CN210505321U - Lifting hook fixing device of truck crane - Google Patents

Abstract

The utility model relates to a lifting hook fixing device of truck crane, which belongs to the technical field of truck cranes and comprises a crane body, wherein the crane body is provided with a crane body, the crane body is provided with a lifting hook, the crane body is also provided with a fixing mechanism, the fixing mechanism comprises a telescopic part, the telescopic part is provided with a buckle part, the buckle part comprises a buckle seat, the buckle seat is arranged on the telescopic part, the buckle seat is provided with a first snap ring, the first snap ring is rotatably provided with a second snap ring, the buckle seat is internally provided with a mounting groove, a clamping rod is rotatably arranged in the mounting groove, the clamping rod is provided with a first ratchet bar, the second snap ring is provided with a second ratchet bar, the first ratchet bar is meshed with the second ratchet bar, and a bent elastic clamping piece is also arranged in the mounting groove; a clamping block is also arranged in the mounting groove and is tightly propped against the clamping rod; the buckle seat is also provided with a release component. The utility model discloses have and to carry out the effect fixed with the lifting hook.

Description

Lifting hook fixing device of truck crane

Technical Field

The utility model belongs to the technical field of the technique of truck crane and specifically relates to a lifting hook fixing device of truck crane is related to.

Background

The truck crane is a crane mounted on a common automobile chassis or a special automobile chassis, and a driving cab and a crane control cab of the truck crane are separately arranged. The crane has the advantages of good maneuverability and rapid transfer. The defects are that supporting legs are needed during working, the vehicle cannot run under load, and the vehicle is not suitable for working on soft or muddy places.

If the publication number is CN207175293U, the intelligent self-adaptive lifting-limiting truck crane comprises a lifting arm, a rotary platform, a truck chassis, a controller and a lifting cylinder, wherein the lifting arm is mounted on the rotary platform through a mounting seat, the lifting cylinder is mounted on the rotary platform, a piston rod of the lifting cylinder is connected with the lifting arm, and the rotary platform is mounted on the truck chassis; an angle sensor for acquiring the lifting angle of the cargo boom is installed at the root part of the cargo boom, and the controller acquires an angle signal which is fed back by the angle sensor and is used for controlling the lifting oil cylinder to stop driving the cargo boom to lift, wherein the angle signal is used for controlling the lifting angle of the cargo boom to reach a limit value.

The above prior art solutions have the following drawbacks: the truck crane often can use the lifting hook to lift by crane the heavy object, and when need not use the lifting hook and the crane shifts, the lifting hook can produce rocking by a wide margin under the circumstances such as vibrations, brake, acceleration, and the quality of lifting hook is big, then in case the lifting hook rocks too big, not only collides with pedestrian, other vehicles easily, still produces the collision with crane self easily, and is very dangerous, consequently needs a fixing device that can fix the lifting hook.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lifting hook fixing device of truck crane, it has the effect that can fix the lifting hook.

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

a lifting hook fixing device of an automobile crane comprises a crane body, wherein a crane body is arranged on the crane body, a lifting hook is arranged on the crane body far away from one end of the crane body, a fixing mechanism is also arranged on the crane body, the fixing mechanism comprises a telescopic component which is hinged and installed on the crane body, a buckle component is installed on the telescopic component far away from the crane body, the buckle component comprises a buckle seat, the buckle seat is installed on the telescopic component, a first snap ring is installed on the buckle seat, a second snap ring is rotatably installed on the first snap ring far away from the buckle seat, an installation groove is formed in the buckle seat, a clamping and fixing rod is rotatably installed in the installation groove, an inclined first ratchet bar is installed on the clamping and fixing rod close to one side of the second snap ring, and an inclined second ratchet bar is installed on the second snap ring close to one side of the clamping and fixing rod, the first ratchet bar is meshed with the second ratchet bar, a bent elastic clamping piece is further arranged in the mounting groove on one side far away from the second clamping ring, and two sides of the elastic clamping piece are respectively abutted against the inner side wall of the mounting groove on one side close to the telescopic component and one side of the clamping rod close to the telescopic component; a clamping block is further arranged in the mounting groove and is abutted against the clamping rod; and the buckle seat is also provided with a release part.

