CN215798030U

CN215798030U - Foldable chair of spent fuel bridge crane

Info

Publication number: CN215798030U
Application number: CN202122193448.8U
Authority: CN
Inventors: 张吉廷; 陈占胜; 朱贺
Original assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Current assignee: China General Nuclear Power Corp; CGN Power Co Ltd; China Nuclear Power Operation Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-11
Anticipated expiration: 2031-09-10

Abstract

The utility model relates to a foldable chair of a spent fuel bridge crane, which comprises: the bracket is provided with a hook; the seat board is movably connected between the two brackets and is provided with a first position matched with the limiting piece and a second position separated from the first position, when the seat board is positioned at the first position, the seat board is fixed on the limiting piece, and the seat board is perpendicular to the brackets; when the seat board is at the second position, the seat board can rotate relative to the limiting piece, and the seat board is parallel to the bracket. The above-mentioned scheme that this application provided, install on the spent fuel pond crane pavement support through the couple with on the support, then adjust the first position with the bedplate, thereby can make the operating personnel sit and carry out work on the bedplate, effectively reduced operating personnel's fatigue, ensure nuclear fuel operation high risk work safety and stability, when not needing the seat, can adjust the second position with the bedplate simultaneously, so that bedplate and support are parallel to each other, do not influence the normal walking on the pavement.

Description

Foldable chair of spent fuel bridge crane

Technical Field

The utility model relates to the technical field of spent fuel bridge crane equipment, in particular to a foldable seat of a spent fuel bridge crane.

Background

In the process of heavy maintenance loading and unloading and daily spent fuel operation, operators of the spent crane need to stand on the spent crane to operate the spent crane for six hours in each shift, and the operators are easy to cause fatigue operation, influence nuclear fuel operation and have nuclear potential safety hazards. The other type of the fatigue crane is a fatigue crane operated by a person standing. Meanwhile, the spent fuel crane is arranged above the spent fuel pool, so that high requirements on foreign matter prevention are met, and the loose part can fall off the spent fuel pool due to the fact that the seat with the loose part is added blindly, so that the safety of the nuclear fuel assembly is affected.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a foldable seat for a spent fuel bridge crane, aiming at the problem that the existing spent fuel crane lacks a seat.

The utility model provides a foldable chair of a spent fuel bridge crane, which comprises:

the bracket is provided with a hook;

the limiting piece is fixed between the two brackets;

the seat plate is movably connected between the two brackets and is provided with a first position matched with the limiting piece and a second position separated from the first position, when the seat plate is located at the first position, the seat plate is fixed on the limiting piece, and the seat plate is perpendicular to the brackets; when the seat plate is at the second position, the seat plate can rotate relative to the limiting piece, and the seat plate and the bracket are parallel to each other.

Above-mentioned collapsible seat of spent fuel bridge crane, install on the spent fuel pond crane pavement support through the couple on with the support, then adjust the first position with the bedplate, thereby can make the operating personnel sit and carry out work on the bedplate, effectively reduced operating personnel's fatigue, ensure nuclear fuel operation high risk work safety and stability, when not needing the seat, can adjust the second position with the bedplate simultaneously, so that bedplate and support are parallel to each other, do not influence the normal walking on the pavement.

In one embodiment, the limiting member comprises a first positioning plate and a second positioning plate, the first positioning plate and the second positioning plate are vertically connected, the first positioning plate is horizontally fixed between the two brackets, the second positioning plate is vertically fixed between the two brackets, and the second positioning plate is located below the first positioning plate;

when the seat plate is located at the first position, one side of the seat plate, which faces the second positioning plate, is abutted against the second positioning plate, and one side of the seat plate, which faces the second positioning plate, is located below the first positioning plate.

In one embodiment, the positioning device further comprises a connecting shaft, wherein the connecting shaft is fixed between the two brackets and is positioned below the first positioning plate; the bedplate with connecting axle swing joint, just the bedplate can move along the horizontal direction.

In one embodiment, a strip-shaped hole is formed in one side, facing the bracket, of the seat board, and the connecting shaft penetrates through the strip-shaped hole to be connected with the seat board.

In one embodiment, the connecting shaft is in clearance fit with the strip-shaped hole.

In one embodiment, the seat further comprises a first magnetic member and a second magnetic member, wherein the first magnetic member and the second magnetic member are mutually attracted, the first magnetic member is arranged on one side, facing the second positioning plate, of the seat plate, and the second magnetic member is arranged on the second positioning plate.

In one embodiment, the bottom surface of the seat plate is provided with a support rod.

In one embodiment, the length of the support rod is adjustable.

In one embodiment, the lower end of the bracket is provided with a clamping groove.

In one embodiment, the hook is provided with a lock catch.

Drawings

Fig. 1 is a schematic structural view of a foldable chair of a spent fuel bridge crane according to an embodiment of the utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of FIG. 1 with the seat plate removed;

fig. 4 is a schematic diagram of the limiting member in fig. 1.

