Tensioning tail plate device
By setting baffles and rings on the tail plate of the prefabricated piles to cover the through holes on the tail plate, the safety hazards of the porous head plate and tail plate popping out of the steel bars during the tensioning process are solved, achieving higher safety and flexibility.
Patent Information
- Application Number
- CN202421611809.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-09
AI Technical Summary
During the production process of prefabricated piles, the porous head plate and tail plate are likely to cause the steel bars to pop out suddenly from the holes during the tensioning process, causing accidental damage.
A tensioning tail plate device is designed, by providing a baffle on the tail plate, and a circular ring is provided on the baffle, and the axial projection surface of the circular ring covers the first through-hole on the tail plate, thereby preventing the steel bar from popping out.
It effectively prevents the steel bars from popping out of the tail plate hole after being pulled off, which improves safety, and adapts to different main rib positions by setting the second through hole and connecting hole, enhancing the flexibility and stability of the device.
Smart Images
Figure CN222920801U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tensioning tail plate device, belonging to the technical field of pipe pile production. Background Art
[0002] In the production process of precast piles, the head plate and the tail plate are crucial components. They are not only used to fix the steel reinforcement cage but also play key roles in connection, safety, and operation. The head plate and the tail plate are usually installed at both ends of the precast pile mold to ensure the stability and integrity of the entire structure.
[0003] The design and installation of the head plate and the tail plate must be precise. As key components of the mold, the position and size of each bolt hole must precisely match the arrangement of the steel reinforcement cage to ensure a firm connection and stable support.
[0004] Generally, the production of precast piles needs to adapt to different engineering requirements. For this reason, the design of the head plate and the tail plate often takes into account a porous structure to flexibly install and adjust steel reinforcement cages with different reinforcement arrangements. This design provides certain convenience and adaptability but also poses safety hazards.
[0005] During the installation process, the head plate and the tail plate are usually connected to the steel reinforcement cage through multiple bolt holes. These hole positions are designed flexibly to adapt to steel reinforcement cages of different sizes and types, thus meeting the needs of various projects. However, when tensioning with a porous head and tail plate, when the steel bars in the steel reinforcement cage are pulled off, the steel bars will suddenly pop out from the holes in the tail plate, causing accidental injuries to workers or other personnel. Summary of the Invention
[0006] Object of the Invention: To solve the above technical problems, the utility model provides a tensioning tail plate device. The device blocks the first through hole on the tail plate through the circular ring part on the baffle plate to prevent the steel bar from suddenly popping out of the tail plate hole and causing accidental injury.
[0007] Technical Solution: A tensioning tail plate device includes a tail plate body and a baffle plate. The tail plate body and the baffle plate are detachably connected along the axial direction. The tail plate body is provided with a plurality of first through holes along the circumferential direction. The baffle plate includes a circular ring part, and the axial projection plane of the circular ring part covers the axial projection plane of the first through hole.
[0008] The utility model sets a baffle plate on the tail plate. The main reinforcement passes through the corresponding first through hole to be connected with the tail plate. The circular ring part on the baffle plate blocks the first through hole, which can prevent the main reinforcement from suddenly popping out of the tail plate hole after being pulled off and improve safety.
[0009] Preferred option: To enable the tail plate to adapt to different main bar positions, a second through hole is further provided on the tail plate. The second through hole is adjacent to or communicated with the first through hole, and the axial projection plane of the circular ring portion covers the axial projection plane of the second through hole.
[0010] Adjacent arrangement of the second through hole and the first through hole can adapt to the main bars at adjacent positions. When the second through hole and the first through hole are communicated, after the main bar passes through one of the through holes, rotate the tail plate body so that the upset head of the main bar is stuck in the other through hole to meet the installation requirements of more main bar positions.
[0011] Preferred option: To adapt to the main bar position, the centers of the second through hole and the first through hole are located on the same circumference.
[0012] Preferred option: To facilitate the stable connection between the tail plate and the baffle, two first connection holes are evenly provided on the circular ring portion, and the first connection holes and their corresponding first through holes are coaxially arranged.
[0013] Preferred option: To enable the tail plate and the circular ring portion to be adaptively installed, a second connection hole is further provided on the circular ring portion. The included angle between the second connection hole and any one of the first connection holes is 10 - 30°, and the second connection hole and its corresponding first through hole are coaxially arranged.
