Nuclear power station gate jacking device
By designing a nuclear power plant gate tightening device including a rotating shaft, limiting plate and pushing components, the problem that the sluice gate is easily affected by water pressure fluctuations when closed is solved, and when there are impurities on the side wall between the gate and the gate frame, it is ensured that the gate can maintain a good sealing effect and avoid water leakage.
Patent Information
- Application Number
- CN202510439245.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The tightening force of existing nuclear power plant sluice gates when closed is easily affected by water pressure fluctuations, resulting in unstable sealing. When there are hard impurities on the side wall between the gate and the gate frame, the pinch rod is stuck, resulting in poor pinching effect and water leakage may occur.
A nuclear power plant gate tightening device is designed, including two bases and corresponding tightening components. The pinching member is composed of a rotating shaft, a first limiting plate, a pushing assembly, etc. The pushing assembly includes a connecting sleeve, a rack, a first spring and a wedge block. The gear and rack are moved through the rotating shaft. The wedge block is slidably connected to the through hole. The first spring provides additional pushing force to ensure that the wedge block can continue to move and tighten the gate.
This device can maintain a good sealing effect when there are impurities on the side wall between the gate and the gate frame, avoid water leakage, and improve the tightness stability and sealing of the gate.
Smart Images
Figure CN120061298A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of gate tightening devices, and particularly to a gate tightening device for a nuclear power plant. Background Art
[0002] The water gate of a nuclear power plant is an important component of the reactor pool and the spent fuel pool. The water gate is an important component for storing and discharging water. Its sealing performance is very important when it is closed for water storage. Currently, the tightening force required when the water gate is closed is generally the pressure difference between the water on both sides of the water gate for tightening. In this tightening method, pressure fluctuations are likely to occur, the sealing performance is unstable, and water is likely to leak from the side with higher pressure to the side with lower pressure. When the water storage levels on both sides are quite different, it is very easy to push open the water gate, resulting in water leakage and potential safety hazards.
[0003] Currently, a common gate tightening device that is not affected by pressure usually includes two bases. The two bases are respectively arranged on both sides of the gate. A hydraulic cylinder is installed at the upper end of the base. Multiple groups of wedge blocks are provided inside the base. The hydraulic cylinder drives each group of wedge blocks to slide back and forth inside the base. A jacking hole is provided on the side of the base corresponding to the water gate, and a jacking rod is nested inside the jacking hole. The wedge blocks slide back and forth inside the base, driving the corresponding jacking rods to perform a jacking movement. When the water gate is closed in place, the corresponding jacking rods are controlled to perform a jacking movement to tighten the gap between the gate and the gate frame. Although this gate tightening device is not affected by water pressure, when there are relatively hard impurities attached to a region on the side wall between the gate and the gate frame, if a jacking rod gets stuck and cannot continue to jack out, the wedge blocks cannot move either, that is, other jacking rods cannot continue to move towards the gate, resulting in a poor tightening effect on the gate and incomplete sealing, and water leakage may occur. Summary of the Invention
[0004] In order to solve the above technical problems, the present disclosure provides a gate tightening device for a nuclear power plant, which can tighten the gate even when there are relatively hard impurities on the side wall between the gate and the gate frame, making the sealing more stable.
[0005] The present disclosure provides a nuclear power plant gate tightening device, including: two bases respectively arranged on both sides of the gate and two tightening components respectively connected to the two bases. A cavity is provided inside the base, and a plurality of through holes communicating with the cavity are provided on the side wall of the base close to the gate. The tightening component includes: a rotating shaft, a first limiting plate, and a plurality of pushing components. One end of the rotating shaft is rotatably connected to the bottom of the cavity, and the other end of the rotating shaft extends out of the top of the base; the first limiting plate is vertically fixedly connected to the top and bottom of the cavity, and the first limiting plate is located on the side of the rotating shaft close to the through hole; each pushing component includes: a connecting sleeve, a second limiting plate, a rack, a first spring, and a wedge block. The connecting sleeve includes a gear and a plurality of first telescopic rods. The gear is sleeved on the rotating shaft, one ends of the plurality of first telescopic rods are fixedly connected to the inner side wall of the gear, and the other ends of the plurality of first telescopic rods abut against the rotating shaft. The second limiting plate is fixedly connected to the rotating shaft, and the second limiting plate contacts the bottom of the gear. The rack meshes with the gear, one end of the rack vertically penetrates through the first limiting plate, the wedge block is fixedly connected to the rack, and the wedge block is slidably connected to the through hole. One end of the first spring is connected to the first limiting plate, and the other end of the first spring is connected to the wedge block.
