CN111851451B

CN111851451B - River channel treatment garbage interception treatment method

Info

Publication number: CN111851451B
Application number: CN202010760196.XA
Authority: CN
Inventors: 张汀仁; 范文祥
Original assignee: Hunan Bohui Engineering Project Management Co ltd
Current assignee: Hunan Bohui Engineering Project Management Co.,Ltd.
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-20
Anticipated expiration: 2040-07-31
Also published as: CN111851451A

Abstract

The invention relates to a river channel treatment garbage intercepting treatment method, which relates to the technical field of river garbage treatment and uses river channel garbage treatment intercepting equipment. The invention has the effects of higher efficiency and lower labor intensity when treating the garbage in the river channel.

Description

River channel treatment garbage interception treatment method

Technical Field

The invention relates to the technical field of river garbage treatment, in particular to a river channel treatment garbage interception treatment method.

Background

In municipal planning and construction of cities, in order to achieve beautiful urban landscapes and improve urban environments, artificial lakes and artificial rivers are always constructed in the urban planning and construction, and the artificial lakes and the artificial rivers are more and more favored by people due to good effects of improving landscape effects, improving air humidity and the like.

Due to artificial discarding and rain washing, the river channel is often filled with some garbage, such as household garbage, tree hay and the like, and the garbage brings great influence on normal circulation of the river channel and attractiveness of the river channel; when rubbish is handled in current river course, often need the environmental protection workman to take the boat to use the scoop net to salvage the rubbish that floats on the river face, but this kind of operation mode can only one in the in-process of salvaging salvage to come to salvage, salvage the effect relatively poor, in addition, higher, the intensity of labour great to environmental protection workman's requirement, so still have the space that can improve when handling to rubbish in the city river course.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a river channel treatment garbage interception treatment method which has the effects of higher efficiency and lower labor intensity when treating garbage in a river channel.

The above object of the present invention is achieved by the following technical solutions:

a river channel treatment garbage intercepting treatment method uses river channel garbage treatment intercepting equipment which comprises a garbage intercepting frame, a garbage picking device and a garbage transferring device, wherein the garbage intercepting frame is used for fixing the garbage picking device, and the garbage transferring device transfers picked garbage to prevent the garbage from causing secondary pollution to a river channel;

the garbage intercepting frame comprises three fixed stand columns, three intercepting cross rods and an inclined supporting rod, wherein the fixed stand columns are fixedly connected with the end parts of the inclined supporting rod to form a herringbone supporting structure, the fixed stand columns and the inclined supporting rod are inserted into a river channel, the connecting ends of the fixed stand columns and the inclined supporting rod are higher than the liquid level of the river channel, the herringbone supporting structure is arranged at two ends of the intercepting cross rods, and the end parts of the intercepting cross rods are connected with the fixed stand columns and the inclined supporting rod;

the garbage picking device comprises a driving motor, a driving gear, a filter screen, a driving rack and a tensioning frame, wherein the driving motor and the driving gear are arranged on an intercepting cross rod, an output shaft of the driving motor is meshed with the driving gear to drive the driving gear to rotate, the filter screen is sleeved on the intercepting cross rod, the driving rack is arranged on the inner side wall of the filter screen and is meshed with the driving gear, and the tensioning frame is arranged on the intercepting cross rod and is abutted against the inner side wall of the filter screen to tension the filter screen;

the garbage transfer device comprises a floating plate, a bearing frame, a connecting block, a connecting port and a connecting bulge, wherein the floating plate is arranged in a river channel, the bearing frame is arranged on the floating plate to bear garbage filtered on a filter screen, the connecting block is rotatably connected to the floating plate, the connecting port is arranged at one end, far away from the floating plate, of the connecting block, and the connecting bulge is integrally arranged on an inclined supporting rod and is clamped with the connecting port to fix the bearing frame;

the river channel treatment garbage intercepting treatment method utilizing the river channel garbage treatment intercepting equipment comprises the following steps:

s1: installing and debugging, namely installing a related garbage intercepting frame, a garbage picking device and a garbage transferring device into a river channel and debugging equipment to a working state;

s2: the garbage blocking is that the garbage in the river water flowing through the garbage blocking frame is filtered and blocked by the filter screen through the mutual matching of the garbage blocking frame and the filter screen, so that the garbage is difficult to flow downstream from the garbage blocking frame;

s3: the garbage collection step comprises the steps that a driving motor is started to drive a driving gear to rotate, the driving gear is matched with a driving rack to drive a filter screen to rotate on an intercepting cross rod, and garbage flowing through the filter screen can fall into a receiving frame through the filter screen after the filter screen rotates;

s4: and garbage transfer, namely transferring the garbage falling into the bearing frame out of the bearing frame after the bearing frame is filled with the garbage, so as to prevent the secondary pollution of the river channel caused by the garbage in the bearing frame.

