Crushing tool bit sealing structure for medical waste treatment

Abstract

The utility model discloses a medical waste treatment crushing tool bit sealing structure which comprises an inflatable sealing ring arranged on the inner wall of a hub, and the inflatable sealing ring is close to the outer wall of a driving shaft. The air inflation device is connected with the air inflation sealing ring, and an electromagnetic valve is connected between the air inflation device and the air inflation sealing ring; and the electromagnetic valve is electrically connected with the controller. According to the scheme, the inflation device is matched with the controller to control the opening state of the electromagnetic valve, inflation and exhaust of the inflation sealing ring can be achieved, the inflation sealing ring makes full contact with the outer side of the driving shaft after being inflated, and sealing of the driving shaft is achieved; after the inflation sealing ring exhausts air, sealing of the driving shaft is relieved, the sealing state of the driving shaft is adjusted according to the sealing requirement, the sealing performance is guaranteed, meanwhile, long-time sealing can be achieved, and the sealing performance is reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical waste treatment technical field, concretely relates to a broken cutter head sealing structure of medical waste treatment. BACKGROUND

[0002] Medical waste treatment equipment produces toxic and harmful gas in the working process. In order to prevent these gas leakage, a reliable sealing structure is needed. The existing sealing structure is often complex and not reliable, and long-time operation can cause sealing performance to be affected due to mechanical wear and tear, etc., and there are safety hazards. SUMMARY

[0003] The utility model provides a broken cutter head sealing structure of medical waste treatment, through inflation device, cooperation controller controls the opening state of solenoid valve, can realize the inflation and exhaust of inflation sealing ring, and inflation sealing ring is fully contacted after inflation with the outside of driving shaft, realizes the sealing of driving shaft, and after the exhaust of inflation sealing ring, the sealing of driving shaft is relieved, and the sealing state of driving shaft is adjusted according to the sealing requirement, can realize long-time sealing while guaranteeing the sealing performance, and the sealing performance is reliable.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] The utility model provides a broken cutter head sealing structure of medical waste treatment, comprising:

[0006] Inflation sealing ring is arranged in the inner wall of wheel hub, and the inflation sealing ring is close to the outer wall of driving shaft.

[0007] Inflation device, the inflation device is connected with the inflation sealing ring, and the solenoid valve is connected between the inflation device and the inflation sealing ring.

[0008] Controller, the solenoid valve is electrically connected with the controller.

[0009] Optionally, the inflation device is connected with the first connecting port of the solenoid valve, and the inflation sealing ring is connected with the second connecting port of the solenoid valve.

[0010] Optionally, the inflation device includes an air compressor, and the air outlet end of the air compressor is connected with the first connecting port of the solenoid valve.

[0011] Optionally, the broken cutter head sealing structure of medical waste treatment further comprises:

[0012] Exhaust device, the air outlet end of the exhaust device is connected with the third connecting port of the solenoid valve.

[0013] Optionally, the air extraction device is an air extraction pump, and an air extraction end of the air extraction pump is connected with the third connecting port of the electromagnetic valve.

[0014] Optionally, the inner wall of the hub is provided with a sealing groove, and the inflatable sealing ring is located inside the sealing groove.

[0015] Optionally, the hub is provided with a gas guide channel penetrating through the inside of the hub, the gas guide channel is in communication with the sealing groove, the inflatable sealing ring is a hollow structure, the inflatable sealing ring is connected with an inflation tube, an end of the inflation tube penetrates through the gas guide channel, and the inflation tube is connected with the second connecting port of the electromagnetic valve.

[0016] Optionally, the outer diameter of the inflation tube is equal to the inner diameter of the gas guide channel.

[0017] Optionally, the outer wall of the inflatable sealing ring away from the drive shaft is adhesively connected with the inner wall of the sealing groove away from the drive shaft.

[0018] Optionally, the hub is provided with a gas inflation channel penetrating through the inside of the hub, an air outlet end of the gas inflation channel is in communication with the sealing groove, and an air inlet end of the gas inflation channel is connected with the second connecting port of the electromagnetic valve; the inflatable sealing ring is a solid structure, two sides of the inflatable sealing ring are in full contact with the inner wall of the sealing groove, and a side of the inflatable sealing ring close to the gas inflation channel is provided with a V-shaped groove.

