Special blocking plate for cement concrete electric pole

Abstract

This utility model discloses a special retaining plate for cement concrete utility poles, including a conical body and a collection bin closed at one end. A flange is welded to the outer edge of the large-diameter end of the conical body, and an equal-diameter insertion section is welded to the small-diameter end. The equal-diameter insertion section is concentrically inserted into the opening side of the collection bin. A precision bearing is installed between the equal-diameter insertion section and the collection bin, allowing the conical body and the collection bin to rotate relative to each other. The center of gravity of the collection bin is shifted to the bottom, and a discharge port is opened on the bottom side. This utility model solves the problem of steel bars being ejected during concrete pumping or high-speed centrifugal pumping, causing personal injury and product defects requiring rework. When steel bars are ejected, the conical body's inclined surface provides friction buffering before pressing against the rear wall of the collection bin, preventing direct ejection of steel bars and potential safety hazards. Furthermore, the slurry ejected internally is collected in the collection bin, which does not rotate. The waste slurry is discharged uniformly along the discharge port of the collection bin to a designated location or container, preventing environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of power pole technology, and in particular to a special retaining plate for cement concrete poles. Background Technology

[0002] Currently, the main structure of cement poles is a precast hollow ring-shaped concrete pole with a steel reinforcement cage in the middle and high-strength concrete around the perimeter. The specific production steps are: making the steel reinforcement cage - installing baffles at both ends - pouring - closing the mold - centrifugal compaction - steam curing - demolding - quality inspection - on-site curing - leaving the factory.

[0003] Currently, the technologies for concrete mix design, rebar cage binding, and curing are relatively mature. However, during the centrifugal stage, since the rebar passes through the baffle, current technology uses a head-forming machine to heat-melt and form heads at both ends of the rebar to prevent it from being ejected during centrifugal rotation or when pumping concrete. This head-forming process secures the rebar to the baffle.

[0004] However, the fabrication of the pier head involves heating and melting the reinforcing steel bars, then cooling and shaping them. This process demands a high level of skill from the workers, and it alters the internal force distribution of the steel bars, leading to stress concentration at the pier head. Because the reinforcing steel bars are not perfectly parallel within the mold, uneven stress distribution occurs, causing the pier head to fracture and lose its binding function. Furthermore, using high-speed pumps to deliver concrete within the mold, or employing high-speed centrifugal pumps, can cause the reinforcing steel bars to be ejected from the mold through the baffles, resulting in personal injury.

[0005] Furthermore, since the holes in the baffle are larger than the reinforcing bars, making it easier for the reinforcing bars to pass through, during centrifugation, the concrete slurry will flow out of the holes in large quantities under high-speed centrifugation, which will pollute the environment and cause health hazards to personnel on site. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a special retaining plate for cement concrete utility poles, so as to solve the technical problems in the background art mentioned above.

[0007] The technical solution of this utility model is as follows:

[0008] A special retaining plate for cement concrete utility poles includes a conical body and a material collection bin closed at one end. A flange is welded to the outer edge of the large-diameter end of the conical body, and an equal-diameter plug-in section is welded to the small-diameter end. The equal-diameter plug-in section is concentrically inserted into the opening side of the material collection bin. A precision bearing is installed between the equal-diameter plug-in section and the material collection bin, so that the conical body and the material collection bin can rotate relative to each other. The center of gravity of the material collection bin is shifted to the bottom side, and a discharge port is opened on the bottom side.

[0009] Furthermore, the silo is a rotating body, and a counterweight is added to the bottom to shift the center of gravity of the silo to the bottom side.

[0010] Furthermore, the collection bin consists of an installation section and a collection section of equal diameter, with the collection section having a larger diameter than the installation section. The installation section and the collection section are connected by a transition section with a variable diameter section. The bearing is fixed in the installation section, and the discharge port and counterweight are both located in the collection section. The outlet of the plug-in section extends beyond the installation section.

[0011] Furthermore, a sloping eave is provided on the outer edge of the plug-in section outlet.

[0012] The advantages of this utility model are:

[0013] This invention solves the problem of steel bars being ejected during concrete pumping or high-speed centrifugal pumping, causing personal injury and product defects requiring rework. The conical body's inclined surface provides friction buffering when the steel bars are ejected, before pressing against the rear wall of the aggregate bin, preventing the steel bars from being ejected directly and causing safety hazards. Furthermore, the slurry ejected from the inside is collected in the aggregate bin, which does not rotate. The waste slurry is then uniformly discharged into a designated location or container through the discharge port of the aggregate bin, preventing environmental pollution. Attached Figure Description

[0014] Figure 1 A schematic diagram of the assembly of the reinforcing cage and baffle for an existing cement concrete utility pole;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the installation of this utility model.

