High-pressure water mist nozzle rotating cleaner

Abstract

The utility model discloses a high-pressure water mist spray nozzle rotating cleaner which comprises a first shell, a second shell, a first water mist nozzle and a second water mist nozzle. The supporting mechanism is arranged on the first shell and supports the periphery of the high-pressure water mist nozzle to be cleaned; the cleaning mechanism is arranged in the first shell, is exposed out of the opening of the first shell and is suitable for comprehensively cleaning the high-pressure water mist nozzle to be cleaned; and the driving mechanism is arranged on the first shell, is connected with the cleaning mechanism and is suitable for driving the cleaning mechanism to rotate so as to rotatably clean the high-pressure water mist nozzle to be cleaned. When the cleaning device is used for cleaning the high-pressure water mist spray head, the supporting mechanism is supported on the periphery of the high-pressure water mist spray head, so that the high-pressure water mist spray head corresponds to the cleaning mechanism at the opening of the first shell, and the high-pressure water mist spray head can be conveniently cleaned in all directions through the cleaning mechanism; and corrosion caused by hydrogen phosphide remaining on the surface of the spray head is avoided, and the service life of the spray head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a high-pressure fine water mist nozzle rotary cleaner. Background Art

[0002] High-pressure fine water mist nozzle is an atomizing nozzle that can refine water molecules to the micron level. Its atomization effect can reach more than 99%. It has a wide range of applications in cooling, wetting, dust removal, etc. Water mist dust collector is a device that uses water mist as a capture medium to purify the flue gas by flushing and intercepting the particles in the flue gas. When the flue gas passes through the water curtain, due to the inertia and centrifugal force, the particles will be separated and collide with the water droplets, and be intercepted on the water surface or settle to the bottom. At the same time, due to the interaction between the water droplets and the particles, such as electrostatic force and chemical reaction, the capture effect can also be enhanced. High-pressure fine water mist fire extinguishing system nozzles are an important part of fire protection facilities in modern buildings and industrial sites. They effectively suppress and extinguish fires by spraying extremely fine water mist. The selection and configuration of high-pressure fine water mist fire extinguishing system nozzles are crucial to the performance of the system.

[0003] Due to the storage requirements of cigarette raw materials, tobacco beetles and other pests that may cause damage to the quality of cigarette raw materials may appear in the warehouse. Tobacco beetles need to be disinfected regularly. The commonly used insecticide is phosphine. The existing high-pressure fine water mist nozzles will be corroded after using phosphine to kill insects. The accumulation of corrosive liquid will cause the high-pressure fine water mist nozzles to corrode and drip. Only the corrosive liquid after corrosion is cleaned, which is not convenient for cleaning the high-pressure fine water mist nozzles that have not been corroded after using phosphine to kill insects, affecting the service life of the high-pressure fine water mist nozzles. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the existing high-pressure fine water mist nozzle usually performs comprehensive cleaning and affects the service life, thereby providing a high-pressure fine water mist nozzle rotary cleaner.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-pressure fine water mist nozzle rotary cleaner, comprising:

[0007] A first shell, wherein the bottom end of the first shell is provided with an opening;

[0008] A supporting mechanism, the supporting mechanism is arranged on the first shell and supported on the periphery of the high-pressure fine water mist nozzle to be cleaned;

[0009] A cleaning mechanism, the cleaning mechanism is arranged inside the first shell and exposed from the opening of the first shell, the cleaning mechanism is suitable for completely contacting with the high-pressure fine water mist nozzle to be cleaned and performing comprehensive cleaning on the high-pressure fine water mist nozzle to be cleaned;

[0010] The driving mechanism is arranged on the first shell and connected to the cleaning mechanism, and the driving mechanism is suitable for driving the cleaning mechanism to rotate so as to perform rotational cleaning on the high-pressure fine water mist nozzle to be cleaned.

