Deep-sea mechanical automatic on-off pressure switch device

Abstract

The invention relates to a deep-sea mechanical automatic on-off pressure switch device which comprises an upper shell, a lower shell and a base, an electrical isolation seat and an electrical isolation sleeve are arranged in the upper shell, an electrode column connected with a first circuit is arranged in the electrical isolation seat, a liftable firing pin column is arranged in the electrical isolation sleeve, and a second circuit is arranged in the lower shell. A buffer spring is arranged between the lower end of the electrode column and the upper end of the firing pin column, a diaphragm is arranged between the lower shell and the base, a liftable inner ejector rod is arranged in the lower shell, the lower end of the inner ejector rod abuts against the diaphragm, an electrical connection assembly is arranged at the upper end of the inner ejector rod, and a self-reset spring is arranged between the upper end of the inner ejector rod and the lower end of the firing pin column. And the electrical isolation seat is fixed on the upper shell through connecting screws, and any connecting screw is connected with the second circuit. The water surface or underwater automatic power-on and power-off function can be achieved, the water surface or underwater automatic power-on and power-off device is of a pure mechanical structure, extra electrical elements do not need to be arranged, work is stable and reliable, and cost is low.

Description

Technical Field

[0001] The invention relates to the field of marine engineering and underwater robot equipment, in particular to a deep-sea mechanical automatic on-off pressure switch device. Background Art

[0002] Deep-sea scientific research and operational submersibles need to carry a large number of equipment during operation, and will involve a variety of equipment working on the surface and below the water surface. In order to ensure the normal power-on and power-off performance of different equipment, and also to save the energy of the submersible itself, it is necessary to use underwater switch devices to control the power on and off of the equipment. However, most of the underwater switch devices in the prior art require the cooperation of staff to operate, and they cannot realize the automatic power on and off function. For example, the Chinese invention patent with authorization announcement number CN107578951B discloses a magnetic manual switch that can be used for turning the power on and off of an autonomous underwater robot. When the autonomous underwater robot needs to be powered on on land or in water, the staff needs to put the bar magnet close to the upper cover to control the power on and off. Another example is that the Chinese invention patent with authorization announcement number CN112435883B discloses an underwater mechanical on and off switch. When the underwater robot needs to be powered on, the staff needs to use a flat-type wrench to turn the switch knob clockwise. Another example is that the Chinese invention patent with authorization announcement number CN111030665B discloses an induction underwater switch. The device uses strong magnets, Hall sensors and other components, and its cost is relatively high. In addition, the device needs to be controlled by turning the handle when in use. Summary of the invention

[0003] The purpose of the present invention is to provide a deep-sea mechanical automatic on-off pressure switch device, which can realize the automatic on-off function on the water surface or underwater, and has a purely mechanical structure, does not require additional electrical components, works stably and reliably, and has low cost.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A deep-sea mechanical automatic on-off pressure switch device comprises an upper shell, a lower shell and a base which are arranged in sequence from top to bottom, wherein an electrical isolation seat and an electrical isolation sleeve are arranged inside the upper shell, and an electrode column connected to a first circuit is arranged inside the electrical isolation seat, a liftable striker column is arranged inside the electrical isolation sleeve, a buffer spring is arranged between the lower end of the electrode column and the upper end of the striker column, a diaphragm is arranged between the lower shell and the base, a liftable inner push rod is arranged inside the lower shell, and the lower end of the inner push rod abuts against the diaphragm, and the upper end is provided with an electrical connection assembly, a self-resetting spring is arranged between the upper end of the inner push rod and the lower end of the striker column, the electrical isolation seat is fixed to the upper shell by connecting screws, and any connecting screw is connected to the second circuit.

