CN216008411U - Lifting and contracting connector for spiral drilling machine - Google Patents

Abstract

The utility model relates to a spiral drilling machine technical field, concretely relates to lift shrink connector for spiral drilling machine. The utility model provides a lift shrink connector for auger drilling, include: equipment body, lift portion and a plurality of supporting leg, lift portion includes: the device comprises an angle cylinder, a rotating disc, a supporting frame, a contraction assembly and a lifting assembly, wherein the rotating disc is rotatably arranged on the device body, and the supporting frame is fixed on the rotating disc; the interior of the contraction assembly is hollow, the lower end of the contraction assembly is rotatably arranged on the support frame, and the lifting assembly is arranged in the contraction assembly; when the angle cylinder pushes the contraction assembly, the lifting assembly is synchronously driven to push the contraction assembly to a specified height. Thereby it is slow with the recovery rate to have solved the lifing arm among the prior art to rise through setting up lift portion, from great, great technical problem influences whole quick-witted stability.

Description

Lifting and contracting connector for spiral drilling machine

Technical Field

The utility model relates to a spiral drilling machine technical field, concretely relates to lift shrink connector for spiral drilling machine.

Background

Application No.: CN201721435809.2, publication (bulletin) No.: CN207330154U, a lift lifing arm, this utility model discloses a lift lifing arm, including the lifing arm support, the lifing arm support is by controlling the stand and setting up about the stand between the crossbeam of both ends, be equipped with two excessive wheels that can slide about the track on every stand, the both ends of every crossbeam are equipped with two guide pulley bodies that can be around the track or reciprocate, are equipped with the take-up housing on one of them crossbeam, the utility model discloses both ends design stress point about the lifing arm has guide pulley body to receive the moment of flexure without producing of vertical force around controlling, for saving motor, worm gear and reduction gear, will increase a ferryboat on another stand, just can guarantee to adorn the synchronous equidimension work of sprocket on the stand.

In the lifting process of the spiral drilling machine, the lifting arm is required to move up and down, and the lifting contraction arm is required to rotate in the circumferential direction, so that the lifting and recovery of the spiral drilling machine are often the most unexpected, and therefore the lifting contraction arm is required to complete the lifting and recovery work more quickly.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: lifting and contracting arm goes up and down slowly among the prior art and contracts, and is great certainly, to the great technical problem of whole quick-witted stability influence, the utility model provides a lifting and contracting connector for auger drilling machine solves above-mentioned problem.

In order to achieve the above object, an embodiment of the present invention provides a lifting and contracting connector for a spiral drilling machine, including: the lifting device comprises an equipment body, a lifting part and a plurality of supporting legs, wherein the equipment body is a movable platform, the lifting part is rotatably arranged at the upper end of the equipment body, and the supporting legs are respectively arranged on two sides of the equipment body; the lifting part includes: the device comprises an angle cylinder, a rotating disc, a supporting frame, a contraction assembly and a lifting assembly, wherein the rotating disc is rotatably arranged on the device body, and the supporting frame is fixed on the rotating disc; the interior of the contraction assembly is hollow, the lower end of the contraction assembly is rotatably arranged on the support frame, and the lifting assembly is arranged in the contraction assembly; one end of the angle cylinder is fixed on the support frame, the other end of the angle cylinder is hinged to the outer wall of the contraction assembly, and when the angle cylinder pushes the contraction assembly, the lifting assembly is synchronously driven to push the contraction assembly to a specified height.

Further, the retraction assembly comprises: the angle adjusting device comprises a first contraction rod, a second contraction rod, a third contraction rod and a fourth contraction rod, wherein the first contraction rod is arranged on the inner side of the second contraction rod, the second contraction rod is arranged on the inner side of the third contraction rod, the third contraction rod is arranged on the inner side of the fourth contraction rod, the fourth contraction rod is rotatably arranged on the support frame, and the end part of the angle cylinder is hinged to the outer wall of the fourth contraction rod.