[0011] Further optimizing the technical solution, the cleaning mechanism includes:

[0012] A rotating ring, the rotating ring is rotatably arranged inside the first shell, and an outer side wall of the rotating ring is provided with a rotating protrusion rotatably connected to the rotating groove;

[0013] A mounting base, the mounting base is connected to the driving mechanism and is detachably disposed inside the rotating ring;

[0014] A soft cleaning cloth is arranged at the bottom of the mounting base and is located inside the rotating ring.

[0015] To further optimize the technical solution, the first shell is configured to be an annular cylinder, and a rotation groove is provided on the inner wall of the first shell.

[0016] Further optimizing the technical solution, the driving mechanism includes:

[0017] A second shell, the second shell is connected to the top of the first shell;

[0018] The motor has a fixed end fixedly disposed inside the second housing, and an output shaft end of the motor is fixedly connected to a mounting base.

[0019] To further optimize the technical solution, a mounting groove is provided on the top of the first shell, and the second shell is inserted and positioned in the mounting groove.

[0020] To further optimize the technical solution, at least one positioning hole is formed on the top surface of the first shell, and a positioning component inserted into the positioning hole is provided on the second shell.

[0021] Further optimizing the technical solution, the positioning component includes:

[0022] At least one fixed block, wherein the fixed block is provided with a lifting slot;

[0023] At least one limiting rod, the limiting rod comprises a vertical rod and a horizontal rod which are perpendicular to each other, the vertical rod can be inserted and positioned inside the positioning hole, and the horizontal rod extends from the lifting groove and can slide up and down along the lifting groove.

[0024] To further optimize the technical solution, at least one heat dissipation groove is provided on the surface of the second shell.

[0025] To further optimize the technical solution, a handle is fixedly connected to the top of the second shell.

[0026] To further optimize the technical solution, the support mechanism includes:

[0027] At least two support blocks, wherein the support blocks are fixedly disposed at the bottom of the first housing;

[0028] At least two threaded rods, the threaded rods vertically pass through the support block and are threadedly connected to the support block, the top of the threaded rod is fixedly connected to the handle, the bottom of the threaded rod is threadedly connected to the extension rod, and the bottom of the extension rod is fixedly connected to the support base plate.

[0029] The technical solution of the utility model has the following advantages:

[0030] 1. The utility model provides a high-pressure fine water mist nozzle rotary cleaner. When cleaning the high-pressure fine water mist nozzle, the supporting mechanism is provided to support the periphery of the high-pressure fine water mist nozzle, so that the high-pressure fine water mist nozzle corresponds to the cleaning mechanism at the opening of the first shell, and then the high-pressure fine water mist nozzle can be cleaned in all directions very conveniently through the cleaning mechanism, avoiding corrosion caused by phosphine residue on the surface of the nozzle, and improving the service life of the nozzle. In addition, the overall structure of the utility model equipment is simple, and it is convenient for staff to carry.

[0031] 2. The utility model provides a high-pressure fine water mist nozzle rotary cleaner, which can conveniently clean the high-pressure fine water mist nozzle by using a driving mechanism to drive the mounting base, the rotating ring and the cleaning soft cloth to rotate synchronously. The mounting base can be fixed by the driving mechanism, and the mounting base is driven to rotate by the driving mechanism, thereby driving the rotating ring and the cleaning soft cloth to rotate, and the bottom of the cleaning soft cloth is exposed from the opening of the first shell, and then the high-pressure fine water mist nozzle is cleaned by the cleaning soft cloth, which is convenient for rotating and wiping the phosphine remaining on the surface of the high-pressure fine water mist nozzle after use.

[0032] 3. The utility model provides a high-pressure fine water mist nozzle rotary cleaner, wherein the surface of the second shell is provided with at least one heat dissipation groove, which is convenient for dissipating heat of the motor that works for a long time.

[0033] 4. The utility model provides a high-pressure fine water mist nozzle rotary cleaner, and a handle is fixedly connected to the top of the second shell, which is convenient for people to hold by hand when disassembling or installing the second shell.

