CN217129170U - Pre-tensioning device for installation of fence protection network of nuclear power plant - Google Patents
Pre-tensioning device for installation of fence protection network of nuclear power plant Download PDFInfo
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- CN217129170U CN217129170U CN202220442624.9U CN202220442624U CN217129170U CN 217129170 U CN217129170 U CN 217129170U CN 202220442624 U CN202220442624 U CN 202220442624U CN 217129170 U CN217129170 U CN 217129170U
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Abstract
The utility model relates to an operation instrument technical field specifically is a device is pretension in installation of nuclear power plant's rail protection network, and mainly used carries out the tensioning to the fence net in advance, makes the fence net can effectively laminate with the fence post, easy to assemble. The utility model comprises a fixed structure connected with a net sheet and a tensioning structure connected with a fence post, wherein the tensioning structure is connected with the fixed structure, and the length of the tensioning structure is telescopic; the pre-tensioning devices are arranged at two ends of the net piece and used for tensioning the two ends of the net piece towards the direction of the fence upright posts at two sides. The utility model discloses in pull open the net piece both sides towards the stand direction of both sides through pretension device, until the net piece is pulled to expansion completely, carry out again on next step with the operation that net piece and fence post are fixed, do not need more manpower to pull the fastening with manpower at both ends and fix, reduced the human consumption, also improved efficiency simultaneously.
Description
Technical Field
The utility model relates to an operation instrument technical field specifically is a device is pretension in installation of nuclear power plant's rail protection network, and mainly used carries out the tensioning to the fence net in advance, makes the fence net can effectively laminate with the fence post, easy to assemble.
Background
The patent with publication number CN206283991U discloses a fence net, which comprises a net body, wherein two sides of the net body are woven and fixed on supporting rods; the sleeve comprises a sleeve body, a support rod is arranged in the sleeve body, a long hole parallel to the axis of the sleeve body is formed in the side wall of the sleeve body, the width of the long hole is smaller than the diameter of the support rod, the lower end of the sleeve body is fixedly connected with a base, and the upper end of the sleeve body is fixedly connected with a pull ring; the middle part of the net body is provided with a tensioning rod which is a telescopic rod.
Weave the both sides of dictyosome in this patent and fix on the bracing piece for the dictyosome links into an integrated entity with making the bracing piece, can not dismantle, makes the area of whole fence net great, has caused inconvenience in the transportation. At nuclear power plant factory rail protection network installation during operation, finished product rail net often is packed the lapping and transports the incoming line, need spread out the rail net during installation and get up the laminating immediately on the rail post, because the lapping is packed for a long time to the net piece, spread out the back net piece and receive the automatic lapping of inertia influence meeting, need arrange a plurality of personnel and press simultaneously, arrange personnel to hold the net piece backward at net piece both ends respectively and pull the messenger net piece tensioning hard simultaneously, the net piece just can keep the shape laminating on the rail post, it is very inconvenient to be under construction, and consume more manpower, very big influence efficiency of construction. Therefore, it is necessary to provide a pre-tensioning device for installing a nuclear power plant fence protection net aiming at the installation of the fence net.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device is in advance strained in installation of nuclear power plant's rail protection network, mainly used carries out the tensioning to the fence net in advance, makes the fence net can be effectively with the laminating of fence post, easy to assemble.
In order to solve the technical problems, the application provides a pre-tensioning device for installing a nuclear power plant fence protection net, which comprises a fixing structure connected with a net piece and a tensioning structure connected with a fence post, wherein the tensioning structure is connected with the fixing structure, and the length of the tensioning structure is telescopic; the pre-tensioning devices are arranged at two ends of the net piece and used for tensioning the two ends of the net piece towards the direction of the fence upright posts at two sides.
In this application, will net piece both ends respectively with the fence post connection through pretension device, wherein, be connected with the net piece through fixed knot structure, through taut structure and fence post connection, and taut structure is connected with fixed knot structure, under taut structure telescopic characteristics, only need to net the taut structure of piece both sides towards the direction crimple of both sides fence post, taut structure overall length shortens promptly, the both sides of the net piece of pulling connection on fixed knot structure pull open towards the stand direction of both sides, until the net piece is pulled to expansion completely, carry out again and will net the piece and the fixed operation of fence post on next step, it is fixed to do not need more manpower to pull the fastening at both ends with manpower, manpower consumption has been reduced, simultaneously efficiency has also been improved.
