CN218132460U - Biomass comprehensive pulverizer hollow roller - Google Patents

Abstract

The utility model discloses a rubbing crusher fretwork formula roller is synthesized to living beings, which comprises a rotating shaft, the one end of pivot is provided with the connecting axle, the roller body has been cup jointed to the outer wall of pivot, the outer wall of roller body is provided with fixed subassembly. The utility model adopts the above structure, fix the inside at the fixed slot with the fixed block through positioning mechanism, make the pivot drive roller body through fixed subassembly and rotate, fix the scraper at the outer wall of installation piece through the screen cover nut afterwards, can accomplish equipment work, along with being connected pivot and rubbing crusher, can make roller body carry out the material loading work, and through the support body, installation piece and scraper form the fretwork design at roller body's outside, greatly increased the material area in the operation process, the improvement of very big degree material loading efficiency, thereby promote the crushing efficiency of living beings, and after the scraper wearing and tearing, the change work of the scraper of can being convenient for through the screen cover nut, it is more convenient when changing to make the scraper, and is swift.

Description

Biomass comprehensive pulverizer hollow roller

Technical Field

The utility model belongs to rubbing crusher field is synthesized to living beings, in particular to rubbing crusher fretwork formula roller is synthesized to living beings.

Background

The biomass mainly refers to lignocellulose such as straws and trees except grains and fruits in the agriculture and forestry production process, agricultural product processing leftovers, agriculture and forestry wastes, livestock manure and wastes in the animal husbandry production process, and the like, and the comprehensive biomass crusher is special equipment for storing fuels of a biomass power plant and the like and is mainly used for crushing biomass.

In prior art, when the biomass comprehensive crusher is used for crushing biomass, the feeding efficiency of the feeding roller body is low, the feeding roller body is difficult to maintain after being used for a long time, particularly when abrasion and other conditions occur at positions of a scraper, the scraper is inconvenient to replace, a large amount of time is consumed for cutting and welding, and the replacement of the scraper can be completed, so that the maintenance efficiency of the feeding roller body is seriously influenced.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing a rubbing crusher fretwork formula roller is synthesized to living beings to solve among the prior art living beings and synthesize the material loading inefficiency of rubbing crusher's material loading roller body, and be difficult to carry out the problem of changing to the scraper.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a hollowed-out roller of a comprehensive biomass pulverizer comprises a rotating shaft, wherein one end of the rotating shaft is provided with a connecting shaft, the outer wall of the rotating shaft is sleeved with a roller body, the outer wall of the roller body is provided with a fixing assembly, the fixing assembly is clamped with the rotating shaft, the outer side of the outer wall of the roller body is provided with a frame body, the inner wall of the frame body is provided with an installation block, the outer wall of the installation block is connected with a scraper in a fitting manner, the outer wall of the scraper is provided with a screen sleeve nut, and the screen sleeve nut is connected with the installation block;

the fixed subassembly is including leading to groove, fixed block and fixed slot, it sets up at the outer wall of roller body to lead to the groove, the fixed block is pegged graft in the inside of roller body, the outer wall at the pivot is seted up to the fixed slot, the one end of fixed block is pegged graft in the inside of fixed slot, the lateral wall of fixed block is provided with positioning mechanism, the fixed block passes through the inside of positioning mechanism joint at the fixed slot.

Further, as a preferred technical scheme, the positioning mechanism comprises a rod groove, a clamping rod, a clamping groove and a transmission assembly, the rod groove is formed in the side wall of the fixing block, the clamping rod is connected inside the rod groove in a sliding mode, a limiting assembly is arranged on one side of the clamping rod, one end of the clamping rod penetrates through the rod groove, the clamping groove is formed in the inner wall of the fixing groove, one end of the clamping rod is inserted into the clamping groove, the transmission assembly is arranged on one side of the inner wall of the rod groove, the transmission assembly is in transmission connection with the clamping rod, and a reset assembly is arranged on the other side of the clamping rod.

Further, as a preferred technical scheme, an inserting rod is arranged on the inner wall of the clamping groove, a slot is formed in one end of the clamping rod, and one end of the inserting rod is inserted into the slot.

