Arch bridge suspender tensioning device

Abstract

The utility model relates to the technical field of bridge construction engineering, in particular to an arch bridge suspender tensioning device which comprises a base, a fixing assembly, a tensioning assembly and a connecting assembly. The fixing assembly comprises a plurality of guide lead screws, a sliding seat and a fixing seat, the guide lead screws are fixedly connected with the base and located at the top of the base, the sliding seat is slidably connected with the guide lead screws and located on the outer sides of the guide lead screws, and the fixing seat is slidably connected with the guide lead screws and located above the sliding seat. The problems that when the bridge deck tensioning device for the suspender of the arch bridge is used, the suspender is tensioned through a jack, the suspender easily rebounds and deforms after the jack is detached, the strength of the arch bridge is reduced, and potential safety hazards are caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction engineering, in particular to an arch bridge hanger tensioning device. Background Art

[0002] The traditional tensioning method is to tension at the top of the arch rib or under the bridge. This tensioning method requires the installation of a tensioning platform at high altitude. The tensioning space is small and the safety risk is high. In addition, the tensioning platform moves with the position of the tensioning top rod, which has a great impact on the traffic under the bridge and slows the tensioning progress.

[0003] The existing announcement number CN211113202U discloses an arch bridge suspender deck tensioning device, including a suspender, which is connected to an anchor head, and the anchor head passes through an anchor pad and a tensioning base in sequence and is connected to an anchor head nut and a tensioning rod respectively, the tensioning base is fixed on the anchor pad, and the tensioning base is connected to an anchor box; the tensioning rod passes through a tensioning bottom beam and is connected to a tensioning rod nut, and a lifting device is installed on the tensioning bottom beam, and the lifting device cooperates with the tensioning base. The utility model uses an anchor pad as a support point, is simple to use as a whole, has clear force, is safe and reliable, can be recycled and reused, has both economic benefits and environmental protection functions, and can be widely used in the field of arch bridge suspender tensioning.

[0004] However, when the above-mentioned arch bridge hanger deck tensioning device is in use, the hanger is tensioned by a jack. After the jack is removed, the hanger is prone to rebound and deform, resulting in reduced strength of the arch bridge, creating a safety hazard. Utility Model Content

[0005] The utility model aims to provide an arch bridge hanger tensioning device, which solves the problem that when the arch bridge hanger deck tensioning device is in use, the hanger is tensioned by a jack, and after the jack is removed, the hanger is prone to rebound and deform, resulting in reduced strength of the arch bridge and causing safety hazards.

[0006] To achieve the above-mentioned purpose, the utility model provides an arch bridge hanger tensioning device, including a base, a fixing assembly, a tensioning assembly and a connecting assembly; the fixing assembly includes a guide screw, a sliding seat and a fixing seat, the number of the guide screws is multiple, and the multiple guide screws are respectively fixedly connected to the base and are respectively located on the top of the base, the sliding seat is slidably connected to the guide screw and is located on the outside of the guide screw, the fixing seat is slidably connected to the guide screw and is located above the sliding seat, the tensioning assembly is connected to the base, and the connecting assembly is connected to the fixing seat.

[0007] Among them, the fixed assembly also includes a fixed motor, a driving gear and a fixed gear. The fixed motor is fixedly connected to the slide seat and is located on the top of the slide seat. The driving gear is connected to the fixed motor and is located on the top of the fixed motor. The number of the fixed gears is three, and the three fixed gears are respectively threadedly connected to the guide screw and respectively mesh with the driving gears.

[0008] Among them, the tensioning assembly includes a tensioning seat and a jack. There are multiple tensioning seats, and the multiple tensioning seats are respectively detachably connected to the base and are respectively located on the top of the base. There are multiple jacks, and the multiple jacks are respectively fixedly connected to the tensioning seats and are respectively located on the top of the tensioning seats.

[0009] Wherein, the tensioning assembly also includes a top plate and fixing bolts. There are multiple top plates, and the multiple top plates are respectively fixedly connected to the jacks and are respectively located on the tops of the jacks. There are multiple fixing bolts, and the multiple fixing bolts are respectively threadedly connected to the fixing seats and respectively pass through the top plates.

[0010] Wherein, the connecting assembly includes a connecting seat, an anchor pad and a suspension rod, the connecting seat is fixedly connected to the fixing seat and is located on the top of the fixing seat, the anchor pad is fixedly connected to the connecting seat and is located on the top of the connecting seat, and the suspension rod is detachably connected to the connecting seat and passes through the connecting seat and the anchor pad.