[0019] The above scheme of the utility model has at least the following beneficial effects:

[0020] The above scheme of the utility model has at least the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structure schematic view of a sealing state when an inflatable sealing ring in a sealing structure of a crushing tool bit for medical waste treatment provided by an embodiment of the utility model is a hollow structure;

[0022] Figure 2 is a structure schematic view of a sealing state when an inflatable sealing ring in a sealing structure of a crushing tool bit for medical waste treatment provided by an embodiment of the utility model is a hollow structure;

[0023] Figure 3is the structural schematic view of the sealing state when the inflation sealing ring in the broken blade head sealing structure of the medical waste treatment is a solid structure provided by the embodiment of the utility model;

[0024] Figure 4 is the structural schematic view of the unsealing state when the inflation sealing ring in the broken blade head sealing structure of the medical waste treatment is a solid structure provided by the embodiment of the utility model.

[0025] The sign of the drawing is explained as follows:

[0026] 1, inflation sealing ring; 11, inflation pipe; 12, V-shaped groove; 2, electromagnetic valve; 21, first connecting port; 22, second connecting port; 23, third connecting port; 3, controller; 4, inflation device; 5, air extraction device; 6, hub; 61, sealing groove; 62, air guide channel; 63, inflation channel; 7, drive shaft. Specific implementation

[0027] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be accurately conveyed to those skilled in the art.

[0028] Embodiment one

[0029] As Figures 1-2 shown, the utility model provides a broken blade head sealing structure of medical waste treatment, it includes:

[0030] Inflation sealing ring 1 set up in the inner wall of hub 6, inflation sealing ring 1 is close to the outer wall of drive shaft 7;

[0031] Inflation device 4, inflation device 4 is connected with inflation sealing ring 1, and electromagnetic valve 2 is connected between inflation device 4 and inflation sealing ring 1;

[0032] Controller 3, electromagnetic valve 2 and controller 3 are electrically connected.

[0033] In this embodiment, through inflation device 4, cooperate with the opening state of controller 3 control electromagnetic valve 2, can realize the inflation and exhaust of inflation sealing ring 1, inflation sealing ring 1 is fully contacted after inflation with the outside of drive shaft 7, realizes the sealing of drive shaft 7, and inflation sealing ring 1 is unsealed after exhaust, removes the sealing of drive shaft 7, adjusts the sealing state of drive shaft 7 according to the sealing requirement, can realize long time sealing while guaranteeing the sealing performance, and the sealing performance is reliable.

[0034] As Figure 1 and Figure 2As shown in the optional embodiment of the utility model, the inflation device 4 is connected with the first connecting port 21 of the electromagnetic valve 2, and the inflation sealing ring 1 is connected with the second connecting port 22 of the electromagnetic valve 2.

[0035] In this embodiment, the opening state of the electromagnetic valve 2 is controlled by the controller 3, and the electromagnetic valve 2 is in the first working state. Figure 1 As shown in the optional embodiment of the utility model, the inflation device 4 is connected with the first connecting port 21 of the electromagnetic valve 2, and the inflation sealing ring 1 is connected with the second connecting port 22 of the electromagnetic valve 2. Figure 2 As shown in the optional embodiment of the utility model, the inflation device 4 is connected with the first connecting port 21 of the electromagnetic valve 2, and the inflation sealing ring 1 is connected with the second connecting port 22 of the electromagnetic valve 2.

[0036] In this embodiment, the opening state of the electromagnetic valve 2 is controlled by the controller 3, and the electromagnetic valve 2 is in the first working state.

[0037] In this embodiment, the opening state of the electromagnetic valve 2 is controlled by the controller 3, and the electromagnetic valve 2 is in the first working state.

[0038] As shown in the optional embodiment of the utility model, the inflation device 4 is connected with the first connecting port 21 of the electromagnetic valve 2, and the inflation sealing ring 1 is connected with the second connecting port 22 of the electromagnetic valve 2. Figure 1 Figure 2 As shown in the optional embodiment of the utility model, the inflation device 4 is connected with the first connecting port 21 of the electromagnetic valve 2, and the inflation sealing ring 1 is connected with the second connecting port 22 of the electromagnetic valve 2.

