A concrete pole steel mold

Abstract

The present invention relates to the technical field of concrete pole manufacturing molds, and discloses a concrete pole steel mold, including a plurality of unit steel molds, each unit steel mold including an upper mold shell and a lower mold shell, both sides of the upper mold shell and the lower mold shell are fixedly connected with skirt plates, after the upper mold shell and the lower mold shell are molded together, the skirt plates of the upper mold shell and the lower mold shell fit each other, and both sides of the unit steel mold are provided with bite plates for clamping and fixing the upper and lower side skirt plates, after the upper mold shell and the lower mold shell are molded and fixedly connected. The concrete pole steel mold, by providing bite plates on both sides of the unit steel mold, using the eccentric cam in the bite plate to press against the skirt plates of the upper and lower mold shells, realizes the fixed connection of the upper mold shell and the lower mold shell when molded together, solves the problem that the steel mold in the prior art needs to be fixed with a large number of bolts, and by applying thrust / clamping force to the counterweight block to trigger the action of the eccentric cam to assist the installation and disassembly of the bite plate, thereby simplifying the operation of molding and demolding the upper mold shell and the lower mold shell.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pole manufacturing moulds, in particular to a concrete pole steel mould. Background Art

[0002] The concrete pole steel mold is generally divided into an upper mold shell and a lower mold shell, and a steel skeleton and concrete are placed inside the mold shell. After the mold is closed, a hollow pole is made by centrifugal forming. For example, the patent document with the prior art patent number CN112209290A discloses an energy-saving and environmentally friendly concrete pole steel mold, which relates to the field of pole manufacturing technology and solves the problem that the steel mold currently used is mainly clamped for fixed models. When clamping models with different diameters, the clamping angle of the existing steel mold assembly is inconvenient to adjust. An energy-saving and environmentally friendly concrete pole steel mold includes a base; the main body of the base is an L-shaped structure, and a wedge frame is slidably arranged at the front end of the rear top of the base through a guide rail; a lifting screw is rotatably arranged at the front end of the rear top of the base, and the lifting screw passes through the wedge frame for threaded connection, and an auxiliary sliding rod is arranged to adjust the lifting width according to the model of the steel mold, and the screw nut can be raised and lowered by rotating the adjustable screw. The position of the auxiliary sliding rod is adjusted by using a pull rod, which is convenient to adjust and has good stability, and can be conveniently applied to different types of steel molds. Compared with the currently used steel mold auxiliary tools, it has stronger applicability.

[0003] The upper mold shell and the lower mold shell are both fixed by bolts. Since the overall length of the pole steel mold is relatively long and the number of bolts used is relatively large, the installation and removal of the bolts consume a lot of time during the mold closing and demolding process. Reducing the number of bolts may cause the mold to be not tight enough and leak slurry. Based on this, the existing concrete pole steel mold has the problem of inconvenient mold closing / demolding operation, that is, it is inconvenient to use thrust / clamping force to assist in mold closing / demolding, and further improvement is needed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem of inconvenient mold closing / disassembly operations of the concrete pole steel mold in the prior art, and to propose a concrete pole steel mold.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a concrete pole steel mold, comprising a plurality of unit steel molds, each unit steel mold comprising an upper mold shell and a lower mold shell, both sides of the upper mold shell and the lower mold shell are fixedly connected with skirt plates, after the upper mold shell and the lower mold shell are molded together, the skirt plates of the upper mold shell and the lower mold shell are attached to each other, and both sides of the unit steel mold are provided with bite plates for clamping and fixing the upper and lower side skirt plates, and after the upper mold shell and the lower mold shell are molded together and fixedly connected, a forming cavity for pouring concrete poles is formed therein;

[0006] A mounting groove is provided on the side of the bite plate, and eccentric cams are rotatably installed on the upper and lower sides of the mounting groove. A transmission rod is slidably installed on the side of the bite plate, one end of the transmission rod extends into the mounting groove and is slidably connected to the end of the eccentric cam, and a counterweight block is fixedly installed on the end of the transmission rod away from the eccentric cam. A reset spring is fixedly installed between the bite plate and the counterweight block. Under the action of the reset spring, the counterweight block is pushed away from the unit steel mold, and the eccentric cam is driven to rotate a certain angle through the transmission of the transmission rod, so that the eccentric cams on the upper and lower sides are respectively pressed against the skirt plate surfaces of the upper mold shell and the lower mold shell. The bite plate has strong integrity and is easy to disassemble and assemble, which simplifies the operations of closing and demolding the upper and lower mold shells.

