JPH05211803A - Device for connecting spade for both works - Google Patents

Abstract

PURPOSE:To connect an attaching fitting between the connecting plates of one of various kinds of tractors without laterally transferring the attaching fitting between the connection plates due to a spacer and thereby simply connect a spade for both works to the tractor by supporting the spacer capable of being inserted between the right and left connecting plates in a specific state. CONSTITUTION:Insertion holes 37 for inserting connection pins 46 are vertically formed in right and left connection plates 36, and the connection base plate 42 of an attaching fitting 41 is inserted between the right and left connection plates. Both the ends of the spacer 54 are inserted between the right and left connection plates, and the position of the connection base plate 42 is determined by the spacer 54 to prevent the lateral movement of the attaching fitting, followed by inserting the connecting pins 46. The fixed attaching fitting trails a chain 13 in the good state, and an operation fitting 8 for switching and reversing a spade 3 for both works is smoothly operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual-purpose interlocking device,
Mainly relates to connecting an automatic reversing dual-purpose plow to a tractor.

[0002]

2. Description of the Related Art Conventionally, as a dual-purpose plow of this type, for example, the structure described in Japanese Patent Publication No. 57-39123 is known. In this configuration, a dual-purpose interlocking frame is connected to the top links and lower links of the tractor, and the dual-purpose interlocking frame and an inversion switching mechanism for reversing the dual-purpose interlocking frame are provided in the connecting frame. , An operating metal fitting is rotatably supported on the connecting frame by a supporting shaft in a vertical direction, and an interlocking rod of the reversing switching mechanism is connected to one end of the operating metal fitting and the other end of the operating metal fitting is connected. One end of the chain is connected to the end of the chain via a coil spring, and the other end of the chain is locked to a locking body protruding from the rear part of the tractor body, and the top and lower links of the tractor are lifted. When the connecting frame of the dual-purpose plow is raised by the movement, the actuating metal fitting is pulled by the chain and the coil spring to rotate in the vertical direction about the support shaft, and the interlocking rod is moved back and forth, and Inverting switch with this interlocking rod Operation has been bi for plow body switch is adapted to be switched to the right inverted or left inversion.

Further, there is also known a structure in which a mounting bracket long in the front-rear direction for mounting the chain is detachably mounted on a differential transmission at the rear of the tractor body by a plurality of bolts and nuts.

[0004]

In the structure described in the above publication, the chain is stretched between the locking body projecting from the rear portion of the tractor body and the operating metal fitting provided on the coupling machine frame. Therefore, this chain is used for the power take-off shaft (PT
Since it will be stretched close to the O axis), the PTO axis may be damaged by rubbing the PTO axis with the chain during the switching reversal operation of the dual-purpose plow. It may be difficult to connect the power transmission shaft that transmits power to the PTO shaft. It becomes an obstacle when connecting the transmission shaft, and it takes time to remove the locking body during the connecting work.Furthermore, the top link is attached at a fixed position on the upper part of the tractor body,
There is a problem that the ground height of the mounting position of the top link cannot be variably adjusted, and therefore the dual-purpose plow cannot be easily connected to various tractors.

Further, in the structure in which the mounting bracket is detachably mounted on the differential transmission at the rear part of the tractor body, since the mounting bracket is long in the front-rear direction, the power transmission shaft can be attached to the PTO shaft in the same manner as the structure described in the above publication. However, there is a problem in that it is an obstacle when connecting the two, and it requires a lot of work to remove the mounting metal fitting during the connecting work.

Therefore, the present invention has been made in view of the above point, and the PTO shaft is rubbed and damaged by the chain at the time of the switching reversal operation of the dual-purpose plow by the mounting member for mounting the top link and the chain. The power transmission shaft for transmitting the output of the PTO shaft to the work body can be easily connected to the PTO shaft without needing to project a chain attachment locking body on the tractor. The mounting bracket can be connected to the connecting part of various tractors in a stable state without lateral movement, and the mounting bracket allows the chain to be pulled at a fixed position in a well-balanced manner. An object of the present invention is to provide a dual-purpose interlocking device that can smoothly operate an operating metal piece that is switched and inverted.

