Tensioning pedestal

Abstract

The embodiment of the utility model provides a tensioning pedestal, and relates to the field of precast beam manufacturing. The tensioning pedestal comprises a supporting table, a fixing table, an anchor seat, a connecting rod and a jack. Wherein the supporting table is used for supporting a precast beam, the fixing table is connected to the supporting table, at least part of the anchor seat is embedded in the fixing table, the connecting rod penetrates through the anchor seat and is used for being connected with an inner rib line in the precast beam, and the jack is connected to the anchor seat and is used for tensioning or releasing the connecting rod. According to the tensioning pedestal, the fixing table is connected to the supporting table, and then the anchor bearing is embedded in the fixing table, so that the position stability of the anchor bearing and the fixing table is improved, the situation that the fixing table is prone to upwarp in the tensioning process is avoided, and the tensioning quality is ensured.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated beam production, in particular to a tensioning pedestal. Background Art

[0002] Precast beams usually need to be tensioned during the preparation process to improve their mechanical properties. Tensioning is to apply tension to the precast beams in advance to make them bear compressive stress and then produce a certain deformation to cope with the loads they are subjected to, including but not limited to their own weight, wind load, snow load, earthquake load, etc.

[0003] During the tensioning operation of the existing prefabricated beams, the fixing platform may be warped due to excessive force, thereby affecting the tensioning effect. Utility Model Content

[0004] The utility model provides a tensioning platform, which can prevent the fixed platform from warping during the tensioning process, thereby ensuring the tensioning effect.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] The embodiment of the utility model provides a tensioning platform, which includes:

[0007] Support platform, fixing platform, anchor seat, connecting rod and jack;

[0008] Among them, the support platform is used to support the prefabricated beam, the fixed platform is connected to the support platform, at least part of the anchor seat is embedded in the fixed platform, the connecting rod is arranged through the anchor seat and is used to connect the internal reinforcement line in the prefabricated beam, and the jack is connected to the anchor seat and is used to tension or release the connecting rod.

[0009] Optionally, the tensioning platform also includes a crane, which is slidably connected to the fixed platform, the anchor seat includes a movable seat and at least two fixed seats, the movable seat is connected to the crane and can selectively cooperate with the fixed seat, the jack is connected to the movable seat, the fixed seat is embedded in the fixed platform, and the connecting rod is simultaneously arranged through the movable seat and the fixed seat.

[0010] Optionally, the connecting rod includes a rear rod and at least two groups of front rods, each group of front rods is arranged corresponding to each fixed seat, the front rod is arranged through the fixed seat and is used to connect the internal reinforcement line in the prefabricated beam, the rear rod is arranged through the movable seat and can be selectively connected to the front rod, and the jack is used to tension or release the front rod.

[0011] Optionally, a positioning hole is formed through the fixing seat, and the front rod is accommodated in the positioning hole.

[0012] Optionally, a front limit block is sleeved on the front rod, and the front limit block is used to abut against a side of the fixing seat away from the prefabricated beam when the jack releases the front rod.

[0013] Optionally, a rear limit block is sleeved on the rear rod, and the rear limit block abuts against a side of the movable seat away from the fixed seat.

[0014] Optionally, the front rod is connected to the rear rod via a connecting nut.

[0015] Optionally, the tensioning platform further comprises a guide rail, the guide rail is arranged on the fixed platform, the extension direction of the guide rail is consistent with the arrangement direction of the at least two fixed seats, and the crane is slidably matched with the guide rail.

[0016] Optionally, the fixed platform includes a front support, a rear support and a cross beam, the front support and the rear support are both embedded in the support platform, the cross beam is simultaneously connected to the top ends of the front support and the rear support, the front support is closer to the prefabricated beam relative to the rear support, and at least a portion of the anchor seat is embedded in the front support.

[0017] Optionally, the front support pillar includes at least three sub-columns arranged at intervals, and a spacing cavity is formed between adjacent sub-columns, and at least a part of the anchor seat is accommodated in the spacing cavity.

[0018] The beneficial effects of the tensioning platform of the embodiment of the utility model include, for example:

[0019] The tensioning platform includes: a support platform, a fixed platform, an anchor seat, a connecting rod and a jack; wherein the support platform is used to support the precast beam, the fixed platform is embedded in the support platform, at least part of the anchor seat is embedded in the fixed platform, the connecting rod is penetrated through the anchor seat and is used to connect the inner reinforcement wire in the precast beam, and the jack is sleeved on the connecting rod and is used to tension or release the connecting rod. The tensioning platform improves the position stability of the anchor seat and the fixed platform by connecting the fixed platform to the support platform and the anchor seat is embedded in the fixed platform, thereby preventing the fixed platform from easily tilting during the tensioning process and ensuring the tensioning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1It is a structural schematic diagram of the tensioning platform provided in the embodiment of the utility model at a first viewing angle;

[0022] Figure 2 It is a structural schematic diagram of the tensioning platform provided in the embodiment of the utility model at a second viewing angle.

