CN212269256U

CN212269256U - Tower crane driver door fixing device

Info

Publication number: CN212269256U
Application number: CN202020258588.1U
Authority: CN
Inventors: 高良; 刘恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2021-01-01
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a tower crane driver door fixing device mainly relates to the tower crane field. Including the push rod, a fixed base, the spout frame with drive the handle, the fixed base is hollow box body structure, fixing base length direction one end is provided with the hole of stretching out, the hole of stretching out is used for installing the push rod, the push rod is the cylinder structure, the push rod with stretch out the hole cooperation, it installs on the push rod to drive the handle, the one side that the fixed base is relative with the assembly mouth is provided with along length direction and drives the mouth, it steps down for the drive handle pole to drive the mouth, one section that the fixed base was stretched out to the push rod is provided with the sliding pin, the fixed base is fixed in the driver's cabin, the push rod axial corresponds perpendicular to driver's cabin door frame, the spout frame is fixed on. The beneficial effects of the utility model reside in that: the cab door can be opened to ninety degrees and secured.

Description

Tower crane driver door fixing device

Technical Field

The utility model relates to a tower crane field specifically is a tower crane driver door fixing device.

Background

The tower crane is the most common construction machinery in modern construction engineering, although the development time of the tower crane is short in China, the production and trial dosage of the tower crane in China are the first century at present, and a large number of tower cranes are put into the construction of the motherland. However, compared with the foreign tower crane, the difference of the tower crane is that the humanized equipment is less, most of the existing foreign engineering equipment uses air conditioners, the air conditioners are rarely made in this respect, most of the tower crane cabs do not have air conditioners, and ventilation and heat dissipation can be realized only by opening windows and doors in summer. However, in design, ventilation of most of tower crane cabs is not considered, so a tower crane driver usually takes steel bars to be arranged between the bottom of a cab door frame and a door, and the cab door can be always in an open state. At present, the tower crane in common construction is more than 60 meters and more than 100 meters, the wind speed on the ground is first-stage wind or second-stage wind, the wind speed at the position of a cab with the height of 100 meters reaches third-stage or fourth-stage wind, the wind direction received by a rotating cab door of the tower crane can change the cab door and a doorframe all the time, the steel bar can be continuously extruded, the cab door and the cab shell are generally processed by 2mm cold plates, the deformation can occur after the extrusion for a plurality of times, and the condition that the cab enters the rain easily occurs. And at present, the tower crane is generally a leasing company but not a building company, and a driver of the tower crane is of the building company, so that the building company cannot interfere with the action, and the leasing company can only make a claim for the later period in many times, thereby causing many disputes in the actual operation process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tower crane driver's door fixing device, it can open ninety degrees and fix with the driver's cabin door.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

a driver door fixing device of a tower crane comprises a push rod, a fixing seat, a chute frame and a driving handle,

the fixing seat is of a hollow box body structure, one end of the fixing seat in the length direction is provided with an extending hole, the extending hole is used for installing a push rod, the push rod is of a cylindrical structure and is matched with the extending hole,

the driving handle is arranged on the push rod, one surface of the fixed seat opposite to the assembling port is provided with a driving port along the length direction, the driving port is a long hole and is used for giving way to the driving handle rod, one section of the push rod extending out of the fixed seat is provided with a sliding pin, the fixed seat is fixed in the cab, the axial direction of the push rod is vertical to a cab door frame,

the sliding groove frame is fixed on a cab door, a sliding groove is formed in the sliding groove frame, and the sliding pin can slide in the sliding groove.

The sliding groove frame is T type sheet metal component, the sliding groove frame is fixed on the cab door, sliding groove frame waist position and cab door fixed connection, two landing leg planes of sliding groove frame are provided with the sliding groove, the sliding groove extends along sliding groove frame length direction, the sliding pin can slide in the sliding groove, and sliding groove length direction is unanimous with push rod length direction when cab door and cab door frame are ninety degrees.

