CN113895830B - Straight arm type pulling arm hook structure for sanitation truck - Google Patents
Straight arm type pulling arm hook structure for sanitation truck Download PDFInfo
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- CN113895830B CN113895830B CN202111236361.2A CN202111236361A CN113895830B CN 113895830 B CN113895830 B CN 113895830B CN 202111236361 A CN202111236361 A CN 202111236361A CN 113895830 B CN113895830 B CN 113895830B
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- hooking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
- B65F3/00—Vehicles particularly adapted for collecting refuse
- B65F3/24—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle
- B65F3/26—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle by tipping the tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/10—Waste collection, transportation, transfer or storage, e.g. segregated refuse collecting, electric or hybrid propulsion
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The application relates to a straight arm type pulling arm hook structure for an environmental sanitation vehicle, which relates to the technical field of pulling arm hooks and aims at solving the problem that the angle between a lifting hook and a suspension arm is fixed and the steering adjustment is inconvenient; the straight arm type pulling arm hook structure comprises a plurality of fixed straight arms and movable straight arms, wherein the movable straight arms are arranged between the adjacent fixed straight arms, the fixed straight arms are provided with opposite pulling hooks, the movable straight arms are provided with hooking pieces for hooking the opposite pulling hooks, and the hooking pieces comprise hooking arms and hooking heads; one end of the hooking arm is arranged on the movable straight arm, and a driving piece for driving the hooking arm to displace is arranged on the movable straight arm; the hooking head is rotatably arranged at the other end of the hooking arm, and a limiting piece for limiting the rotation position of the hooking head is further arranged on the movable straight arm. The application has the effect that the hooking head can be quickly separated from the alignment drag hook, thereby guaranteeing the application efficiency of the movable straight arm.
Description
Technical Field
The application relates to the technical field of arm hooks, in particular to a straight arm type arm hook structure for sanitation vehicles.
Background
Sanitation car is mostly through straight arm formula arm-pulling hook control railway carriage or compartment body slope certain angle to empty the rubbish in the railway carriage or compartment body. The straight arm type arm pulling hook structure is a structure for controlling the steering support of the straight arms by a plurality of groups of oil cylinders, wherein the lock hook is an important component for hooking and pulling the straight arms in the straight arm type arm pulling hook structure and limiting the positions of the straight arms.
Chinese patent publication No. CN204508579U discloses a replaceable pull arm car hook, comprising a hook and a boom. The lifting hook comprises a lifting hook body and a supporting boss, and the supporting boss is integrally formed at one end of the lifting hook body. One end of the suspension arm is arranged on the straight arm of the arm pulling vehicle, the other end of the suspension arm is provided with a groove which is adapted to the supporting boss, and the suspension arm is sleeved on the supporting boss through the groove and is positioned by a positioning pin. The connection part of the suspension arm and the lifting hook body is also provided with a fixed plugboard together, and the fixed plugboard is used for guaranteeing the connection strength of the suspension arm and the supporting boss.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: after the lifting hook is fixedly connected with the suspension arm, the angle between the lifting hook and the suspension arm is also fixed, so that the steering adjustment is inconvenient, the lifting hook is further unfavorable for being quickly separated from the straight arm, and the application efficiency of the straight arm is affected.
Disclosure of Invention
In order to solve the problem that steering adjustment is inconvenient due to fixed angle between a lifting hook and a lifting arm, the application provides a straight arm type arm pulling hook structure for an sanitation truck.
The application provides a straight arm type pulling arm hook structure for an environmental sanitation vehicle, which adopts the following technical scheme:
the straight arm type pulling arm hook structure for the sanitation truck comprises a plurality of fixed straight arms and movable straight arms, wherein the movable straight arms are arranged between the adjacent fixed straight arms, a butt pulling hook is arranged on each fixed straight arm, a hooking piece for hooking and pulling the butt pulling hook is arranged on each movable straight arm, and the hooking piece comprises a hooking arm and a hooking head; one end of the hooking arm is arranged on the movable straight arm, and a driving piece for driving the hooking arm to displace is arranged on the movable straight arm; the hooking head is rotatably arranged at the other end of the hooking arm, and a limiting piece for limiting the rotation position of the hooking head is further arranged on the movable straight arm.
