Vacuum separation, dehydration and oil removal device

Abstract

The invention discloses a vacuum separation dehydration and oil removal device, and relates to the technical field of water-oil separation, the vacuum separation dehydration and oil removal device comprises a box body, a heating mechanism, a vacuum mechanism, a condensation mechanism and a circulation mechanism, the heating mechanism is arranged in the box body, a stirring mechanism is arranged in the heating mechanism, the vacuum mechanism is arranged above the heating mechanism, and the condensation mechanism is arranged in the box body. The condensation mechanism is arranged in the box body, and the circulation mechanism is arranged in the box body. Through the arrangement of the condensation mechanism and the circulation mechanism, after water vapor enters the communication hole, cold water continuously circulates between the annular cavity and the cooling cavity, and it is guaranteed that the water vapor can be stably condensed in the communication hole; and meanwhile, due to the inclined communicating holes, condensed liquid water can stably flow into the water storage cavity to be collected, so that the condensation effect of water vapor is improved, and the water-oil separation effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of water-oil separation, and in particular to a vacuum separation, dehydration and oil removal device. Background Art

[0002] Vacuum oil-water separation is the separation of water and oil by using the different boiling points of water and oil under vacuum state. By heating the liquid, when the water in the liquid reaches the boiling point, it evaporates, while the oil in the liquid remains in liquid state, thus achieving the purpose of water-oil separation.

[0003] In the process of water-oil treatment, after the water in the liquid evaporates into water vapor, it is generally condensed back into liquid water for collection. However, the condensation effect in the current separation device is general, and water vapor is prone to reflux, which reduces the water-oil separation effect. At the same time, after the water vapor reflux phenomenon occurs, it is easy for water vapor to enter the vacuum pump, thereby damaging the vacuum pump. For this reason, we propose a vacuum separation, dehydration and oil removal device. Summary of the invention

[0004] The object of the present invention is to provide a vacuum separation, dehydration and oil removal device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a vacuum separation, dehydration and oil removal device, comprising: Box; A heating mechanism, wherein the heating mechanism is arranged inside the box, and a stirring mechanism is arranged inside the heating mechanism; A vacuum mechanism, wherein the vacuum mechanism is arranged above the heating mechanism; A condensing mechanism, wherein the condensing mechanism is arranged inside the box; The circulation mechanism is arranged inside the box.

[0006] Preferably, the heating mechanism comprises a heating chamber, the heating chamber is opened inside the box, an installation chamber is opened inside the box, a heating wire is installed inside the installation chamber, and the stirring mechanism is arranged inside the heating chamber.

[0007] Preferably, the stirring mechanism includes a rotating rod, which is rotatably connected to the inner wall of the heating chamber, and the inner wall of the heating chamber is rotatably provided with a spiral strip, and the outer wall of the spiral strip is arranged in close contact with the inner wall of the heating chamber, and the outer wall of the rotating rod is fixedly connected to a stirring rod, one end of the stirring rod is fixedly connected to the inner wall of the spiral strip, and a servo motor is installed at the top of the box body, and the output end of the servo motor is transmission-connected to the top of the rotating rod.

[0008] Preferably, the vacuum mechanism includes a vacuum pump, which is installed on the top of the box body, the inner wall of the heating chamber is provided with a connecting hole, the output end of the vacuum pump is inserted into the interior of the connecting hole, a sealing valve is installed on the inner wall of the connecting hole, and a sealing mechanism is provided inside the connecting hole.

[0009] Preferably, the blocking mechanism includes a blocking plate, a movable cavity is opened inside the box body, a connecting groove is opened between the movable cavity and the connecting hole, the outer wall of the blocking plate is movably connected with the inner wall of the connecting groove, a connecting rod is movably arranged inside the movable cavity, one side of the blocking plate is fixedly connected with one side of the connecting rod, a gear is sleeved on the outer wall of the rotating rod and located inside the movable cavity, a rack is fixedly connected to the side surface of the connecting rod, the outer wall of the gear is meshed with the outer wall of the rack, a slot is opened on the inner wall of the movable cavity, the connecting rod is inserted into the inner wall of the slot, a first spring is fixedly connected between the connecting rod and the inner wall of the slot, and a connecting mechanism is arranged between the rotating rod and the gear.