Further, the lifting assembly comprises: the first pushing cylinder is arranged inside the third shrinkage rod, one end of the first pushing cylinder is vertically fixed on the inner bottom wall of the third shrinkage rod, one end of the first piston rod is vertically fixed on the inner bottom wall of the fourth shrinkage rod, and the other end of the first piston rod is slidably arranged in the first pushing cylinder; the movable pulley is arranged at the upper end of the first pushing cylinder, the steel cable is arranged at one end of the movable pulley, and two ends of the steel cable are respectively fixed to the inner bottom wall of the fourth contraction rod and the inner bottom wall of the second contraction rod; when the first pushing cylinder pushes the third contraction rod to lift upwards, the steel cable can synchronously drive the second contraction rod to lift upwards.

Further, the lifting assembly further comprises: the second pushing cylinder is arranged inside the second contraction rod, one end of the second pushing cylinder is vertically fixed to the inner bottom wall of the second contraction rod, one end of the second piston rod is vertically fixed to the outer bottom wall of the first contraction rod, and the other end of the second piston rod is slidably arranged in the second pushing cylinder; the second pushing cylinder can drive the first contraction rod to ascend or contract.

Furthermore, the upper ends of the inner walls of the second, third and fourth telescopic rods are respectively provided with a fixed shaft, and two ends of the fixed shaft are respectively fixed on two side walls of the second, third and fourth telescopic rods; the outer wall of the fixed shaft is rotatably sleeved with a rolling wheel, and the outer wall of the rolling wheel is respectively attached to the outer walls of the first contraction rod, the second contraction rod and the third contraction rod.

Furthermore, the lower ends of the outer walls of the first telescopic rod, the second telescopic rod and the third telescopic rod are respectively provided with an oil storage block, the side wall of the oil storage block is slidably provided with a trigger rod, and the side wall of the oil storage block is provided with an oil injection port; the trigger rod is linked with the oil injection port, and the trigger rod and the oil injection port face the rolling wheel; when the oil storage block and the rolling wheel move oppositely, the rolling wheel can push the trigger rod to slide upwards so that the oil injection port sprays lubricating oil.

Further, two movable tires are respectively arranged on two sides of the equipment body, and the movable tires can drive the equipment body to move.

Further, still be provided with a disc base on the equipment body, the disc base with rolling disc looks adaptation, the rolling disc sets up on the disc base, just the rolling disc can circumferential direction is in on the disc base.

Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has, a lift shrink connector for auger drilling is provided, be provided with four sections collapsible arms in the shrink arm, and only need two cylinders can drive each shrink arm and not three, the holistic weight of shrink arm has been alleviateed, each shrink arm coupling part is provided with lubricated mechanism simultaneously, lubricating mechanism can paint lubricating oil to the shrink arm when the shrink arm opens, reduce the frictional force between the shrink arm, thereby accelerate the lift arm to raise and retrieve the speed, improve complete machine job stabilization nature.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 shows a schematic structural view of an elevating contracting wall for a spiral drilling machine of the present invention;

fig. 2 shows a perspective view of the lifting portion of the present invention;

figure 3 shows a longitudinal cross-sectional view of the retraction assembly and the lifting assembly of the present invention.

In the figure:

2. an apparatus body; 21. moving the tire; 22. a disc base; 3. a lifting part; 31. an angle cylinder; 32. rotating the disc; 33. a support frame;

34. a retraction assembly; 341. a first retracting lever; 342. a second retracting lever; 343. a third retracting lever; 344. a fourth retracting lever; 345. a fixed shaft; 346. a rolling wheel; 347. an oil storage block; 348. a trigger lever; 349. an oil injection port;

35. a lifting assembly; 351. a first pushing cylinder; 352. a first piston rod; 353. a movable pulley; 354. a steel cord; 355. A second pushing cylinder; 356. a second piston rod; 4. And (5) supporting legs.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1 to 3, the present invention provides a lifting and contracting connector for a screw drill, including: the device comprises a device body 2, a lifting part 3 and a plurality of supporting legs 4, wherein the device body 2 is an engineering machine, and the device body 2 can be used for installing other parts and providing driving force for a lifting contraction arm; the elevating part 3 is provided above the apparatus body 2, and the elevating part 3 is adapted to position the drill to a designated position by an operator's elevating and retracting operation; the support legs 4 can provide reliable positioning for the apparatus body 2. With respect to the above components, detailed description is given below.

