Bolt fixing type hatch cover opening and closing state display device

Abstract

The embodiment of the invention provides a bolt fixing type hatch cover opening and closing state display device which comprises a telescopic assembly arranged on a hatch wall below a hatch cover plate. The travel switch is arranged below the telescopic assembly; when the hatch cover plate is closed, the top end of the telescopic assembly abuts against the bottom face of the hatch cover plate, the bottom end of the telescopic assembly drives the travel switch feeler lever to move downwards to the neutral position, the travel switch is not triggered by signals, and it is displayed that the hatch cover plate is closed. When the hatch cover plate is opened, the top end of the telescopic assembly is separated from the hatch cover plate, the bottom end of the telescopic assembly moves upwards, the travel switch feeler lever moves upwards to the triggering position, the travel switch triggers a signal, and it is displayed that the hatch cover plate is opened. According to the embodiment of the invention, the mechanical triggering device is formed through the cooperation of the telescopic assembly and the travel switch, the opening and closing states of the hatch cover are sent out in a signal mode, the opening and closing states of the hatch cover can be displayed in real time, and personnel do not need to check on site.

Description

Technical Field

[0001] This invention relates to the field of ship outfitting technology, and in particular to a bolt-fixed hatch cover opening / closing status display device. Background Technology

[0002] Existing bolt-fixed hatch covers require on-site inspection to determine their open or closed status, and cannot be remotely displayed. The open / closed status cannot be fed back in real time, leading to errors or untimely status display. Summary of the Invention

[0003] In view of the above-mentioned problems existing in the prior art, the present invention provides a bolt-fixed hatch opening and closing status display device to solve the technical problem that the opening and closing status of the hatch cannot be fed back in real time in the prior art.

[0004] This invention provides a bolt-fixed hatch opening / closing status display device, comprising: Telescopic assembly, the telescopic assembly being disposed on the bulkhead below the hatch cover; Limit switch, wherein the limit switch is disposed below the telescopic assembly; When the hatch cover is closed, the top of the telescopic assembly abuts against the bottom surface of the hatch cover, and its bottom end drives the limit switch contact rod to move down to the neutral position. The limit switch is not triggered by a signal, indicating that the hatch cover is closed. When the hatch cover is opened, the top of the telescopic assembly disengages from the hatch cover, its bottom moves upward, the limit switch contact rod moves upward to the trigger position, the limit switch trigger signal indicates that the hatch cover is open.

[0005] In one embodiment, the telescopic component includes, A sleeve, the sleeve being fixedly mounted on the inner side plate of the bulkhead; A push rod is inserted into the sleeve, with its top end extending through the top surface of the sleeve and the bulkhead to the top of the bulkhead, and its bottom end extending through the bottom surface of the sleeve to the bottom of the sleeve and abutting against the contact rod of the limit switch. A spring is sleeved on the push rod and located inside the sleeve. When the hatch cover is closed, the push rod moves downward, the spring is compressed, and the bottom end of the push rod drives the limit switch contact rod to move down to the neutral position. The limit switch is not triggered, indicating that the hatch cover is closed. When the hatch cover is opened, the push rod moves upward under the action of the spring, the limit switch contact rod moves up to the trigger position, the limit switch is triggered, and the hatch cover is opened.

[0006] In one embodiment, the top rod is positioned on the bolt outline between the two hatch cover plates. In one embodiment, the sleeve includes a cylinder body and a cylinder cover, and the cylinder body and the cylinder cover are provided with matching bolts, which are assembled into a whole by screwing.

[0007] In one embodiment, a fixed support is fixedly provided at the top end of the sleeve, and the fixed support is welded and fixed to the bulkhead.

[0008] In one embodiment, the top rod includes a rod body, a limiting ring is fixedly disposed in the middle of the rod body, and the top and bottom ends of the spring abut against the bottom end face of the limiting ring and the inner side of the bottom end of the sleeve, respectively.

[0009] In one embodiment, a contact plate is fixedly provided at the bottom end of the rod, and the diameter of the contact plate is larger than the diameter of the rod.

[0010] In one embodiment, the top of the rod is an arc-shaped end face that is higher in the middle and lower on the periphery.

[0011] In one embodiment, the telescopic component is located on the opposite side of the hinge.

[0012] Compared with the prior art, the beneficial effect of the bolt-fixed hatch opening and closing status display device provided by the embodiments of the present invention is that: the embodiments of the present invention form a mechanical triggering device by the cooperation of the telescopic component and the limit switch, which sends out the hatch opening and closing status in the form of a signal, and can display the hatch opening and closing status in real time without the need for personnel to check on-site. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of a bolt-fixed hatch opening / closing status display device provided in an embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of a bolt-fixed hatch opening / closing status display device provided in an embodiment of the present invention.

