conditions need to be completed, and by arranging the supporting piece 700, when the tensioning screw 601 is adjusted to coincide with the central line of the precast pile forming die 100, the tensioning baffle 300 does not need to be replaced, so that quick and effective adjustment is realized.

Based on the first embodiment, in at least one embodiment, as shown in fig. 7 and 8, a protruding structure 900 is fixedly connected to the laterally tensioned retaining wall 200, wherein the protruding structure 900 can be fixed by welding, or can be detachably fixed by screwing, pinning, etc. The axial projection of the protruding structure 900 is L-shaped or trapezoidal or other shapes, and the contact area between the protruding structure 900 and the first limiting portion 402 in the adjusting limiting structure 400 is smaller than the bottom area of the first limiting portion 402, so that the connection stability between the tensioned baffle 300 and the transverse tensioned retaining wall 200 is improved.

Example two

As shown in fig. 9 and 10, fig. 9 is a schematic structural view of a precast pile forming mold set according to a second embodiment of the present invention; fig. 10 is a schematic structural view of an adjusting and limiting structure according to a second embodiment of the present invention.

In the present embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

As shown in fig. 9 and 10, the second embodiment is different from the first embodiment in that, in order to increase the contact area between the adjustment limiting structure 400 and the transverse tensioned retaining wall 200, a second limiting portion 403 is disposed at an end of the first limiting portion 402, an abutting surface 404 is formed at a side of the second limiting portion 403 and a bottom of the second limiting portion 403, and the abutting surface 404 abuts against a side of the transverse tensioned retaining wall 200 and a top or a protruding portion of the top, so as to achieve a better abutting effect, prevent the tensioned retaining wall 300 from moving, better ensure that a central axis of the tensioned screw 601 coincides with a central axis of the precast pile forming mold 100, and preferably, an arc transition section is disposed between the first limiting portion 402, the second limiting portion 403 and the fixing plate 401, so as to reduce stress concentration and improve the overall structural strength of the adjustment limiting structure 400, wherein the second limiting portion 403 and the first limiting portion 402 can be integrally formed, the fixing device can be detachably or non-detachably fixedly connected in a fixing mode such as welding, clamping and the like.

The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and different embodiments can be obtained by performing targeted adjustment according to actual needs. For example, a groove may be formed on the lateral tensioning retaining wall 200, the second limiting portion 403 of the adjusting limiting structure 400 may be inserted into the groove to limit, or the second limiting portion 403 of the adjusting limiting structure 400 may be reversely locked with one side of the protrusion structure 900. This is not illustrated here, since many implementations are possible.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A precast pile forming die set is characterized by comprising:

2. The precast pile forming die set according to claim 1, wherein the tension baffle is detachably fitted to a side end of the transverse tension retaining wall away from the precast pile forming die by adjusting a limiting structure, so that the tension baffle is displaced and fixed along the length and height directions of the transverse tension retaining wall, so that the center line of the through hole coincides with the center line of the precast pile forming die.

3. The precast pile forming die set according to claim 2, wherein the adjusting and limiting structure comprises a fixing plate and a first limiting part, the fixing plate is fixedly connected to the outer surface of the tensioning baffle plate, at least part of the fixing plate is flush with the top surface of the tensioning baffle plate and/or at least part of the fixing plate protrudes out of the top surface of the tensioning baffle plate, the first limiting part is arranged on the top surface of the fixing plate along the length direction of the precast pile forming die, the first limiting part abuts against the top of the transverse tensioning baffle wall, and the first limiting part is pressed against the top of the transverse tensioning baffle wall under the action of gravity of the tensioning baffle plate.

4. The precast pile forming die set according to claim 3, wherein the adjusting and limiting structure further comprises a second limiting portion, and the second limiting portion is connected to one end of the first limiting portion, which is far away from the fixing plate, and abuts against the inner surface of the transverse tensioned retaining wall.

5. The precast pile forming die set according to claim 1, wherein the height of the tension baffle is greater than or equal to the height from the upper wall body to the lower wall body of the transverse tension retaining wall.

6. The precast pile forming die set according to claim 1, further comprising a supporting member at the top of the transverse tensioned retaining wall, wherein the supporting member facilitates displacement of the adjusting and limiting structure along the height direction of the transverse tensioned retaining wall and supports the adjusting and limiting structure.

7. A precast pile forming die set according to claim 6, wherein the supporting member comprises supporting seats which are arranged at intervals in the length direction of the transverse tensioned retaining wall, and the supporting seats are provided with a plurality of stages of clamping grooves for the first limiting parts to pass through in the vertical direction.

8. The precast pile forming die set according to claim 1, further comprising a sliding groove which is located at the top of the transverse tensioned retaining wall and facilitates the supporting member to slide arbitrarily along the length direction of the transverse tensioned retaining wall.

9. The precast pile forming die set according to claim 1, further comprising a protruding structure fixedly connected to an outer edge of the top of the transverse tensioned retaining wall and supporting the adjusting and limiting structure.

10. A precast pile forming die set according to claim 9, wherein the axial projection of the projection structure is L-shaped or trapezoidal.