Protection device for preventing purified oil water pollution of ship oil separator

Abstract

The utility model relates to the technical field of pollution prevention protection devices, in particular to a protection device for preventing purified oil water pollution of a ship oil separator, a purified oil detection part is fixedly arranged on an oil separator part and used for detecting the water content of separated purified oil, the purified oil detection part comprises an electromagnetic valve, and the electromagnetic valve is used for controlling whether water is added into the oil separator part or not; under the condition of normal oil separation operation, the flow of water seal water entering the oil separator body is recorded, the water consumption of one cycle is measured according to the actual oil separation cycle, when the oil separator body works normally, a manager can judge the operation state according to the flow value, and when the oil separator body breaks down, the water seal water enters clean oil, and the water seal water is prevented from entering the clean oil. When the total flow of the water seal water reaches a set value, a sound-light alarm is triggered, meanwhile, water seal water supply is cut off, and then the oil separator is shut down due to water shortage alarm; and the moisture detector can detect the content of moisture in the purified oil, so that the management level of the purification equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to prevent pollution protection device technical field, especially for ship oil separator prevents clean oil water pollution protection device. BACKGROUND

[0002] At present, the ship main engine lubrication purification system adopts centrifugal oil separator for purification treatment, and the ship centrifugal oil separator separates oil, water and impurities by using centrifugal force. Under the continuous action of centrifugal force, oil, water and impurities form water layer, impurity layer and oil layer in the separation cylinder along the radial direction from outside to inside, water is led out, impurities are removed through the slag discharge port periodically, and the purified oil flows out from the outlet close to the shaft, so that the separation of oil, water and impurities is realized. Although the marine centrifugal oil separator technology is relatively mature, the equipment operation is safe and reliable, but various problems will still be encountered in practical application, common problems are: oil in the slag discharge port, oil in the water outlet, water in the clean oil outlet and other faults. Among them, the water in the clean oil outlet is relatively hidden, and can cause clean oil emulsion pollution, and the lubricating oil system of the diesel engine causes the lubricating oil quality to seriously decrease, resulting in machine damage accident. In practical application, machine damage accidents caused by mixing a large amount of water in the lubricating oil purification process are common, and in serious cases, the ship loses power, and then causes the ship to lose control, resulting in significant economic loss.

[0003] The disc-shaped separation disc of the centrifugal oil separator of the patent with the application number CN202111087525.X is provided with a plurality of stacked disc-shaped separation discs, a plurality of groups of small holes arranged at equal intervals and densely can be formed from top to bottom at the edge of the separation disc, which can uniformly distribute the flow and will not produce shear flow, the oil entering the small holes can reach the linear velocity of the outer edge of the disc-shaped separation disc, greatly improving the separation efficiency; meanwhile, the special-shaped flow guide strips are arranged to increase the contact surface with the oil, and the separation effect is further enhanced. However, the application does not provide a water content detection mechanism at the clean oil outlet pipeline, under normal circumstances, the clean oil does not contain much water, but under special circumstances such as improper selection of the heating temperature and specific gravity of the lubricating oil, damage of the water seal water control element, and water content control disorder, oil and water may continuously mix into the clean oil, the oil separator control unit cannot give an alarm or terminate the oil separation operation, thereby causing the lubricating oil of the diesel engine to be emulsion contaminated by mixing a large amount of water, and then causing a machine damage accident. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a ship oil separator water pollution protection device to solve the problem that the clean oil outlet pipeline of the traditional ship main engine lubrication purification system does not have a water content detection function, and the oil separator control unit cannot give an alarm or terminate the oil separation operation.

[0005] In order to achieve the above object, according to one aspect of the present application, a ship oil separator prevents the oil water pollution protection device, including the oil separator part, the oil separator part carries out purification separation to lubricating oil, still include: The oil detection part is fixedly arranged on the oil separator part, is used for detecting the water content of the separated oil, the oil detection part includes electromagnetic valve, the electromagnetic valve is used for controlling whether to add water to the oil separator part;

[0006] Adjustment part, the adjustment part has several, and is fixedly arranged below the electromagnetic valve, for supporting the electromagnetic valve in the oil separator part.