[0011] The utility model discloses an arch bridge hanger tensioning device, the base provides a supporting function for the device, the guide screw rod provides a limiting function for the fixed gear, and also provides a limiting and guiding function for the sliding seat and the fixed seat, the sliding seat provides a supporting function for the fixed motor, and the fixed seat provides a supporting function for the connecting assembly. When the device is in use, the fixed seat is jacked up by the jack, and after jacking up, the fixed motor rotates to drive the driving gear and the fixed gear to rotate, so that the fixed gear drives the driving gear and the fixed motor to move up along the guide screw rod, so that a plurality of the fixed gears are against the bottom of the fixed seat, even if the jack needs to be removed later, the support of the fixed seat by the fixed gear can avoid the arch bridge hanger from rebounding and deforming, thus solving the problem that when the arch bridge hanger deck tensioning device is in use, the hanger is tensioned by the jack, and the hanger is easy to rebound and deform after the jack is removed, resulting in reduced strength of the arch bridge and causing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the arch bridge hanger tensioning device of the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the fixing assembly of the first embodiment of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the tensioning assembly of the first embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the overall structure of the arch bridge hanger tensioning device of the second embodiment of the utility model.

[0017] In the figure: 101-base, 102-guide screw, 103-sliding seat, 104-fixed seat, 105-fixed motor, 106-driving gear, 107-fixed gear, 108-tensioning seat, 109-jack, 110-top plate, 111-fixing bolt, 201-connecting seat, 202-anchor pad, 203-suspender rod. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] The first embodiment of the present application is:

[0020] See also Figures 1 to 3 ,in, Figure 1 It is a schematic diagram of the overall structure of the arch bridge hanger tensioning device of the first embodiment of the utility model. Figure 2 is a schematic structural diagram of a fixing assembly of the first embodiment of the utility model, Figure 3 It is a structural schematic diagram of the tensioning assembly of the first embodiment of the utility model. The utility model provides an arch bridge hanger tensioning device, including a base 101, a fixing assembly and a tensioning assembly, the fixing assembly includes a guide screw 102, a slide 103, a fixing seat 104, a fixing motor 105, a driving gear 106 and a fixed gear 107, and the tensioning assembly includes a tensioning seat 108, a jack 109, a top plate 110 and a fixing bolt 111; the above-mentioned scheme solves the problem that when the arch bridge hanger deck tensioning device is in use, the hanger is tensioned by the jack, and the hanger is prone to rebound and deformation after the jack is removed, resulting in a reduction in the strength of the arch bridge, causing a safety hazard. It can be understood that the above-mentioned scheme can be used in the scenario of fixing the arch bridge hanger after tensioning, and can also be used to solve the arch bridge hanger connection problem.

[0021] According to this specific embodiment, the number of the guide screw rods 102 is multiple, and the multiple guide screw rods 102 are respectively fixedly connected to the base 101 and are respectively located on the top of the base 101. The slide 103 is slidably connected to the guide screw rod 102 and is located on the outside of the guide screw rod 102. The fixed seat 104 is slidably connected to the guide screw rod 102 and is located above the slide 103. The tensioning assembly is connected to the base 101, and the connecting assembly is connected to the fixed seat 104. The base 101 provides support for the device, and the guide screw rod 102 provides a limiting function for the fixed gear 107, and at the same time provides limiting and guiding functions for the slide 103 and the fixed seat 104. The slide seat 103 provides support for the fixed motor 105, and the fixed seat 104 provides support for the connecting assembly. When the device is in use, the fixed seat 104 is lifted up by the jack 109. After being lifted up, the fixed motor 105 rotates to drive the driving gear 106 and the fixed gear 107 to rotate, so that the fixed gear 107 drives the driving gear 106 and the fixed motor 105 to move up along the guide screw 102, so that multiple fixed gears 107 are against the bottom of the fixed seat 104. Even if the jack 109 needs to be removed later, the support of the fixed gear 107 to the fixed seat 104 can avoid the rebound and deformation of the arch bridge hanger.

[0022] Among them, the fixed motor 105 is fixedly connected to the slide 103 and is located at the top of the slide 103, the driving gear 106 is connected to the fixed motor 105 and is located at the top of the fixed motor 105, the number of the fixed gears 107 is three, the three fixed gears 107 are respectively threadedly connected to the guide screw 102, and are respectively meshed with the driving gear 106, the fixed motor 105 provides power for the fixed assembly, the driving gear 106 provides transmission and limiting functions for the fixed gear 107, and a gear ring connected to the guide screw 102 is provided inside the fixed gear 107. When the fixed motor 105 rotates, the driving gear 106 and the fixed gear 107 can be driven to rotate synchronously, so that the fixed gear 107 is against the bottom of the fixed seat 104, which is convenient for fixing and limiting the position of the fixed seat 104.

[0023] Secondly, there are multiple tensioning seats 108, which are detachably connected to the base 101 and located at the top of the base 101 respectively. There are multiple jacks 109, which are fixedly connected to the tensioning seats 108 and located at the top of the tensioning seats 108 respectively. The tensioning seat 108 provides support for the jacks 109, and the jacks 109 lift up the fixed seat 104, so that the arch bridge hanger can be tensioned easily by moving the fixed seat 104.

