Device for measuring oil content of wool textile

By using a combination of a protective mechanism, a lifting motor and a hydraulic telescopic cylinder in the fiber oil content detection device, the problem of poor heat loss and soaking effect during heating is solved, and a more accurate and efficient measurement of fiber oil content is achieved.

CN222280635UActive Publication Date: 2024-12-31QINGDAO PROD QUALITY INSPECTION INST (QINGDAO PROD QUALITY & SAFETY RISK MONITORING CENT)
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Patent Information

Application Number
CN202420856042.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-24
Publication Date
2024-12-31
Estimated Expiration
2034-04-24

AI Technical Summary

Technical Problem

The existing fiber oil content detection device has severe heat loss during heating, and the anhydrous ethanol soaking effect is poor, resulting in inaccurate detection.

Method used

A wool textile oil content measurement device is designed, which uses a protective mechanism and a lifting motor. The protective cover can be lifted and lowered, which is convenient for heating and soaking filter tube installation, and the extrusion operation is achieved through a hydraulic telescopic cylinder to improve the oil separation effect.

Benefits of technology

Effectively prevent heat loss, improve the soaking effect of anhydrous ethanol and fibers, and ensure the accuracy and efficiency of the detection results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wool textile oil content measuring device which comprises a protection mechanism and a lifting motor installed on one side of the bottom of the protection mechanism, a detection mechanism is arranged in the protection mechanism, hydraulic telescopic cylinders are symmetrically arranged on the top of the detection mechanism, and the protection mechanism comprises a fixed base. A sealing groove is formed in the outer side of the top of the fixed base, the lifting motor is fixedly installed on one side of the interior of the fixed base, the output end of the lifting motor is fixedly connected with a chain wheel transmission assembly, lifting threaded rods are symmetrically connected to the top of the chain wheel transmission assembly, and the tops of the lifting threaded rods are rotationally connected with a protective fixing support. By arranging the protection mechanism, a protection cover can be used for carrying out safety protection on internal parts of the detection device, meanwhile, heat loss is prevented during heating, a lifting motor is used for driving the protection cover to ascend and descend, and installation of the soaking filter pipe is facilitated.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil content measurement, in particular to a device for measuring the oil content of wool textiles. Background Art

[0002] Chemical fibers need to be added with a certain amount of oil during the production and textile process to make the fibers smooth, bunched and antistatic. Too high or too low an oil content will affect the normal textile processing. Therefore, it is the key point of fiber production to quickly and accurately detect the oil content, feed the data back to the workshop in time, and adjust the process parameters so as to control the amount of oil applied.

[0003] Announcement No. CN 214374048 U discloses a detection device for detecting the oil content in fiber, including a heating platform and a protective cover, an oil press and multiple oil press cylinders are arranged above the heating platform, a filter component is arranged at the oil discharge port of each oil press cylinder, and an oil storage tray is arranged on the corresponding heating platform below each oil press cylinder. In actual detection, the protective cover is first removed, a quantitative fiber is placed in the oil press cylinder, and a quantitative anhydrous ethanol is added to soak for half an hour. The anhydrous ethanol will soak and elute the oil agent on the surface of the fiber, and then squeezed by the oil press, the mixed liquid of ethanol and oil agent passes through the filter component and drips onto the oil storage tray below the oil press cylinder, and then the protective cover is buckled. After the oil storage tray is heated by the heating platform, the anhydrous ethanol will evaporate, and the oil agent will remain in the oil tray. After three repeated elution and heating operations, all the oil agents on the fiber are eluted and collected in the oil storage tray. Finally, the protective cover is removed, and the oil storage tray is taken out and the residual oil agent is weighed to obtain the oil content of the fiber. The above detection device is reasonably designed and easy to operate, ensuring the accuracy of the detection results. However, the patent still has the following problems in actual use:

[0004] The detection device for detecting the oil content in the fiber is protected by a protective cover, but the protective cover directly covers the outside of the device, and heat loss will occur during heating, which is not conducive to the rapid heating of anhydrous ethanol and the fiber. At the same time, when the oil is immersed, the bottom is a filtering component, which easily causes the loss of anhydrous ethanol and fails to achieve the effect of immersion.

