Jack mounting bracket

Abstract

The utility model discloses a jack mounting bracket, which particularly relates to the technical field of bridge construction, and comprises a slideway assembly which is arranged in a box girder and is used for supporting a jacking jack and a tensioning jack, the slide way assembly comprises a slide way frame arranged in the box girder, and two sets of slide rail pieces are installed on the front side of the slide way frame. Each sliding rail piece comprises two sliding way supporting rods, a plurality of arc-shaped supporting rods distributed at intervals are installed between the two sliding way supporting rods, and a plurality of first wedge-shaped limiting stoppers distributed at intervals are installed at the bottoms of the sliding way supporting rods. According to the box girder tensioning device, the slideway assembly and the supporting piece are conveyed into the box girder to be spliced, the jacking jack is conveyed to the sliding rail piece of the device after splicing is completed, tensioning can be started after the jacking jack is installed for jacking and the tensioning jack is jacked in place, the structure is simple, installation is convenient, and the cost is low. The construction efficiency can be effectively improved; and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically to a jack installation bracket. Background Technology

[0002] In bridge engineering, cast-in-place prestressed box girders typically employ post-tensioning to tension the prestressing tendons. This involves inserting the prestressing tendons through pre-drilled ducts and tensioning them after the concrete of the member has reached the specified strength. However, for cast-in-place prestressed box girders with low clearance, the installation and movement of tensioning jacks become particularly difficult due to factors such as the uneven surface of the box girder's bottom slab, resulting in low construction efficiency and high labor intensity for workers.

[0003] The installation of tensioning jacks is a crucial step in bridge construction, especially in the construction of low-clearance, high-height cast-in-place prestressed box girders. Currently, the prestressing tensioning of the upper toothed blocks inside the box girder is quite difficult. Due to the confined space inside the box girder and the limited working area for workers, trolleys are currently used to transport jacks within the inner box girder. The jacks are positioned by lifting the top plate of the trolley. However, because the inner box girder has chamfers, installing the edge toothed blocks using a trolley is difficult, resulting in low construction efficiency and a high labor requirement. Utility Model Content

[0004] To overcome the aforementioned deficiencies in the prior art, this utility model provides a jack installation bracket. By transporting the slide rail assembly and support components to the inside of the box girder for assembly, and then transporting the lifting jack to the slide rail component of the device after assembly, the tensioning jack can be lifted into place by installing the lifting jack, and tensioning can then begin. The structure is simple and easy to install, which can effectively improve construction efficiency and reduce labor costs, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a jack mounting bracket, including a slide rail assembly installed inside the box girder for supporting the lifting jack and the tensioning jack;

[0006] The slide rail assembly includes a slide rail frame disposed inside the box girder, and two sets of slide rail components are installed on the front side of the slide rail frame;

[0007] Each set of slide rail components includes two slide rail support rods, with multiple spaced arc-shaped support rods installed between the two slide rail support rods, and multiple spaced first wedge-shaped limiters installed at the bottom of the slide rail support rods;

[0008] The same action plate is installed at the top of the rear end of both slide support rods.

[0009] In a preferred embodiment, the plurality of arc-shaped support rods on the slide rail member are fixed to the reinforcing rod, and the rear end of the reinforcing rod is fixed to the front side of the slide frame.

[0010] In a preferred embodiment, a bottom frame is sleeved to the rear end of the slide frame, and a support member is mounted to the front side of the bottom frame.

[0011] The support member comprises four frame connecting rods and four support rods which are connected in an interlaced manner, the four frame connecting rods correspond to the positions of the four slide support rods in an up-down manner, and a second wedge-shaped position limiter is mounted to the joint of the frame connecting rod and the support rod.

[0012] In a preferred embodiment, a middle support rod is mounted to the top end of the second wedge-shaped position limiter, and the top end of the middle support rod is fixedly connected to the bottom of the first wedge-shaped position limiter.

[0013] In a preferred embodiment, a lower support rod is mounted to the bottom end of the second wedge-shaped position limiter and the bottom of the bottom frame, and a horizontal position limiter is mounted to the bottom of the lower support rod.

[0014] In a preferred embodiment, a limiting member for limiting the tensioning jack is arranged on the top of each set of slide rail members.