[0007] Preferably, a damping chamber is opened inside the bite plate, and a sliding block is slidably installed inside the damping chamber. The transmission rod passes through the sliding block and is fixedly connected to the sliding block. A convection gap is reserved between the sliding block and the inner wall of the damping chamber. The sliding block divides the inner cavity of the damping chamber into two left and right chambers, and the two chambers are connected through the convection gap. The damping chamber is filled with filling liquid, and the sliding block is blocked by the filling liquid, which prolongs the recovery time of the reset spring so that there is enough time to remove the bite plate.

[0008] Preferably, an L-shaped bracket is fixedly installed on the end of the transmission rod, a pin is fixedly installed on the end of the L-shaped bracket, a waist-shaped groove is opened at the end of the eccentric cam, the pin is slidably inserted into the waist-shaped groove, a concave groove is opened on the surface of the skirt plate, and the end of the eccentric cam away from the pin can extend into the concave groove.

[0009] Preferably, the filling fluid in the damping cavity is an electrorheological fluid, two electrode plates are embedded in the interior of the bite plate, and the two electrode plates are respectively arranged on the upper and lower sides of the damping cavity. An induction coil package is fixedly installed on the surface of the bite plate, and the induction coil package cuts the magnetic field of the magnetic block to provide voltage for the electrode plate.

[0010] Preferably, semicircular flanges are fixedly installed at both ends of the upper mold shell and the lower mold shell, and positioning protrusions are fixedly installed on the upper surfaces of the semicircular flanges at both ends of the lower mold shell. The positioning protrusions can be slidably inserted into the positioning holes on the lower surfaces of the semicircular flanges at the ends of the upper mold shell. Bolt holes are opened on the end faces of the semicircular flanges. By inserting bolts in the bolt holes of the semicircular flanges, the docking connection of multiple unit steel molds is realized. The semicircular flanges of the upper mold shell and the lower mold shell are fixedly installed with semicircular rollers by bolts, and the semicircular rollers on the upper and lower sides are combined into a circular structure to facilitate the rotation of the steel mold.

[0011] Preferably, a mounting plate is fixedly installed on the surface of the upper mold shell and / or the lower mold shell, a guide rod is rotatably installed on the surface of the mounting plate, a connecting sleeve is fixedly installed on the surface of the bite plate, and the connecting sleeve is slidably connected to the surface of the guide rod. The outer surfaces of the upper mold shell and the lower mold shell are fixedly welded with a plurality of annular ribs and straight ribs, and a plurality of clearance grooves are opened on the side of the bite plate. The annular ribs can be placed in the clearance grooves. The molding cavities of the upper mold shell and the lower mold shell are circular or rectangular. The upper mold shell and the lower mold shell are arranged in an upper and lower opening and closing manner, which can still ensure that the upper mold shell and the lower mold shell are easy to demold.

[0012] Preferably, there are multiple eccentric cams in the bite plate, and the multiple eccentric cams are equally divided into multiple groups. There are multiple counterweight blocks, and each counterweight block controls the rotation of several eccentric cams in each group through the transmission of the transmission rod, so that the number of eccentric cams is sufficient to tighten the skirt plates of the upper mold shell and the lower mold shell.