[0006] Optionally, the tightening component further includes a second telescopic rod. One end of the second telescopic rod is connected to the side wall of the cavity far from the through hole, and the other end of the second telescopic rod is connected to the end of the rack far from the wedge block.
[0007] Optionally, the tightening component further includes a plurality of protective sleeves. The plurality of protective sleeves correspond to the plurality of pushing components one by one. The protective sleeves are fixedly sleeved on the rotating shaft, and the first telescopic rod abuts against the fixed sleeve.
[0008] Optionally, the connecting sleeve further includes an arc-shaped plate. The outer wall of the arc-shaped plate is fixedly connected to the first telescopic rod, and the inner wall of the arc-shaped plate abuts against the protective sleeve.
[0009] Optionally, the connecting sleeve further includes a second spring. The second spring is sleeved on the first telescopic rod. One end of the second spring is connected to the inner side wall of the gear, and the other end of the second spring is connected to the arc-shaped plate.
[0010] Optionally, a sponge pad is connected to the inner side wall of the arc-shaped plate.
[0011] Optionally, the distance between the two connecting sleeves is 10 cm - 15 cm.
[0012] Optionally, the first telescopic rod is a hydraulic rod.
[0013] Optionally, a turntable is connected to the end of the rotating shaft extending out of the base.
[0014] Optionally, a motor is connected to the end of the rotating shaft extending out of the base, and the motor is located above the turntable.
[0015] The technical solution provided by the embodiments of the present disclosure has the following advantages compared with the prior art:
[0016] A nuclear power plant gate tightening device provided by an embodiment of the present disclosure includes: two bases respectively arranged on both sides of the gate and two tightening components correspondingly connected to the two bases. A cavity is formed inside the base, and a plurality of through holes communicating with the cavity are formed on the side wall of the base close to the gate. The tightening component includes: a rotating shaft, a first limiting plate, and a plurality of pushing components. One end of the rotating shaft is rotatably connected to the bottom of the base, and the other end of the rotating shaft passes through the top of the cavity and extends out of the base; the first limiting plate is vertically and fixedly connected to the top and bottom of the cavity, and the first limiting plate is located on the side of the rotating shaft close to the through hole; the plurality of pushing components correspond to the plurality of through holes one by one. Each pushing component includes: a connecting sleeve, a rack, a first spring, and a wedge block. The connecting sleeve includes a gear and a plurality of first telescopic rods. The gear is sleeved on the rotating shaft, and one ends of the plurality of first telescopic rods are respectively fixedly connected to the inner side wall of the gear, and the other ends of the first telescopic rods abut against the rotating shaft. The rack meshes with the gear, the rack vertically penetrates through the first limiting plate, the wedge block is fixedly connected to one end of the rack passing through the first limiting plate, the wedge block is slidably connected to the through hole, the first spring is sleeved on the rack, one end of the first spring is connected to the side of the first limiting plate close to the through hole, and the other end of the first spring is connected to the wedge block. When the water gate is closed in place, the rotating shaft is controlled to rotate. The rotation of the rotating shaft drives the gear to rotate, the rotation of the gear drives the rack to move towards the through hole direction, and the rack drives the wedge block to tightly hold the gate. When the rotating shaft can no longer rotate, the first telescopic rod is controlled to shorten, so that the gear is no longer fixed to the rotating shaft, and the second limiting plate makes the gear not slide on the rotating shaft. Under the action of the first spring, even if there are impurities on the side wall between the gate and the gate frame, causing one wedge block to be stuck, the other wedge blocks can still move towards the gate and tightly hold the gate, making the tightening effect more obvious and the sealing effect more stable. Description of the Drawings
[0017] Figure 1 is a cross-sectional view of a nuclear power plant gate tightening device provided by an embodiment of the present disclosure when not in use;
[0018] Figure 2 is a cross-sectional view of a nuclear power plant gate tightening device provided by an embodiment of the present disclosure during the use process;