[0006] An isolation pad is provided at the lower end of the electrical isolation sleeve and abuts against the upper wall of the inner cavity of the upper shell. A accommodating groove is provided at the upper end of the electrical isolation sleeve, and a striker sleeve is provided in the accommodating groove. A striker column limiting flange is provided at the upper end of the striker column, and the striker column limiting flange is arranged in the striker sleeve. The lower end of the buffer spring is placed in the striker sleeve and abuts against the upper side of the striker column limiting flange.

[0007] A nut for fixing the first circuit is provided at the upper end of the electrode column.

[0008] The lower shell is provided with a connecting sleeve, and the connecting sleeve is threadedly inserted into the inner cavity of the upper shell, and the self-resetting spring and the electrical connection assembly are arranged in the inner cavity of the connecting sleeve.

[0009] The electrical connection assembly includes a non-metallic push rod screw, a metal striker column screw, a first spring washer and a second spring washer, wherein the first spring washer is fixed to the upper end of the inner push rod by the non-metallic push rod screw, and the second spring washer is fixed to the lower end of the striker column by the metal striker column screw, and the lower end of the self-resetting spring is against the first spring washer, and the upper end is against the second spring washer.

[0010] When the external water depth pressure does not reach the set requirement, the diaphragm remains in a concave state and the inner push rod does not rise. At this time, the first spring gasket remains in contact with the lower outer shell. When the external water depth pressure reaches the set requirement, the diaphragm bulges upward under the action of the external water depth pressure, and the inner push rod is driven upward by the diaphragm. At this time, the first spring gasket is separated from the lower outer shell, and the first spring gasket and the inner push rod are electrically separated by a non-conductive non-metallic push rod screw.

[0011] The electrical connection assembly includes a coaxially arranged metal push rod screw and a metal striker, wherein the metal push rod screw is fixed to the upper end of the inner push rod, and the metal striker is fixed to the lower end of the striker column, and when the inner push rod is in a descending state, the metal push rod screw and the metal striker are separated, the upper end of the self-resetting spring is abutted against the isolation pad at the lower end of the electrical isolation sleeve, and the lower end of the self-resetting spring is abutted against the upper end of the inner push rod.

[0012] The advantages and positive effects of the present invention are:

[0013] 1. The present invention senses the external water depth pressure through a diaphragm, and after the diaphragm is deformed by the external water pressure, it drives the inner push rod, the self-resetting spring, the electrical connection component, the striker column and the like in sequence to realize the automatic on and off function. At the same time, the self-resetting spring can also realize the automatic reset function of the inner push rod and the diaphragm. Therefore, the present invention is a purely mechanical structure as a whole, does not need to be equipped with additional electrical components, works stably and reliably and has low cost.

[0014] 2. The present invention can select different electrical connection component structures according to actual needs, wherein the electrical connection component composed of a non-metallic push rod screw, a metal striker column screw, a first spring washer and a second spring washer can realize the function of normally closed on the water surface and normally open underwater, while the electrical connection component composed of a metal push rod screw and a metal striker can realize the function of normally open on the water surface and normally closed underwater, and the above-mentioned structures are simple and convenient to replace, which improves the flexibility of use and the scope of application of the present invention.

[0015] 3. The present invention utilizes an electrical isolation seat to install the electrode column to achieve electrical isolation between the electrode column and the upper housing, and utilizes an electrical isolation sleeve to install the striker column to achieve electrical isolation between the electrode column and the upper housing, which can ensure that the electrical connection of the present invention is reliable.

[0016] 4. The overall structure of the present invention is compact, the installation and wiring are simple, and it is easy to integrate and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present invention,

[0018] Figure 2 is a schematic structural diagram of another embodiment of the present invention,

[0019] Figure 3 It is a schematic diagram of the appearance of the present invention.