[0015] The limiting member comprises an adjusting plate arranged between the two slide support rods, two clamping rings which are arranged at the bottom of the front and rear ends of the adjusting plate and are used for sleeving and clamping the arc-shaped support rod, and a touch plate mounted to the top of the adjusting plate.

[0016] Technical effects and advantages of the present application:

[0017] 1. The slide assembly and the support member are transported into the box girder for assembly, the jacking jack is transported to the slide rail member of the device after the assembly is completed, the jacking jack is installed and lifted, and the tensioning jack is lifted into position, and then the tensioning can be started, which is simple in structure and convenient to install, can effectively improve the construction efficiency and reduce the labor cost.

[0018] 2. The clamping of the clamping ring on the adjusting plate and the arc-shaped support rod can fix the adjusting plate to the tensioning jack, and the touch plate on the adjusting plate supports and limits the tensioning jack, so as to ensure the stability of the tensioning jack, which facilitates the subsequent prying treatment of the tensioning jack and improves the operation stability and convenience of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2The utility model discloses an arc support rod plan view for the utility model

[0021] Figure 3 The utility model discloses a Figure 2 The middle A part enlarged view

[0022] Figure 4 The utility model discloses a Figure 2 The middle B part enlarged view

[0023] Figure 5 The utility model discloses a regulating plate bottom view.

[0024] The figure mark is: 1, box beam, 2, jacking jack, 3, tensioning jack, 4, slide frame, 5, slide support pole, 6, arc support pole, 7, first wedge limit stopper, 8, action plate, 9, reinforcing rod, 10, bottom frame, 11, frame connecting rod, 12, support pole, 13, second wedge limit stopper, 14, middle support pole, 15, lower support pole, 16, horizontal limit stopper, 17, regulating plate, 18, snap ring, 19, touch plate. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work fall within the protection scope of the utility model.

[0026] Referring to the drawings in the description Figures 1-5 The utility model provides a kind of jack mounting bracket, including the slide assembly for supporting jacking jack 2 and tensioning jack 3 in the inside of box beam 1;

[0027] As Figures 1-3 Indicated, the slide assembly includes the slide frame 4 being located in the inside of box beam 1, two groups of slide rail pieces are installed in the front side of the slide frame 4;Each group of slide rail pieces includes two slide support poles 5, multiple arc support poles 6 distributed at intervals are installed between two slide support poles 5, and multiple first wedge limit stoppers 7 distributed at intervals are installed in the bottom of slide support pole 5;The same action plate 8 is installed in the top of the rear end of two slide support poles 5.

[0028] In use, the staff will be installed to the box girder 1 inside gradually, ensure the stability of the overall structure, and then place the jacking jack 2 on the action plate 8, and then slide the tensioning jack 3 on the rail piece, support the tensioning jack 3 through the arc-shaped support rod 6, move the tensioning jack 3 in place through the jacking jack 2, so as to facilitate the tensioning treatment, and after moving in place, the staff is connected with the arc-shaped support rod 6 through the clasp ring 18 on the adjusting plate 17, so as to fix the adjusting plate 17, and then the staff can operate the steel pick to another set of slide rail piece, improve the operation stability and convenience of the staff.

[0029] In order to ensure the stability of the two sets of slide rail pieces on the slide frame 4, as shown in Figure 2 One side of one of the slide rail pieces is provided with a reinforcing rod 9, and the reinforcing rod 9 is fixed with the arc-shaped support rods 6 on the slide rail piece, and the rear end of the reinforcing rod 9 is fixed with the front side of the slide frame 4, so as to fix the arc-shaped support rods 6 on one of the slide rail pieces through the reinforcing rod 9, so as to ensure the stability of the slide rail piece.