[0039] The air extraction device 5 is connected with the third connecting port 23 of the electromagnetic valve 2.

[0040] In this embodiment, the opening state of the electromagnetic valve 2 is controlled by the controller 3, and the electromagnetic valve 2 is in the first working state.

[0041] In this embodiment, the opening state of the electromagnetic valve 2 is controlled by the controller 3, and the electromagnetic valve 2 is in the first working state.

[0042] ​In the embodiment, the air extraction pump is electrically connected with the controller 3, the controller 3 controls the electromagnetic valve 2 to be in the second working state, the third connecting port 23 of the electromagnetic valve 2 is in communication with the second connecting port 22, the controller 3 controls the air extraction pump to work, and the rapid exhaust of the inflation sealing ring 1 is realized through the air extraction pump, the second connecting port 22 and the third connecting port 23 of the electromagnetic valve 2, the contact between the inflation sealing ring 1 and the driving shaft 7 is released, and thus the sealing of the driving shaft 7 is released.

[0043] As shown in Figure 1 and Figure 2 In an optional embodiment of the utility model, the inner wall of the wheel hub 6 is provided with a sealing groove 61, and the inflation sealing ring 1 is located inside the sealing groove 61.

[0044] In the embodiment, by arranging the inflation sealing ring 1 inside the sealing groove 61, the stability of the inflation sealing ring 1 can be ensured, so that the inflation sealing ring 1 can be in full contact with the driving shaft 7 after inflation, and the sealing effect on the driving shaft 7 can be ensured.

[0045] As shown in Figure 1 and Figure 2 In an optional embodiment of the utility model, the wheel hub 6 is provided with a gas guide channel 62 penetrating through the inside, and the gas guide channel 62 is in communication with the sealing groove 61; the inflation sealing ring 1 is of a hollow structure, the inflation sealing ring 1 is connected with an inflation pipe 11, the end of the inflation pipe 11 penetrates through the gas guide channel 62, and the inflation pipe 11 is connected with the second connecting port 22 of the electromagnetic valve 2.

[0046] In the embodiment, by arranging the inflation pipe 11, the connection between the inflation sealing ring 1 and the second connecting port 22 of the electromagnetic valve 2 is realized through the inflation pipe 11, and the smooth inflation and exhaust of the inflation sealing ring 1 can be ensured.

[0047] In an optional embodiment of the utility model, the outer diameter of the inflation pipe 11 is equal to the inner diameter of the gas guide channel 62.

[0048] In the embodiment, by making the outer diameter of the inflation pipe 11 equal to the inner diameter of the gas guide channel 62, the stability of the inflation pipe 11 in the gas guide channel 62 can be ensured, and the damage of the connection between the inflation pipe 11 and the inflation sealing ring 1 caused by the shaking of the inflation pipe 11 can be avoided, so that the sealing performance can be ensured.

[0049] In an optional embodiment of the utility model, the outer wall of the inflation sealing ring 1 away from the driving shaft 7 is adhesively connected with the inner wall of the sealing groove 61 away from the driving shaft 7.

[0050] In the embodiment, the inflatable sealing ring 1 is fixed inside the sealing groove 61 by bonding the outer wall of the inflatable sealing ring 1 away from the driving shaft 7 and the inner wall of the sealing groove 61 away from the driving shaft 7, the inflatable sealing ring 1 is in full contact with the outer wall of the driving shaft 7 after inflation, and the inflatable sealing ring 1 is fixed when the driving shaft 7 rotates, so that the driving shaft 7 can rotate normally and be in a sealed state to prevent toxic and harmful gas from leaking; after the inflatable sealing ring 1 is completely deflated, the inflatable sealing ring 1 can be fully separated from the driving shaft 7 to release the sealing of the driving shaft 7.

[0051] As shown in Figure 1 and Figure 2 In an optional embodiment of the utility model, the cross section of the inflatable sealing ring 1 is rectangular structure.

