Electric pole steel mould with annular linkage prestress mechanism

Abstract

The invention relates to the technical field of electric pole steel molds, in particular to an electric pole steel mold with an annular linkage prestress mechanism, which comprises a steel mold body, and a prestressed reinforcement is inserted into the steel mold body; the steel bar supporting and positioning assemblies are symmetrically installed at the two ends of the steel die body and used for supporting prestressed steel bars. The reinforcing steel bar end part clamping and fixing assembly is mounted on the reinforcing steel bar supporting and positioning assembly and is used for clamping and fixing the end part of the prestressed reinforcing steel bar; the prestressed bearing rings are arranged at the two ends of the steel die body correspondingly, prestressed steel bars can be supported and positioned under the arrangement of the prestressed bearing rings, meanwhile, synchronous tensioning of the prestressed steel bars can be achieved, uneven stress distribution caused by the tensioning time difference can be avoided, and therefore the overall stability of an electric pole structure is guaranteed; and meanwhile, possible deformation or cracks of the electric pole structure can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric pole steel mold, in particular to an electric pole steel mold with annular linkage prestress mechanism. BACKGROUND

[0002] The prestressed electric pole steel mold can improve the bearing capacity and durability of the electric pole by setting prestressed steel bars in the steel mold. The existing electric pole steel mold can effectively avoid eccentric stress by symmetrical tensioning when tensioning the prestressed steel bars. However, the tensioning of the prestressed steel bars is carried out one by one, which cannot synchronize the tensioning of all prestressed steel bars, making the operation more troublesome, and cannot synchronize the tensioning of the prestress, which may cause the tension of each prestressed steel bar to be different, thereby affecting the quality of electric pole production. SUMMARY

[0003] The purpose of the present application is to provide an electric pole steel mold with annular linkage prestress mechanism to solve the problem of the existing electric pole steel mold that cannot realize synchronous tensioning of prestressed steel bars.

[0004] To achieve the above purpose, the present application provides the following technical scheme:

[0005] An electric pole steel mold with annular linkage prestress mechanism, comprising: a steel mold body, the inside of the steel mold body is inserted with prestressed steel bars;

[0006] A steel bar supporting and positioning assembly is symmetrically installed at both ends of the steel mold body for supporting the prestressed steel bars;

[0007] A steel bar end clamping and fixing assembly is installed on the steel bar supporting and positioning assembly for clamping and fixing the end of the prestressed steel bar;

[0008] A clamping and driving assembly is also installed on the steel bar supporting and positioning assembly and cooperates with the steel bar end clamping and fixing assembly to drive the steel bar end clamping and fixing assembly to move.

[0009] Further, support circular tables are symmetrically fixed at both ends of the steel mold body, support circular rods are fixedly arranged on the support circular tables, and the steel bar supporting and positioning assembly is supported by the support circular rods.

[0010] Further, the steel bar supporting and positioning assembly comprises a prestress bearing ring which is sleeved on the support circular rod;

[0011] A counterweight bearing plate is fixedly arranged on the prestress bearing ring.

[0012] Further, the prestressed bearing ring is provided with a supporting circular hole matched with a supporting circular rod to support the prestressed bearing ring.

[0013] Further, the counterweight bearing plate is fixedly provided with an assembly sleeve to support the prestressed steel bar.

[0014] Further, the steel bar end clamping and fixing assembly comprises a movable bearing block movably installed on the counterweight bearing plate.

[0015] A driving ring sleeve is also movably installed on the counterweight bearing plate.

[0016] A second clamping ring plate is installed in the prestressed bearing ring.

[0017] Further, the movable bearing block is fixedly provided with a first clamping ring plate to clamp the prestressed steel bar.

[0018] Further, the driving ring sleeve is movably connected with the movable bearing block to move the driving ring sleeve through the movable bearing block.

[0019] Further, the second clamping ring plate is movably connected with the driving ring sleeve to move the second clamping ring plate through the driving ring sleeve to clamp the prestressed steel bar.

[0020] Further, the steel bar end clamping and fixing assembly further comprises a clamping and matching strip in the assembly sleeve to move through the driving ring sleeve to clamp the prestressed steel bar.