[0007]

SUMMARY OF THE INVENTION A dual-purpose interlocking device according to the present invention comprises a tractor having a top link and a lower link,
In the connecting frame of the tractor, which is connected to the top link and the lower link, a dual-purpose pallet and a dual-purpose pallet provided with an inversion switching mechanism for inverting the dual-purpose pallet, and the connecting frame of the dual-purpose pallet. An operating metal fitting that is rotatably supported in the vertical direction and that connects the interlocking rod of the reversal switching mechanism to one end, and the base end of the top link that is attached to the tractor body and is rotatably attached to the upper part. The tractor body is integrally fixed to left and right connecting plates facing the upper part, and the left and right connecting plates are integrally fixed to the tractor body. A plurality of insertion holes for inserting the connecting pins are formed on the upper and lower sides of the connecting plate so as to be opposed to each other, and the mounting bracket has a connecting board for connecting between the left and right connecting plates. Upper mounting part that rotatably attaches the base end of the link A lower mounting portion, which is formed and has a lower end to which the end portion of the chain is attached, is projected rearward, and a communication hole communicating with the upper and lower insertion holes and a communication long hole extending in the vertical direction are formed in the connection board. Is formed vertically, and a circular hole having a diameter larger than the width of the communication elongated hole is formed at the end of the communication elongated hole so as to have a cross-sectional shape that can be inserted into and removed from the circular hole. While having a length located at
A spacer having an annular recess engaged with the communication elongated hole and having a through hole penetrating the connecting pin in the lengthwise direction is provided on the outer peripheral portion.

[0008]

In the dual plow joint device of the present invention, a spacer having a size that can be inserted between the left and right connecting plates is fixed to the upper portion of the tractor body according to the distance between the left and right connecting plates. The spacer is inserted into a circular hole that is continuous with a vertically elongated communication slot formed in the connection board, and the annular recess of this spacer is engaged with the edge of the circular hole to support the spacer.

Next, the connecting board of the mounting member is inserted and arranged between the left and right connecting plates, and the upper and lower connecting holes of the connecting board and the spacer are inserted from the selected upper and lower through holes of this one connecting plate. The connecting pins are inserted into the through holes and the upper and lower insertion holes of the other connecting plate, and the connecting boards of the mounting brackets are connected between the left and right connecting plates by the upper and lower connecting pins. With this connection of the connecting boards, both ends of the spacers through which the connecting pins are inserted are arranged between the left and right connecting plates, the connecting boards are positioned by these spacers, and the mounting bracket moves in the axial direction of the connecting pins. Is prevented.

In this case, that is, when inserting the connecting pin into the through hole of the spacer, if the positions of the through holes of the left and right connecting plates and the position of the through hole of the spacer do not match, the spacer is formed into a circular hole. From the position, push the spacer along the edge of the annular recess that is engaged with the edge of the communication long hole that follows the circular hole, and match the positions of the through holes of the spacer with the positions of the insertion holes of the left and right connecting plates. Then, the connecting pin is inserted into the insertion hole and the through hole. Therefore, the mounting metal fittings can be attached to various tractors having different intervals between the left and right connecting plates and different intervals between the upper and lower insertion holes by the communication elongated hole having the circular hole of the connection board and the spacer.

Next, the base end portion of the top link is rotatably connected to the upper mounting portion of the mounting bracket in the vertical direction, and the top end of the dual-purpose joint frame is vertically attached to the tip end portion of the top link. Connect so that it can rotate in any direction. Further, the tip ends of the left and right lower links, whose base ends are rotatably connected to the lower left and right of the tractor body in the vertical direction, are vertically rotatably connected to the lower left and right of the connecting machine frame of the dual plow. A chain is stretched between the lower mounting portion of the mounting bracket and the end of the operating bracket pivotally supported by the connecting machine frame. Therefore, by attaching the mounting bracket between the left and right connecting plates of the tractor body, the base end of the top link can be attached and
A chain is easily stretched between the operating metal fitting and the dual-purpose plow is easily connected to the tractor.