[0017] In the diagram: 1-Reinforcing cage, 11-Abutment head, 2-Baffle, 3-Conical body, 31-Flange, 32-Equal diameter plug section, 33-Sloping eaves, 4-Collection bin, 41-Installation section, 42-Reducing diameter section, 43-Collection section, 44-Discharge port, 45-Counterweight block. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figure 1-3 As shown:

[0020] A special retaining plate for cement concrete utility poles includes a conical body 3 and a material collection bin 4 closed at one end. A flange 31 is welded to the outer edge of the large-diameter end of the conical body 3, and an equal-diameter insertion section 32 is welded to the small-diameter end. The equal-diameter insertion section 32 is concentrically inserted into the opening side of the material collection bin 4. A precision bearing is installed between the equal-diameter insertion section 32 and the material collection bin 4 so that the conical body 3 and the material collection bin 4 can rotate relative to each other. The center of gravity of the material collection bin 4 is shifted to the bottom side, and a discharge port 44 is opened on the bottom side.

[0021] To facilitate processing, the collection bin 4 is a rotating body, and the center of gravity of the collection bin 4 is shifted to the bottom by adding a counterweight block 45 at the bottom.

[0022] As an improved design, the silo 4 consists of an installation section 41 and a collection section 43 of equal diameter, with the collection section 43 having a larger diameter than the installation section 41. The installation section 41 and collection section 43 are connected by a transition section 42. The bearing is fixed to the installation section 41, and the discharge port 44 and counterweight 45 are both located in the collection section 43. The outlet of the insertion section extends beyond the installation section 41. This allows the slurry to collect in the collection section 43 and be discharged promptly through the discharge port 44, preventing the slurry from submerging the installation section 41 and affecting the bearing's lifespan. Additionally, a sloping eaves 33 can be provided at the outer edge of the insertion section outlet to prevent backflow along the outer wall of the insertion section to the bearing. Since the insertion section rotates during operation, the possibility of wall flow under centrifugal force is very small; the sloping eaves 33 serve as a safety feature.

[0023] When using this utility model, the flange 31 is fixed to the baffle 2 of the steel cage 1 with bolts (a bolt hole can be made on the baffle 2 at the corresponding position, and a bolt can be inserted, or the bolt can be directly welded to the baffle 2).

[0024] In the centrifugal process, the conical body 3 rotates with the steel cage 1, while the collection bin 4 does not rotate and keeps the discharge port 44 facing downward due to the precision bearing and center of gravity.

[0025] This invention solves the problem of steel bars being ejected during concrete pumping or high-speed centrifugal pumping, causing personal injury and product defects requiring rework. When the pier head 11 breaks, the conical body 3 can use its inclined surface to provide friction buffer when the steel bars are ejected, and then press against the rear wall of the aggregate bin 4, avoiding the safety hazards caused by the direct ejection of steel bars. Secondly, the slurry ejected from inside will be collected in the aggregate bin 4. The aggregate bin 4 will not rotate, and the waste slurry will be uniformly discharged to a designated location or container along the discharge port 44 of the aggregate bin 4, without polluting the environment.

[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A special retaining plate for cement concrete utility poles, characterized in that: The device includes a conical body and a collection bin that is closed at one end. A flange is welded to the outer edge of the large-diameter end of the conical body, and an equal-diameter plug-in section is welded to the small-diameter end. The equal-diameter plug-in section is concentrically inserted into the opening side of the collection bin. A precision bearing is installed between the equal-diameter plug-in section and the collection bin, so that the conical body and the collection bin can rotate relative to each other. The center of gravity of the collection bin is shifted to the bottom side, and a discharge port is opened on the bottom side.

2. The special reinforcing plate for cement concrete utility poles according to claim 1, characterized in that: The collection bin is a rotating body, and a counterweight is added to the bottom to shift the center of gravity of the collection bin to the bottom side.

3. The special reinforcing plate for cement concrete utility poles according to claim 2, characterized in that: The collection bin consists of an installation section and a collection section of equal diameter, with the collection section having a larger diameter than the installation section. The installation section and the collection section are connected by a variable diameter section. The bearing is fixed in the installation section, and the discharge port and counterweight are both located in the collection section. The outlet of the plug-in section extends beyond the installation section.

4. The special retaining plate for cement concrete utility poles according to claim 2, characterized in that: The outer edge of the plug section outlet is provided with a sloping eave.

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