[0023] Icons: 100-tensioning pedestal; 110-support platform; 120-fixed platform; 121-front pillar; 1211-sub-column; 1212-partition cavity; 122-rear pillar; 123-crossbeam; 130-anchor seat; 131-movable seat; 132-fixed seat; 1321-positioning hole; 140-connecting rod; 141-front rod; 142-rear rod; 143-front limit block; 144-rear limit block; 150-jack; 160-crane; 170-guide rail; 190-precast beam; 191-internal reinforcement line. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0028] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0029] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0030] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0032] Please refer to Figure 1 and Figure 2 The tensioning platform 100 provided in the embodiment of the utility model can solve the above-mentioned problem, which will be described in detail below.

[0033] The tensioning platform 100 includes a supporting platform 110, a fixing platform 120, an anchor seat 130, a connecting rod 140 and a jack 150;

[0034] Among them, the support platform 110 is used to support the prefabricated beam 190, the fixed platform 120 is connected to the support platform 110, at least part of the anchor seat 130 is embedded in the fixed platform 120, the connecting rod 140 is set through the anchor seat 130 and is used to connect the internal reinforcement line 191 in the prefabricated beam 190, and the jack 150 is connected to the anchor seat 130 and is used to tension or release the connecting rod 140.

[0035] The tensioning platform 100 embeds the fixing platform 120 in the supporting platform 110 and the anchor seat 130 in the fixing platform 120, thereby improving the position stability of the anchor seat 130 and the fixing platform 120, avoiding the fixing platform 120 from easily warping up during the tensioning process, and ensuring the tensioning quality.

[0036] Furthermore, in order to improve the positioning stability of the fixing platform 120 , the fixing platform 120 may be embedded in the supporting platform 110 , so that the fixing platform 120 can transmit more force to the supporting platform 110 .

[0037] It is worth noting that the support platform 110 can be a support surface protruding from the ground, or it can be directly on the ground, that is, the prefabricated beam 190 can be directly placed on the ground, and the bottom end of the fixing platform 120 can be embedded in the ground. In addition, the inner reinforcement wire 191 refers to the steel strand or steel bar in the prefabricated beam 190, and its specific type is not limited. Figure 1 and Figure 2 The fixed platform 120 includes a front support 121, a rear support 122 and a cross beam 123. The front support 121 and the rear support 122 are both embedded in the support platform 110. The cross beam 123 is simultaneously connected to the top ends of the front support 121 and the rear support 122. The front support 121 is closer to the prefabricated beam 190 than the rear support 122. At least a portion of the anchor seat 130 is embedded in the front support 121.

[0038] In this embodiment, the fixing platform 120 is an n-shaped structure, and both ends of the n-shaped structure are embedded in the supporting platform 110. Part of the anchor seat 130 is embedded in the front support 121, so that the connecting rod 140 can pass through the front support 121. During the tensioning operation, even if the force applied is too large, the fixing platform 120 can also transmit the force to the supporting platform 110, thereby making it less likely for the fixing platform 120 to tilt.

[0039] refer to Figure 1 and Figure 2 The front support 121 includes at least three sub-columns 1211 that are spaced apart from each other. A spacing cavity 1212 is formed between adjacent sub-columns 1211 , and at least a portion of the anchor seat 130 is accommodated in the spacing cavity 1212 .

[0040] It should be noted that by providing multiple sub-columns 1211 and spacer cavities 1212, it is convenient to arrange multiple prefabricated beams 190, so that multiple prefabricated beams 190 can be tensioned continuously, and there is also a suitable spacing between each prefabricated beam 190, so as to minimize the impact of the prefabricated beam 190 on the adjacent prefabricated beams 190 during the tensioning operation.

[0041] It is worth noting that the plurality of sub-columns 1211 may be an integrated structure, and then a partition cavity 1212 is formed; the plurality of sub-columns 1211 may also be a split structure, and then a partition cavity 1212 is formed between each split structure.

[0042] refer to Figure 1 and Figure 2In order to improve the efficiency of the tensioning operation and control the equipment cost expenditure, the tensioning platform 100 may further include a crane 160, which is slidably connected to the fixed platform 120, and the anchor seat 130 includes a movable seat 131 and at least two fixed seats 132, the movable seat 131 is connected to the crane 160 and can be selectively matched with the fixed seat 132, the jack 150 is connected to the movable seat 131, the fixed seat 132 is embedded in the fixed platform 120, and the connecting rod 140 is simultaneously penetrated and set in the movable seat 131 and the fixed seat 132. In addition, in order to improve the moving efficiency of the crane 160, the tensioning platform 100 may further include a guide rail 170, which is set on the fixed platform 120, and the extension direction of the guide rail 170 is consistent with the arrangement direction of the at least two fixed seats 132, and the crane 160 and the guide rail 170 are slidably matched.

