CN213412460U

CN213412460U - Concrete mixer

Info

Publication number: CN213412460U
Application number: CN202020976701.XU
Authority: CN
Inventors: 张飞; 曹有来; 张文平
Original assignee: Beijing Zhongshi Shangzhuang Concrete Co ltd
Current assignee: Beijing Zhongshi Shangzhuang Concrete Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-06-11
Anticipated expiration: 2030-06-01

Abstract

The utility model relates to a concrete mixer, which comprises a barrel body, wherein a rotating rod is arranged at the central axis of the barrel body and is rotationally connected with the side wall of the barrel body, and a power mechanism for driving the rotating rod to rotate around the central axis is arranged at the end part of the rotating rod, which passes through the bottom wall of the barrel body; the stirring rod is fixedly connected with a plurality of groups of stirring rods along the height direction of the stirring rod, the end part of each stirring rod facing the barrel body is provided with a scraping plate which can be attached to the inner wall of the barrel body, the stirring rods and the scraping plates are detachably connected through a connecting assembly device, the connecting assembly device comprises a male plugging mechanism arranged on the scraping plate, the end part of each stirring rod is provided with a female connecting mechanism capable of accommodating the male plugging mechanism to be inserted, and a fixing component for fixing the male plugging mechanism on the female connecting mechanism is arranged on the female connecting mechanism. The utility model has the advantages that: the scraper blade is connected with the stirring rod in a detachable mode, and the scraper blade is convenient to install and replace.

Description

Concrete mixer

Technical Field

The utility model belongs to the technical field of concrete mixing equipment's technique and specifically relates to a concrete mixer is related to.

Background

Concrete, referred to as "concrete" for short: refers to a general term for engineering composite materials formed by cementing aggregate into a whole by cementing materials. The term concrete generally refers to cement as a cementing material and sand and stone as aggregate; the cement concrete, also called as common concrete, is widely used in construction engineering, and the concrete is generally stirred by a stirrer and used for pouring of buildings after being stirred.

The current chinese utility model as authorizing bulletin number is CN207256548U discloses an rabbling mechanism for concrete production, including rabbling mechanism main part, vibrating motor, high pressure water jet, second puddler, first stirring scraper blade and third puddler, the inside of rabbling mechanism main part is provided with the dwang, and the dwang is connected with first puddler, vibrating motor sets up the below in the rabbling mechanism main part outside, the inside on rabbling mechanism main part top is inlayed to the high pressure water jet, and the below of rabbling mechanism main part is provided with the discharge gate, second puddler and third puddler set up on the dwang, and the outer end of second puddler and third puddler is connected with second stirring scraper blade, first stirring scraper blade sets up in the outside of first puddler, and all is provided with the through-hole on first stirring scraper blade and the second stirring scraper blade. This rabbling mechanism for concrete production is provided with first stirring scraper blade on first puddler, is favorable to further getting rid of concrete on the rabbling mechanism main part inner wall.

The above prior art solutions have the following drawbacks: because at the in-process that uses this rabbling mechanism, the friction is more between the inner wall of scraper blade and mixer mechanism main part, and when the scraper blade produced great wearing and tearing, the staff need dismantle the change to the scraper blade, nevertheless because dismantle between scraper blade among the above-mentioned rabbling mechanism and the puddler comparatively difficultly, reduced work efficiency, the urgent need be solved.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art existence, one of the purposes of the utility model is to provide a concrete mixer, its advantage is: the scraper blade is connected with the stirring rod in a detachable mode, and the scraper blade is convenient to install and replace.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a concrete mixer comprises a barrel body, wherein a rotating rod is arranged at the central axis of the barrel body and is rotationally connected with the side wall of the barrel body, and a power mechanism for driving the rotating rod to rotate around the central axis of the rotating rod is arranged at the end part of the rotating rod penetrating through the bottom wall of the barrel body; the stirring rod is fixedly connected with a plurality of groups of stirring rods along the height direction of the stirring rod, the end part of each stirring rod facing the barrel body is provided with a scraping plate which can be attached to the inner wall of the barrel body, the stirring rods and the scraping plates are detachably connected through a connecting assembly device, the connecting assembly device comprises a male plugging mechanism arranged on the scraping plate, the end part of each stirring rod is provided with a female connecting mechanism capable of accommodating the male plugging mechanism to be inserted, and a fixing component for fixing the male plugging mechanism on the female connecting mechanism is arranged on the female connecting mechanism.

