Jack control system in tensioning

Abstract

The utility model discloses a jack control system in tensioning. The jack control system in tensioning comprises a concrete surface, a position adjusting part is fixedly connected to the concrete surface, a horizontal supporting frame is movably connected to the concrete surface, a jack is hung on the lower side of the position adjusting part, one end of the jack abuts against the concrete surface, and the horizontal supporting frame is located below the jack. The technical problem that the jack is not perpendicular to the tool anchor before tensioning due to the fact that the jack cannot make effective contact with the concrete surface is solved.

Description

Technical Field

[0001] The present application relates to the field of prefabricated box girder tensioning construction, and in particular, to a jack control system during tensioning. Background Art

[0002] During the tensioning process, the position of the jack is controlled by a pull chain. The tensioning end of the prefabricated box girder is a rough inclined surface. During the process of manually pulling to control the position of the jack, the position of the jack will be offset and cannot effectively contact the concrete surface. Therefore, before the tensioning begins, the jack is not perpendicular to the tool anchor in most cases.

[0003] With regard to the problem in the related art that the jack cannot effectively contact the concrete surface, resulting in the jack and the tool anchor not being perpendicular before the tensioning begins, no effective solution has been proposed yet. Summary of the invention

[0004] The main purpose of the present application is to provide a jack control system during tensioning to solve the problem that the jack cannot effectively contact the concrete surface and the jack and the tool anchor are not vertical before starting tensioning.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a tensioning jack control system is provided.

[0006] The tensioning jack control system according to the present application includes: a concrete surface, to which a position adjustment member is fixedly connected, and to which a horizontal support frame is movably connected, a jack is suspended on the lower side of the position adjustment member, one end of the jack is against the concrete surface, and the horizontal support frame is located below the jack.

[0007] Furthermore, the position adjustment member includes: a hanging rod, and a pair of hand chain hoists hung on the hanging rod, and the pair of hand chain hoists hang the jack through a hanging ring.

[0008] Furthermore, the horizontal support frame is a right-angle steel frame.

[0009] Furthermore, the position adjusting member is connected to the concrete surface via a threaded fastener.

[0010] Furthermore, the horizontal support frame is detachably connected to the concrete surface via a clamp.

[0011] Furthermore, the right-angle steel frame is composed of a support plate for contacting the jack, a curved plate for fitting on the concrete surface, and a diagonal support plate diagonally supported between the support plate and the concrete surface. The curved plate is located at one end of the support plate and is perpendicular to the support plate.

[0012] Furthermore, the support plate and the arc-shaped plate are integrally formed.

[0013] Furthermore, the arc-shaped plate and the clamp are integrally formed.

[0014] Furthermore, the arc-shaped plate is clamped in the arc-shaped block on the clamp.

[0015] In the embodiment of the present application, a jack control method is adopted during tensioning, through a concrete surface, a position adjustment member is fixedly connected to the concrete surface, and a horizontal support frame is movably connected, a jack is suspended on the lower side of the position adjustment member, one end of the jack is against the concrete surface, and the horizontal support frame is located below the jack; the purpose of the jack being able to effectively contact the concrete surface is achieved, thereby achieving the technical effect of ensuring that the jack and the tool anchor are perpendicular before the tensioning starts, thereby solving the technical problem that the jack and the tool anchor are not perpendicular before the tensioning starts due to the jack not being able to effectively contact the concrete surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0017] Figure 1 is a structural schematic diagram of a jack control system in tensioning according to an embodiment of the present application;

[0018] Figure 2 is a partial schematic diagram of a jack control system in tensioning according to an embodiment of the present application;

[0019] Figure 3 It is a schematic diagram of the structure of a clamp according to an embodiment of the present application.

[0020] Reference numerals

[0021] 1. Concrete surface; 2. Position adjustment parts; 3. Horizontal support frame; 4. Jack; 5. Threaded fasteners; 6. Hoops; 7. Support plates; 8. Arc plates; 9. Diagonal support plates; 10. Hanging rods; 11. Hand hoists; 12. Lifting rings. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; 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 an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] like Figure 1-3As shown, the present application relates to a control system for a jack 4 during tensioning, and the control system for the jack 4 during tensioning includes: a concrete surface 1, which is a working surface for tensioning a prefabricated box girder. A position adjusting member 2 is fixedly connected to the concrete surface 1, and a horizontal support frame 3 is movably connected thereto, a jack 4 is suspended from the lower side of the position adjusting member 2, one end of the jack 4 is against the concrete surface 1, and the horizontal support frame 3 is located below the jack 4. The jack 4 has the function of cooperating with other tensioning components to tension the prefabricated box girder; in this embodiment, one end of the jack 4 is against the concrete surface 1 to ensure the normal tensioning. The position adjusting member 2 has the function of adjusting the position of the jack 4; in this embodiment, the position adjusting member 2 suspends the jack 4, and the jack 4 can be moved to the corresponding tensioning position through operation. The horizontal support frame 3 has the function of measuring whether the jack 4 is vertical. In this embodiment, the horizontal support frame 3 drags the bottom of the jack 4 by moving up and down on the concrete surface 1. Since the horizontal support frame 3 remains parallel to the horizontal plane, that is, perpendicular to the concrete surface 1, when it is supported on the bottom of the jack 4 and tilts, it indicates that the jack 4 is also tilted. The position of the jack 4 can be fine-tuned by the position adjustment member 2 until the horizontal support frame 3 is perpendicular to the concrete surface 1. At this time, the jack 4 is also perpendicular to the concrete surface 1. Thereby, the jack 4 can be effectively contacted with the concrete surface 1, thereby achieving verticality between the jack 4 and the tool anchor before starting tensioning.

