Energy-saving drying device for hot-dip galvanized parts

Abstract

The invention provides an energy-saving drying device for hot-dip galvanized parts, and relates to the technical field of hot-dip galvanized part machining. A heat exchange pipe is installed in the recycling box, the top of the recycling box is connected with a middle shell, and the top of the middle shell is connected with a drying shell. An exhaust guide pipe is fixedly installed outside the drying shell, and the bottom of the exhaust guide pipe is connected with a recycling box. A containing net bag is placed in the drying shell and is of an annular net groove structure, a sealing cover is buckled to the top of the containing net bag, and the top of the exhaust guide pipe makes contact with the sealing cover. The motor drives the hot air nozzle to rotate, the nozzle of the hot air nozzle blows hot air to the hot-dip galvanized part in the containing net bag in a surrounding mode, and the hot-dip galvanized part can be fully dried within a short time. The problem that in the application process of an existing drying device for hot-dip galvanized part machining, hot air in the fixed direction is generally directly blown to dry the hot-dip galvanized part, and long time needs to be consumed to completely dry the hot-dip galvanized part is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of hot-dip galvanized parts processing, in particular to an energy-saving drying device for hot-dip galvanized parts. Background Art

[0002] Hot-dip galvanizing is to make molten metal react with the iron matrix to produce an alloy layer, thereby combining the matrix and the coating; hot-dip galvanizing is to first pickle the steel parts to remove the iron oxide on the surface of the steel parts. After pickling, they are cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed ammonium chloride and zinc chloride aqueous solution tank, and then sent to a hot-dip plating tank; after cleaning, the residual solution on the surface needs to be removed by a drying device.

[0003] For example, the Chinese patent "CN116753686B A constant temperature drying oven for experiments" introduces hot air into spaces of different heights in a drying chamber by setting up three groups of exhaust ducts at upper, middle and lower levels, and sets up three groups of windward plates at upper, middle and lower levels, so that the hot air discharged from the exhaust ducts impacts the windward plates, and the hot air is further dispersed in the drying chamber to promote mixing of the hot air with the original gas in the drying chamber, promote uniform mixing of the hot air, and improve the drying effect.

[0004] In the application process of existing hot-dip galvanized parts processing drying devices, fixed-direction hot air blowing is generally used to dry the hot-dip galvanized parts. The actual effect is not good. It takes a long time to completely dry the hot-dip galvanized parts. In addition, the energy consumption of the device itself is high, and the thermal energy is not fully utilized, which is not energy-saving and environmentally friendly. Summary of the invention

[0005] The present invention relates to an energy-saving drying device for hot-dip galvanized parts, which solves the problem that the existing drying devices for hot-dip galvanized parts processing generally use fixed-direction hot air direct blowing to dry the hot-dip galvanized parts during application, the actual effect is not good, it takes a long time to completely dry the hot-dip galvanized parts, and the device itself has high energy consumption, lacks full utilization of heat energy, and is not energy-saving and environmentally friendly.

[0006] In a first aspect of the present disclosure, an energy-saving drying device for hot-dip galvanized parts is provided, which specifically comprises: a recovery box; a heat exchange tube is installed inside the recovery box, a middle shell is connected to the top of the recovery box, and a drying shell is connected to the top of the middle shell; an exhaust duct is fixedly installed outside the drying shell, and the bottom of the exhaust duct is connected to the recovery box; a net bag for containing goods is placed inside the drying shell, the net bag for containing goods is an annular structure and a net slot structure, a sealing cover is buckled on the top of the net bag, and the top of the exhaust duct is in contact with the sealing cover; a hot air blower is installed inside the middle shell, an air intake duct is connected to the outside of the hot air blower, the air intake duct is connected to the recovery box, a hot air nozzle is connected to the top of the hot air blower, and the hot air nozzle is connected to the inside of the drying shell; a motor is installed inside the middle shell, a synchronous belt is connected to the top of the motor, and the synchronous belt is connected to the hot air nozzle; a filter screen nozzle and a movable locking ring are connected to the outside of the recovery box, and two positioning plugs are connected to the top of the movable locking ring, and the positioning plugs are connected to the recovery box and the filter screen nozzle.