By adopting the technical scheme, when an operator uses the connecting and assembling device to install the scraper on the stirring rod, the male plugging mechanism is firstly inserted into the female connecting mechanism, and then the male plugging mechanism is fixed in the female connecting mechanism through the fixing component; through setting up the connection assembly device, the operation personnel just grind when serious at the tube sheet and carry out quick assembly disassembly to the scraper blade to promote the dismouting efficiency of scraper blade.

The present invention may be further configured in a preferred embodiment as: public insertion mechanism is including setting up the card post on the scraper blade, be provided with on the global of card post can with the mutual joint complex lug of fixed subassembly, the sand grip is rectangular shape setting, and sand grip and the axis parallel arrangement of card post.

By adopting the technical scheme, an operator only needs to insert the clamping column into the female connecting mechanism and then can fix the bump through the fixing component, so that the clamping column is quickly fixed, and the fixing device is simple and convenient; the sand grip is the setting of rectangular shape, and sand grip and the axis parallel arrangement of card post to promote the joint cross sectional area between sand grip and the fixed subassembly, thereby make the joint more stable.

The present invention may be further configured in a preferred embodiment as: the middle part of the lug is provided with a groove which is mutually clamped and matched with the fixing component.

Through adopting above-mentioned technical scheme, the area of contact of card post and fixed subassembly can further be promoted in the setting of recess, promotes the joint effect.

The present invention may be further configured in a preferred embodiment as: female coupling mechanism is used for holding a card post male card section of thick bamboo including setting up at the puddler tip, offer on card section of thick bamboo global and be used for the fixed subassembly and block the operation hole of mutual complex of post, the operation hole be waist shape slot hole and with the axis parallel arrangement of a card section of thick bamboo, the internal diameter of a card section of thick bamboo and the diameter looks adaptation of a card post, and offer the spacing groove that slides that is used for the lug to slide into a card section of thick bamboo along its axis direction on the inside wall of a card section of thick bamboo.

By adopting the technical scheme, when the male insertion mechanism and the female connection mechanism are connected with each other, an operator can align the lug and the sliding limiting groove with each other and insert the clamping column into the clamping cylinder, and then the clamping column is fixed in the clamping cylinder by the mutual matching of the fixing component, the raised line and the groove through the operation hole; the cooperation each other of limiting groove and sand grip that slides not only can make things convenient for the card post to slide into a card section of thick bamboo, can restrict moreover that the card post takes place to rotate in a card section of thick bamboo to convenient fixed subassembly is to the fixed of card post.

The present invention may be further configured in a preferred embodiment as: the fixing component comprises a fixing plate, one side of the fixing plate is hinged to the side wall of the clamping cylinder, the fixing plate can cover the operation hole around a hinged point of the fixing plate and the clamping cylinder, and a clamping groove for accommodating a protruding block to be inserted and a clamping block capable of being inserted into the groove are arranged on the side wall of the fixing plate facing the operation hole.

Through adopting above-mentioned technical scheme, fixed subassembly during operation, the staff only need rotate the fixed plate around its and a calorie section of thick bamboo articulated lateral wall and cover on the handle hole, through the extrusion afterwards for the lug inserts into the draw-in groove, and the fixture block inserts in the recess, and the realization fixed plate is fixed to the joint of calorie post.

The present invention may be further configured in a preferred embodiment as: the circumferential surface of the clamping cylinder is in threaded connection with a fixing nut used for limiting the fixing plate to rotate away from the clamping cylinder.

Through adopting above-mentioned technical scheme, when the fixed plate leaned on the handle hole, fixation nut can twist soon through the screw-thread fit with a card section of thick bamboo and cover on the fixed plate to fixing the fixed plate is stable on a card section of thick bamboo, reducing the fixed plate and changeing from the possibility of a card section of thick bamboo, thereby make the fixed plate more stable to the fixed of card post.