[0029] From the above description, it can be seen that the present application achieves the following technical effects:

[0030] In the embodiment of the present application, a jack 4 is controlled during tensioning, through a concrete surface 1, a position adjusting member 2 is fixedly connected to the concrete surface 1, and a horizontal support frame 3 is movably connected, a jack 4 is suspended on the lower side of the position adjusting member 2, one end of the jack 4 is against the concrete surface 1, and the horizontal support frame 3 is located below the jack 4; the purpose of the jack 4 being able to effectively contact the concrete surface 1 is achieved, thereby achieving the technical effect of ensuring that the jack 4 is perpendicular to the tool anchor before the tensioning starts, and further solving the technical problem that the jack 4 is not perpendicular to the tool anchor before the tensioning starts due to the inability of the jack 4 to effectively contact the concrete surface 1.

[0031] Preferably, the position adjustment member 2 includes: a hanging rod 10, and a pair of hand winches 11 hung on the hanging rod 10, and the pair of hand winches 11 hang the jack 4 through a lifting ring 12; hanging the jack 4 through a pair of hand winches 11 can ensure that the jack 4 moves more smoothly, and is fixed to the concrete surface 1 through the hanging rod 10, and then the pair of hand winches 11 are hung on the hanging rod 10, and the lower side of the hand winches 11 is hung in the lifting ring 12, so that the connection is realized, and the setting of the lifting ring 12 can realize simple and convenient connection.

[0032] Preferably, the horizontal support frame 3 is a right-angle steel frame; preferably, the right-angle steel frame is composed of a support plate 7 for contacting the jack 4, an arc plate 8 for fitting on the concrete surface 1, and a diagonal support plate 9 diagonally supported between the support plate 7 and the concrete surface 1, and the arc plate 8 is located at one end of the support plate 7 and is perpendicular to the support plate 7; by using a right-angle steel frame in which the support plate 7 and the arc plate 8 are perpendicular to each other, it is possible to judge whether the support plate 7 is perpendicular to the concrete surface 1 by whether the arc plate 8 fits on the concrete surface 1, and then to judge whether the jack 4 is in effective contact with the concrete surface 1; the diagonal support plate 9 can also provide a certain supporting force when the horizontal support frame 3 drags the jack 4.

[0033] Preferably, the position adjusting member 2 is connected to the concrete surface 1 via a threaded fastener 5; the threaded fastener 5 is used to fix the hanging rod 10 of the position adjusting member 2 to the concrete surface 1, which is firmly fixed and not easy to loosen.

[0034] Preferably, the horizontal support frame 3 is detachably connected to the concrete surface 1 via a clamp 6; the horizontal support frame 3 is detachably fixed to the concrete surface 1 using the clamp 6. When measurement is required, the clamp 6 is opened, moved to the corresponding position, and then the clamp 6 is fixed, and the bottom of the jack 4 is dragged.

[0035] Preferably, the support plate 7 and the arc plate 8 are integrally formed; the structure in which the support plate 7 and the arc plate 8 are integrally formed can facilitate mass production; the support plate 7 and the arc plate 8 can also be welded.

[0036] Preferably, the arc plate 8 and the clamp 6 are integrally formed; the structure in which the support plate 7 and the arc plate 8 are integrally formed can facilitate mass production; in addition, the support plate 7 and the arc plate 8 can also be integrally formed. The structure in which the arc plate 8 and the clamp 6 are integrally formed can ensure that the arc plate 8 is always perpendicular to the support plate 7, thereby improving the measurement accuracy.

[0037] Optionally, the arc plate 8 is clamped in the arc block on the clamp 6; the arc plate 8 is clamped by slotting the arc block to ensure normal measurement.

[0038] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A control system for a tensioning jack (4), It is characterized in that The invention comprises: a concrete surface (1), to which a position adjusting member (2) is fixedly connected, and to which a horizontal support frame (3) is movably connected, a jack (4) is suspended on the lower side of the position adjusting member (2), one end of the jack (4) is against the concrete surface (1), and the horizontal support frame (3) is located below the jack (4).

2. The tensioning jack (4) control system according to claim 1, It is characterized in that The position adjustment member (2) comprises: a hanging rod (10), and a pair of hand chain hoists (11) hung on the hanging rod (10), wherein the pair of hand chain hoists (11) hang the jack (4) via a hanging ring (12).

3. The tensioning jack (4) control system according to claim 1, It is characterized in that The horizontal support frame (3) is a right-angle steel frame.

4. The tensioning jack (4) control system according to claim 1 or 2, It is characterized in that The position adjustment member (2) is connected to the concrete surface (1) via a threaded fastener (5).

5. The tensioning jack (4) control system according to claim 3, It is characterized in that The horizontal support frame (3) is detachably connected to the concrete surface (1) via a hoop (6).

6. The tensioning jack (4) control system according to claim 5, It is characterized in that The right-angle steel frame is composed of a support plate (7) for contacting the jack (4), an arc-shaped plate (8) for fitting on the concrete surface (1), and an inclined support plate (9) diagonally supported between the support plate (7) and the concrete surface (1), wherein the arc-shaped plate (8) is located at one end of the support plate (7) and is perpendicular to the support plate (7).

7. The tensioning jack (4) control system according to claim 6, It is characterized in that The support plate (7) and the arc-shaped plate (8) are integrally formed.

8. The tensioning jack (4) control system according to claim 6, It is characterized in that The arc-shaped plate (8) and the clamp (6) are integrally formed.

9. The tensioning jack (4) control system according to claim 6, It is characterized in that The arc-shaped plate (8) is clamped in the arc-shaped block on the clamp (6).

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