[0052] In the embodiment, the cross section of the inflatable sealing ring 1 is rectangular structure, which can increase the contact area between the inflatable sealing ring 1 and the driving shaft 7 after inflation, thereby helping to improve the sealing effect of the inflatable sealing ring 1 on the driving shaft 7.

[0053] In an optional embodiment of the utility model, a pressure sensor is arranged inside the inflatable sealing ring 1, the pressure sensor and the inflation device 4 are electrically connected with the controller 3, the pressure sensor detects the pressure inside the inflatable sealing ring 1 and transmits the signal to the controller 3 when the inflatable sealing ring 1 is inflated, and the controller 3 controls the inflation device 4 to stop working when the pressure inside the inflatable sealing ring 1 reaches the preset pressure.

[0054] Sealing and sealing release of the driving shaft 7:

[0055] When the sealing of the driving shaft 7 is needed, the controller 3 controls the electromagnetic valve 2 to be in the first working state, the first connecting port 21 and the second connecting port 22 of the electromagnetic valve 2 are communicated, the controller 3 controls the air compressor to work, the inflatable sealing ring 1 is inflated inside by the air compressor, the first connecting port 21 and the second connecting port 22 of the electromagnetic valve 2, the inflatable sealing ring 1 is expanded and in full close contact with the driving shaft 7, and the sealing of the driving shaft 7 is realized;

[0056] When the sealing of the driving shaft 7 is needed to be released, the controller 3 controls the electromagnetic valve 2 to be in the second working state, the third connecting port 23 and the second connecting port 22 of the electromagnetic valve 2 are communicated, the controller 3 controls the air pump to work, the gas in the inflatable sealing ring 1 is quickly extracted by the air pump, the second connecting port 22 and the third connecting port 23 of the electromagnetic valve 2, the contact between the inflatable sealing ring 1 and the driving shaft 7 is released, and the sealing of the driving shaft 7 is released.

[0057] Embodiment two

[0058] As shown in Figure 1 and Figure 2 Figure 3 Figure 4As shown, the difference between the second embodiment and the first embodiment is that the inflatable sealing ring 1 is a solid structure, and specifically:

[0059] The hub 6 is provided with an inflation channel 63 inside, the gas outlet end of the inflation channel 63 is connected with the sealing groove 61, and the gas inlet end of the inflation channel 63 is connected with the second connecting port 22 of the electromagnetic valve 2; the inflatable sealing ring 1 is a solid structure, the two sides of the inflatable sealing ring 1 are in full contact with the inner wall of the sealing groove 61, and the side of the inflatable sealing ring 1 close to the inflation channel 63 is provided with a V-shaped groove 12.

[0060] In this embodiment, in the initial state, the inflatable sealing ring 1 is away from the drive shaft 7, and the drive shaft 7 is in a state of being unsealed;

[0061] When the sealing of the drive shaft 7 is needed, the controller 3 controls the electromagnetic valve 2 to be in the first working state, the first connecting port 21 and the second connecting port 22 of the electromagnetic valve 2 are communicated, the inflation device 4 works, the inflation channel 63, the first connecting port 21 and the second connecting port 22 of the electromagnetic valve 2 are communicated, and the inside of the sealing groove 61 is inflated, the inflated gas contacts the V-shaped groove 12 to press the inflatable sealing ring 1, the inflatable sealing ring 1 is deformed, and the two sides of the inflatable sealing ring 1 are in full contact with the inner wall of the sealing groove 61, so that the inflatable sealing ring 1 is deformed under the pressure of the gas and moves to the drive shaft 7 until the inflatable sealing ring 1 is in full and close contact with the drive shaft 7, and the sealing of the drive shaft 7 is realized;

[0062] When the sealing of the drive shaft 7 is needed, the controller 3 controls the electromagnetic valve 2 to be in the first working state, the first connecting port 21 and the second connecting port 22 of the electromagnetic valve 2 are communicated, the inflation device 4 works, the inflation channel 63, the first connecting port 21 and the second connecting port 22 of the electromagnetic valve 2 are communicated, and the inside of the sealing groove 61 is inflated, the inflated gas contacts the V-shaped groove 12 to press the inflatable sealing ring 1, the inflatable sealing ring 1 is deformed, and the two sides of the inflatable sealing ring 1 are in full contact with the inner wall of the sealing groove 61, so that the inflatable sealing ring 1 is deformed under the pressure of the gas and moves to the drive shaft 7 until the inflatable sealing ring 1 is in full and close contact with the drive shaft 7, and the sealing of the drive shaft 7 is realized;

