CN211415559U - Wood board pressing device convenient for discharging and used for producing wooden furniture - Google Patents

Abstract

The utility model discloses a plank compression fittings is used in wood system furniture production convenient to ejection of compact, comprising a base plate, the bottom plate top is close to left side fixedly connected with fixed plate of department, fixed plate right side lateral wall is close to top fixedly connected with mounting panel of department, the mounting panel top is close to the first cylinder of center fixedly connected with of department, and the first trachea of first cylinder bottom fixedly connected with, the mounting panel seted up with first trachea assorted round hole, and first trachea bottom passes the round hole and extends to the first gas storehouse of mounting panel bottom fixedly connected with, first gas storehouse top and mounting panel bottom fixed connection, first gas storehouse top seted up with first trachea assorted first gas pocket, and first trachea bottom passes first gas pocket and is linked together with first gas storehouse is inside, the utility model discloses a series of structure makes this device have the ejection of compact of being convenient for, The stacking is orderly, the pressing efficiency is high and the like.

Description

Wood board pressing device convenient for discharging and used for producing wooden furniture

Technical Field

The utility model relates to a plank pressfitting technical field is used in the production of wood system furniture specifically is a plank compression fittings is used in the production of wood system furniture of the ejection of compact of being convenient for.

Background

The wood board is a preferred material for manufacturing furniture, raw materials are purely natural wood materials, a wood board pressing process is exquisite, the time and mode of hot pressing are required to be controlled reasonably, so that the colloid is fully filled in wood fibers, the furniture wood board with better quality can be manufactured, the performance of the furniture wood board is exerted to the maximum, the existing wood board pressing device cannot convey finished products in a portable mode after pressing is completed, the finished wood boards cannot be stacked in order to facilitate next-step transportation, the defects of inconvenience in discharging, irregular stacking, low pressing efficiency and the like exist, and therefore the wood board pressing device for producing the wooden furniture, which facilitates discharging, is provided.

Disclosure of Invention

The utility model provides a technical problem lie in overcoming the ejection of compact of being not convenient for of prior art, stack defect such as untidy and pressfitting inefficiency, provide a plank compression fittings is used in wood system furniture production of the ejection of compact of being convenient for. The wood board pressing device convenient for discharging for producing wooden furniture has the characteristics of convenience in discharging, tidiness in stacking, high pressing efficiency and the like.

In order to achieve the above object, the utility model provides a following technical scheme: a wood board pressing device convenient for discharging for producing wooden furniture comprises a bottom plate, wherein a fixed plate is fixedly connected to the position, close to the left side, of the top of the bottom plate, a mounting plate is fixedly connected to the position, close to the top of the fixed plate, of the right side wall of the fixed plate, a first air cylinder is fixedly connected to the position, close to the center, of the top of the mounting plate, a first air pipe is fixedly connected to the bottom of the first air cylinder, a round hole matched with the first air pipe is formed in the mounting plate, the bottom end of the first air pipe penetrates through the round hole and extends to the bottom of the mounting plate, a first air bin is fixedly connected to the bottom of the mounting plate, a first air hole matched with the first air pipe is formed in the top of the first air bin, the bottom end of the first air pipe penetrates through the first air hole and is communicated with the interior of the first air bin, sliding plates are, the bottom of the first air bin is provided with a movable hole matched with the pull arm, a transverse plate is arranged below the first air bin, the bottom of the pull arm penetrates through the movable hole to extend to the position below the first air bin to be fixedly connected with the top of the transverse plate, the side walls of the left side and the right side of the transverse plate are close to the front side and the rear side and are respectively and fixedly connected with two slide bars, the bottom of the mounting plate is fixedly connected with a U-shaped plate, the opening of the U-shaped plate is upward, the mounting plate and the U-shaped plate are respectively provided with a slide hole matched with the slide bars, the bottom ends of the slide bars sequentially penetrate through the slide holes to extend to the position below the U-shaped plate, the positions close to the front side and the rear side of the two slide bars are respectively and movably connected with a pinch roller through a rotating shaft and a, the utility model discloses a solar water heater, including connecting plate, clamp plate, hot-water tank, water inlet pipe, water outlet pipe, connecting rod, connecting plate, clamp plate top fixedly connected with hot-water tank, and hot-water tank left side lateral wall is close to top fixedly connected with inlet tube, and the inlet tube is outer to be close to top and install the water pump, hot-water tank right side lateral wall is close to bottom fixedly connected with outlet pipe, clamp plate bottom fixedly connected with hot-water plate, hot-water plate top be close to left and right sides department respectively with outlet pipe and inlet tube assorted flow hole, and outlet pipe and inlet tube bottom pass flow hole respectively and be linked together with the hot-water plate is inside, fixed plate back wall fixedly connected with backplate, and the backplate antetheca position is close to the top and bottom respectively with the back wall fixed connection of bottom plate and mounting panel, the backplate antetheca position loops The roller wheels are evenly distributed, a conveying belt is connected to the outer portion of each roller wheel in a transmission mode, a motor is fixedly connected to the position, close to the left side, of the top of the bottom plate, a belt is connected between an output shaft of the front wall of the motor and an output shaft of the rear wall of the roller wheel located on the left side in a transmission mode, a second air cylinder is fixedly connected to the position, close to the left side, of the top of the bottom plate, a second air pipe is fixedly connected to the position, close to the left side, of the top of the second air cylinder, a second air chamber is fixedly connected to the top of the second air chamber, a T-shaped pull rod is movably connected between the top and the bottom of an inner cavity of the second air chamber, a through hole matched with the T-shaped pull rod is formed in the second air chamber, the right end of the T-shaped pull rod penetrates through the through hole to extend, the top of the bottom plate is movably connected with a baffle plate close to the right side.

