Continuous rigid frame bridge hanging basket walking limiting device

Abstract

The utility model discloses a continuous rigid frame bridge hanging basket walking limiting device, and belongs to the technical field of bridge construction. A continuous rigid frame bridge hanging basket walking limiting device comprises two rails which are fixed to the upper end of a bridge and are parallel to each other, the bottom of a hanging basket is in sliding fit with the two rails, a push plate capable of sliding in the length direction of the rails is arranged between the two rails, and a supporting plate is arranged on the push plate. A driving structure is arranged on the supporting plate to drive the push plate to slide in the length direction of the track and push the hanging basket to move; a pressing plate assembly is arranged at the upper end of the supporting plate and comprises two sliding frames capable of synchronously and reversely sliding, the sliding direction is perpendicular to the length direction of the rail, pressing plates are arranged on the sliding frames, the pressing plates can generate extrusion force on the hanging basket, walking of the hanging basket is limited through static friction force, and therefore it is guaranteed that after the hanging basket is pushed to the designated position, the hanging basket is pushed to the designated position. And the position stability is further ensured, so that construction is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a walking limiting device for a hanging basket of a continuous rigid frame bridge. Background Art

[0002] During the construction of bridges, in order to meet the requirements of construction, it is necessary to install a hanging basket on the side or end of the bridge. Relying on the movement of the "hanging basket", the concrete bridge body cast on site is produced in the "hanging basket". After the construction workers cast a certain length each time, when the bridge body hardens and reaches sufficient strength, the hydraulic device will push the hanging basket forward, and then cast a new section of the bridge body; the hanging basket is mainly composed of welded steel plates. Because the hanging basket itself is heavy, it is mostly transported and installed on rails; and when the hanging basket needs to be moved, the hanging basket is generally placed on the track and then pushed by a jack to move on the track.

[0003] When the hanging basket reaches the designated construction position, before pouring concrete, the hanging basket needs to be limited to prevent it from moving during the construction process and affecting the construction. For this purpose, a continuous rigid frame bridge hanging basket moving limiting device is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a continuous rigid frame bridge hanging basket travel limiting device, which solves the problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The continuous rigid frame bridge hanging basket travel limiting device comprises two rails fixed to the upper end of the bridge and parallel to each other, the bottom of the hanging basket is slidably matched with the two rails, a support plate capable of sliding along the length direction of the rails is arranged between the two rails, a push plate is arranged on the support plate, and a driving structure is arranged on the support plate to drive the push plate to slide along the length direction of the rails and push the hanging basket to move;

[0007] A pressure plate assembly is arranged at the upper end of the support plate. The pressure plate assembly includes two sliding frames that can slide synchronously in opposite directions, and the sliding direction is perpendicular to the length direction of the track. A pressure plate is arranged on the sliding frame, and the pressure plate can generate a squeezing force on the hanging basket.

[0008] Furthermore, the support plate is slidably connected to the track in its length direction, two second fixed plates are fixed to the upper end of the bridge, a rotatable first screw rod is arranged between the two second fixed plates, the first screw rod passes through the support plate and is threadedly connected to the support plate.

[0009] Furthermore, the thread lead angle of the first screw is smaller than the equivalent friction angle.

[0010] Furthermore, a protrusion is respectively arranged on the opposite sides of the support plate, a slide groove is respectively opened on the inner side of the two tracks, and the two protrusions slide in cooperation with the two slide grooves respectively.

[0011] Furthermore, a first fixing plate is fixed to the upper end of the support plate, a jack is fixed to the upper end of the first fixing plate, and a telescopic shaft of the jack is fixed to the push plate.

[0012] Furthermore, the two sliding frames are both slidably connected to the support plate, two third fixed plates are fixed on the upper end of the support plate, a rotatable second screw rod is arranged between the two third fixed plates, and the two ends of the second screw rod are respectively provided with a first external thread and a second external thread with opposite rotation directions and equal pitches, and the first external thread and the second external thread can respectively pass through the two sliding frames and be threadedly connected to the sliding frames.

[0013] Beneficial effects of the utility model:

[0014] Two parallel tracks are fixed on the bridge deck, a support plate that can slide along the length direction of the two tracks is set between the two tracks, a driving structure is set on the support plate to drive the push plate to slide, and can push the hanging basket to slide on the track, and the position of the support plate on the track is adjustable, thereby increasing the moving stroke of the hanging basket; in addition, a pressure plate assembly is set at the upper end of the support plate, two sliding frames that can slide synchronously in opposite directions are set in the pressure plate assembly, and a pressure plate is set at the end of the sliding frame to apply pressure to the hanging basket, and static friction is used to limit the movement of the hanging basket, so as to ensure that after the hanging basket is pushed to the specified position, the stability of the position is further ensured to facilitate construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the travel limiting mechanism of the utility model;