[0007] Furthermore, the hot air nozzle is rotatably connected to the inside of the drying shell, the nozzle of the hot air nozzle faces the containing net bag, the bottom of the hot air nozzle is rotatably connected to the air outlet of the hot air blower, and the top of the exhaust duct is connected to the top of the middle part of the containing net bag.

[0008] Furthermore, a small pulley is installed on the driving shaft of the motor, and a large pulley is arranged at the bottom of the hot air nozzle. The small pulley is connected to the large pulley through a synchronous belt. The hot air blower heats the incoming air and transports it to the hot air nozzle. The motor drives the hot air nozzle to rotate through the synchronous belt. The nozzle of the hot air nozzle blows the hot air in a circular shape toward the hot-dip galvanized parts inside the net bag, and the hot air is then discharged through the exhaust duct.

[0009] Furthermore, the recovery box is provided with an exhaust chamber, an air intake chamber and a heating chamber, an exhaust port is provided outside the exhaust chamber, the exhaust port is connected to an external exhaust pipeline, and an air intake port is provided outside the air intake chamber, and the air intake port is connected to the bottom of the exhaust duct.

[0010] Furthermore, an air inlet pipe and an air outlet are arranged outside the heating chamber, the air inlet pipe is connected to the filter screen mouth, and the air outlet is connected to the air inlet end of the hot air blower through an air inlet duct.

[0011] Furthermore, the heat exchange tubes are arranged inside the heating chamber, the top of the heat exchange tubes are connected to the air inlet chamber, and the bottom of the heat exchange tubes are connected to the exhaust chamber. The outside air enters the hot air blower through the filter mouth, the heating chamber and the air inlet duct in sequence, and the hot air discharged from the bottom of the exhaust duct enters the external exhaust pipeline through the air inlet chamber, the heat exchange tubes and the exhaust chamber in sequence and is discharged to the outside. The heat released by the heat exchange tubes heats the air circulating inside the heating chamber, thereby preheating the air entering the hot air blower.

[0012] Furthermore, the bottom of the filter mouth is inserted into the air intake pipe, an external connection hole is provided outside the air intake pipe, and an internal connection hole is provided at the bottom of the filter mouth. The internal connection hole is connected to the external connection hole, and the positioning plug is slidably inserted into the external connection hole and the internal connection hole in a connected state.

[0013] Furthermore, the movable locking ring is slidably connected to the outside of the air intake pipe, oblique sliding holes are arranged at both ends of the top of the movable locking ring, a linkage block is arranged outside the positioning plug, and the linkage block is slidably connected in the oblique sliding hole.

[0014] Furthermore, a spring is mounted on the outside of the intake pipe, the bottom of the spring is in contact with the intake pipe, and the top of the spring is in contact with the bottom of the movable locking ring. When the filter mouth and the intake pipe are plugged together, the outer connecting hole is connected to the inner connecting hole, and the movable locking ring moves upward under the influence of the spring thrust. The movable locking ring drives the positioning block to move inward, so that the positioning block is plugged into the inner connecting hole, and the filter mouth is fixed by the positioning block.

[0015] The present invention provides an energy-saving drying device for hot-dip galvanized parts, which has the following beneficial effects: When the present invention is in use, the hot-dip galvanized parts are placed in a surrounding shape inside the containing net bag, the sealing cover is buckled on the top of the containing net bag, the hot air blower heats the incoming air and transports it to the hot air nozzle, the motor drives the hot air nozzle to rotate through the synchronous belt, and the nozzle of the hot air nozzle blows the hot air in a surrounding shape toward the hot-dip galvanized parts inside the containing net bag, and the hot air is then discharged through the exhaust duct, so that the hot-dip galvanized parts can be fully dried in a short time.

