Connecting mechanism and cabin manhole ventilation device

Abstract

The utility model relates to the technical field of nuclear power, in particular to a connecting mechanism, a cabin manhole ventilation device and a mounting component thereof, which comprise a mounting frame, a connecting frame is movably mounted at the bottom of the mounting frame, a locking piece is annularly arranged on the mounting frame, a fixing piece is arranged on the outer side of the locking piece, and a positioning piece is annularly arranged on the mounting frame. The mounting rack has the beneficial effects that the mounting rack and the connecting rack are effectively mounted together through the matching between the locking piece and the positioning piece, and the mounted whole body can be effectively fixed inside a cabin manhole, so that the subsequent ventilation connecting pipe is connected with an air pipe inside and outside a cabin; on the premise that cabin sealing is guaranteed, air pipes inside and outside the cabin are connected. Meanwhile, gas in the cabin is prevented from leaking out of the cabin, temporary plugging facilities do not need to be additionally erected, operation is easy, convenient and rapid, and the field work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power technology field, especially a connecting mechanism and cabin manhole ventilation device. BACKGROUND

[0002] The nuclear island of high temperature gas cooled reactor nuclear power station demonstration project is provided with reactor chamber and steam generator chamber, for the convenience of overhauling and personnel access, the chamber is provided with manhole door. In the overhauling state, the chamber needs to be ventilated. In addition, in order to reduce the air temperature in the chamber, the air in the chamber needs to be extracted to the outside of the chamber for cooling, and at the same time, ventilation is needed to the chamber. The air inlet pipe and the air outlet pipe both pass through the manhole door of the chamber. In order to prevent the gas in the chamber from leaking from the manhole, the chamber manhole door is opened, and the temporary inlet and outlet air pipes for overhauling are installed at the position of the manhole door. In some overhauling states, the ventilation pipe passes through the manhole door of the chamber, and at the same time, the leakage of the gas in the chamber directly from the manhole needs to be reduced. Therefore, temporary plugging needs to be carried out on the manhole of the chamber.

[0003] Temporary plugging facilities need to be set up every time the chamber is overhauled, and after use, the temporary plugging facilities need to be removed. Since the nuclear island of the nuclear power station needs to consider the radioactive protection measures, the temporary plugging facilities are time-consuming and laborious to set up, which is not conducive to improving the work efficiency. Therefore, a connecting mechanism and a cabin manhole ventilation device are provided. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problem that temporary plugging facilities need to be set up in the existing technology when the chamber is overhauled and ventilated, the utility model is provided.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: the installation assembly comprises an installation frame, a connecting frame movably installed at the bottom of the installation frame, a locking piece annularly arranged on the installation frame, a fixing piece arranged on the outer side of the locking piece, and a positioning piece annularly arranged on the installation frame.

[0007] As a preferred scheme of the connecting mechanism of the utility model, the bottom of the connecting frame is provided with an air bag, the inner part of the connecting frame is respectively provided with a first reinforcing rib and a second reinforcing rib, the first reinforcing rib is arranged in the shape of a cross, and the second reinforcing rib is arranged in the shape of a triangle.

[0008] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: first reinforcing rib and second reinforcing rib between respectively being provided with first air pipe and second air pipe, first air pipe is provided with a plurality, and second air pipe is provided with two symmetrically.

[0009] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: the outer wall of first air pipe and second air pipe is provided with sealing body, and the outer wall of sealing body is connected to the inner wall of first reinforcing rib, second reinforcing rib and connecting frame respectively.

[0010] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: the locking member includes annularly opened first limiting hole and second limiting hole in the top of mounting frame and connecting frame, the first limiting hole penetrates the mounting frame, and the inner wall of second limiting hole is symmetrically provided with adjusting groove, and the adjusting groove is provided with half-arc shape.

[0011] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: the locking member further includes connecting rod slidably installed in the first limiting hole, and the top of connecting rod is welded with handle, and the outer wall of handle is provided with anti-skid line.

[0012] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: the bottom of connecting rod is welded with connecting block, the bottom of connecting block is symmetrically provided with placing groove, the inside of placing groove is provided with first spring, one end of first spring is provided with positioning block, the positioning block is movably installed in the placing groove, and the positioning block is slidably installed in the second limiting hole.

