Portable protection device applied to on-site prestress tension

Abstract

The utility model discloses a portable protective device applied to field prestress tension, which is applied to the field of protective devices and comprises an anti-collision plate, a support plate is arranged on the back of the anti-collision plate, and a rotating rod is in threaded connection with the front of the anti-collision plate. According to the anti-collision device, the rubber pad is installed on the protection plate and can buffer the impact of the popped anchorage device and the steel strand, and the buffer spring is arranged on the surface of the guide rod on the anti-collision plate in a sleeving mode, so that when the anchorage device and the steel strand impact the anti-collision plate, the anti-collision plate has buffering force towards the supporting plate, and the anti-collision effect is improved. The sleeves are installed on the front face of the matched anti-collision plate, the intercepting rope net is installed between the sleeves, a circle of protection is formed, protection is conducted when the anchorage device and the steel strand collide with the protection plate and then rebound, the anchorage device and the steel strand are prevented from being cast, and the anti-collision performance of the anchorage device and the steel strand is improved. And the safety during prestress tensioning work is improved.

Description

Technical Field

[0001] The utility model relates to the field of protective devices, in particular to a convenient protective device used for on-site prestressed tensioning. Background Art

[0002] During the prestressing process of the bridge, it is strictly forbidden to stand opposite the jack. Operators should stand on both sides of the jack to prevent the anchors and steel strands from popping out and injuring people. The space on the work site is limited, especially the crossbeam position of the bridge in the urban project. It is likely that normal social vehicles pass on the outside. The safety requirements in this case are higher. Therefore, it is necessary to set a protective device in front of the jack to prevent the anchors and steel strands from popping out during the tensioning process. At present, there is no device specifically used to protect the prestressed anchors and steel strands from popping out on the market. The safety factor is low during prestressing construction. In order to solve the problems raised in the rising background, we propose a convenient protective device for on-site prestressing. Utility Model Content

[0003] The utility model aims to provide a convenient protective device applied to on-site prestressed tensioning, which has the advantage of good protective effect.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a convenient protective device used for on-site prestressed tensioning, including an anti-collision plate, a support plate is arranged on the back of the anti-collision plate, a rotating rod is threadedly connected to the front of the anti-collision plate, the number of the rotating rods is four, a sleeve is rotatably connected to the surface of the rotating rod through a bearing, an interception rope net is installed between two of the sleeves through a fixing part, a buffer spring is arranged between the anti-collision plate and the support plate, a groove body is opened on the back of the support plate, a telescopic rod is rotatably connected to the interior of the groove body through a rotating shaft, and the output end of the telescopic rod is hinged to a limit plate through a hinge.

[0005] By adopting the above technical scheme, the utility model installs a rubber pad on the protective plate to buffer the impact of the pop-up anchor and the steel strand. A buffer spring is sleeved on the surface of the guide rod passing through the anti-collision plate. When the anchor and the steel strand hit the anti-collision plate, the anti-collision plate has a buffering force in the direction of the support plate, and further unloads the force generated by the collision between the anchor and the steel strand. A sleeve is installed on the front side of the anti-collision plate, and an intercepting rope net is installed between the sleeves to form a circle of protection. It protects the anchor and the steel strand when they rebound after hitting the protective plate, prevents the anchor and the steel strand from being ejected, and improves the safety during prestressed tensioning work.

[0006] The utility model is further configured as follows: a guide rod is bolted to the back of the anti-collision plate, a guide groove used in conjunction with the guide rod is opened on the support plate, and the buffer spring is sleeved on the surface of the guide rod.

[0007] The above technical solution is adopted to guide and limit the anti-collision plate.

[0008] The utility model is further configured as follows: a limiting nut is arranged on the back side of the support plate, and the limiting nut is threadedly connected with the guide rod.

[0009] The guide rod is limited by adopting the above technical solution.

[0010] The utility model is further configured as follows: a first limiting bolt is threadedly connected to the surface of the telescopic rod.

[0011] The above technical solution is adopted to facilitate limiting the length of the telescopic rod.

[0012] The utility model is further configured as follows: a second limiting bolt is connected to the inner thread of the groove on the support plate.

[0013] The above technical solution is adopted to facilitate the fixing of the support plate.

[0014] The utility model is further configured as follows: a third limiting bolt is threadedly connected to the limiting plate, and the number of the third limiting bolts is two.