[0020] Among them, 1 is an electrode column, 2 is an electrical isolation seat, 3 is an upper shell, 4 is a sealing ring, 5 is a lower shell, 501 is a connecting sleeve, 6 is a base, 7 is a diaphragm, 8 is an inner push rod, 901 is a non-metallic push rod screw, 902 is a metal push rod screw, 10 is a self-resetting spring, 111 is a first spring gasket, 112 is a metal striker column screw, 113 is a metal striker, 114 is a second spring gasket, 12 is an electrical isolation sleeve, 1201 is an isolation pad, 1202 is a receiving groove, 13 is a striker column, 14 is a striker sleeve, 15 is a buffer spring, 16 is a second circuit, 17 is a first circuit, 18 is a nut, and 19 is a connecting screw. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3As shown, the present invention includes an upper shell 3, a lower shell 5 and a base 6 which are arranged in sequence from top to bottom, wherein an electrical isolation seat 2 and an electrical isolation sleeve 12 are arranged inside the upper shell 3, and an electrode column 1 connected to a first circuit 17 is arranged inside the electrical isolation seat 2, and a liftable striker column 13 is arranged inside the electrical isolation sleeve 12, a buffer spring 15 is arranged between the lower end of the electrode column 1 and the upper end of the striker column 13, a diaphragm 7 is arranged between the lower shell 5 and the base 6, a liftable inner push rod 8 is arranged inside the lower shell 5, and the lower end of the inner push rod 8 abuts against the diaphragm 7, and the upper end is provided with an electrical connection component, a self-resetting spring 10 is arranged between the upper end of the inner push rod 8 and the lower end of the striker column 13, and the electrical isolation seat 2 is fixed to the upper shell 3 by connecting screws 19, and any connecting screw 19 is connected to the second circuit 16.

[0023] The electrical connection of the present invention is as follows: the first circuit 17, the electrode column 1, the buffer spring 15, and the striker column 13 are electrically connected in sequence, and the second circuit 16, the connecting screw 19, the upper shell 3, the lower shell 5, and the inner push rod 8 are electrically connected in sequence, wherein the electrical isolation seat 2 and the electrical isolation sleeve 12 respectively realize the electrical isolation of the electrode column 1 and the striker column 13 from the upper shell 3. The present invention realizes automatic on-off control through external deep water pressure, wherein when the water depth pressure reaches the requirement, the diaphragm 7 will be driven by the external water pressure to drive the inner push rod 8 to overcome the elastic force of the self-resetting spring 10 and move upward, thereby making the electrical connection component at the upper end of the inner push rod 8 cooperate with the striker column 13 to realize on-off control, and when the water depth pressure does not reach the requirement, the elastic force of the self-resetting spring 10 acts on the diaphragm 7 through the inner push rod 8 and keeps the diaphragm 7 in a concave state.

[0024] like Figures 1-2 As shown, the lower end of the electrical isolation sleeve 12 is provided with an isolation pad 1201 which abuts against the upper wall of the inner cavity of the upper shell 3 to ensure the electrical isolation effect, the upper end of the electrical isolation sleeve 12 is provided with a receiving groove 1202, and the receiving groove 1202 is provided with a striker sleeve 14, the upper end of the striker column 13 is provided with a striker column limiting flange, and the striker column limiting flange is arranged in the striker sleeve 14, the striker column limiting flange abuts against the bottom of the groove of the striker sleeve 14 to limit the downward displacement of the striker column 13, and the lower end of the buffer spring 15 is placed in the striker sleeve 14 and abuts against the upper side of the striker column limiting flange.

[0025] like Figures 1-2 As shown, a nut 18 is provided at the upper end of the electrode column 1 for fixing the first circuit 17 , thereby achieving electrical connection between the first circuit 17 and the electrode column 1 .

[0026] like Figures 1-2As shown, sealing rings 4 are provided between the upper shell 3 and the adjacent structure and between the upper shell 3 and the lower shell 5 to ensure sealing.

[0027] like Figure 1 As shown, a connecting sleeve 501 is provided on the lower shell 5 , and the connecting sleeve 501 is threadedly inserted into the inner cavity of the upper shell 3 , and the self-resetting spring 10 and the electrical connection assembly are arranged in the inner cavity of the connecting sleeve 501 .