The present invention may be further configured in a preferred embodiment as: a jacking component used for jacking the scraper to be attached to the inner wall of the barrel body is arranged between one end of the clamping column and the scraper; the top is held the subassembly and is included the coaxial sleeve that sets up on the card post, the sleeve seals the setting towards the tip of puddler, it is connected with the top and is held the pole to slide in the sleeve, the top is held the pole and is inserted telescopic tip and sleeve blind end and be provided with the top and hold the spring, the scraper blade setting is held the pole at the top and is deviated from telescopic tip.

By adopting the technical scheme, the side wall of the scraper can be always supported by the supporting spring and attached to the side wall of the barrel body by the supporting component; when the material that glues on the staving inner wall is great, the scraper blade passes through, and the elastic deformation that the spring can take place to contract is held in the top, and then reduces the rigid contact of scraper blade and staving inner wall to reduce the loss of scraper blade, prolong the life of scraper blade.

The present invention may be further configured in a preferred embodiment as: the telescopic structure is characterized in that sliding grooves are symmetrically formed in the inner side wall of the sleeve along the radial direction of the inner side wall of the sleeve, the size of each sliding groove is smaller than the length of the sleeve, the sliding grooves are not mutually opened with the side wall of the end portion of the sleeve, and sliding blocks capable of sliding along the length direction of the sliding grooves are fixedly connected to the circumferential surface of the jacking rod.

Through adopting above-mentioned technical scheme, the setting of spout and slider not only can make the top hold the pole more stable with telescopic being connected, but also can reduce the relative sleeve of top hold pole and take place pivoted possibility for the scraper blade pastes to leaning on of staving inner wall more stably.

To sum up, the utility model discloses a following beneficial technological effect:

1. by arranging the connecting and assembling device, an operator can quickly disassemble and assemble the scraper when the tube plate is seriously ground, so that the disassembling and assembling efficiency of the scraper is improved;

2. the side wall of the scraper can be always supported by the supporting spring and attached to the side wall of the barrel body through the supporting assembly; when the material adhered to the inner wall of the barrel body is large, the jacking spring can generate elastic deformation due to contraction when the scraper passes through, so that the rigid contact between the scraper and the inner wall of the barrel body is reduced, the loss of the scraper is reduced, and the service life of the scraper is prolonged;

3. the setting of spout and slider not only can make the top hold the pole more stable with telescopic being connected, but also can reduce the relative sleeve of top hold pole and take place pivoted possibility for the scraper blade pastes to leaning on of staving inner wall more stably.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram for showing the matching relationship between the material door plate and the material outlet.

Fig. 3 is a sectional view showing the internal structure of the tub.

Fig. 4 shows a top view of the drive assembly structure.

FIG. 5 is a schematic diagram showing the drive assembly sliding the left and right plates to extreme positions.

FIG. 6 is a schematic view showing the installation relationship between the stirring rod and the scraper.

Fig. 7 is an exploded view showing the mating relationship between the male plug mechanism and the female connection mechanism.

Fig. 8 is a partially enlarged view of a portion a of fig. 7, which is a sectional view showing an inner structure of the sleeve.

In the figure, 1, a barrel body; 11. a discharge port; 12. a material door plate; 13. a dust-proof barrel; 131. a dust collection hole; 14. a dust chamber; 141. a water outlet hole; 15. a handle; 16. a rotating rod; 161. a stirring rod; 2. a mounting frame; 3. a dust removal mechanism; 31. a closing plate; 311. a left panel; 3111. a sealing groove; 312. a right plate; 3121. a sealing strip; 313. a sealing plate; 314. a first sliding block; 315. a second sliding block; 32. a drive assembly; 321. a screw; 3211. screwing the disc; 322. a restraining bar; 33. a dust collection pipe; 34. a dust collector; 35. a communicating pipe; 36. a dust collection box; 37. sealing the flange; 4. mounting a plate; 41. a through hole; 5. a power mechanism; 51. a drive motor; 52. a speed reducer; 6. connecting the assembling devices; 61. a male plug-in mechanism; 611. clamping the column; 6111. a bump; 6112. a groove; 62. a female connection mechanism; 621. clamping the cylinder; 6211. an operation hole; 6212. a sliding limiting groove; 63. a fixing assembly; 631. a fixing plate; 6311. a card slot; 6312. a clamping block; 632. a hinge plate; 633. fixing a nut; 7. a squeegee; 8. a jacking assembly; 81. a sleeve; 811. a chute; 82. a holding rod; 821. a slider; 83. the spring is supported.