Preferably, the hot water tank is provided with a water inlet hole matched with the water inlet pipe, the right end of the water inlet pipe penetrates through the water inlet hole and is communicated with the inside of the hot water tank, the hot water tank is provided with a water outlet hole matched with the water outlet pipe, and the left end of the water outlet pipe penetrates through the water outlet hole and is communicated with the inside of the hot water tank.

Preferably, the two pressing wheels are arranged in a bilateral symmetry mode by taking the central axis of the pressing plate as a symmetry axis, and the front end and the rear end of each pressing wheel are movably connected with the sliding rod through a rotating shaft and a bearing.

Preferably, the top of the second cylinder is close to the left side and the right side and is fixedly connected with a support rod, and the top end of the support rod is fixedly connected with the bottom of the second air bin.

Preferably, the bottom plate top is close to right side department from a left side to right side fixedly connected with two risers in proper order, and the riser set up with U-shaped push rod assorted perforation, U-shaped push rod right-hand member passes the perforation and extends to the right side of the riser that is located the right side.

Preferably, the left side wall and the top of the finished product vehicle are arranged in an open mode, grooves are formed in the positions, close to the left side and the right side, of the bottom of the finished product vehicle respectively, the tops of inner cavities of the two grooves are fixedly connected with supports respectively, and the two supports are movably connected with universal wheels through rotating shafts and bearings respectively.

Preferably, the top end of the sliding rod is fixedly connected with a limiting block, and the limiting block is positioned at the top of the mounting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the technical scheme, the first air cylinder can supply air to the inner cavity of the first air bin through the first air pipe by means of mutual matching among the first air cylinder, the first air bin and the transverse plate, so that the sliding plate drives the pull arm to slide downwards in the inner cavity of the first air bin, the transverse plate drives the pressing wheel and the hot water plate to move downwards through the sliding rod and the connecting plate, the pressing effect of pressing the pressing wheel and the hot water plate on the wood board is achieved, and the pressing efficiency of the wood board can be effectively improved;

2. in the technical scheme, the motor and the rollers are matched with each other, so that the motor can drive the rollers on the left side to rotate forwards through the belt, the conveyer belt can drive other rollers to rotate forwards, the wood boards are conveyed rightwards continuously, the wood boards are conveyed to a finished product vehicle directly after being pressed, and the wood boards can be discharged conveniently;

3. in this technical scheme, through the second cylinder, mutually supporting between second gas storehouse and the U-shaped push rod, can realize that the second cylinder supplies gas to the second gas storehouse inner chamber through the second trachea to realize that T shape pull rod slides right at the second gas storehouse inner chamber, and then realize that T shape pull rod drives U-shaped push rod and moves right, and realize that the U-shaped push rod drives the push pedal and moves right, play the push pedal and push away orderly effect with the finished product plank, can effectively realize piling neatly.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a bottom view of the U-shaped plate.