[0005] A device for measuring the oil content of wool textiles is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide a wool textile oil content determination device to solve the problem that the detection device for detecting the oil content in the fiber proposed in the above-mentioned background technology is protected by a protective cover, but the protective cover directly covers the outside of the device, and heat loss will occur during heating, which is not conducive to the rapid heating of anhydrous ethanol and the fiber. At the same time, when the oil agent is immersed, the bottom is a filter component, which easily causes the loss of anhydrous ethanol and fails to achieve the immersion.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wool textile oil content measuring device, comprising a protection mechanism, and a lifting motor installed on one side of the bottom of the protection mechanism;

[0008] A detection mechanism is arranged inside the protection mechanism, and a hydraulic telescopic cylinder is symmetrically arranged on the top of the detection mechanism;

[0009] Also includes:

[0010] The protection mechanism comprises a fixed base, a sealing groove is provided on the outer side of the top of the fixed base, and the lifting motor is fixedly installed on one side of the inner part of the fixed base;

[0011] Wherein, the output end of the lifting motor is fixedly connected with a sprocket transmission assembly, and the top of the sprocket transmission assembly is symmetrically connected with a lifting threaded rod;

[0012] Among them, the top of the lifting threaded rod is rotatably connected to a protective fixing bracket, and the bottom of the protective fixing bracket is symmetrically installed with a lifting fixing column, and the lifting fixing column is fixedly installed on the top of the fixed base.

[0013] Preferably, the middle part of the lifting fixed column is slidably connected to a lifting sliding sleeve, the middle part of the lifting threaded rod is threadedly connected to a lifting threaded bracket, the lifting threaded bracket is fixedly connected to the lifting sliding sleeve, the outer side of the lifting threaded bracket is fixedly connected to a protective cover, a connecting hinge is symmetrically installed inside the top of the protective cover, and the top of the connecting hinge is rotatably connected to a protective cover.

[0014] Preferably, an unlocking bracket is symmetrically installed on the front side of the protective cover, and an unlocking shaft is rotatably connected inside the unlocking bracket. An unlocking button is fixedly connected to the top of the unlocking shaft, and an unlocking spring is fixedly installed on the back side of the unlocking button. The unlocking spring is fixedly connected to the protective cover, and a locking hook is fixedly connected to the bottom of the unlocking shaft. A locking block is snap-connected inside the locking hook, and the locking block is symmetrically installed on the top of the protective cover.

[0015] Preferably, the detection mechanism includes a detection base, a plurality of heating measuring plates are fixedly installed on the top of the detection base, a detection fixing bracket is fixedly installed on the top of the detection base, the hydraulic telescopic cylinder is symmetrically installed on the top of the detection fixing bracket, and the output end of the hydraulic telescopic cylinder is fixedly connected to an extrusion plate.

[0016] Preferably, a plurality of extrusion sleeves are fixedly installed inside the detection fixed bracket, an extrusion sliding rod is slidably connected inside the extrusion sleeve, an extrusion button is fixedly connected to the top of the extrusion sliding rod, reset springs are symmetrically installed on both sides of the bottom of the extrusion button, and the reset springs are fixedly installed on the top of the detection fixed bracket.

[0017] Preferably, the bottom of the extrusion sleeve is threadedly connected to an immersion filter tube, a filter screen is fixedly installed on the bottom of the immersion filter tube, the bottom of the immersion filter tube is rotatably connected to an opening and closing rotating ring, a plurality of opening and closing slide grooves are provided inside the opening and closing rotating ring, the opening and closing slide grooves are slidably connected to opening and closing limit columns, and the opening and closing limit columns are fixedly connected to the immersion filter tube.