[0013] The present invention has the following beneficial effects:

[0014] 1. The concrete pole steel mold, by arranging bite plates on both sides of the unit steel mold, uses the eccentric cam in the bite plate to press against the skirt plates of the upper and lower mold shells to achieve fixed connection between the upper mold shell and the lower mold shell, solves the problem that the steel mold in the prior art needs to be fixed with a large number of bolts, and triggers the action of the eccentric cam by applying thrust / clamping force to the counterweight block to assist in the installation and disassembly of the bite plate, simplifies the operation of closing and disassembling the upper and lower mold shells, and greatly improves the production efficiency of concrete poles.

[0015] 2. The concrete pole steel mold is provided with a counterweight block on the outer side of the bite plate. The counterweight block is connected to the eccentric cam through a transmission rod. During the rotation processing of the concrete pole steel mold, the centrifugal force of the counterweight block is radially outward. The centrifugal force acts on the eccentric cam and drives the eccentric cam to rotate. As the rotation speed of the steel mold increases, the centrifugal force of the counterweight block increases accordingly, thereby making the eccentric cam press the skirt plate more tightly. Compared with the use of bolts to connect the upper and lower mold shells, the work and process of rotating the bolts are omitted. Especially when there are a large number of bolts, the use of the steel mold proposed by the present invention is more convenient and labor-saving.

[0016] 3. The concrete pole steel mold is provided with a damping chamber in the bite plate, a sliding block is provided in the damping chamber, and a filling liquid is filled in the damping chamber. After the counterweight block is pressed to compress the reset spring, the counterweight block is released, and the sliding block slides slowly, thereby extending the recovery time of the reset spring so that there is enough time to remove the bite plate. When the counterweight block is pushed inward, the transmission rod drives the eccentric cam to flip in the direction away from the skirt plate, releasing the clamping of the skirt plate, thereby achieving the effect of facilitating the removal of the bite plate.

[0017] Similarly, since the sliding block is blocked by the filling liquid, the movement of the sliding block has a hysteresis. When the steel mold is just started to rotate, the elastic force of the return spring is converted into the pressing force of the eccentric cam on the skirt plate. The movement of the sliding block is slow, allowing the eccentric cam to keep pressing the skirt plate, which is sufficient to support the rotation of the steel mold.

[0018] 4. The filling liquid of the concrete pole steel mold is electrorheological fluid, which is a phase change material. During the rotation of the steel mold, the magnetic field of the magnetic block is cut by the induction coil package, and the generated electromotive force acts on the upper and lower electrode plates. Under the action of the electric field, the electrorheological fluid is converted from liquid to solid. The solid electrorheological fluid constrains the movement of the sliding block, making the eccentric cam press the skirt plate more tightly. When the rotation of the steel mold stops, the electric field of the electrode plate disappears, and the electrorheological fluid returns to liquid, pressing the counterweight block, which can drive the eccentric cam to rotate normally. That is, after the steel mold stops making the hollow pole by centrifugal force, the bite plate can be easily removed without other cumbersome operations, thereby improving the convenience of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the unit steel mold proposed by the present invention (closed mold 1);

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the unit steel mold proposed by the present invention (mold closing 2);

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the unit steel mold proposed in the present invention (mold removal);

[0022] Figure 4 This is a schematic diagram of the connection between two unit steel molds proposed by the present invention;

[0023] Figure 5 It is a schematic structural diagram of the side section of the unit steel mold proposed by the present invention;

[0024] Figure 6 for Figure 5 A schematic diagram of the structure enlargement at point A;

[0025] Figure 7 It is a structural schematic diagram of the side section of the unit steel mold proposed by the present invention (rotational schematic diagram);

[0026] Figure 8 for Figure 7 A schematic diagram of the structure at B in FIG.

[0027] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at position C in FIG.

