Device for installing prestress tensioning jack

Abstract

The utility model discloses a device for installing a prestress tensioning jack, and relates to the technical field of installation construction. The device comprises a supporting assembly. The sliding assembly is arranged on one side of the supporting assembly; and the lifting assembly is horizontally and movably arranged on the sliding assembly, and the lifting assembly comprises a lifting part which is used for lifting and lowering the jack. The supporting assembly is installed on the inner side of the cover beam, the sliding assembly is installed on one side of the supporting assembly and located on the outer side of the cover beam, and the lifting assembly is movably arranged on the sliding assembly; the lifting assembly can move on the sliding assembly in the horizontal direction, so that the jack lifted on the lifting assembly moves in the horizontal direction, then the jack moves in the vertical direction through the lifting and lowering functions of the lifting assembly, and therefore the jack can be mechanically controlled to move till the designed position is reached; therefore, the device for installing the prestress tensioning jack can improve the installation precision of the jack.

Description

Technical Field

[0001] The utility model relates to the technical field of installation and construction, in particular to a device for installing a prestressed tensioning jack. Background Art

[0002] At present, during the construction of bridges, prestressing is an important process in the construction of cap beams, which will directly affect the safety and construction period of the bridge structure. Generally, workers will set up simple scaffolding before prestressing, and then install the jack with a hand winch.

[0003] At present, there are the following defects in the installation and construction of jacks:

[0004] 1. The support is too simple, which poses a safety hazard and is affected by the height and environment: the support height must meet the specifications. When the support height is too high, the stability of the support drops sharply, and the safety risk is huge; when the construction environment is bad and does not meet the requirements, such as rivers, lakes and roads below, the support erection requirements are not met or the support has safety hazards, causing the risk of falling from height to the operators;

[0005] 2. There is a risk of steel chain breakage in hand chain hoists;

[0006] 3. The installation accuracy of the jack is manually adjusted by the construction workers, but due to the large gravity of the jack, it is not convenient to move and adjust it in the horizontal direction, so it is difficult to adjust the accuracy. Utility Model Content

[0007] In view of the defects existing in the prior art, the technical problem solved by the utility model is: how to improve the installation accuracy of the jack.

[0008] In order to achieve the above purpose, the utility model provides a device for installing a prestressed tensioning jack, comprising:

[0009] Support components;

[0010] A sliding assembly, which is arranged on one side of the supporting assembly;

[0011] The lifting assembly is horizontally movably arranged on the sliding assembly, and the lifting assembly comprises a lifting part, which is used for raising and lowering the jack.

[0012] In one embodiment, the sliding assembly includes a sliding rail, a sliding rod and a first driving assembly. The sliding rail is arranged on the supporting assembly. The sliding rod can be horizontally movably arranged on the sliding rail. The first driving assembly is connected to the sliding rod. The first driving assembly is used to control the movement of the sliding rod along the track of the sliding rail and is arranged on the sliding rod along the lifting assembly.

[0013] In one embodiment, slide rails are provided at both ends of the sliding rod, and the two slide rails are fixedly connected by at least one supporting rod.

[0014] In one embodiment, a first stopper is provided at one end of the slide rail;

[0015] Alternatively, first limiting members are provided at both ends of the slide rail.

[0016] In one embodiment, a first roller is provided between the slide rail and the slide rod, and the first driving assembly is used to control the first roller to move along the track of the slide rail.

[0017] In one embodiment, a second limit member is provided on the sliding rod, and the lifting assembly is located between the second limit member and the sliding rail.

[0018] In one embodiment, the lifting assembly also includes a second roller, a hook and a second drive assembly. The second roller can be horizontally movably arranged on the sliding assembly. The second drive assembly is connected to the second roller. The second drive assembly is used to control the second roller to move along the trajectory of the sliding assembly. The hook is arranged at the bottom of the second roller through the lifting part.

[0019] In one embodiment, the draw hook is a fall chain.

[0020] In one embodiment, the support assembly includes several groups of counterweight assemblies and pad assemblies, and the pad assemblies are arranged at the bottom of the counterweight assembly.

[0021] In one embodiment, the counterweight assembly includes a plurality of stacked counterweight blocks.

[0022] Compared with the prior art, the advantages of the utility model are:

[0023] The utility model installs the support assembly on the inner side of the cap beam, the sliding assembly is installed on one side of the support assembly and is located on the outer side of the cap beam, and a lifting assembly is movably provided on the sliding assembly. Compared with the existing jack installation method, the device for installing the prestressed tension jack can move the jack suspended on the lifting assembly in the horizontal direction through the lifting assembly on the sliding assembly, and then move the jack in the vertical direction through the lifting and lowering function of the lifting assembly, so that the movement of the jack can be mechanically controlled until it reaches the designed position, so the device for installing the prestressed tension jack can improve the accuracy of jack installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of a device for installing a prestressed tensioning jack according to an embodiment of the utility model;

[0025] Figure 2 This is a top view of a device for installing a prestressed tensioning jack according to an embodiment of the utility model.