By adopting the technical scheme, when the lifting hook is idle and is not used for transportation, the relative position of the clamping seat and the lifting hook is adjusted through the telescopic component, then the lifting hook is placed into a fixing opening formed by the first clamping ring and the second clamping ring, then the second clamping ring is rotated, at the moment, the first ratchet bar and the second ratchet bar collide, the clamping rod and the clamping block are pushed to be separated from a butting state, and the clamping rod is pushed to rotate; the elastic clamping fixing piece can be continuously deformed and pushes the clamping fixing rod to restore to the original state in the process, after the second clamping ring rotates to a required position at a certain angle, the first ratchet bar and the second ratchet bar are meshed under the pushing of the elastic clamping fixing piece to limit the second clamping ring, the lifting hook is fixed by a fixing port formed by the first clamping ring and the second clamping ring, and the possibility that the lifting hook shakes in the transportation process is reduced.

The utility model discloses further set up to: rubber fastening pads are mounted on the inner side wall of the first clamping ring and the inner side wall of the second clamping ring.

Through adopting above-mentioned technical scheme, rubber fastening pad can take place deformation when the lifting hook is fixed by the fixed mouthful of first snap ring and second snap ring formation, forms the cladding to the lifting hook, not only cushions the collision between lifting hook and first snap ring and the second snap ring, has still further improved the fixed stability of lifting hook.

The utility model discloses further set up to: the inner side wall of the mounting groove close to one side of the telescopic component is provided with a positioning groove, the elastic clamping piece close to one side of the telescopic component is provided with a positioning block, and the positioning block is connected with the positioning groove in a clamping manner.

Through adopting above-mentioned technical scheme, the screens of locating piece and constant head tank are connected and have been reduced the solid piece of elasticity card because excessively jolt the reason such as lead to taking place the possibility of displacement in the transportation, have improved the installation stability of the solid piece of elasticity card to stable thrust that keeps the solid pole of card.

The utility model discloses further set up to: the release mechanism is characterized in that the buckle seat is further provided with a release part, the release part comprises a release rod, a release hole is formed in the buckle seat, the release rod penetrates through the release hole, one end of the release rod is connected with the movable end of the clamping rod, a handle is installed on the release rod far away from one end of the clamping rod, a release spring is sleeved on the release rod between the handle and the buckle seat, and two ends of the release spring are connected with the buckle seat and the handle respectively.

By adopting the technical scheme, when the lifting hook needs to be released, the release rod is pulled through the handle, slides along the release hole and pulls the clamping and fixing rod to rotate, at the moment, the first ratchet bar and the second ratchet bar are disengaged, the second clamping ring can be rotated, the first clamping ring and the second clamping ring are disengaged from the clamping and fixing state of the lifting hook, and the lifting hook can be taken down; and after the lifting hook is taken down, the release lever is released, the release lever restores to the original state under the elastic acting force of the elastic clamping piece and the elastic acting force of the release spring, and then the second snap ring is rotated to enable the first ratchet bar and the second ratchet bar to be meshed, so that the second snap ring is fixed.

The utility model discloses further set up to: the telescopic part comprises a hollow first telescopic rod, the first telescopic rod is rotatably installed on the crane body, a plurality of elastic fastening pieces are circumferentially installed on the first telescopic rod on one side far away from the crane body, a ring sleeve is installed on the first telescopic rod and the elastic fastening pieces through threads, a hollow truncated cone-shaped fastening sleeve is further installed on the ring sleeve on one side far away from the crane body, and the fastening sleeve is communicated with the ring sleeve; the telescopic part further comprises a second telescopic rod, the second telescopic rod penetrates through the fastening sleeve and the ring sleeve to be sleeved in the first telescopic rod, and the clamping buckle seat is installed on the second telescopic rod far away from one side of the crane body.

Through adopting above-mentioned technical scheme, according to operating condition, the pulling second telescopic link makes it slide in first telescopic link, the position control of second telescopic link is accomplished the back, twist the snare with the snare along the second telescopic link to first telescopic link and move, the snare drives the direction removal of adapter sleeve to first telescopic link, because the adapter sleeve is cavity round platform form, then the effort can constantly be applyed to the inside wall of adapter sleeve and give the elasticity mounting plate, the elasticity mounting plate is out of shape under the effort of adapter sleeve, and keep supporting tightly with the second telescopic link under the effort, in order to accomplish the fastening to the second telescopic link, the relative position relation of first telescopic link and second telescopic link can be adjusted wantonly and fasten, the practicality of extensible part has been improved.