Preferably, the fixing structure comprises at least two first connecting pieces arranged towards the direction of the net piece, and the two first connecting pieces are respectively connected with the upper end and the lower end of the side edge of the net piece.
Preferably, the fixing structure further comprises a fixing member for fixing the plurality of first connecting members, and the fixing member is fixedly connected with the first connecting members.
Preferably, the fixing structure further comprises a second connecting piece connected with the tensioning structure, and the second connecting piece is connected to one end, far away from the first connecting piece, of the fixing piece.
Preferably, one end of the tensioning structure is connected with the fence post, and the other end of the tensioning structure is connected with the second connecting piece of the fixing structure through a third connecting piece.
Preferably, the first connecting piece, the second connecting piece and the third connecting piece are all in a hook shape.
Preferably, the second connecting piece is connected with the third connecting piece through a nylon rope.
Preferably, the fixing part is of an isosceles triangle structure, the base of the fixing part is connected with the plurality of first connecting pieces, and the vertex opposite to the base is connected with the second connecting piece.
Preferably, the tensioning structure is a chain block.
Preferably, the tensioning structure is a lifting rod. .
The utility model discloses has following technological effect:
1. the fixed knot constructs the side through first connecting piece connection net piece, and first connecting structure is equipped with two at least, is connected with the upper and lower both ends of net piece respectively, ensures to become the state of expansion from top to bottom when pulling open net piece both sides, increases the stress point of net piece simultaneously, and the pulling force that receives is divided equally, avoids causing the damage because of the net piece certain position atress is too big.
2. Through a plurality of first connecting pieces of mounting fixed connection for relative position between a plurality of first connecting pieces is fixed, has ensured the take-up to both sides about the net piece, prevents to cause the circumstances such as buckling because of a plurality of mountings are unstable.
3. The second connecting piece is arranged on the fixed structure, the third connecting piece is arranged on the tensioning structure, and the fixed structure is connected with the tensioning structure in a mode of connecting the second connecting piece with the third connecting piece, so that the connecting mode is simple.
4. The first connecting piece, the second connecting piece and the third connecting piece are all in a hook shape, so that the first connecting piece only needs to hook the edge of the net piece by utilizing the special shape of the hook, the mode of connecting the net piece is simple and quick, and quick connection and disassembly can be realized. Likewise, the connection of the second and third coupling elements in the shape of a hook is also extremely quick and simple.
5. The second connecting piece is connected with the third connecting piece through the nylon rope, the two ends of the nylon rope can be directly sleeved on the first connecting piece and the second connecting piece in the shape of the hook, and the nylon rope is matched with the overall tensioning structure for use, so that the requirement for the length of the tensioning structure is reduced. And the nylon rope has low manufacturing cost, light weight and strong endurance.
6. The fixing piece is of an isosceles triangle structure, the triangle structure is good in stability, the bottom edge of the fixing piece is connected with the first connecting pieces, the top point opposite to the bottom edge is connected with the second connecting piece, the tensioning structure is connected with the fixing piece, when the tensioning structure is tightened towards the direction of the fence column, the top point end opposite to the bottom edge on the fixing structure is pulled, the force applied to the top point end is uniformly divided by the whole triangular fixing structure, the whole body is pulled by one time, and the fixing piece is not prone to being pulled and deformed.
7. The tensioning structure is a chain block, and the chain block has small tension, small volume, light weight and durability.
Drawings
Figure 1 construction of a pretensioning device.
Wherein, 1-a fixed structure; 1-1-a first connector; 1-2-a fixture; 1-3-a second connector; 2-a tensioning structure; 2-1-a third connector; 3-nylon ropes; 4-fence post.
Detailed Description
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless otherwise defined, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that the conventional terms should be interpreted as having a meaning that is consistent with their meaning in the relevant art and this disclosure. This disclosure is to be considered as an example of the invention and is not intended to limit the invention to the particular embodiments.