When the top link of the tractor and the left and right lower links are raised and raised, the connecting frame of the dual-purpose plow is raised, and the actuating metal fitting is pulled by the chain to move up and down about the spindle. While being rotated, the interlocking rod is moved back and forth, and the reversing switching mechanism is switched by the interlocking rod, so that the dual-purpose joint body is switched between right inversion and left inversion. At this time, since the end of the chain is attached to the lower mounting portion projecting toward the rear of the mounting bracket, the chain will not be damaged by rubbing the PTO shaft of the tractor. The mounting bracket is prevented from moving in the axial direction of the connecting pin, and the mounting bracket allows the actuating bracket to be vertically rotated in a balanced manner in a stable state via the chain.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a dual-purpose plow.
Has a connecting machine frame 2 and a plurality of dual-purpose shells 3 provided in the front-rear direction, and the dual-purpose shells 3 are switched between right and left inversions. The reverse switching mechanism 4 is provided. The connecting machine frame 2 is provided with a connecting pin 5 at an upper end thereof so that the connecting pin 5 can be inserted and removed in the left-right direction, and lower pins 6 are horizontally projected outward at the left and right lower ends, respectively. A channel-shaped base frame 7 is provided in an upper portion, and a bell crank-shaped actuating metal fitting 8 located between the base frame 7 and the connecting pin 5 is pivotally supported by a support shaft 9 in a vertically rotatable manner. It is supported.

Further, the front end of the interlocking rod 10 of the reversing switching mechanism 4 is provided at one end of the actuating metal fitting 8 with a support shaft 11 and a support shaft 11a.
Is pivotally attached in the up-and-down direction, and one end of the coil spring 12 is locked to the other end, and one end of the chain 13 is locked to the other end of the coil spring 12. Has been done. In addition, the front end portions of the left and right parallel support arms 14 which are long in the front-rear direction are axially rotatably attached to the base frame 7 so as to be horizontally rotatable by the vertical shafts 15. Removable fixing pin 16 protruding from frame 7
It is fixed so that it will not rotate.

A connecting main frame 17 is attached to the rear end portions of the left and right support arms 14 so as to be horizontally rotatable by a connecting pin 18 and a main shaft 19. A substantially middle portion of the parallelogram frame 20 which is long in the front-rear direction is supported via the connecting pin 18 and the main shaft 19, and the connecting pin 18 is attached to the side frame 20a on one side in the left-right direction of the parallelogram frame 20. And the main shaft 19 is fixed to the side frame 20b on the other side of the parallelogram frame 20.

A front frame 21, a rear frame 22 and an intermediate frame 23 are formed at the front end, rear end and middle of the parallelogram frame 20, and the front frame 21 has the front side part. The dual-purpose staked body 3a of the above, the rear side dual-purpose staked body 3b in the rear frame 22,
The intermediate frame 23 is fitted with the intermediate dual-purpose pallets 3c, and the intermediate dual-purpose pallets 3c and the rear dual-purpose pallets 3c are attached to the front side dual-purpose pallets 3a. The plaques 3b are sequentially arranged so as to be displaced in the left-right direction, and these dual plaques 3a, 3b,
The ploughs of 3c are used to sequentially plowing the cultivated soil over three rows at a time. Then, each of the dual-purpose shells 3a,
Each of the tin bars 3b and 3c is configured to be switched between right inversion and left inversion by the rotation of the main shaft 19 rotated by the switching operation of the inversion switching mechanism 4.

Further, the reversal switching mechanism 4 includes the main shaft.
A substantially fan-shaped main shaft metal fitting 24 fixed to the upper end of 19, a guide groove formed on one side of the main metal shaft fitting 24 pivotally supported in the rear end of the support arm 14 so as to be rotatable in the front-rear direction. A stopper 25 inserted through the spring, and a spring for urging the stopper 25 so that the stopper 25 is always engaged in the left and right engaging recesses of the guide groove.
26, a floating metal fitting 27 that is rotatably supported on the upper part of the main shaft metal fitting 24 in a horizontal direction, and a stopper recess provided on the lower part of the floating metal fitting 27 so as to move back and forth against the spring 26. The stopper pushing metal fitting 28 for releasing the engagement with the stopper pushing metal fitting 28 is inserted through a long guide groove formed in the floating metal fitting 27 in the front-rear direction from the upper portion of the stopper pushing metal fitting 28 to project upward, and the interlocking rod 10 is provided at the upper end portion thereof. A projecting rod 29 having a rear end portion rotatably pivotally mounted, a tension spring 30 for constantly urging the stopper pushing metal piece 28 rearward, and a rotatably supported by the other side portion of the main shaft metal piece 24. A spring hook 32 having a tension spring 31 stretched between the stopper pusher 28 and the front end of the stopper pusher 28 is provided.