[0014] Figure label: 1. Hatch cover plate; 2. Hatch cover sealing ring; 3. Hatch cover seat plate; 4. Bulkhead; 5. Fixed support; 6. Sleeve; 601. Cylinder body; 602. Cylinder cover; 7. Spring; 8. Top rod; 801. Rod body; 802. Limiting ring; 803. Abutment plate; 9. Limit switch; 10. Bolt; 11. Hinge. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0017] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0018] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0019] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0020] Specific embodiments of this application are described below with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to ascertain the true intent based on the user's historical operations, and to avoid unnecessary or redundant details that would obscure this application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in various ways with substantially any suitable detailed structure.

[0021] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0022] The principles and features of the present invention are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of the invention. The following description, in conjunction with... Figure 1-2 The preferred embodiments of the present invention will be described in further detail below: like Figure 1-2 As shown, an embodiment of the present invention provides a bolt-fixed hatch opening / closing status display device, comprising: Telescopic assembly, which is disposed on the bulkhead 4 below the hatch cover plate 1; Limit switch 9, which is located below the telescopic assembly, is used to send out the mechanical switching state transmitted by the telescopic assembly through a signal; When the hatch cover 1 is closed, the top of the telescopic assembly abuts against the bottom surface of the hatch cover 1, and its bottom end drives the contact rod of the limit switch 9 to move down to the neutral position. The limit switch 9 is not triggered by a signal, indicating that the hatch cover 1 is closed. When the hatch cover 1 is opened, the top of the telescopic component disengages from the hatch cover 1, its bottom moves upward, the contact rod of the limit switch 9 moves upward to the trigger position, the limit switch 9 triggers a signal, indicating that the hatch cover 1 is open.

[0023] In one embodiment, the telescopic component includes, A sleeve 6 is fixedly installed on the inner side plate of the bulkhead 4, used to install the top rod 8 and limit the direction and range of movement of the top rod 8; A push rod 8 is inserted inside the sleeve 6. Its top end extends through the top surface of the sleeve 6 and the bulkhead 4 to the top of the bulkhead 4, and its bottom end extends through the bottom surface of the sleeve 6 to the bottom of the sleeve 6 and abuts against the contact rod of the limit switch 9. The push rod 8 is used to mechanically transmit the opening and closing state of the manhole cover. A spring 7 is used to press and reset the push rod 8. The spring 7 is sleeved on the push rod 8 and located inside the sleeve 6. When the hatch cover 1 is closed, the push rod 8 moves downward, the spring 7 is compressed, and the bottom end of the push rod 8 drives the contact rod of the limit switch 9 to move down to the neutral position. The limit switch 9 has no signal trigger, indicating that the hatch cover 1 is closed. When the hatch cover 1 is opened, the push rod 8 moves upward under the action of the spring 7, the contact rod of the limit switch 9 moves up to the trigger position, the limit switch 9 triggers a signal, indicating that the hatch cover 1 is open.

[0024] In one embodiment, the top rod 8 is disposed on the outline of the bolt 10 between the two hatch cover plates 3. When the hatch cover plate 1 is closed, the top end of the top rod 8 is completely retracted into the groove between the two hatch cover plates 3. Thus, the hatch cover sealing ring 2 at the top of the hatch cover plate 3 can meet the watertight requirements of the hatch cover plate 1. In one embodiment, the sleeve 6 includes a cylinder body 601 and a cylinder cover 602. The cylinder body 601 and the cylinder cover 602 are provided with matching bolts, and the two are assembled into a whole by screw connection. By designing the sleeve 6 as two threaded parts, the assembly difficulty of installing the push rod 8 and the spring 7 in the sleeve 6 can be reduced, and the overall length of the sleeve 6 can be adjusted within a certain range, thereby adjusting the initial position and sensitivity of the push rod 8.

[0025] In one embodiment, a fixed support 5 is fixedly provided at the top end of the sleeve 6. The fixed support 5 is welded and fixed to the bulkhead 4. By adding the fixed support 5, a transition structure can be added between the sleeve 6 and the bulkhead 4, which reduces the welding difficulty between the two, ensures the welding quality, and can also reduce welding damage to the base material. Moreover, the sleeve 6 and the fixed support 5 can be welded into a whole in advance during the processing stage to reduce the amount of welding work during on-site installation.

[0026] In one embodiment, the push rod 8 includes a rod body 801, and a limiting ring 802 is fixedly provided in the middle of the rod body 801. The top and bottom ends of the spring 7 abut against the bottom end face of the limiting ring 802 and the inner side of the bottom end of the sleeve 6, respectively. The outer diameter of the limiting ring 802 is larger than the opening diameter of the top and bottom ends of the sleeve 6, which can provide a contact position for the spring 7 and prevent the push rod 8 from coming out of the sleeve 6.

[0027] In one embodiment, a contact plate 803 is fixedly provided at the bottom end of the rod 801. The diameter of the contact plate 803 is larger than the diameter of the rod 801. By adding a larger contact plate 803, the contact stability between the rod 801 and the limit switch 9 contact rod can be ensured, and the stable display of the opening and closing state of the hatch cover 1 can be ensured.

[0028] In one embodiment, the top of the rod 801 is an arc-shaped end face that is high in the middle and low on the periphery. By setting the arc-shaped end face, on the one hand, the sensitivity of the rod 801 can be increased, and on the other hand, it can be ensured that the rod 801 will not cause collision damage to the operator when it is in the extended state.