[0021] Further, the clamping and driving assembly is a driving matching sleeve installed on the prestressed bearing ring to move the movable bearing block through cooperation with the movable bearing block.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] 1. The prestressed bearing rings arranged at both ends of the steel mold body can not only support and position the prestressed steel bars, but also realize synchronous tensioning of the prestressed steel bars, so that the uneven stress distribution caused by the tensioning time difference can be avoided, thereby ensuring the overall stability of the pole structure and reducing the deformation or cracks of the pole structure.

[0024] 2. The prestressed bearing rings arranged at both ends of the steel mold body can not only realize single-end tensioning of the prestressed steel bars, but also realize simultaneous tensioning of the prestressed steel bars at both ends, so that different tensioning requirements can be met, and the adaptability is high and the operation is simple and convenient.

[0025] 3. In addition, the two ends of the prestressed steel bar can be fixed by multi-layer clamping, which fully guarantees the clamping force of the prestressed steel bar, and further guarantees the operation safety of the prestressed steel bar in the tensioning process. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is an assembly diagram of the steel mold body.

[0027] Figure 2 It is a structural diagram of the steel mold body.

[0028] Figure 3 It is an assembly diagram of the prestressed bearing ring.

[0029] Figure 4 It is an assembly diagram of the prestressed bearing ring and the driving ring sleeve.

[0030] Figure 5 It is an assembly diagram of the prestressed bearing ring and the second clamping ring plate.

[0031] Figure 6 It is a first perspective structural diagram of the prestressed bearing ring.

[0032] Figure 7 It is a second perspective structural diagram of the prestressed bearing ring.

[0033] Figure 8 It is a structural diagram of the counterweight bearing plate.

[0034] Figure 9 It is a half-section structural diagram of the counterweight bearing plate.

[0035] Figure 10 It is a cooperation diagram of the assembly sleeve and the prestressed steel bar.

[0036] Figure 11 It is an assembly diagram of the assembly sleeve.

[0037] Figure 12 It is a connection diagram of the driving ring sleeve and the second clamping ring plate.

[0038] Figure 13 It is an assembly diagram of the movable bearing block and the driving cooperation sleeve.

[0039] In the diagram: 1. Steel mold body; 11. Supporting frustum; 12. Supporting rod; 2. Prestressed bearing ring; 21. Supporting hole; 22. First thread; 23. Protruding bearing ring; 24. Connecting support frame; 25. Limiting ring; 26. Inner bearing plate; 27. Movable bearing hole; 3. Counterweight bearing plate; 31. Support moving groove; 32. Support mating block; 33. Insertion bearing hole; 34. Assembly set; 35. Inner bearing strip; 36. Supporting ring sleeve; 37. Protruding bearing block; 38. Connecting hole; 4. Movable bearing block; 41. Movable mating rod; 42. Movable mating frame; 43. Insertion 44. Support rod; 45. First connecting spring; 5. First clamping ring plate; 6. Drive ring sleeve; 7. Conical inner support platform; 8. Matching support bar; 9. Movable support plate; 10. Movable support column; 11. Protruding connecting plate; 12. Connecting movable rod; 13. Second clamping ring plate; 14. Movable support rod; 15. Connecting support block; 16. Clamping mating bar; 17. Matching support rod; 18. Hemispherical support block; 19. Second connecting spring; 20. Drive mating sleeve; 21. Second thread; 22. Support ring platform; 33. Matching ring groove; 44. Inclined protrusion; 55. Prestressed steel bar. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] This invention provides a technical solution:

[0042] like Figure 1 As shown, a pole steel mold with a ring-linked prestressed mechanism includes: a steel mold body 1, a rebar support and positioning component, a rebar end clamping and fixing component, and a clamping drive component. Prestressed rebars 9 are inserted inside the steel mold body 1. Through the arrangement of the prestressed rebars 9, the prestressed rebars 9 work collaboratively with the concrete matrix of the pole, tightly constraining the expansion of micropores inside the concrete, reducing the probability of moisture and corrosive media (such as rainwater and soil salts) penetrating into the concrete and contacting the rebars, thus reducing the rate of rebar corrosion. Furthermore, the concrete matrix of the pole in the prestressed state has higher density, enhanced impermeability and carbonation resistance, effectively delaying the erosion and damage to the pole structure from the external environment, significantly extending the pole's service life, improving its durability in complex outdoor environments, reducing later maintenance costs and replacement frequency, meeting the durability design standards for long-term outdoor use of poles, and effectively improving the load-bearing capacity and durability of the pole.