As a preferred technical scheme of the invention, the intercepting cross rod comprises a first mounting rod and a second mounting rod, the end parts of the first mounting rod and the second mounting rod are respectively connected with the fixed upright post and the inclined support rod, the first mounting rod is sleeved on the second mounting rod, the first mounting rod is provided with a plurality of elastic contact pieces which are in sliding contact with the outer surface of the second mounting rod, the elastic contact pieces are provided with a plurality of clamping holes, and the second mounting rod is integrally provided with a clamping block which is clamped and limited with the clamping holes.

As a preferred technical scheme, the tensioning frame comprises a first threaded rod, a second threaded rod, a threaded sleeve and a rotating roller, the first threaded rod is arranged on the first mounting rod or the second mounting rod through a bolt, one end of the threaded sleeve is in threaded connection with the first threaded rod, the other end of the threaded sleeve is in threaded fixation with the second threaded rod, the thread directions of the first threaded rod and the second threaded rod are opposite, and the rotating roller is rotationally connected to the second threaded rod and is abutted against the inner side of the filter screen.

As a preferred technical scheme of the invention, a plurality of bulges are arranged on the outer surface of the threaded sleeve and are held by an operator so as to facilitate the rotation of the threaded sleeve.

As a preferred technical scheme, a plurality of transverse placing plates are arranged on the outer surface of the filter screen and are in contact with the garbage in the river channel to drive the garbage in the river channel to move on the filter screen.

As a preferred technical solution of the present invention, the receiving frame is provided with a material guiding device abutting against the filter screen, the material guiding device includes a first material guiding plate, a second material guiding plate, an elastic connecting block, a clamping protrusion and a clamping opening, the first material guiding plate is obliquely arranged on the receiving frame, the second material guiding plate is inserted into the first material guiding plate and slidably abuts against the filter screen, the first material guiding plate is provided with a sliding chute for the second material guiding plate to be inserted and slid, the elastic connecting block is symmetrically and integrally arranged on the second material guiding plate and slidably abuts against a side wall of the sliding chute on the first material guiding plate, the clamping protrusion is integrally arranged at one end of the elastic connecting block far from the second material guiding plate and slidably abuts against a side wall of the sliding chute, the clamping opening is arranged on the first material guiding plate and clamped with the clamping protrusion, and the clamping opening is uniformly provided with a plurality of material guiding devices.

In summary, the invention includes at least one of the following beneficial technical effects:

1. in the actual use process, the garbage interception frame, the garbage pickup device and the garbage transfer device are matched with each other, so that the garbage in the river channel can be intercepted quickly, and the intercepted garbage can be treated, the whole operation process is mechanized, environment-friendly workers do not need to catch the garbage one by one, the treatment efficiency of the garbage treatment is improved, the working intensity of the workers is reduced, and the good effect of treating the river channel garbage is achieved;

2. the intercepting cross rod is arranged through the first mounting rod and the second mounting rod, and in the actual use process, the width of an actual river channel can be adapted through the relative length of the first mounting rod and the second mounting rod, so that the applicability of the device is improved;

3. the setting of guide device, at the in-process of in-service use, can guarantee that more rubbish on the filter screen drops to accepting the frame through the guide device on, reduces rubbish and drops the secondary pollution who causes the river course in the river course, improves the device to refuse treatment's efficiency.

Drawings

FIG. 1 is a flow chart of the present invention.

Fig. 2 is a schematic structural diagram of the main body of the garbage intercepting frame, the garbage picking device and the garbage transferring device.

Fig. 3 is a schematic structural view of a garbage intercepting frame.

Fig. 4 is a schematic structural diagram of the garbage picking device.