[0013] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: the fixing member includes first fixing hole and second fixing hole outside the connecting rod, the second fixing hole is higher than the first fixing hole, the mounting frame is fixedly installed with fixed block, the outer side of fixed block is welded with sleeve, the inside of sleeve is provided with second spring, one end of second spring is provided with fixed rod, and the fixed rod is movably installed in the first fixing hole.

[0014] As a preferred scheme of the utility model discloses a connecting mechanism, wherein: the positioning member includes positioning plate annularly welded in the top of mounting frame, the outer wall of positioning plate is provided with positioning hole, the inside of positioning hole is threadedly connected with bolt, and the bolt penetrates the positioning plate.

[0015] The utility model discloses a connecting mechanism beneficial effect: through the cooperation between locking piece and positioning piece, effectively install the mounting frame with the connecting frame together, and can effectively fix the whole after installation in the inside of the cabin manhole, ensure that the follow-up ventilation connection pipe connects the air pipe of cabin inside and outside, realizes the connection of air pipe of cabin inside and outside under the premise of guaranteeing the cabin sealing. Simultaneously avoided the gas leakage in the cabin to the cabin outside, and need not to set up temporary plugging facilities additionally, simple, convenient and fast operation improves the on -the -spot work efficiency.

[0016] In view of in actual use process, still exist cabin manhole inside and not set up the component of cooperation ventilation device, lead to the connecting device to be unable to fix in the cabin manhole inside, influenced the cabin manhole inside ventilation problem.

[0017] To solve the above technical problem, the utility model discloses the following technical scheme still provides: a cabin manhole ventilation device including operating assembly, including the body, the body sets up in the outside of the mounting frame, the inside of the body is provided with the connecting ring, the top of the body is hinged with the cover plate.

[0018] The cabin manhole ventilation device of the utility model has the beneficial effect that: the bottom of the connecting frame is supported by the connecting ring, avoiding the connecting frame and the mounting frame from sliding or falling down due to their own gravity when being placed vertically in the cabin manhole, thereby ensuring that the connecting device can be stably installed in the cabin manhole, and the sealing of the cabin manhole is ensured before installing the connecting device, avoiding gas leakage. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor. Among them:

[0020] Figure 1 It is the overall structure schematic diagram of a connecting mechanism.

[0021] Figure 2 It is the overall sectional view of a connecting mechanism.

[0022] Figure 3 It is the overall exploded view of a connecting mechanism.

[0023] Figure 4 It is the bottom view of a connecting mechanism.

[0024] Figure 5 It is the overall structure schematic diagram of a connecting frame.

[0025] Figure 6 It is a schematic diagram of the overall structure of a locking member.

[0026] Figure 7 It is a schematic diagram of the overall structure of a cabin manhole ventilation device.

[0027] Figure 8 It is a schematic diagram of the overall structure of a connecting mechanism and a cabin manhole ventilation device. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be practiced in other ways different from the description, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0030] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor does it mean an embodiment that is separate or selectively excluded from other embodiments.

[0031] Embodiment 1

[0032] Reference Figures 1-3 For the first embodiment of the present application, the embodiment provides a connecting mechanism,

[0033] Specifically, the mounting assembly 100 comprises a mounting frame 101, and a connecting frame 102 movably mounted at the bottom of the mounting frame 101. Through the cooperation between the mounting frame 101 and the connecting frame 102, the cabin manhole can be effectively ventilated. The mounting frame 101 is annularly provided with a locking member 103. Through the arrangement of the locking member 103, the mounting frame 101 can be effectively connected with the connecting frame 102. The outer side of the locking member 103 is provided with a fixing member 104. Through the arrangement of the fixing member 104, targeted limiting and fixing can be performed according to the two conditions of the locking member 103, so as to avoid the phenomenon of shaking and displacement after the locking member 103 is installed, and ensure the connection effect between the mounting frame 101 and the connecting frame 102. The mounting frame 101 is annularly provided with a positioning member 105. Through the arrangement of the positioning member 105, the connection between the mounting frame 101 and the body 201 is more stable, and at the same time, it is ensured that the mounting frame 101 is installed inside the cabin manhole, and the smooth progress of the later ventilation work is ensured.