[0019] Figure 3 is a cross-sectional view of a nuclear power plant gate tightening device provided by an embodiment of the present disclosure in a top view state;
[0020] Figure 4 is Figure 3 a partial enlarged schematic view of the structure in area A in
[0021] Description of the Reference Numerals:
[0022] 1. Base; 10. Cavity; 11. Through hole; 2. Tightening member; 20. Rotating shaft; 21. First limiting plate; 22. Pushing assembly; 220. Connecting sleeve; 2200. Gear; 2201. First telescopic rod; 2202. Arc plate; 2203. Second spring; 221. Second limiting plate; 222. Rack; 223. First spring; 224. Wedge block; 23. Second telescopic rod; 24. Protective sleeve; 25. Turntable; 26. Motor. Detailed implementation manner
[0023] The following combines the accompanying drawings to describe a specific implementation manner of the present invention in detail. However, it should be understood that the protection scope of the present invention is not limited by the specific implementation manner.
[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.
[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.
[0026] In addition, in the description of the present invention, "a plurality of" means two or more than two. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as implying or indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.
[0027] At present, a common gate tightening device that is not affected by pressure usually includes two bases, which are respectively arranged on both sides of the gate. A hydraulic cylinder is installed at the upper end of the base. Multiple sets of wedge blocks are arranged inside the base. The hydraulic cylinder drives each set of wedge blocks to slide back and forth inside the base. A jacking hole is provided on the side of the base corresponding to the water gate, and a jacking rod is nested in the jacking hole. The wedge blocks slide back and forth inside the base, driving the corresponding jacking rods to perform a jacking motion. When the water gate is closed in place, the corresponding jacking rods are controlled to perform a jacking motion to tighten the gap between the gate and the gate frame. Although this gate tightening device is not affected by water pressure, when there is a hard impurity attached to a region on the side wall between the gate and the gate frame, if a jacking rod gets stuck and cannot continue to jack out, the wedge block cannot move either, that is, other jacking rods cannot continue to move towards the gate, resulting in a poor tightening effect on the gate, failure to achieve complete sealing, and possible water leakage.
[0028] For this reason, the embodiments of the present disclosure provide a nuclear power plant gate tightening device, which can tighten the gate even when there are hard impurities on the side wall between the gate and the gate frame, making the sealing more stable.
[0029] At least one embodiment of the present invention provides a nuclear power plant gate tightening device, including: two bases respectively arranged on both sides of the gate and two tightening components correspondingly connected to the two bases. A cavity is formed inside the base, and a plurality of through holes communicating with the cavity are provided on the side wall of the base close to the gate. The tightening component includes: a rotating shaft, a first limiting plate, and a plurality of pushing components. One end of the rotating shaft is rotatably connected to the bottom of the base, and the other end of the rotating shaft passes through the top of the cavity and extends out of the base. The first limiting plate is vertically fixed to the top and bottom of the cavity, and the first limiting plate is located on the side of the rotating shaft close to the through hole. The plurality of pushing components correspond to the plurality of through holes one by one. Each pushing component includes: a connecting sleeve, a second limiting plate, a rack, a first spring, and a wedge block. The connecting sleeve includes a gear and a plurality of first telescopic rods. The gear is sleeved on the rotating shaft, and one ends of the plurality of first telescopic rods are respectively fixedly connected to the inner side wall of the gear. The other end of the first telescopic rod abuts against the rotating shaft. The second limiting plate is fixedly connected to the rotating shaft, and the second limiting plate contacts the bottom of the gear. The rack meshes with the gear, the rack vertically passes through the first limiting plate, the wedge block is fixedly connected to the end of the rack passing through the first limiting plate, the wedge block is slidably connected to the through hole, the first spring is sleeved on the rack, one end of the first spring is connected to the side of the first limiting plate close to the through hole, and the other end of the first spring is connected to the wedge block.
