Suspension construction platform for bridge construction

Abstract

The utility model provides a suspension construction platform for bridge construction, which relates to the technical field of bridge construction and comprises a middle support base, an outer lifting frame and a lower suspension construction platform, the outer lifting frame is arranged on one side of the middle support base, the lower suspension construction platform is slidably arranged at the lower end of the outer lifting frame, and an upper support is fixed at the top of the middle support base. An upper transverse frame in the horizontal direction is fixed to the upper portion of the upper support, a middle telescopic rod is slidably connected to the tail end of the upper transverse frame, a tail telescopic frame is slidably connected to the tail end of the middle telescopic rod, and a lower bearing frame is fixed to the lower portion of the tail telescopic frame. The length of a force arm from the lower bearing frame to the middle supporting base is larger than that of a force arm from the outer lifting frame to the middle supporting base, the outer lifting frame can be stabilized when the lower bearing frame is placed with less load, the carrying burden of the load is reduced, and the problem that a sandbag of a supporting part is located at the laborious end and is inconvenient to carry is solved. The weight of the sandbag and the like needs to be several times of the weight of a hanging construction platform to play a role in balancing, and the carrying burden of the sandbag is heavy.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a suspended construction platform for bridge construction. Background Art

[0002] During bridge construction and bridge maintenance, construction work is carried out through an external suspended construction platform. In order to ensure the stability of the suspended construction platform, a large number of sandbags need to be placed on the supporting part of the suspended construction platform on the bridge deck as counterweights.

[0003] There is a certain distance between the suspended construction platform and the supporting part of the suspended construction platform on the bridge deck. The distance from the suspended construction platform to the supporting part of the bridge deck is longer than the distance from the middle of the supporting part to the sandbags. The longer lever arm from the suspended construction platform to the supporting part of the bridge deck has a labor-saving effect, which causes the sandbags in the supporting part to be at the labor-intensive end. The load of the sandbags needs to be several times the weight of the suspended construction platform to play a balancing role. The number of sandbags is large, and the burden of carrying the sandbags is heavy. Summary of the Invention

[0004] The disclosed embodiments relate to a suspended construction platform for bridge construction. As the middle telescopic rod and the tail telescopic frame are extended and the distance from the middle support base is increased, the lever arm length from the lower load-bearing frame to the middle support base is greater than the lever arm length from the outer lifting frame to the middle support base. Fewer weight-bearing sandbags can be placed on the lower load-bearing frame to stabilize the outer lifting frame, thereby reducing the number of weight-bearing sandbags and the burden of carrying the weight-bearing sandbags.

[0005] The cam is fixed to the upper part of the lifting bridge, and the cam is fixed on the lower part of the lifting bridge to the lifting bridge, and the cam is fixed on the upper part of the lifting bridge to the lifting bridge, and the cam is fixed on the lower part of the lifting bridge.

[0006] In at least some embodiments, the head end of the upper horizontal frame is vertically slidably connected to the outer lifting frame, the cable of the electric winch is fixedly connected to the lower part of the outer lifting frame, a pulley for bending the cable is provided at the head end of the upper horizontal frame, and the electric winch drives the outer lifting frame, the side construction platform, and the lower suspended construction platform to rise and fall by pulling the rope.

[0007] In at least some embodiments, a side construction platform is fixedly provided at the lower portion of the outer lifting frame, and an electric worm is provided at the bottom of the lower end of the outer lifting frame, which is driven to rotate by a motor provided at the bottom of the lower end of the outer lifting frame.

[0008] In at least some embodiments, a bottom rack is fixedly provided at the bottom of the lower suspended construction platform, the lower suspended construction platform is located below the side construction platform, and an upper guardrail is fixedly provided at the upper part of the head end of the lower suspended construction platform.

[0009] In at least some embodiments, the lower suspended construction platform slides horizontally along the lower end of the outer lifting frame, the bottom rack and the electric worm are engaged and connected, the lower suspended construction platform moves horizontally to the bottom of the bridge, and personnel enter the lower suspended construction platform below through the opening on the side of the side construction platform. The personnel stand on the lower suspended construction platform to perform construction operations on the bottom surface of the bridge above.

[0010] In at least some embodiments, when the lower suspended construction platform is at the outermost side, the upper guardrail and the side opening of the side construction platform are fitted together, and guardrails are arranged around the upper part of the lower suspended construction platform and the side construction platform, and the upper guardrail closes the side guardrail opening of the side construction platform.

[0011] In at least some embodiments, the outer lifting frame and the lower load-bearing frame are respectively located on both sides of the middle support base.