[0034] Preferably, the bottom of the connecting frame 102 is provided with an air bag 102a. Through the arrangement of the air bag 102a, the connecting frame 102 is more closely connected with the connecting ring inside the cabin manhole, which ensures that the gas inside the cabin manhole can be effectively discharged through the breather connector, and ensures the sealing between the connecting frame 102 and the connecting ring inside the cabin manhole. The inside of the connecting frame 102 is respectively provided with a first reinforcing rib 102b and a second reinforcing rib 102e. The first reinforcing rib 102b is arranged in a cross shape, and the second reinforcing rib 102e is arranged in an H shape. Through the arrangement of the first reinforcing rib 102b and the second reinforcing rib 102e, the strength of the connecting frame 102 is increased, so that the subsequent connecting pipe and the breather connector are more stable and firm.

[0035] Further, the first reinforcing rib 102b and the second reinforcing rib 102e are respectively provided with a first breather connector 102c and a second breather connector 102f. The first breather connector 102c is provided with a plurality of breather connectors, and the second breather connector 102f is symmetrically provided with two breather connectors. Through the arrangement of the first breather connector 102c and the second breather connector 102f, appropriate breather connectors can be selected according to actual use conditions, which is convenient for ventilation and air exchange treatment work of different models of cabin manholes.

[0036] Further, the outer wall of the first breather connector 102c and the second breather connector 102f is provided with a sealing body 102d. The outer wall of the sealing body 102d is connected with the inner wall of the first reinforcing rib 102b, the second reinforcing rib 102e and the connecting frame 102 respectively. Through the arrangement of the sealing body 102d, the gap between the reinforcing rib and the breather connector can be effectively filled, so that all positions on the connecting frame 102 except the breather connector are sealed, thereby ensuring the ventilation treatment of the cabin in the later stage, avoiding gas leakage, and being more safe to operate.

[0037] In use, first, according to actual use conditions, the first reinforcing rib 102b or the second reinforcing rib 102e is selected according to different models of cabins. Then, the mounting frame 101 and the connecting frame 102 are connected together through the locking piece 103. Then, the mounting frame 101 is mounted in the cabin manhole through the mounting slot 101a. Finally, the mounting frame 101 and the inner wall of the cabin are connected through the positioning piece 105, so as to realize the operation of mounting the whole device on the cabin. The workers can connect the air inlet pipe and the air outlet pipe to the ventilation port on the connecting frame 102 according to the needs, so as to complete the ventilation treatment of the cabin, realize the connection of the air pipes inside and outside the cabin under the premise of ensuring the sealing of the cabin, and avoid the leakage of the gas in the cabin to the outside of the cabin. In addition, temporary plugging facilities are not necessary, which is simple, convenient and efficient, and improves the on-site work efficiency.

[0038] Example 2

[0039] Referring to Figures 4-6 For the second embodiment of the utility model, the embodiment provides a connecting mechanism,

[0040] Specifically, the locking member 103 comprises a first limiting hole 103a and a second limiting hole 103b which are annularly arranged on the top of the mounting frame 101 and the connecting frame 102, the first limiting hole 103a penetrates through the mounting frame 101, and the inner wall of the second limiting hole 103b is symmetrically provided with an adjusting groove 103b-1, the adjusting groove 103b-1 is semi-arc-shaped, and through the arrangement of the adjusting groove 103b-1, the positioning block 103h on the connecting block 103e can be effectively limited and fixed, so that the connection and locking of the mounting frame 101 and the connecting frame 102 are realized.

[0041] Preferably, the locking member 103 further comprises a connecting rod 103c which is slidably arranged in the first limiting hole 103a, a handle 103d is welded on the top of the connecting rod 103c, the outer wall of the handle 103d is provided with anti-skid lines 103d-1, through the arrangement of the anti-skid lines 103d-1, the handle 103d can be better rotated by the staff, so that the phenomenon of slipping is avoided, and the staff can operate the handle 103d to drive the connecting rod 103c to rotate is ensured.

[0042] It is worth noting that: the bottom of the connecting rod 103c is welded with a connecting block 103e, the bottom of the connecting block 103e is symmetrically provided with a placing groove 103f, the inside of the placing groove 103f is provided with a first spring 103g, one end of the first spring 103g is provided with a positioning block 103h, the positioning block 103h is movably arranged in the placing groove 103f, the positioning block 103h is slidably arranged in the second limiting hole 103b, through the cooperation between the placing groove 103f and the first spring 103g, the positioning block 103h at one end of the first spring 103g is slidably arranged on both sides of the connecting block 103e, when the positioning block 103h is inserted into the second limiting hole 103b, the positioning block 103h is rotated, so that the positioning block 103h can be better inserted into the adjusting groove 103b-1.