[0029] In one embodiment, the telescopic component is located on the opposite side of the hinge 11. By placing the telescopic component at the far end of the hinge 11, the accuracy of the opening and closing status display of the hatch cover 1 can be ensured. That is, the limit switch 9 will only be triggered when the hatch cover 1 is completely closed.

[0030] In one embodiment, the telescopic assembly can be provided in two sets, with the two sets of telescopic assemblies complementing each other to ensure the correctness of the opening and closing state of the hatch cover 1.

[0031] The main function of this invention is to use the push rod 8 to mechanically transmit the opening and closing state of the bolt-fixed hatch cover plate 1 and the hatch cover seat plate 3. If the push rod 8 pops up, it means that the hatch cover plate 1 and the hatch cover seat plate 3 are separated and the hatch is in the open state; if the push rod 8 is compressed and does not protrude from the hatch cover seat plate 3, it means that the hatch cover plate 1 and the hatch cover seat plate 3 are attached and the hatch is in the closed state.

[0032] The contact rod of limit switch 9 is mechanically engaged with the push rod 8. When the push rod 8 moves upward, the contact rod of limit switch 9 moves upward, and limit switch 9 will trigger a signal to indicate that it is open. If the push rod 8 moves downward and presses the contact rod of limit switch 9 to its limit position, the contact rod of limit switch 9 is in a neutral position and there is no signal to trigger it, indicating that it is closed.

[0033] The function of spring 7 is to mechanically fix or push the push rod 8 to move up and down.

[0034] The function of limit switch 9 is to transmit open and close signals.

[0035] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A bolt-fixed hatch opening / closing status display device, characterized in that, include: Telescopic assembly, which is disposed on the bulkhead (4) below the hatch cover (1); Limit switch (9), the limit switch (9) is located below the telescopic assembly; When the hatch cover (1) is closed, the top of the telescopic assembly abuts against the bottom surface of the hatch cover (1), and its bottom end drives the contact rod of the limit switch (9) to move down to the neutral position. The limit switch (9) is not triggered by a signal, indicating that the hatch cover (1) is closed. When the hatch cover (1) is opened, the top of the telescopic assembly disengages from the hatch cover (1), its bottom moves upward, the contact rod of the limit switch (9) moves upward to the trigger position, the limit switch (9) triggers a signal, and the hatch cover (1) is displayed as open.

2. The bolt-fixed hatch opening / closing status display device according to claim 1, characterized in that: The telescopic component includes, A sleeve (6) is fixedly installed on the inner side plate of the bulkhead (4); A push rod (8) is inserted inside the sleeve (6). Its top end extends through the top surface of the sleeve (6) and the bulkhead (4) to the top of the bulkhead (4), and its bottom end extends through the bottom surface of the sleeve (6) to the bottom of the sleeve (6) and abuts against the contact rod of the limit switch (9). A spring (7) is sleeved on the top rod (8) and located inside the sleeve (6). When the hatch cover (1) is closed, the top rod (8) moves downward, the spring (7) is compressed, and the bottom end of the top rod (8) drives the contact rod of the limit switch (9) to move down to the neutral position. The limit switch (9) has no signal trigger, indicating that the hatch cover (1) is closed. When the hatch cover (1) is opened, the top rod (8) moves upward under the action of the spring (7), the contact rod of the limit switch (9) moves up to the trigger position, the limit switch (9) triggers a signal, indicating that the hatch cover (1) is open.

3. The bolt-fixed hatch opening / closing status display device according to claim 2, characterized in that: The top rod (8) is set on the outline of the bolt (10) between the two hatch cover plates (3).

4. The bolt-fixed hatch opening / closing status display device according to claim 2, characterized in that: The sleeve (6) includes a cylinder body (601) and a cylinder cover (602). The cylinder body (601) and the cylinder cover (602) are provided with matching bolts, and the two are assembled into a whole by screwing.

5. The bolt-fixed hatch opening / closing status display device according to claim 2, characterized in that: A fixed support (5) is fixedly provided at the top of the sleeve (6), and the fixed support (5) is welded and fixed to the bulkhead (4).

6. The bolt-fixed hatch opening / closing status display device according to claim 2, characterized in that: The top rod (8) includes a rod body (801), and a limiting ring (802) is fixedly installed in the middle of the rod body (801). The top and bottom ends of the spring (7) abut against the bottom end face of the limiting ring (802) and the inner side of the bottom end of the sleeve (6), respectively.

7. The bolt-fixed hatch opening / closing status display device according to claim 6, characterized in that: A contact plate (803) is fixedly provided at the bottom end of the rod (801), and the diameter of the contact plate (803) is larger than the diameter of the rod (801).

8. A bolt-fixed hatch opening / closing status display device according to claim 6, characterized in that: The top of the rod (801) is an arc-shaped end face that is high in the middle and low on the sides.

9. The bolt-fixed hatch opening / closing status display device according to claim 1, characterized in that: The telescopic component is located on the opposite side of the hinge (11).

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