Further, as preferred technical scheme, spacing subassembly includes stopper and spacing groove, the stopper sets up the one side at the kelly, the outside in pole inslot wall one side is seted up to the spacing groove, stopper sliding connection is in the inside of spacing groove.

Further, as preferred technical scheme, transmission assembly includes recess, ejector pad and control assembly, the recess is seted up in one side of pole inslot wall, ejector pad sliding connection is in the inside of recess, the one end of ejector pad stretches into the inside in pole groove, the lateral wall of ejector pad is connected with the other end laminating of kelly, control assembly sets up the other end at the fixed block, control assembly is connected with the ejector pad transmission.

Further, as preferred technical scheme, control assembly includes turn trough, bolt, thread groove and locating component, the other end at the fixed block is seted up to the turn trough, the turn trough is linked together with the recess, the bolt rotates the inside of connecting at the turn trough, locating component sets up the outer wall at the bolt, the inside of recess is stretched into to the one end of bolt, the thread groove is seted up at the other end of ejector pad, the one end threaded connection of bolt is in the inside of thread groove.

Further, as preferred technical scheme, locating component includes locating piece and constant head tank, the locating piece sets up the outer wall at the bolt, the inner wall at the rotary trough is seted up to the constant head tank, the locating piece rotates the inside of connecting at the constant head tank.

Further, as a preferred technical scheme, the reset assembly comprises a cavity, a connecting rod and a spring, the cavity is arranged inside the fixing block and communicated with the rod groove, the connecting rod is arranged on the other side of the clamping rod, one end of the connecting rod extends into the cavity, the spring is arranged at one end of the connecting rod, and one end of the spring is connected with the other connecting rod.

To sum up, the utility model discloses mainly have following beneficial effect:

firstly, the roller body is sleeved on the outer wall of the rotating shaft, then the fixing block is fixed inside the fixing groove through the positioning mechanism, the rotating shaft can drive the roller body to rotate through the fixing component, then the scraper is fixed on the outer wall of the mounting block through the screen sleeve nut, the assembling work can be completed, then the rotating shaft can be connected with the crusher, the crusher can drive the rotating shaft to rotate through the connecting shaft, the roller body can be subjected to loading work, and the mounting block and the scraper form a hollowed-out design outside the roller body through the frame body, so that the material loading area is greatly increased in the operation process, the loading efficiency is greatly improved, the crushing efficiency of biomass is improved, and after the scraper is worn, the scraper can be conveniently replaced through the screen sleeve nut, and the scraper is more convenient and rapid to replace;

second, after inserting the fixed block in the inside of fixed slot, can make the kelly slide in the inside in pole groove through drive assembly, and the position of kelly is stabilized through spacing subassembly, avoid the kelly skew to appear, the circumstances such as drop, can make the inside of kelly's one end insertion draw-in groove, thereby make the kelly can fix the fixed block in the inside of fixed slot, so that the pivot passes through the fixed block and drives the roller body and rotate, and when needs separate fixed block and fixed slot, make the position that drive assembly no longer supported the kelly, can drive the kelly through reset assembly and reset, make kelly and draw-in groove separation, thereby make positioning mechanism no longer play the positioning action, can separate fixed block and fixed slot, can separate roller body and pivot afterwards, so that change the maintenance alone to roller body and pivot, not only avoid the whole dismantlement and influence the normal use of rubbing crusher, and change the maintenance alone and can effectively reduce the maintenance cost.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the frame structure of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2 according to the present invention.

Reference numerals: 1. the roller comprises a rotating shaft, 11, a connecting shaft, 2, a roller body, 21, a frame body, 3, a fixing component, 31, a through groove, 32, a fixing block, 33, a fixing groove, 4, a positioning mechanism, 41, a rod groove, 42, a clamping rod, 43, a clamping groove, 431, an inserting rod, 432, a slot, 44, a limiting component, 441, a limiting block, 442, a limiting groove, 45, a transmission component, 451, a groove, 452, a push block, 46, a control component, 461, a rotating groove, 462, a bolt, 463, a thread groove, 47, a positioning component, 471, a positioning block, 472, a positioning groove, 48, a resetting component, 481, a cavity, 482, a connecting rod, 483, a spring, 5, an installation block, 6, a scraper, 7 and a screen bushing nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the hollowed-out roller of the comprehensive biomass crusher in this embodiment comprises a rotating shaft 1, wherein one end of the rotating shaft 1 is provided with a connecting shaft 11, the outer wall of the rotating shaft 1 is sleeved with a roller body 2, the outer wall of the roller body 2 is provided with a fixing component 3, the fixing component 3 is clamped with the rotating shaft 1, the outer side of the outer wall of the roller body 2 is provided with a frame body 21, the inner wall of the frame body 21 is provided with an installation block 5, the outer wall of the installation block 5 is connected with a scraper 6 in an attaching manner, the outer wall of the scraper 6 is provided with a screen nut 7, and the screen nut 7 is connected with the installation block 5;