The utility model discloses further set up to: the second telescopic rod far away from one side of the crane body is fixedly provided with a universal ball, the buckle seat close to one side of the second telescopic rod is provided with a ball sleeve, and the universal ball is positioned in the ball sleeve.

By adopting the technical scheme, the lifting hook can shake greatly due to bumping in the transportation process, and if the lifting hook is completely fixed and needs to overcome the larger force of the lifting hook, the fixing device is easy to damage due to stress; through setting up universal ball and ball cover cooperation, make the lifting hook still can carry out rocking of minizone at the minizone after the card is fixed, not only reduced the possibility of fixing device damage, still with rocking restriction in less within range of lifting hook, difficult and pedestrian, vehicle and the truck crane collision of own.

The utility model discloses further set up to: the crane body is also provided with an object placing component, the object placing component comprises an object placing table, the object placing table is fixedly installed on the crane body, a sliding groove is formed in the object placing table, a sliding block is installed in the sliding groove in a sliding mode, an object placing block is installed on the sliding block, an object placing plate is further installed on the object placing block on one side, away from the sliding block, of the object placing block, an object placing groove is formed in the object placing plate, and the object placing groove is connected with the clamping seat in a clamping mode; the article placing groove is also provided with a through hole for the first telescopic rod and the second telescopic rod to pass through; the sliding block is further provided with a storage spring, and two ends of the storage spring are respectively connected with the sliding block and the inner wall of the sliding groove.

Through adopting above-mentioned technical scheme, in the use of crane body, need not use fixed establishment, then rotate flexible part this moment, put into the buckle seat and put the thing groove back, adjust flexible part to the shortest state, pull the buckle seat through the elastic force that puts the thing spring this moment and put the thing groove and be the clamping connection state to fix flexible part and fixed establishment on the crane body.

The utility model discloses further set up to: the outer all install the centre gripping rack on two lateral walls of sliding block of sliding groove, the groove both sides of sliding put the thing bench and all rotate and install the centre gripping gear, the centre gripping gear with the meshing of centre gripping rack, all install the supporting rod on the centre gripping gear, keep away from centre gripping gear one end still install the grip block on the supporting rod.

Through adopting above-mentioned technical scheme, at the sliding block slip in-process, the centre gripping rack of sliding block both sides can drive two centre gripping gear rotations, and two centre gripping gears can drive two supporting rods and rotate to finally drive two grip blocks and support tightly with the buckle seat, further fix telescopic part and fixed establishment.

The utility model discloses further set up to: and one side of each clamping block, which is close to each other, is provided with a rubber anti-slip pad.

Through adopting above-mentioned technical scheme, rubber slipmat pressurized takes place to be deformed to increase and buckle the area of contact between the seat, and because rubber slipmat's coefficient of friction is bigger, further improved the stability after telescopic part and fixed establishment are fixed.

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

1. the lifting hook in the transportation process is fixed through the fixing mechanism, so that the possibility of loss caused by the shaking of the lifting hook is reduced;

2. by arranging the release part, the lifting hook can be simply and easily taken down from the fixing mechanism;

3. by arranging the telescopic component, the relative position of the fixing mechanism and the lifting hook can be adjusted at will, and the practicability of the fixing mechanism is improved;

4. through the matching of the universal ball and the ball sleeve, the shaking of the lifting hook is limited within a small range, and the possibility of damage to the fixing mechanism is reduced;

5. through setting up and putting the thing part, will not fix on the crane body the fixed establishment when using, promoted security and convenience.

Drawings

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

FIG. 2 is a schematic structural view of the telescopic member of the present invention;

FIG. 3 is a cross-sectional view of the telescoping and snap members of the present invention;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3;

fig. 5 is a schematic structural view of the article holding member of the present invention.