[0010] Preferably, the connecting mechanism includes a movable shaft, a movable hole is opened on the outer wall of the rotating rod, the outer wall of the movable shaft and the inner wall of the movable hole are movably connected, a second spring is fixedly connected between the movable shaft and the inner wall of the movable hole, and a clamping hole is opened on the inner wall of the gear.

[0011] Preferably, the condensing mechanism includes a water storage chamber, the water storage chamber is opened inside the box, a connecting hole is provided between the water storage chamber and the heating chamber, the connecting hole is inclined, and the circulation mechanism is provided between the water storage chamber and the heating chamber.

[0012] Preferably, the circulation mechanism includes an annular cavity, which is opened on the outside of the connecting hole, and the inner wall of the annular cavity is fixedly connected with a spiral sheet, a cooling cavity is opened inside the box body, and a first flow hole is opened at the top of the inner wall of the cooling cavity, and a connecting pipe is fixedly connected to the inner wall of the cooling cavity and located at the position of the first flow hole, a piston groove is opened on the inner wall of the first flow hole, a second flow hole is opened between the piston groove and the annular cavity, a third flow hole is opened between the annular cavity and the cooling cavity, a piston block is movably connected with the inner wall of the piston groove, and the first flow hole and the inner wall of the piston groove are both provided with a one-way mechanism, and a moving mechanism is provided between the piston block and the rotating rod.

[0013] Preferably, the one-way mechanism includes a plugging core, the first flow hole and the inner wall of the piston groove are symmetrically fixedly connected with fixing rings, the plugging core is arranged between the two fixing rings, and a third spring is arranged between the plugging core and one of the fixing rings.

[0014] Preferably, the movable mechanism includes a movable rod, the inner wall of the piston groove is provided with a connecting groove, the outer wall of the movable rod is movably connected with the inner wall of the connecting groove, one end of the movable rod is fixedly connected to one side of the piston block, the outer wall of the rotating rod is located inside the movable cavity and is fixedly sleeved with an eccentric wheel disk, the outer wall of the eccentric wheel disk is provided with an annular groove, the other end of the movable rod is inserted in the annular groove, the end of the movable rod is symmetrically rotatably connected with a clamping shaft, the top and bottom ends of the inner wall of the annular groove are provided with clamping grooves, the clamping shaft is inserted in the inner wall of the clamping groove, the outer wall of the clamping shaft is provided with a ball hole, and the inner wall of the ball hole is movably clamped with a rolling ball.

[0015] Technical effects and advantages of the present invention: The present invention utilizes the arrangement of the condensation mechanism and the circulation mechanism, so that after the water vapor enters the connecting hole, cold water will continuously circulate between the annular cavity and the cooling cavity, ensuring that the water vapor can be stably condensed in the connecting hole. At the same time, the obliquely arranged connecting hole allows the condensed liquid water to stably flow into the water storage cavity for collection, thereby improving the condensation effect of the water vapor and ensuring the water-oil separation effect. The present invention utilizes the setting of the blocking mechanism. When the vacuum pump finishes working, the connection mechanism cooperates to make the connecting rod move to drive the blocking plate to move until the blocking plate is completely inserted into the connection hole, so that the heating chamber and the vacuum pump can be isolated, and the phenomenon of water vapor in the heating chamber entering the vacuum pump can be avoided, thereby improving the protection effect of the vacuum pump, reducing the phenomenon of vacuum pump damage, and extending the service life of the vacuum pump. The present invention utilizes the setting of the moving mechanism, so that when the servo motor drives the stirring mechanism to work, it can also drive the piston block to move back and forth in the piston groove, so that the cold water in the cooling chamber can be continuously pumped into the annular cavity through the connecting pipe, the first flow hole, the piston groove and the second flow hole, and the water that absorbs heat in the annular cavity will flow into the cooling chamber through the third flow hole for cooling, so that the cold water continuously circulates into the annular cavity to work, so that the circulation mechanism and the stirring mechanism only need one servo motor to work, which reduces the driving source of the equipment and reduces the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a front cross-sectional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the side sectional structure of the connecting rod of the present invention.