[0014] When the first connection hole cannot correspond to the first through hole, since the included angle between the second connection hole and any one of the first connection holes is 10 - 30° and the angular deviation is small, when the second connection hole can match the first through hole, bolt the first through hole through any one of the first connection hole and the second connection hole respectively to improve the adaptability of the installation of the tail plate and the circular ring portion.
[0015] Preferred option: To leave an installation gap for the tensioning bolt, the outer periphery of the first connection hole and the second connection hole close to the tail plate body protrudes from the baffle to form a support portion, and the thickness of the support portion is greater than or equal to the thickness of the tensioning bolt nut.
[0016] A support portion is provided between the baffle and the tail plate. The bolt passes through the support portion and the first connection hole in sequence, or passes through the support portion and the second connection hole in sequence. At the same time, the thickness of the support portion is greater than or equal to the thickness of the tensioning bolt nut. If a washer is installed on the tensioning bolt, the thickness of the support portion is greater than or equal to the sum of the thickness of the tensioning bolt nut and the thickness of the washer to prevent installation interference and reduce the installation stability.
[0017] Preferred option: To facilitate pouring out the surplus slurry, a central hole is provided on the tail plate, and the diameter of the central hole is smaller than the inner diameter of the circular ring portion.
[0018] Preferred option: To save costs while ensuring the stiffness of the baffle, the thickness of the baffle is 1 / 2 - 1 / 4 of the thickness of the tail plate.
[0019] Preferred option: In order to save costs while ensuring the stiffness of the baffle, the outer diameter of the baffle is smaller than that of the tail plate.
[0020] Beneficial effects: By providing a baffle on the tail plate in the present utility model, the main reinforcement passes through the first through hole at the corresponding position and is connected to the tail plate. The circular ring portion on the baffle blocks the first through hole, which can prevent the main reinforcement from suddenly popping out of the tail plate hole after being pulled off, improving safety. At the same time, in order to make the tail plate adapt to different positions of the main reinforcement, a second through hole is provided to adapt to the position of the main reinforcement; in order to enable the tail plate and the circular ring portion to be adaptively installed, a second connection hole is provided as an alternative installation hole to adapt to the steel cage with different reinforcement arrangements; a support portion is provided to leave an installation gap for the tensioning bolt, preventing installation interference and reducing the installation stability. Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.
[0022] Figure 1 It is a schematic structural diagram of the tail plate device of the present utility model;
[0023] Figure 2 It is a structural diagram of the tail plate of the present utility model;
[0024] Figure 3 It is a schematic diagram of the baffle of the present utility model. Detailed Embodiments
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.
[0027] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.
[0028] As Figures 1 - 3 shown, a tensioning tail plate device includes a tail plate body 1 and a baffle 2. The tail plate body 1 and the baffle 2 are detachably connected along the axial direction. The tail plate body 1 is provided with a plurality of first through holes 11 along the circumferential direction. The baffle 2 includes an annular portion 21, and the axial projection plane of the annular portion 21 covers the axial projection plane of the first through holes 11.
[0029] By providing the baffle 2 on the tail plate, the main reinforcement passes through the corresponding first through holes 11 to be connected to the tail plate. The annular portion 21 on the baffle 2 blocks the first through holes 11, which can prevent the main reinforcement from suddenly popping out of the tail plate holes after being pulled off, thus improving safety.
[0030] In order to make the tail plate adapt to different positions of the main reinforcement, a second through hole 12 is further provided on the tail plate. The second through hole 12 is arranged adjacent to or communicated with the first through hole 11. The axial projection plane of the annular portion 21 covers the axial projection plane of the second through hole 12.
[0031] Arranging the second through hole 12 adjacent to the first through hole 11 can adapt to the main reinforcement at adjacent positions. Connecting the second through hole 12 and the first through hole 11 in communication. After the main reinforcement passes through one of the through holes, rotate the tail plate body 1 so that the upset head of the main reinforcement is stuck in the other through hole, meeting the installation requirements of more main reinforcement positions.
[0032] In order to adapt to the position of the main reinforcement, the centers of the second through holes and the centers of the first through holes are located on the same circumference.
[0033] In order to facilitate the stable connection between the tail plate and the baffle 2, two first connection holes 211 are evenly provided on the annular portion 21. The first connection holes 211 and the corresponding first through holes 11 are coaxially arranged.