By adopting the technical scheme, after the driving piece drives the hooking arm to move along the extending direction of the movable straight arm, the limiting piece limits the position of the hooking head relative to the movable straight arm, so that the hooking head rotates relative to the hooking arm, and further the hooking head is quickly separated from the opposite drag hook, so that the movable straight arm can rotate and run quickly relative to the fixed straight arm; the hooking head rotates relative to the hooking arm, so that the speed of the hooking head separating from the drag hook is accelerated, the time of steering operation of the movable straight arm is shortened, and the application efficiency of the movable straight arm is ensured.
Preferably, the driving member comprises a driving cylinder, a connecting sleeve and a connecting rod; the driving cylinder is arranged in the inner cavity of the movable straight arm, the connecting sleeve is arranged at one end of the output end of the driving cylinder, and the connecting rod penetrates through the connecting sleeve; one end of the connecting rod is in sliding fit with the inner side wall of the movable straight arm, and a displacement hole for the other end of the connecting rod to pass through and slide is formed in the movable straight arm in a penetrating manner; one end of the hooking arm far away from the hooking head is sleeved on the connecting rod.
By adopting the technical scheme, when the driving cylinder is in a contracted state, the connecting hook is abutted against one end of the displacement hole, which is close to the hooking head, and at the moment, the hooking arm exerts stable pushing acting force on the hooking head, so that the hooking head is stably hooked on the opposite drag hook, and the position stability of the movable straight arm relative to the fixed straight arm is ensured; the driving cylinder stretches out the output end, and the connecting rod supports tightly in the displacement hole one end that keeps away from the hook and links the head, and at this moment, the hook links the arm pulling hook and links the head, and the hook links the head and receive the locating action restriction of locating part, can only rotate relatively the hook and link the head, along with the rotation of hook links the head, the hook links the head and breaks away from to the drag hook fast to the quick relatively fixed straight arm of activity is turned to, is operated.
Preferably, the driving piece further comprises a movable block and two side plates; the two side plates are respectively arranged on the opposite side walls of the movable block, and the inner side walls of the movable straight arms are provided with preset grooves for the movable block and the side plates to simultaneously prop in and slide; one end of the connecting rod, which is far away from the hooking arm, is fixedly connected with the movable block.
Through adopting above-mentioned technical scheme, connecting rod and movable block fixed connection, movable block and side board support simultaneously and predetermine after the groove inner chamber, guaranteed the stability when the connecting rod slides, reduced the connecting rod and appear loosening after displacement and location and shake, the phenomenon of deviation, improved the positioning stability of hooking spare on the straight arm of activity.
Preferably, a positioning component is arranged between the hooking arm and the connecting rod, and the positioning component comprises a capacity expansion plate and a locking nut; the expansion plate is arranged on the side wall of the hooking arm, the connecting rod penetrates through the expansion plate and the hooking arm at the same time, the locking nut is in threaded fit with the connecting rod, and the locking nut is located at one end of the connecting rod away from the expansion plate.
By adopting the technical scheme, the capacity expansion plate increases the contact area between the hooking arm and the movable straight arm, and improves the position stability of the hooking arm on the movable straight arm; the locking nut is in threaded fit on the connecting rod so as to limit the positions of the hooking arms and the expansion plate on the connecting rod, and the phenomenon that the hooking arms shake loose and deviate along the length direction of the connecting rod is reduced.
Preferably, the connecting rod is provided with a counter-pulling spring, and one end of the counter-pulling spring far away from the connecting rod is fixedly connected with the limiting piece.
Through adopting above-mentioned technical scheme, tensioning between extension board and connection after to drawing the spring for form to drawing effort between connecting rod and the extension board, strengthened the joint strength and the stability when the hook link arm pulling hook link head, reduced the hook link head and break away from and appear loosening and shaking, the phenomenon of deviation behind the drag hook, ensured the application stability of the straight arm of activity.
Preferably, the limiting piece comprises a fixed plate, an extension plate and a limiting bolt; the fixed plate is arranged on the side wall of the movable straight arm, and the extension plate is arranged at one end of the fixed plate far away from the movable straight arm; the hooking head is provided with a groove hole for the rod body of the limit bolt to pass through, and the rod body of the limit bolt is simultaneously arranged on the extension plate and the groove hole in a penetrating way and is in threaded fit with the movable straight arm.