The fixing device for the driver's door of the tower crane further comprises a return spring and a positioning plate,

one side surface of the fixed seat in the length direction is provided with an assembling port which is used for installing a positioning plate,

a stop block is arranged at one end of the push rod, the stop block is arranged at one end of the push rod in the fixed seat, the reset spring is a cylindrical pressure spring, the reset spring is coaxially arranged on the push rod and is arranged between the stop block and the fixed seat, so that the stop block moves away from the direction of the extending hole,

the stop block is provided with a sliding groove perpendicular to the axial direction of the push rod on one side facing the positioning plate, a sliding block is arranged in the sliding groove and divides the sliding groove into two parts along the length direction, retaining springs are respectively arranged on two sides of the sliding block in the sliding groove and are compression springs, and the two retaining springs always push the sliding block to move towards the middle point of the sliding groove in the length direction.

The slider is kept away from and is blocked piece one side and be provided with the uide pin, uide pin axis perpendicular to push rod axis direction, the uide pin extends to the direction of keeping away from the push rod, the locating plate is provided with the plane cam groove towards push rod one side, the uide pin slides in the plane cam groove, the plane cam groove can make the push rod fix temporarily in the fixing base and be close to the one end of stretching out the hole.

The plane cam groove is of an annular structure and comprises four sections which are respectively an initial groove, a first moving groove, a positioning groove and a second moving groove,

the starting groove is arranged at one end far away from the extension hole, the positioning groove is arranged at one end close to the extension hole, the two ends of the starting groove and the positioning groove are respectively communicated with the first moving groove and the second moving groove to form an annular passage,

the start groove is used for guiding the guide pin to a first moving groove when the push rod moves outwards, one side of the start groove close to the extending hole is inclined, the second moving groove is closer to the extending hole compared with the connecting position of the start groove,

the constant head tank both sides wall is parallel and the equidistance sets up, the constant head tank is for being provided with the location on keeping away from the lateral wall of stretching out hole one side sunken, the location is sunken to be used for placing the uide pin, the location is sunken to be provided with the portion that resets in the one side that the constant head tank is close to the second shifting chute, the portion that resets is close to second shifting chute one side and keeps away from relatively and stretches out the hole, the portion that resets is close to the sunken one end in location and will be close to one side of first shifting chute between first shifting chute and second.

Contrast prior art, the beneficial effects of the utility model reside in that:

the device can be at ordinary times with driver's cabin door pull to the state of closing, has certain resistance when opening driver's cabin door, and driver's cabin door can resume the closed condition automatically under the effect of device after opening. The door is blown away by strong wind, so that the cab door is damaged by impact. When will fix driver's cabin door for open mode, the direction pulling of gripping drive handle to driver's cabin door, the push rod can be taken out and with driver's cabin door roof-open, sliding tray and push rod collineation when falling extreme position, and the uide pin falls into the location and caves in this moment. At the moment, the cab door and the cab door frame form an angle of ninety degrees, the cab door is perpendicular to the axial direction of the push rod after being transferred to the push rod under the action of wind power, and therefore the push rod cannot be closed under the action of the wind power. This simple structure and driver's cabin door receive wind-force when using the push rod, and push rod atress direction is perpendicular with portable direction, and the push rod can not receive wind-force effect along axial displacement because of the driver's cabin door, just also can not take place the maloperation because of wind and close driver's cabin door.

Drawings

Fig. 1 is a schematic structural perspective view of the present invention.

Fig. 2 is a schematic perspective view of the structure of the present invention.

Fig. 3 is a three-dimensional schematic view of the cab structure of the present invention.

Fig. 4 is a side view of the present invention with the cab removed and the positioning plate removed.

Fig. 5 is a front view of the positioning plate of the present invention.

Fig. 6 is an enlarged view of part a of the present invention.

