Elbow bridge for nuclear power

Abstract

The utility model provides an elbow bridge for nuclear power, which belongs to the technical field of cable bridges and comprises a bridge body and a base, a mounting groove is formed in the base, and a cover plate is movably mounted at the top end of the base. The clamping mechanism comprises a mounting plate fixedly mounted on the outer side of the base, inserting grooves are symmetrically formed in the left side and the right side of the top end of the mounting plate, moving grooves are formed in the inner sides of the two inserting grooves, a cavity is formed between the two moving grooves, clamping plates are arranged in the two inserting grooves, and the clamping plates are arranged in the clamping grooves. The opposite faces of the two clamping plates penetrate through the inner walls of the two inserting grooves correspondingly and extend into the two moving grooves to be fixedly connected with moving plates, and moving blocks are fixedly installed at the bottom ends of the two moving plates correspondingly. Through the design of the clamping mechanism and the knob drive, the installation and maintenance process is simplified, the operation efficiency and the safety are improved, and the device is particularly suitable for high-requirement environments such as nuclear power stations and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridges, in particular to a bent cable bridge for nuclear power. Background Art

[0002] In high-demand power facilities such as nuclear power plants, cable trays play a vital role as cable support and protection devices. Cable trays are used not only for laying power cables, but also for laying weak-current cables such as control cables and communication cables. The design of the cable tray needs to take into account load-bearing capacity, structural stability, corrosion resistance, and seismic performance to ensure the long-term and reliable operation of the cable system. Nuclear power plants have a special environment, and their equipment not only has to face high-intensity mechanical stress, but also needs to withstand potential threats such as radiation, corrosion, and fire. In actual applications, due to the complex equipment layout of nuclear power plants, cables need to be laid through curved paths, making the design of curved cable trays particularly critical.

[0003] In the design of traditional curved cable bridges, the bridge cover (cover plate) and the bridge seat (base) are fixed together with bolts. This design ensures the integrity and sealing of the bridge structure and protects the cables from external environmental influences. However, this fixing method is cumbersome during installation and maintenance, especially when the bridge cover needs to be frequently opened or closed to inspect or adjust the cables. The bolts must be removed one by one, which increases the complexity and time cost of the operation. In addition, some cable bridges in nuclear power plants need to be installed at high altitudes or in high locations such as walls and ceilings. In this case, it is more difficult for workers to use bolt fixing devices when working at high altitudes, which not only increases the complexity of installation but also increases safety risks. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is to provide a curved bridge frame which simplifies installation and maintenance, improves construction efficiency and is suitable for the complex environment of a nuclear power plant.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a nuclear power bent bridge, comprising a bridge body, including a base, an interior of the base is provided with a mounting groove, and a cover plate is movably mounted on the top of the base; and

[0008] The clamping mechanism includes a mounting plate fixedly mounted on the outside of the base, slots symmetrically provided on the left and right sides of the top of the mounting plate, movable slots provided on the inner sides of the two slots, a cavity provided between the two movable slots, clamping plates provided inside the two slots, the opposite surfaces of the two clamping plates respectively pass through the inner walls of the two slots and extend to the two movable slots where movable plates are fixedly connected, movable blocks fixedly installed on the bottom ends of the two movable plates, and a driving assembly provided between the two movable blocks.

[0009] As a preferred solution of the bent bridge for nuclear power according to the present invention, the clamping mechanism further comprises plug-ins fixedly mounted on the left and right sides of the bottom end of the cover plate, and both plug-ins are provided with clamping slots therein.

[0010] As a preferred solution of the bent bridge for nuclear power of the utility model, the bottom ends of the two plug-in boards are respectively inserted into the two slots, and the card ends of the two groups of card boards are respectively inserted into the two groups of card slots.

[0011] As a preferred solution of the bent bridge for nuclear power according to the utility model, the driving assembly includes a knob arranged on the outside of the bottom end of the mounting plate, the top end of the knob is fixedly connected to a rotating shaft, the top end of the rotating shaft passes through the bottom wall of the mounting plate and extends to the cavity and is fixedly connected to an active conical tooth, the left and right sides of the active conical tooth are meshed with driven conical teeth, the opposite back surfaces of the two driven conical teeth are fixedly connected to a rotating rod, the opposite back surfaces of the two rotating rods are fixedly connected to a threaded rod, and the other ends of the two threaded rods extend into the two movable grooves respectively.

[0012] As a preferred solution of the bent bridge for nuclear power of the utility model, the two moving blocks are respectively threadedly connected to the outer surfaces of the two threaded rods, and the thread rotation directions of the outer surfaces of the two threaded rods are set to be the same.