[0018] Preferably, the bottom of the opening and closing rotating ring is rotatably connected to a plurality of opening and closing rotating rods, the ends of the opening and closing rotating rods are rotatably connected to opening and closing baffles, the outer side of the opening and closing baffles is slidably connected to a sealing ring, a plurality of opening and closing rotating shafts are rotatably connected between the opening and closing baffles and the sealing ring, and a plurality of opening and closing rotating handles are fixedly installed on the bottom of the opening and closing rotating ring.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the wool textile oil content determination device can not only use the protective cover to safely protect the internal parts of the detection device by setting the protection mechanism, but also prevent the loss of heat during heating, and use the lifting motor to drive the protective cover to move up and down, so as to facilitate the installation of the immersion filter tube. By setting the detection mechanism, it can not only use the hydraulic telescopic cylinder to realize the sliding of multiple extrusion sliding rods, but also press oil for multiple groups of extrusion sleeves at the same time, and at the same time, through the closing of the opening and closing baffle, it is convenient to immerse the wool textile fiber and anhydrous ethanol. The specific contents are as follows:

[0020] 1. By setting up the protection mechanism, not only can the protection cover be used to safely protect the internal parts of the detection device, but also the lifting motor can be used to drive the sprocket transmission assembly and the lifting threaded rod to rotate, so that the lifting threaded bracket drives the protection cover to move up and down, which is convenient for the installation of the immersion filter tube. At the same time, by pressing the unlocking button and squeezing the unlocking spring to drive the locking hook to rotate, the locking hook is separated from the locking block, the protective cover can be opened, and the squeezing button can be pressed to separate the oil. Through the characteristics of the protective cover and the sealing groove being engaged and connected, the detection device can be closed, which is convenient for heating the heating measuring plate, reducing heat loss, and improving the effect of oil separation;

[0021] 2. By setting up the detection mechanism, not only can the hydraulic telescopic cylinder be used to drive the extrusion plate to move up and down, so as to press the extrusion button, multiple extrusion sliding rods can be slid, and multiple groups of extrusion sleeves can be pressed at the same time to improve the accuracy of the data. At the same time, the threaded connection between the immersion filter tube and the extrusion sleeve is utilized to remove the immersion filter tube, put in wool textile fiber and anhydrous ethanol, and the opening and closing rotating handle is used to drive the opening and closing rotating ring and the opening and closing rotating rod to rotate, so that the opening and closing baffle rotates inside the sealing ring, and the opening and closing baffle is closed, which is convenient for the immersion of wool textile fiber and anhydrous ethanol. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the protection mechanism in the utility model;

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the lifting threaded rod and the protective fixing bracket in the utility model;

[0025] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the detection mechanism in the utility model;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the opening and closing baffle in the utility model in the closed state.