Detailed Description

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

Referring to fig. 2 and 3, the concrete mixer disclosed by the present invention comprises a cylindrical barrel 1, wherein the barrel 1 is vertically arranged on the ground through a mounting frame 2; the upper side of the barrel body 1 is provided with an opening for feeding; a discharge port 11 is formed in the bottom wall of the barrel body 1, the discharge port 11 is arranged in a fan shape, a material door plate 12 covers the discharge port 11, and the material door plate 12 is arranged in parallel with the horizontal plane; a dustproof barrel 13 is coaxially arranged on the outer side of the barrel body 1, the dustproof barrel 13 and the barrel body 1 are arranged on the same bottom wall, and a dust removing chamber 14 is arranged between the dustproof barrel 13 and the barrel body 1; the feed door plate 12 is rotatably connected with the outer side wall of the dustproof barrel 13, a handle 15 convenient for workers to screw the feed door plate 12 is fixedly connected with the bottom wall of the feed door plate 12, and after concrete is stirred, the workers can rotate the feed door plate 12 around the rotating connection point of the feed door plate and the dustproof barrel 13 through the handle 15, so that concrete in the barrel body 1 falls on other conveying devices through the discharge port 11; five water outlet holes 141 which are uniformly distributed are formed in the side wall of the dust removing chamber 14 facing the charging door panel 12, after the stirring of the stirrer is finished, dust falls on the bottom wall of the dust removing chamber 14, and at the moment, the dust is washed by water facing the dust removing chamber 14, so that the dust flows out through the water outlet holes 141 under the washing of water flow; when the stirrer stirs, the material door plate 12 seals the water outlet hole 141, so that the possibility of dust leakage from the water outlet hole 141 is reduced; the upper opening of the dustproof barrel 13 is arranged above the opening of the barrel body 1, and the dustproof barrel 13 is provided with a dust removal mechanism 3 for reducing dust leakage.

Referring to fig. 2 and 3, the dust removing mechanism 3 includes a closing plate 31 for closing the opening of the dust-proof tub 13, the closing plate 31 is divided into a left plate 311 and a right plate 312, and the cross sections of the left plate 311 and the right plate 312 are arranged in a semicircular shape; sealing plates 313 extend downwards from the outer peripheral surfaces of the left plate 311 and the right plate 312, and when the driving assembly 32 covers the left plate 311 and the right plate 312 on the dustproof barrel 13 respectively, the sealing plates 313 are attached to the outer side wall of the dustproof barrel 13 to seal the side wall of the dustproof barrel 13; a sealing groove 3111 is formed in the side wall of the left plate 311 facing the right plate 312 along the length direction of the left plate, and the size of the sealing groove 3111 is smaller than the diameter of the left plate 311; a sealing strip 3121 which can be inserted into the sealing groove 3111 is fixedly connected to the side wall of the right plate 312 facing the left plate 311; when the left plate 311 and the right plate 312 are tightly attached, the sealing strip 3121 is inserted into the sealing groove 3111, and the two can be tightly attached, thereby reducing the possibility of dust leakage between the left plate 311 and the right plate 312; the dustproof barrel 13 is provided with a driving component 32 which slides the left plate 311 and the right plate 312 to close the opening of the dustproof barrel 13; the side wall of the dustproof barrel 13 is communicated with a dust suction pipe 33, the side wall of the end part of the dust suction pipe 33 is fixedly connected with the side wall of the dustproof barrel 13, and the side wall of the dustproof barrel 13 facing the dust suction pipe 33 is provided with a plurality of dust suction holes 131, so that dust can conveniently enter the dust suction pipe 33; the other end of the dust suction pipe 33 is communicated with a dust suction machine 34, the other side of the dust suction machine 34 is communicated with a dust collection box 36 through a communicating pipe 35, the end parts of the communicating pipe 35 and the dust collection box 36, which are in mutual contact, are detachably connected through a sealing flange 37, so that the dust collection box 36 is convenient to install and replace, meanwhile, after dust in the dust collection box 36 is gathered to a certain degree, the communicating pipe 35 can be detached through the sealing flange 37, and then the dust in the dust collection box is placed in the barrel body 1 again for reutilization.