Next, 33 is a tractor.
A bracket 35 is integrally fixed to the upper rear end of the tractor body 34, and a plurality of insertion holes 37 are provided at the upper and lower portions of the connecting plate 36, which are long and vertically opposed to each other in the vertical direction of the bracket 35.
Are drilled so as to face each other. Further, connecting pieces 38 are integrally projectingly provided on the left and right parts of the tractor body 34 located at the lower part of the bracket 35.
A base end portion of a lower link 39 is rotatably mounted on a support shaft 40 in a vertical direction on the 38, and tip portions of the left and right lower links 39 are vertically attached to the left and right lower pins 6 of the coupling machine frame 2. It is rotatably attached to the shaft. Further, a PTO shaft (not shown) is rotatably projected at a substantially intermediate portion of the rear end portion of the tractor body 34.

Further, 41 is a mounting bracket, and this mounting bracket 41
Has a vertically long connecting board 42 disposed between the left and right connecting plates 36 of the bracket 35, and the upper and lower ends of the connecting board 42 have upper and lower end portions of the left and right connecting plates 36. Communication holes 43 that communicate with the upper and lower insertion holes 37 formed in the portion are formed respectively. Further, a communication elongated hole 44 that is located between the upper and lower communication holes 43 and that communicates with an insertion hole 37 that is formed in an intermediate portion of the left and right connection plates 36 and that is long in the vertical direction is formed in the connection substrate 42. A circular hole 45 having a diameter larger than the width of the communication elongated hole 44 is continuously formed at the lower end of the communication elongated hole 44. Then, connecting pins 46 are respectively inserted into at least two selected upper and lower insertion holes 37 of the left and right connecting plates 36 and upper and lower communication holes 43 of the connection substrate 42 or the communication hole 43 and the communication long hole 44. The connection board 42 is connected between the left and right connection plates 36 by the upper and lower connection pins 46.

Further, a U-shaped connecting metal fitting 47 as an upper mounting portion is integrally fixed to the upper rear end of the connecting base plate 42, and the left and right mounting plates 48 of the connecting metal fitting 47 are opposed to each other. Have mounting holes 49 facing left and right. The base end of the top link 50 is located between the left and right mounting plates 48.
50a is provided, and the base end portion 50a of the top link 50 is axially rotatably pivoted in the up and down direction by a connecting pin 51 inserted between one of the upper and lower left and right opposing mounting holes 49. The top end of the top link 50 is pivotally attached in a vertically rotatable manner by a connecting pin 5 on the upper end of the connecting machine frame 2.
Further, a mounting rod 52 as a lower mounting portion is integrally protruded downward and rearward at the lower rear end of the connecting board 42, and a hook 53 is integrally fixed to the rear end of the mounting rod 52.
The other end of the chain 13 is detachably attached to 53.

Further, a spacer 54 is detachably inserted from a circular hole 45 formed in an intermediate portion of the connecting board 42 into a communication long hole 44 which is long in the vertical direction. The spacer 54 has a cross-sectional shape that can be inserted into and removed from the circular hole 45, and has a length that is located between the left and right connecting plates 36. Further, on the outer peripheral portion of the intermediate portion in the length direction of the spacer 54, the opposite opening edge portions of the communication long holes 44 which are long in the vertical direction are opposed to each other.
An annular recess 55 that engages with 44a is formed, and a through hole 56 that penetrates the connecting pin 46 is formed at the center in the lengthwise direction. A plurality of types of spacers 54 are prepared having a length such that they can be inserted in a close state into any of the left and right connecting plates 36 having different intervals in the brackets 35 of the various tractors 33.

Next, the operation of the above embodiment will be described.

When the dual plow 1 is connected to the tractor 33, it can be inserted between the left and right connecting plates 36 according to the distance between the bracket 35 fixed to the upper part of the tractor body 34 and the left and right connecting plates 36. A spacer 54 having a size is selected, and the selected spacer 54 is inserted into a circular hole 45 continuous with a vertically elongated long hole 44 formed in the connecting board 42 of the mounting bracket 41, and the spacer 54 The annular concave portion 55 of the circular hole 45 is engaged with the opening edge portion 45a of the circular hole 45, and the spacer 54 is attached at the opening edge portion 45a.
Support.