[0016] In addition, the outside air enters the hot air blower through the filter mouth, heating chamber and air intake duct in turn, and the hot air discharged from the bottom of the exhaust duct enters the external exhaust pipe through the air intake chamber, heat exchange tube and exhaust chamber in turn and is discharged to the outside. The heat released by the heat exchange tube heats the air circulating in the heating chamber, which has the effect of preheating the air entering the hot air blower, improving the utilization rate of thermal energy, and enabling the hot air blown out by the hot air blower to quickly reach the set heating temperature, effectively saving energy consumption.

[0017] In addition, the filter mesh nozzle has an air filtering effect to ensure the cleanliness of the drying air, thereby ensuring the drying quality of the hot-dip galvanized parts. The filter mesh nozzle is connected to the intake pipe by plugging, which is convenient for regularly removing the filter mesh nozzle to clean the intercepted impurities; when the filter mesh nozzle is plugged together with the intake pipe, the outer connecting hole is connected to the inner connecting hole, and the movable locking ring moves upward under the influence of the spring thrust, and the movable locking ring drives the positioning plug to move inward, so that the positioning plug is plugged into the inner connecting hole, and the filter mesh nozzle is fixed by the positioning plug; when the filter mesh nozzle needs to be removed, the movable locking ring is moved downward, the spring is contracted by force, and the movable locking ring drives the positioning plug to move outward, so that the positioning plug is separated from the inner connecting hole, and the filter mesh nozzle can be removed for cleaning, which is easy to operate.

[0018] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture: Figure 1 The overall axial side structure schematic diagram of the present application is shown; Figure 2 It shows a schematic diagram of the shaft side structure of the present application in another angle state; Figure 3 The schematic diagram of the axial structure of the recycling box of the present application is shown; Figure 4 A schematic diagram of the internal cutaway structure of the recycling box of the present application is shown; Figure 5 A schematic diagram of the cross-section connection structure between the middle shell and the drying shell of the present application is shown; Figure 6 A schematic diagram of the connection structure between the drying shell and the hot air nozzle of the present application is shown; Figure 7 A schematic diagram of the axial side structure of the net bag for holding clothes of the present application is shown; Figure 8 A schematic diagram of the shaft side structure of the present application in which the air intake pipe and the filter nozzle are plugged in is shown; Fig. 9 A schematic diagram of the disassembled structure of the air intake pipe, filter screen, movable locking ring and positioning plug block of the present application is shown.

[0022] Reference numerals list 1. Recovery box; 101. Exhaust chamber; 1011. Exhaust port; 102. Inlet chamber; 1021. Inlet port; 103. Heating chamber; 1031. Inlet pipe; 10311. External connection hole; 1032. Exhaust port; 2. Heat exchange tube; 3. Middle shell; 4. Drying shell; 5. Sealing cover; 6. Net bag; 7. Hot air blower; 8. Inlet duct; 9. Hot air nozzle; 901. Large pulley; 10. Motor; 1001. Small pulley; 11. Synchronous belt; 12. Exhaust duct; 13. Filter mouth; 1301. Internal connection hole; 14. Movable locking ring; 1401. Oblique sliding hole; 15. Positioning plug; 1501. Linkage block; 16. Spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment 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.