[0028] like Figures 1-2 As shown, the present invention can select an electrical connection component with a suitable structure according to actual needs.

[0029] Embodiment 1:

[0030] like Figure 1 As shown, in this embodiment, the electrical connection assembly includes a non-metallic push rod screw 901, a metal striker column screw 112, a first spring washer 111 and a second spring washer 114, wherein the first spring washer 111 is fixed to the upper end of the inner push rod 8 by the non-metallic push rod screw 901, and the second spring washer 114 is fixed to the lower end of the striker column 13 by the metal striker column screw 112, and the lower end of the self-resetting spring 10 is against the first spring washer 111, and the upper end is against the second spring washer 114.

[0031] The working principle of this embodiment is:

[0032] This embodiment has the function of normally closed on the surface and normally open underwater, wherein Figure 1 As shown, when the external water depth pressure is relatively small (such as the water surface), the diaphragm 7 remains in a concave state, and the inner push rod 8 does not rise. At this time, the first spring gasket 111 remains in contact with the lower shell 5, and the first circuit 17 and the second circuit 16 are in an electrically connected state, specifically: the first circuit 17, the buffer spring 15, the striker column 13, the second spring gasket 114, the self-resetting spring 10, the first spring gasket 111, the lower shell 5, the upper shell 3, the connecting screws 19, and the second circuit 16 are electrically connected in sequence.

[0033] When the external water depth pressure reaches the requirement (set underwater depth), the diaphragm 7 bulges upward due to the external water depth pressure and drives the inner push rod 8 to move upward. At this time, the first spring gasket 111 is separated from the lower outer shell 5, and the non-conductive non-metallic push rod screw 901 realizes the electrical separation of the first spring gasket 111 and the inner push rod 8, wherein the first spring gasket 111 is fixedly mounted on the non-metallic push rod screw 901 and leaves a distance between it and the end face of the inner push rod 8 on the lower side. At this time, the electrical connection is disconnected, and the automatic disconnection function of the present invention is realized.

[0034] Embodiment 2:

[0035] like Figure 2 As shown, in this embodiment, the electrical connection assembly includes a coaxially arranged metal push rod screw 902 and a metal striker 113, wherein the metal push rod screw 902 is fixed to the upper end of the inner push rod 8, and the metal striker 113 is fixed to the lower end of the striker column 13, and when the inner push rod 8 is in a descending state, the metal push rod screw 902 and the metal striker 113 are separated, the upper end of the self-resetting spring 10 is abutted against the isolation pad 1201 at the lower end of the electrical isolation sleeve 12, and the lower end of the self-resetting spring 10 is abutted against the upper end of the inner push rod 8.

[0036] The working principle of this embodiment is:

[0037] This embodiment has the function of normally open on the water surface and normally closed underwater, wherein when the external water depth pressure is relatively small (such as the water surface), the diaphragm 7 remains in a concave state and the inner push rod 8 does not rise. At this time, the metal push rod screw 902 and the metal striker 113 are also in a separated state and cannot be electrically connected. When the external water depth pressure reaches the requirement (set underwater depth), the diaphragm 7 bulges upward under the action of the external deep water pressure, and drives the inner push rod 8 to move upward to make the metal push rod screw 902 and the metal striker 113 contact, thereby realizing the automatic closing function of the present invention. The electrical connection is specifically as follows: the first circuit 17, the buffer spring 15, the striker column 13, the metal striker 113, the metal push rod screw 902, the inner push rod 8, the lower shell 5, the upper shell 3, the connecting screw 19, and the second circuit 16 are electrically connected in sequence.