[0028] In the figure: 1 upper mold shell, 2 lower mold shell, 3 skirt plate, 4 bite plate, 5 eccentric cam, 6 transmission rod, 7 counterweight, 8 return spring, 9 damping chamber, 10 sliding block, 11 pin, 12 electrorheological fluid, 13 electrode plate, 14 induction coil package, 15 semicircular flange, 16 positioning protrusion, 17 semicircular roller, 18 annular rib, 19 linear rib, 20 give way slot, 21 guide rod, 22 connecting sleeve, 23 convection gap, 24 concrete in centrifugal state, 25 magnetic block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0031] Reference Figure 1-9 A concrete pole steel mold includes a plurality of unit steel molds, each of which includes an upper mold shell 1 and a lower mold shell 2. Semicircular flanges 15 are fixedly installed at both ends of the upper mold shell 1 and the lower mold shell 2. Positioning protrusions 16 are fixedly installed on the upper surfaces of the semicircular flanges 15 at both ends of the lower mold shell 2. The positioning protrusions 16 can be slidably inserted into the positioning holes on the lower surfaces of the semicircular flanges 15 at the ends of the upper mold shell 1. Bolt holes are opened on the end surfaces of the semicircular flanges 15. Bolts are inserted into the bolt holes of the semicircular flanges 15 to achieve butt connection of the plurality of unit steel molds, such as Figure 4 shown.

[0032] Both sides of the upper mold shell 1 and the lower mold shell 2 are fixedly connected with skirt plates 3. After the upper mold shell 1 and the lower mold shell 2 are molded together, the skirt plates 3 of the upper mold shell 1 and the lower mold shell 2 fit each other, and both sides of the unit steel mold are provided with bite plates 4 for clamping and fixing the upper and lower side skirt plates 3. After the upper mold shell 1 and the lower mold shell 2 are molded and fixedly connected, a forming cavity for pouring concrete poles is formed therein;

[0033] A mounting groove is provided on the side of the bite plate 4, and eccentric cams 5 are rotatably installed on the upper and lower sides of the mounting groove. A transmission rod 6 is slidably installed on the side of the bite plate 4, one end of the transmission rod 6 extends into the mounting groove and is slidably connected to the end of the eccentric cam 5, and a counterweight block 7 is fixedly installed on the end of the transmission rod 6 away from the eccentric cam 5, wherein an L-shaped bracket is fixedly installed on the end of the transmission rod 6, and a pin shaft 11 is fixedly installed on the end of the L-shaped bracket, a waist-shaped groove is provided on the end of the eccentric cam 5, and the pin shaft 11 is slidably inserted into the waist-shaped groove, and a concave groove is provided on the surface of the skirt plate 3, and the end of the eccentric cam 5 away from the pin shaft 11 can extend into the concave groove.

[0034] A return spring 8 is fixedly installed between the bite plate 4 and the counterweight block 7. Under the action of the return spring 8, the counterweight block 7 is pushed away from the unit steel mold, and the eccentric cam 5 is driven by the transmission rod 6 to rotate a certain angle, so that the eccentric cams 5 on the upper and lower sides are respectively pressed against the surfaces of the skirt plates 3 of the upper mold shell 1 and the lower mold shell 2.

[0035] The bite plate 4 and the unit steel mold can be set to be separated or attached. This embodiment takes the attached type as an example. Figure 1 , 2 As shown, a mounting plate is fixedly mounted on the surface of the upper mold shell 1 and / or the lower mold shell 2, a guide rod 21 is rotatably mounted on the surface of the mounting plate, a connecting sleeve 22 is fixedly mounted on the surface of the bite plate 4, and the connecting sleeve 22 is slidably connected to the surface of the guide rod 21.

[0036] In this embodiment, a damping chamber 9 is provided inside the bite plate 4, a sliding block 10 is slidably installed inside the damping chamber 9, a transmission rod 6 passes through the sliding block 10 and is fixedly connected to the sliding block 10, a convection gap 23 is reserved between the sliding block 10 and the inner wall of the damping chamber 9, the sliding block 10 divides the inner cavity of the damping chamber 9 into two left and right chambers, and the two chambers are connected through the convection gap 23, the damping chamber 9 is filled with a filling liquid, and the filling liquid can be selected from fluid materials such as hydraulic oil, water or viscous mixture, when the sliding block 10 slides left and right, the filling liquid flows in the convection gap 23, refer to Fig. 9 The flow velocity of the filling liquid is limited by the size of the convection gap 23, so that the movement of the sliding block 10 has a certain resistance.