[0030] In the nuclear power plant gate tightening device provided by the above embodiments of the present disclosure, when the water gate is closed in place, the control shaft rotates. The rotation of the shaft drives the gear to rotate, and the rotation of the gear drives the rack to move towards the through hole. The rack drives the wedge block to tighten the gate. When the shaft can no longer rotate, the first telescopic rod is controlled to shorten, so that the gear is no longer fixed to the shaft. The second limiting plate prevents the gear from sliding on the shaft. Under the action of the first spring, even if there are impurities on the side wall between the gate and the gate frame, causing one wedge block to be stuck, the other wedge blocks can still move towards the gate and tighten the gate, making the tightening effect more obvious and the sealing effect more stable.
[0031] The following will illustrate the present disclosure through several specific embodiments. To keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and known components may be omitted. When any component of the embodiments of the present disclosure appears in more than one drawing, the component may be denoted by the same reference numeral in each drawing.
[0032] Refer to Figures 1 to 4 , Figure 1 is a cross-sectional view of a nuclear power plant gate tightening device provided by an embodiment of the present disclosure when not in use; Figure 2 is a cross-sectional view of a nuclear power plant gate tightening device provided by an embodiment of the present disclosure during use; Figure 3 is a cross-sectional view of a nuclear power plant gate tightening device provided by an embodiment of the present disclosure in a top view state; Figure 4 is Figure 3 a partial enlarged schematic view of the structure of area A in Figures 1 to 4As shown in the figure, an embodiment of the present disclosure provides a nuclear power plant gate tightening device, including: two bases 1 respectively arranged on both sides of the gate and two tightening components 2 correspondingly connected to the two bases 1. A cavity 10 is formed inside the base 1, and a plurality of through holes 11 communicating with the cavity 10 are formed on the side wall of the base 1 close to the gate. The tightening component 2 includes: a rotating shaft 20, a first limiting plate 21 and a plurality of pushing components 22. One end of the rotating shaft 20 is rotatably connected to the bottom of the base 1, and the other end of the rotating shaft 20 penetrates through the top of the cavity 10 and extends out of the base 1. The first limiting plate 21 is vertically and fixedly connected to the top and bottom of the cavity 10, and the first limiting plate 21 is located on the side of the rotating shaft 20 close to the through hole 11. The plurality of pushing components 22 correspond to the plurality of through holes 11 one by one. Each pushing component 22 includes: a connecting sleeve 220, a rack 222, a first spring 223 and a wedge block 224. The connecting sleeve 220 includes a gear 2200 and a plurality of first telescopic rods 2201. The gear 2200 is sleeved on the rotating shaft 20, and the plurality of first telescopic rods 2201 are respectively fixedly connected to the inner side wall of the gear 2200. The other end of the first telescopic rod 2201 abuts against the rotating shaft 20. The rack 222 meshes with the gear 2200. The rack 222 vertically penetrates through the first limiting plate 21. The wedge block 224 is fixedly connected to one end of the rack 222 passing through the first limiting plate 21. The wedge block 224 is slidably connected to the through hole 11. The first spring 223 is sleeved on the rack 222. One end of the first spring 223 is connected to the side of the first limiting plate 21 close to the through hole 11, and the other end of the first spring 223 is connected to the wedge block. It should be understood that the first telescopic rod 2201 described in this embodiment can be an electric telescopic rod, a hydraulic rod or a cylinder. This embodiment does not make specific limitations, as long as it can control the elongation and can be locked, and can be specifically selected according to the actual situation.
[0033] When the water gate is closed in place, control the rotation of the rotating shaft 20. The rotation of the rotating shaft 20 drives the rotation of the gear 2200. The rotation of the gear 2200 drives the rack 222 to move towards the through hole 11. The rack 222 drives the wedge block 224 to tighten the gate. When the rotating shaft 20 can no longer rotate, control the first telescopic rod 2201 to shorten, so that the gear 2200 is no longer fixed to the rotating shaft 20. The second limiting plate 221 prevents the gear 2200 from sliding on the rotating shaft 20. Under the action of the first spring 223, even if there are impurities on the side wall between the gate and the gate frame, causing one wedge block 224 to be stuck, the other wedge blocks 224 can still move towards the gate and tighten the gate, making the tightening effect more obvious and the sealing effect more stable.