Example one
The embodiment provides a pre-tensioning device for installing a nuclear power plant fence protection net, which comprises a fixed structure 1 connected with a net piece and a tensioning structure 2 connected with a fence post 4, wherein the tensioning structure 2 is connected with the fixed structure 1, and the length of the tensioning structure 2 is telescopic; the pre-tensioning devices are arranged at two ends of the net piece and used for tensioning the two ends of the net piece towards the direction of the fence upright posts at two sides.
In the embodiment, when the pre-tensioning device is used for tensioning the net piece, the net piece which is in a roll shape is manually unfolded, the net piece is in a state of incomplete tensioning at the moment, the two pre-tensioning devices are arranged and are respectively arranged on two sides of the expanded net piece, when the device is used, the tensioning structures 2 of the pre-tensioning devices on two sides of the net piece are fixed on the fence posts 4 near the corresponding sides of the net piece, the fixed structures 1 are connected to the side edges of the net piece, after the pre-tensioning devices are connected well according to the above, the tensioning structures 2 are operated to shorten the length of the tensioning structures 2, the fixed structures 1 are connected with the side edges of the net piece and are tensioned towards two sides gradually until the net piece is in a tensioning state, and then the net piece is attached to the fence posts 4 to perform a next-step installation procedure.
The fixing structure 1 comprises first connecting pieces 1-1 arranged towards the direction of the net piece, and at least two first connecting pieces 1-1 are arranged and are respectively connected with the upper end and the lower end of the side edge of the net piece. The first connecting pieces 1-1 are at least two and are respectively connected to the upper end and the lower end of the side edge of the net piece, namely the positions of the upper end and the lower end of the net piece are fixed, and the situation that the net piece is bent in the vertical direction is prevented. Meanwhile, in order to avoid the position change between the first connecting piece 1-1 and the second connecting piece 1-3, the fixing structure 1 further comprises a fixing piece 1-2 for fixing a plurality of first connecting pieces 1-1, and the fixing piece 1-2 is fixedly connected with the first connecting piece 1-1. Namely, the positions of the first connecting pieces 1-1 are fixed by connecting the first connecting pieces 1-1 to the fixed structure 1, in order to adapt to the width of the net sheet, the first connecting pieces 1-1 and the fixed structure 1 can be connected in a detachable mode, or the first connecting pieces 1-1 are arranged, and the first connecting pieces 1-1 in proper positions are selected to be connected with the net sheet according to the height of the net sheet. The increase of the number of the first connecting pieces 1-1 can improve the uniformity of the stress on the side edge of the net sheet and prevent the net sheet from being pulled and deformed.
In this embodiment, the fixing structure 1 further includes a second connecting member 1-3 for connecting with the tensioning structure 2, and the second connecting member 1-3 is connected to one end of the fixing member 1-2 far from the first connecting member 1-1. One end of the tensioning structure 2 is connected with the fence post 4, and the other end of the tensioning structure is connected with the second connecting piece 1-3 of the fixed structure 1 through a third connecting piece 2-1. The second connecting piece 1-3 and the third connecting piece 2-1 can be directly connected or connected through other structures. In addition, the first connecting piece 1-1, the second connecting piece 1-3 and the third connecting piece 2-1 in the embodiment are all hook-shaped. The hook-shaped first connecting piece 1-1 can be directly hooked at the gap of the side edge of the net piece, so that the connection between the fixing structure 1 and the net piece is very simple, and the first connecting piece 1-1 only needs to be taken down from the net piece during disassembly. Wherein, the first connecting piece 1-1 can rotate and move on the fixing piece 1-2, which is convenient for connecting with the net sheet. Similarly, when the second connecting piece 1-3 is directly connected with the third connecting piece 2-1, the two hooks are hooked with each other, so that the connection between the tensioning structure 2 and the fixed structure 1 can be realized, and the disassembly is convenient. In this embodiment, the second connecting piece 1-3 is connected to the third connecting piece 2-1 through a nylon rope 3. The length of tensioning structure 2 is generally limited, and when the clearance of rail post 4 is great, the length of tensioning structure 2 does not necessarily satisfy with tensioning structure 2 and rail post 4 fixed, is connected through nylon rope 3 between second connecting piece 1-3 and the third connecting piece 2-1, can suitably increase the length of whole pretension device, and simultaneously, the cost of nylon rope 3 is less than the metal, and the quality is strong, portable. During connection, the nylon rope 3 is tied into a lantern ring form, and two ends of the nylon rope are respectively sleeved on the second connecting piece 1-3 and the third connecting piece 2-1 in the shape of a hook.