Claims

1. A deep-sea mechanical automatic on-off pressure switch device, characterized in that: The invention comprises an upper shell (3), a lower shell (5) and a base (6) which are arranged in sequence from top to bottom, wherein an electrical isolation seat (2) and an electrical isolation sleeve (12) are arranged inside the upper shell (3), and an electrode column (1) connected to a first circuit (17) is arranged inside the electrical isolation seat (2), and a liftable striker column (13) is arranged inside the electrical isolation sleeve (12), a buffer spring (15) is arranged between the lower end of the electrode column (1) and the upper end of the striker column (13), and the lower shell (5) and the base (6) are connected to each other. A diaphragm (7) is provided between the bases (6), a liftable inner push rod (8) is provided inside the lower shell (5), and the lower end of the inner push rod (8) is in contact with the diaphragm (7), and an electrical connection component is provided at the upper end, a self-resetting spring (10) is provided between the upper end of the inner push rod (8) and the lower end of the striker column (13), the electrical isolation seat (2) is fixed to the upper shell (3) by connecting screws (19), and any connecting screw (19) is connected to the second circuit (16).

2. The deep-sea mechanical automatic on-off pressure switch device according to claim 1 is characterized in that: The lower end of the electrical isolation sleeve (12) is provided with an isolation pad (1201) which abuts against the upper wall of the inner cavity of the upper shell (3); the upper end of the electrical isolation sleeve (12) is provided with a receiving groove (1202), and a striker sleeve (14) is provided in the receiving groove (1202); the upper end of the striker column (13) is provided with a striker column limiting flange, and the striker column limiting flange is arranged in the striker sleeve (14); the lower end of the buffer spring (15) is placed in the striker sleeve (14) and abuts against the upper side of the striker column limiting flange.

3. The deep-sea mechanical automatic on-off pressure switch device according to claim 1 is characterized in that: The upper end of the electrode column (1) is provided with a nut (18) for fixing the first circuit (17).

4. The deep-sea mechanical automatic on-off pressure switch device according to claim 1 is characterized in that: The lower shell (5) is provided with a connecting sleeve (501), and the connecting sleeve (501) is threadedly inserted into the inner cavity of the upper shell (3), and the self-resetting spring (10) and the electrical connection assembly are arranged in the inner cavity of the connecting sleeve (501).

5. The deep-sea mechanical automatic on-off pressure switch device according to claim 1 is characterized in that: The electrical connection assembly comprises a non-metallic push rod screw (901), a metal striker column screw (112), a first spring washer (111) and a second spring washer (114), wherein the first spring washer (111) is fixed to the upper end of the inner push rod (8) by means of the non-metallic push rod screw (901), the second spring washer (114) is fixed to the lower end of the striker column (13) by means of the metal striker column screw (112), and the lower end of the self-resetting spring (10) is in contact with the first spring washer (111), and the upper end is in contact with the second spring washer (114).

6. The deep-sea mechanical automatic on-off pressure switch device according to claim 5 is characterized in that: When the external water depth pressure does not reach the set requirement, the diaphragm (7) remains in a concave state, and the inner push rod (8) does not rise. At this time, the first spring gasket (111) remains in contact with the lower shell (5). When the external water depth pressure reaches the set requirement, the diaphragm (7) bulges upward under the action of the external water depth pressure, and the inner push rod (8) is driven upward by the diaphragm (7). At this time, the first spring gasket (111) is separated from the lower shell (5), and the first spring gasket (111) and the inner push rod (8) are electrically separated by a non-conductive non-metallic push rod screw (901).

7. The deep-sea mechanical automatic on-off pressure switch device according to claim 1 is characterized in that: The electrical connection assembly comprises a coaxially arranged metal push rod screw (902) and a metal striker (113), wherein the metal push rod screw (902) is fixed to the upper end of the inner push rod (8), and the metal striker (113) is fixed to the lower end of the striker column (13), and when the inner push rod (8) is in a descending state, the metal push rod screw (902) and the metal striker (113) are separated, the upper end of the self-resetting spring (10) abuts against the isolation pad (1201) at the lower end of the electrical isolation sleeve (12), and the lower end of the self-resetting spring (10) abuts against the upper end of the inner push rod (8).

Images