When the staff is using this mixer, place grit aggregate such as concrete in staving 1 after, through the opening that drive assembly 32 drive closing plate 31 closed dust bucket 13, make staving 1 be located dust bucket 13 and form a confined stirring environment, the dust that the stirring in-process produced can enter into the clean room 14 between staving 1 and the dust bucket 13, open dust catcher 34 afterwards, collect the dust in the clean room 14 in dust collection box 36 through dust absorption pipe 33, when stirring next time, can place the dust in dust collection box 36 and carry out secondary cyclic utilization in staving 1, thereby reduce extravagantly.

Referring to fig. 3 and 4, a mounting plate 4 for mounting a driving device is arranged on the side wall of the dustproof barrel 13, the vertical section of the mounting plate 4 is arranged in a U shape, the outer peripheral surface of the mounting plate 4 is arranged in a rectangular shape, and the side wall of the mounting plate 4, which is attached to the dustproof barrel 13, is adapted to the outer diameter of the dustproof barrel 13; the mounting plate 4 is provided with through holes 41 for the left plate 311 and the right plate 312 to slide symmetrically with the vertical opposite side wall of the horizontal plane, the through holes 41 are provided along the length direction of the side wall of the mounting plate 4, the length of the through holes 41 is matched with the diameter of the left plate 311 or the right plate 312, and the height of the through holes 41 is matched with the height of the left plate 311 or the right plate 312. The driving assembly 32 comprises a screw 321 arranged on the side wall of the mounting plate 4, two ends of the screw 321 are respectively connected with the side wall of the mounting plate 4 in a rotating manner, the rotating connection point of the screw 321 and the mounting plate 4 is arranged at the end part of the through hole 41, and the screw 321 penetrates through the side wall of the mounting plate 4 and is coaxially and fixedly connected with a screwing disc 3211; opposite threads are arranged from the middle part to the two ends of the screw rod 321, two sides of the left plate 311 and the right plate 312, which are attached to each other, are fixedly connected with a first sliding block 314 and a second sliding block 315 respectively, two sides of the middle part of the screw rod 321 penetrate through the two first sliding blocks 314 on the same side of the left plate 311 and the right plate 312 respectively and are in threaded connection with the two first sliding blocks 314, a limiting rod 322 penetrates through the two second sliding blocks 315, the limiting rod 322 and the screw rod 321 are arranged in parallel, two ends of the limiting rod 322 are fixedly connected with the side wall of the mounting plate 4 respectively, and the fixing point where the limiting rod 322 and the mounting plate 4 are in mutual contact is arranged at the end part of the.

Referring to fig. 5, when the driving assembly 32 works, a worker only needs to rotate the screw rod 321 to drive the first sliding block 314 to move towards or away from each other along the length direction of the screw rod 321, so as to slide the left plate 311 and the right plate 312 away from or close the opening of the dust-proof barrel 13; the limiting rod 322 and the second sliding block 315 are arranged such that when one side of the left plate 311 and the right plate 312 slides along the length direction of the screw 321, the other side of the left plate 311 and the right plate 312 slides more stably under the limitation of the limiting rod 322.