Fig. 3 is an enlarged view of fig. 1 at a.

Fig. 4 is an enlarged view of fig. 1 at B.

Fig. 5 is an enlarged view of fig. 1 at C.

Reference numbers in the figures: 1. a base plate; 2. a fixing plate; 3. mounting a plate; 4. a slide bar; 5. a transverse plate; 6. a U-shaped plate; 7. a roller; 8. a motor; 9. finished product turning; 10. a baffle plate; 11. a hot water plate; 12. a first cylinder; 13. a first gas bin; 14. a slide plate; 15. pulling the arm; 16. a connecting plate; 17. a pinch roller; 18. a hot water tank; 19. a vertical plate; 20. pressing a plate; 21. a second cylinder; 22. a second gas bin; 23. a T-shaped pull rod; 24. a U-shaped push rod; 25. pushing the plate; 26. a back plate; 27. and (4) a water pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-5, the present invention provides a technical solution: a wood board pressing device convenient for discharging for producing wooden furniture comprises a bottom plate 1, a fixed plate 2 is fixedly connected to the position, close to the left side, of the top of the bottom plate 1, a mounting plate 3 is fixedly connected to the position, close to the top, of the right side wall of the fixed plate 2, a first air cylinder 12 is fixedly connected to the position, close to the center, of the top of the mounting plate 3, a first air pipe is fixedly connected to the bottom of the first air cylinder 12, a round hole matched with the first air pipe is formed in the mounting plate 3, the bottom end of the first air pipe penetrates through the round hole to extend to the bottom of the mounting plate 3, a first air chamber 13 is fixedly connected to the bottom of the mounting plate 3, a first air hole matched with the first air pipe is formed in the top of the first air chamber 13, the bottom end of the first air pipe penetrates through the first air hole to be communicated with the inside of the first air chamber 13, a sliding, the bottom of the first air bin 13 is provided with a movable hole matched with the pull arm 15, a transverse plate 5 is arranged below the first air bin 13, the bottom of the pull arm 15 passes through the movable hole to extend to the lower part of the first air bin 13 to be fixedly connected with the top of the transverse plate 5, the left and right side walls of the transverse plate 5 are respectively and fixedly connected with two slide bars 4 near the front and rear sides, the top ends of the slide bars 4 are fixedly connected with a limiting block which is positioned at the top of the mounting plate 3, the bottom of the mounting plate 3 is fixedly connected with a U-shaped plate 6, the opening of the U-shaped plate 6 is upward, the mounting plate 3 and the U-shaped plate 6 are respectively provided with a slide hole matched with the slide bar 4, the bottom ends of the slide bars 4 sequentially pass through the slide holes to extend to the lower part of the U-shaped plate 6, press wheels 17 are respectively and movably connected with the, the bottom of the connecting plate 16 is respectively and fixedly connected with the left side and the right side, the pressing plate 20 is arranged below the connecting plate 16, the top of the pressing plate 20 is fixedly connected with the lower end of the connecting rod, the two pressing wheels 17 are arranged in bilateral symmetry with the central axis of the pressing plate 20 as a symmetry axis, the front ends and the rear ends of the two pressing wheels 17 are respectively and movably connected with the slide bar 4 through a rotating shaft and a bearing, through the mutual matching among the first air cylinder 12, the first air chamber 13 and the transverse plate 5, the air supply of the first air chamber 13 to the inner cavity of the first air chamber 13 through the first air pipe by the first air cylinder 12 can be realized, so that the slide plate 14 drives the pull arm 15 to slide downwards in the inner cavity of the first air chamber 13, the transverse plate 5 drives the pressing wheels 17 and the hot water plate 11 to move downwards through the slide bar 4 and the connecting plate 16, the effect of pressing, a water inlet pipe is fixedly connected to the left side wall of the hot water tank 18 close to the top, a water pump 27 is mounted outside the water inlet pipe close to the top, a water outlet pipe is fixedly connected to the right side wall of the hot water tank 18 close to the bottom, a water inlet hole matched with the water inlet pipe is formed in the hot water tank 18, the right end of the water inlet pipe penetrates through the water inlet hole and is communicated with the inside of the hot water tank 18, a water outlet hole matched with the water outlet pipe is formed in the hot water tank 18, the left end of the water outlet pipe penetrates through the water outlet hole and is communicated with the inside of the hot water tank 18, a hot water plate 11 is fixedly connected to the bottom of the pressing plate 20, the positions, close to the left side and the right side, of the top of the hot water plate 11 are respectively;