By adopting the technical scheme, the limit bolt is simultaneously penetrated through the extension plate and the hook connecting head, so that after the hook connecting head is pulled by the hook connecting arm, the position of the hook connecting head relative to the movable straight arm is fixed and can only rotate relative to the hook connecting arm, and the hook connecting head is conveniently and rapidly separated from the opposite draw hook; when the hooking head is separated from the opposite drag hook, the groove-shaped hole enables the hooking head to displace relative to the rod body of the limit bolt, so that the outer side wall of the hooking head is abutted against the fixed plate, and the stability of hooking of the hooking arm and the hooking head is guaranteed.
Preferably, the side wall of the extension plate far away from the movable straight arm is provided with a settling tank, and the end head of the limit bolt is positioned in the settling tank.
Through adopting above-mentioned technical scheme, limit bolt's end shrink in the subsider, reduced limit bolt's end protrusion outside the straight arm of activity phenomenon, improved the straight arm of activity and accomodate the smoothness nature between adjacent fixed straight arm.
Preferably, an external hook is arranged at one end of the opposite-pull spring, which is close to the extension plate, and a limiting block is arranged on the side wall, far away from the movable straight arm, of the extension plate; the limiting block is provided with a clamping groove for the external hook to be abutted into, the limiting block is provided with a screw rod for penetrating the external hook at the clamping groove, and the screw rod is provided with a clamping nut for fixing the external hook on the limiting block in a threaded fit manner.
Through adopting above-mentioned technical scheme, after external coupler supports into the joint groove inner chamber for to drawing spring and stopper lug quick connect, the lead screw passes external coupler, has further limited the position of external coupler in the joint inslot, has reduced the phenomenon of external coupler relative joint groove displacement, and the card is fixed the nut and is screwed up on the lead screw for external coupler is fixed fast on the stopper lug, and the operating personnel of being convenient for dismantle fast simultaneously is with renewing.
Preferably, the end of the opposite-pull spring far away from the external hook is provided with an external ring plate, the external ring plate is sleeved on the connecting rod, an external nut is further in threaded fit on the connecting rod, and the external nut is located at one end of the external ring plate far away from the movable straight arm.
Through adopting above-mentioned technical scheme, external annular plate cup joints on the connecting rod for to drawing spring quick and connecting rod fixed connection, external nut screw up on the connecting rod, effectively ensured the joint strength to drawing spring and connecting rod, simultaneously, the operating personnel of being convenient for dismantle fast.
In summary, the application has the following beneficial technical effects:
1. after the driving piece drives the hooking arm to move along the extending direction of the movable straight arm, the limiting piece limits the position of the hooking head relative to the movable straight arm, so that the hooking head rotates relative to the hooking arm, and further the hooking head is quickly separated from the opposite drag hook, so that the movable straight arm can rotate and run quickly relative to the fixed straight arm, and the application efficiency of the movable straight arm is ensured;
2. the opposite-pulling spring is stretched and then is tensioned between the extending plate and the connecting plate, opposite-pulling acting force is formed between the connecting rod and the extending plate, the connecting strength and stability of the hook connecting arm when the hook connecting head is pulled are enhanced, the phenomenon that the hook connecting head is separated from the drag hook and then is loosened and moved is reduced, and the application stability of the movable straight arm is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a straight arm type pulling arm hook structure for an sanitation vehicle in an embodiment of the application;
FIG. 2 is a schematic illustration of the connection of the hooking element to the movable straight arm in an embodiment of the application;
FIG. 3 is an exploded view of the connection of the drive cylinder, connecting rod and hooking arm, and the movable straight arm in an embodiment of the present application;
FIG. 4 is a schematic illustration of the connection of the connecting rod, the pull-to-pull spring and the extension plate in an embodiment of the present application;
fig. 5 is an enlarged schematic view of the portion a in fig. 4.
Reference numerals illustrate:
1. fixing the straight arm; 11. a drag hook; 2. a movable straight arm; 21. a displacement hole; 22. presetting a groove; 3. a hooking member; 31. a hooking arm; 32. a hooking head; 321. a through hole; 322. a slot-shaped hole; 4. a driving member; 41. a driving cylinder; 42. a connecting sleeve; 43. a connecting rod; 431. externally connecting a nut; 44. a movable block; 45. a side plate; 5. a positioning assembly; 51. a capacity expansion plate; 52. a locking nut; 6. a limiting piece; 61. a fixing plate; 62. an extension plate; 621. a settling tank; 63. a limit bolt; 7. a pull-up spring; 71. externally connecting a ring plate; 72. an external hook; 8. a limiting block; 81. a clamping groove; 82. a screw rod; 821. and clamping and fixing the nut.