Referring to fig. 2 and 3, a rotating rod 16 is arranged at the central axis of the barrel body 1, one end of the rotating rod 16 passes through the side wall of the barrel body 1 and is rotatably connected with the side wall of the barrel body 1 through a sealing bearing (not shown), and a power mechanism 5 for driving the rotating rod 16 to rotate around the central axis is arranged at the end part of the rotating rod 16 passing through the bottom wall of the barrel body 1; the power mechanism 5 comprises a driving motor 51 arranged at the bottom of the barrel body 1 and a speed reducer 52 arranged at the end part of the driving motor 51, the side wall of the speed reducer 52 is fixedly connected with the bottom wall of the barrel body 1, the rotating rod 16 penetrates through the bottom end of the barrel body 1 and is connected with the speed reducer 52, the output shaft of the driving motor 51 is connected with the speed reducer 52, and the side wall of the driving motor 51 facing the side wall is fixedly connected with the side wall of the speed reducer 52; when the power mechanism 5 works, a worker can turn on the driving motor 51, the rotation of the driving motor 51 further drives the speed reducer 52 to rotate, and the speed reducer drives the rotating rod 16 connected with the speed reducer to rotate. Four groups of stirring rods 161 are uniformly and fixedly connected to the circumferential surface of the rotating rod 16 along the height direction of the rotating rod, each group of stirring rods 161 is provided with four stirring rods 161, the four stirring rods 161 in the same group are arranged in a cross shape, the stirring rods 161 are arranged in parallel with the bottom wall of the barrel body 1, the end part of each stirring rod 161 facing the barrel body 1 is detachably connected with a scraper 7 which can be attached to the inner wall of the barrel body 1 through a connecting and assembling device 6, the scraper 7 is arranged in a rectangular plate manner, and the side wall of each scraper 7 facing the barrel body 1 is arranged in a; the scraper 7 is made of rubber with strong hardness, so that the scraping damage of the scraper 7 to the side wall of the barrel body 1 is reduced.

Referring to fig. 6 and 7, the connection assembly device includes a male plug-in mechanism 61 disposed on the scraper 7, a female connection mechanism 62 for receiving the male plug-in mechanism 61 to be inserted is disposed at an end of the stirring rod 161, and a fixing assembly 63 for fixing the male plug-in mechanism 61 on the female connection mechanism 62 is disposed on the female connection mechanism 62.

Referring to fig. 7 and 8, the male plug-in mechanism 61 includes a clamping column 611 disposed on the scraper 7, and one end of the clamping column 611 and the scraper 7 are connected to each other through a jacking assembly 8; the jacking assembly 8 comprises a sleeve 81 coaxially arranged at the end part of the clamping column 611, the end part of the sleeve 81 facing the clamping column 611 is arranged in a closed manner, and the closed end of the sleeve 81 is fixedly connected with the clamping column 611; a supporting rod 82 is coaxially connected in the sleeve 81 in a sliding manner, a supporting spring 83 is arranged at the end part of the supporting rod 82 inserted into the sleeve 81 and the closed end of the sleeve 81, two ends of the supporting spring 83 are respectively abutted against the supporting rod 82 and the side wall of the sleeve 81, and the scraper 7 is clamped at the end part of the supporting rod 82 departing from the sleeve 81; the inner side wall of the sleeve 81 is symmetrically provided with sliding grooves 811 along the radial direction, the size of each sliding groove 811 is smaller than the length of the sleeve 81, the sliding grooves 811 are not opened with the side wall of the end part of the sleeve 81, the peripheral surface of the jacking rod 82 is fixedly connected with a sliding block 821 which can slide along the length direction of the sliding grooves 811, and the sliding grooves 811 and the sliding block 821 are matched with each other, so that the jacking rod 82 is more stably connected with the sleeve 81, the possibility that the jacking rod 82 rotates relative to the sleeve 81 can be reduced, and the scraper 7 can more stably attach to the inner wall of the barrel body 1; the peripheral face of the clamping column 611 is provided with a convex block 6111 which can be in mutual clamping fit with the fixing component 63, the convex strip is arranged in a long strip shape, the cross section of the convex strip is arranged in an arc shape, the convex strip is arranged in parallel with the axis of the clamping column 611, and the middle part of the convex block 6111 is provided with a groove 6112 which is in mutual clamping fit with the fixing component 63.