[0019] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at A.

[0020] Figure 5 For the present invention Figure 3 Schematic diagram of the local enlarged structure at point B.

[0021] Figure 6 It is a schematic diagram of the side sectional structure of the connecting pipe of the present invention.

[0022] Figure 7 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point C.

[0023] Figure 8 For the present invention Figure 6 Schematic diagram of the local enlarged structure at D.

[0024] In the figure: 101, box; 201, heating chamber; 202, installation chamber; 203, heating wire; 204, spiral strip; 205, rotating rod; 206, stirring rod; 207, servo motor; 301, vacuum pump; 302, connecting hole; 303, sealing valve; 304, movable chamber; 305, connecting groove; 306, blocking plate; 307, connecting rod; 308, gear; 309, rack; 310, slot; 311, first spring; 312, movable hole; 313, movable shaft; 314, second spring; 315, Card hole; 401, water storage chamber; 402, connecting hole; 403, annular chamber; 404, spiral sheet; 405, cooling chamber; 406, first flow hole; 407, connecting pipe; 408, piston groove; 409, second flow hole; 410, third flow hole; 411, piston block; 412, fixing ring; 413, plugging core; 414, third spring; 501, connecting groove; 502, movable rod; 503, eccentric wheel; 504, annular groove; 505, card shaft; 506, card groove; 507, ball hole; 508, rolling ball. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The present invention provides Figure 1-Figure 8 A vacuum separation, dehydration and oil removal device is shown, comprising a housing 101, a heating mechanism, a vacuum mechanism, a condensation mechanism and a circulation mechanism. The housing 101 is evacuated into a vacuum state by the vacuum mechanism, and then the liquid is heated by the heating mechanism so that the water in the liquid evaporates and is then collected by the condensation mechanism, and the condensation effect of the condensation mechanism is increased by the circulation mechanism.

[0027] Among them, the heating mechanism is arranged inside the box body 101, and a stirring mechanism is arranged inside the heating mechanism. The heating mechanism includes a heating chamber 201, and the heating chamber 201 is opened inside the box body 101. An installation chamber 202 is opened inside the box body 101, and a heating wire 203 is installed inside the installation chamber 202. The stirring mechanism is arranged inside the heating chamber 201. The liquid enters the heating chamber 201 through the feeding component, and then the heating wire 203 is energized to heat the inside of the heating chamber 201 until the temperature reaches the boiling point of water, so that the water evaporates to form water vapor.

[0028] Among them, the stirring mechanism includes a rotating rod 205, which is rotatably connected to the inner wall of the heating chamber 201. The inner wall of the heating chamber 201 is rotatably provided with a spiral strip 204. The outer wall of the spiral strip 204 is arranged in contact with the inner wall of the heating chamber 201. The outer wall of the rotating rod 205 is fixedly connected with a stirring rod 206. One end of the stirring rod 206 is fixedly connected to the inner wall of the spiral strip 204. A servo motor 207 is installed at the top of the box body 101. The output end of the servo motor 207 is transmission-connected to the top of the rotating rod 205. When the servo motor 207 works, the rotating rod 205 can be driven to rotate, so that the stirring rod 206 stirs the liquid inside the heating chamber 201 to increase fluidity, thereby facilitating the separation of water vapor and liquid. At the same time, through the spiral setting of the spiral strip 204, the oil attached to the inner wall of the heating chamber 201 can be scraped downward when the spiral strip 204 rotates.

[0029] Among them, the vacuum mechanism is arranged above the heating mechanism, and the vacuum mechanism includes a vacuum pump 301. The vacuum pump 301 is installed at the top of the box body 101. A connecting hole 302 is opened on the inner wall of the heating chamber 201. The output end of the vacuum pump 301 is inserted into the inside of the connecting hole 302. A sealing valve 303 is installed on the inner wall of the connecting hole 302. A blocking mechanism is arranged inside the connecting hole 302. By operating the vacuum pump 301, the inside of the heating chamber 201 can be evacuated to a vacuum state.