Detailed Description
The embodiment of the application discloses a straight arm type pulling arm hook structure for an environmental sanitation vehicle.
The application is described in further detail below with reference to fig. 1-5.
Referring to fig. 1, the straight arm type pulling arm hook structure includes a plurality of fixed straight arms 1 and movable straight arms 2. The fixed straight arms 1 and the movable straight arms 2 are square steel pipes with hollow inner cavities, and each movable straight arm 2 is hinged between two adjacent fixed straight arms 1. The side wall of one fixed straight arm 1 is welded with a counter drag hook 11, and the movable straight arm 2 is welded with a hooking piece 3 matched with the counter drag hook 11. The movable straight arm 2 is hooked with the pair of draw hooks 11 through the hooking piece 3 so as to limit the position of the movable straight arm 2 relative to the fixed straight arm 1.
Referring to fig. 2, the hooking member 3 includes a hooking arm 31 and a hooking head 32. The hooking head 32 has a hook at one end for hooking the pair of hooks 11. The other end of the hooking head 32 is provided with a through hole 321, and the hooking head 32 is sleeved at one end of the hooking arm 31 in the length direction through the through hole 321 and positioned by a pin shaft, so that the hooking head 32 can rotate relative to the hooking arm 31.
Referring to fig. 3, the movable straight arm 2 is connected to the end of the hooking arm 31 remote from the hooking head 32 by means of a driving member 4, the driving member 4 comprising a driving cylinder 41 and a connecting sleeve 42. In this embodiment, the driving cylinder 41 is an electric cylinder, and the driving cylinder 41 is fixed to the inner cavity of the movable straight arm 2 through bolts. The connecting sleeve 42 is vertically welded to one end of the output end of the driving cylinder 41 in the length direction, a displacement hole 21 is formed in the side wall of the movable straight arm 2 in a penetrating manner, the inner diameter size of the displacement hole 21 is larger than that of the connecting sleeve 42, and the displacement hole 21 extends along the extending direction of the movable straight arm 2.
Referring to fig. 3, the driving member 4 further includes a connection rod 43. In this embodiment, the connecting rod 43 is a solid steel rod, and a plurality of threaded protrusions are integrally formed at one end of the outer edge of the connecting rod 43 in the length direction. After the connecting rod 43 passes through the connecting sleeve 42, one end of the connecting rod 43 passes through the displacement hole 21 and extends to the outside of the movable straight arm 2, and the other end of the connecting rod abuts against the inner side wall of the movable straight arm 2. The driving member 4 further comprises a movable block 44 and two side plates 45. The movable block 44 is welded to one end of the connecting rod 43 in the length direction, and the outer circumferential dimension of the movable block 44 is larger than the outer diameter dimension of the connecting rod 43. The two side plates 45 are welded to opposite side walls of the movable block 44, the side plates 45 extend along the length direction of the movable block 44, and the width dimension of the side plates 45 is smaller than the width dimension of the movable block 44.
Referring to fig. 3, an end of the connecting rod 43 remote from the displacement hole 21 is welded to a side wall of the movable block 44. The inner side wall of the movable straight arm 2 is provided with a preset groove 22, and the preset groove 22 is positioned at one end of the connecting sleeve 42 away from the displacement cylinder. After the movable block 44 and the side plate 45 simultaneously abut against the inner cavity of the preset groove 22, the fixed block and the side plate 45 displace along the extending direction of the preset groove 22 along with the extension of the driving cylinder 41, and the connecting rod 43 displaces along the extending direction of the displacement hole 21.