the fixing assembly 3 comprises a through groove 31, a fixing block 32 and a fixing groove 33, the through groove 31 is formed in the outer wall of the roller body 2, the fixing block 32 is inserted into the roller body 2, the fixing groove 33 is formed in the outer wall of the rotating shaft 1, one end of the fixing block 32 is inserted into the fixing groove 33, a positioning mechanism 4 is arranged on the side wall of the fixing block 32, and the fixing block 32 is clamped into the fixing groove 33 through the positioning mechanism 4;

through cup jointing roller body 2 at the outer wall of pivot 1, fix fixed block 32 in the inside of fixed slot 33 through positioning mechanism 4 afterwards, can make pivot 1 drive roller body 2 through fixed subassembly 3 and rotate, laminate scraper 6 at the outer wall of installation piece 5 afterwards, and the position of scraper 6 is fixed through screen sleeve nut 7, can accomplish equipment work, can be connected pivot 1 with the rubbing crusher afterwards, make rubbing crusher pass through connecting axle 11 and drive pivot 1 and rotate, make roller body 2 can carry out the material loading work through scraper 6, and through support body 21, installation piece 5 and scraper 6 form the fretwork design in roller body 2's outside, the material area has greatly increased in the operation process, the improvement of very big degree material loading efficiency, thereby promote the crushing efficiency of living beings, and after scraper 6 wearing and tearing, can be convenient for scraper 6's change work through screen sleeve nut 7, it is more convenient when changing to make scraper 6, it is swift, and can be convenient for separate roller and pivot 1 through fixed subassembly 3, so as to maintain roller body 2 and pivot 1 alone, avoid the normal use of whole dismantlement back to influence the rubbing crusher.

Example 2

Referring to fig. 3, on the basis of embodiment 1, in order to achieve the purpose of fixing the fixing block 32 inside the fixing groove 33, in this embodiment, an innovative design is performed on the positioning mechanism 4, specifically, the positioning mechanism 4 includes a rod groove 41, a clamping rod 42, a clamping groove 43 and a transmission assembly 45, the rod groove 41 is formed in a side wall of the fixing block 32, the clamping rod 42 is slidably connected inside the rod groove 41, a limiting assembly 44 is disposed on one side of the clamping rod 42, one end of the clamping rod 42 penetrates through the rod groove 41, the clamping groove 43 is formed in an inner wall of the fixing groove 33, one end of the clamping rod 42 is inserted into the clamping groove 43, the transmission assembly 45 is disposed on one side of an inner wall of the rod groove 41, the transmission assembly 45 is in transmission connection with the clamping rod 42, and a reset assembly 48 is disposed on the other side of the clamping rod 42; after inserting fixed block 32 in the inside of fixed slot 33, can make kelly 42 slide in the inside of pole groove 41 through drive assembly 45, and the position of kelly 42 is stabilized through spacing subassembly 44, avoid kelly 42 skew to appear, the condition such as drops, can make the inside that the one end of kelly 42 inserted draw-in groove 43, thereby make kelly 42 can fix fixed block 32 in the inside of fixed slot 33, so that pivot 1 drives roller body 2 through fixed block 32 and rotates, and when needs are with fixed block 32 and fixed slot 33 separation, make drive assembly 45 no longer support the position of kelly 42, can drive kelly 42 through reset assembly 48 and reset, make kelly 42 and draw-in groove 43 separation, thereby make positioning mechanism 4 no longer play the positioning action, can separate fixed block 32 and fixed slot 33, so that roller body 2 and pivot 1 separation.