[0024] Again, there are multiple top plates 110, which are respectively fixedly connected to the jack 109 and are respectively located on the top of the jack 109. There are multiple fixing bolts 111, which are respectively threadedly connected to the fixing seat 104 and pass through the top plates 110. The top plate 110 is used to connect the jack 109 and the fixing seat 104 through the fixing bolts 111, so as to facilitate the installation and disassembly of the jack 109.

[0025] In the arch bridge suspender tensioning device of the present embodiment, the base 101 provides support for the device, the guide screw 102 provides a limiting function for the fixed gear 107, and provides limiting and guiding functions for the slide 103 and the fixed seat 104, the slide 103 provides support for the fixed motor 105, and the fixed seat 104 provides support for the connecting assembly. When the device is used, the fixed seat 104 is lifted up by the jack 109, and after being lifted up, the fixed motor 105 is rotated to drive the driving gear 106 and the fixed gear 107. 07 rotates, so that the fixed gear 107 drives the driving gear 106 and the fixed motor 105 to move upward along the guide screw 102, so that the multiple fixed gears 107 are against the bottom of the fixed seat 104. Even if the jack 109 needs to be removed later, the support of the fixed seat 104 by the fixed gear 107 can avoid the rebound and deformation of the arch bridge hanger, and solves the problem that when the arch bridge hanger deck tensioning device is in use, the hanger is tensioned by the jack, and the hanger is easy to rebound and deform after the jack is removed, resulting in reduced strength of the arch bridge and causing safety hazards.

[0026] The second embodiment of the present application is:

[0027] Based on the first embodiment, please refer to Figure 4 ,in, Figure 4 It is a schematic diagram of the overall structure of the arch bridge hanger tensioning device of the second embodiment of the utility model.

[0028] The arch bridge hanger tensioning device of this embodiment further includes a connecting assembly, which includes a connecting seat 201, an anchor pad 202 and a hanger 203.

[0029] According to this specific embodiment, the connecting seat 201 is fixedly connected to the fixing seat 104 and is located on the top of the fixing seat 104; the anchor pad 202 is fixedly connected to the connecting seat 201 and is located on the top of the connecting seat 201; the suspension rod 203 is detachably connected to the connecting seat 201 and passes through the connecting seat 201 and the anchor pad 202; the connecting seat 201 provides support for the anchor pad 202 and the suspension rod 203; and the anchor pad 202 provides a limiting function for the suspension rod 203.

[0030] In the arch bridge hanger rod tensioning device of this embodiment, the connecting seat 201 provides support for the anchor pad 202 and the hanger rod 203 , and the anchor pad 202 provides a limiting function for the hanger rod 203 .

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An arch bridge hanger tensioning device, comprising a base, characterized in that: It also includes a fixing component, a tensioning component and a connecting component; The fixing assembly includes a guide screw, a sliding seat and a fixing seat. There are multiple guide screws, and the multiple guide screws are respectively fixedly connected to the base and are respectively located on the top of the base. The sliding seat is slidably connected to the guide screw and is located on the outside of the guide screw. The fixing seat is slidably connected to the guide screw and is located above the sliding seat. The tensioning assembly is connected to the base, and the connecting assembly is connected to the fixing seat.

2. The arch bridge hanger rod tensioning device according to claim 1, characterized in that: The fixed assembly also includes a fixed motor, a driving gear and a fixed gear. The fixed motor is fixedly connected to the slide seat and is located on the top of the slide seat. The driving gear is connected to the fixed motor and is located on the top of the fixed motor. There are three fixed gears. The three fixed gears are respectively threadedly connected to the guide screw and respectively mesh with the driving gears.

3. The arch bridge hanger rod tensioning device according to claim 1, characterized in that: The tensioning assembly includes a tensioning seat and a jack. There are multiple tensioning seats, and the multiple tensioning seats are detachably connected to the base and are respectively located on the top of the base. There are multiple jacks, and the multiple jacks are fixedly connected to the tensioning seats and are respectively located on the top of the tensioning seats.

4. The arch bridge hanger rod tensioning device according to claim 3, characterized in that: The tensioning assembly also includes a top plate and fixing bolts. There are multiple top plates, which are respectively fixedly connected to the jacks and respectively located on the tops of the jacks. There are multiple fixing bolts, which are respectively threadedly connected to the fixing seats and respectively pass through the top plates.

5. The arch bridge hanger rod tensioning device according to claim 1, characterized in that: The connecting assembly includes a connecting seat, an anchor pad and a suspension rod. The connecting seat is fixedly connected to the fixing seat and is located on the top of the fixing seat. The anchor pad is fixedly connected to the connecting seat and is located on the top of the connecting seat. The suspension rod is detachably connected to the connecting seat and passes through the connecting seat and the anchor pad.

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