[0034] In the above embodiment, the end of the rack 222 away from the wedge block 224 is suspended, which may cause instability.
[0035] Therefore, an embodiment of the present disclosure provides an improvement method.
[0036] Refer to againFigure 1 and Figure 2 Moreover, the pressing component 2 further includes a second telescopic rod 23. One end of the second telescopic rod 23 is connected to a side wall of the cavity 10 away from the through hole 11, and the other end of the second telescopic rod 23 is connected to one end of the rack 222 away from the wedge block 224.
[0037] In the above embodiment, the first telescopic rod 2201 directly contacts the rotating shaft 20. In order to fix the gear 2200 to the rotating shaft 20, the first telescopic rod 2201 will abut against the rotating shaft 20, and the first telescopic rod 2201 may damage the rotating shaft 20.
[0038] Therefore, the embodiments of the present disclosure provide an improved method.
[0039] Referring again to Figure 3 and Figure 4 Moreover, the pressing component 2 further includes a plurality of protective sleeves 24. The plurality of protective sleeves 24 correspond to the plurality of pushing components 22 one by one. The protective sleeves 24 are fixedly sleeved on the rotating shaft 20, and the first telescopic rod 2201 abuts against the fixed sleeve. The protective sleeves 24 make it difficult for the rotating shaft 20 to be damaged and increase the service life of the device.
[0040] In the above embodiment, since the contact area between the first telescopic rod 2201 and the protective sleeve 24 is small, an unstable situation may occur.
[0041] Therefore, the embodiments of the present disclosure provide an improved method.
[0042] Referring again to Figure 3 and Figure 4 Moreover, the connecting sleeve 220 further includes an arc-shaped plate 2202. The outer wall of the arc-shaped plate 2202 is fixedly connected to the first telescopic rod 2201, and the inner wall of the arc-shaped plate 2202 abuts against the protective sleeve 24. The arc-shaped plate 2202 increases the contact area with the connecting sleeve 220, making the abutment more stable.
[0043] In the above embodiment, if the first telescopic rod 2201 extends at a relatively fast speed when the connecting sleeve 220 is installed, resulting in a large force on the protective sleeve 24, the protective sleeve 24 may be damaged.
[0044] Therefore, the embodiments of the present disclosure provide an improved method.
[0045] Referring again to Figure 3 and Figure 4 Moreover, the connecting sleeve 220 further includes a second spring 2203. The second spring 2203 is sleeved on the first telescopic rod 2201. One end of the second spring 2203 is connected to the inner side wall of the gear 2200, and the other end of the second spring 2203 is connected to the arc-shaped plate 2202. The second spring 2203 can play a buffering role, so that when the telescopic rod extends relatively fast, it can play a buffering role and improve the service life of the device.
[0046] A sponge pad is connected to the inner side wall of the arc-shaped plate 2202. The sponge pad makes the annular plate not easily damaged and makes the connection more stable.
[0047] In the above embodiment, if the distance between the two connecting sleeves 220 is too far, when the gate is relatively large, the tightening effect in some areas may not be obvious.
[0048] For this reason, the embodiments of the present disclosure provide an improved method.
[0049] The distance between the two connecting sleeves 220 is 10 cm - 15 cm.
[0050] The first telescopic rod 2201 is a hydraulic rod. Although an electric telescopic rod can also achieve the purpose, it will inevitably come into contact with water, and the hydraulic rod can improve the service life.
[0051] One end of the rotating shaft 20 extending out of the base 1 is connected to a turntable 25. If the rotating shaft 20 is directly rotated, it is not easy to operate and is quite laborious. The turntable 25 can be rotated more conveniently.