Equipment body

The equipment body 2 is a movable platform, the main body part of the equipment body 2 is similar to the appearance and the function of an engineering vehicle, the equipment body 2 comprises a bottom walking mechanism and a disc base 22 arranged above the walking mechanism, wherein the walking mechanism has the basic function of a common vehicle, two movable tires 21 are respectively arranged on two sides of the equipment body 2, and the walking mechanism can drive the movable tires 21 to roll, so that the movable tires 21 can drive the equipment body 2 to move to an appointed position. The disc base 22 is arranged at the center above the travelling mechanism, a rotating shaft groove is formed in the center of the disc base 22, the disc base 22 is a mounting base of the lifting and contracting arm shown in the embodiment, the disc base 22 is fixedly connected with the equipment body 2, the disc base 22 is further provided with a control room which is rotatably connected with the disc base 22, the control room is suitable for an operator to enter and stay, all parts are operated, and the control room is provided with windows on three sides, so that the visual field is wide.

Supporting leg

The supporting legs 4 are parking positioning mechanisms of the equipment body 2, the number of the supporting legs 4 is a plurality, in the embodiment, the number of the supporting legs 4 is preferably four, and the supporting legs 4 are distributed on two front end side walls and two rear end side walls of the equipment body 2 in a mirror image mode. One the supporting leg 4 includes a diaphragm and a location foot, wherein diaphragm one end is inserted in 2 lateral walls of equipment body, the other end protrusion equipment body 2, the diaphragm can slide in 2 lateral walls of equipment body and stretch out and draw back, and the location foot runs through the diaphragm is kept away from the one end of equipment body 2, just the location foot can be followed endwise slip to contact ground, thereby will equipment body 2 is fixed a position at the assigned position.

Lifting part

Lift portion 3 is installed 2 tops of equipment body, the concrete expression does lift portion 3 is installed disc base 22 up end, the control cabin side, lift portion 3 with disc base 22 fixed connection. The elevating portion 3 is adapted to position the drill bit in a proper position through an operator's elevating and retracting operation, in particular, the elevating portion 3 can rotate with the disc base 22 when the operator manipulates the disc base 22 to rotate.

The following describes the structure of the lifting unit 3 in detail, and the lifting unit 3 includes: the device comprises an angle cylinder 31, a rotating disc 32, a supporting frame 33, a contraction assembly 34 and a lifting assembly 35, wherein the diameter of the outer circle of the rotating disc 32 is the same as that of the outer circle of the disc base 22, a rotating shaft fixedly connected with the rotating disc 32 is coaxially arranged at the bottom of the rotating disc 32, and the rotating disc 32 is inserted into a rotating shaft groove (not shown in the figure) through the rotating shaft, so that the rotating disc 32 can be rotatably arranged on the device body 2. The support frame 33 is fixed on the upper end surface of the rotating disc 32, the control room is also fixed on the upper end surface of the rotating disc 32, the control room is positioned on one side of the support frame 33, when the rotating disc 32 rotates, the support frame 33 and the control room can synchronously rotate along with the rotating disc 32, so that the position of the lifting and retracting arm is adjusted, meanwhile, the lifting and retracting arm is kept right in front of the control room, and the observation and operation of an operator are facilitated. The inside cavity of shrink subassembly 34, just the rotatable setting of shrink subassembly 34 lower extreme is in on the support frame 33, shrink subassembly 34 can shrink in length direction to the height and the position of auger bit, lift subassembly 35 sets up inside shrink subassembly 34, lift subassembly 35 can drive under operating personnel's operation shrink subassembly 34 is flexible, angle cylinder 31 one end is fixed on the support frame 33, the angle cylinder 31 other end articulates in shrink subassembly 34 outer wall, angle cylinder 31 can promote shrink subassembly 34 rotates around support frame 33, wherein when angle cylinder 31 pushes away shrink subassembly 34, synchronous drive lift subassembly 35 can with shrink subassembly 34 pushes away to the assigned height.

It should be noted that the retraction assembly 34 generally has a plurality of sections, and the lifting assembly 35 is provided with a cylinder or a hydraulic cylinder between two adjacent sections of the retraction assembly 34, and when the retraction assembly 34 needs to be pushed by the cylinder or the hydraulic cylinder to sequentially ascend, but when the retraction assembly 34 has more than three sections, the lifting assembly 35 needs to be provided with a plurality of corresponding groups of cylinders or hydraulic cylinders, so that the overall weight of the retraction assembly 34 is greatly improved, the working stability of the whole machine is reduced, and meanwhile, after being repeatedly retracted, the two adjacent sections of the retraction assembly 34 are worn, and the friction force during retraction is increased. In order to solve the above problem, the following scheme may be adopted.