Referring to fig. 3, in order to achieve the purpose of increasing the strength of the clamping rod 42, the inner wall of the clamping groove 43 of the present embodiment is provided with an insertion rod 431, one end of the clamping rod 42 is provided with a slot 432, and one end of the insertion rod 431 is inserted into the slot 432; one end of the inserting rod 431 is inserted into the slot 432, so that the inserting rod 431 can play a role in improving the strength of the clamping rod 42, and the situation that the clamping rod 42 is broken when the rotating shaft 1 and the roller body 2 rotate is avoided from influencing the position of the fixing block 32.

Referring to fig. 3, in order to fix the position of the locking rod 42, the limiting assembly 44 of the present embodiment includes a limiting block 441 and a limiting groove 442, the limiting block 441 is disposed at one side of the locking rod 42, the limiting groove 442 is disposed at the outer portion of one side of the inner wall of the rod groove 41, and the limiting block 441 is slidably connected to the inner portion of the limiting groove 442; the limiting block 441 is slidably connected inside the limiting groove 442, so that the limiting component 44 can play a role in stabilizing the position of the clamping rod 42, and the clamping rod 42 is prevented from being inclined or falling off to influence the position of the fixing block 32.

Example 3

Referring to fig. 3, in this embodiment, on the basis of embodiment 2, in order to achieve the purpose of inserting the clamping rod 42 into the clamping slot 43, the transmission assembly 45 is innovatively designed, specifically, the transmission assembly 45 includes a groove 451, a push block 452, and a control assembly 46, the groove 451 is disposed on one side of the inner wall of the rod groove 41, the push block 452 is slidably connected inside the groove 451, one end of the push block 452 extends into the rod groove 41, the side wall of the push block 452 is attached to the other end of the clamping rod 42, the control assembly 46 is disposed on the other end of the fixed block 32, and the control assembly 46 is in transmission connection with the push block 452; when the clamping rod 42 needs to be inserted into the clamping groove 43, the control component 46 drives the pushing block 452 to slide in the groove 451, so that one end of the pushing block 452 can be inserted into the rod groove 41, the pushing block 452 extrudes the clamping rod 42, the clamping rod 42 can slide in the rod groove 41, and one end of the clamping rod 42 can be inserted into the clamping groove 43.

Referring to fig. 3, for the purpose of adjusting the position of the pushing block 452, the control assembly 46 of the present embodiment includes a rotating slot 461, a bolt 462, a thread slot 463 and a positioning assembly 47, the rotating slot 461 is disposed at the other end of the fixed block 32, the rotating slot 461 is communicated with the groove 451, the bolt 462 is rotatably connected inside the rotating slot 461, the positioning assembly 47 is disposed on the outer wall of the bolt 462, one end of the bolt 462 extends into the groove 451, the thread slot 463 is disposed at the other end of the pushing block 452, and one end of the bolt 462 is threadedly connected inside the thread slot 463; by rotating the bolt 462 and stabilizing the position of the bolt 462 by the positioning assembly 47, the bolt 462 is prevented from moving longitudinally, so that the bolt 462 drives the push block 452 to move longitudinally inside the groove 451 through the thread groove 463, and the control assembly 46 achieves the function of adjusting the position of the push block 452.

Referring to fig. 3, in order to achieve the purpose of stabilizing the position of the bolt 462, the positioning assembly 47 of the embodiment includes a positioning block 471 and a positioning groove 472, the positioning block 471 is disposed on an outer wall of the bolt 462, the positioning groove 472 is disposed on an inner wall of the rotating groove 461, and the positioning block 471 is rotatably connected inside the positioning groove 472; the positioning block 471 is rotatably connected to the inside of the positioning groove 472, so that the positioning assembly 47 can stabilize the position of the bolt 462, and the longitudinal movement of the bolt 462 is prevented from affecting the position of the push block 452.