[0007] Further, the oil separator part includes host part, pipeline part, adjustment part and combination valve, the host part includes oil separator control terminal, terminal terminal box and oil separator body, the pipeline part includes water inlet pipe, moisture detection sensor, oil inlet pipe and water flow pipe, the adjustment part includes detection assembly, valve assembly and pneumatic tee control valve, the detection assembly includes moisture detector and pressure transmitter, the valve assembly includes circulating valve and drain valve, the combination valve includes water injection channel and operating water channel.

[0008] Further, the oil separator control terminal is detachably arranged on the outside of the oil separator body, the terminal terminal box is fixedly arranged on the outside of the oil separator body, the oil separator control terminal is electrically connected with the terminal terminal box, the oil separator control terminal is used for controlling the oil separator body, the oil inlet pipe is fixedly connected with the oil separator body, one end of the water flow pipe is fixedly connected with the oil inlet pipe, the other end is fixedly connected with the oil separator body, the water inlet pipe is fixedly connected with the water flow pipe, the water injection channel and the operating water channel are fixedly connected with the water flow pipe, and are in communication with the water inlet pipe.

[0009] Further, the moisture detector, circulating valve, pressure transmitter and drain valve are fixedly arranged on the oil inlet pipe, the pressure transmitter is located on the outside of the drain valve, the moisture detector is located on the outside of the pressure transmitter, the circulating valve is located on the outside of the moisture detector, the pneumatic tee control valve is fixedly arranged on the oil inlet pipe and is located on the outside of the circulating valve.

[0010] Further, the oil detection part further includes transmitter group, outlet group and controller group, the transmitter group includes oil outlet low pressure detection transmitter and oil outlet high pressure detection transmitter, the outlet group includes moisture detection sensor and oil outlet pipe, the controller group includes flow sensor, flow controller and moisture detector, the oil outlet low pressure detection transmitter and the oil outlet high pressure detection transmitter are fixedly arranged at the connection between the oil separator body and the oil inlet pipe.

[0011] Further, the clean oil outlet pipe is fixedly connected with the oil separator body and is located between the clean oil port low pressure detection transmitter and the clean oil port high pressure detection transmitter, the water content detection sensor is fixedly arranged on the clean oil outlet pipe and is used for detecting the water content of the clean oil in the clean oil outlet pipe, and the flow controller and the water content detector are both fixedly arranged on the water flow pipe and are connected with the water content detection sensor.

[0012] Further, the electromagnetic valve comprises an electromagnetic valve body and a connecting pipe, the connecting pipe is fixedly arranged at the bottom end of the electromagnetic valve body, the adjusting part is fixedly arranged at the bottom end of the electromagnetic valve body, the adjusting part comprises a connecting part, a rotating disc part and a locking part, the connecting part comprises a threaded rod, a sleeve, a bandage and a plurality of through holes, the rotating disc part comprises a rotating disc body, a through slot, a locking slot and a plurality of limiting holes, and the locking part comprises a sliding plate, a handle, a plurality of springs and a plurality of limiting rods.

[0013] Further, the threaded rod is fixedly connected with the electromagnetic valve body, the sleeve is threadedly connected with the threaded rod, the rotating disc body is rotationally arranged at the bottom of the sleeve, the bandage is fixedly arranged on one side of the rotating disc body away from the locking part, the through hole is arranged on the bandage in a penetrating mode, the through slot is arranged at one end of the rotating disc body in a penetrating mode, the locking slot is arranged at the end of the rotating disc body and is used for accommodating the sliding plate, the sliding plate is slidingly arranged in the locking slot, the limiting holes are all arranged in the rotating disc body and are used for accommodating the limiting rods, the handle is fixedly arranged at the outer end of the sliding plate, one end of the spring is fixedly connected with the sliding plate, the other end of the spring is fixedly connected with the rotating disc body, and the limiting rods are all fixedly arranged on the inner side of the sliding plate and are all slidingly connected with the rotating disc body.