[0015] The above technical solution is adopted to facilitate the fixing of the limiting plate.

[0016] The utility model is further configured as follows: a rotating disk is fixedly sleeved on one end of the rotating rod away from the anti-collision plate.

[0017] The adoption of the technical solution facilitates the rotation of the rotating rod.

[0018] The utility model is further configured as follows: a rubber pad is bonded to the front side of the anti-collision plate.

[0019] The above technical solution can prevent the anchor or steel strand from being damaged when it pops out, and can reduce the impact force of the anchor or steel strand popping out.

[0020] In summary, the utility model has the following beneficial effects:

[0021] The utility model installs a rubber pad on the protective plate to buffer the impact of the pop-up anchor and the steel strand. A buffer spring is sleeved on the surface of the guide rod passing through the anti-collision plate. When the anchor and the steel strand collide with the anti-collision plate, the anti-collision plate has a buffering force in the direction of the support plate, and the force generated by the collision of the anchor and the steel strand is further unloaded. A sleeve is installed on the front side of the anti-collision plate, and an intercepting rope net is installed between the sleeves to form a circle of protection. The anchor and the steel strand are protected when they rebound after hitting the protective plate, so as to prevent the anchor and the steel strand from being ejected, thereby improving the safety during prestressed tensioning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a partial structural side view of the utility model;

[0024] Figure 3 It is a partial structural back view of the utility model;

[0025] Figure 4 It is a partial structural side sectional view of the utility model;

[0026] Figure 5 It is a schematic diagram of installation and use in the utility model.

[0027] Figure numerals: 1. anti-collision plate; 2. support plate; 3. rotating rod; 4. sleeve; 5. intercepting rope net; 6. buffer spring; 7. trough body; 8. telescopic rod; 9. limit plate; 10. guide rod; 11. guide groove; 12. limit nut; 13. first limit bolt; 14. second limit bolt; 15. third limit bolt; 16. rotating disk; 17. rubber pad. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] Embodiment 1:

[0030] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A convenient protective device for on-site prestressed tensioning includes an anti-collision plate 1, a support plate 2 is arranged on the back of the anti-collision plate 1, a rotating rod 3 is threadedly connected to the front of the anti-collision plate 1, and the number of the rotating rods 3 is four. The surface of the rotating rod 3 is rotatably connected with a sleeve 4 through a bearing, and an interception rope net 5 is installed between the two sleeves 4 through a fixing member. A buffer spring 6 is arranged between the anti-collision plate 1 and the support plate 2, and a groove body 7 is opened on the back of the support plate 2. The interior of the groove body 7 is rotatably connected with a telescopic rod 8 through a rotating shaft. The output end of the telescopic rod 8 is hinged to a limit plate 9 through a hinge, and a rubber spring 6 is installed on the protective plate. The rubber pad 17 can buffer the impact of the pop-up anchor and the steel strand. A buffer spring 6 is sleeved on the surface of the guide rod 10 on the anti-collision plate 1. When the anchor and the steel strand collide with the anti-collision plate 1, the anti-collision plate 1 has a buffering force in the direction of the support plate 2, and further unloads the force generated by the collision between the anchor and the steel strand. A sleeve 4 is installed on the front of the anti-collision plate 1, and an intercepting rope net 5 is installed between the sleeves 4 to form a circle of protection. It can protect the anchor and the steel strand when they rebound after hitting the protective plate, prevent the anchor and the steel strand from being ejected, and improve the safety during prestressed tensioning work.

[0031] refer to Figure 2 , Figure 3 and Figure 5 A guide rod 10 is bolted to the back of the anti-collision plate 1, a guide groove 11 used in conjunction with the guide rod 10 is opened on the support plate 2, and the buffer spring 6 is sleeved on the surface of the guide rod 10. By setting the guide rod 10 and the guide groove 11, the anti-collision plate 1 is guided and limited.

[0032] refer to Figure 2 and Figure 5 A limiting nut 12 is provided on the back of the support plate 2, and the limiting nut 12 is threadedly connected to the guide rod 10. By providing the limiting nut 12, the guide rod 10 is limited.

[0033] refer to Figure 3 The surface of the telescopic rod 8 is threadedly connected with a first limiting bolt 13. By setting the first limiting bolt 13, the length of the telescopic rod 8 can be limited conveniently.