[0043] The steel bar support positioning assembly is symmetrically installed at both ends of the steel mold body 1, used for supporting the prestressed steel bars 9, facilitating the later tensioning of the prestressed steel bars 9, and the steel bar support positioning assembly is installed at both ends of the steel mold body 1, so that the tensioning flexibility is stronger, that is, during the actual tensioning process, single-end tensioning or simultaneous tensioning of the prestressed steel bars 9 can be performed according to the tensioning requirements.

[0044] The steel bar end clamping and fixing assembly is installed on the steel bar support positioning assembly, used for clamping and fixing the ends of the prestressed steel bars 9, and the clamping and driving assembly is also installed on the steel bar support positioning assembly, cooperating with the steel bar end clamping and fixing assembly to drive the steel bar end clamping and fixing assembly to move, realizing clamping and fixing of the ends of the prestressed steel bars 9, and the clamping and driving assembly can drive multiple steel bar end clamping and fixing assemblies to move synchronously, realizing synchronous clamping and fixing of multiple prestressed steel bars 9, without the need for one-by-one operation of clamping the prestressed steel bars 9, which is very convenient and fast, and the operation is simple.

[0045] As shown in Figure 1 and Figure 2 , the steel mold body 1 is symmetrically provided with a support circular table 11 at both ends by welding process, and a support circular rod 12 is integrally formed and fixed on the support circular table 11, and the steel bar support positioning assembly is supported by the support circular rod 12, so that the steel bar support positioning assembly can move along the support circular rod 12.

[0046] As shown in Figure 1 , Figure 6 and Figure 7 , the steel bar support positioning assembly comprises a prestressed bearing ring 2 and a counterweight bearing plate 3, the prestressed bearing ring 2 is sleeved on the support circular rod 12, and specifically, a support circular hole 21 is formed on the prestressed bearing ring 2, which cooperates with the support circular rod 12 to support the prestressed bearing ring 2, wherein the machining precision of the support circular hole 21 needs to meet the preset technical requirements, the inner wall is finely polished and polished, ensuring smooth surface without sharp burrs, protrusions or machining residual defects, so as to avoid damage to the surface coating of the support circular rod 12 or cause assembly jamming, local stress concentration of the prestressed bearing ring 2 due to rough inner wall or burr scratching during relative installation or subsequent stress process of the prestressed bearing ring 2 and the support circular rod 12.

[0047] In addition, the inner diameter size of the supporting circular hole 21, the hole diameter tolerance and the axial straightness need to be matched with the outer diameter size and the cylindricity of the supporting circular rod 12, so that the supporting circular hole 21 and the supporting circular rod 12 form a clearance fit or a transition fit structure; when assembled, the supporting circular rod 12 can smoothly penetrate into the supporting circular hole 21, and after assembly, there is no obvious radial shaking, and the inner wall of the supporting circular hole 21 and the outer wall of the supporting circular rod 12 are tightly fitted, providing radial positioning and axial support for the prestressed bearing ring 2.

[0048] As shown in Figure 6 , Figure 8 and Figure 9 , the counterweight bearing plate 3 is fixedly arranged on the prestressed bearing ring 2 by a welding process, symmetrical supporting moving grooves 31 are formed on both sides of the counterweight bearing plate 3, the inner wall of the supporting moving groove 31 is smooth without burrs, a supporting matching block 32 is integrally formed and fixedly arranged at the lower end of the counterweight bearing plate 3, a plug-in bearing hole 33 is formed on the supporting matching block 32, an assembly sleeve 34 is welded and fixed at the lower end of the supporting matching block 32 by a welding process, the plug-in bearing hole 33 and the assembly sleeve 34 are through-penetrating, an inner bearing strip 35 is integrally formed and fixedly arranged inside the assembly sleeve 34, a supporting ring sleeve 36 is integrally formed and fixedly arranged at the upper end of the inner bearing strip 35, in addition, a protruding bearing block 37 is integrally formed and fixedly arranged on the assembly sleeve 34, a matching connecting hole 38 is formed on the protruding bearing block 37, and the matching connecting hole 38 and the assembly sleeve 34 are through-penetrating, as shown in Figure 10 , the prestressed steel bar 9 is supported by the assembly sleeve 34, that is, the prestressed steel bar 9 is plugged into the supporting ring sleeve 36 in the assembly sleeve 34 when supporting the prestressed steel bar 9.