[0030] In order to facilitate the support and fixation of the slide rail piece, as shown in Figure 2 And 4 The rear end of the slide frame 4 is provided with a bottom frame 10, and the front side of the bottom frame 10 is provided with a support piece; the support piece comprises four frame connecting rods 11 and four support rods 12 which are connected in an alternating manner, the positions of the four frame connecting rods 11 correspond to the positions of the four slide support rods 5, and the intersection of the frame connecting rod 11 and the support rod 12 is provided with a second wedge-shaped limiting piece 13, the four frame connecting rods 11 and the four support rods 12 are connected and fixed through the second wedge-shaped limiting piece 13, so as to ensure the stability of the support piece, the top end of the second wedge-shaped limiting piece 13 is provided with a middle support rod 14, and the top end of the middle support rod 14 is fixedly connected with the bottom of the first wedge-shaped limiting piece 7, so that the middle support rod 14 connected with the support piece can support and fix the slide rail piece, so as to ensure the stability of the slide rail piece, and the bottom end of the second wedge-shaped limiting piece 13 and the bottom of the bottom frame 10 are provided with a lower support rod 15, and the bottom of the lower support rod 15 is provided with a horizontal limiting piece 16, so that the lower support rod 15 can support and fix the bottom frame 10, and ensure the stability of the support piece.

[0031] In order to facilitate the fixation of the tensioning jack 3 after displacement adjustment, as shown in Figure 5As shown, each group of slide rail pieces is provided with a limiting piece for limiting the tensioning jack 3; the limiting piece comprises an adjusting plate 17 arranged between the two slide track supporting rods 5, the two ends of the adjusting plate 17 are provided with two clamping rings 18 which are spaced apart and used for sleeving and clamping the arc-shaped supporting rod 6, the top of the adjusting plate 17 is provided with a contact plate 19, the clamping ring 18 and the arc-shaped supporting rod 6 are clamped, the adjusting plate 17 is fixed and limited, then the contact plate 19 contacts the tensioning jack 3, the contact plate 19 limits the tensioning jack 3, the stability of the tensioning jack 3 is ensured, and displacement of the tensioning jack 3 is avoided.

[0032] Finally: the above only for the preferred embodiments of the present application and not for limiting the present application, 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 jack mounting bracket, characterised in that: The utility model relates to a box girder (1) and a slide rail assembly installed in the box girder (1) for supporting jacking jacks (2) and tensioning jacks (3). The slide rail assembly comprises a slide rail frame (4) arranged in the box girder (1), and two groups of slide rail members are arranged on the front side of the slide rail frame (4). Each group of slide rail members comprises two slide rail support rods (5), a plurality of arc-shaped support rods (6) are arranged between the two slide rail support rods (5), and a plurality of first wedge-shaped limiters (7) are arranged at the bottom of the slide rail support rods (5). The same action plate (8) is arranged at the top of the rear end of the two slide rail support rods (5).

2. A jack mounting bracket according to claim 1, characterised in that: One side of one group of slide rail members is provided with a reinforcing rod (9), the plurality of arc-shaped support rods (6) on the slide rail members are fixed together with the reinforcing rod (9), and the rear end of the reinforcing rod (9) is fixed together with the front side of the slide rail frame (4).

3. A jack mounting bracket according to claim 1, wherein: The bottom frame (10) is arranged outside the rear end of the slide rail frame (4), and a support member is arranged on the front side of the bottom frame (10). The support member comprises four frame connecting rods (11) and four support rods (12) which are connected in an interlaced manner, the four frame connecting rods (11) correspond to the positions of the four slide rail support rods (5) in an up-down manner, and the second wedge-shaped limiters (13) are arranged at the junctions of the frame connecting rods (11) and the support rods (12).

4. A jack mounting bracket according to claim 3, wherein: The second wedge-shaped limiters (13) are arranged at the top of the bottom frame (10), and the middle support rods (14) are arranged inside the top ends of the second wedge-shaped limiters (13).

5. A jack mounting bracket according to claim 3, wherein: The second wedge-shaped limiters (13) are arranged inside the bottom ends of the bottom frame (10), and the lower support rods (15) are arranged at the bottom of the bottom frame (10), and the horizontal limiters (16) are arranged at the bottom of the lower support rods (15).

6. A jack mounting bracket according to claim 1, characterized in that: Each group of slide rail members is provided with a limiting member for limiting the tensioning jacks (3) at the top of the slide rail members. The limiting member comprises an adjusting plate (17) arranged between the two slide rail support rods (5), two clamping rings (18) are arranged at the bottom of the front and rear ends of the adjusting plate (17) and are used for clamping the arc-shaped support rods (6), and a touch plate (19) is arranged at the top of the adjusting plate (17).

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