Stable negative pressure control device

Abstract

The utility model discloses a stable negative pressure control device, and relates to the technical field of negative pressure control, the stable negative pressure control device comprises a control device front shell and a control device rear shell, the outer side of the control device front shell is fixedly provided with a mother box, the outer side of the control device rear shell is fixedly provided with a son box, and the mother box and the son box are fixedly connected. The beneficial effects of the utility model are that through the arrangement of the sub-box, when the interior of the device is maintained, the control device front shell and the control device rear shell can be separated only by pressing the button, and through the arrangement of the process, the operation is convenient, and the maintenance efficiency is greatly improved. The control device front shell and the control device rear shell can be separated more conveniently, the control device front shell and the control device rear shell can be combined more conveniently, and through the arrangement of the process, mounting and dismounting are more convenient during maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to negative pressure control technical field, concretely is a kind of stable negative pressure control device. BACKGROUND

[0002] Negative pressure pressure controller is a kind of pressure protection automatic controller for vacuum system, when the vacuum pressure in system is greater than set point, controller will automatically cut off circuit, signal is sent, to ensure the normal work of system, it is widely used in various industrial control environment, involves petroleum pipeline, water conservancy and hydropower, railway transportation, intelligent building, production automatic control, aerospace, petrochemical, oil well, electric power, ship, machine tool, pipeline air supply, boiler negative pressure and numerous industries.

[0003] Through the search, the negative pressure control device of the announcement No.CN221468149U is disclosed, and specifically relates to negative pressure control technical field, including control device shell, its back side end face is equipped with control device back shell, one side end face of control device shell is equipped with connecting sliding block, the outer side end face of connecting sliding block is equipped with limit sliding slot, the outer side end face of connecting sliding block is equipped with rotary joint, one side of rotary joint inner end face is equipped with limit sliding block, the utility model discloses in actual use, under the corresponding setting state of rotary joint, limit sliding slot and limit sliding block, connecting sliding block can be conveniently rotated and slid on the outside of rotary joint, while under the corresponding setting state of locking sliding block, connecting internal thread and external thread, control device shell and control device back shell can be conveniently and quickly installed and disassembled, so as to increase the convenience of negative pressure control equipment inspection and maintenance.

[0004] The above-mentioned device can disassemble control device shell and control device back shell when in use, but control device shell and control device back shell need to be aligned before installation in later period, and then installation can be carried out, therefore, we propose a stable negative pressure control device. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a stable negative pressure control device, which solves the problems in the above background art.

[0006] In order to achieve the above object, the utility model discloses a stable negative pressure control device through the following technical scheme, a stable negative pressure control device, including control device front shell and control device rear shell, control device front shell outside fixed mounting has female box, control device rear shell outside fixed mounting has subbox, the one side of subbox is located female box, two spring fixed mounting of subbox inside bottom, two spring another end fixedly connected with press plate, press plate one end fixedly connected with the clamping block, both sides of press plate all fixedly installed limit block, the both sides of subbox all are equipped with limit slot, limit block and limit slot cooperation, the female box is equipped with the clamping groove, the clamping groove is matched with the clamping block, when needing to disassemble or assemble control device front shell and control device rear shell, only need to press the button, then the clamping block will slide down in the clamping groove, then open control device front shell and can complete disassembly, when combining, only need to open control device front shell to control device rear shell and can.

[0007] Preferably, the control device rear shell bottom fixedly connected with the connecting pipe, the connecting pipe outside is equipped with thread one and thread two, and thread two is below thread one, the thread one outside is equipped with the hexagonal installation rotating block of screw connection, the hexagonal installation rotating block bottom fixedly installed with the sleeve pipe, the hexagonal installation rotating block bottom fixedly installed with the sealing strip, the sealing strip is located in the sleeve pipe, in order to prevent the poor sealing when using, only need to twist the hexagonal installation rotating block, when the sealing strip contacts the pipeline of external equipment.