[0034] 5. The utility model provides a high-pressure fine water mist nozzle rotary cleaner. The threaded rod can cooperate with the internal extension rod to rotate the thread to extend the distance between the threaded rod and the threaded rod, which is convenient for adjustment according to the actual operation position. By rotating the threaded rod and the extension rod, it is convenient to adjust the height of the entire device and the ground, which brings convenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0037] Figure 2 This is a schematic diagram of the anatomical structure of the first shell of the utility model;

[0038] Figure 3 This is a schematic diagram of the installation base structure of the utility model;

[0039] Figure 4 This is a schematic diagram of the shell split structure of the utility model.

[0040] Reference numerals:

[0041] 1. Cleaning mechanism; 101. Rotating ring; 102. Mounting base; 103. Cleaning soft cloth; 2. Driving mechanism; 201. Second shell; 202. Handle; 203. Heat dissipation slot; 204. Fixed block; 205. Lifting slot; 206. Limit rod; 207. Motor; 3. Support mechanism; 301. Support block; 302. Threaded rod; 303. Turning handle; 304. Extension rod; 305. Support base plate; 4. First shell; 401. Positioning hole; 402. Mounting slot; 403. Rotating slot. DETAILED DESCRIPTION

[0042] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0043] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Combination Figures 1 to 4 As shown, the present embodiment discloses a high-pressure fine water mist nozzle rotary cleaner, including a first shell 4, a supporting mechanism 3, a cleaning mechanism 1 and a driving mechanism 2. An opening is provided at the bottom end of the first shell 4, and the provided opening enables the high-pressure fine water mist nozzle to partially enter the interior thereof when cleaning the high-pressure fine water mist nozzle. The supporting mechanism 3 is provided on the first shell 4 and supported on the periphery of the high-pressure fine water mist nozzle to be cleaned. The cleaning mechanism 1 is provided inside the first shell 4 and exposed from the opening of the first shell 4, and the cleaning mechanism 1 is suitable for fully contacting with the high-pressure fine water mist nozzle to be cleaned and performing comprehensive cleaning on the high-pressure fine water mist nozzle to be cleaned. The driving mechanism 2 is provided on the first shell 4 and connected to the cleaning mechanism 1, and the driving mechanism 2 is suitable for driving the cleaning mechanism 1 to rotate so as to perform rotational cleaning on the high-pressure fine water mist nozzle to be cleaned.

[0047] The above-mentioned high-pressure fine water mist nozzle rotary cleaner, when cleaning the high-pressure fine water mist nozzle, is supported on the periphery of the high-pressure fine water mist nozzle by the provided supporting mechanism 3, so that the high-pressure fine water mist nozzle corresponds to the cleaning mechanism 1 at the opening on the first shell 4, and then the high-pressure fine water mist nozzle can be very conveniently cleaned in all directions through the cleaning mechanism 1, thereby avoiding corrosion caused by residual phosphine on the surface of the nozzle, thereby increasing the service life of the nozzle, and the overall structure of the equipment is simple, which is convenient for the staff to carry.

[0048] In some embodiments, the cleaning mechanism 1 includes a rotating ring 101, a mounting base 102, and a cleaning soft cloth 103. The rotating ring 101 is rotatably arranged inside the first housing 4. The mounting base 102 is connected to the driving mechanism 2 and is arranged inside the rotating ring 101. The cleaning soft cloth 103 is fixedly arranged at the bottom of the mounting base 102, and the cleaning soft cloth 103 is located inside the rotating ring 101.

[0049] The mounting base 102 is threadedly connected to the top of the rotating ring 101, and the thread can be disassembled through the mounting base 102 at the top of the rotating ring 101, so that the material and size of the cleaning soft cloth 103 can be replaced according to the actual product size.