[0026] In the figure: 1-support assembly, 101-mat assembly, 102-counterweight assembly, 1021-counterweight block, 2-lifting assembly, 201-second roller, 202-lifting part, 203-hook, 3-sliding assembly, 31-slide rail, 311-first limiter, 32-sliding rod, 321-first roller, 322-second limiter, 33-support rod. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0028] The device for installing the prestressed tensioning jack in the embodiment of the utility model is shown in FIG. Figure 1 As shown, it includes a support assembly 1, a sliding assembly 3 is arranged on one side of the support assembly 1, a lifting assembly 2 is arranged on the sliding assembly 3 so as to be horizontally movably, and the lifting assembly 2 includes a lifting part 202, which is used for raising and lowering the jack.

[0029] It can be seen that the utility model installs the support assembly 1 on the inner side of the cap beam, the sliding assembly 3 is installed on one side of the support assembly 1 and is located on the outer side of the cap beam, and the lifting assembly 2 is movably provided on the sliding assembly 3. Compared with the existing jack installation method, the device for installing the prestressed tension jack can move the lifting assembly 2 on the sliding assembly 3 in the horizontal direction, so that the jack suspended on the lifting assembly 2 moves in the horizontal direction, and then through the lifting and lowering function of the lifting assembly 2, the jack moves in the vertical direction, so that the movement of the jack can be mechanically controlled until it reaches the designed position, so the device for installing the prestressed tension jack can improve the accuracy of jack installation.

[0030] Preferably, see Figure 2 As shown, a specific structure of a sliding component 3 is provided:

[0031] The sliding assembly 3 includes a sliding rail 31, a sliding rod 32 and a first driving assembly. The sliding rail 31 is arranged on the supporting assembly 1. The sliding rod 32 can be horizontally movably arranged on the sliding rail 31. The first driving assembly is connected to the sliding rod 32. The first driving assembly is used to control the sliding rod 32 to move along the trajectory of the sliding rail 31 and is arranged on the sliding rod 32 along the lifting assembly 2.

[0032] For further information, see Figure 2 As shown, slide rails 31 are provided at both ends of the slide rod 32 , and the two slide rails 31 are fixedly connected by at least one support rod 33 .

[0033] It should be noted that the sliding rod 32 can move on one sliding rail 31 or on two sliding rails 31. The two sliding rails 31 are arranged at both ends of the sliding rod 32 and fixedly connected by at least one supporting rod 33, which can improve the overall stability of the device.

[0034] Preferably, see Figure 2 As shown, a first stopper 311 is provided at one end of the slide rail 31;

[0035] Alternatively, first limiting members 311 are disposed at both ends of the slide rail 31 .

[0036] It should be noted that in order to prevent the sliding rod 32 from being separated from the sliding rail 31 , which would cause the work to be unable to proceed or even cause a serious construction accident, a first limiting member 311 is installed on the sliding rail 31 .

[0037] Preferably, see Figure 2 As shown, a first roller 321 is provided between the slide rail 31 and the slide rod 32 , and the first driving assembly is used to control the first roller 321 to move along the track of the slide rail 31 .

[0038] Preferably, see Figure 2 As shown, a second position-limiting member 322 is disposed on the movable rod 32 , and the lifting assembly 2 is located between the second position-limiting member 322 and the slide rail 31 .

[0039] It should be noted that in order to prevent the lifting assembly 2 from being separated from the sliding rod 32 , which would cause the work to be unable to proceed or even cause a serious construction accident, a second limit member 322 is installed on the sliding rod 32 .

[0040] Preferably, see Figure 1 , 2 As shown, the lifting assembly 2 also includes a second roller 201, a hook 203 and a second driving assembly. The second roller 201 can be horizontally movably arranged on the sliding assembly 3. The second driving assembly is connected to the second roller 201. The second driving assembly is used to control the second roller 201 to move along the trajectory of the sliding assembly 3. The hook 203 is arranged at the bottom of the second roller 201 through the lifting part 202.

[0041] Furthermore, the pull hook 203 is a fall chain.

[0042] Preferably, see Figure 1 , 2 As shown, the support assembly 1 includes a plurality of groups of counterweight assemblies 102 and a cushion assembly 101 , and the cushion assembly 101 is arranged at the bottom of the counterweight assembly 102 .