[0049] As shown in Figure 3 , Figure 4 and Figure 5 , the steel bar end clamping and fixing assembly comprises a movable bearing block 4, a driving ring sleeve 5 and a second clamping ring plate 6, the movable bearing block 4 is movably installed on the counterweight bearing plate 3, specifically, a plug-in bearing rod 43 is welded and fixed on the movable bearing block 4 by a welding process, the plug-in bearing rod 43 is plugged into the plug-in bearing hole 33, the movable bearing block 4 is limited by the cooperation of the plug-in bearing rod 43 and the plug-in bearing hole 33, the plug-in bearing rod 43 can move along the plug-in bearing hole 33, in addition, a first connecting spring 44 is sleeved on the plug-in bearing rod 43, the two ends of the first connecting spring 44 are welded and fixed on the movable bearing block 4 and the supporting matching block 32 respectively by a welding process, the setting of the first connecting spring 44 not only can stabilize the position of the movable bearing block 4, but also can reset the movable bearing block 4.

[0050] As shown in Figure 5 and Figure 11As shown, the driving ring sleeve 5 is movably mounted on the counterweight bearing plate 3, the second clamping ring plate 6 is mounted in the prestressed bearing ring 2, and two second clamping ring plates 6 form a group, and one prestressed steel bar 9 is clamped by the two second clamping ring plates 6 in the group.

[0051] As shown in the drawings, Figure 10 The first clamping ring plate 45 is fixedly provided on the plug-in bearing rod 43 of the movable bearing block 4 by welding process, and the first clamping ring plate 45 is in the assembly sleeve 34. When the first clamping ring plate 45 clamps the prestressed steel bar 9, the first clamping ring plate 45 moves to contact the prestressed steel bar 9, so that the first clamping ring plate 45 and the support ring sleeve 36 can tightly clamp the prestressed steel bar 9.

[0052] As shown in the drawings, Figure 10 And Figure 12 The driving ring sleeve 5 is movably connected with the movable bearing block 4, and the movable bearing block 4 drives the driving ring sleeve 5 to move. Specifically, the movable bearing block 4 is symmetrically fixed on the movable bearing block 4 by welding process, and the inner wall of the movable cooperation frame 42 is smooth without burrs. The driving ring sleeve 5 is symmetrically fixed on the driving ring sleeve 5 by welding process, and the movable support plate 53 is integrally formed and fixed on the cooperation support strip 52. The surface of the movable support plate 53 is smooth without burrs, and the movable support plate 53 is partially inserted into the support moving groove 31 and in contact with the inner wall of the support moving groove 31. Thus, the movable support plate 53 and the support moving groove 31 can support the driving ring sleeve 5, so that it can be movably mounted on the counterweight bearing plate 3, and the movable support plate 53 can move in the support moving groove 31, so that the driving ring sleeve 5 can move. The movable bearing column 54 is fixed on the cooperation support strip 52 by welding process, and the surface of the movable bearing column 54 is smooth without burrs. The movable bearing column 54 is inserted into the movable cooperation frame 42 and in contact with the inner wall of the movable cooperation frame 42. When the movable bearing block 4 moves, the movable cooperation frame 42 also moves, and the movable cooperation frame 42 drives the movable bearing column 54 to move, so that the driving ring sleeve 5 moves.