Referring to fig. 3, in order to achieve the purpose of separating the catching bar 42 from the catching groove 43, the restoring assembly 48 of the present embodiment includes a cavity 481, a connecting bar 482 and a spring 483, the cavity 481 is opened inside the fixing block 32, the cavity 481 communicates with the bar groove 41, the connecting bar 482 is disposed at the other side of the catching bar 42, one end of the connecting bar 482 protrudes into the cavity 481, the spring 483 is disposed at one end of the connecting bar 482, and one end of the spring 483 is connected to the other connecting bar 482; when the fixing block 32 needs to be taken out, the control component 46 drives the pushing block 452 to move, so that the pushing block 452 is separated from the clamping rod 42, and after the support of the pushing block 452 is lost, the spring 483 can drive the connecting rod 482 to slide in the cavity 481, so that the connecting rod 482 can drive the clamping rod 42 to move towards the inside of the rod groove 41, and the reset component 48 achieves the effect of separating the clamping rod 42 from the clamping groove 43.

The use principle and the advantages are as follows: the roller body 2 is sleeved on the outer wall of the rotating shaft 1, then the fixing block 32 is inserted into the fixing groove 33 through the through groove 31, then the bolt 462 is rotated and is rotatably connected into the positioning groove 472 through the positioning block 471, so that the positioning assembly 47 stabilizes the position of the bolt 462 in the rotating groove 461, the bolt 462 is prevented from moving longitudinally, the bolt 462 can drive the push block 452 to move longitudinally in the groove 451 through the thread groove 463, the control assembly 46 can adjust the position of the push block 452, one end of the push block 452 is inserted into the rod groove 41, the clamping rod 42 can slide in the rod groove 41 through the extrusion of the push block 452, and is slidably connected into the limiting groove 442 through the limiting block 441, so that the position of the clamping rod 42 is stabilized by the limiting assembly 44, that is, one end of the clamping rod 42 can be inserted into the clamping groove 43 through the transmission assembly 45, meanwhile, the inserted rod 431 in the clamping groove 43 is inserted into the slot 432, so that the inserted rod 431 improves the strength of the clamping rod 42, the clamping rod 42 is prevented from being broken, the fixing block 32 can be fixed inside the fixing groove 33 through the positioning mechanism 4, the rotating shaft 1 can drive the roller body 2 to rotate through the fixing component 3, then the scraper 6 is fixed on the outer wall of the mounting block 5 through the screen sleeve nut 7, the assembly work can be completed, then the rotating shaft 1 is connected with the crusher, the crusher can drive the rotating shaft 1 to rotate through the connecting shaft 11, so that the roller body 2 carries out the feeding work, the frame body 21, the mounting block 5 and the scraper 6 form a hollowed design outside the roller body 2, the feeding area is greatly increased in the operation process, the feeding efficiency is greatly improved, the crushing efficiency of biomass is improved, and after the scraper 6 is abraded, the hollowed-out replacement work of the scraper 6 can be facilitated through the screen sleeve nut 7, make scraper 6 more convenient when changing, it is swift, and when needs are changed roller body 2 or pivot 1 and are maintained, control transmission assembly 45 through control assembly 46, make ejector pad 452 no longer support the position of kelly 42, can make spring 483 drive connecting rod 482 slide in the inside of cavity 481, thereby make connecting rod 482 can drive kelly 42 and move to the inside of pole groove 41, can make kelly 42 and draw-in groove 43 separation through reset assembly 48, and then make positioning mechanism 4 no longer play the positioning action, then can take out fixed block 32, so that separate roller body 2 and pivot 1, thereby make roller body 2 and pivot 1 can change the maintenance alone, not only avoid whole dismantlement and influence the normal use of rubbing crusher, and it can effectively reduce the maintenance cost to change the maintenance alone.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a rubbing crusher fretwork formula roller is synthesized to living beings which characterized in that: the roller comprises a rotating shaft (1), wherein a connecting shaft (11) is arranged at one end of the rotating shaft (1), a roller body (2) is sleeved on the outer wall of the rotating shaft (1), a fixing component (3) is arranged on the outer wall of the roller body (2), the fixing component (3) is clamped with the rotating shaft (1), a frame body (21) is arranged on the outer side of the outer wall of the roller body (2), an installation block (5) is arranged on the inner wall of the frame body (21), a scraper (6) is attached to the outer wall of the installation block (5), a screen sleeve nut (7) is arranged on the outer wall of the scraper (6), and the screen sleeve nut (7) is connected with the installation block (5);

fixed subassembly (3) are including leading to groove (31), fixed block (32) and fixed slot (33), the outer wall in roller body (2) is seted up in logical groove (31), fixed block (32) are pegged graft in the inside of roller body (2), the outer wall in pivot (1) is seted up in fixed slot (33), the one end of fixed block (32) is pegged graft in the inside of fixed slot (33), the lateral wall of fixed block (32) is provided with positioning mechanism (4), fixed block (32) pass through positioning mechanism (4) joint in the inside of fixed slot (33).