[0034] In order to enable the tail plate and the annular portion 21 to be adaptively installed, a second connection hole 212 is further provided on the annular portion 21. The included angle between the second connection hole 212 and any one of the first connection holes 211 is 10 - 30°. The second connection hole 212 and the corresponding first through hole 11 are coaxially arranged.
[0035] When the first connection hole 211 cannot correspond to the first through hole 11, since the included angle between the second connection hole 212 and any first connection hole 211 is 10 - 30°, the angular deviation is small. When the second connection hole 212 can match the first through hole 11, the first through hole 11 is bolted through any first connection hole 211 and the second connection hole 212 respectively, improving the adaptability of the installation of the tail plate and the circular ring part 21.
[0036] To leave an installation gap for the tensioning bolt, the outer perimeters of the first connection hole 211 and the second connection hole 212 near the side of the tail plate body 1 protrude from the baffle 2 to form a support part 3, and the thickness of the support part 3 is greater than or equal to the thickness of the tensioning bolt nut.
[0037] A support part 3 is arranged between the baffle 2 and the tail plate. The bolt passes through the support part 3 and the first connection hole 211 in sequence, or passes through the support part 3 and the second connection hole 212 in sequence. At the same time, the thickness of the support part 3 is greater than or equal to the thickness of the tensioning bolt nut. If a washer is installed on the tensioning bolt, the thickness of the support part 3 is greater than or equal to the sum of the thickness of the tensioning bolt nut and the thickness of the washer, preventing installation interference and reducing the installation stability.
[0038] To facilitate pouring out the surplus slurry, a central hole 15 is provided on the tail plate, and the diameter of the central hole 15 is smaller than the inner diameter of the circular ring part 21.
[0039] To save costs while ensuring the stiffness of the baffle 2, the thickness of the baffle 2 is 1 / 2 - 1 / 4 of the thickness of the tail plate.
[0040] To save costs while ensuring the stiffness of the baffle 2, the outer diameter of the baffle 2 is smaller than the outer diameter of the tail plate.
[0041] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and reference can be made to the description in the method part for related parts.
[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A tail plate tensioning device, characterized in that: The invention comprises a tailgate body (1) and a baffle (2), wherein the tailgate body (1) and the baffle (2) are detachably connected in the axial direction, the tailgate body (1) is provided with a plurality of first through holes (11) in the circumferential direction, and the baffle (2) comprises an annular portion (21), wherein the axial projection surface of the annular portion (21) covers the axial projection surface of the first through holes (11).
2. The tailgate tensioning device according to claim 1, characterized in that: The tail plate is also provided with a second through hole (12), the second through hole (12) being arranged adjacent to or in communication with the first through hole (11), and the axial projection surface of the annular portion (21) covers the axial projection surface of the second through hole (12).
3. The tailgate tensioning device according to claim 2, characterized in that: The center of the second through hole (12) and the center of the first through hole (11) are located on the same circumference.
4. The tailgate tensioning device according to claim 2, characterized in that: Two first connection holes (211) are evenly arranged on the annular portion (21), and the first connection holes (211) and the corresponding first through holes (11) are coaxially arranged.
5. The tailgate tensioning device according to claim 4, characterized in that: The annular portion (21) is further provided with a second connection hole (212); the included angle between the second connection hole (212) and any first connection hole (211) is 10-30°; the second connection hole (212) and the corresponding first through hole (11) are coaxially arranged.
6. The tailgate tensioning device according to claim 4, characterized in that: The outer periphery of the first connection hole (211) and the second connection hole (212) close to one side of the tail plate body (1) protrudes from the baffle (2) to form a support portion (3), and the thickness of the support portion (3) is greater than or equal to the thickness of the tensioning bolt nut.
7. The tailgate tensioning device according to claim 1, characterized in that: The tail plate is provided with a central hole (15), and the diameter of the central hole (15) is smaller than the inner diameter of the annular portion (21).
8. The tailgate tensioning device according to claim 1, characterized in that: The thickness of the baffle (2) is 1 / 2 to 1 / 4 of the thickness of the tail plate.
9. The tailgate tensioning device according to claim 1, characterized in that: The outer diameter of the baffle (2) is smaller than the outer diameter of the tail plate.