[0052] One end of the rotating shaft 20 extending out of the base 1 is connected to a motor 26, and the motor 26 is located above the turntable 25. Although there is a turntable 25, when the gate is relatively large, a relatively large force is required to make the wedge block 224 tighten the gate. One end of the rotating shaft 20 extending out of the base 1 is connected to a motor 26, and the motor 26 is located above the turntable 25. It can be rotated manually or by using the motor 26.
[0053] The above-disclosed are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.
Claims
1. A nuclear power plant gate tightening device, characterized in that: include: Two bases (1) are respectively arranged on both sides of the gate and two tightening components (2) are respectively connected to the two bases (1), wherein a cavity (10) is provided inside the base (1), and a plurality of through holes (11) communicating with the cavity (10) are provided on the side wall of the base (1) close to the gate, and the tightening components (2) include: A rotating shaft (20), one end of which is rotatably connected to the bottom of the cavity (10), and the other end of which extends out of the top of the base (1); A first limiting plate (21) is vertically fixed to the top and bottom of the cavity (10), and the first limiting plate (21) is located on a side of the rotating shaft (20) close to the through hole (11); A plurality of pushing components (22), each pushing component (22) comprises: a connecting sleeve (220), a second limiting plate (221), a rack (222), a first spring (223) and a wedge block (224), the connecting sleeve (220) comprises a gear (2200) and a plurality of first telescopic rods (2201), the gear (2200) is sleeved on the rotating shaft (20), one end of the plurality of first telescopic rods (2201) is fixedly connected to the inner side wall of the gear (2200), and the other end of the plurality of first telescopic rods (2201) is abutted against the rotating shaft (20), 0), a second limiting plate (221) is fixedly connected to the rotating shaft (20), the second limiting plate (221) contacts the bottom of the gear (2200), the rack (222) is meshed with the gear (2200), one end of the rack (222) vertically penetrates the first limiting plate (21), a wedge block (224) is fixedly connected to the rack (222), the wedge block (224) is slidably connected to the through hole (11), one end of the first spring (223) is connected to the first limiting plate (21), and the other end of the first spring (223) is connected to the wedge block (224).
2. The nuclear power plant gate tightening device according to claim 1, characterized in that: The tightening component (2) further comprises a second telescopic rod (23), one end of the second telescopic rod (23) being connected to a side wall of the cavity (10) away from the through hole (11), and the other end of the second telescopic rod (23) being connected to an end of the rack (222) away from the wedge block (224).
3. The nuclear power plant gate tightening device according to claim 1, characterized in that: The tightening component (2) further comprises a plurality of protective sleeves (24), the plurality of protective sleeves (24) corresponding one to one with the plurality of pushing components (22), the protective sleeves (24) being fixedly sleeved on the rotating shaft (20), and the first telescopic rod (2201) being in contact with the fixed sleeves.
4. The nuclear power plant gate tightening device according to claim 3, characterized in that: The connecting sleeve (220) further comprises an arc-shaped plate (2202), the outer wall of the arc-shaped plate (2202) being fixedly connected to the first telescopic rod (2201), and the inner wall of the arc-shaped plate (2202) being in contact with the protective sleeve (24).
5. The nuclear power plant gate tightening device according to claim 4, characterized in that: The connecting sleeve (220) further comprises a second spring (2203), wherein the second spring (2203) is sleeved on the first telescopic rod (2201), one end of the second spring (2203) is connected to the inner wall of the gear (2200), and the other end of the second spring (2203) is connected to the arc plate (2202).
6. The nuclear power plant gate tightening device according to claim 5, characterized in that: A sponge pad is connected to the inner side wall of the arc-shaped plate (2202).
7. The nuclear power plant gate tightening device according to claim 1, characterized in that: The distance between the two connecting sleeves (220) is 10 cm-15 cm.
8. The nuclear power plant gate tightening device according to claim 1, characterized in that: The first telescopic rod (2201) is a hydraulic rod.
9. The nuclear power plant gate tightening device according to claim 1, characterized in that: One end of the rotating shaft (20) extending out of the base (1) is connected to a rotating disk (25).
10. The nuclear power plant gate tightening device according to claim 9, characterized in that: One end of the rotating shaft (20) extending out of the base (1) is connected to a motor (26), and the motor (26) is located above the rotating disk (25).