[0012] The utility model provides a suspended construction platform for bridge construction, which has the following beneficial effects:

[0013] As the middle telescopic rod and the tail telescopic frame are extended and the distance from the middle support base increases, the length of the lever arm from the lower load-bearing frame to the middle support base is greater than the length of the lever arm from the outer lifting frame to the middle support base. Even if a smaller load is placed on the lower load-bearing frame, the outer lifting frame can be stabilized, the number of load-bearing sandbags is reduced, and the burden of carrying the load is reduced.

[0014] After the side construction platform descends to the bottom of the bridge, the lower suspended construction platform moves horizontally to just below the bridge. The lower suspended construction platform realizes construction operations on the upper bridge bottom surface, expanding the scope of use. The horizontal movement of the lower suspended construction platform will not be affected by the bridge pillars. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached figure:

[0018] Figure 1A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic diagram showing the external lifting frame structure of the present application is shown;

[0020] Figure 3 A schematic diagram showing the electric worm structure of the present application is shown;

[0021] Figure 4 A schematic diagram of the side construction platform structure of the present application is shown;

[0022] Figure 5 Shows a schematic structural diagram of the support base of the present application;

[0023] Figure 6 A schematic diagram showing the structure of the split state of this application;

[0024] Reference Signs List

[0025] 1. Middle support base; 101. Upper bracket; 102. Upper cross frame; 103. Electric winch; 104. Middle telescopic rod; 105. Tail telescopic frame; 106. Lower load-bearing frame;

[0026] 2. External lifting frame; 201. Side construction platform; 202. Electric worm gear;

[0027] 3. Lower suspended construction platform; 301. Bottom rack; 302. Upper guardrail. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] The utility model proposes a suspended construction platform for bridge construction, comprising: a middle support base 1, an outer lifting frame 2 and a lower suspended construction platform 3. An upper bracket 101 is fixed on the top of the middle support base 1, and pulleys are provided on both sides of the middle support base 1 for easy movement. A horizontal upper cross frame 102 is fixed on the upper part of the upper bracket 101, and an electric winch 103 is fixed on the top of the upper bracket 101. The head end of the upper cross frame 102 is vertically slidably connected to the outer lifting frame 2, and the cable of the electric winch 103 is fixedly connected to the lower part of the outer lifting frame 2. A pulley with a bent cable is provided at the head end of the upper cross frame 102, and the electric winch 103 drives the outer lifting frame 2 and the side lifting frame 2 to move by pulling the rope. The construction platform 201 and the lower suspended construction platform 3 rise and fall, and the tail end of the upper horizontal frame 102 is slidably connected to the middle telescopic rod 104, and the tail end of the middle telescopic rod 104 is slidably connected to the tail telescopic frame 105. The lower part of the tail telescopic frame 105 is fixed with a lower load-bearing frame 106. As the middle telescopic rod 104 and the tail telescopic frame 105 are extended and the distance from the middle support base 1 increases, the length of the lever arm from the lower load-bearing frame 106 to the middle support base 1 is greater than the length of the lever arm from the outer lifting frame 2 to the middle support base 1. The lower load-bearing frame 106 is on the labor-saving side. Even if the lower load-bearing frame 106 is placed with less weight, it can stabilize the outer lifting frame 2 and reduce the number of weight-bearing sandbags.

[0031] An outer lifting frame 2 is provided on one side of the middle supporting base 1, and a side construction platform 201 is fixedly provided at the lower part of the outer lifting frame 2, and an electric worm 202 is provided at the bottom of the lower end of the outer lifting frame 2. The electric worm 202 is driven to rotate by a motor provided at the bottom of the lower end of the outer lifting frame 2, and a bottom rack 301 is fixedly provided at the bottom of the lower suspended construction platform 3. The lower suspended construction platform 3 is located below the side construction platform 201, and an upper guardrail 302 is fixedly provided on the upper part of the head end of the lower suspended construction platform 3. The lower end of the outer lifting frame 2 is slid with the lower suspended construction platform 3. When the lower suspended construction platform 3 is at the outermost side, the upper guardrail 302 is fitted with the side opening of the side construction platform 201, and the upper guardrail 302 closes the side opening of the side construction platform 201 to ensure the safety of people inside the upper guardrail 302 and the side opening of the side construction platform 201. The outer lifting frame 2 and the lower load-bearing frame 106 are respectively located on both sides of the middle supporting base 1.

[0032] In the disclosed embodiment, the lower suspended construction platform 3 slides horizontally along the lower end of the outer lifting frame 2, the bottom rack 301 and the electric worm 202 are engaged and connected, and the lower suspended construction platform 3 moves horizontally to the bottom of the bridge. Personnel enter the lower suspended construction platform 3 below from the opening on the side of the side construction platform 201, and personnel stand on the lower suspended construction platform 3 to perform construction operations on the bottom surface of the bridge above. The construction range is expanded from the vertical surface of the outer side of the bridge to the bottom of the bridge.