[0043] Specifically, the guide rail 170 is disposed on the cross beam 123 , and the crane 160 is connected to the cross beam 123 via the guide rail 170 .

[0044] During the operation, by controlling the movement of the crane 160, the movable seat 131 and the jack 150 can be driven to move along the guide rail 170 (that is, the arrangement direction of the fixed seat 132), so that the movable seat 131 can cooperate with multiple fixed seats 132 in an orderly manner, thereby realizing the orderly tensioning operation of multiple prefabricated beams 190.

[0045] It is worth noting that by installing the crane 160 on the beam 123, the crane 160 can increase the pressure of the beam 123 on the front support 121 and the rear support 122 through its own weight, thereby making the overall fixed platform 120 more stable and less likely to warp and affect the tensioning operation.

[0046] Furthermore, the jack 150 can be mounted on the connecting rod 140 to directly tension or release the connecting rod 140, or it can be mounted on the connecting rod 140 without being mounted on the connecting rod 140 and tension or release the connecting rod 140 by driving the movement of the movable seat 131. The specific working mode can be selected according to actual use conditions.

[0047] refer to Figure 1 and Figure 2 The connecting rod 140 includes a rear rod 142 and at least two groups of front rods 141. Each group of front rods 141 is arranged corresponding to each fixed seat 132. The front rod 141 is arranged through the fixed seat 132 and is used to connect the inner reinforcement line 191 in the prefabricated beam 190. The rear rod 142 is arranged through the movable seat 131 and can be selectively connected to the front rod 141. The jack 150 is used to tension or release the front rod 141.

[0048] It can be understood that the number of front rods 141 matches the number of precast beams 190 to be tensioned and the number of fixed seats 132, both of which are at least two; and the number of rear rods 142 matches the number of cranes 160 and movable seats 131. Through such a setting, during operation, only the front rods 141 and the rear rods 142 need to be connected to achieve fast operation, further improving the convenience of tensioning operation.

[0049] At the same time, in order to improve the position stability of the front rod 141, a positioning hole 1321 can be formed through the fixing seat 132, and the front rod 141 can be accommodated in the positioning hole 1321 to prevent the front rod 141 from easily changing its position relative to the prefabricated beam 190 during the tensioning operation.

[0050] In this embodiment, the front rod 141 and the rear rod 142 are detachably connected, and a connecting nut can be specifically provided at the connection between the two. Of course, in other embodiments of the utility model, a sleeve can also be provided at the connection between the two, and the sleeve has an interference fit with both. A buckle can also be provided at the connection between the two so that the two are connected by buckles. There is no limitation on the specific detachable connection method between the two.

[0051] It is worth noting that by setting the connecting rod 140 as a split front rod 141 and rear rod 142 structure, the jack 150 can be separated from the fixed seat 132 and the prefabricated beam 190, that is, a set of crane 160, movable seat 131, jack 150 and rear rod 142 can perform tensioning operations on multiple prefabricated beams 190 in an orderly manner, thereby improving the operating efficiency as much as possible on the basis of controllable equipment costs; the front rod 141 can also be adaptively adjusted according to the actual situation on site without the need to synchronously adjust the rear rod 142 and all the front rods 141, thereby improving the flexibility of the tensioning operation; the setting length of a single rod can also be reduced, so that the length corresponding to the rod of the same diameter is shorter, and its mechanical requirements can be moderately reduced, saving manufacturing costs, and it is also more convenient to operate and move.

[0052] In this embodiment, there are two internal reinforcement lines 191 in a single precast beam 190, which are respectively located near the top and bottom ends of the precast beam 190, that is, the front rods 141 corresponding to the single precast beam 190 are arranged at corresponding positions.

[0053] refer to Figure 1 and Figure 2 Because the front rod 141 is prone to retract after the tensioning operation, a front limit block 143 can be provided on the front rod 141 to help offset the tension stress generated during the tensioning. The front limit block 143 is used to press against the side of the fixing seat 132 away from the precast beam 190 when the jack releases the front rod 141, thereby preventing the front rod 141 and the inner reinforcement line 191 from retracting and affecting the tensioning effect.

[0054] Furthermore, in order to improve the position stability of the rear rod 142 , a rear limit block 144 may be sleeved on the rear rod 142 , and the rear limit block 144 abuts against a side of the movable seat 131 away from the fixed seat 132 , thereby ensuring the relative position stability of the rear limit block 144 and the movable seat 131 .