Reference numerals shown in the drawings:

1. a push rod; 2. a fixed seat; 3. a return spring; 4. positioning a plate; 5. a chute frame; 6. driving the handle; 7. a blocking block; 8. a starting groove; 9. a first moving slot; 10. positioning a groove; 11. a second moving slot; 12. a retention spring; 13. a guide pin; 14. a slide pin; 15. a sliding groove; 16. a cab door; 17. positioning the recess; 18. a reset portion.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Example (b): the utility model provides a tower crane driver door fixing device, includes push rod 1, fixing base 2, reset spring 3, locating plate 4, chute frame 5 and drives handle 6, fixing base 2 is hollow box body structure, 2 length direction one end of fixing base are provided with and stretch out the hole, it is used for installing push rod 1 to stretch out the hole, 2 length direction's of fixing base side is established the face and is equipped with the assembly mouth, the assembly mouth is used for installing locating plate 4, the fixing base is provided with along length direction with the one side that the assembly mouth is relative and drives the mouth, it is the slot hole to drive the mouth for the installation drives handle 6, it is T type handle to drive handle 6.

Push rod 1 is the cylinder structure, push rod 1 with stretch out the hole cooperation, can follow the axial direction of stretching out the hole and remove, push rod 1's one end is provided with blocks piece 7, block piece 7 setting in the one end of push rod 1 in fixing base 2, reset spring 3 is cylindrical pressure spring and coaxial dress on push rod 1, and sets up between block piece 7 and fixing base 2, makes block piece 7 keep away from to stretch out the hole direction and remove.

A sliding groove perpendicular to the axial direction of the push rod 1 is formed in one side, facing the positioning plate 4, of the blocking block 7, a sliding block is arranged in the sliding groove and divides the sliding groove into two parts along the length direction, retaining springs 12 are respectively arranged on two sides of the sliding block in the sliding groove, the retaining springs 12 are compression springs, and the two retaining springs 12 always push the sliding block to move towards the middle point of the sliding groove in the length direction. The side, far away from the stop block 7, of the sliding block is provided with a guide pin 13, the axis of the guide pin 13 is perpendicular to the axis direction of the push rod 1, and the guide pin 13 extends in the direction far away from the push rod 1.

4 one sides of push rod towards the locating plate are provided with the plane cam groove, uide pin 13 slides in the plane cam groove, the plane cam groove is loop configuration, the cam groove includes that the four sections are originated groove 8, first shifting chute 9, constant head tank 10 and second shifting chute 11 respectively, originated groove 8 sets up the one end of keeping away from the hole of stretching out, constant head tank 10 sets up the one end of being close to the hole of stretching out, first shifting chute 9 and second shifting chute 11 are the long straight flute that is on a parallel with push rod 1, the both ends of originated groove 8 and constant head tank 10 communicate with first shifting chute 9 and second shifting chute 11 respectively, form annular passage.

The starting groove 8 is used for guiding the guide pin 13 to the first moving groove 9 when the push rod 1 moves outwards, one side of the starting groove 8 close to the extending hole is inclined, the connecting position of the first moving groove 9 and the starting groove 8 is closer to the extending hole than the second moving groove 11, and the positioning groove 10 is used for enabling the positioning pin to be temporarily fixed at the position to achieve fixing of the extending length of the push rod 1.

The parallel and equidistance setting of constant head tank 10 both sides wall, constant head tank 10 is for being provided with the positioning recess 17 on the lateral wall of keeping away from hole one side, positioning recess 17 is used for placing uide pin 13, positioning recess 17 is provided with the portion of restoring to the throne 18 in the one side that constant head tank 10 is close to second shifting chute 11, the portion of restoring to the throne 18 is close to second shifting chute 11 one side and keeps away from relatively and stretches out the hole, the portion of restoring to the throne 18 is close to one side that positioning recess 17 one end will be close to first shifting chute 9 between first shifting chute 9 and second shifting chute 11.