[0024] Example 1: Please refer to Figures 1 to 9 : The present invention proposes an energy-saving drying device for hot-dip galvanized parts, comprising: a recovery box 1; a heat exchange tube 2 is installed inside the recovery box 1, a middle shell 3 is connected to the top of the recovery box 1, and a drying shell 4 is connected to the top of the middle shell 3; an exhaust duct 12 is fixedly installed on the outside of the drying shell 4, and the bottom of the exhaust duct 12 is connected to the recovery box 1; a net bag 6 is placed inside the drying shell 4, and the net bag 6 is an annular net groove structure, and a sealing cover 5 is buckled on the top of the net bag 6, and the top of the exhaust duct 12 contacts the sealing cover 5; a hot air blower 7 is installed inside the middle shell 3, and an air intake duct 8 is connected to the outside of the hot air blower 7, and the air intake duct 8 is connected to the recovery box 1, and a hot air nozzle 9 is connected to the top of the hot air blower 7, and the hot air nozzle 9 is connected to the inside of the drying shell 4; a motor 10 is installed inside the middle shell 3, and a synchronous belt 11 is connected to the top of the motor 10, and the synchronous belt 11 is connected to the hot air nozzle 9; a filter screen mouth 13 and a movable locking ring 14 are connected to the outside of the recovery box 1, and the movable locking ring 14 Two positioning plugs 15 are connected to the top, and the positioning plugs 15 are connected to the recovery box 1 and the filter screen mouth 13; the hot air nozzle 9 is rotatably connected to the inside of the drying shell 4, and the nozzle of the hot air nozzle 9 faces the net bag 6 for containing the contents, and the bottom of the hot air nozzle 9 is rotatably connected to the air outlet end of the hot air blower 7, and the top of the exhaust duct 12 is connected to the top of the middle part of the net bag 6 for containing the contents; a small pulley 1001 is installed on the driving shaft of the motor 10, and a large pulley 901 is arranged at the bottom of the hot air nozzle 9, and the small pulley 1001 is connected to the hot air blower 7. The hot-dip galvanized parts are placed in a surrounding shape inside the net bag 6, and the sealing cover 5 is buckled on the top of the net bag 6. The hot air blower 7 heats the incoming air and transports it to the hot air nozzle 9. The motor 10 drives the hot air nozzle 9 to rotate through the synchronous belt 11. The nozzle of the hot air nozzle 9 blows the hot air in a surrounding shape toward the hot-dip galvanized parts inside the net bag 6. The hot air is then discharged through the exhaust duct 12, so that the hot-dip galvanized parts can be fully dried in a short time.

[0025] In the embodiment of the present disclosure, an exhaust chamber 101, an air intake chamber 102 and a heating chamber 103 are provided inside the recovery box 1, an exhaust port 1011 is provided outside the exhaust chamber 101, the exhaust port 1011 is connected to the external exhaust pipeline, and an air intake port 1021 is provided outside the air intake chamber 102, and the air intake port 1021 is connected to the bottom of the exhaust duct 12.

[0026] In the embodiment of the present disclosure, an air inlet pipe 1031 and an air outlet 1032 are provided outside the heating chamber 103, the air inlet pipe 1031 is connected to the filter screen mouth 13, the air outlet 1032 is connected to the air inlet end of the hot air blower 7 through the air inlet duct 8, the heat exchange tubes 2 are arranged inside the heating chamber 103, the top of the heat exchange tubes 2 are connected to the air inlet chamber 102, and the bottom of the heat exchange tubes 2 are connected to the exhaust chamber 101; By adopting the above technical scheme, the outside air enters the hot air blower 7 through the filter mouth 13, the heating chamber 103 and the air inlet duct 8 in turn, and the hot air discharged from the bottom of the exhaust duct 12 enters the external exhaust pipeline through the air inlet chamber 102, the heat exchange tube 2 and the exhaust chamber 101 in turn and is discharged to the outside. The heat released by the heat exchange tube 2 heats the air circulating in the heating chamber 103, which has the effect of preheating the air entering the hot air blower 7, improves the utilization rate of thermal energy, and enables the hot air blown out by the hot air blower 7 to quickly reach the set heating temperature, effectively saving energy consumption.

[0027] Embodiment 2, on the basis of embodiment 1, the bottom of the filter mouth 13 is inserted into the air inlet pipe 1031, an external connection hole 10311 is provided on the outside of the air inlet pipe 1031, an internal connection hole 1301 is provided at the bottom of the filter mouth 13, the internal connection hole 1301 is connected with the external connection hole 10311, and the positioning plug 15 is slidably inserted into the external connection hole 10311 and the internal connection hole 1301 in a connected state.