[0014] Compared with the prior art, the utility model has the advantages that under the normal oil separation operation condition, the water seal water entering the oil separator body has the flow record, the water consumption of one cycle is measured according to the actual oil separation cycle, when the oil separator body normally works, the management personnel can judge the running state through the flow value, when the oil separator body appears the fault, the water seal water enters the clean oil, the total flow of the water seal water will obviously increase, when reaching the set value, the audible and light alarm is triggered, and the water seal water supply is cut off, and then the oil separator stops due to the water shortage alarm; the water content detector can detect the water content in the clean oil, and the management level of the purification equipment is improved; the adjusting part is fixed on the water flow pipe by the bandage, the threaded rod and the sleeve support the electromagnetic valve body, prevent the weight of the electromagnetic valve body from being all pressed on the connecting pipe, the connecting pipe is deformed, and the sealing property of the connection between the connecting pipe and the water flow pipe is influenced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole schematic view of the utility model;

[0016] Figure 2 It is the flow chart of the utility model;

[0017] Figure 3 It is the whole schematic view of the electromagnetic valve of the utility model;

[0018] Figure 4 It is the structure schematic view of the adjusting part of the utility model;

[0019] Figure 5 It is the sectional view of the rotating disc part of the utility model;

[0020] Figure 6 It is the structure schematic view of the locking part of the utility model.

[0021] Illustration:

[0022] 1, inlet pipe; 2, combination valve; 21, water injection channel; 22, operating water channel; 3, oil separator control terminal; 4, terminal terminal box; 5, water content detector; 6, circulating valve; 7, pressure transmitter; 8, drain valve; 9, pneumatic tee control valve; 10, clean oil outlet low pressure detection transmitter; 11, clean oil outlet high pressure detection transmitter; 12, electromagnetic valve; 13, flow sensor; 14, flow controller; 15, water content detector; 16, water content detection sensor; 17, clean oil outlet pipe; 18, oil separator body; 19, oil inlet pipe; 20, water flow pipe; 121, electromagnetic valve body; 122, connecting pipe; 123, adjusting part; 124, threaded rod; 125, sleeve; 126, rotating disc part; 127, locking part; 128, bandage; 129, through hole; 1261, rotating disc body; 1262, through slot; 1263, clamping groove; 1264, limiting hole; 1271, sliding plate; 1272, handle; 1273, spring; 1274, limiting rod. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0024] Please refer to Figures 1 to 6 The embodiment provides a ship oil separator water pollution prevention protection device, which comprises an oil separator part, the oil separator part purifies and separates lubricating oil, and further comprises: a clean oil detection part, the clean oil detection part is fixedly arranged on the oil separator part and is used for detecting the water content of separated clean oil, and the clean oil detection part comprises an electromagnetic valve 12, the electromagnetic valve 12 is used for controlling whether to add water into the oil separator part.

[0025] The adjusting part 123 is arranged below the electromagnetic valve 12 and is used for supporting the electromagnetic valve 12 on the oil separator part.

[0026] The oil separator part includes a main machine part, a pipeline part, an adjustment part and a combination valve 2, the main machine part includes an oil separator control terminal 3, a terminal junction box 4 and an oil separator body 18, the pipeline part includes a water inlet pipe 1, a water content detection sensor 16, an oil inlet pipe 19 and a water flow pipe 20, the adjustment part includes a detection assembly, a valve assembly and a pneumatic tee control valve 9, the detection assembly includes a water content detector 5 and a pressure transmitter 7, the valve assembly includes a circulating valve 6 and a drain valve 8, and the combination valve 2 includes a water injection channel 21 and an operating water channel 22.

[0027] The oil separator control terminal 3 is detachably arranged outside the oil separator body 18, the terminal junction box 4 is fixedly arranged outside the oil separator body 18, the oil separator control terminal 3 is electrically connected with the terminal junction box 4, the oil separator control terminal 3 is used for controlling the oil separator body 18, the oil inlet pipe 19 is fixedly connected with the oil separator body 18, one end of the water flow pipe 20 is fixedly connected with the oil inlet pipe 19, the other end of the water flow pipe 20 is fixedly connected with the oil separator body 18, the water inlet pipe 1 is fixedly connected with the water flow pipe 20, the water injection channel 21 and the operating water channel 22 are both fixedly connected with the water flow pipe 20 and are both in communication with the water inlet pipe 1.

[0028] The water content detector 5, the circulating valve 6, the pressure transmitter 7 and the drain valve 8 are all fixedly arranged on the oil inlet pipe 19, the pressure transmitter 7 is located outside the drain valve 8, the water content detector 5 is located outside the pressure transmitter 7, the circulating valve 6 is located outside the water content detector 5, and the pneumatic tee control valve 9 is fixedly arranged on the oil inlet pipe 19 and is located outside the circulating valve 6.