Fig. 5 is a schematic view of the construction of the intercepting crossbar.

Fig. 6 is a schematic structural view of the tension frame.

Fig. 7 is a schematic structural diagram of the refuse transfer device.

Fig. 8 is a schematic structural view of the material guide device.

In the figure, 1, a garbage intercepting frame; 2. a waste pick-up device; 3. a refuse transfer device; 11. fixing the upright post; 12. intercepting a cross bar; 13. inclining the support rod; 21. a drive motor; 22. a drive gear; 23. a filter screen; 24. a drive rack; 25. a tension frame; 31. a floating plate; 32. a bearing frame; 33. connecting blocks; 34. a connecting port; 35. a connecting projection; 121. a first threaded rod; 122. a second threaded rod; 123. a threaded sleeve; 124. a rotating roller; 1231. a protrusion; 231. a transverse placing plate; 4. a material guiding device; 41. a first material guide plate; 42. a second material guide plate; 43. an elastic connecting block; 44. clamping the bulges; 45. a card interface; 251. a first mounting bar; 252. a second mounting bar; 253. a clamping block; 254. a clamping hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the river channel treatment garbage intercepting method disclosed by the invention uses a river channel garbage treatment intercepting device, which comprises a garbage intercepting frame 1, a garbage pickup device 2 and a garbage transfer device 3, wherein the garbage intercepting frame 1 is used for fixing the garbage pickup device 2, and the garbage transfer device 3 transfers picked garbage to prevent the garbage from causing secondary pollution to the river channel; through mutually supporting of rubbish interception frame 1, rubbish pickup assembly 2 and rubbish transfer device 3, rubbish to in the river course that can be quick is intercepted and is handled the rubbish of interception, and the process of whole operation is mechanized and operates, does not need environmental protection workman to one by one catching of rubbish, has alleviateed workman's working strength when improving the treatment effeciency to refuse treatment, has good effect on handling river course rubbish.

Referring to fig. 3, the garbage intercepting frame 1 includes a fixed upright 11, an intercepting crossbar 12, and an inclined support bar 13; in this embodiment, the fixed upright post 11, the intercepting cross bar 12 and the inclined support bar 13 are all cylindrical structures made of metal materials, the end portions of the fixed upright post 11 and the inclined support bar 13 are fixedly connected to form a herringbone support structure, the fixed upright post 11 and the inclined support bar 13 are inserted into a river channel, and the connecting end of the fixed upright post 11 and the inclined support bar 13 is higher than the liquid level of the river channel; the V-shaped supporting structures are arranged at two ends of the intercepting cross bar 12, and the intercepting cross bar 12 is provided with three parts, and the end parts of the three parts are connected with the fixed upright post 11 and the inclined supporting bar 13.

Referring to fig. 4, the garbage picking apparatus 2 includes a driving motor 21, a driving gear 22, a filtering net 23, a driving rack 24 and a tension frame 25; the driving motor 21 and the driving gear 22 are both arranged on the intercepting rail 12, an output shaft of the driving motor 21 is meshed with the driving gear 22 to drive the driving gear 22 to rotate, the filtering screen 23 is sleeved on the intercepting rail 12, the driving rack 24 is arranged on the inner side wall of the filtering screen 23 and is meshed with the driving gear 22, and the tensioning frame 25 is arranged on the intercepting rail 12 and is abutted against the inner side wall of the filtering screen 23 to tension the filtering screen 23; in actual operation's in-process, install filter screen 23 to interception horizontal pole 12 on to spreading the tensioning with filter screen 23 through tensioning frame 25, opening driving motor 21, through driving motor 21's drive, can promoting the transfer through filter screen 23 with the river course rubbish that flows through filter screen 23 department, it can to fall to rubbish in the river course among the rubbish device conveyer.

Continuing to refer to fig. 1, fig. 4, in order to improve the efficiency that filter screen 23 transported river course rubbish, the surface is equipped with a plurality of article diaphragms 231 on filter screen 23, and article diaphragms 231 and the rubbish contact in the river course in order to drive the rubbish in the river course and move on filter screen 23, prevents that river course rubbish from dropping from filter screen 23 to improve the efficiency that filter screen 23 transported river course rubbish.