Referring to fig. 3, the hooking arm 31 is sleeved on the outer edge wall of the connecting rod 43, and when the driving member 4 drives the output end to perform telescopic displacement, the hooking arm 31 also moves relative to the extending direction of the movable straight arm 2. A positioning assembly 5 is also commonly arranged between the hooking arm 31 and the connecting rod 43, and the positioning assembly 5 comprises a capacity expansion plate 51. The expansion plate 51 is welded to the outer side wall of the hooking arm 31, the expansion plate 51 is located at one end of the hooking arm 31 away from the hooking head 32, and the peripheral dimension of the expansion plate 51 is greater than the width dimension of the hooking arm 31. The expansion plate 51 and the hooking arm 31 are sleeved on the connecting rod 43, and the expansion plate 51 is abutted between the hooking arm 31 and the movable straight arm 2, so as to increase the positioning stability of the hooking arm 31 on the connecting rod 43.
Referring to fig. 3, the positioning assembly 5 further includes a locking nut 52, the locking nut 52 is in threaded engagement with the outer edge of the connecting rod 43, and the locking nut 52 is located at one end of the expansion plate 51 away from the movable straight arm 2, so as to reduce the sliding phenomenon of the expansion plate 51 and the hooking arm 31 along the length direction of the connecting rod 43.
Referring to fig. 3 and 4, the movable straight arm 2 is further provided with a limiting member 6, and the limiting member 6 is located at the hooking head 32. The limiting piece 6 comprises a fixed plate 61, an extending plate 62 and a limiting bolt 63, wherein the fixed plate 61 is vertically welded on the outer side wall of the movable straight arm 2, and the extending plate 62 is vertically welded on one end, far away from the movable straight arm 2, of the fixed plate 61. The hooking head 32 is provided with a groove-shaped hole 322 in a penetrating manner, the groove-shaped hole 322 is used for allowing the rod body of the limit bolt 63 to pass through, and the length dimension of the groove-shaped hole 322 is larger than the outer diameter dimension of the rod body of the limit bolt 63.
Referring to fig. 2 and 3, after the rod body of the limit bolt 63 sequentially passes through the extension plate 62 and the slot hole 322, the thread is screwed into a preset thread slot on the outer side wall of the movable straight arm 2, so that the hooking head 32 is positioned between the extension plate 62 and the movable straight arm 2. After the hooking head 32 is hooked to the drag hook 11, the rod body of the limit bolt 63 abuts against one end of the slot 322 in the length direction, and when the output end of the driving cylinder 41 is in a contracted state, the connecting rod 43 abuts against one end of the displacement hole 21 close to the extension plate 62. At this time, the hooking arm 31 applies a pushing force to the hooking head 32, so that the hooking head 32 stabilizes the hooking of the hooking hook 11.
Referring to fig. 3 and 4, when the driving cylinder 41 extends outward of the output end, the connecting rod 43 slides in the extending direction of the displacement hole 21 and abuts against the end of the displacement hole 21 away from the extension plate 62. At this time, the hooking arm 31 pulls the hooking head 32 to displace toward the direction close to the displacement hole 21, the rod body of the limit bolt 63 abuts against the other end of the slot-shaped hole 322 in the length direction, the hooking head 32 is rapidly separated from the opposite drag hook 11, and the outer side wall of the hooking head 32 abuts against one end of the fixed plate 61 toward the ground, so that the movable straight arm 2 is rapidly turned relative to the fixed straight arm 1, and the application efficiency of the movable straight arm 2 is ensured.
Referring to fig. 4, a settling tank 621 is further provided on the side wall of the extension plate 62 away from the movable straight arm 2, and the settling tank 621 is used for accommodating the end of the limit bolt 63, so as to reduce the phenomenon that the end of the limit bolt 63 protrudes outside the extension plate 62.
Referring to fig. 3 and 4, a counter spring 7 is also commonly provided between the extension plate 62 and the connection rod 43, and in this embodiment, the counter spring 7 is a compression spring made of steel. An external annular plate 71 is integrally formed at one end of the opposite-pull spring 7 in the length direction, and the external annular plate 71 is sleeved on the outer edge wall of the connecting rod 43. The connecting rod 43 is further in threaded fit with an external nut 431, and after the external nut 431 is screwed on the connecting rod 43, the external ring plate 71 abuts against the space between the external nut 431 and the locking nut 52, so that the opposite-pulling spring 7 is fixedly connected with the connecting rod 43.
Referring to fig. 5, the other end of the opposite-pull spring 7 in the longitudinal direction is provided with an external hook 72. The lateral wall welding that extension board 62 kept away from activity straight arm 2 has stopper 8, and the lateral wall that extension board 62 was kept away from to stopper 8 is provided with joint groove 81, and after external hook 72 supported into joint groove 81 inner chamber for to drawing spring 7 and stopper 8 lug connection.