[0013] As a preferred solution of the bent bridge for nuclear power described in the utility model, wherein: a first opening is provided at the front end of the installation groove, a second opening is opened on the left side of the rear end of the installation groove, and two groups of the clamping mechanisms are provided, and the two groups of the clamping mechanisms are respectively provided at the first opening and the second opening.

[0014] The beneficial effects of this utility model include: the design of a snap-fit mechanism and drive assembly replaces traditional bolt fixing methods, simplifying the installation and removal process of the cover, making operation more convenient and quick, significantly improving construction and maintenance efficiency, and being particularly suitable for scenarios such as nuclear power plants that require frequent inspection and maintenance. Furthermore, the knob-operated snap-fit mechanism reduces the difficulty of operating at height or in confined spaces, reducing the safety risks associated with complex operations, and overall improving the safety and reliability of the bridge system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a rear cross-sectional view of the first opening of the utility model;

[0018] Figure 3 A three-dimensional diagram of the base of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of the cover plate of the present invention. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0023] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Example

[0025] Reference Figures 1 to 4 This embodiment provides a curved cable tray for nuclear power plants, comprising a cable tray body 100 and a clamping mechanism 200. The cable tray body 100 comprises a base 101 and a cover 102, which is secured to the top of the base 101 via the clamping mechanism 200. The base 101 has an internal mounting groove 101a. When the cover 102 is opened, workers can conveniently install cables into the groove 101a and then close the cover 102 to complete cable installation. This structural design simplifies the cable installation process and improves operational efficiency, making it particularly suitable for demanding working environments such as nuclear power plants.

[0026] Specifically, the snap-in mechanism 200 includes a mounting plate 201 fixedly mounted on the outside of the base 101, and its main function is to provide a fixed base for the snap-in system. Slots 201a are symmetrically provided on the left and right sides of the mounting plate 201. The slots 201a are used to accommodate the plug-in plates 206 so that the cover plate 102 and the base 101 can be accurately docked. A movable groove 201b is provided on the inner side of each slot 201a. The movable groove 201b provides space for the movement of the card plate 202, ensuring that the card plate can move flexibly to achieve the snap-in and unlocking functions. A cavity 201c is provided between the two movable grooves 201b. The cavity 201c is used to accommodate and protect other components in the snap-in structure, while providing sufficient space for the operation of the drive device.

[0027] A card plate 202 is provided inside the slot 201a, and the card plate 202 realizes the locking and unlocking functions by moving. The opposing surfaces of the two card plates 202 pass through the inner walls of the two slots 201a respectively, and extend into the movable groove 201b, and are fixedly connected to the movable plate 203. A movable block 204 is installed at the bottom end of the movable plate 203. The movable block 204 realizes the extension and contraction of the card plate by driving the movement of the card plate 202, thereby controlling the fixing and release of the cover. A driving assembly 205 is provided between the two movable blocks 204, whose function is to drive the movable block and the card plate through external operation (such as a knob or other control device) to realize the locking or release of the cover.

[0028] In addition, the latching mechanism 200 also includes insert plates 206 fixedly mounted on the left and right sides of the bottom end of the cover 102. The insert plates 206 engage with slots in the mounting plate to ensure precise alignment between the cover and the base. Each insert plate 206 has a slot 206a formed within it to accommodate the latch plate 202, thereby firmly securing the cover. The bottom end of the insert plate 206 engages with the slot 201a, and the latching end of the latch plate 202 engages with the slots 206a, ensuring that the cover is securely attached to the base when closed.

[0029] Furthermore, the core function of drive assembly 205 is to control the opening and closing of the latching mechanism through rotation. It includes a knob 205a mounted on the outside of the bottom end of mounting plate 201, providing an operator interface for manual control. The top of knob 205a is fixedly connected via a shaft 205b, which extends through the bottom wall of mounting plate 201 and into cavity 201c. Shaft 205b transmits the knob's rotational motion to the internal gear system.

[0030] The rotating shaft 205b is fixedly connected to the driving conical teeth 205c within the cavity 201c. The driving conical teeth 205c convert the rotating shaft's rotational motion into a transverse gear drive. Both its left and right sides mesh with driven conical teeth 205d, which further transmit the driving conical teeth' rotational motion to the rotating rod 205e. Each driven conical tooth 205d is fixedly connected to a rotating rod 205e on the opposite side of the driven conical teeth 205d. The rotating rod 205e drives the threaded rod 205f through rotation.

[0031] Threaded rods 205f function to control linear motion, with their other ends extending into respective movable slots 201b. Because the outer surfaces of threaded rods 205f are threaded in the same direction, movable block 204 is threadedly connected to the outer surfaces of threaded rods 205f. Rotating the threaded rods allows movable block 204 to move back and forth within movable slots 201b, thereby pushing or retracting retaining plate 202 and engaging or releasing cover plate 102.