The following describes in detail a structure of a retracting component 34 of the lifting retracting arm shown in this embodiment, where the retracting component 34 specifically includes: the telescopic device comprises a first contraction rod 341, a second contraction rod 342, a third contraction rod 343 and a fourth contraction rod 344, wherein the first contraction rod 341 is arranged on the inner side of the second contraction rod 342, the second contraction rod 342 is arranged on the inner side of the third contraction rod 343, and the third contraction rod 343 is arranged on the inner side of the fourth contraction rod 344, which is characterized in that each contraction rod gradually decreases in cross section from the position close to the support frame 33 to the position far away from the support frame 33, and the contraction rod with the smaller cross section is nested in the contraction rod with the larger cross section. The fourth contraction rod 344 is rotatably arranged on the support frame 33, the end of the angle cylinder 31 is hinged to the outer wall of the fourth contraction rod 344, and the angle cylinder 31 can stretch and retract to push the fourth contraction rod 344 to rotate around the support frame 33.

In order to reduce the friction force when the contraction rods slide relatively, the upper ends of the inner walls of the second contraction rod 342, the third contraction rod 343 and the fourth contraction rod 344 are respectively provided with a fixed shaft 345, the two ends of the fixed shaft 345 are respectively fixed on the two side walls of the second contraction rod 342, the third contraction rod 343 and the fourth contraction rod 344, meanwhile, the outer wall of the fixed shaft 345 is rotatably sleeved with a rolling wheel 346, and the outer wall of the rolling wheel 346 is respectively attached to the outer walls of the first contraction rod 341, the second contraction rod 342 and the third contraction rod 343. When two adjacent contraction rods slide relatively, the rolling wheel 346 can rotate around the fixing shaft 345 and roll along the contraction rods at the same time, and the scheme can convert the sliding friction of the two adjacent contraction rods when sliding relatively into rolling friction, thereby effectively reducing the friction force of the contraction rods when sliding relatively.

In order to further reduce the friction force when the contraction rods slide relatively, the lower ends of the outer walls of the first contraction rod 341, the second contraction rod 342 and the third contraction rod 343 are respectively provided with an oil storage block 347, meanwhile, the side wall of the oil storage block 347 is slidably provided with a trigger rod 348, the side wall of the oil storage block 347 is provided with an oil injection port 349, the trigger rod 348 is linked with the oil injection port 349, and the trigger rod 348 and the oil injection port 349 both face the rolling wheel 346. When the oil storage block 347 and the rolling wheel 346 move towards each other, the rolling wheel 346 can push the trigger rod 348 to slide upwards to enable the oil spraying opening 349 to spray lubricating oil, specifically, when each contraction rod contracts, the rolling wheel 346 rolls towards the oil storage block 347, pushes the trigger rod 348 to slide upwards and enables the oil spraying opening 349 to spray lubricating oil, so that the surface of the rolling wheel 346 is stained with lubricating oil, when each contraction rod ascends, the rolling wheel 346 rolls away from the oil storage block 347, and the lubricating oil is smeared on the outer wall of each contraction rod, so that the friction force when each contraction rod slides relatively is effectively reduced.