2. The hollow roller of the comprehensive biomass pulverizer of claim 1, which is characterized in that: positioning mechanism (4) include pole groove (41), kelly (42), draw-in groove (43) and drive assembly (45), the lateral wall at fixed block (32) is seted up in pole groove (41), kelly (42) sliding connection is in the inside of pole groove (41), one side of kelly (42) is provided with spacing subassembly (44), the one end of kelly (42) runs through pole groove (41), the inner wall at fixed slot (33) is seted up in draw-in groove (43), the one end of kelly (42) is pegged graft in the inside of draw-in groove (43), drive assembly (45) set up the one side at pole groove (41) inner wall, drive assembly (45) are connected with kelly (42) transmission, the opposite side of kelly (42) is provided with reset assembly (48).

3. The hollow roller of the comprehensive biomass pulverizer of claim 2, which is characterized in that: an inserting rod (431) is arranged on the inner wall of the clamping groove (43), a slot (432) is formed in one end of the clamping rod (42), and one end of the inserting rod (431) is inserted into the slot (432).

4. The hollow roller of the comprehensive biomass pulverizer as claimed in claim 2, wherein: the limiting assembly (44) comprises a limiting block (441) and a limiting groove (442), the limiting block (441) is arranged on one side of the clamping rod (42), the limiting groove (442) is arranged on the outer portion of one side of the inner wall of the rod groove (41), and the limiting block (441) is connected to the inner portion of the limiting groove (442) in a sliding mode.

5. The hollow roller of the comprehensive biomass pulverizer as claimed in claim 2, wherein: drive assembly (45) are including recess (451), ejector pad (452) and control assembly (46), one side at pole groove (41) inner wall is seted up in recess (451), ejector pad (452) sliding connection is in the inside of recess (451), the inside in pole groove (41) is stretched into to the one end of ejector pad (452), the lateral wall of ejector pad (452) is connected with the other end laminating of kelly (42), control assembly (46) set up the other end at fixed block (32), control assembly (46) are connected with ejector pad (452) transmission.

6. The hollow roller of the comprehensive biomass pulverizer of claim 5, which is characterized in that: the control assembly (46) comprises a rotary groove (461), a bolt (462), a thread groove (463) and a positioning assembly (47), wherein the rotary groove (461) is formed in the other end of the fixed block (32), the rotary groove (461) is communicated with the groove (451), the bolt (462) is rotatably connected to the inside of the rotary groove (461), the positioning assembly (47) is arranged on the outer wall of the bolt (462), one end of the bolt (462) extends into the inside of the groove (451), the thread groove (463) is formed in the other end of the push block (452), and one end of the bolt (462) is in threaded connection with the inside of the thread groove (463).

7. The hollow roller of the comprehensive biomass pulverizer of claim 6, which is characterized in that: the positioning assembly (47) comprises a positioning block (471) and a positioning groove (472), the positioning block (471) is arranged on the outer wall of the bolt (462), the positioning groove (472) is formed in the inner wall of the rotating groove (461), and the positioning block (471) is rotatably connected to the inside of the positioning groove (472).

8. The hollow roller of the comprehensive biomass pulverizer of claim 2, which is characterized in that: the reset assembly (48) comprises a cavity (481), a connecting rod (482) and a spring (483), wherein the cavity (481) is arranged inside the fixing block (32), the cavity (481) is communicated with the rod groove (41), the connecting rod (482) is arranged on the other side of the clamping rod (42), one end of the connecting rod (482) extends into the cavity (481), the spring (483) is arranged at one end of the connecting rod (482), and one end of the spring (483) is connected with the other connecting rod (482).

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