The figures are labeled as follows:

10. a support; 101. hooking; 102. a card slot; 20. a limiting member; 201. a first positioning plate; 202. a second positioning plate; 30. a seat plate; 301. a strip-shaped hole; 40. and (7) connecting the shafts.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, in an embodiment of the present invention, a foldable chair for a spent fuel bridge crane is provided, which includes: the seat plate comprises brackets 10, a limiting piece 20 and a seat plate 30, wherein the brackets 10 are provided with hooks 101, the limiting piece 20 is fixed between the two brackets 10, the seat plate 30 is movably connected between the two brackets 10, the seat plate 30 has a first position matched with the limiting piece 20 and a second position separated from the first position, when the seat plate 30 is located at the first position, the seat plate 30 is fixed on the limiting piece 20, and the seat plate 30 is perpendicular to the brackets 10; when the seat plate 30 is in the second position, the seat plate 30 can rotate relative to the stopper 20, and the seat plate 30 and the bracket 10 are parallel to each other.

Adopt above-mentioned technical scheme, install on the spent fuel pond crane pavement support through couple 101 with on the support 10, then adjust the first position with bedplate 30, thereby can make the operating personnel sit and carry out work on bedplate 30, effectively reduce operating personnel's fatigue, ensure nuclear fuel operation high risk work safety and stability, when not needing the seat, can adjust the second position with the bedplate simultaneously, so that bedplate and support are parallel to each other, do not influence the normal walking on the pavement.

In some embodiments, as shown in fig. 4 in combination with fig. 2, the limiting member 20 in the present application includes a first positioning plate 201 and a second positioning plate 202, wherein the first positioning plate 201 and the second positioning plate 202 are vertically connected, the first positioning plate 201 is horizontally fixed between the two brackets 10, the second positioning plate 202 is vertically fixed between the two brackets 10, and the second positioning plate 202 is located below the first positioning plate 201; when the seat plate 30 is in the first position, the side of the seat plate 30 facing the second positioning plate 202 abuts against the second positioning plate 202, and the side of the seat plate 30 facing the second positioning plate 202 is located below the first positioning plate 201.

When the staff need sit on bedplate 30, move first locating plate 201 below towards one side of second locating plate 202 through external force with bedplate 30, at this moment, bedplate 30 is towards one side and the butt of second locating plate 202, sit back on bedplate 30 when the staff, bedplate 30 receives decurrent effort, bedplate 30 avoids bedplate 30 downstream by the reaction force that receives first locating plate 201 simultaneously, therefore, the staff just can be stable sit on bedplate 30, when not needing the seat, pull out bedplate 30 through external force, make bedplate 30 and first locating plate 201 separation can.

In some embodiments, in order to facilitate the connection of the seat plate between the two brackets, as shown in fig. 2 and in combination with fig. 3, the foldable seat for a spent fuel bridge crane in the present application further includes a connecting shaft 40, the connecting shaft 40 is fixed between the two brackets 10, and the connecting shaft 40 is located below the first positioning plate 201; the seat plate 30 is movably connected with the connecting shaft 40, and the seat plate 30 can move in the horizontal direction.

Specifically, in the present embodiment, one side of the seat plate 30 facing the brackets 10 is provided with a strip-shaped hole 301, one end of the connecting shaft 40 passes through one of the strip-shaped holes 301 to be connected to one of the brackets 10, the other end of the connecting shaft 40 passes through the other strip-shaped hole 301 to be connected to the other bracket 10, and the structure after installation is as shown in fig. 1, at this time, the seat plate 30 can move in the horizontal direction relative to the connecting shaft 40.

When the staff need sit on seat board 30, move first locating plate 201 below towards one side of second locating plate 202 through external force with bedplate 30, at this moment, bedplate 30 is towards one side and the butt of second locating plate 202, bedplate 30 also connects on connecting axle 40 simultaneously, after the staff sits on bedplate 30, bedplate 30 receives decurrent effort, bedplate 30 receives the reaction force of first locating plate 201 and avoids bedplate 30 downstream simultaneously, therefore, the staff just can be stable sit on bedplate 30, when not needing the seat, pull out bedplate 30 through external force, make bedplate 30 and first locating plate 201 separate, then rotate bedplate 30, make bedplate 30 and support 10 parallel can.

In some embodiments, the connecting shaft 40 is in clearance fit with the strip-shaped hole 301 on the seat plate 30 in order to facilitate the movement of the seat plate 30 relative to the connecting shaft 40.

In some embodiments, the foldable chair for a spent fuel bridge crane further comprises a first magnetic member and a second magnetic member, which are mutually attracted, wherein the first magnetic member is disposed on one side of the seat plate 30 facing the second positioning plate 202, and the second magnetic member is disposed on the second positioning plate 202.

When the side of the seat plate 30 facing the second positioning plate 202 is located below the first positioning plate 201 and the side of the seat plate 30 facing the second positioning plate 202 abuts against the second positioning plate 202, at this time, the first magnetic member on the seat plate 30 and the second magnetic member on the second positioning plate 202 attract each other, so that the stable first position of the seat plate 30 can be ensured.