the back wall of the fixed plate 2 is fixedly connected with a back plate 26, the positions, close to the top and the bottom, of the front wall of the back plate 26 are respectively and fixedly connected with the back walls of the bottom plate 1 and the mounting plate 3, the positions, close to the bottom, of the front wall of the back plate 26 are respectively and fixedly connected with a plurality of rollers 7 which are uniformly distributed through rotating shafts and bearings in a movable mode from left to right, the outer portions of the rollers 7 are in transmission connection with a conveying belt, the position, close to the left, of the top of the bottom plate 1 is fixedly connected with a motor 8, a belt is in transmission connection between an output shaft of the front wall of the motor 8 and an output shaft of the back wall of the rollers 7 positioned on the left, the position, close to the left, of the top of the bottom plate 1 is fixedly connected with a second air pipe, the top of the second air pipe is, a T-shaped pull rod 23 is movably connected between the top and the bottom of an inner cavity of the second air bin 22, the second air bin 22 is provided with a through hole matched with the T-shaped pull rod 23, the right end of the T-shaped pull rod 23 penetrates through the through hole and extends to the right side of the second air bin 22 to be fixedly connected with a U-shaped push rod 24, the opening of the U-shaped push rod 24 faces the right, the right side wall of the U-shaped push rod 24 is fixedly connected with a push plate 25, through the mutual matching of the second air cylinder 21, the second air bin 22 and the U-shaped push rod 24, the second air cylinder 21 can feed air to the inner cavity of the second air bin 22 through a second air pipe, so that the T-shaped pull rod 23 slides rightwards in the inner cavity of the second air bin 22, the T-shaped pull rod 23 drives the U-shaped push rod 24 to move rightwards, the U-shaped push rod 24 drives the push plate 25 to move rightwards, the push plate 25 to push finished wood boards neatly, the, the vertical plate 19 is provided with a through hole matched with the U-shaped push rod 24, the right end of the U-shaped push rod 24 penetrates through the through hole and extends to the right side of the vertical plate 19 on the right side, the top part of the bottom plate 1 close to the right side is movably connected with a finished product vehicle 9, the left side wall and the top part of the finished product vehicle 9 are arranged in an open manner, the bottom part of the finished product vehicle 9 close to the left side and the right side is respectively provided with a groove, the tops of inner cavities of the two grooves are respectively and fixedly connected with a support, the two supports are respectively and movably connected with a universal wheel through a rotating shaft and a bearing, through the mutual matching between the motor 8 and the roller 7, the motor 8 can drive the roller 7 on the left side to rotate forward through a belt, so that the conveyor belt drives other roller 7 to rotate forward, further, the wood plates are continuously, the motor 8, the water pump 27, the first cylinder 12 and the second cylinder 21 are respectively and electrically connected with a control switch through external power lines, the model of the motor 8 is Puret PCF605/10, the model of the water pump 27 is Hengger RGB15-10, and the model of the first cylinder 12 and the model of the second cylinder 21 are of Suideke TN16 series.