[0055] The embodiment of the utility model further provides an operating method of a tensioning pedestal, which is applied to the tensioning pedestal 100. The operating method of the tensioning pedestal 100 includes:

[0056] S100: Control the jack 150 to extend, and drive the inner reinforcement wire 191 to perform tensioning operation through the connecting rod 140;

[0057] Specifically, the crane 160 can be controlled to slide along the guide rail 170 to drive the movable seat 131, the rear rod 142 and the jack 150 to move to a suitable position, and then the front rod 141 and the rear rod 142 are connected, and the jack 150 is extended to tension the front rod 141, while driving the inner reinforcement line 191 to be tensioned.

[0058] S200: Control the jack 150 to retract and release the connecting rod 140;

[0059] Specifically, after the tensioning is completed, the jack 150 is controlled to release the front rod 141 and separate the front rod 141 and the rear rod 142, and the front limit block 143 is abutted against the fixing seat 132 to prevent the front rod 141 and the inner reinforcement line 191 from retracting. Then, the crane 160 is controlled to slide to perform tensioning operation on the next set of fixing seats 132, the front rod 141 and the prefabricated beam 190.

[0060] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A tensioning pedestal, characterized in that: include: A supporting platform (110), a fixing platform (120), an anchor seat (130), a connecting rod (140) and a jack (150); The support platform (110) is used to support the precast beam (190), the fixed platform (120) is connected to the support platform (110), the anchor seat (130) is arranged on the fixed platform (120), the connecting rod (140) passes through the anchor seat (130) and is used to connect the inner reinforcement line (191) in the precast beam (190), and the jack (150) is connected to the anchor seat (130) and is used to tension or release the connecting rod (140).

2. The tensioning pedestal according to claim 1, characterized in that: The tensioning platform also includes a crane (160), and the crane (160) is slidably connected to the fixed platform (120). The anchor seat (130) includes a movable seat (131) and at least two fixed seats (132). The movable seat (131) is connected to the crane (160) and can be selectively matched with the fixed seat (132). The jack (150) is connected to the movable seat (131), and the fixed seat (132) is embedded in the fixed platform (120). The connecting rod (140) is simultaneously arranged to penetrate the movable seat (131) and the fixed seat (132).

3. The tensioning platform according to claim 2, characterized in that: The connecting rod (140) comprises a rear rod (142) and at least two groups of front rods (141), each group of the front rods (141) being arranged corresponding to each of the fixing seats (132), the front rods (141) being arranged through the fixing seats (132) and being used to connect the inner reinforcement lines (191) in the prefabricated beams (190), the rear rods (142) being arranged through the movable seats (131) and being selectively connected to the front rods (141), and the jacks (150) being used to tension or release the front rods (141).

4. The tensioning platform according to claim 3, characterized in that: The fixing seat (132) is provided with a positioning hole (1321) extending therethrough, and the front rod (141) is accommodated in the positioning hole (1321).

5. The tensioning platform according to claim 3, characterized in that: A front limit block (143) is sleeved on the front rod (141), and the front limit block (143) is used to abut against a side of the fixing seat (132) away from the prefabricated beam (190) when the jack (150) releases the front rod (141).

6. The tensioning platform according to claim 3, characterized in that: A rear limit block (144) is sleeved on the rear rod (142), and the rear limit block (144) abuts against a side of the movable seat (131) away from the fixed seat (132).

7. The tensioning platform according to claim 3, characterized in that: The front rod (141) and the rear rod (142) are connected via a connecting nut.

8. The tensioning platform according to claim 2, characterized in that: The tensioning platform further comprises a guide rail (170), wherein the guide rail (170) is arranged on the fixed platform (120), wherein the extension direction of the guide rail (170) is consistent with the arrangement direction of the at least two fixed seats (132), and the crane (160) is slidably matched with the guide rail (170).

9. The tensioning pedestal according to any one of claims 1 to 8, characterized in that: The fixed platform (120) comprises a front support (121), a rear support (122) and a crossbeam (123); the front support (121) and the rear support (122) are both embedded in the support platform (110); the crossbeam (123) is simultaneously connected to the top ends of the front support (121) and the rear support (122); the front support (121) is closer to the prefabricated beam (190) relative to the rear support (122); and at least a portion of the anchor seat (130) is embedded in the front support (121).

10. The tensioning platform according to claim 9, characterized in that: The front support (121) comprises at least three sub-columns (1211) arranged at intervals, a spacing cavity (1212) is formed between adjacent sub-columns (1211), and at least a portion of the anchor seat (130) is accommodated in the spacing cavity (1212).

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