In the figure, 1, a crane body; 11. a crane body; 12. a hook; 2. a fixing mechanism; 3. a telescopic member; 31. a first telescopic rod; 32. an elastic fastening tab; 33. sleeving a ring; 34. fastening sleeves; 35. a second telescopic rod; 36. a universal ball; 37. a ball sleeve; 4. a buckle component; 41. a buckle seat; 42. a first snap ring; 43. a second snap ring; 44. a rubber fastening pad; 5. mounting grooves; 51. clamping and fixing the rod; 52. a first ratchet bar; 53. a second ratchet bar; 54. an elastic clamping sheet; 55. positioning blocks; 56. positioning a groove; 57. a clamping block; 6. a release member; 61. a release lever; 62. a release aperture; 63. a handle; 64. releasing the spring; 7. a placement member; 71. a placing table; 72. a sliding groove; 73. a sliding block; 74. placing the object blocks; 75. a storage plate; 76. a storage groove; 77. a through hole; 78. a placement spring; 8. clamping the rack; 81. clamping the gear; 82. a clamping rod; 83. a clamping block; 84. a rubber non-slip mat.

Detailed Description

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

As shown in fig. 1 and 2, for the utility model discloses a lifting hook fixing device of truck crane, including crane body 1, be provided with crane body 11 on crane body 1's the automobile body, be provided with lifting hook 12 on the crane body 11 of keeping away from crane body 1 one end. The head of the crane body 1 is also provided with a fixing mechanism 2, and the fixing mechanism 2 comprises a telescopic component 3.

The telescopic part 3 comprises a hollow first telescopic rod 31, the first telescopic rod 31 is hinged and installed on the head of the crane body 1 through a bolt, and four elastic fastening pieces 32 are installed on the first telescopic rod 31 far away from one end of the crane body 1 in a circumferential equidistant mode. The first telescopic rod 31 and the elastic fastening piece 32 are provided with a ring sleeve 33 through threads, the ring sleeve 33 at one side far away from the crane body 1 is also provided with a hollow truncated cone-shaped fastening sleeve 34, the fastening sleeve 34 is communicated with the ring sleeve 33, the diameter of the side, connected with the ring sleeve 33, of the fastening sleeve 34 is the same as that of the ring sleeve 33, and the diameter of the side, far away from the ring sleeve 33, of the fastening sleeve 34 is smaller than that of the ring sleeve 33.

The telescopic member 3 further comprises a second telescopic rod 35, the second telescopic rod 35 penetrates through the fastening sleeve 34 and the ring sleeve 33 to be sleeved in the first telescopic rod 31, and the elastic fastening piece 32 is tightly abutted to the second telescopic rod 35 under the action force of the fastening sleeve 34.

As shown in fig. 1 and 3, a universal ball 36 is mounted on the second telescopic rod 35 far from the crane body 1, a ball sleeve 37 is rotatably sleeved on the universal ball 36, and a buckle part 4 is mounted on the ball sleeve 37 far from the second telescopic rod 35.

As shown in fig. 3 and 4, the fastening component 4 includes a fastening seat 41, the fastening seat 41 is fixedly installed on one side of the ball sleeve 37 far away from the second telescopic rod 35, two first clamping rings 42 parallel to each other are installed on a side wall of one side of the fastening seat 41, a second clamping ring 43 is hinged on the first clamping ring 42 far away from one side of the fastening seat 41, rubber fastening pads 44 are installed on an inner side wall of the first clamping ring 42 and an inner side wall of the second clamping ring 43, and the first clamping ring 42 and the second clamping ring 43 form a fixing opening. The buckle seat 41 is internally provided with a mounting groove 5, and one side of the mounting groove 5, which is far away from the ball sleeve 37, is communicated with the outside.

One end of the mounting groove 5 close to the first snap ring 42 is rotatably provided with a clamping rod 51, one side of the clamping rod 51 close to one end of the second snap ring 43 and far away from the ball sleeve 37 is provided with an inclined first ratchet rack 52, the second snap ring 43 close to one side of the clamping rod 51 is provided with an inclined second ratchet rack 53, and the first ratchet rack 52 is meshed with the second ratchet rack 53.