[0017] Figure 2 It is a schematic diagram of the support plate structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the pressing plate assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the second screw structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the drive assembly of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 As shown, the continuous rigid frame bridge hanging basket travel limit device includes two rails 1, the rails 1 are fixedly installed on the upper end surface of the bridge that has been completed, the two rails 1 are parallel to each other, and the bottom of the hanging basket can slide with the two rails 1 at the same time and can slide along the length direction of the rails 1;

[0023] A support plate 2 is provided between the two rails 1, and the support plate 2 can slide along the length direction of the rails 1; Figure 2 As shown, a first fixing plate 22 is provided on one side of the upper end of the support plate 2, a jack 5 is fixed on the first fixing plate 22, a push plate 6 is fixed to the end of the telescopic shaft of the jack 5, the push plate 6 can contact the bottom of the track 1, and under the pushing action of the jack 5, can drive the hanging basket to move along the length direction of the track 1;

[0024] Furthermore, by controlling the support plate 2 to slide along the length direction of the track 1 , the position of the jack 5 in the length direction of the track 1 can be changed, thereby extending the pushing stroke of the jack 5 and increasing the walking range of the hanging basket on the track 1 .

[0025] In this embodiment, the support plate 2 is slidably connected to the track 1 in the length direction thereof, two second fixed plates 3 are fixed on the bridge deck, a first screw rod 4 is rotatably connected between the two second fixed plates 3, the first screw rod 4 penetrates the support plate 2 and is threadedly connected to the support plate 2, and a motor is provided on one of the second fixed plates 3 to drive the first screw rod 4 to rotate, so as to drive the support plate 2 to slide; and the first screw rod 4 needs to have a self-locking ability, that is, the thread lead angle of the first screw rod 4 is less than the equivalent friction angle, so as to ensure that the position of the support plate 2 in the length direction of the track 1 remains stable after adjustment;

[0026] It is worth mentioning that in this embodiment, a protrusion 21 is respectively provided on the opposite sides of the support plate 2, and a slide groove 11 is respectively opened on the inner side of the two rails 1. The two protrusions 21 slide in cooperation with the two slide grooves 11 respectively to realize the sliding connection between the support plate 2 and the rail 1 in its length direction.

[0027] Of course, the method of driving the support plate 2 to slide includes but is not limited to the first screw rod 4 and other structures in this embodiment. In some embodiments, the support plate 2 can also be directly driven to slide by setting linear drive components such as telescopic rods and hydraulic cylinders.

[0028] In addition, the driving structure for driving the push plate 6 to slide includes but is not limited to the jack 5 in this embodiment, and in some embodiments, it can also be an oil cylinder.

[0029] A pressure plate assembly 7 is also provided at the upper end of the support plate 2. The pressure plate assembly 7 can apply pressure to the bottom of the hanging basket and generate extrusion force, and use static friction to limit the movement of the hanging basket, so as to ensure that after the hanging basket is pushed to the designated position, the stability of the position is further ensured, so as to facilitate construction;

[0030] like Figure 3 As shown, the pressing plate assembly 7 includes two sliding frames 71 that can synchronously slide in opposite directions on the upper end of the support plate 2, and the sliding direction is perpendicular to the length direction of the track 1. The sliding frame 71 is L-shaped, and a pressing plate 711 is provided at the end of the sliding frame 71. By controlling the two sliding frames 711 to synchronously slide in opposite directions, the two pressing plates 711 can act on the bottom of the hanging basket and generate a squeezing force, so as to use the static friction between the hanging basket and the pressing plate 711 to limit the movement of the hanging basket;

[0031] In this embodiment, the two sliding frames 71 are slidably connected to the support plate 2, and two third fixing plates 72 are fixed to the upper end of the support plate 2. A second screw rod 73 capable of rotating is arranged between the two third fixing plates 72. Figure 4 As shown, the two ends of the second screw rod 73 are respectively provided with a first external thread 731 and a second external thread 732 with opposite rotation directions and equal pitches. The first external thread 731 and the second external thread 732 can respectively penetrate the two sliding frames 71 and be threadedly connected with the sliding frames 71. By controlling the rotation of the second screw rod 73, the synchronous reverse sliding of the two sliding frames 71 can be achieved, so that the two pressure plates 711 act on the bottom of the hanging basket respectively; and the second screw rod 73 needs to have self-locking properties, that is, the thread lead angles of the first external thread 731 and the second external thread 732 are both smaller than the equivalent friction angle, so as to ensure the stable pressing force of the pressure plate 711 on the hanging basket;

[0032] Of course, the method of driving the two sliding frames 71 to slide synchronously in opposite directions includes but is not limited to the second screw rod 73 in this embodiment. In some embodiments, two hydraulic cylinders can be provided to drive the two sliding frames 71 to slide respectively.