The following describes specifically the structure of the lifting assembly 35 of the lifting retracting arm shown in this embodiment, where the lifting assembly 35 specifically includes: a first pushing cylinder 351, a first piston rod 352, a movable pulley 353 and a cable 354, wherein the first pushing cylinder 351 is disposed inside the third contraction rod 343, one end of the first pushing cylinder 351 is vertically fixed to the inner bottom wall of the third contraction rod 343, and a circular hole is formed in the inner bottom wall of the third contraction rod 343, one end of the first piston rod 352 is vertically fixed to the inner bottom wall of the fourth contraction rod 344, the other end of the first piston rod 352 passes through the circular hole and is slidably disposed in the first pushing cylinder 351, because the first piston rod 352 and the first pushing cylinder 351 are respectively fixed to the fourth contraction rod 344 and the third contraction rod 343, when the first piston rod 352 slides outwards along the inner wall of the first pushing cylinder 351, the first piston rod 352 can push the bottom end of the fourth contraction rod 344 to separate from the bottom end of the fourth contraction rod 344, thereby achieving the effect of ascending the fourth contraction rod 344 and the third contraction rod 343, and when the first piston rod 352 slides in the opposite direction, the effect of contracting the fourth contraction rod 344 and the third contraction rod 343 can be achieved. In addition, the movable pulley 353 is disposed at the upper end of the first pushing cylinder 351, the cable 354 is disposed at one end of the movable pulley 353, specifically, two ends of the cable 354 are respectively fixed to the inner bottom wall of the fourth contraction rod 344 and the inner bottom wall of the second contraction rod 342, when the first pushing cylinder 351 pushes the third contraction rod 343 to lift, the cable 354 on the upper side of the movable pulley 353 is tensioned, so as to drive the movable pulley 353 to roll clockwise, so as to drive the cable 354 to move along the movable pulley 353 to the upper side, and simultaneously the cable 354 on the lower side of the movable pulley 353 is tensioned, and the second contraction rod 342 is pulled to lift, so that the effect that the cable 354 drives the second contraction rod 342 to lift upwards synchronously is achieved.

In order to drive the first retracting rod 341 to ascend or retract, the lifting assembly 35 further includes: the second pushing cylinder 355 is disposed inside the second retracting rod 342, one end of the second pushing cylinder 355 is vertically fixed to an inner bottom wall of the second retracting rod 342, one end of the second piston rod 356 is vertically fixed to an outer bottom wall of the first retracting rod 341, and the other end of the second piston rod 356 is slidably disposed in the second pushing cylinder 355. The second pushing cylinder 355 can drive the first contraction rod 341 to ascend or contract.

The working process of the lifting and contracting arm for the spiral drilling machine comprises the steps of firstly driving the equipment body 2 to the position near the appointed working position of the spiral drilling machine, extending all the supporting legs 4 out of two sides of the equipment body 2, enabling the equipment body 2 to be in a parking state by contacting with the ground, then rotating the rotating disc 32 to enable the lifting part 3 to be just opposite to the appointed working position of the spiral drilling machine, and then adjusting the relative angle between the lifting part 3 and the appointed working position of the spiral drilling machine through the angle cylinder 31. After the adjustment is completed, the first pushing cylinder 351 is operated, so that the first piston rod 352 pushes the third contraction rod 343 and the fourth contraction rod 344 to separate, and simultaneously the cable 354 on the upper side of the movable pulley 353 is tensioned to drive the movable pulley 353 to roll clockwise, so that the cable 354 is driven to move upwards along the movable pulley 353, and simultaneously the cable 354 on the lower side of the movable pulley 353 is tensioned, and the second contraction rod 342 is pulled away from the third contraction rod 343, so that the third contraction rod 343 and the fourth contraction rod 344 are lifted synchronously. When the third and fourth contraction rods 343 and 344 have been raised, the second push cylinder 355 operates to push the second piston rod 356 to push the first contraction rod 341 away from the second contraction rod 342. The effect of driving each retracting rod to ascend is achieved by providing a retracting assembly 34 and a lifting assembly 35.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A shrink coupling for a screw drill, comprising:

the device comprises a device body (2), a lifting part (3) and a plurality of supporting legs (4), wherein the device body (2) is a movable platform, the lifting part (3) is rotatably arranged at the upper end of the device body (2), and the supporting legs (4) are respectively arranged on two sides of the device body (2);

the lifting unit (3) includes: the device comprises an angle cylinder (31), a rotating disc (32), a supporting frame (33), a contraction assembly (34) and a lifting assembly (35), wherein the rotating disc (32) is rotatably arranged on the device body (2), and the supporting frame (33) is fixed on the rotating disc (32);

the interior of the retraction assembly (34) is hollow, the lower end of the retraction assembly (34) is rotatably arranged on the support frame (33), and the lifting assembly (35) is arranged inside the retraction assembly (34);

one end of the angle cylinder (31) is fixed on the support frame (33), and the other end of the angle cylinder (31) is hinged on the outer wall of the contraction component (34), wherein

When the angle cylinder (31) pushes the contraction assembly (34), the lifting assembly (35) is synchronously driven to push the contraction assembly (34) to a specified height.