[0063] In this embodiment, the V-shaped groove 12 can increase the contact area between the inflated gas and the inflatable sealing ring 1, and facilitate the deformation of the inflatable sealing ring 1;

[0064] The side of the inflatable sealing ring 1 close to the drive shaft 7 is a wavy structure, when the inflatable sealing ring 1 contacts the drive shaft 7 under the pressure of the gas, the side of the wavy structure facilitates the inflatable sealing ring 1 to be in full contact with the drive shaft 7, and the sealing effect of the inflatable sealing ring 1 on the drive shaft 7 is ensured.

[0065] The above is the preferred embodiment of the present application, it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A sealing structure for a crusher head in medical waste treatment, characterized in that: include: An inflatable sealing ring (1) is provided on the inner wall of the hub (6), and the inflatable sealing ring (1) is close to the outer wall of the drive shaft (7); An inflation device (4) is connected to the inflation sealing ring (1), and a solenoid valve (2) is connected between the inflation device (4) and the inflation sealing ring (1). The controller (3) is electrically connected to the solenoid valve (2).

2. The sealing structure for the crushing blade of the medical waste treatment according to claim 1, characterized in that, The inflation device (4) is connected to the first connection port (21) of the solenoid valve (2), and the inflation sealing ring (1) is connected to the second connection port (22) of the solenoid valve (2).

3. The sealing structure for the crushing blade of the medical waste treatment according to claim 2, characterized in that, The inflation device (4) includes an air compressor, the air outlet of which is connected to the first connection port (21) of the solenoid valve (2).

4. The sealing structure for the crushing blade of medical waste treatment according to claim 2, characterized in that, Also includes: An air extraction device (5) is provided, wherein the air extraction end of the air extraction device (5) is connected to the third connection port (23) of the solenoid valve (2).

5. The sealing structure for the crushing blade of medical waste treatment according to claim 4, characterized in that, The air extraction device (5) is an air pump, and the air extraction end of the air pump is connected to the third connection port (23) of the solenoid valve (2).

6. The sealing structure for the crushing blade of medical waste treatment according to claim 2, characterized in that, The inner wall of the hub (6) is provided with a sealing groove (61), and the inflatable sealing ring (1) is located inside the sealing groove (61).

7. The sealing structure for the crushing blade of medical waste treatment according to claim 6, characterized in that, An air guide channel (62) is provided inside the hub (6), and the air guide channel (62) is connected to the sealing groove (61); the inflatable sealing ring (1) is a hollow structure, and the inflatable sealing ring (1) is connected to an inflation pipe (11). The end of the inflation pipe (11) passes through the air guide channel (62), and the inflation pipe (11) is connected to the second connection port (22) of the solenoid valve (2).

8. The sealing structure for the crushing blade of medical waste treatment according to claim 7, characterized in that, The outer diameter of the inflation tube (11) is equal to the inner diameter of the air guiding channel (62).

9. The sealing structure for the crushing blade of medical waste treatment according to claim 7, characterized in that, The outer wall of the inflatable sealing ring (1) away from the drive shaft (7) is bonded to the inner wall of the sealing groove (61) away from the drive shaft (7).

10. The sealing structure for the crushing blade of medical waste treatment according to claim 6, characterized in that, An inflation channel (63) is provided inside the hub (6). The outlet end of the inflation channel (63) is connected to the sealing groove (61), and the inlet end of the inflation channel (63) is connected to the second connection port (22) of the solenoid valve (2). The inflation sealing ring (1) is a solid structure. Both sides of the inflation sealing ring (1) are in full contact with the inner wall of the sealing groove (61). A V-groove (12) is provided on the side of the inflation sealing ring (1) near the inflation channel (63).

Images