[0029] The clean oil detection part further includes a transmitter group, an outlet group and a controller group, the transmitter group includes a clean oil port low pressure detection transmitter 10 and a clean oil port high pressure detection transmitter 11, the outlet group includes the water content detection sensor 16 and a clean oil outlet pipe 17, and the controller group includes a flow sensor 13, a flow controller 14 and a water content detector 15, the clean oil port low pressure detection transmitter 10 and the clean oil port high pressure detection transmitter 11 are both fixedly arranged at the connection position of the oil separator body 18 and the oil inlet pipe 19.

[0030] The clean oil outlet pipe 17 is fixedly connected with the oil separator body 18 and is located between the clean oil port low pressure detection transmitter 10 and the clean oil port high pressure detection transmitter 11, the water content detection sensor 16 is fixedly arranged on the clean oil outlet pipe 17 and is used for detecting the water content of the clean oil in the clean oil outlet pipe 17, the flow controller 14 and the water content detector 15 are both fixedly arranged on the water flow pipe 20 and are connected with the water content detection sensor 16, and the flow sensor 13 is fixedly arranged on the water flow pipe 20 and is used for detecting the flow of water in the water flow pipe 20.

[0031] The electromagnetic valve 12 comprises an electromagnetic valve body 121 and a connecting pipe 122 fixedly arranged at the bottom end of the electromagnetic valve body 121, and an adjusting part 123 fixedly arranged at the bottom end of the electromagnetic valve body 121, wherein the adjusting part 123 comprises a connecting part, a rotating disc part 126 and a locking part 127, the connecting part comprises a threaded rod 124, a sleeve 125, a bandage 128 and a plurality of through holes 129, the rotating disc part 126 comprises a rotating disc body 1261, a through slot 1262, a clamping slot 1263 and a plurality of limiting holes 1264, and the locking part 127 comprises a sliding plate 1271, a handle 1272, a plurality of springs 1273 and a plurality of limiting rods 1274.

[0032] The threaded rod 124 is fixedly connected with the electromagnetic valve body 121, the sleeve 125 is threadedly connected with the threaded rod 124, the rotating disc body 1261 is rotationally arranged at the bottom of the sleeve 125, the bandage 128 is fixedly arranged at one side of the rotating disc body 1261 away from the locking part 127, the through holes 129 are penetratingly arranged on the bandage 128, the through slot 1262 is penetratingly arranged at one end of the rotating disc body 1261, the clamping slot 1263 is arranged at the end of the rotating disc body 1261 and used for containing the sliding plate 1271, the limiting holes 1264 are all arranged in the rotating disc body 1261 and used for containing the limiting rods 1274, the handle 1272 is fixedly arranged at the outer end of the sliding plate 1271, one end of each spring 1273 is fixedly connected with the sliding plate 1271 and the other end thereof is fixedly connected with the rotating disc body 1261, and the limiting rods 1274 are all fixedly arranged at the inner side of the sliding plate 1271 and all in sliding connection with the rotating disc body 1261.

[0033] The bandage 128 is made of soft cloth, rubber or plastic and can be bent and wound on the water flow pipe 20, the diameters of the through holes 129 and the limiting holes 1264 are all greater than the diameter of the limiting rods 1274, so that the limiting rods 1274 can pass through the through holes 129 and the limiting holes 1264 and fix the bandage 128 on the rotating disc body 1261.

[0034] The water amount controller is arranged in the oil separator body 18, and when the water content in the oil separator body 18 exceeds the set value of the water amount controller, the water amount controller will give an alarm.

[0035] The connecting pipe 122 is screwed in the corresponding threaded port of the water flow pipe 20, the electromagnetic valve body 121 is connected to the water flow pipe 20, after the connecting pipe 122 is installed in place, the sleeve 125 is rotated to move downward along the threaded rod 124, the rotating disc part 126 is abutted against the water flow pipe 20, the rotating disc part 126 is rotated to make the band 128 located at one side of the water flow pipe 20, the handle 1272 is pulled outward, the spring 1273 is elongated, the handle 1272 drives the limiting rod 1274 to slide outward through the sliding plate 1271, the limiting rod 1274 is away from the through slot 1262, the band 128 is pulled up to pass through the water flow pipe 20 from below and enter the through slot 1262 and is pulled up tightly, the through hole 129 is aligned with the limiting hole 1264, the handle 1272 is loosened, the spring 1273 rebounds to pull the sliding plate 1271 back into the clamping groove 1263, the limiting rod 1274 extends into the limiting hole 1264 through the through hole 129, and the band 128 is clamped in the through slot 1262, the adjusting part 123 is fixed on the water flow pipe 20, the threaded rod 124 and the sleeve 125 support the electromagnetic valve body 121 to prevent the weight of the electromagnetic valve body 121 from being entirely pressed on the connecting pipe 122 to cause deformation of the connecting pipe 122 and affect the sealing performance of the connection between the connecting pipe 122 and the water flow pipe 20.