[0043] It should be noted that, since the support assembly 1 of the device is arranged on the inner side of the cap beam, and the sliding assembly 3 and the lifting assembly 2 are arranged on the outer side of the cap beam, in order to support the weight of the sliding assembly 3, the lifting assembly 2 and the jack, several groups of counterweight assemblies 102 and pad assemblies 101 are provided.

[0044] For further information, see Figure 1 As shown, the counterweight assembly 102 includes a plurality of stacked counterweight blocks 1021 .

[0045] It should be noted that the counterweight assembly 102 can be counterweighted according to actual construction requirements to meet the construction requirements of jacks of different weights.

[0046] Example 1

[0047] The device for installing the prestressed tensioning jack in the embodiment of the utility model includes a support component 1, a sliding component 3 is arranged on one side of the support component 1, a lifting component 2 is horizontally movably arranged on the sliding component 3, and the lifting component 2 includes a lifting part 202, which is used for raising and lowering the jack.

[0048] The sliding assembly 3 includes a sliding rail 31, a sliding rod 32 and a first driving assembly. The sliding rail 31 is arranged on the supporting assembly 1. The sliding rod 32 can be horizontally movably arranged on the sliding rail 31. The first driving assembly is connected to the sliding rod 32. The first driving assembly is used to control the sliding rod 32 to move along the trajectory of the sliding rail 31 and is arranged on the sliding rod 32 along the lifting assembly 2.

[0049] Slide rails 31 are disposed at both ends of the slide rod 32 , and the two slide rails 31 are fixedly connected via a support rod 33 .

[0050] A first limiting member 311 is disposed at one end of the slide rail 31 .

[0051] A first roller 321 is disposed between the slide rail 31 and the slide rod 32 .

[0052] A second position-limiting member 322 is disposed on the movable rod 32 , and the lifting assembly 2 is located between the second position-limiting member 322 and the slide rail 31 .

[0053] The lifting assembly 2 also includes a second roller 201, a hook 203 and a second driving assembly. The second roller 201 can be horizontally movably arranged on the sliding assembly 3. The second driving assembly is connected to the second roller 201. The second driving assembly is used to control the second roller 201 to move along the trajectory of the sliding assembly 3. The hook 203 is arranged at the bottom of the second roller 201 through the lifting part 202.

[0054] The supporting assembly 1 includes a plurality of counterweight assemblies 102 and a cushion assembly 101 . The cushion assembly 101 is arranged at the bottom of the counterweight assembly 102 . The counterweight assembly 102 includes a plurality of stacked counterweight blocks 1021 .

[0055] Example 2

[0056] The device for installing the prestressed tensioning jack in the embodiment of the utility model includes a support component 1, a sliding component 3 is arranged on one side of the support component 1, a lifting component 2 is horizontally movably arranged on the sliding component 3, and the lifting component 2 includes a lifting part 202, which is used for raising and lowering the jack.

[0057] The sliding assembly 3 includes a sliding rail 31, a sliding rod 32 and a first driving assembly. The sliding rail 31 is arranged on the supporting assembly 1. The sliding rod 32 can be horizontally movably arranged on the sliding rail 31. The first driving assembly is connected to the sliding rod 32. The first driving assembly is used to control the sliding rod 32 to move along the trajectory of the sliding rail 31 and is arranged on the sliding rod 32 along the lifting assembly 2.

[0058] Slide rails 31 are disposed at both ends of the slide rod 32 , and the two slide rails 31 are fixedly connected via two support rods 33 .

[0059] A first limiting member 311 is disposed at one end of the slide rail 31 .

[0060] A first roller 321 is disposed between the slide rail 31 and the slide rod 32 .

[0061] A second position-limiting member 322 is disposed on the movable rod 32 , and the lifting assembly 2 is located between the second position-limiting member 322 and the slide rail 31 .

[0062] The lifting assembly 2 also includes a second roller 201, a hook 203 and a second drive assembly. The second roller 201 can be horizontally movably arranged on the sliding assembly 3. The second drive assembly is connected to the second roller 201. The second drive assembly is used to control the second roller 201 to move along the trajectory of the sliding assembly 3. The hook 203 is arranged at the bottom of the second roller 201 through the lifting part 202, and the hook 203 is a fall chain.

[0063] The supporting assembly 1 includes a plurality of counterweight assemblies 102 and a cushion assembly 101 . The cushion assembly 101 is arranged at the bottom of the counterweight assembly 102 . The counterweight assembly 102 includes a plurality of stacked counterweight blocks 1021 .