[0008] Preferably, the control device front shell outside fixedly installed with control display screen, indicator light and control button.

[0009] Preferably, the control device front shell outside fixedly installed with two rotating blocks, the control device rear shell outside fixedly installed with fixed block, the fixed block is rotatably connected with two rotating blocks, when disassembling or installing control device front shell and control device rear shell, the part of fixed block and rotating block intersection will rotate as the center.

[0010] Preferably, the control device rear shell outside fixedly installed with power connection, and the power connection one side is fixedly connected with the wiring.

[0011] The utility model provides a kind of stable negative pressure control device, with following beneficial effects:

[0012] 1, the stable negative pressure control device, by the setting of subbox, when repairing inside this device, only need to press button to make control device front shell and control device rear shell separate, the setting of this process, not only when control device front shell and control device rear shell separate is more convenient, and when control device front shell and control device rear shell are combined, it is also very convenient, by the setting of this process, it is more convenient to install and disassemble when repairing.

[0013] 2、The stable negative pressure control device, through the setting of the sleeve, when the external device is connected with the device, because it is in a negative pressure state, in order to ensure that there is no air leakage, the sealing strip can be contacted with the top of the pipeline of the external device by rotating the hexagonal mounting rotating block, and the setting of the process makes the sealing effect better, so that the control is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is another perspective view of the utility model;

[0016] Figure 3 It is a side view of the utility model;

[0017] Figure 4 It is an enlarged view of A in 2 of the utility model;

[0018] Figure 5 It is a schematic view of the connecting pipe of the utility model;

[0019] Figure 6 It is a schematic view of the internal part of the female box of the utility model.

[0020] In the figure: 1, control device front shell; 2, control device rear shell; 3, female box; 301, clamping groove; 4, sub-box; 5, control display screen; 6, indicator light; 7, control button; 8, power connection; 9, wiring; 10, spring; 11, press plate; 12, limiting block; 13, limiting groove; 14, button; 15, clamping block; 16, hexagonal mounting rotating block; 161, sealing strip; 17, sleeve; 18, connecting pipe; 181, thread one; 182, thread two; 19, fixed block; 20, rotating block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figures 1 to 6The utility model provides a technical scheme: a stable negative pressure control device, including control device front shell 1 and control device rear shell 2, control device front shell 1 outside fixed mounting has female box 3, control device rear shell 2 outside fixed mounting has subbox 4, and subbox 4 is located one side of female box 3, and two springs 10 are fixedly installed in the inside bottom of subbox 4, and the other end fixed connection of two springs 10 has press plate 11, and one end fixed connection of press plate 11 has clamping block 15, and clamping block 15 is used for the combination and disassembly of control device front shell 1 and control device rear shell 2, and the both sides of press plate 11 are fixedly installed with limiting block 12, and limiting block 12 is used for preventing press plate 11 from the path of the table when moving, and the both sides in subbox 4 are provided with limiting slot 13, and limiting block 12 is matched with limiting slot 13, and the inside of female box 3 is provided with clamping groove 301, and clamping groove 301 is matched with clamping block 15.

[0023] As Figure 5 Shown, control device rear shell 2 bottom fixed connection has connecting pipe 18, and connecting pipe 18 outside is provided with thread one 181 and thread two 182, and thread two 182 is located below thread one 181, and the outside screw thread connection of thread one 181 has hexagonal installation rotating block 16, and hexagonal installation rotating block 16 is used for moving sleeve pipe 17, and the bottom fixed installation of hexagonal installation rotating block 16 has sleeve pipe 17, and sleeve pipe 17 is used for preventing the dust falling of pipeline connection, and the bottom fixed installation of hexagonal installation rotating block 16 has sealing strip 161, and sealing strip 161 is used for strengthening sealing effect, and sealing strip 161 is located in sleeve pipe 17.

[0024] As Figure 1 Shown, control device front shell 1 outside fixed mounting has control display screen 5, pilot lamp 6 and control button 7, and control display screen 5 is used for the control of control equipment.