[0036] The operating water from the water inlet pipe 1 enters the lower water inlet pipe of the oil separator body 18 through the operating water passage 22 of the combination valve 2, the movable bottom tray in the oil separator body 18 is lifted to close the separation cylinder inside, then the water seal water is added from the water injection passage 21 of the combination valve 2, after the water injection is completed, a large amount of operating water enters the lower water inlet pipe of the oil separator body 18, the separation cylinder is opened, and the first deslagging is realized; after the first or second deslagging is completed (according to the program setting), the operating water and the water seal water are sequentially added according to the above method again, after the water seal is established, the lubricating oil to be treated enters the oil inlet of the oil separator body 18 from the pneumatic tee control valve 9, is purified by the oil separator body 18, a stable oil-water interface is formed, the clean oil flows out through the clean oil outlet pipe 17 into the diesel engine lubricating oil circulating cabin, the separated water is discharged through the drain valve 8 to the oil residue cabin, and the separated oil residue is temporarily stored on the outer circumferential surface of the inner cavity of the separation cylinder, when the set separation time arrives or the detection condition is detected, the deslagging operation is started; under the normal oil separation operation condition, the water seal water entering the oil separator body 18 is recorded in the flow, the water consumption of one cycle is measured according to the actual oil separation cycle (the actual measurement is that 1L of water is consumed for each of the deslagging and the water seal), the automatic deslagging is performed 3 times per working shift, and about 5L of water is consumed for the automatic water injection during the operation, the water amount alarm value is set to 10L on the water amount controller, the water amount controller automatically interrupts the power supply once every four hours to make the flow parameter zero, when the oil separator body 18 is normally operated, the management personnel can judge the operation state through the flow value, when the oil separator body 18 fails, the water seal water enters the clean oil, the total flow of the water seal water is obviously increased, when the set value (such as 10L) is reached, the audible and light alarm is triggered, and the water seal water supply is cut off, and then the oil separator is stopped due to the lack of water.

[0037] The water detector 15 can detect the water content in the purified oil, and improves the management level of the purification equipment.

[0038] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the above disclosed technical content to obtain equivalent embodiments without departing from the technical solution of the present application. Any modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present application shall still fall within the scope of the technical solution of the present application.

Claims

1. A protection device for preventing clean water pollution of a ship oil separator, comprising an oil separator part which purifies and separates lubricating oil, characterized in that, Also include: Net oil detection part, the net oil detection part is fixedly arranged on the oil separator part, for detecting the water content of the separated net oil, the net oil detection part includes a solenoid valve (12), the solenoid valve (12) is used to control whether water is added to the oil separator part; Adjusting part (123), the adjusting part (123) is several, and is fixedly arranged below the solenoid valve (12), for supporting the solenoid valve (12) in the oil separator part.

2. The marine oil separator anti-pollution protection device according to claim 1, characterized in that, The oil separator part includes a main machine part, a pipeline part, an adjusting part and a combination valve (2), the main machine part includes an oil separator control terminal (3), a terminal terminal box (4) and an oil separator body (18), the pipeline part includes a water inlet pipe (1), a moisture detection sensor (16), an oil inlet pipe (19) and a water flow pipe (20), the adjusting part includes a detection assembly, a valve assembly and a pneumatic tee control valve (9), the detection assembly includes a moisture detector (5) and a pressure transmitter (7), the valve assembly includes a circulating valve (6) and a drain valve (8), and the combination valve (2) includes a water injection channel (21) and an operating water channel (22).