[0028] In the figure: 1. Protective mechanism; 101. Fixed base; 102. Sealing groove; 103. Lifting motor; 104. Sprocket drive assembly; 105. Lifting threaded rod; 106. Protective fixed bracket; 107. Lifting fixed column; 108. Lifting sliding sleeve; 109. Lifting threaded bracket; 110. Protective cover; 111. Connecting hinge; 112. Protective cover; 113. Unlocking bracket; 114. Unlocking shaft; 115. Unlocking button; 116. Unlocking spring; 117. Locking hook; 118. Locking block; 2. Detection machine Structure; 201, detection base; 202, heating measurement plate; 203, detection fixed bracket; 204, hydraulic telescopic cylinder; 205, extrusion plate; 206, extrusion sleeve; 207, extrusion sliding rod; 208, extrusion button; 209, reset spring; 210, immersion filter tube; 211, filter screen; 212, opening and closing rotating ring; 213, opening and closing slide groove; 214, opening and closing limit column; 215, opening and closing rotating rod; 216, opening and closing baffle; 217, sealing ring; 218, opening and closing rotating shaft; 219, opening and closing rotating handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-6The utility model provides a technical solution: a wool textile oil content measuring device, comprising a protection mechanism 1, and a lifting motor 103 installed on one side of the bottom of the protection mechanism 1, a detection mechanism 2 is arranged inside the protection mechanism 1, and a hydraulic telescopic cylinder 204 is symmetrically arranged on the top of the detection mechanism 2, the protection mechanism 1 comprises a fixed base 101, a sealing groove 102 is opened on the outer side of the top of the fixed base 101, the lifting motor 103 is fixedly installed on one side of the inner part of the fixed base 101, wherein the output end of the lifting motor 103 is fixedly connected to a sprocket transmission component 104, and the top of the sprocket transmission component 104 is symmetrically connected to a lifting threaded rod 105, wherein the lifting The top of the descending threaded rod 105 is rotatably connected with a protective fixed bracket 106, and the bottom of the protective fixed bracket 106 is symmetrically installed with a lifting fixed column 107, which is fixedly installed on the top of the fixed base 101. The middle of the lifting fixed column 107 is slidably connected with a lifting sliding sleeve 108. The middle part of the lifting threaded rod 105 is threadedly connected with a lifting threaded bracket 109, and the lifting threaded bracket 109 is fixedly connected to the lifting sliding sleeve 108. The outer side of the lifting threaded bracket 109 is fixedly connected with a protective cover 110, and a connecting hinge 111 is symmetrically installed inside the top of the protective cover 110. The top of the connecting hinge 111 is rotatably connected with a protective cover 112. The front of the protective cover 112 is symmetrically equipped with an unlocking bracket 113, the unlocking bracket 113 is rotatably connected to an unlocking shaft 114 inside, the top of the unlocking shaft 114 is fixedly connected to an unlocking button 115, the back of the unlocking button 115 is fixedly equipped with an unlocking spring 116, the unlocking spring 116 is fixedly connected to the protective cover 112, the bottom of the unlocking shaft 114 is fixedly connected to a locking hook 117, the locking hook 117 is internally engaged and connected to a locking block 118, and the locking block 118 is symmetrically installed on the top of the protective cover 110. By setting the protective mechanism 1, not only the protective cover 110 can be used to safely protect the internal parts of the detection device, but also the lifting mechanism 116 can be used to lift the protective cover 110. The lowering motor 103 drives the sprocket drive assembly 104 and the lifting threaded rod 105 to rotate, so that the lifting threaded bracket 109 drives the protective cover 110 to move up and down, which is convenient for the installation of the immersion filter tube 210. At the same time, by pressing the unlocking button 115 and squeezing the unlocking spring 116, the locking hook 117 is driven to rotate, so that the locking hook 117 is separated from the locking block 118, the protective cover 112 can be opened, and the squeezing button 208 is pressed to separate the oil. Through the characteristics of the locking connection between the protective cover 110 and the sealing groove 102, the detection device can be closed, which is convenient for heating the heating measuring disk 202, reducing heat loss, and improving the oil separation effect.