[0034] refer to Figure 2 , Figure 3 and Figure 5 The groove on the support plate 2 is threadedly connected with a second limiting bolt 14. By setting the second limiting bolt 14, the support plate 2 can be easily fixed.

[0035] refer to Figure 3 The limiting plate 9 is threadedly connected with a third limiting bolt 15, and the number of the third limiting bolts 15 is two. By setting the third limiting bolts 15, the limiting plate 9 is conveniently fixed.

[0036] refer to Figure 1 One end of the rotating rod 3 away from the anti-collision plate 1 is fixedly sleeved with a rotating disk 16. By setting the rotating disk 16, the rotating rod 3 can be easily rotated.

[0037] refer to Figure 1 A rubber pad 17 is bonded to the front of the anti-collision plate 1. By providing the rubber pad 17, the anti-collision plate 1 is prevented from being damaged when the anchor or the steel strand pops out, and the impact force of the anchor or the steel strand popping out can be reduced.

[0038] Brief description of the use process: when protection is needed, the rotating rod 3 drives the sleeve 4 to be screwed on the anti-collision plate 1, the support plate 2 is erected and the second limit bolt 14 is used to limit it so that it is fixed in front of the jack, and then the telescopic rod 8 is pulled out from the inside of the slot body 7, and fixed to the ground through the limit plate 9 and the third limit bolt 15, and the support plate 2 is strengthened. The anti-collision plate 1 is inserted into the guide groove 11 of the support plate 2 through the guide rod 10, and is limited by the limit nut 12 to achieve the purpose of overall installation. The overall structure is simple and easy to install. When the anchor and the steel strand are ejected, the rubber pad is installed on the protective plate 17. It can buffer the impact of the pop-up anchor and the steel strand. A buffer spring 6 is sleeved on the surface of the guide rod 10 on the anti-collision plate 1. When the anchor and the steel strand hit the anti-collision plate 1, the anti-collision plate 1 has a buffering force in the direction of the support plate 2, and further unloads the force generated by the impact of the anchor and the steel strand. A sleeve 4 is installed on the front of the anti-collision plate 1, and an intercepting rope net 5 is installed between the sleeves 4 to form a circle of protection. It can protect the anchor and the steel strand from rebounding after hitting the protective plate, prevent the anchor and the steel strand from being ejected, and improve the safety of prestressed tensioning work.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A convenient protective device for on-site prestressing, comprising an anti-collision plate (1), characterized in that: A support plate (2) is arranged on the back of the anti-collision plate (1), a rotating rod (3) is threadedly connected to the front of the anti-collision plate (1), the number of the rotating rods (3) is four, the surface of the rotating rod (3) is rotatably connected to a sleeve (4) via a bearing, an interception rope net (5) is installed between two sleeves (4) via a fixing member, a buffer spring (6) is arranged between the anti-collision plate (1) and the support plate (2), a groove body (7) is opened on the back of the support plate (2), a telescopic rod (8) is rotatably connected to the inside of the groove body (7) via a rotating shaft, and the output end of the telescopic rod (8) is hinged to a limit plate (9) via a hinge.

2. A portable protective device for on-site prestressing according to claim 1, characterized in that: A guide rod (10) is bolted to the back of the anti-collision plate (1), a guide groove (11) for use with the guide rod (10) is provided on the support plate (2), and the buffer spring (6) is sleeved on the surface of the guide rod (10).

3. A portable protective device for on-site prestressing according to claim 2, characterized in that: A limiting nut (12) is provided on the back side of the support plate (2), and the limiting nut (12) is threadedly connected to the guide rod (10).

4. A portable protective device for on-site prestressing according to claim 1, characterized in that: A first limiting bolt (13) is threadedly connected to the surface of the telescopic rod (8).

5. The portable protective device for on-site prestressing according to claim 1, characterized in that: A second limiting bolt (14) is threadedly connected to the groove on the support plate (2).

6. A portable protective device for on-site prestressing according to claim 1, characterized in that: The limiting plate (9) is threadedly connected with a third limiting bolt (15), and the number of the third limiting bolts (15) is two.

7. The portable protective device for on-site prestressing according to claim 1, characterized in that: One end of the rotating rod (3) away from the anti-collision plate (1) is fixedly sleeved with a rotating disk (16).

8. The portable protective device for on-site prestressing according to claim 1, characterized in that: A rubber pad (17) is bonded to the front side of the anti-collision plate (1).

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