The working principle is as follows: when the utility model is used, firstly, the wood board is prevented from being on the conveying belt, the motor 8 is turned on, the motor 8 can drive the roller 7 positioned on the left side to rotate positively through the belt, thereby realizing that the conveying belt drives other rollers 7 to rotate positively, further realizing that the wood board is conveyed to the right continuously, playing the role of directly conveying the wood board to the finished product vehicle 9 after being pressed, effectively realizing the convenient discharging of the wood board, simultaneously, the first air cylinder 12 is turned on, the first air cylinder 12 can realize that the first air cylinder 12 can supply air to the inner cavity of the first air bin 13 through the first air pipe, thereby realizing that the sliding plate 14 drives the pull arm 15 to slide downwards in the inner cavity of the first air bin 13, further realizing that the transverse plate 5 drives the pressing wheel 17 and the hot water plate 11 to move downwards through the sliding rod 4 and the connecting plate 16, playing the role of pressing the wood board by the pressing wheel 17 and the hot water plate 11, effectively improving the pressing efficiency, meanwhile, the water pump 27 is started to continuously convey water in the hot water plate 11 to the hot water tank 18 through the water inlet pipe, the hot water tank 18 conveys hot water to the inner cavity of the hot water plate 11 through the water outlet pipe, the circulation is repeated so as to facilitate the hot pressing of the wood plates, the hot water tank 18 continuously heats water so as to ensure the pressing effect, the pressed wood plates are continuously conveyed to the finished product cart 9 to be stacked to be flush with the top of the finished product cart 9, the second air cylinder 21 is started, the second air cylinder 21 can supply air to the inner cavity of the second air chamber 22 through the second air pipe, so that the T-shaped pull rod 23 slides rightwards in the inner cavity of the second air chamber 22, the T-shaped pull rod 23 drives the U-shaped push rod 24 to move rightwards, the U-shaped push rod 24 drives the push plate 25 to move rightwards, the push plate 25 plays a role in pushing finished wood plates neatly, the stacking can be effectively realized, and the vertical plate 19 plays roles of fixing and, prevent that it from rocking in the motion process and leading to push pedal 25 not vertical, the plank of stacking in the finished product car 9 is pushed neatly back by push pedal 25, closes second cylinder 21, and pull baffle 10 forward or backward, thereby promote finished product car 9 and leave bottom plate 1, and change the finished product car 9 of control, then pull baffle 10 once more, make it be vertical state, prevent finished product car 9 skew, the processing is accomplished and is closed motor 8, water pump 27, first cylinder 12 and second cylinder 21.

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 (7)

1. The utility model provides a plank compression fittings is used in production of wood system furniture convenient to ejection of compact, includes bottom plate (1), its characterized in that: the top of the bottom plate (1) is fixedly connected with a fixed plate (2) close to the left side, the right side wall of the fixed plate (2) is fixedly connected with a mounting plate (3) close to the top, the top of the mounting plate (3) is fixedly connected with a first cylinder (12) close to the center, the bottom of the first cylinder (12) is fixedly connected with a first air pipe, the mounting plate (3) is provided with a round hole matched with the first air pipe, the bottom end of the first air pipe penetrates through the round hole to extend to the bottom of the mounting plate (3) to be fixedly connected with a first air bin (13), the top of the first air bin (13) is fixedly connected with the bottom of the mounting plate (3), the top of the first air bin (13) is provided with a first air hole matched with the first air pipe, the bottom end of the first air pipe penetrates through the first air hole to be communicated with the inside of the first air bin (13), and a sliding plate (, the bottom of the sliding plate (14) is close to the left side and the right side and is fixedly connected with a pull arm (15) respectively, a movable hole matched with the pull arm (15) is formed in the bottom of the first air bin (13), a transverse plate (5) is arranged below the first air bin (13), the bottom of the pull arm (15) penetrates through the movable hole to extend to the lower portion of the first air bin (13) and the top of the transverse plate (5) to be fixedly connected with the top of the transverse plate (5), the side walls of the left side and the right side of the transverse plate (5) are close to the front side and the rear side and are fixedly connected with two sliding rods (4) respectively, the bottom of the mounting plate (3) is fixedly connected with a U-shaped plate (6), the opening of the U-shaped plate (6) is upward, the mounting plate (3) and the U-shaped plate (6) are respectively provided with sliding holes matched with the sliding rods (4), the bottom of the sliding rods (4) sequentially penetrates through the, a connecting plate (16) is arranged below the U-shaped plate (6), the left side wall and the right side wall of the connecting plate (16) are respectively and fixedly connected with one side wall of the sliding rod (4), the bottom of the connecting plate (16) is respectively and fixedly connected with a connecting rod at the position close to the left side and the right side, a pressing plate (20) is arranged below the connecting plate (16), the top of the pressing plate (20) is fixedly connected with a hot water tank (18), the position of the left side wall of the hot water tank (18) close to the top is fixedly connected with a water inlet pipe, a water pump (27) is arranged outside the water inlet pipe close to the top, the position of the right side wall of the hot water tank (18) close to the bottom is fixedly connected with a water outlet pipe, the bottom of the pressing plate (20) is fixedly connected with a hot water plate (11), the positions of the, the hot water plate is characterized in that the top of the hot water plate (11) is close to the left side and the right side and is respectively provided with a flow hole matched with the water outlet pipe and the water inlet pipe, the bottom ends of the water outlet pipe and the water inlet pipe respectively penetrate through the flow hole to be communicated with the inside of the hot water plate (11), the back wall of the fixing plate (2) is fixedly connected with a back plate (26), the front wall of the back plate (26) is close to the top and the bottom and is respectively fixedly connected with the back walls of the bottom plate (1) and the mounting plate (3), the front wall of the back plate (26) is close to the bottom and is sequentially connected with a plurality of uniformly distributed rollers (7) through a rotating shaft and a bearing from left to right in a movable mode, the rollers (7) are externally connected with a conveying belt in a transmission mode, the top of the bottom plate (1) is close to the left side and is fixedly connected with a motor, and second cylinder (21) top is close to left side department fixedly connected with second trachea, and second trachea top fixedly connected with second gas storehouse (22), swing joint has T shape pull rod (23) between second gas storehouse (22) inner chamber top and the bottom, second gas storehouse (22) seted up with T shape pull rod (23) assorted through-hole, the right-hand member of T shape pull rod (23) passes the through-hole and extends to second gas storehouse (22) right side fixedly connected with U-shaped push rod (24), and U-shaped push rod (24) opening faces the right side, U-shaped push rod (24) right side lateral wall fixedly connected with push pedal (25), bottom plate (1) top is close to right side department swing joint has finished car (9), bottom plate (1) top is close to right side department swing joint has baffle (10).