Referring to fig. 6 and 7, the female connecting mechanism 62 includes a clamping cylinder 621 disposed at an end of the stirring rod 161 for accommodating the insertion of the clamping column 611, one end of the clamping cylinder 621 is a closed structure, and the closed end of the clamping cylinder 621 is fixedly connected to a side wall of the end of the stirring rod 161; an operation hole 6211 for fixing the assembly 63 and the clamping column 611 to be matched with each other is formed in the peripheral surface of the clamping cylinder 621, the operation hole 6211 is a waist-shaped long hole and is arranged in parallel with the axis of the clamping cylinder 621, and the convex strip is arranged towards the direction of the operation hole 6211 when the clamping cylinder is installed; the inner diameter of the clamping cylinder 621 is matched with the diameter of the clamping column 611, and the outer diameter of the sleeve 81 is matched with the outer diameter of the clamping cylinder 621, so that the distance of the clamping column 611 inserted into the clamping cylinder 621 is limited; offer the spacing groove 6212 that slides that is used for lug 6111 to slide into a card section of thick bamboo 621 on the inside wall of a card section of thick bamboo 621 along its axial direction, the spacing groove 6212 that slides mutually supports with the sand grip, not only can make things convenient for card post 611 to slide into a card section of thick bamboo 621, can restrict moreover that card post 611 takes place to rotate in a card section of thick bamboo 621 to make things convenient for fixed subassembly 63 to the fixed of card post 611.

Referring to fig. 6 and 7, the fixing assembly 63 includes a fixing plate 631, the fixing plate 631 is an arc-shaped plate, and the fixing plate 631 can be completely embedded in the operation hole 6211, so that the clamping cylinder 621 forms a complete cylinder; one side of the fixing plate 631 is hinged with the side wall of the clamping cylinder 621 through a hinge plate 632, the side wall of the fixing plate 631 facing away from the operation hole 6211 is fixedly connected with the side wall of the hinge plate 632, one end of the hinge plate 632 is hinged with the side wall of the clamping cylinder 621 close to the sleeve 81, and the fixing plate 631 can cover the operation hole 6211 around the hinge point of the hinge plate 632 and the clamping cylinder 621; a clamping groove 6311 for accommodating the protrusion 6111 to be inserted is formed in the side wall of the fixing plate 631 facing the operation hole 6211, a clamping block 6312 capable of being inserted into the groove 6112 is fixedly connected to the side wall of the fixing plate 631, and the side wall of the clamping block 6312 departing from the fixing plate 631 is matched with the side wall of the groove 6112; the fixing nut 633 is connected to the circumferential surface of the clamping cylinder 621 through threads, the fixing nut 633 is located between the hinge plate 632 and the stirring rod 161, when the fixing plate 631 abuts against the operation hole 6211, the fixing nut 633 can be screwed on the fixing plate 631 through matching with the threads of the clamping cylinder 621, so that the fixing plate 631 is stably fixed to the clamping cylinder 621, the possibility that the fixing plate 631 rotates away from the clamping cylinder 621 is reduced, and the fixing of the fixing plate 631 to the clamping column 611 is more stable.

When an operator uses the connecting and assembling device to install the scraping plate 7 on the stirring rod 161, the propping rod 82 can be pressed and contracted in the sleeve 81, the occupied space of the propping rod 82 is reduced, then the projection 6111 and the sliding limiting groove 6212 can be aligned with each other and the clamping column 611 is inserted into the clamping cylinder 621, then the fixing plate 631 is rotatably covered on the operation hole 6211 through the hinge joint of the hinge joint 632 and the clamping cylinder 621, at the moment, the projection 6111 is inserted into the clamping groove 6311, the clamping block 6312 is inserted into the groove 6112, the preliminary clamping and fixing of the fixing plate 631 on the clamping column 611 is realized, then the fixing plate 631 is fixed on the clamping cylinder 621 through the fixing nut 633, the mutual fixing of the clamping column 611 and the clamping cylinder 621 is realized, further, the scraping plate 7 and the stirring rod 161 can be detachably connected with each other, and when the scraping plate 7 is worn, the worker can conveniently detach and replace the same.