[0030] The blocking mechanism includes a blocking plate 306, a movable cavity 304 is provided inside the box body 101, a connecting groove 305 is provided between the movable cavity 304 and the connecting hole 302, the outer wall of the blocking plate 306 is movably connected with the inner wall of the connecting groove 305, a connecting rod 307 is movably provided inside the movable cavity 304, one side of the blocking plate 306 is fixedly connected with one side of the connecting rod 307, a gear 308 is sleeved on the outer wall of the rotating rod 205 and located inside the movable cavity 304, a rack 309 is fixedly connected to the side of the connecting rod 307, the outer wall of the gear 308 is meshed with the outer wall of the rack 309, a slot 310 is provided on the inner wall of the movable cavity 304, and the connecting rod 307 is inserted. A first spring 311 is arranged on the inner wall of the slot 310, and a connecting rod 307 is fixedly connected to the inner wall of the slot 310. A connecting mechanism is arranged between the rotating rod 205 and the gear 308. The connecting rod 307 can be moved by rotating the gear 308 and engaging with the rack 309. The length of the rack 309 is limited. Until the connecting rod 307 moves to drive the sealing plate 306 to block the connecting hole 302, the gear 308 can no longer drive the connecting rod 307 to move. Even under the elastic force of the first spring 311, the teeth of the outer wall of the gear 308 will prevent the rack 309 from resetting, thereby preventing the water vapor in the heating chamber 201 from entering the vacuum pump 301.

[0031] Among them, the connecting mechanism includes a movable shaft 313, a movable hole 312 is opened on the outer wall of the rotating rod 205, the outer wall of the movable shaft 313 and the inner wall of the movable hole 312 are movably connected, a second spring 314 is fixedly connected between the movable shaft 313 and the inner wall of the movable hole 312, and a clamping hole 315 is opened on the inner wall of the gear 308. When the servo motor 207 works to drive the rotating rod 205 to rotate, the movable shaft 313 will overcome the pulling force of the second spring 314 and move under the action of centrifugal force until the movable shaft 313 is clamped in the clamping hole 315. At this time, the rotating rod 205 can drive the gear 308 to rotate. Until the rotating rod 205 stops rotating, the movable shaft 313 will reset and separate from the clamping hole 315 under the pulling force of the second spring 314. At this time, the rotation of the gear 308 is not blocked, and the connecting rod 307 can be reset under the action of the first spring 311.

[0032] Among them, the condensing mechanism is arranged inside the box body 101, and the condensing mechanism includes a water storage chamber 401. The water storage chamber 401 is opened inside the box body 101. A connecting hole 402 is arranged between the water storage chamber 401 and the heating chamber 201. The connecting hole 402 is inclined. The circulation mechanism is arranged between the water storage chamber 401 and the heating chamber 201. Water vapor enters the connecting hole 402 for condensation, and then flows into the water storage chamber 401 for collection.

[0033] The circulation mechanism is arranged inside the box 101, and the circulation mechanism includes an annular cavity 403, which is opened outside the connecting hole 402, and the inner wall of the annular cavity 403 is fixedly connected with a spiral sheet 404, and the box 101 is provided with a cooling cavity 405, and the top of the inner wall of the cooling cavity 405 is provided with a first flow hole 406, and the inner wall of the cooling cavity 405 is fixedly connected with a connecting pipe 407 at the position of the first flow hole 406, and the inner wall of the first flow hole 406 is provided with a The piston groove 408 has a second flow hole 409 between the piston groove 408 and the annular cavity 403, and a third flow hole 410 is provided between the annular cavity 403 and the cooling cavity 405. The inner wall of the piston groove 408 is movably connected with a piston block 411. The first flow hole 406 and the inner wall of the piston groove 408 are both provided with a one-way mechanism. A moving mechanism is provided between the piston block 411 and the rotating rod 205. The one-way mechanism includes a plug core 413, and the first flow hole 406 and the inner wall of the piston groove 408 are provided with a one-way mechanism. The walls are symmetrically fixedly connected with fixing rings 412, and the plug core 413 is arranged between the two fixing rings 412. A third spring 414 is arranged between the plug core 413 and one of the fixing rings 412, which moves back and forth through the piston block 411. Then, with the cooperation of the two one-way mechanisms, the cold water in the cooling chamber 405 is drawn into the annular chamber 403 through the connecting pipe 407, the first flow hole 406, the piston groove 408 and the second flow hole 409, and the water that absorbs heat in the annular chamber 403 will flow into the cooling chamber 405 through the third flow hole 410 for cooling, so that the cold water continuously circulates into the annular chamber 403 for work, and a refrigeration plate is installed in the cooling chamber 405 to ensure that the water is cooled in the cooling chamber 405, thereby ensuring the stability of the condensation mechanism. The refrigeration plate, servo motor 207, vacuum pump 301 and heating wire 203 are respectively connected to the external power supply through an external switch, which is convenient for the operator to control and improves the convenience of the operator's operation.