[0053] As shown in the drawings, Figure 2 、 Figure 5 And Figure 12As shown, the second clamping ring plate 6 is movably connected with the driving ring sleeve 5, and the second clamping ring plate 6 is driven to move by the driving ring sleeve 5 to clamp the prestressed steel bar 9. Specifically, the protruding connecting plates 55 are symmetrically welded and fixed on the driving ring sleeve 5, the connecting movable rods 56 are hinged on the protruding connecting plates 55, the second clamping ring plate 6 is movably connected with the connecting movable rods 56, the moving support rods 61 are welded and fixed on the second clamping ring plate 6, the connecting blocks 62 are welded and fixed on the moving support rods 61 away from the second clamping ring plate 6 by welding process, the connecting blocks 62 are hinged with the connecting movable rods 56, the inner ring supporting plates 26 are welded and fixed in the prestressed ring 2 by welding process, the moving supporting holes 27 are formed in the inner ring supporting plates 26, the moving support rods 61 on the second clamping ring plate 6 are inserted into the moving supporting holes 27, the moving support rods 61 can be limited by the cooperation of the moving support rods 61 and the moving supporting holes 27, so as to limit the second clamping ring plate 6. Under the limitation of the moving supporting holes 27, when one driving ring sleeve 5 moves, two second clamping ring plates 6 in a group can move towards or away from each other by the connecting movable rods 56. When the two second clamping ring plates 6 in a group move towards each other, the prestressed steel bar 9 can be clamped and fixed. When the two second clamping ring plates 6 in a group move away from each other, the prestressed steel bar 9 can be released.

[0054] As Figure 11 and Figure 12As shown, the rebar end clamping and fixing assembly also includes a clamping mating strip 7, which is located in the assembly 34. The clamping mating strip 7 is moved by the driving ring sleeve 5 to clamp the prestressed rebar 9. Specifically, a mating support rod 71 is welded to the clamping mating strip 7. The mating support rod 71 is inserted into the mating connecting hole 38, and the mating support rod 71 and the mating connecting hole 38 can restrict the clamping mating strip 7. The mating support rod 71 can move along the mating connecting hole 38. Additionally, part of the mating support rod 71 protrudes from the outside of the assembly 34. A hemispherical support block 72 is welded to the end of the mating support rod 71 away from the clamping mating strip 7. The surface of the hemispherical support block 72 is smooth and burr-free. A second connecting spring 73 is sleeved on the mating support rod 71. The second connecting spring 73 is located on the outside of the assembly 34, and the second... The two ends of the connecting spring 73 are welded and fixed to the hemispherical support block 72 and the protruding support block 37, respectively. The second connecting spring 73 shell is used to reset the clamping mating strip 7. A conical inner support platform 51 is integrally formed and fixed at the end of the drive ring sleeve 5 away from the protruding connecting plate 55. The surface of the conical inner support platform 51 is smooth and burr-free, and the conical inner support platform 51 is in contact with the hemispherical support block 72. In this way, when the drive ring sleeve 5 moves, it can drive the hemispherical support block 72 to move under the action of the conical inner support platform 51, and then drive the clamping mating strip 7 to move. Multiple clamping mating strips 7 are arranged around the prestressed steel bar 9. When the conical inner support platform 51 drives the clamping mating strips 7 to move, the multiple clamping mating strips 7 cooperate with each other to clamp and fix the prestressed steel bar 9 around its circumference. The number of clamping mating strips 7 can be set according to actual needs.

[0055] like Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 13 As shown, the clamping drive assembly is a drive fitting sleeve 8. The drive fitting sleeve 8 is installed on the prestressed bearing ring 2 and cooperates with the movable bearing block 4 to drive the movable bearing block 4 to move. Specifically, a first thread 22 is provided on the prestressed bearing ring 2, and a protruding bearing ring 23 is integrally formed and fixed at one end of the prestressed bearing ring 2. A connecting bracket 24 is welded and fixed on the protruding bearing ring 23 by welding process. A limit stop ring 25 is welded and fixed on the connecting bracket 24. A second thread 81 is provided at one end of the drive fitting sleeve 8. The second thread 81 cooperates with the first thread 22, so that the drive fitting sleeve 8 is threadedly fitted onto the prestressed bearing ring 2. A support ring platform 82 is integrally formed and fixed on the drive fitting sleeve 8. A fitting ring groove 83 is opened on the support ring platform 82. An inclined protrusion 831 is integrally formed and fixed inside the fitting ring groove 83. The surface of the inclined protrusion 831 is smooth and burr-free. Figure 10As shown, a mobile matching rod 41 is also welded and fixed on the movable block 4, and the surface of the mobile matching rod 41 is smooth and free of burrs, like Figure 13 As shown, the mobile matching rod 41 is inserted in the matching ring groove 83 and is always not separated from the matching ring groove 83.