In this embodiment, the fixing member 1-2 is an isosceles triangle structure, the bottom side of which is connected to the plurality of first connecting members 1-1, and the vertex of which away from the bottom side is connected to the second connecting member 1-3. From the analysis of the stress angle, when the tensioning structure 2 is tensioned towards the direction of the fence post 4, the vertex of the fixed structure 1 far away from the bottom edge is firstly tensioned, and the triangular structure is strong in stability and not easy to deform, and meanwhile, because two waists corresponding to the vertex are equal, the tension on the upper end and the lower end of the fixed structure 1 is also the same, so that the mesh sheets face up and down simultaneously; the two sides are pulled apart, so that the tensioning degrees of the upper end and the lower end of the net are consistent. In this embodiment, the fixing structure 1 is a triangular frame structure, and in order to enhance the strength of the fixing structure 1, a plurality of reinforcing ribs are disposed between the bottom edge and the two side edges, so as to further prevent the fixing structure 1 from deforming.
In this embodiment, the tensioning structure 2 is a chain block. When the chain block is used, the large pulling force on the net piece can be realized only by using small hand force, the carrying is convenient, and the third connecting piece 2-1 in the shape of a hook is arranged on the chain block, so that the use is convenient.
Example two
In contrast to the first embodiment, the tensioning structure 2 is a lifting rod in this embodiment. The lifting rod is a structure which is commonly used, and can adopt an automatic lifting rod, thereby being more labor-saving.
Although embodiments of the present invention have been described, various changes or modifications may be made by one of ordinary skill in the art within the scope of the appended claims.
Claims (5)
1. The utility model provides a pre-tension device is installed to nuclear power plant's rail protection network which characterized in that:
the tensioning structure is connected with the fixed structure, and the length of the tensioning structure is telescopic;
the pre-tensioning devices are arranged at the two ends of the net sheet and are used for tensioning the two ends of the net sheet towards the direction of the fence upright columns at the two sides;
the fixing structure comprises at least two first connecting pieces arranged towards the direction of the net piece, and the at least two first connecting pieces are respectively connected with the upper end and the lower end of the side edge of the net piece;
the fixing structure further comprises a fixing piece for fixing a plurality of first connecting pieces, and the fixing piece is fixedly connected with the first connecting pieces;
the fixing structure further comprises a second connecting piece connected with the tensioning structure, and the second connecting piece is connected to one end, far away from the first connecting piece, of the fixing piece;
the tensioning structure is a chain block or a lifting rod.
2. The pre-tensioning device for installation of the nuclear power plant fence protection net according to claim 1, is characterized in that:
one end of the tensioning structure is connected with the fence column, and the other end of the tensioning structure is connected with the second connecting piece of the fixing structure through a third connecting piece.
3. The pre-tensioning device for installation of the nuclear power plant fence protection net according to claim 2, is characterized in that:
the first connecting piece, the second connecting piece and the third connecting piece are all in a hook shape.
4. The pre-tensioning device for installation of the nuclear power plant fence protection net according to claim 3, is characterized in that:
the second connecting piece is connected with the third connecting piece through a nylon rope.
5. The pre-tensioning device for installation of the nuclear power plant fence protection net according to claim 1, is characterized in that:
the fixing piece is of an isosceles triangle structure, the bottom edge of the fixing piece is connected with the first connecting pieces, and the vertex opposite to the bottom edge is connected with the second connecting pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220442624.9U CN217129170U (en) | 2022-03-03 | 2022-03-03 | Pre-tensioning device for installation of fence protection network of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220442624.9U CN217129170U (en) | 2022-03-03 | 2022-03-03 | Pre-tensioning device for installation of fence protection network of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129170U true CN217129170U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220442624.9U Active CN217129170U (en) | 2022-03-03 | 2022-03-03 | Pre-tensioning device for installation of fence protection network of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217129170U (en) |
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2022
- 2022-03-03 CN CN202220442624.9U patent/CN217129170U/en active Active
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