2. The wood board pressing device convenient for discharging for wood furniture production as claimed in claim 1, wherein: the hot water tank (18) is provided with a water inlet hole matched with the water inlet pipe, the right end of the water inlet pipe penetrates through the water inlet hole and is communicated with the inside of the hot water tank (18), the hot water tank (18) is provided with a water outlet hole matched with the water outlet pipe, and the left end of the water outlet pipe penetrates through the water outlet hole and is communicated with the inside of the hot water tank (18).

3. The wood board pressing device convenient for discharging for wood furniture production as claimed in claim 1, wherein: the two pressing wheels (17) are arranged in a bilateral symmetry mode by taking the central axis of the pressing plate (20) as a symmetry axis, and the front end and the rear end of each pressing wheel (17) are movably connected with the sliding rod (4) through a rotating shaft and a bearing respectively.

4. The wood board pressing device convenient for discharging for wood furniture production as claimed in claim 1, wherein: the top of the second cylinder (21) is close to the left side and the right side and is fixedly connected with supporting rods respectively, and the top ends of the supporting rods are fixedly connected with the bottom of the second air bin (22).

5. The wood board pressing device convenient for discharging for wood furniture production as claimed in claim 1, wherein: bottom plate (1) top is close to right side department from a left side to right side fixedly connected with two risers (19) in proper order, and riser (19) set up with U-shaped push rod (24) assorted perforation, U-shaped push rod (24) right-hand member passes the perforation and extends to the right side of riser (19) that are located the right side.

6. The wood board pressing device convenient for discharging for wood furniture production as claimed in claim 1, wherein: the side wall and the top of the left side of the finished product vehicle (9) are arranged in an open mode, grooves are formed in the positions, close to the left side and the right side, of the bottom of the finished product vehicle (9), the tops of inner cavities of the two grooves are fixedly connected with supports respectively, and the two supports are respectively and movably connected with universal wheels through rotating shafts and bearings.

7. The wood board pressing device convenient for discharging for wood furniture production as claimed in claim 1, wherein: the top end of the sliding rod (4) is fixedly connected with a limiting block, and the limiting block is positioned at the top of the mounting plate (3).

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