[0050] In this embodiment, the high-pressure fine water mist nozzle can be cleaned very conveniently by using the driving mechanism 2 to drive the mounting base 102, the rotating ring 101 and the cleaning soft cloth 103 to rotate synchronously. In this embodiment, the mounting base 102 can be fixed by the driving mechanism 2, and the mounting base 102 is driven to rotate by the driving mechanism 2, thereby driving the rotating ring 101 and the cleaning soft cloth 103 to rotate, and the bottom of the cleaning soft cloth 103 is exposed from the opening of the first shell 4, and then the high-pressure fine water mist nozzle is cleaned by the cleaning soft cloth 103, so that the phosphine remaining on the surface of the high-pressure fine water mist nozzle after use can be wiped by rotation.

[0051] In some embodiments, the first housing 4 is configured to be annular, and a rotation groove 403 is provided on the inner wall of the first housing 4. A rotation protrusion rotatably connected to the rotation groove 403 is provided on the outer wall of the rotating ring 101. More specifically, at least one rotation protrusion is provided, and at least one rotation groove 403 is provided. The rotation protrusion is rotatably provided in the rotation groove 403, so that the driving mechanism 2 can rotate relative to the first housing 4, so that the motor 207 drives the mounting base 102 and the rotating ring 101 to rotate inside the rotation groove 403.

[0052] As a specific embodiment, the number of the rotation grooves 403 is set to two, and the number of the rotation protrusions is also set to two. In addition, the number of the rotation grooves 403 and the rotation protrusions can also be set to other numbers.

[0053] In some embodiments, the driving mechanism 2 includes a second housing 201 and a motor 207. The second housing 201 is connected to the top of the first housing 4. The fixed end of the motor 207 is fixedly disposed inside the second housing 201, and the output shaft end of the motor 207 is fixedly connected to the mounting base 102.

[0054] In this embodiment, when the motor 207 is started, the motor 207 drives the mounting base 102 connected thereto to rotate, and further drives the cleaning soft cloth 103 connected to the mounting base 102 to rotate. Since the second housing 201 and the first housing 4 in this embodiment are detachable, the overall disassembly of the device is very convenient, and the internal components of the first housing 4 and the second housing 201 can be replaced very conveniently.

[0055] In some embodiments, a mounting groove 402 is provided at the top of the first housing 4, and the second housing 201 is inserted and positioned in the mounting groove 402. In this embodiment, the first housing 4 and the second housing 201 are inserted and positioned in a manner so that the first housing 4 and the second housing 201 can be easily disassembled. An internal thread is also provided on the inner wall of the mounting groove 402, and an external thread is provided on the bottom end of the outer wall of the second housing 201, and the bottom end of the second housing 201 is threadedly connected to the first housing 4.

[0056] In some embodiments, at least one positioning hole 401 is formed on the top surface of the first housing 4, and a positioning component inserted into the positioning hole 401 is provided on the second housing 201. In this embodiment, the second housing 201 is inserted and positioned in the positioning hole 401 of the first housing 4 by the positioning component, and when the second housing 201 needs to be disassembled, the positioning component can be directly pulled out, which enhances the convenience of device installation.

[0057] When a plurality of positioning holes 401 are provided, the positioning holes 401 are symmetrically distributed with the first housing 4 as the center.

[0058] In some embodiments, the positioning assembly includes a fixed block 204 and a limiting rod 206. At least one fixed block 204 is provided, and the fixed block 204 is arranged on the surface of the second housing 201, and a lifting slot 205 is provided on the fixed block 204. At least one limiting rod 206 is provided, and the limiting rod 206 includes a vertical rod and a horizontal rod perpendicular to each other, the vertical rod can be inserted and positioned inside the positioning hole 401, and the horizontal rod extends from the lifting slot 205 and can slide up and down along the lifting slot 205.