Referring to fig. 5, in order to facilitate the installation of the garbage intercepting apparatus, the intercepting rail 12 is configured to be detachable, and the detachable mode has the following specific structure:

the intercepting cross rod 12 comprises a first installation rod 251 and a second installation rod 252, the end parts of the first installation rod 251 and the second installation rod 252 are respectively connected with the fixed upright post 11 and the inclined support rod 13, the first installation rod 251 is sleeved on the second installation rod 252, a plurality of elastic contact pieces which are in sliding contact with the outer surface of the second installation rod 252 are arranged on the first installation rod 251, a plurality of clamping holes 254 are formed in the elastic contact pieces, and a clamping block 253 which is clamped and limited with the clamping holes 254 is integrally arranged on the second installation rod 252. In the process of actual operation, earlier locate filter screen 23 inner chamber with first installation pole 251 and second installation pole 252 cover, locate first installation on first installation pole 251 according to the cover to make on the elastic conflict piece joint of first installation pole 251 to the joint piece 253 on the second installation pole 252, thereby can install interception horizontal pole 12 and filter screen 23, and convenient operation is swift, improves the efficiency of actual installation.

Referring to fig. 6, the tension frame 25 includes a first threaded rod 121, a second threaded rod 122, a threaded sleeve 123, and a rotating roller 124; first threaded rod 121 is fixed in on first installation pole or the second installation pole, threaded bush 123 one end and first threaded rod 121 threaded connection, and threaded bush 123 other end and second threaded rod 122 threaded connection, first threaded rod 121 and the opposite direction of the screw thread of second threaded rod 122, live-rollers 124 rotate and connect on second threaded rod 122 and with filter screen 23 inboard emergence conflict. In the actual operation process, after the intercepting cross bar 12 is installed, the thread bushing 123 is respectively fixed to the second threaded rod 122 and the second threaded rod 122 in a thread manner, and then the thread bushing 123 is rotated to drive the first threaded rod 121 and the second threaded rod 122 to be away from or close to each other, so that the rotating roller 124 is driven to squeeze the filter screen 23 tightly, and the effect of tensioning the filter screen 23 is achieved.

With continued reference to fig. 6, in order to facilitate the rotation of the threaded sleeve 123, a plurality of protrusions 1231 are disposed on the outer surface of the threaded sleeve 123, and the protrusions 1231 are held by the operator to facilitate the rotation of the threaded sleeve 123. The arrangement of the protrusion 1231 increases the friction between the hand and the threaded sleeve 123 when the operator rotates the threaded sleeve 123, so that the threaded sleeve 123 can be rotated more conveniently, and the efficiency of actual operation is improved.

Referring to fig. 7, the garbage transferring device 3 includes a floating plate 31, a receiving frame 32, a connecting block 33, a connecting port 34, and a connecting protrusion 35; the floating plate 31 may be a floating boat, a foam plate, or other plate-like structure with floating effect, in this embodiment, the floating plate 31 is made of a foam plate; the floating plate 31 is arranged in a river channel, the receiving frame 32 is arranged on the floating plate 31 to receive the garbage filtered on the filter screen 23, the connecting block 33 is rotatably connected on the floating plate 31, the connecting port 34 is arranged at one end of the connecting block 33 far away from the floating plate 31, and the connecting protrusion 35 is integrally arranged on the inclined supporting rod 13 and clamped with the connecting port 34 to fix the receiving frame 32. In the actual operation process, the floating plate 31 is fixed on the inclined supporting rod 13 through the clamping connection of the connecting port 34 on the connecting block 33 and the connecting protrusion 35, and the filter screen 23 can be taken to the bearing frame 32 on the floating plate 31 in the rotating process, so that the river channel garbage is treated.