[0064] Example 3

[0065] The device for installing the prestressed tensioning jack in the embodiment of the utility model includes a support component 1, a sliding component 3 is arranged on one side of the support component 1, a lifting component 2 is horizontally movably arranged on the sliding component 3, and the lifting component 2 includes a lifting part 202, which is used for raising and lowering the jack.

[0066] The sliding assembly 3 includes a sliding rail 31, a sliding rod 32 and a first driving assembly. The sliding rail 31 is arranged on the supporting assembly 1. The sliding rod 32 can be horizontally movably arranged on the sliding rail 31. The first driving assembly is connected to the sliding rod 32. The first driving assembly is used to control the sliding rod 32 to move along the trajectory of the sliding rail 31 and is arranged on the sliding rod 32 along the lifting assembly 2.

[0067] Slide rails 31 are disposed at both ends of the slide rod 32 , and the two slide rails 31 are fixedly connected via two support rods 33 .

[0068] First limiting members 311 are disposed at both ends of the slide rail 31 .

[0069] A first roller 321 is disposed between the slide rail 31 and the slide rod 32 .

[0070] A second position-limiting member 322 is disposed on the movable rod 32 , and the lifting assembly 2 is located between the second position-limiting member 322 and the slide rail 31 .

[0071] The lifting assembly 2 also includes a second roller 201, a hook 203 and a second drive assembly. The second roller 201 can be horizontally movably arranged on the sliding assembly 3. The second drive assembly is connected to the second roller 201. The second drive assembly is used to control the second roller 201 to move along the trajectory of the sliding assembly 3. The hook 203 is arranged at the bottom of the second roller 201 through the lifting part 202, and the hook 203 is a fall chain.

[0072] The supporting assembly 1 includes a plurality of counterweight assemblies 102 and a cushion assembly 101 . The cushion assembly 101 is arranged at the bottom of the counterweight assembly 102 . The counterweight assembly 102 includes a plurality of stacked counterweight blocks 1021 .

[0073] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0074] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0075] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A device for installing a prestressed tensioning jack, characterized in that: It includes: Support assembly (1); A sliding assembly (3) disposed on one side of the supporting assembly (1); The lifting assembly (2) is horizontally movably arranged on the sliding assembly (3), and the lifting assembly (2) comprises a lifting part (202) which is used for raising and lowering the jack.

2. The device for installing the prestressed tensioning jack according to claim 1, characterized in that: The sliding assembly (3) comprises a sliding rail (31), a sliding rod (32) and a first driving assembly, wherein the sliding rail (31) is arranged on the supporting assembly (1), the sliding rod (32) is arranged on the sliding rail (31) so as to be horizontally movable, and the first driving assembly is connected to the sliding rod (32), and the first driving assembly is used for controlling the sliding rod (32) to move along the track of the sliding rail (31), and is arranged on the sliding rod (32) along the lifting assembly (2).

3. The device for installing the prestressed tensioning jack according to claim 2, characterized in that: Both ends of the sliding rod (32) are provided with sliding rails (31), and the two sliding rails (31) are fixedly connected via at least one supporting rod (33).

4. The device for installing the prestressed tensioning jack according to claim 2, characterized in that: A first limiting member (311) is provided at one end of the slide rail (31); Alternatively, both ends of the slide rail (31) are provided with a first limiting member (311).

5. The device for installing the prestressed tensioning jack according to claim 2, characterized in that: A first roller (321) is arranged between the slide rail (31) and the slide rod (32), and the first driving assembly is used to control the first roller (321) to move along the track of the slide rail (31).

6. The device for installing the prestressed tensioning jack according to claim 2, characterized in that: The sliding rod (32) is provided with a second position-limiting member (322), and the lifting assembly (2) is located between the second position-limiting member (322) and the sliding rail (31).

7. The device for installing the prestressed tensioning jack according to claim 1, characterized in that: The lifting assembly (2) further comprises a second roller (201), a hook (203) and a second driving assembly. The second roller (201) is horizontally movably arranged on the sliding assembly (3). The second driving assembly is connected to the second roller (201). The second driving assembly is used to control the second roller (201) to move along the track of the sliding assembly (3). The hook (203) is arranged at the bottom of the second roller (201) through the lifting part (202).

8. The device for installing the prestressed tensioning jack according to claim 7, characterized in that: The draw hook (203) is a fall chain.

9. The device for installing a prestressed tensioning jack according to claim 1, characterized in that: The support assembly (1) comprises a plurality of groups of counterweight assemblies (102) and a cushion assembly (101), wherein the cushion assembly (101) is arranged at the bottom of the counterweight assembly (102).

10. The device for installing the prestressed tensioning jack according to claim 9, characterized in that: The counterweight assembly (102) comprises a plurality of stacked counterweight blocks (1021).

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