[0033] Example 2. On the basis of Example 1, the outer sliding side of the lower suspended construction platform 3 is provided with an extension platform and is automatically retracted and extended through the engagement of the electric worm 202 and the rack, so that the extension platforms of the lower suspended construction platform 3 on both sides of the bridge move horizontally, and the extension platforms of the lower suspended construction platform 3 on both sides are docked and fixed, so that the lower suspended construction platform 3 can perform construction work on the bottom of the bridge deck. When encountering a bridge pillar, the extension platform of the lower suspended construction platform 3 moves outward and shrinks, and the lower suspended construction platform 3 also moves and shrinks synchronously to realize the bypassing operation of the bridge pillar, eliminating the situation where the existing integrated lower suspended construction platform 3 will be blocked by the bridge pillar, and the lower suspended construction platform 3 needs to be removed again, moved from the ground to bypass the bridge pillar, and then connected to the cable on the bridge deck to rise.

[0034] The working principle of this embodiment is as follows: the middle support base 1 is on the bridge deck, the outer lifting frame 2 and the lower suspended construction platform 3 are both on the outside of the bridge deck, and the lower load-bearing frame 106 is used to place sandbags and the like. As the middle telescopic rod 104 and the tail telescopic frame 105 are extended and the distance from the middle support base 1 increases, the length of the lever arm from the lower load-bearing frame 106 to the middle support base 1 is greater than the length of the lever arm from the outer lifting frame 2 to the middle support base 1. The lower load-bearing frame 106 is on the labor-saving side, and even less load can be placed on the lower load-bearing frame 106 to stabilize the outer lifting frame 2, thereby reducing the number of load-bearing sandbags and the burden of carrying the load.

[0035] The electric winch 103 drives the outer lifting frame 2, the side construction platform 201 and the lower suspended construction platform 3 to rise and fall by pulling the rope. The personnel stand on the outer lifting frame 2 to carry out construction on the side of the bridge. After the side construction platform 201 descends to the bottom of the bridge, the electric worm 202 rotates to engage the bottom rack 301, and the lower suspended construction platform 3 moves horizontally to the bottom of the bridge. The personnel enter the lower suspended construction platform 3 below through the opening on the side of the side construction platform 201. The personnel stand on the lower suspended construction platform 3 to carry out construction operations on the bottom surface of the bridge above, thereby expanding the construction scope. When passing the bridge pillars, the horizontal movement of the lower suspended construction platform 3 bypasses the bridge pillars and will not be blocked by the bridge pillars.

[0036] In this article, there are several points to note:

[0037] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0038] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0039] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A suspended construction platform for bridge construction, comprising: A middle support base (1), an outer lifting frame (2) and a lower suspended construction platform (3); characterized in that an outer lifting frame (2) is provided on one side of the middle support base (1), a lower suspended construction platform (3) is slidably mounted on the lower end of the outer lifting frame (2), an upper bracket (101) is fixed on the top of the middle support base (1), a horizontal upper cross frame (102) is fixed on the upper part of the upper bracket (101), an electric winch (103) is fixed on the top of the upper bracket (101), a middle telescopic rod (104) is slidably connected to the tail telescopic frame (105) at the tail end of the middle telescopic rod (104), and a lower load-bearing frame (106) is fixed to the lower part of the tail telescopic frame (105).

2. A suspended construction platform for bridge construction according to claim 1, characterized in that: The head end of the upper horizontal frame (102) is vertically slidably connected to the outer lifting frame (2), and the cable of the electric hoist (103) is fixedly connected to the lower part of the outer lifting frame (2).

3. A suspended construction platform for bridge construction according to claim 1, characterized in that: A side construction platform (201) is fixedly provided at the lower portion of the outer lifting frame (2), and an electric worm (202) is provided at the bottom of the lower end of the outer lifting frame (2). The electric worm (202) is driven to rotate by a motor provided at the bottom of the lower end of the outer lifting frame (2).

4. A suspended construction platform for bridge construction according to claim 3, characterized in that: A bottom rack (301) is fixedly provided at the bottom of the lower hanging construction platform (3), the lower hanging construction platform (3) is located below the side construction platform (201), and an upper guardrail (302) is fixedly provided at the upper portion of the head end of the lower hanging construction platform (3).

5. A suspended construction platform for bridge construction according to claim 4, characterized in that: The lower suspended construction platform (3) slides horizontally along the lower end of the outer lifting frame (2), and the bottom rack (301) and the electric worm (202) are meshed and connected.

6. A suspended construction platform for bridge construction according to claim 5, characterized in that: When the lower hanging construction platform (3) is at the outermost side, the upper guardrail (302) and the side surface of the side construction platform (201) are in contact with each other.

7. A suspended construction platform for bridge construction according to claim 1, characterized in that: The outer lifting frame (2) and the lower load-bearing frame (106) are respectively located on both sides of the middle support base (1).

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