Referring to fig. 8, in order to improve the effect of the garbage falling onto the receiving frame 32, the receiving frame 32 is provided with a material guiding device 4 abutting against the filter screen 23; the material guiding device 4 comprises a first material guiding plate 41, a second material guiding plate 42, an elastic connecting block 43, a clamping protrusion 44 and a clamping interface 45; on accepting the frame 32 is located in the slope of first stock guide 41, second stock guide 42 is inserted and is located in first stock guide 41 and slide conflict with filter screen 23, set up on the first stock guide 41 and supply second stock guide 42 to insert and establish the chute that slides, elastic connection piece 43 symmetry an organic whole locate on second stock guide 42 and slide conflict with the chute lateral wall that slides on the first stock guide 41, the protruding 44 an organic whole of joint is located elastic connection piece 43 and is kept away from the one end of second stock guide 42 and slide conflict with the chute lateral wall, joint mouth 45 is seted up on first stock guide 41 and is blocked with the protruding 44 joint of joint, the even setting of seting up a plurality of and running through first stock guide 41 of joint mouth 45. In the actual installation, insert the second stock guide 42 and locate the chute that slides on first stock guide 41 to make joint arch 44 and the 45 rubbish of joint mouth on the elastic connection piece 43, can accomplish the installation, in-process for the actual use, the rubbish on the filter screen 23 that second stock guide 42 can be more comprehensive is struck off, thereby guarantees rubbish along first stock guide 41 and second stock guide 42 landing to accepting the frame 32 in, improves the treatment effect of river course rubbish.

Referring to fig. 1, the river channel treatment garbage intercepting method using the above river channel garbage treatment intercepting equipment includes the following steps:

s1: installing and debugging, namely installing the relevant garbage intercepting frame 1, the garbage picking device 2 and the garbage transferring device 3 into a river channel and debugging the equipment to a working state;

s2: the garbage blocking step, namely, the garbage in the river water flowing through the garbage blocking frame 1 is filtered and blocked by the filter screen 23 through the mutual matching of the garbage blocking frame 1 and the filter screen 23, so that the garbage is difficult to flow downstream from the garbage blocking frame 1;

s3: the garbage collection step includes that a driving motor 21 is started to drive a driving gear 22 to rotate, the driving gear 22 and a driving rack 24 are matched with each other to drive a filter screen 23 to rotate on an intercepting cross bar 12, and garbage flowing through the filter screen 23 can fall into a receiving frame 32 through the filter screen 23 after the filter screen 23 rotates;

s5: and (3) transferring the garbage falling into the receiving frame 32 out of the receiving frame 32 after the receiving frame 32 is filled with the garbage, so as to prevent the secondary pollution of the river channel caused by the garbage in the receiving frame 32.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A river channel treatment garbage interception treatment method is characterized by comprising the following steps: the river channel garbage treatment intercepting equipment comprises a garbage intercepting frame (1), a garbage picking device (2) and a garbage transferring device (3), wherein the garbage intercepting frame (1) is used for fixing the garbage picking device (2), and the garbage transferring device (3) is used for transferring picked garbage so as to prevent the garbage from causing secondary pollution to a river channel;

the garbage intercepting frame (1) comprises a fixed upright post (11), an intercepting cross rod (12) and an inclined supporting rod (13), wherein the end parts of the fixed upright post (11) and the inclined supporting rod (13) are fixedly connected to form a 'people' shaped supporting structure, the fixed upright post (11) and the inclined supporting rod (13) are inserted into a river channel, the connecting end of the fixed upright post (11) and the inclined supporting rod (13) is higher than the liquid level of the river channel, the 'people' shaped supporting structure is arranged at the two ends of the intercepting cross rod (12), the intercepting cross rod (12) is provided with three parts, and the end parts of the intercepting cross rod (12) are connected with the fixed upright post (11) and the inclined supporting rod (;

the garbage picking device (2) comprises a driving motor (21), a driving gear (22), a filter screen (23), a driving rack (24) and a tensioning frame (25), wherein the driving motor (21) and the driving gear (22) are arranged on the intercepting cross rod (12), an output shaft of the driving motor (21) is meshed with the driving gear (22) to drive the driving gear (22) to rotate, the filter screen (23) is sleeved on the intercepting cross rod (12), the driving rack (24) is arranged on the inner side wall of the filter screen (23) and meshed with the driving gear (22), and the tensioning frame (25) is arranged on the intercepting cross rod (12) and is abutted against the inner side wall of the filter screen (23) to tension the filter screen (23);