[0034] The moving mechanism includes a movable rod 502, a connecting groove 501 is provided on the inner wall of the piston groove 408, the outer wall of the movable rod 502 is movably connected with the inner wall of the connecting groove 501, one end of the movable rod 502 is fixedly connected with one side of the piston block 411, an eccentric wheel disc 503 is fixedly sleeved on the outer wall of the rotating rod 205 and located inside the movable cavity 304, an annular groove 504 is provided on the outer wall of the eccentric wheel disc 503, the other end of the movable rod 502 is inserted into the inside of the annular groove 504, and the end of the movable rod 502 is symmetrically connected to the clamping shaft 50 5. The top and bottom ends of the inner wall of the annular groove 504 are provided with a clamping groove 506, and the clamping shaft 505 is inserted in the inner wall of the clamping groove 506. The outer wall of the clamping shaft 505 is provided with a ball hole 507, and the inner wall of the ball hole 507 is movably provided with a rolling ball 508. The eccentric wheel 503 can be driven to rotate by rotating the rotating rod 205. The clamping groove 506 limits the clamping shaft 505, so that the eccentric rotation of the eccentric wheel 503 will drive the movable rod 502 to reciprocate, thereby driving the piston block 411 to reciprocate, ensuring the stability of the circulation mechanism.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum separation, dehydration and oil removal device, characterized in that: include: Box (101); A heating mechanism, the heating mechanism being arranged inside the box (101), and a stirring mechanism being arranged inside the heating mechanism; A vacuum mechanism, wherein the vacuum mechanism is arranged above the heating mechanism; A condensing mechanism, wherein the condensing mechanism is arranged inside the box (101); A circulation mechanism, wherein the circulation mechanism is arranged inside the box body (101).

2. A vacuum separation, dehydration and oil removal device according to claim 1, characterized in that: The heating mechanism comprises a heating chamber (201), the heating chamber (201) is opened inside the box body (101), an installation chamber (202) is opened inside the box body (101), a heating wire (203) is installed inside the installation chamber (202), and the stirring mechanism is arranged inside the heating chamber (201).

3. A vacuum separation, dehydration and oil removal device according to claim 2, characterized in that: The stirring mechanism comprises a rotating rod (205), the rotating rod (205) being rotatably connected to the inner wall of the heating chamber (201), the inner wall of the heating chamber (201) being rotatably provided with a spiral strip (204), the outer wall of the spiral strip (204) being arranged in close contact with the inner wall of the heating chamber (201), the outer wall of the rotating rod (205) being fixedly connected to a stirring rod (206), one end of the stirring rod (206) being fixedly connected to the inner wall of the spiral strip (204), a servo motor (207) being installed at the top end of the box body (101), the output end of the servo motor (207) being drivingly connected to the top end of the rotating rod (205).

4. The vacuum separation, dehydration and oil removal device according to claim 3, characterized in that: The vacuum mechanism comprises a vacuum pump (301), the vacuum pump (301) being installed at the top of the box body (101), a connecting hole (302) being provided on the inner wall of the heating chamber (201), an output end of the vacuum pump (301) being inserted into the interior of the connecting hole (302), a sealing valve (303) being installed on the inner wall of the connecting hole (302), and a blocking mechanism being provided inside the connecting hole (302).