[0043] Further, the fixing member 104 comprises a first fixing hole 104a and a second fixing hole 104b arranged on the connecting rod 103c, the second fixing hole 104b is higher than the first fixing hole 104a, through the arrangement of the first fixing hole 104a and the second fixing hole 104b, the fixing member 104 can be better inserted into the connecting rod 103c after the operation of the connecting rod 103c, the locking of the connecting rod 103c is realized, and the phenomenon that the connecting rod 103c rotates or moves up and down after the operation is avoided, the fixing block 104c is fixedly installed on the mounting frame 101, the sleeve 104d is welded on the outer side of the fixing block 104c, the second spring 104e is arranged in the sleeve 104d, one end of the second spring 104e is provided with a fixing rod 104f, and the fixing rod 104f is movably installed in the first fixing hole 104a, through the arrangement of the second spring 104e, the distance between the fixing rod 104f and the sleeve 104d can be adjusted according to the use condition.

[0044] Further, the positioning member 105 comprises a positioning plate 105a annularly welded on the top of the mounting frame 101, a positioning hole 105b is arranged through the outer wall of the positioning plate 105a, a bolt 105c is threadedly connected in the positioning hole 105b, the bolt 105c penetrates the positioning plate 105a, and a thread matched with the bolt 105c is arranged in the positioning hole 105b, so that the friction between the bolt 105c and the positioning plate 105a and the inner wall of the body 201 is increased, the sliding of the bolt 105c is avoided, and the fixing effect of the mounting frame 101 is ensured.

[0045] In use, first, the mounting frame 101 is attached to the connecting frame 102, then the fixing rod 104f is taken out of the second fixing hole 104b, then the handle 103d is pressed downward, under the action of the handle 103d, the connecting rod 103c is driven to move downward, so that the connecting block 103e at the bottom of the connecting rod 103c is driven to move downward, the connecting block 103e is inserted into the second limiting hole 103b at the top of the connecting frame 102, then the handle 103d is rotated clockwise, under the action of the handle 103d, the connecting rod 103c is driven to rotate clockwise, so that the connecting block 103e at the bottom of the connecting rod 103c is driven to rotate coaxially, so that the positioning block 103h on one side of the connecting block 103e is inserted into the adjusting groove 103b-1 arranged in the inner side of the second limiting hole 103b, the connection between the mounting frame 101 and the connecting frame 102 is realized;

[0046] When the mounting frame 101 is connected with the connecting frame 102, the fixing rod 104f is loosened, and under the elastic force of the second spring 104e, the fixing rod 104f is ejected from the sleeve 104d and inserted into the first fixing hole 104a, thereby achieving the limiting and fixing of the connecting rod 103c, avoiding the rotation or up and down movement of the connecting rod 103c, and thus ensuring the connection effect between the mounting frame 101 and the connecting frame 102.

[0047] When the mounting frame 101 is connected with the connecting frame 102, the mounting assembly 100 is placed in the body 201 as a whole, and then the bolt 105c is penetrated through the positioning plate 105a on the mounting frame 101, so that the bolt 105c is attached to the inner wall of the body 201, thereby achieving the effect of fixing the mounting frame 101 in the body 201.

[0048] When the cabin manhole is not needed to be ventilated, the above steps are reversed to achieve the disassembly of the mounting assembly 100, which shortens the plugging step of the cabin manhole and is more convenient to operate, and thus will not be described here.

[0049] Embodiment 3

[0050] Referring to Figures 7-8 For the third embodiment of the utility model, the embodiment further provides a cabin manhole ventilation device,

[0051] Specifically, the operation assembly 200 includes a body 201, the body 201 is arranged outside the mounting frame 101, and the body 201 is internally provided with a connecting ring 203, the connecting ring 203 is arranged to support the bottom of the connecting frame 102, thereby avoiding the mounting frame 101 and the connecting frame 102 from sliding or falling downward due to their own gravity when being vertically placed in the body 201, and thus ensuring that the mounting assembly 100 can be stably installed in the cabin manhole, and ensuring the sealing of the cabin manhole when the mounting assembly 100 is operated, thereby avoiding gas leakage.

[0052] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the spirit and scope of the application as described in the claims. For example, the elements can be rearranged, substituted, eliminated, or supplemented, and other elements can be added. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the spirit of the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functionality and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application as expressed in the appended claims. Accordingly, the present application is not limited to the particular embodiments described and illustrated herein, but is intended to cover all modifications that are within the scope of the appended claims.