[0056] In the installation of prestressed steel bar 9, the installation of prestressed bearing ring 2 is carried out, that is, the prestressed bearing ring 2 is sleeved on the support round rod 12 through the support round hole 21, and the prestressed bearing ring 2 is in contact with the support round table 11, then the prestressed steel bar 9 is inserted from the support ring sleeve 36 at one end of the steel mold body 1, and passes through the steel mold body 1 until it is inserted into the support ring sleeve 36 at the other end of the steel mold body 1, at this time the prestressed steel bar 9 can be supported and positioned under the action of the support ring sleeve 36, then the synchronous clamping and fixing of multiple prestressed steel bars 9 can be carried out, that is, the driving matching sleeve 8 on the prestressed bearing ring 2 is rotated to move under the action of the thread, with the rotation and movement of the driving matching sleeve 8, the moving matching rod 41 on the movable bearing block 4 will be in contact with the inclined convex strip 831, so that the moving matching rod 41 will be moved under the action of the inclined convex strip 831, until the driving matching sleeve 8 is in contact with the limiting stop ring 25, at this time the driving matching sleeve 8 will not be able to move any more, and with the movement of the moving matching rod 41, the movable bearing block 4 will also move in the direction of the support matching block 32, so that the first connecting spring 44 is in a compressed state, with the movement of the movable bearing block 4, the first clamping ring plate 45 will also move, so that the first clamping ring plate 45 will be in contact with the prestressed steel bar 9, so that the prestressed steel bar 9 can be clamped and fixed under the cooperation of the first clamping ring plate 45 and the prestressed steel bar 9, and with the movement of the movable bearing block 4, the moving bearing column 54 will also move under the action of the moving matching frame 42, with the movement of the moving bearing column 54, the driving ring sleeve 5 will also move, and with the movement of the driving ring sleeve 5, two second clamping ring plates 6 in a group will move towards each other under the action of the connecting movable rod 56, so that the two second clamping ring plates 6 will be in contact with the prestressed steel bar 9 between them, and finally the prestressed steel bar 9 is clamped and fixed, in addition, in the process of movement of the driving ring sleeve 5, the hemispherical bearing block 72 will move in the direction of the assembly sleeve 34 under the action of the conical inner bearing platform 51, with the movement of the hemispherical bearing block 72, the second connecting spring 73 will be in a compressed state, and at the same time the clamping matching strip 7 will also move in the direction of the prestressed steel bar 9, with the movement of the clamping matching strip 7, the clamping matching strip 7 will be in contact with the prestressed steel bar 9, and then the prestressed steel bar 9 can be clamped and fixed under the action of multiple clamping matching strips 7, so that the clamping and fixing strength of the prestressed steel bar 9 can be fully guaranteed under the action of multiple clamping and fixing, after one end of the prestressed steel bar 9 is fixed, the other end of the prestressed steel bar 9 can be clamped and fixed, when both ends of the prestressed steel bar 9 are clamped and fixed, prestressed bearing ring 2 can be applied with tension through the jack, and then multiple prestressed steel bars 9 can be synchronously tensioned through the prestressed bearing ring 2, since the prestressed bearing ring 2 is installed at both ends of the steel mold body 1, the two ends of the prestressed steel bar 9 can be synchronously tensioned, of course, one end of the prestressed steel bar 9 can also be tensioned,When tensioning one end, the prestressed bearing ring 2 at the other end of the prestressed steel bar 9 will be in contact with the supporting circular platform 11, and the prestressed bearing ring 2 is limited by the supporting circular platform 11, thereby smoothly realizing the tensioning of one end of the prestressed steel bar 9, which is simple, convenient and fast. In addition, when it is necessary to disassemble the prestressed bearing ring 2, the driving fitting sleeve 8 is reversely rotated, and the reverse movement and rotation of the driving fitting sleeve 8 will make the movable bearing block 4 reset under the action of the first connecting spring 44, and at the same time it will also drive the driving ring sleeve 5 to reset and move, and with the reset movement of the driving ring sleeve 5, it will drive the two second clamping ring plates 6 in the group to move in opposite directions, and under the action of the second connecting spring 73, it will also drive the clamping fitting strip 7 to reset and move, so that the prestressed steel bar 9 can be released.