[0025] As Figure 3 Shown, control device front shell 1 outside fixed mounting has two rotating blocks 20, and control device rear shell 2 outside fixed mounting has fixed block 19, and fixed block 19 is rotatably connected with two rotating blocks 20.

[0026] As Figure 2 Figure 2 Shown, control device rear shell 2 outside fixed mounting has power supply connecting piece 8, and power supply connecting piece 8 is used for connecting with external power supply, and the side fixed connection of power supply connecting piece 8 has wiring 9.

[0027] In summary, the stable negative pressure control device, when in use, the staff will connect the pipeline of the wrist device on the connecting pipe 18, and cooperate with the thread two 182, and in order to better sealing, can be used by turning the hexagonal mounting rotating block 16, because the hexagonal mounting rotating block 16 will cooperate with the thread one 181, and then can push the sleeve 17 to move down, finally can make the sealing strip 161 contact with the top of the pipeline of the external device, so as to achieve better sealing effect, then connect the wire 9 with the external power supply equipment, and can be operated and controlled by the control display screen 5, the indicating lamp 6 and the control button 7, when the internal failure of the device occurs, the staff only need to press the button 14, and then will press the plate 11 down, and then indirectly make the clamping block 15 move down in the clamping groove 301, and then open the control device front shell 1 up, at this time the control device front shell 1 will rotate with the intersection of the fixed block 19 and the rotating block 20 as the center, at this time the control device front shell 1 and the control device rear shell 2 will be separated, then the staff can repair the internal of the device, when the repair is finished, open the control device front shell 1 to the control device rear shell 2 again, the clamping block 15 will be automatically clamped into the clamping groove 301 in the female box 3 by the elasticity of the spring 10, at this time the control device front shell 1 and the control device rear shell 2 will be fixed together, then the device can continue to work, the above is the working principle of the utility model.

[0028] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A stable negative pressure control device comprising a control device front shell (1) and a control device rear shell (2), characterized in that: The outer side of the control device front shell (1) is fixedly installed with a female box (3), the outer side of the control device rear shell (2) is fixedly installed with a sub-box (4), the sub-box (4) is located on one side of the female box (3), two springs (10) are fixedly installed at the inner bottom of the sub-box (4), the other ends of the two springs (10) are fixedly connected with a pressing plate (11), one end of the pressing plate (11) is fixedly connected with a clamping block (15), the two sides of the pressing plate (11) are fixedly installed with a limiting block (12), the two sides of the sub-box (4) are both provided with a limiting groove (13), the limiting block (12) is matched with the limiting groove (13), the female box (3) is provided with a clamping groove (301) in the inside, and the clamping groove (301) is matched with the clamping block (15).

2. A stable negative pressure control device according to claim 1, wherein: The bottom of the control device rear shell (2) is fixedly connected with a connecting pipe (18), the outer side of the connecting pipe (18) is provided with a thread one (181) and a thread two (182), and the thread two (182) is located below the thread one (181), the outer side of the thread one (181) is screw-connected with a hexagonal installation rotating block (16), the bottom of the hexagonal installation rotating block (16) is fixedly installed with a sleeve pipe (17), the bottom of the hexagonal installation rotating block (16) is fixedly installed with a sealing strip (161), and the sealing strip (161) is located in the sleeve pipe (17).

3. A stable negative pressure control device according to claim 1, wherein: The outer side of the control device front shell (1) is fixedly installed with a control display screen (5), an indicating lamp (6) and a control button (7).

4. The stable negative pressure control device of claim 1, wherein: The outer side of the control device front shell (1) is fixedly installed with two rotating blocks (20), the outer side of the control device rear shell (2) is fixedly installed with a fixed block (19), and the fixed block (19) is rotationally connected with the two rotating blocks (20).

5. The stable negative pressure control device of claim 1, wherein: The outer side of the control device rear shell (2) is fixedly installed with a power supply connecting piece (8), one side of the power supply connecting piece (8) is fixedly connected with a wire (9).

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