[0053] Furthermore, in order to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described in detail. Connection mechanisms.

[0054] It is understood that in the development of any actual implementation, numerous implementation-specific decisions can be made. These development efforts can be complex and time-consuming, but can also benefit from advancements in technology and design, as well as from the application of the inventive concepts disclosed herein.

[0055] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application 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 application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all these should be included in the scope of the claims of the present application.

Claims

1. A connection mechanism, characterized by: The utility model relates to a mounting assembly (100) and a mounting method thereof, and the mounting assembly (100) comprises a mounting frame (101), a connecting frame (102) movably mounted at the bottom of the mounting frame (101), a locking piece (103) annularly arranged on the mounting frame (101), a fixing piece (104) arranged on the outer side of the locking piece (103), and a positioning piece (105) annularly arranged on the mounting frame (101). The bottom of the connecting frame (102) is provided with an air bag (102a), and the inner part of the connecting frame (102) is respectively provided with a first reinforcing rib (102b) and a second reinforcing rib (102e).

2. The attachment mechanism of claim 1, wherein: The first reinforcing rib (102b) is arranged in the shape of a cross, and the second reinforcing rib (102e) is arranged in the shape of H.

3. The attachment mechanism of claim 2, wherein: The first reinforcing rib (102b) and the second reinforcing rib (102e) are respectively provided with a first air pipe (102c) and a second air pipe (102f), the first air pipe (102c) is provided with a plurality of air pipes, and the second air pipe (102f) is symmetrically provided with two air pipes.

4. The attachment mechanism of claim 3, wherein: The outer wall of the first air pipe (102c) and the second air pipe (102f) is provided with a sealing body (102d), and the outer wall of the sealing body (102d) is connected to the inner wall of the first reinforcing rib (102b), the second reinforcing rib (102e) and the connecting frame (102) respectively.

5. The attachment mechanism of claim 1, wherein: The locking piece (103) comprises a first limiting hole (103a) and a second limiting hole (103b) annularly arranged on the top of the mounting frame (101) and the connecting frame (102), the first limiting hole (103a) penetrates through the mounting frame (101), the inner wall of the second limiting hole (103b) is symmetrically provided with an adjusting groove (103b-1), and the adjusting groove (103b-1) is arranged in the shape of a semicircle.

6. The attachment mechanism of claim 5, wherein: The locking piece (103) further comprises a connecting rod (103c) slidably mounted in the first limiting hole (103a), the top of the connecting rod (103c) is welded with a handle (103d), and the outer wall of the handle (103d) is provided with anti-skid lines (103d-1).

7. The attachment mechanism of claim 6, wherein: The bottom of the connecting rod (103c) is welded with a connecting block (103e), the bottom of the connecting block (103e) is symmetrically provided with a placing groove (103f), the inside of the placing groove (103f) is provided with a first spring (103g), one end of the first spring (103g) is provided with a positioning block (103h), the positioning block (103h) is movably mounted in the placing groove (103f), and the positioning block (103h) is slidably mounted in the second limiting hole (103b).

8. The attachment mechanism of claim 7, wherein: The fixing part (104) comprises a first fixing hole (104a) and a second fixing hole (104b) arranged outside the connecting rod (103c), the second fixing hole (104b) is higher than the first fixing hole (104a), the mounting frame (101) is fixedly provided with a fixing block (104c), the outer side of the fixing block (104c) is welded with a sleeve (104d), the inside of the sleeve (104d) is provided with a second spring (104e), one end of the second spring (104e) is provided with a fixing rod (104f), and the fixing rod (104f) is movably arranged in the first fixing hole (104a).

9. The attachment mechanism of claim 1, wherein: The positioning part (105) comprises a positioning plate (105a) annularly welded on the top of the mounting frame (101), a positioning hole (105b) is arranged through the outer wall of the positioning plate (105a), the inside of the positioning hole (105b) is threadedly connected with a bolt (105c), and the bolt (105c) penetrates through the positioning plate (105a).

10. A cabin manhole ventilation device characterized by: The connecting mechanism comprises the connecting mechanism of any one of claims 1-9; and The operating assembly (200) comprises a body (201), the body (201) is arranged outside the mounting frame (101), the inside of the body (201) is provided with a connecting ring (203), and the top of the body (201) is hingedly provided with a cover plate (202).

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