When the push rod 1 is pushed, the guide pin 13 enters the first moving groove 9 under the guiding action of the initial groove 8, the push rod 1 is continuously pushed to the positioning groove 10, the guide pin 13 loosens and falls into the positioning recess 17, when the push rod 1 is pushed again, the guide pin 13 moves towards the middle positions of the first moving groove 9 and the second moving groove 11 under the action of the retaining spring 12, the range of the reset part 18 exceeds the middle positions of the first moving groove 9 and the second moving groove 11, the reset part 18 guides the guide pin 13 when the guide pin 13 returns to the middle position, and the guide pin 13 enters the second moving groove 11. The push rod is pushed back under the action of the return spring 3, and the circulation is completed.

One section that blocks piece 7 is kept away from to push rod 1 is provided with sliding pin 14, spout frame 5 is fixed on driver's cabin door 16, fixing base 2 is fixed in the driver's cabin, 1 axial of push rod should 16 frames of driver's cabin door, spout frame 5 is T type sheet metal component, 5 waist positions of spout frame and driver's cabin door 16 fixed connection, 5 two leg planes of spout frame are provided with sliding groove 15, sliding groove 15 extends along 5 length direction of spout frame, sliding pin 14 can slide in sliding

groove

15, and 15 length direction of sliding groove are unanimous with 1 length direction of push rod under the driver's cabin door 16 state of opening completely.

The device can pull the cab door 16 to a closed state at ordinary times, and when the cab door 16 is opened, a certain resistance exists, and the cab door 16 can automatically return to the closed state under the action of the device after the cab door 16 is opened.

When the cab door 16 is to be fixed in an open state, the gripping driving handle 6 is pulled towards the cab door 16, the push rod 1 can be taken out and the cab door 16 is jacked open, the sliding groove 15 is collinear with the push rod 1 when the extreme position is pulled down, and the guide pin 13 falls into the positioning recess 17. At the moment, the cab door 16 and the cab door 16 are in an angle of ninety degrees, the transmission of the cab door 16 to the push rod 1 under the action of wind force is perpendicular to the axial direction of the push rod 1, so the push rod 1 cannot be closed under the action of wind force.

When the cab door 16 needs to be closed, the grip handle 6 is pulled towards the cab door 16, and the cab door 16 automatically returns to the closed state. The whole operation is fast and simple, and the cab can be additionally arranged on the existing cab.

Claims

1. The utility model provides a tower crane driver door fixing device which characterized in that: comprises a push rod, a fixed seat, a chute frame and a driving handle,

2. The tower crane driver's door fixing device of claim 1, wherein: the sliding groove frame is T type sheet metal component, the sliding groove frame is fixed on the cab door, sliding groove frame waist position and cab door fixed connection, two landing leg planes of sliding groove frame are provided with the sliding groove, the sliding groove extends along sliding groove frame length direction, the sliding pin can slide in the sliding groove, and sliding groove length direction is unanimous with push rod length direction when cab door and cab door frame are ninety degrees.

3. The tower crane driver's door fixing device of claim 1, wherein: the fixing device for the driver's door of the tower crane further comprises a return spring and a positioning plate,

a stop block is arranged at one end of the push rod, the stop block is arranged at one end of the push rod positioned in the fixed seat, the reset spring is a cylindrical pressure spring, the reset spring is coaxially arranged on the push rod and is arranged between the stop block and the fixed seat, so that the stop block moves away from the direction of the extending hole,

a sliding groove which is perpendicular to the axial direction of the push rod is arranged on one side of the stop block facing the positioning plate, a sliding block is arranged in the sliding groove and divides the sliding groove into two parts along the length direction, retaining springs are respectively arranged on two sides of the sliding block in the sliding groove and are compression springs, the two retaining springs always push the sliding block to move towards the middle point of the sliding groove in the length direction,

4. The tower crane driver's door fixing device of claim 3, wherein: the plane cam groove is of an annular structure and comprises four sections which are respectively an initial groove, a first moving groove, a positioning groove and a second moving groove,