3. The ship oil separator anti-pollution protection device according to claim 2, characterized in that, The oil separator control terminal (3) is detachably arranged on the outer side of the oil separator body (18), the terminal terminal box (4) is fixedly arranged on the outer side of the oil separator body (18), the oil separator control terminal (3) is electrically connected with the terminal terminal box (4), the oil separator control terminal (3) is used to control the oil separator body (18), the oil inlet pipe (19) is fixedly connected with the oil separator body (18), one end of the water flow pipe (20) is fixedly connected with the oil inlet pipe (19), the other end is fixedly connected with the oil separator body (18), the water inlet pipe (1) is fixedly connected with the water flow pipe (20), the water injection channel (21) and the operating water channel (22) are fixedly connected with the water flow pipe (20), and are in communication with the water inlet pipe (1).

4. The marine oil separator pollution prevention protection device of claim 2, wherein, The moisture detector (5), the circulating valve (6), the pressure transmitter (7) and the drain valve (8) are all fixedly arranged on the oil inlet pipe (19), the pressure transmitter (7) is located on the outer side of the drain valve (8), the moisture detector (5) is located on the outer side of the pressure transmitter (7), the circulating valve (6) is located on the outer side of the moisture detector (5), and the pneumatic tee control valve (9) is fixedly arranged on the oil inlet pipe (19) and located on the outer side of the circulating valve (6).

5. The marine oil separator pollution prevention protection device of claim 2, wherein, The net oil detection part further includes a transmitter group, an outlet group and a controller group, the transmitter group includes a net oil port low pressure detection transmitter (10) and a net oil port high pressure detection transmitter (11), the outlet group includes a moisture detection sensor (16) and a net oil outlet pipe (17), and the controller group includes a flow sensor (13), a flow controller (14) and a moisture detector (15), the net oil port low pressure detection transmitter (10) and the net oil port high pressure detection transmitter (11) are both fixedly arranged at the connection between the oil separator body (18) and the oil inlet pipe (19).

6. The marine oil separator pollution prevention protection device of claim 5, wherein, The oil outlet pipe (17) is fixedly connected with the oil separator body (18), and is located between the low pressure detection transmitter (10) and the high pressure detection transmitter (11) of the oil outlet, the moisture detection sensor (16) is fixedly arranged on the oil outlet pipe (17) and used for detecting the water content of the oil in the oil outlet pipe (17), the flow controller (14) and the moisture detector (15) are both fixedly arranged on the water flow pipe (20) and connected with the moisture detection sensor (16), and the flow sensor (13) is fixedly arranged on the water flow pipe (20) and used for detecting the flow of water in the water flow pipe (20).

7. The marine oil separator anti-pollution protection device according to claim 1, characterized in that, The electromagnetic valve (12) comprises an electromagnetic valve body (121) and a connecting pipe (122), the connecting pipe (122) is fixedly arranged at the bottom end of the electromagnetic valve body (121), the adjusting part (123) is fixedly arranged at the bottom end of the electromagnetic valve body (121), the adjusting part (123) comprises a connecting part, a rotating disc part (126) and a locking part (127), the connecting part comprises a threaded rod (124), a sleeve (125), a bandage (128) and a plurality of through holes (129), the rotating disc part (126) comprises a rotating disc body (1261), a through slot (1262), a clamping groove (1263) and a plurality of limiting holes (1264), and the locking part (127) comprises a sliding plate (1271), a handle (1272), a plurality of springs (1273) and a plurality of limiting rods (1274).

8. The marine oil separator pollution prevention protection device of claim 7, wherein, The threaded rod (124) is fixedly connected with the electromagnetic valve body (121), the sleeve (125) is threadedly connected with the threaded rod (124), the rotating disc body (1261) is rotatably arranged at the bottom of the sleeve (125), the bandage (128) is fixedly arranged on one side of the rotating disc body (1261) away from the locking part (127), the through hole (129) is penetratingly arranged on the bandage (128), the through slot (1262) is penetratingly arranged at one end of the rotating disc body (1261), the clamping groove (1263) is arranged at the end of the rotating disc body (1261) and used for accommodating the sliding plate (1271), the sliding plate (1271) is slidingly arranged in the clamping groove (1263), the limiting holes (1264) are all arranged in the rotating disc body (1261) and used for accommodating the limiting rods (1274), the handle (1272) is fixedly arranged at the outer end of the sliding plate (1271), one end of the spring (1273) is fixedly connected with the sliding plate (1271), the other end is fixedly connected with the rotating disc body (1261), and the limiting rods (1274) are all fixedly arranged on the inner side of the sliding plate (1271) and all slidingly connected with the rotating disc body (1261).

Images