[0037] By setting a damping chamber 9 in the bite plate 4, a sliding block 10 is set in the damping chamber 9, and the damping chamber 9 is filled with filling liquid. After the counterweight block 7 is pressed to compress the reset spring 8, the counterweight block 7 is released, and the sliding block 10 slides slowly, extending the recovery time of the reset spring 8, so that there is enough time to remove the bite plate 4. Moreover, when the counterweight block 7 is pushed inward, the transmission rod 6 drives the eccentric cam 5 to flip in the direction away from the skirt plate 3, releasing the clamping of the skirt plate 3, thereby achieving the effect of facilitating the disassembly of the bite plate 4.

[0038] Similarly, since the sliding block 10 is blocked by the filling liquid, the movement of the sliding block 10 has a hysteresis. When the steel mold is just started to rotate, the elastic force of the return spring 8 is converted into the pressing force of the eccentric cam 5 on the skirt plate 3, and the filling liquid constrains the sliding block 10, so that the movement of the sliding block 10 is hindered, allowing the eccentric cam 5 to maintain the state of pressing the skirt plate 3, which is sufficient to support the rotation of the steel mold.

[0039] In this embodiment, the outer surfaces of the upper mold shell 1 and the lower mold shell 2 are fixedly welded with multiple annular ribs 18 and straight ribs 19, and the side of the bite plate 4 is provided with multiple clearance grooves 20. The annular ribs 18 can be placed in the clearance grooves 20. The molding cavities of the upper mold shell 1 and the lower mold shell 2 are circular or rectangular. The upper mold shell 1 and the lower mold shell 2 are arranged in an upper and lower opening and closing manner, and electric poles with circular or rectangular appearances can be manufactured respectively, while still ensuring that the upper mold shell 1 and the lower mold shell 2 can be easily disassembled.

[0040] The semicircular flanges 15 of the upper mold shell 1 and the lower mold shell 2 are fixed with semicircular rollers 17 by bolts, and the semicircular rollers 17 on the upper and lower sides are combined into a circular structure, such as Figure 4 As shown, a steel skeleton and concrete are placed in the molding cavity of the upper mold shell 1 and the lower mold shell 2. After the mold is closed, a semicircular roller 17 is placed on an electric roller to drive the steel mold to rotate, and a hollow electric pole is made by centrifugal molding. Figure 7 Concrete in a centrifugal state 24.

[0041] In the present embodiment, there are multiple eccentric cams 5 in the bite plate 4, and the multiple eccentric cams 5 are equally divided into multiple groups. There are multiple counterweight blocks 7, and each counterweight block 7 controls the rotation of several eccentric cams 5 in each group through the transmission of the transmission rod 6. The large number of eccentric cams 5 can press the skirt plate 3. It should be noted that when opening or closing the mold, hydraulic tools can be used to press multiple counterweight blocks 7 on the same side, or hydraulic clamping tools can be used to clamp the counterweight blocks 7 on both sides of the steel mold, and thrust / clamping force can be applied to the counterweight blocks 7 to trigger the action of the eccentric cam 5 to assist in the installation and disassembly of the bite plate 4.

[0042] By arranging a counterweight block 7 on the outer side of the bite plate 4, the counterweight block 7 is connected to the eccentric cam 5 through the transmission rod 6. During the rotation processing of the concrete pole steel mold, the centrifugal force direction of the counterweight block 7 is radially outward. Figure 7 The centrifugal force acts on the eccentric cam 5 and drives the eccentric cam 5 to rotate. As the rotation speed of the steel mold increases, the centrifugal force of the counterweight block 7 increases accordingly, so that the eccentric cam 5 presses the skirt plate 3 more tightly. Compared with the use of bolts to connect the upper and lower mold shells, the work and process of rotating the bolts are omitted, and various problems caused by bolt hole and bolt wear are avoided. Especially when there are a large number of bolts, the use of the steel mold proposed by the present invention is more convenient and labor-saving.