[0031] The detection mechanism 2 includes a detection base 201, a plurality of heating measuring plates 202 are fixedly installed on the top of the detection base 201, a detection fixed bracket 203 is fixedly installed on the top of the detection fixed bracket 203, a hydraulic telescopic cylinder 204 is symmetrically installed on the top of the detection fixed bracket 203, an output end of the hydraulic telescopic cylinder 204 is fixedly connected to an extrusion plate 205, a plurality of extrusion sleeves 206 are fixedly installed inside the detection fixed bracket 203, an extrusion sliding rod 207 is slidably connected inside the extrusion sleeve 206, and an extrusion pressing rod 207 is fixedly connected to the top of the extrusion sliding rod 207. The bottom of the extrusion sleeve 206 is threadedly connected with an immersion filter tube 210, and a filter screen 211 is fixedly installed at the bottom of the immersion filter tube 210. The bottom of the immersion filter tube 210 is rotatably connected with an opening and closing rotating ring 212, and a plurality of opening and closing sliding grooves 213 are provided inside the opening and closing sliding grooves 213. The opening and closing limiting columns 214 are slidably connected to the immersion filter tube 210. The opening and closing limiting columns 214 are connected to the immersion filter tube 210. The filter tube 210 is fixedly connected, and a plurality of opening and closing rotating rods 215 are rotatably connected to the bottom of the opening and closing rotating ring 212, and an opening and closing baffle 216 is rotatably connected to the end of the opening and closing rotating rod 215, and a sealing ring 217 is slidably connected to the outer side of the opening and closing baffle 216, and a plurality of opening and closing rotating shafts 218 are rotatably connected between the opening and closing baffle 216 and the sealing ring 217, and a plurality of opening and closing rotating handles 219 are fixedly installed at the bottom of the opening and closing rotating ring 212. By setting the detection mechanism 2, not only can the hydraulic telescopic cylinder 204 be used to drive the extrusion plate 205 to move up and down, so as to press the extrusion press Button 208 can realize the sliding of multiple extrusion sliding rods 207, and press oil at the same time for multiple groups of extrusion sleeves 206, thereby improving the accuracy of data. At the same time, by utilizing the characteristics of the threaded connection between the immersion filter tube 210 and the extrusion sleeve 206, the immersion filter tube 210 is removed, and wool textile fiber and anhydrous ethanol are placed in it. The opening and closing rotating handle 219 is used to drive the opening and closing rotating ring 212 and the opening and closing rotating rod 215 to rotate, so that the opening and closing baffle 216 rotates inside the sealing ring 217, thereby realizing the closing of the opening and closing baffle 216, which is convenient for the immersion of wool textile fiber and anhydrous ethanol.

[0032] Working principle: Before using this wool textile oil content determination device, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6As shown, firstly, by utilizing the characteristic of the threaded connection between the immersion filter tube 210 and the extrusion sleeve 206, the immersion filter tube 210 is removed, and wool textile fibers and anhydrous ethanol are placed therein. The opening and closing rotating handle 219 is used to drive the opening and closing rotating ring 212 and the opening and closing rotating rod 215 to rotate, so that the opening and closing baffle 216 rotates inside the sealing ring 217, and the opening and closing baffle 216 is closed. After soaking for half an hour, the anhydrous ethanol will soak and wash away the oil agent on the fiber surface. Secondly, by rotating the handle 219, the opening and closing rotating ring 212 and the opening and closing rotating rod 215 are driven to rotate, so that the opening and closing baffle 216 rotates inside the sealing ring 217, and the opening and closing baffle 216 is opened. The hydraulic telescopic cylinder 204 is used to drive the extrusion plate 205 to move up and down, so as to press the extrusion button 208, so as to realize the sliding of multiple extrusion sliding rods 207, and to press oil of multiple groups of extrusion sleeves 206 at the same time, so that ethyl acetate can be squeezed. The mixture of alcohol and oil passes through the filter 211 and drips onto the heated measuring disk 202. The lifting motor 103 is started to drive the sprocket transmission assembly 104 and the lifting threaded rod 105 to rotate, so that the lifting threaded bracket 109 drives the protective cover 110 to move up and down, so that the protective cover 110 is engaged and connected with the fixed base 101, and the ethanol is evaporated by heating, so as to measure the oil content of the wool textile. Finally, by pressing the unlocking button 115 and squeezing the unlocking spring 116 to drive the locking hook 117 to rotate, the locking hook 117 is separated from the locking block 118, the protective cover 112 can be opened, and the squeezing button 208 is pressed to separate the oil. The detection device can be closed by the characteristics of the locking connection between the protective cover 110 and the sealing groove 102, which is convenient for heating the heated measuring disk 202, reducing heat loss, and improving the effect of oil separation.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or 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 shall be included in the protection scope of the present invention.