A bent elastic clamping piece 54 is further installed in the installation groove 5 on one side of the clamping rod 51 close to the ball sleeve 37, and two sides of the elastic clamping piece 54 respectively abut against one side of the clamping rod 51 close to the ball sleeve 37 and one side of the installation groove 5 close to the ball sleeve 37. One side of the elastic clamping and fixing piece 54 close to the ball sleeve 37 is provided with a positioning block 55, one side of the mounting groove 5 close to the ball sleeve 37 is provided with a positioning groove 56, and the positioning groove 56 is in clamping connection with the positioning block 55. The mounting groove 5 is also provided with a clamping block 57, and the movable end of the clamping rod 51 is tightly pressed against the clamping block 57 under the pushing of the elastic clamping sheet 54.

The release part 6 is also arranged on the buckle seat 41, the release part 6 comprises a release rod 61, a release hole 62 is arranged on the buckle seat 41 at one side of the movable end of the clamping rod 51 close to the ball sleeve 37, and the release rod 61 passes through the release hole 62 and is connected with the movable end of the clamping rod 51. A handle 63 is further mounted on the release lever 61 far from one end of the fastening rod 51, a release spring 64 is further sleeved on the release lever 61 between the handle 63 and the buckle seat 41, and two ends of the release spring 64 are respectively connected with the buckle seat 41 and the handle 63.

As shown in fig. 1 and 5, the crane body 1 above the telescopic member 3 is further provided with a placement member 7, the placement member 7 includes a placement table 71, the placement table 71 is fixedly mounted on the crane body 1, a vertical sliding groove 72 is formed in the placement table 71, and a sliding block 73 is slidably mounted in the sliding groove 72. The sliding block 73 far away from the object placing table 71 is provided with an object placing block 74, the object placing block 74 far away from the object placing table 71 is provided with an object placing plate 75, the object placing plate 75 is provided with an object placing groove 76, and the object placing groove 76 is in clamping connection with the buckle seat 41.

The storage slot 76 is further opened with a through hole 77 for the first expansion link 31 and the second expansion link 35 to pass through. And the upper surface of the sliding block 73 is also provided with a placing spring 78, and two ends of the placing spring 78 are respectively connected with the sliding block 73 and the inner wall of the sliding groove 72.

Clamping racks 8 are respectively arranged on two side walls of the object placing block 74, clamping gears 81 are respectively rotatably arranged on the object placing table 71 on the outer sides of the clamping racks 8, and the clamping gears 81 are meshed with the clamping racks 8. All install clamping rod 82 on two centre gripping gears 81, clamping block 83 is installed to the one end that clamping rod 82 kept away from clamping gear 81, and one side that two clamping block 83 are close to each other all is provided with rubber slipmat 84, and two clamping block 83 rotate and support tightly with buckle seat 41.

The implementation principle of the embodiment is as follows:

when the hook 12 is not used for transportation and the hook 12 needs to be fixed, the retractable member 3 is detached from the storage member 7. At this time, the ring sleeve 33 is firstly unscrewed, the ring sleeve 33 and the fastening sleeve 34 move towards the second telescopic rod 35, the inner wall of the fastening sleeve 34 is separated from the abutting state with the elastic fastening piece 32, and the elastic fastening piece 32 is separated from the abutting state with the second telescopic rod 35. The storage spring 78 restores the deformation and pulls the sliding block 73 and the storage block 74, and along with the movement of the sliding block 73, the clamping gear 81 engaged with the clamping rack 8 rotates and drives the clamping rod 82 and the clamping block 83 to rotate along with the rotation, so that the rubber anti-skid pad 84 on the clamping block 83 is separated from the clamping state with the buckle seat 41. In the process, the second telescopic rod 35 slides along the first telescopic rod 31. The second telescopic rod 35 is pulled continuously to make the buckle seat 41 and the object placing groove 76 be separated from the clamping connection state, and then the first telescopic rod 31 is rotated to take the telescopic component 3 off the object placing component 7.

After the telescopic member 3 is taken down, the second telescopic rod 35 is pulled to a required position, the ring sleeve 33 is screwed, the fastening sleeve 34 is driven, acting force is applied to the elastic fastening piece 32 from the inner side wall of the fastening sleeve 34, the elastic fastening piece 32 is pressed to deform and is abutted against the second telescopic rod 35, and then the position of the second telescopic rod 35 is fixed.