[0043] The concrete pole steel mold is provided with bite plates 4 on both sides of the unit steel mold, and the eccentric cam 5 in the bite plate 4 is used to press against the skirt plates 3 of the upper and lower mold shells to achieve a fixed connection between the upper mold shell 1 and the lower mold shell 2. This solves the problem that the steel molds in the prior art need to be fixed with a large number of bolts. The eccentric cam 5 is triggered to move by applying a thrust / clamping force to the counterweight block 7 to assist in the installation and disassembly of the bite plate 4, which simplifies the operation of closing and disassembling the upper mold shell 1 and the lower mold shell 2, and greatly improves the production efficiency of concrete poles. Example

[0044] Reference Figure 7-9 , which is different from Example 1, the filling liquid filled in the damping cavity 9 is an electrorheological fluid 12, two electrode plates 13 are embedded in the interior of the bite plate 4, and the two electrode plates 13 are respectively arranged on the upper and lower sides of the damping cavity 9, and an induction coil package 14 is fixedly installed on the surface of the bite plate 4, and a conductive coil is arranged in the induction coil package 14, and the guide coil is electrically connected to the electrode plate 13 through an amplifying circuit.

[0045] like Figure 7 As shown, in the process of making concrete poles, a magnetic block 25 is installed on the ground so that the magnetic block 25 is placed directly below the induction coil package 14. When the concrete pole steel mold rotates, the induction coil package 14 moves in a circle, so that the conductive coil inside it cuts the magnetic field of the magnetic block 25, thereby causing the conductive coil to generate an electromotive force, that is, the two electrode plates 13 generate an electric field. The faster the steel mold rotates, the stronger the electric field.

[0046] The filling liquid of the concrete pole steel mold is an electrorheological fluid 12, which is a phase change material. During the rotation of the steel mold, the magnetic field of the magnetic block 25 is cut by the induction coil package 14, and the generated electromotive force acts on the upper and lower electrode plates 13. Under the action of the electric field of the electrode plates 13, the electrorheological fluid 12 is converted from liquid to solid. The solid electrorheological fluid 12 constrains the movement of the sliding block 10, so that the eccentric cam 5 presses the skirt plate 3 more tightly. When the rotation of the steel mold stops, the electric field of the electrode plate 13 disappears, and the electrorheological fluid 12 returns to liquid, so that it presses against the counterweight block 7, which can drive the eccentric cam 5 to rotate normally. That is, after the steel mold stops making the hollow pole by centrifugation, the bite plate 4 can be easily removed without other cumbersome operations, thereby improving the convenience of its disassembly and assembly.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concrete pole steel mold, comprising a plurality of unit steel molds, each unit steel mold comprising an upper mold shell (1) and a lower mold shell (2), characterized in that: Both sides of the upper mold shell (1) and the lower mold shell (2) are fixedly connected with skirt plates (3); after the upper mold shell (1) and the lower mold shell (2) are molded together, the skirt plates (3) of the upper mold shell (1) and the lower mold shell (2) fit each other; both sides of the unit steel mold are provided with snap plates (4) for clamping and fixing the upper and lower side skirt plates (3); after the upper mold shell (1) and the lower mold shell (2) are molded together and fixedly connected, a forming cavity for pouring concrete poles is formed therein; The side of the bite plate (4) is provided with an installation groove, and the upper and lower sides of the installation groove are rotatably installed with eccentric cams (5). The side of the bite plate (4) is slidably installed with a transmission rod (6), one end of the transmission rod (6) extends into the installation groove and is slidably connected to the end of the eccentric cam (5), and a counterweight block (7) is fixedly installed at the end of the transmission rod (6) away from the eccentric cam (5). A return spring (8) is fixedly installed between the bite plate (4) and the counterweight block (7). Under the action of the return spring (8), the counterweight block (7) is pushed away from the unit steel mold, and the eccentric cam (5) is driven by the transmission of the transmission rod (6) to rotate a certain angle, so that the eccentric cams (5) on the upper and lower sides are respectively pressed against the surfaces of the skirt plates (3) of the upper mold shell (1) and the lower mold shell (2); A damping chamber (9) is provided inside the bite plate (4), a sliding block (10) is slidably mounted inside the damping chamber (9), and the transmission rod (6) passes through the sliding block (10) and is fixedly connected to the sliding block (10).