It should be noted that the structure of the first position of the seat plate, which is ensured by the magnetic member in the embodiment of the present application, is only an example, and in other alternative solutions, other structures may be adopted, for example, a protrusion is provided on a side of the seat plate facing the second positioning plate, and a groove is provided on the second positioning plate, and the protrusion is matched with the groove.

In some embodiments, in order to prevent the seat plate from bending when an external force is applied to the seat plate, a support rod is provided on the bottom surface of the seat plate 30, and the length of the support rod is adjustable.

It should be noted that the structure of the supporting rod provided on the seat plate in the embodiment of the present application is only an example, and in other alternative solutions, other structures may be adopted, for example, a reinforcing rib is provided on the bottom surface of the seat plate. The present application does not specifically limit the specific structure of the seat plate as long as the above-described structure can achieve the object of the present application.

In some embodiments, as shown in fig. 1, the bracket 10 of the present application is provided with a locking groove 102 at the lower end, and the locking groove 102 is opposite to a locking block on the bracket of the moving walkway of the spent fuel pool crane, and after the hook 101 on the bracket 10 is hooked on the moving walkway of the spent fuel pool crane, the locking groove 102 on the bracket 10 is locked into the locking block, so that the stability of the installation of the whole seat can be ensured.

In some embodiments, the hook 101 of the present application is provided with a lock, and after the hook 101 on the support 10 is hung on the crane walkway of the spent fuel pool, the open end of the hook 101 is locked by the lock, so that the whole seat can be stably fixed on the crane walkway of the spent fuel pool.

In summary, the hook 101 on the bracket 10 is installed on the bracket of the walkway of the crane in the spent fuel pool, and then the seat plate 30 is adjusted to the first position, so that the operator can sit on the seat plate 30 to work, the fatigue of the operator is effectively reduced, the safety and stability of the high-risk work of nuclear fuel operation are ensured, and meanwhile, when the seat is not needed, the seat plate can be adjusted to the second position, so that the seat plate and the bracket are parallel to each other, and the normal walking on the walkway is not influenced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A foldable spent fuel bridge crane seat is characterized by comprising:

the support (10), the support (10) is provided with a hook (101);

the limiting piece (20), the limiting piece (20) is fixed between the two brackets (10);

the seat plate (30) is movably connected between the two brackets (10), the seat plate (30) has a first position matched with the limiting piece (20) and a second position separated from the first position, when the seat plate (30) is located at the first position, the seat plate (30) is fixed on the limiting piece (20), and the seat plate (30) is perpendicular to the brackets (10); when the seat plate (30) is at the second position, the seat plate (30) can rotate relative to the limiting piece (20), and the seat plate (30) and the bracket (10) are parallel to each other.

2. The foldable spent fuel bridge crane seat according to claim 1, wherein the limiting member (20) comprises a first positioning plate (201) and a second positioning plate (202), the first positioning plate (201) and the second positioning plate (202) are vertically connected, the first positioning plate (201) is horizontally fixed between the two brackets (10), the second positioning plate (202) is vertically fixed between the two brackets (10), and the second positioning plate (202) is located below the first positioning plate (201);

when the seat plate (30) is in the first position, one side of the seat plate (30) facing the second positioning plate (202) is abutted against the second positioning plate (202), and one side of the seat plate (30) facing the second positioning plate (202) is positioned below the first positioning plate (201).

3. The foldable spent fuel bridge crane seat according to claim 2, further comprising a connecting shaft (40), wherein the connecting shaft (40) is fixed between the two brackets (10), and the connecting shaft (40) is located below the first positioning plate (201); the seat plate (30) is movably connected with the connecting shaft (40), and the seat plate (30) can move along the horizontal direction.

4. The foldable spent fuel bridge crane seat as claimed in claim 3, wherein a strip-shaped hole (301) is formed in one side of the seat plate (30) facing the bracket (10), and the connecting shaft (40) penetrates through the strip-shaped hole (301) to be connected with the seat plate (30).

5. The foldable spent fuel bridge crane seat according to claim 4, wherein the connecting shaft (40) is in clearance fit with the strip-shaped hole (301).

6. The foldable spent fuel bridge chair according to claim 2, further comprising a first magnetic member and a second magnetic member which are mutually attracted, wherein the first magnetic member is arranged on one side of the seat plate (30) facing the second positioning plate (202), and the second magnetic member is arranged on the second positioning plate (202).

7. The foldable spent fuel bridge crane seat as claimed in claim 1, wherein the bottom surface of the seat plate (30) is provided with a support rod.

8. The foldable spent fuel bridge crane seat according to claim 7, wherein the length of the supporting rod is adjustable.

9. The foldable spent fuel bridge crane seat according to claim 1, wherein the lower end of the support (10) is provided with a clamping groove (102).

10. The foldable spent fuel bridge crane seat as claimed in claim 1, wherein the hook (101) is provided with a lock catch.