the garbage transfer device (3) comprises a floating plate (31), a bearing frame (32), a connecting block (33), a connecting port (34) and a connecting protrusion (35), wherein the floating plate (31) is arranged in a river channel, the bearing frame (32) is arranged on the floating plate (31) to bear garbage filtered on the filter screen (23), the connecting block (33) is rotatably connected to the floating plate (31), the connecting port (34) is arranged at one end, far away from the floating plate (31), of the connecting block (33), and the connecting protrusion (35) is integrally arranged on the inclined supporting rod (13) and clamped with the connecting port (34) to fix the bearing frame (32);

s1: installing and debugging, namely installing a related garbage intercepting frame (1), a garbage picking device (2) and a garbage transferring device (3) into a river channel and debugging the equipment to a working state;

s2: garbage is intercepted, and the garbage in the river water flowing through the garbage intercepting frame (1) is filtered and intercepted through the filter screen (23) through the mutual matching of the garbage intercepting frame (1) and the filter screen (23), so that the garbage is not easy to flow downstream from the garbage intercepting frame (1);

s3: garbage collection, wherein a driving gear (22) is driven to rotate by starting a driving motor (21), a filter screen (23) is driven to rotate on an intercepting cross rod (12) by the mutual matching of the driving gear (22) and a driving rack (24), and the garbage flowing through the filter screen (23) can fall into a receiving frame (32) through the filter screen (23) after the filter screen (23) rotates;

s4: and (3) garbage transfer, namely transferring the garbage falling into the receiving frame (32) out of the receiving frame (32) after the receiving frame (32) is filled with the garbage, so as to prevent the garbage in the receiving frame (32) from causing secondary pollution to the river channel.

2. The river treatment garbage intercepting and processing method according to claim 1, characterized in that: interception horizontal pole (12) are including first installation pole and second installation pole, first installation pole is connected with fixed post (11) and inclined support pole (13) respectively with second installation rod tip, first installation pole cover is located on the second installation pole, be provided with a plurality of elasticity of sliding conflict with second installation pole surface on the first installation pole and support the contact piece, a plurality of joint holes have been seted up on the elasticity contact piece, an organic whole is equipped with the spacing joint piece with joint hole joint on the second installation pole.

3. The river treatment garbage intercepting and processing method according to claim 2, characterized in that: tensioning frame (25) include first threaded rod (121), second threaded rod (122), thread bush (123) and live-rollers (124), first threaded rod (121) are located on first installation pole or second installation pole through the bolt, thread bush (123) one end and first threaded rod (121) threaded connection, the thread bush (123) other end and second threaded rod (122) thread tightening, the screw thread opposite direction of first threaded rod (121) and second threaded rod (122), live-rollers (124) rotate to be connected on second threaded rod (122) and with filter screen (23) inboard emergence conflict.

4. The river treatment garbage intercepting and processing method according to claim 3, characterized in that: the outer surface of the threaded sleeve (123) is provided with a plurality of protrusions (1231), and the protrusions (1231) are held by an operator so that the threaded sleeve (123) can be rotated conveniently.

5. The river treatment garbage intercepting and processing method according to claim 1, characterized in that: the outer surface is equipped with a plurality of article diaphragm (231) on filter screen (23), it moves on filter screen (23) with the rubbish contact in order to drive the river course in article diaphragm (231) and the river course.

6. The river treatment garbage intercepting and processing method according to claim 5, characterized in that: the material guiding device (4) abutting against the filter screen (23) is arranged on the bearing frame (32), the material guiding device (4) comprises a first material guiding plate (41), a second material guiding plate (42), an elastic connecting block (43), a clamping protrusion (44) and a clamping interface (45), the first material guiding plate (41) is obliquely arranged on the bearing frame (32), the second material guiding plate (42) is inserted into the first material guiding plate (41) and is slidably abutted against the filter screen (23), a sliding chute for the second material guiding plate (42) to be inserted and slid is arranged on the first material guiding plate (41), the elastic connecting block (43) is symmetrically and integrally arranged on the second material guiding plate (42) and is slidably abutted against the side wall of the sliding chute on the first material guiding plate (41), the clamping protrusion (44) is integrally arranged at one end of the elastic connecting block (43) far away from the second material guiding plate (42) and is slidably abutted against the side wall of the sliding chute, the clamping interface (45) is arranged on the first material guide plate (41) and is clamped with the clamping protrusions (44), and the clamping interface (45) is uniformly provided with a plurality of clamping protrusions.