2. The telescopic connector for a screw drill according to claim 1,

the retraction assembly (34) comprises: a first contraction rod (341), a second contraction rod (342), a third contraction rod (343) and a fourth contraction rod (344), wherein the first contraction rod (341) is arranged at the inner side of the second contraction rod (342), the second contraction rod (342) is arranged at the inner side of the third contraction rod (343), the third contraction rod (343) is arranged at the inner side of the fourth contraction rod (344), the fourth contraction rod (344) is rotatably arranged on the support frame (33), and the end part of the angle cylinder (31) is hinged at the outer wall of the fourth contraction rod (344).

3. The telescopic connector for a screw drill according to claim 2,

the lifting assembly (35) comprises: a first pushing cylinder (351), a first piston rod (352), a movable pulley (353) and a steel cable (354), wherein the first pushing cylinder (351) is arranged inside the third contraction rod (343), one end of the first pushing cylinder (351) is vertically fixed on the inner bottom wall of the third contraction rod (343), one end of the first piston rod (352) is vertically fixed on the inner bottom wall of the fourth contraction rod (344), and the other end of the first piston rod (352) is slidably arranged in the first pushing cylinder (351);

the movable pulley (353) is arranged at the upper end of the first pushing cylinder (351), the steel cable (354) is arranged at one end of the movable pulley (353), and two ends of the steel cable (354) are respectively fixed on the inner bottom wall of the fourth contraction rod (344) and the inner bottom wall of the second contraction rod (342); wherein

When the first pushing cylinder (351) pushes the third contraction rod (343) to lift upwards, the steel cable (354) can synchronously drive the second contraction rod (342) to lift upwards.

4. The telescopic connector for a screw drill according to claim 3,

the lifting assembly (35) further comprises: a second pushing cylinder (355) and a second piston rod (356), wherein the second pushing cylinder (355) is arranged inside the second contraction rod (342), one end of the second pushing cylinder (355) is vertically fixed on the inner bottom wall of the second contraction rod (342), one end of the second piston rod (356) is vertically fixed on the outer bottom wall of the first contraction rod (341), and the other end of the second piston rod (356) is slidably arranged on the second pushing cylinder (355); wherein

The second pushing cylinder (355) can drive the first contraction rod (341) to ascend or contract.

5. The telescopic connector for a screw drill according to claim 4,

the upper ends of the inner walls of the second contraction rod (342), the third contraction rod (343) and the fourth contraction rod (344) are respectively provided with a fixed shaft (345), and two ends of the fixed shaft (345) are respectively fixed on two side walls of the second contraction rod (342), the third contraction rod (343) and the fourth contraction rod (344);

the outer wall of the fixed shaft (345) is rotatably sleeved with a rolling wheel (346), and the outer wall of the rolling wheel (346) is respectively attached to the outer walls of the first contraction rod (341), the second contraction rod (342) and the third contraction rod (343).

6. The telescopic connector for a screw drill according to claim 5,

the lower ends of the outer walls of the first contraction rod (341), the second contraction rod (342) and the third contraction rod (343) are respectively provided with an oil storage block (347), the side wall of the oil storage block (347) is slidably provided with a trigger rod (348), and the side wall of the oil storage block (347) is provided with an oil injection port (349);

the trigger rod (348) is linked with the oil injection port (349), and the trigger rod (348) and the oil injection port (349) face the rolling wheel (346); wherein

When the oil storage block (347) and the rolling wheel (346) move towards each other, the rolling wheel (346) can push the trigger rod (348) to slide upwards so that the oil injection port (349) sprays lubricating oil.

7. The telescopic connector for a screw drill according to claim 6,

two movable tires (21) are respectively arranged on two sides of the equipment body (2), and the movable tires (21) can drive the equipment body (2) to move.

8. The telescopic connector for a screw drill according to claim 7,

still be provided with a disc base (22) on equipment body (2), disc base (22) with rolling disc (32) looks adaptation, rolling disc (32) set up on disc base (22), just rolling disc (32) can circumferential direction is in on disc base (22).

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