The implementation principle of the embodiment is as follows: install scraper blade 7 on puddler 161 through the connection assembly subassembly, place grit aggregate such as concrete back in staving 1, drive the opening that sealing plate 31 closed dust proof bucket 13 through drive assembly 32, make staving 1 be located dust proof bucket 13 and form a confined stirring environment, the dust that the stirring in-process produced can enter into the clean room 14 between staving 1 and the dust proof bucket 13, open dust catcher 34 afterwards, collect the dust in clean room 14 in dust collection box 36 through dust absorption pipe 33, when stirring next time, can place the dust in dust collection box 36 and carry out secondary cyclic utilization in staving 1, thereby reduce extravagantly.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A concrete mixer comprises a barrel body (1), wherein a rotating rod (16) is arranged at the central axis of the barrel body (1), the rotating rod (16) is rotatably connected with the side wall of the barrel body (1), and a power mechanism (5) for driving the rotating rod (16) to rotate around the central axis is arranged at the end part of the rotating rod (16) penetrating through the bottom wall of the barrel body (1); the even rigid coupling of its direction of height is followed on the global of bull stick (16) has a plurality of groups puddler (161), and puddler (161) are provided with scraper blade (7) that can paste on staving (1) inner wall towards the tip of staving (1), its characterized in that: can dismantle the connection through connection assembly device (6) between puddler (161) and scraper blade (7), connection assembly device (6) is including setting up public grafting mechanism (61) on scraper blade (7), puddler (161) tip is provided with can hold public grafting mechanism (61) male female coupling mechanism (62), be provided with on female coupling mechanism (62) and fix public grafting mechanism (61) fixed subassembly (63) on female coupling mechanism (62).

2. A concrete mixer according to claim 1, wherein: the male plug-in mechanism (61) comprises a clamping column (611) arranged on the scraper (7), a convex block (6111) which can be in clamping fit with the fixing component (63) is arranged on the circumferential surface of the clamping column (611), the convex block (6111) is arranged in a long strip shape, and the convex block (6111) and the axis of the clamping column (611) are arranged in parallel.

3. A concrete mixer according to claim 2, wherein: the middle part of the bump (6111) is provided with a groove (6112) which is mutually clamped and matched with the fixing component (63).

4. A concrete mixer according to claim 3, wherein: female coupling mechanism (62) are including setting up at puddler (161) tip and be used for holding the inserted card section of thick bamboo (621) of card post (611), offer on the global of card section of thick bamboo (621) and be used for fixed subassembly (63) and card post (611) operation hole (6211) of mutually supporting, operation hole (6211) are waist shape slot hole and with the axis parallel arrangement of card section of thick bamboo (621), the internal diameter of card section of thick bamboo (621) and the diameter looks adaptation of card post (611), and offer along its axial direction on the inside wall of card section of thick bamboo (621) and be used for lug (6111) to slide into the spacing groove (6212) that slides of card section of thick bamboo (621).

5. A concrete mixer according to claim 4, wherein: the fixing assembly (63) comprises a fixing plate (631), one side of the fixing plate (631) is hinged to the side wall of the clamping cylinder (621), the fixing plate (631) can cover the operation hole (6211) around a hinge point of the fixing plate and the clamping cylinder (621), and a clamping groove (6311) for accommodating the insertion of the protruding block (6111) and a clamping block (6312) capable of being inserted into the groove (6112) are arranged on the side wall, facing the operation hole (6211), of the fixing plate (631).

6. A concrete mixer according to claim 5, wherein: the circumferential surface of the clamping cylinder (621) is in threaded connection with a fixing nut (633) used for limiting the fixing plate (631) to rotate away from the clamping cylinder (621).

7. A concrete mixer according to claim 6, wherein: a jacking component (8) used for jacking the scraper (7) to be attached to the inner wall of the barrel body (1) is arranged between one end of the clamping column (611) and the scraper (7); the jacking assembly (8) comprises a sleeve (81) coaxially arranged on the clamping column (611), the sleeve (81) is arranged towards the end part of the stirring rod (161) in a sealing mode, the jacking rod (82) is connected to the sleeve (81) in a sliding mode, a jacking spring (83) is arranged at the end part, inserted into the sleeve (81), of the jacking rod (82) and the closed end of the sleeve (81), and the scraper (7) is arranged at the end part, deviated from the sleeve (81), of the jacking rod (82).

8. A concrete mixer according to claim 7, wherein: the inner side wall of the sleeve (81) is symmetrically provided with sliding grooves (811) along the radial direction, the size of each sliding groove (811) is smaller than the length of the sleeve (81), the sliding grooves (811) and the side wall of the end part of the sleeve (81) are not mutually open, and the peripheral surface of the jacking rod (82) is fixedly connected with a sliding block (821) capable of sliding along the length direction of the sliding grooves (811).