Referring to fig. 5, a screw rod 82 is vertically welded in the clamping groove 81 by the stopper 8, and one end of the screw rod 82 extends to the outside of the clamping groove 81. The external connection hook 72 is sleeved on the screw rod 82 to further limit the position of the external connection hook 72 relative to the limiting block 8, and a clamping nut 821 is in threaded fit on the screw rod 82 to fix the external connection hook 72 on the limiting block 8.
Referring to fig. 4, when the driving cylinder 41 is in the contracted state, the hooking head 32 hooks the counter hook 11, the hooking arm 31 and the extension plate 62 are close to each other, and the counter spring 7 is in the free extended state. When the driving cylinder 41 extends out of the output end, the hooking head 32 is separated from the opposite drag hook 11, the hooking arm 31 is far away from the extension plate 62, and at the moment, the opposite drag spring 7 is in a stretched and tensioned state, so that the stability of the hooking head 32 after being separated from the opposite drag hook 11 is ensured, and the movable straight arm 2 can conveniently rotate relative to the fixed straight arm 1.
The embodiment of the application discloses a straight arm type pulling arm hook structure for an environmental sanitation vehicle, which is implemented by the following principle: when the driving cylinder 41 is in the standby state, the output end of the driving cylinder 41 is in the contracted state. At this time, the connecting rod 43 abuts against one end of the displacement hole 21 near the extension plate 62, and the hooking arm 31 applies a pushing force to the hooking head 32, so that the hooking head 32 stabilizes the hooking of the hooking hook 11.
When the operator needs to use the movable straight arm 2, the driving cylinder 41 extends to the output end, the connecting rod 43 slides along the extending direction of the displacement hole 21 and abuts against one end of the displacement hole 21 far away from the extending plate 62, and the hooking arm 31 pulls the hooking head 32 to displace towards the direction approaching the displacement hole 21. The slot 322 of the hooking head 32 is displaced relative to the rod body of the limit bolt 63, and the hooking head 32 rotates relative to the hooking arm 31, so that the hooking head 32 is quickly separated from the opposite drag hook 11 until the outer side wall of the hooking head 32 abuts against one end of the fixed plate 61 facing the ground, and the opposite drag spring 7 is in a tensioning state. At this time, an operator can control the movable straight arm 2 to turn relative to the fixed straight arm 1, so that the application efficiency of the movable straight arm 2 is ensured.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. The utility model provides a straight arm formula arm-drag hook structure for sanitation car, includes a plurality of fixed straight arms (1) and activity straight arms (2), activity straight arms (2) set up between adjacent fixed straight arms (1), be provided with on fixed straight arms (1) to drag hook (11), be provided with on activity straight arms (2) and be used for the hook to drag hook (3), its characterized in that to drag hook (11): the hooking piece (3) comprises a hooking arm (31) and a hooking head (32); one end of the hooking arm (31) is arranged on the movable straight arm (2), and a driving piece (4) for driving the hooking arm (31) to displace is arranged on the movable straight arm (2); the hooking head (32) is rotatably arranged at the other end of the hooking arm (31), and the movable straight arm (2) is also provided with a limiting piece (6) for limiting the rotation position of the hooking head (32); the driving piece (4) comprises a driving cylinder (41), a connecting sleeve (42) and a connecting rod (43); the driving cylinder (41) is arranged in the inner cavity of the movable straight arm (2), the connecting sleeve (42) is arranged at one end of the output end of the driving cylinder (41), and the connecting rod (43) is arranged in the connecting sleeve (42) in a penetrating manner; one end of the connecting rod (43) is in sliding fit with the inner side wall of the movable straight arm (2), and a displacement hole (21) for the other end of the connecting rod (43) to pass through and slide is arranged on the movable straight arm (2) in a penetrating manner; one end of the hooking arm (31) far away from the hooking head (32) is sleeved on the connecting rod (43); the driving piece (4) further comprises a movable block (44) and two side plates (45); the two side plates (45) are respectively arranged on the opposite side walls of the movable block (44), and the inner side wall of the movable straight arm (2) is provided with a preset groove (22) for the movable block (44) and the side plates (45) to simultaneously prop in and slide; one end of the connecting rod (43) far away from the hooking arm (31) is fixedly connected with the movable block (44); a counter-pulling spring (7) is arranged on the connecting rod (43), and one end, far away from the connecting rod (43), of the counter-pulling spring (7) is fixedly connected with the limiting piece (6); a positioning component (5) is arranged between the hooking arm (31) and the connecting rod (43), and the positioning component (5) comprises a capacity expansion plate (51) and a locking nut (52); the expansion plate (51) is arranged on the side wall of the hooking arm (31), the connecting rod (43) is simultaneously arranged on the expansion plate (51) and the hooking arm (31) in a penetrating mode, the locking nut (52) is in threaded fit on the connecting rod (43), and the locking nut (52) is located at one end, far away from the expansion plate (51), of the connecting rod (43); the limiting piece (6) comprises a fixed plate (61), an extension plate (62) and a limiting bolt (63); the fixed plate (61) is arranged on the side wall of the movable straight arm (2), and the extension plate (62) is arranged at one end of the fixed plate (61) far away from the movable straight arm (2); the hooking head (32) is provided with a groove-shaped hole (322) for the rod body of the limit bolt (63) to pass through, and the rod body of the limit bolt (63) is simultaneously arranged on the extending plate (62) and the groove-shaped hole (322) in a penetrating manner and is in threaded fit with the movable straight arm (2).
2. The straight arm type pulling arm hook structure for sanitation vehicles according to claim 1, wherein: the side wall of the extension plate (62) far away from the movable straight arm (2) is provided with a settling tank (621), and the end head of the limit bolt (63) is positioned in the settling tank (621).
3. The straight arm type pulling arm hook structure for sanitation vehicles according to claim 1, wherein: an external hook (72) is arranged at one end, close to the extension plate (62), of the opposite-pull spring (7), and a limiting block (8) is arranged on the side wall, far away from the movable straight arm (2), of the extension plate (62); the limiting block (8) is provided with a clamping groove (81) for the external hook (72) to prop in, the limiting block (8) is provided with a screw rod (82) for penetrating the external hook (72) at the clamping groove (81), and a clamping nut (821) for fixing the external hook (72) on the limiting block (8) is in threaded fit with the screw rod (82).
4. The straight arm type pulling arm hook structure for sanitation vehicles according to claim 3, wherein: the one end that external hook (72) was kept away from to pull spring (7) is provided with external ring board (71), external ring board (71) cover is located on connecting rod (43), still screw thread fit has external nut (431) on connecting rod (43), external nut (431) are located external ring board (71) and keep away from the one end of activity straight arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236361.2A CN113895830B (en) | 2021-10-22 | 2021-10-22 | Straight arm type pulling arm hook structure for sanitation truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111236361.2A CN113895830B (en) | 2021-10-22 | 2021-10-22 | Straight arm type pulling arm hook structure for sanitation truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113895830A CN113895830A (en) | 2022-01-07 |
| CN113895830B true CN113895830B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111236361.2A Active CN113895830B (en) | 2021-10-22 | 2021-10-22 | Straight arm type pulling arm hook structure for sanitation truck |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN213892913U (en) * | 2020-12-21 | 2021-08-06 | 沈雪明 | Automatic releasing mechanism for unmanned aerial vehicle |
| CN214059674U (en) * | 2020-12-17 | 2021-08-27 | 扬州福艾沃机械有限公司 | Self preservation protects type draw arm hook |
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| CN200948954Y (en) * | 2006-09-01 | 2007-09-19 | 杭州专用汽车有限公司 | Pneumatic self-locking device for garbage shipping case |
| EP1932717A1 (en) * | 2006-12-14 | 2008-06-18 | Guima Palfinger | Hydraulic locking device for a lifting arm |
| CN201873015U (en) * | 2010-10-26 | 2011-06-22 | 北京航天动力研究所 | Automatic detacher |
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| CN209795289U (en) * | 2019-03-29 | 2019-12-17 | 斯科迪亚起重科技(深圳)有限公司 | Draw arm hook arm and tipping frame locking device |
| CN214059674U (en) * | 2020-12-17 | 2021-08-27 | 扬州福艾沃机械有限公司 | Self preservation protects type draw arm hook |
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|---|---|
| CN113895830A (en) | 2022-01-07 |
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