[0028] In the embodiment of the present disclosure, the movable locking ring 14 is slidably connected to the outside of the air intake pipe 1031, and oblique sliding holes 1401 are provided at both ends of the top of the movable locking ring 14. A linkage block 1501 is provided on the outside of the positioning plug 15, and the linkage block 1501 is slidably connected to the oblique sliding hole 1401. A spring 16 is sleeved on the outside of the air intake pipe 1031, and the bottom of the spring 16 contacts the air intake pipe 1031, and the top of the spring 16 contacts the bottom of the movable locking ring 14. By adopting the above technical solution, the filter mesh mouth 13 is used to filter the air, so as to ensure the cleanliness of the drying air, thereby ensuring the drying quality of the hot-dip galvanized parts. The filter mesh mouth 13 is connected to the air inlet pipe 1031 by plugging, so that the filter mesh mouth 13 can be removed regularly to clean the intercepted impurities; when the filter mesh mouth 13 is plugged together with the air inlet pipe 1031, the outer connection hole 10311 is connected with the inner connection hole 1301, and the movable locking ring 14 is moved upward by the thrust of the spring 16. , the movable locking ring 14 drives the positioning block 15 to move inward, so that the positioning block 15 is inserted into the inner connecting hole 1301, and the filter mouth 13 is fixed by the positioning block 15; when the filter mouth 13 needs to be removed, the movable locking ring 14 is moved downward, the spring 16 is forced to contract, and the movable locking ring 14 drives the positioning block 15 to move outward, so that the positioning block 15 is separated from the inner connecting hole 1301, and the filter mouth 13 can be removed for cleaning, which is easy to operate.

[0029] The working principle of this embodiment is as follows: first, the hot-dip galvanized parts are placed in a surrounding shape inside the containing net bag 6, and the sealing cover 5 is buckled on the top of the containing net bag 6; the outside air enters the hot air blower 7 through the filter mouth 13, the heating chamber 103 and the air inlet duct 8 in turn, the hot air blower 7 heats the incoming air and transports it to the hot air nozzle 9, the motor 10 drives the hot air nozzle 9 to rotate through the synchronous belt 11, and the nozzle of the hot air nozzle 9 blows the hot air in a surrounding shape to the hot-dip galvanized parts inside the containing net bag 6, and the hot air is then discharged through the exhaust duct 12 to perform hot air drying on the hot-dip galvanized parts; the hot air discharged from the bottom of the exhaust duct 12 enters the external exhaust pipeline through the air inlet cavity 102, the heat exchange tube 2 and the exhaust cavity 101 in turn and is discharged to the outside, and the heat released by the heat exchange tube 2 heats the air circulating in the heating cavity 103, which has the effect of preheating the air entering the hot air blower 7, improving the utilization rate of thermal energy, and making the hot air blown by the hot air blower 7 The hot air discharged can quickly reach the set heating temperature; the air is filtered through the filter mesh mouth 13, and the filter mesh mouth 13 is connected to the intake pipe 1031 by plugging, so that the filter mesh mouth 13 can be removed regularly to clean the intercepted impurities; when the filter mesh mouth 13 is plugged together with the intake pipe 1031, the outer connecting hole 10311 is connected with the inner connecting hole 1301, and the movable locking ring 14 moves upward under the thrust of the spring 16, and the movable locking ring 14 drives the positioning plug 15 to move inward, so that the positioning plug 15 is plugged into the inner connecting hole 1301, and the filter mesh mouth 13 is fixed by the positioning plug 15; when there are too many impurities attached to the outside of the filter mesh mouth 13, the movable locking ring 14 is moved downward, the spring 16 is contracted by force, and the movable locking ring 14 drives the positioning plug 15 to move outward, so that the positioning plug 15 is separated from the inner connecting hole 1301, and the filter mesh mouth 13 can be disassembled for cleaning.