[0032] To facilitate installation, the base 101 is provided with a first opening 101b at the front and a second opening 101c at the rear left side. These two openings serve as cable entry and exit, allowing cables to pass smoothly through the bridge. Two sets of snap-fit mechanisms 200 are provided, located at the first opening 101b and the second opening 101c, respectively. This ensures the stability and symmetry of the entire bridge, facilitating cable installation and securement.

[0033] The working principle is as follows: when it is necessary to install or repair the cable, the staff first rotates the knob 205a clockwise, and the knob 205a can drive the active conical gear 205c to rotate through the rotating shaft 205b, and the active conical gear 205c can drive the driven conical gears 205d on both sides to rotate in the opposite direction, and the two driven conical gears 205d can drive the two threaded rods 205f to rotate in the opposite direction through the two rotating rods 205e, and the two threaded rods 205f can drive the two moving blocks 204 to move horizontally toward each other, and the two moving blocks 204 can drive the two groups of card plates 202 to move into the moving groove 201b through the two moving plates 203. When the clamping ends of the two groups of card plates 202 move out of the clamping slot 206a, the limit fixation of the plug plate 206 is released, so that the staff The cover 102 and the base 101 can be removed. At this time, the staff can install the cable into the installation slot 101a or inspect the cable in the installation slot 101a. After the installation or inspection is completed, the staff aligns and inserts the plug plate 206 at the bottom end of the cover 102 into the slot 201a, and then rotates the knob 205a in the opposite direction. With the cooperation of the overall parts of the drive assembly 205, the two moving blocks 204 and the moving plate 203 can drive the two groups of card plates 202 to move horizontally in opposite directions. The carding ends of the two groups of card plates 202 can be reinserted into the slot 201a and inserted into the card slot 206a of the plug plate 206, completing the limit fixation of the plug plate 206, and realizing the installation of the cover 102 and the base 101.

[0034] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0036] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A bent bridge for nuclear power, characterized by: include, The bridge frame body (100) comprises a base (101), a mounting groove (101a) is provided inside the base (101), and a cover plate (102) is movably mounted on the top of the base (101); and The clamping mechanism (200) comprises a mounting plate (201) fixedly mounted on the outside of the base (101), slots (201a) symmetrically provided on the left and right sides of the top of the mounting plate (201), movable slots (201b) provided on the inner sides of the two slots (201a), a cavity (201c) provided between the two movable slots (201b), a clamping plate (202) provided inside the two slots (201a), opposite surfaces of the two clamping plates (202) respectively passing through the inner walls of the two slots (201a) and extending into the two movable slots (201b) to be fixedly connected with a movable plate (203), movable blocks (204) fixedly provided at the bottom ends of the two movable plates (203), and a driving assembly (205) provided between the two movable blocks (204).

2. The bent bridge for nuclear power according to claim 1, characterized in that: The clamping mechanism (200) further comprises plugging plates (206) fixedly mounted on the left and right sides of the bottom end of the cover plate (102), and a clamping slot (206a) is provided inside each of the two plugging plates (206).

3. The bent bridge for nuclear power according to claim 2, characterized in that: The bottom ends of the two inserting plates (206) are respectively inserted into the two slots (201a), and the card-connecting ends of the two groups of card plates (202) are respectively inserted into the two groups of card slots (206a).

4. The bent bridge for nuclear power according to claim 3, characterized in that: The driving assembly (205) comprises a knob (205a) arranged outside the bottom end of the mounting plate (201); the top end of the knob (205a) is fixedly connected to a rotating shaft (205b); the top end of the rotating shaft (205b) passes through the bottom wall of the mounting plate (201) and extends into the cavity (201c) to be fixedly connected to an active conical tooth (205c); the left and right sides of the active conical tooth (205c) are meshedly connected to driven conical teeth (205d); the opposite back surfaces of the two driven conical teeth (205d) are fixedly connected to a rotating rod (205e); the opposite back surfaces of the two rotating rods (205e) are fixedly connected to a threaded rod (205f); and the other ends of the two threaded rods (205f) extend into the two movable slots (201b) respectively.

5. The bent bridge for nuclear power according to claim 4, characterized in that: The two moving blocks (204) are respectively threadedly connected to the outer surfaces of the two threaded rods (205f), and the thread rotation directions of the outer surfaces of the two threaded rods (205f) are set to be the same.

6. The bent bridge for nuclear power according to claim 5, characterized in that: The front end of the installation groove (101a) is provided with a first opening (101b), and the left side of the rear end of the installation groove (101a) is provided with a second opening (101c). Two groups of the clamping mechanisms (200) are provided, and the two groups of the clamping mechanisms (200) are respectively provided at the first opening (101b) and the second opening (101c).

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