[0033] In addition, in this embodiment, a driving assembly 8 is provided at the upper end of the support plate 2 to drive the second screw rod 73 to rotate. Figure 5As shown, the driving assembly 8 includes a fourth fixing plate 81 fixed to the upper end of the support plate 2, a motor 82 is fixed on the fourth fixing plate 81, a first gear 83 is fixed to the end of the driving shaft of the motor 82, a second gear 74 is fixed to the second screw rod 73, the second gear 74 and the first gear 83 are meshed with each other, and the second screw rod 73 can rotate under the drive of the motor 82;

[0034] In some embodiments, the second screw rod 73 can also be driven to rotate by directly setting a motor on one of the fourth fixed plates 81. However, setting the motor on one side of the fourth fixed plate 81 is likely to interfere with the hanging basket.

[0035] Working principle:

[0036] Two parallel rails 1 are fixed on the bridge deck, a support plate 2 capable of sliding along the length direction thereof is arranged between the two rails 1, a driving structure (such as a jack or a cylinder) is arranged on the support plate 2 to drive the push plate 6 to slide, and the basket can be pushed to slide on the rail 1, and the position of the support plate 2 on the rail 1 is adjustable, thereby increasing the moving stroke of the basket; in addition, a pressure plate assembly 7 is arranged at the upper end of the support plate 2, two sliding frames 71 capable of synchronously sliding in opposite directions are arranged in the pressure plate assembly 7, and a pressure plate 711 is arranged at the end of the sliding frame 71 to apply pressure to the basket, and static friction is used to limit the movement of the basket, so as to ensure that after the basket is pushed to the specified position, the stability of the position is further ensured, so as to facilitate construction.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A travel limiting device for a continuous rigid frame bridge hanging basket, comprising two rails (1) fixed to the upper end of the bridge and parallel to each other, the bottom of the hanging basket being in sliding cooperation with the two rails (1), characterized in that: A support plate (2) capable of sliding along the length direction of the track (1) is provided between the two tracks (1), a push plate (6) is provided on the support plate (2), and a driving structure is provided on the support plate (2) to drive the push plate (6) to slide along the length direction of the track (1) and push the hanging basket to move; A pressure plate assembly (7) is arranged at the upper end of the support plate (2), the pressure plate assembly (7) comprising two sliding frames (71) capable of synchronously sliding in opposite directions, and the sliding direction is perpendicular to the length direction of the track (1), and a pressure plate (711) is arranged on the sliding frame (71), and the pressure plate (711) can generate a squeezing force on the hanging basket.

2. The continuous rigid frame bridge hanging basket travel limiting device according to claim 1 is characterized in that: The support plate (2) is slidably connected to the track (1) in the length direction thereof; two second fixed plates (3) are fixed to the upper end of the bridge; a rotatable first screw rod (4) is arranged between the two second fixed plates (3); the first screw rod (4) passes through the support plate (2) and is threadedly connected to the support plate (2).

3. The continuous rigid frame bridge hanging basket travel limiting device according to claim 2 is characterized in that: The thread lead angle of the first screw rod (4) is smaller than the equivalent friction angle.

4. The continuous rigid frame bridge hanging basket travel limiting device according to claim 2 is characterized in that: A protrusion (21) is respectively arranged on the opposite sides of the support plate (2), and a slide groove (11) is respectively opened on the inner side of the two tracks (1), and the two protrusions (21) slide in cooperation with the two slide grooves (11) respectively.

5. The continuous rigid frame bridge hanging basket travel limiting device according to claim 1 is characterized in that: A first fixing plate (22) is fixed to the upper end of the support plate (2), a jack (5) is fixed to the upper end of the first fixing plate (22), and a telescopic shaft of the jack (5) is fixed to the push plate (6).

6. The continuous rigid frame bridge hanging basket travel limiting device according to claim 1 is characterized in that: The two sliding frames (71) are both slidably connected to the support plate (2); two third fixing plates (72) are fixed to the upper end of the support plate (2); a rotatable second screw rod (73) is arranged between the two third fixing plates (72); two ends of the second screw rod (73) are respectively provided with a first external thread (731) and a second external thread (732) with opposite rotation directions and equal pitches; the first external thread (731) and the second external thread (732) can respectively penetrate the two sliding frames (71) and be threadedly connected to the sliding frames (71).

7. The continuous rigid frame bridge hanging basket travel limiting device according to claim 6 is characterized in that: The thread lead angles of the first external thread (731) and the second external thread (732) are both smaller than the equivalent friction angle.

8. The continuous rigid frame bridge hanging basket travel limiting device according to claim 1 is characterized in that: A driving assembly (8) is arranged at the upper end of the support plate (2), and the driving assembly (8) comprises a fourth fixing plate (81) fixed to the upper end of the support plate (2), a motor (82) is fixed on the fourth fixing plate (81), a first gear (83) is fixed to the end of the driving shaft of the motor (82), a second gear (74) is fixed on the second screw rod (73), and the second gear (74) and the first gear (83) are meshed with each other.

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