After the telescopic member 3 is adjusted, the hook 12 is placed into the fixing opening formed by the first snap ring 42 and the second snap ring 43, and then the second snap ring 43 is rotated, at this time, the first ratchet bar 52 collides with the second ratchet bar 53, the second ratchet bar 53 pushes the clamping rod 51 and the clamping block 57 to be separated from the abutting state through the first ratchet bar 52, and pushes the clamping rod 51 to rotate.

In the process, the elastic clamping piece 54 can be continuously deformed and push the clamping rod 51 to restore, after the second snap ring 43 rotates to a required position by a certain angle, the first ratchet bar 52 and the second ratchet bar 53 are meshed under the push of the elastic clamping piece 54 to limit the second snap ring 43, the lifting hook 12 is fixed by a fixing port formed by the first snap ring 42 and the second snap ring 43, and the possibility that the lifting hook 12 shakes in the transportation process is reduced. The rubber fastening pad 44 is deformed when the hook 12 is fixed by the fixing opening formed by the first snap ring 42 and the second snap ring 43, so that the hook 12 is coated, the collision between the hook 12 and the first snap ring 42 and the second snap ring 43 is buffered, and the fixing stability of the hook 12 is further improved.

The lifting hook 12 can be transported after being fixed, in the process, the road condition and the like can greatly shake, the clamping connection through the positioning block 55 and the positioning groove 56 reduces the possibility of displacement of the elastic clamping piece 54 caused by excessive jolt and the like in the transportation process, and the installation stability of the elastic clamping piece 54 is improved.

If the hook 12 is completely fixed, a large force needs to be overcome for the hook 12, and the fixing device is easily damaged due to stress; through setting up universal ball 36 and the cooperation of ball cover 37, make lifting hook 12 still can carry out the rocking of minizone after the card is fixed, not only reduced the possibility of fixing device damage, still with the rocking restriction of lifting hook 12 in less scope, difficult and pedestrian, vehicle and the autocrane collision itself take place.

When the lifting hook 12 needs to be taken down after transportation is completed, the release rod 61 is pulled by the handle 63, the release rod 61 slides along the release hole 62, the clamping rod 51 is pulled to rotate, at the moment, the first ratchet rack 52 and the second ratchet rack 53 are disengaged, the second snap ring 43 can be rotated, the first snap ring 42 and the second snap ring 43 are disengaged from the clamping state of the lifting hook 12, and the lifting hook 12 can be taken down.

After the hook 12 is removed, the release lever 61 is released, the release lever 61 is restored to its original shape by the elastic force of the elastic locking piece 54 and the elastic force of the release spring 64, and then the second clasp 43 is rotated to engage the first ratchet bar 52 with the second ratchet bar 53, thereby fixing the second clasp 43. The retractable member 3 is fixed to the placement member 7 again after the hook 12 is removed.

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 (9)

1. The utility model provides a lifting hook fixing device of autocrane, includes crane body (1), be provided with crane body (11) on crane body (1), keep away from crane body (1) one end be provided with lifting hook (12) on crane body (11), its characterized in that: the crane is characterized in that a fixing mechanism (2) is further arranged on the crane body (1), the fixing mechanism (2) comprises a telescopic part (3) hinged on the crane body (1), a buckle part (4) is installed on the telescopic part (3) far away from the crane body (1), the buckle part (4) comprises a buckle seat (41), the buckle seat (41) is installed on the telescopic part (3), a first buckle ring (42) is installed on the buckle seat (41), a second buckle ring (43) is installed on the first buckle ring (42) far away from the buckle seat (41) in a rotating mode, an installation groove (5) is formed in the buckle seat (41), a buckle fixing rod (51) is installed in the installation groove (5) in a rotating mode, an inclined first ratchet rack (52) is installed on the buckle fixing rod (51) close to one side of the second buckle ring (43), an inclined second ratchet rack (53) is arranged on the second clamping ring (43) close to one side of the clamping rod (51), the first ratchet rack (52) is meshed with the second ratchet rack (53), a bent elastic clamping piece (54) is further arranged in the mounting groove (5) far away from one side of the second clamping ring (43), and two sides of the elastic clamping piece (54) are respectively abutted against the inner side wall of the mounting groove (5) close to one side of the telescopic component (3) and one side of the clamping rod (51) close to the telescopic component (3); a clamping block (57) is further installed in the installation groove (5), and the clamping block (57) is tightly abutted to the clamping rod (51); and a release part (6) is also arranged on the buckle seat (41).