[0059] In this embodiment, the first housing 4 is provided with a positioning hole 401 and a mounting groove 402 at the top, so that the staff can install and fix the second housing 201 at the top. When the second housing 201 needs to be removed from the first housing 4, the limiting rod 206 can be directly pulled upward to move the limiting rod 206 upward along the lifting groove 205, so that the limiting rod 206 is separated from the positioning hole 401, and then the second housing 201 can be directly pulled upward to separate the second housing 201 from the first housing 4. When the second housing 201 needs to be positioned on the first housing 4, the second housing 201 is moved to the top of the first housing 4, the bottom wall of the second housing 201 is inserted into the mounting groove 402, and the limiting rod 206 is aligned with the positioning hole 401, and the limiting rod 206 is inserted into the positioning hole 401, so as to realize the positioning of the second housing 201 and the first housing 4. Therefore, the positioning between the second housing 201 and the first housing 4 is controlled by the lifting and lowering of the limiting rod 206.

[0060] As a specific embodiment, the number of the fixing blocks 204 is set to four, and two adjacent fixing blocks 204 are connected by an annular connecting plate, and the fixing blocks 204 are symmetrically distributed around the second housing 201. Correspondingly, four limiting rods 206 are provided.

[0061] In some embodiments, at least one heat dissipation slot 203 is formed on the surface of the second housing 201 to dissipate heat for the motor 207 that works for a long time.

[0062] In some embodiments, a handle 202 is fixedly connected to the top of the second shell 201 to facilitate holding by hand when disassembling or installing the second shell 201 .

[0063] In some embodiments, the support mechanism 3 includes a support block 301, a threaded rod 302, and a support base plate 305. At least two support blocks 301 are provided, and the support blocks 301 are fixedly provided at the bottom of the first housing 4, and the support blocks 301 are symmetrically distributed with the first housing 4 as the center. At least two threaded rods 302 are provided, and the threaded rods 302 vertically pass through the support block 301 and are threadedly connected to the support block 301, and the top of the threaded rod 302 is fixedly connected to the handle 303, and the bottom of the threaded rod 302 is threadedly connected to the extension rod 304, and the extension rod 304 is threadedly connected to the inside of the threaded rod 302, and the bottom of the extension rod 304 is fixedly connected to the support base plate 305.

[0064] In this embodiment, the height of the entire device can be adjusted by the support mechanism 3. The specific adjustment process is: rotate the extension rod 304 to extend or shorten the extension rod 304; or rotate the threaded rod 302 to move the threaded rod 302 upward or downward to lift the threaded rod 302. In this embodiment, the threaded rod 302 can cooperate with the internal extension rod 304 to rotate the thread to extend the distance between the threaded rod 302, so as to facilitate adjustment according to the actual operating position. By rotating the threaded rod 302 and the extension rod 304, it is convenient to adjust the height of the entire device and the ground, which brings convenience to the staff.

[0065] The specific operation process of the above-mentioned high-pressure fine water mist nozzle rotary cleaner is as follows:

[0066] Place the device in a suitable position, install the second housing 201 into the installation slot 402, rotate the second housing 201 to fix the output shaft end of the motor to the installation base 102. Insert the limiting rod 206 into the positioning hole 401 to position the second housing 201 on the first housing 4.

[0067] The motor 207 is started, and the motor 207 drives the mounting base 102, the rotating ring 101, and the cleaning soft cloth 103 to rotate, so as to wipe the residual phosphine on the surface of the high-pressure fine water spray head after use, so as to avoid corrosion caused by the residual phosphine on the surface of the nozzle, thereby increasing the service life of the nozzle.

[0068] When the height of the entire device needs to be adjusted, the extension rod 304 can be rotated to extend or shorten the extension rod 304, or the threaded rod 302 can be rotated to allow the threaded rod 302 to drive the extension rod 304 and the support base plate 305 to adjust the height, which is convenient for adjusting the height of the entire equipment and the ground, and brings convenience to the staff.