5. The vacuum separation, dehydration and oil removal device according to claim 4, characterized in that: The blocking mechanism comprises a blocking plate (306); an active cavity (304) is provided inside the box body (101); a connecting groove (305) is provided between the active cavity (304) and the connecting hole (302); the outer wall of the blocking plate (306) is movably connected to the inner wall of the connecting groove (305); a connecting rod (307) is movably provided inside the active cavity (304); one side of the blocking plate (306) is fixedly connected to one side of the connecting rod (307); the outer wall of the rotating rod (205) is located in the active cavity (304); 4), a gear (308) is sleeved inside the connecting rod (307), a rack (309) is fixedly connected to the side of the connecting rod (307), the outer wall of the gear (308) is meshed with the outer wall of the rack (309), a slot (310) is provided on the inner wall of the movable cavity (304), the connecting rod (307) is inserted into the inner wall of the slot (310), a first spring (311) is fixedly connected between the connecting rod (307) and the inner wall of the slot (310), and a connecting mechanism is provided between the rotating rod (205) and the gear (308).

6. The vacuum separation, dehydration and oil removal device according to claim 5, characterized in that: The connecting mechanism comprises a movable shaft (313), an outer wall of the rotating rod (205) is provided with a movable hole (312), the outer wall of the movable shaft (313) and the inner wall of the movable hole (312) are movably connected through each other, a second spring (314) is fixedly connected between the movable shaft (313) and the inner wall of the movable hole (312), and a clamping hole (315) is provided on the inner wall of the gear (308).

7. The vacuum separation, dehydration and oil removal device according to claim 3, characterized in that: The condensing mechanism comprises a water storage chamber (401), the water storage chamber (401) is opened inside the box body (101), a connecting hole (402) is provided between the water storage chamber (401) and the heating chamber (201), the connecting hole (402) is arranged at an angle, and the circulation mechanism is arranged between the water storage chamber (401) and the heating chamber (201).

8. The vacuum separation, dehydration and oil removal device according to claim 7, characterized in that: The circulation mechanism comprises an annular cavity (403), the annular cavity (403) being opened outside the connecting hole (402), the inner wall of the annular cavity (403) being fixedly connected to a spiral sheet (404), the interior of the housing (101) being opened to a cooling cavity (405), the top end of the inner wall of the cooling cavity (405) being opened to a first circulation hole (406), the inner wall of the cooling cavity (405) being fixedly connected to a connecting pipe (407) at the position of the first circulation hole (406), the first circulation hole (406) ) is provided with a piston groove (408) on its inner wall, a second flow hole (409) is provided between the piston groove (408) and the annular cavity (403), a third flow hole (410) is provided between the annular cavity (403) and the cooling cavity (405), a piston block (411) is movably connected to the inner wall of the piston groove (408), a one-way mechanism is provided on the first flow hole (406) and the inner wall of the piston groove (408), and a moving mechanism is provided between the piston block (411) and the rotating rod (205).

9. The vacuum separation, dehydration and oil removal device according to claim 8, characterized in that: The one-way mechanism comprises a plugging core (413), the first flow hole (406) and the inner wall of the piston groove (408) are symmetrically fixedly connected with fixing rings (412), the plugging core (413) is arranged between the two fixing rings (412), and a third spring (414) is arranged between the plugging core (413) and one of the fixing rings (412).

10. The vacuum separation, dehydration and oil removal device according to claim 8, characterized in that: The moving mechanism comprises a movable rod (502), the inner wall of the piston groove (408) is provided with a connecting groove (501), the outer wall of the movable rod (502) is movably connected to the inner wall of the connecting groove (501), one end of the movable rod (502) is fixedly connected to one side of the piston block (411), the outer wall of the rotating rod (205) is fixedly sleeved with an eccentric wheel disc (503) located inside the movable chamber (304), and the outer wall of the eccentric wheel disc (503) is provided with an annular groove ( 504), the other end of the movable rod (502) is inserted into the inside of the annular groove (504), the end of the movable rod (502) is symmetrically rotatably connected to a clamping shaft (505), the top and bottom ends of the inner wall of the annular groove (504) are both provided with clamping grooves (506), the clamping shaft (505) is inserted into the inner wall of the clamping groove (506), the outer wall of the clamping shaft (505) is provided with a ball hole (507), and the inner wall of the ball hole (507) is movably provided with a rolling ball (508).

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