[0057] While the embodiments of the application have been shown and described, it is to be understood that the embodiments can be varied, modified, substituted and changed in many ways, and that the scope of the application is not limited to the embodiments but is defined by the appended claims and their equivalents.

Claims

1. A pole steel form having a ring linkage prestressing mechanism, characterised in that: Include: Steel die body, prestressed steel bars are inserted in the inside of the steel die body; Steel bar support positioning assembly, the steel bar support positioning assembly is symmetrically installed at both ends of the steel die body, and is used for supporting the prestressed steel bars; Steel bar end clamping fixing assembly, the steel bar end clamping fixing assembly is installed on the steel bar support positioning assembly, and is used for clamping and fixing the end of the prestressed steel bar; Clamping driving assembly, the clamping driving assembly is also installed on the steel bar support positioning assembly, and cooperates with the steel bar end clamping fixing assembly to drive the steel bar end clamping fixing assembly to move.

2. The pole steel form with ring linkage prestressing mechanism according to claim 1, characterized in that: The both ends of the steel die body are symmetrically provided with support circular tables, the support circular tables are fixedly provided with support circular rods, and the steel bar support positioning assembly is supported by the support circular rods.

3. The pole steel form with ring linkage prestressing mechanism according to claim 2, characterized in that: The steel bar support positioning assembly comprises a prestressed bearing ring, and the prestressed bearing ring is sleeved on the support circular rod. Counterweight bearing plate, the counterweight bearing plate is fixedly arranged on the prestressed bearing ring.

4. The pole mold with ring linkage prestressing mechanism according to claim 3, characterized in that: A support circular hole is formed in the prestressed bearing ring, and the support circular hole cooperates with the support circular rod to support the prestressed bearing ring.

5. The pole steel form with ring linkage prestressing mechanism according to claim 4, characterized in that: The counterweight bearing plate is fixedly provided with an assembly sleeve, and the prestressed steel bars are supported by the assembly sleeve.

6. A pole form with ring linkage prestressing mechanism according to claim 5, characterized in that: The steel bar end clamping fixing assembly comprises a movable bearing block, and the movable bearing block is movably installed on the counterweight bearing plate. Driving ring sleeve, the driving ring sleeve is also movably installed on the counterweight bearing plate. Second clamping ring plate, the second clamping ring plate is installed in the prestressed bearing ring.

7. A steel form for electric poles with ring linkage prestressing mechanism according to claim 6, characterized in that: The first clamping ring plate is fixedly arranged on the movable bearing block, and the prestressed steel bars are clamped by the first clamping ring plate.

8. The pole mold with ring linkage prestressing mechanism according to claim 7, characterized in that: The driving ring sleeve is movably connected with the movable bearing block, and the movable bearing block drives the driving ring sleeve to move.

9. The pole mold with ring linkage prestressing mechanism according to claim 8, characterized in that: The second clamping ring plate is movably connected with the driving ring sleeve, and the second clamping ring plate is driven by the driving ring sleeve to move and clamp the prestressed steel bars.

10. The pole mold with ring linkage prestressing mechanism according to claim 9, characterized in that: The steel bar end clamping fixing assembly further comprises a clamping matching strip, the clamping matching strip is in the assembly sleeve, and the clamping matching strip is driven by the driving ring sleeve to move, so that the prestressed steel bars are clamped.

11. A pole steel form having a ring linkage prestressing mechanism as claimed in claim 10, characterized in that: The clamping driving assembly is a driving matching sleeve, and the driving matching sleeve is installed on the prestressed bearing ring and cooperates with the movable bearing block to drive the movable bearing block to move.

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