2. A concrete pole steel mold according to claim 1, characterized in that: A convection gap (23) is reserved between the sliding block (10) and the inner wall of the damping chamber (9); the sliding block (10) divides the inner cavity of the damping chamber (9) into two left and right chambers, and the two chambers are connected via the convection gap (23); and the damping chamber (9) is filled with a filling liquid.

3. A concrete pole steel mold according to claim 2, characterized in that: An L-shaped bracket is fixedly mounted on the end of the transmission rod (6), a pin shaft (11) is fixedly mounted on the end of the L-shaped bracket, a waist-shaped groove is formed at the end of the eccentric cam (5), the pin shaft (11) is slidably inserted into the waist-shaped groove, a concave groove is formed on the surface of the skirt plate (3), and an end of the eccentric cam (5) away from the pin shaft (11) can extend into the concave groove.

4. A concrete pole steel mold according to claim 3, characterized in that: The filling liquid in the damping cavity (9) is an electrorheological fluid (12), two electrode plates (13) are embedded in the interior of the bite plate (4), the two electrode plates (13) are respectively arranged on the upper and lower sides of the damping cavity (9), and an induction coil package (14) is fixedly mounted on the surface of the bite plate (4).

5. A concrete pole steel mold according to claim 4, characterized in that: Semicircular flanges (15) are fixedly installed at both ends of the upper mold shell (1) and the lower mold shell (2), and positioning protrusions (16) are fixedly installed on the upper surfaces of the semicircular flanges (15) at both ends of the lower mold shell (2). The positioning protrusions (16) can be slidably inserted into the positioning holes on the lower surfaces of the semicircular flanges (15) at the ends of the upper mold shell (1). Bolt holes are opened on the end faces of the semicircular flanges (15). Bolts are inserted into the bolt holes of the semicircular flanges (15) to achieve butt connection of multiple unit steel molds.

6. A concrete pole steel mold according to claim 5, characterized in that: The semicircular flanges (15) of the upper mold shell (1) and the lower mold shell (2) are both fixed with semicircular rollers (17) by bolts, and the semicircular rollers (17) on the upper and lower sides are combined into a circular structure.

7. A concrete pole steel mold according to claim 6, characterized in that: The outer surfaces of the upper mold shell (1) and the lower mold shell (2) are fixedly welded with a plurality of annular ribs (18) and linear ribs (19); the side surface of the bite plate (4) is provided with a plurality of clearance grooves (20); the annular ribs (18) can be placed in the clearance grooves (20); and the molding cavities of the upper mold shell (1) and the lower mold shell (2) are circular or rectangular.

8. A concrete pole steel mold according to claim 7, characterized in that: There are a plurality of eccentric cams (5) in the bite plate (4), and the plurality of eccentric cams (5) are equally divided into a plurality of groups. There are a plurality of counterweight blocks (7), and each counterweight block (7) controls the rotation of a plurality of eccentric cams (5) in each group through the transmission of a transmission rod (6).

9. A concrete pole steel mold according to claim 8, characterized in that: A mounting plate is fixedly mounted on the surface of the upper mold shell (1) and / or the lower mold shell (2), a guide rod (21) is rotatably mounted on the surface of the mounting plate, a connecting sleeve (22) is fixedly mounted on the surface of the bite plate (4), and the connecting sleeve (22) is slidably connected to the surface of the guide rod (21).

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