[0069] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A high-pressure water mist nozzle rotary cleaner, characterized in that: include: A first shell (4), wherein the bottom end of the first shell (4) is provided with an opening; A supporting mechanism (3), wherein the supporting mechanism (3) is arranged on the first shell (4) and supported on the periphery of the high-pressure fine water mist nozzle to be cleaned; A cleaning mechanism (1), the cleaning mechanism (1) being arranged inside the first shell (4) and exposed from the opening of the first shell (4), the cleaning mechanism (1) being adapted to be in full contact with the high-pressure fine water mist nozzle to be cleaned and to perform comprehensive cleaning on the high-pressure fine water mist nozzle to be cleaned; A driving mechanism (2) is arranged on the first shell (4) and connected to the cleaning mechanism (1), and the driving mechanism (2) is suitable for driving the cleaning mechanism (1) to rotate so as to perform rotational cleaning on the high-pressure fine water mist nozzle to be cleaned.

2. The high-pressure water mist nozzle rotary cleaner according to claim 1, characterized in that: The cleaning mechanism (1) comprises: A rotating ring (101), the rotating ring (101) being rotatably arranged inside the first shell (4); A mounting base (102), the mounting base (102) being connected to the driving mechanism (2) and being detachably disposed inside the rotating ring (101); A cleaning soft cloth (103), wherein the cleaning soft cloth (103) is arranged at the bottom of the mounting base (102), and the cleaning soft cloth (103) is located inside the rotating ring (101).

3. The high-pressure water mist nozzle rotary cleaner according to claim 2, characterized in that: The first shell (4) is arranged in a cylindrical shape, and a rotation groove (403) is provided on the inner wall of the first shell (4); a rotation protrusion rotatably connected to the rotation groove (403) is provided on the outer wall of the rotation ring (101).

4. The high-pressure water mist nozzle rotary cleaner according to claim 2, characterized in that: The driving mechanism (2) comprises: A second shell (201), the second shell (201) being connected to the top of the first shell (4); A motor (207), wherein the fixed end of the motor (207) is fixedly disposed inside the second housing (201), and the output shaft end of the motor (207) is fixedly connected to the mounting base (102).

5. The high-pressure water mist nozzle rotary cleaner according to claim 4, characterized in that: The top of the first shell (4) is provided with a mounting groove (402), and the second shell (201) is inserted and positioned in the mounting groove (402).

6. The high-pressure water mist nozzle rotary cleaner according to claim 4, characterized in that: At least one positioning hole (401) is provided on the top end surface of the first shell (4), and a positioning component inserted into the positioning hole (401) is provided on the second shell (201).

7. The high-pressure water mist nozzle rotary cleaner according to claim 6, characterized in that: The positioning component comprises: At least one fixed block (204), wherein a lifting slot (205) is provided on the fixed block (204); At least one limiting rod (206), the limiting rod (206) comprising a vertical rod and a horizontal rod perpendicular to each other, the vertical rod being insertable and positionable inside the positioning hole (401), and the horizontal rod extending from the lifting groove (205) and being able to slide up and down along the lifting groove (205).

8. The high-pressure water mist nozzle rotary cleaner according to claim 4, characterized in that: At least one heat dissipation groove (203) is provided on the surface of the second shell (201).

9. The high-pressure water mist nozzle rotary cleaner according to claim 4, characterized in that: A handle (202) is fixedly connected to the top of the second shell (201).

10. The high-pressure fine water mist nozzle rotary cleaner according to any one of claims 1 to 9, characterized in that: The supporting mechanism (3) comprises: At least two support blocks (301), wherein the support blocks (301) are fixedly arranged at the bottom of the first shell (4); At least two threaded rods (302), the threaded rods (302) vertically passing through the support block (301) and being threadedly connected to the support block (301), the top of the threaded rod (302) being fixedly connected to a turning handle (303), the bottom of the threaded rod (302) being threadedly connected to an extension rod (304), and the bottom of the extension rod (304) being fixedly connected to a support base plate (305).

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