2. A hook fastening system for a truck crane according to claim 1, further comprising: and rubber fastening pads (44) are mounted on the inner side wall of the first clamping ring (42) and the inner side wall of the second clamping ring (43).

3. A hook fastening system for a truck crane according to claim 1, further comprising: be close to flexible part (3) one side seted up constant head tank (56) on the inside wall of mounting groove (5), be close to flexible part (3) one side install locating piece (55) on elasticity card solid piece (54), locating piece (55) with constant head tank (56) screens links to each other.

4. A hook fastening system for a truck crane according to claim 1, further comprising: the release component (6) comprises a release rod (61), a release hole (62) is formed in the buckle seat (41), the release rod (61) penetrates through the release hole (62), one end of the release rod (61) is connected with the movable end of the clamping rod (51), a handle (63) is installed on the release rod (61) far away from one end of the clamping rod (51), a release spring (64) is sleeved on the release rod (61) between the handle (63) and the buckle seat (41), and two ends of the release spring (64) are respectively connected with the buckle seat (41) and the handle (63).

5. A hook fastening system for a truck crane according to claim 1, further comprising: the telescopic part (3) comprises a hollow first telescopic rod (31), the first telescopic rod (31) is rotatably installed on the crane body (1), a plurality of elastic fastening pieces (32) are circumferentially installed on the first telescopic rod (31) far away from one side of the crane body (1), a ring sleeve (33) is installed on the first telescopic rod (31) and the elastic fastening pieces (32) through threads, a hollow truncated cone-shaped fastening sleeve (34) is further installed on the ring sleeve (33) far away from one side of the crane body (1), and the fastening sleeve (34) is communicated with the ring sleeve (33); the telescopic part (3) further comprises a second telescopic rod (35), the second telescopic rod (35) penetrates through the fastening sleeve (34) and the ring sleeve (33) to be sleeved in the first telescopic rod (31), and the second telescopic rod (35) far away from one side of the crane body (1) is provided with the buckle seat (41).

6. A hook fastening system for a truck crane as claimed in claim 5, further comprising: keep away from crane body (1) one side fixed mounting has universal ball (36) on second telescopic link (35), is close to second telescopic link (35) one side install ball cover (37) on buckle seat (41), universal ball (36) are located in ball cover (37).

7. A hook fastening system for a truck crane as claimed in claim 5, further comprising: the crane is characterized in that an object placing component (7) is further arranged on the crane body (1), the object placing component (7) comprises an object placing table (71), the object placing table (71) is fixedly installed on the crane body (1), a sliding groove (72) is formed in the object placing table (71), a sliding block (73) is installed in the sliding groove (72) in a sliding mode, an object placing block (74) is installed on the sliding block (73), an object placing plate (75) is further installed on the object placing block (74) far away from one side of the sliding block (73), an object placing groove (76) is formed in the object placing plate (75), and the object placing groove (76) is connected with the buckle seat (41) in a clamping mode; the article placing groove (76) is also provided with a through hole (77) for the first telescopic rod (31) and the second telescopic rod (35) to pass through; the sliding block (73) is further provided with a storage spring (78), and two ends of the storage spring (78) are connected with the sliding block (73) and the inner wall of the sliding groove (72) respectively.

8. A hook fastening system for a mobile crane according to claim 7, further comprising: slide outside groove (72) all install centre gripping rack (8) on two lateral walls of sliding block (73), slide groove (72) both sides put and all rotate on thing platform (71) and install centre gripping gear (81), centre gripping gear (81) with centre gripping rack (8) meshing, all install clamping rod (82) on centre gripping gear (81), keep away from clamping gear (81) one end still install clamping block (83) on clamping rod (82).

9. A hook fastening system for a truck crane as claimed in claim 8, further comprising: and one side of each clamping block (83) close to each other is provided with a rubber antiskid pad (84).

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