Claims

1. A wool textile oil content measuring device, comprising a protection mechanism (1), and a lifting motor (103) installed on one side of the bottom of the protection mechanism (1); A detection mechanism (2) is arranged inside the protection mechanism (1), and a hydraulic telescopic cylinder (204) is symmetrically arranged on the top of the detection mechanism (2); It is characterized in that Also includes: The protection mechanism (1) comprises a fixed base (101), a sealing groove (102) is provided on the outer side of the top of the fixed base (101), and the lifting motor (103) is fixedly mounted on one side of the interior of the fixed base (101); The output end of the lifting motor (103) is fixedly connected to a sprocket transmission assembly (104), and the top of the sprocket transmission assembly (104) is symmetrically connected to a lifting threaded rod (105); The top of the lifting threaded rod (105) is rotatably connected to a protective fixing bracket (106), the bottom of the protective fixing bracket (106) is symmetrically mounted with a lifting fixing column (107), and the lifting fixing column (107) is fixedly mounted on the top of the fixed base (101).

2. The device for measuring the oil content of wool textiles according to claim 1, characterized in that: The middle part of the lifting fixed column (107) is slidably connected to a lifting sliding sleeve (108), the middle part of the lifting threaded rod (105) is threadedly connected to a lifting threaded bracket (109), the lifting threaded bracket (109) is fixedly connected to the lifting sliding sleeve (108), the outer side of the lifting threaded bracket (109) is fixedly connected to a protective cover (110), the top of the protective cover (110) is symmetrically installed with a connecting hinge (111), and the top of the connecting hinge (111) is rotatably connected to a protective cover (112).

3. The device for measuring the oil content of wool textiles according to claim 2, characterized in that: An unlocking bracket (113) is symmetrically mounted on the front of the protective cover (112); an unlocking shaft (114) is rotatably connected to the inside of the unlocking bracket (113); an unlocking button (115) is fixedly connected to the top of the unlocking shaft (114); an unlocking spring (116) is fixedly mounted on the back of the unlocking button (115); the unlocking spring (116) is fixedly connected to the protective cover (112); a locking hook (117) is fixedly connected to the bottom of the unlocking shaft (114); a locking block (118) is snap-connected to the inside of the locking hook (117); and the locking block (118) is symmetrically mounted on the top of the protective cover (110).

4. The device for measuring the oil content of wool textiles according to claim 1, characterized in that: The detection mechanism (2) comprises a detection base (201), a plurality of heating measuring plates (202) are fixedly mounted on the top of the detection base (201), a detection fixing bracket (203) is fixedly mounted on the top of the detection base (201), the hydraulic telescopic cylinder (204) is symmetrically mounted on the top of the detection fixing bracket (203), and an extrusion plate (205) is fixedly connected to the output end of the hydraulic telescopic cylinder (204).

5. A wool textile oil content measuring device according to claim 4, characterized in that: A plurality of extrusion sleeves (206) are fixedly installed inside the detection fixed bracket (203), and an extrusion sliding rod (207) is slidably connected inside the extrusion sleeve (206). A squeezing button (208) is fixedly connected to the top of the squeezing sliding rod (207), and return springs (209) are symmetrically installed on both sides of the bottom of the squeezing button (208), and the return spring (209) is fixedly installed on the top of the detection fixed bracket (203).

6. A wool textile oil content measuring device according to claim 5, characterized in that: The bottom of the extrusion sleeve (206) is threadedly connected to an immersion filter tube (210), a filter screen (211) is fixedly mounted on the bottom of the immersion filter tube (210), an opening and closing rotating ring (212) is rotatably connected to the bottom of the immersion filter tube (210), a plurality of opening and closing sliding grooves (213) are provided inside the opening and closing rotating ring (212), an opening and closing limiting column (214) is slidably connected inside the opening and closing sliding grooves (213), and the opening and closing limiting column (214) is fixedly connected to the immersion filter tube (210).

7. A wool textile oil content measuring device according to claim 6, characterized in that: The bottom of the opening and closing rotating ring (212) is rotatably connected to a plurality of opening and closing rotating rods (215), the ends of the opening and closing rotating rods (215) are rotatably connected to an opening and closing baffle (216), the outer side of the opening and closing baffle (216) is slidably connected to a sealing ring (217), a plurality of opening and closing rotating shafts (218) are rotatably connected between the opening and closing baffle (216) and the sealing ring (217), and a plurality of opening and closing rotating handles (219) are fixedly mounted on the bottom of the opening and closing rotating ring (212).