[0030] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0031] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0032] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An energy-saving drying device for hot-dip galvanized parts, comprising: A recycling box (1); a heat exchange tube (2) is installed inside the recycling box (1); a middle shell (3) is connected to the top of the recycling box (1); a drying shell (4) is connected to the top of the middle shell (3); and the drying shell (4) is characterized in that an exhaust duct (12) is fixedly installed outside the drying shell (4); the bottom of the exhaust duct (12) is connected to the recycling box (1); a net bag (6) is placed inside the drying shell (4); the net bag (6) is an annular net groove structure; a sealing cover (5) is buckled on the top of the net bag (6); and the top of the exhaust duct (12) is in contact with the sealing cover (5); a hot air blower (7) is installed inside the middle shell (3); The fan (7) is externally connected to an air intake duct (8), which is connected to a recovery box (1); the top of the hot air blower (7) is connected to a hot air nozzle (9), which is connected to the inside of a drying shell (4); a motor (10) is installed inside the middle shell (3), a synchronous belt (11) is connected to the top of the motor (10), and the synchronous belt (11) is connected to the hot air nozzle (9); the recovery box (1) is externally connected to a filter screen nozzle (13) and a movable locking ring (14), and the top of the movable locking ring (14) is connected to two positioning blocks (15), and the positioning blocks (15) are connected to the recovery box (1) and the filter screen nozzle (13).

2. The energy-saving drying device for hot-dip galvanized parts according to claim 1, characterized in that: The hot air nozzle (9) is rotatably connected to the interior of the drying shell (4), the nozzle of the hot air nozzle (9) faces the containing net bag (6), the bottom of the hot air nozzle (9) is rotatably connected to the air outlet end of the hot air blower (7), and the top of the exhaust duct (12) is connected to the top of the middle part of the containing net bag (6).

3. The energy-saving drying device for hot-dip galvanized parts according to claim 1, characterized in that: A small pulley (1001) is installed on the driving shaft of the motor (10), a large pulley (901) is arranged at the bottom of the hot air nozzle (9), and the small pulley (1001) is connected to the large pulley (901) through a synchronous belt (11).

4. The energy-saving drying device for hot-dip galvanized parts according to claim 1, characterized in that: The recovery box (1) is provided with an exhaust chamber (101), an air intake chamber (102) and a heating chamber (103) inside, an exhaust port (1011) is provided outside the exhaust chamber (101), the exhaust port (1011) is connected to an external exhaust pipeline, and an air intake port (1021) is provided outside the air intake chamber (102), the air intake port (1021) is connected to the bottom of the exhaust duct (12).

5. The energy-saving drying device for hot-dip galvanized parts according to claim 4, characterized in that: An air inlet pipe (1031) and an air outlet (1032) are arranged outside the heating chamber (103); the air inlet pipe (1031) is connected to the filter screen nozzle (13); and the air outlet (1032) is connected to the air inlet end of the hot air blower (7) via an air inlet duct (8).

6. The energy-saving drying device for hot-dip galvanized parts according to claim 4, characterized in that: The heat exchange tubes (2) are arranged in an array inside the heating chamber (103); the top of the heat exchange tube (2) is connected to the air inlet chamber (102); and the bottom of the heat exchange tube (2) is connected to the air outlet chamber (101).

7. The energy-saving drying device for hot-dip galvanized parts according to claim 4, characterized in that: The bottom of the filter mesh nozzle (13) is inserted into the air intake pipe (1031), the air intake pipe (1031) is provided with an external connection hole (10311) on the outside, the bottom of the filter mesh nozzle (13) is provided with an internal connection hole (1301), the internal connection hole (1301) is connected to the external connection hole (10311), and the positioning plug (15) is slidably inserted into the external connection hole (10311) and the internal connection hole (1301) in a connected state.

8. The energy-saving drying device for hot-dip galvanized parts according to claim 7, characterized in that: The movable locking ring (14) is slidably connected to the outside of the air intake pipe (1031), and oblique sliding holes (1401) are provided at both ends of the top of the movable locking ring (14). A linkage block (1501) is provided outside the positioning plug block (15), and the linkage block (1501) is slidably connected to the inside of the oblique sliding hole (1401).

9. The energy-saving drying device for hot-dip galvanized parts according to claim 7, characterized in that: A spring (16) is sleeved on the outside of the air intake pipe (1031), the bottom of the spring (16) is in contact with the air intake pipe (1031), and the top of the spring (16) is in contact with the bottom of the movable locking ring (14).

Images