Next, the connecting board 42 of the mounting member 41 is inserted and arranged between the left and right connecting plates 36, and one of the upper and lower insertion holes 37 of the connecting plate 36 is used to select one of the upper and lower connecting boards 42. The connecting pins 46 are respectively inserted into the communicating hole 43 of the spacer 54, the through hole 56 of the spacer 54, and the upper and lower insertion holes 37 of the other connecting plate 36. The connection boards 42 of are connected. With this connection of the connecting board 42, both ends of the spacer 54, through which the connecting pin 46 is inserted, are arranged in the proximity of the left and right connecting plates 36, and the spacer 54 connects the connecting board 42.
Is positioned, the mounting bracket 41 is prevented from moving in the axial direction of the connecting pin 46, the mounting rod 52 at the bottom of the mounting bracket 41 is prevented from moving in the left-right direction, and the traction efficiency of the chain 13 is improved. It is possible to prevent deterioration of the balance and loss of the balance of pulling the chain 13.

At this time, that is, the through hole 56 of the spacer 54.
When inserting the connecting pin 46 into the inside, if the positions of the insertion holes 37 of the left and right connecting plates 36 and the positions of the through holes 56 of the spacer 54 do not match, the spacer 54 is moved from the position of the circular hole 45 to the position of the circular hole 45. While the annular recess 55 is engaged with the opening edge 44a of the continuous communication long hole 44, the spacer 54 is pushed up along the opening edge 44a and the position of the through hole 56 of the spacer 54 is adjusted to the left and right of the connecting plate 36. The connecting pin 46 is inserted through the insertion hole 37 and the through hole 56 in conformity with the position of the insertion hole 37. Therefore, the left and right connecting plates are formed by the communication elongated hole 44 having the circular hole 45 of the connecting substrate 42 and the spacer 54.
The mounting bracket 41 can be attached to various tractors 33 having different intervals between the spaces 36 and intervals between the upper and lower insertion holes 37.

Next, the top link 50 is placed between the left and right mounting plates 48 of the connecting fitting 47 fixed to the upper rear end of the connecting board 42.
The base end portion 50a of each of the mounting plates 48 is provided, and the mounting link 48 and the top link which face each other at the upper and lower selected positions of the mounting plate 48 which face each other are provided.
Insert the connecting pin 51 into the base end 50a of 50, and
The base end portion 50a of the top link 50 is vertically rotatably connected between the left and right mounting plates 48, and the upper end portion of the connecting machine frame 2 of the dual-purpose plow 1 is attached to the tip end portion of the top link 50. The connecting pin 5 is connected so as to be vertically rotatable. Further, the tip ends of the left and right lower links 39, whose base ends are connected to the lower left and right connecting pieces 38 of the tractor body 34 by a support shaft 40 so as to be rotatable in the up-and-down direction, of the connecting machine frame 2 of the dual-use plow 1. A lower pin 6 protruding leftward and rightward is rotatably connected in a vertical direction.

Further, a coil spring 12 is interposed between the hook 53 of the mounting rod 52 projecting rearward and downward of the mounting bracket 41 and the end of the operating bracket 8 pivotally supported by the connecting machine frame 2. Tension the chain 13. Therefore, by mounting the mounting bracket 41 on the bracket 35 of the tractor body 34, the ground clearance at the connecting position of the top link 50 can be easily set to an appropriate position and the chain 13 can be easily stretched between the operating bracket 8 and the working bracket 8. The dual-purpose plow 1 is simply connected to the tractor 33.

Then, as the top link 50 of the tractor 33 and the left and right lower links 39 are lifted and raised, the connecting frame 2 of the dual-purpose plow 1 is lifted, so that the actuating metal fitting 8 is moved by the coil spring 12 and the chain 13. While being pulled and rotated about the support shaft 9 in the vertical direction, the interlocking rod 10 is moved back and forth, the reversing switching mechanism 4 is switched by the interlocking rod 10, and the reversing switching mechanism 4 is moved. The parallelogram frame 20 is actuated by the rotation of the main shaft 19 of the
3a, 3b, 3c are switched to right inversion or left inversion in the same direction. At this time, the end of the chain 13 has a hook 53 at the rear end of the mounting rod 52 which is provided to project rearward of the mounting bracket 41.
Since it is attached to the chain 13, the chain 13 is stretched in a position largely separated rearward from the PTO shaft of the tractor 33, and therefore, the chain 13 is switched at the time of switching and reversing operation of each of the dual-purpose shells 3a, 3b, 3c. Does not scratch or damage the PTO shaft of the tractor 33.

[0030]

According to the present invention, the upper attachment portion for attaching the base end portion of the top link between the left and right connecting plates fixed to the upper portion of the tractor body and the rearward portion for attaching the end portion of the chain. Since the connecting board of the mounting metal having the protruding lower mounting part is connected by the connecting pin, the dual metal plow can be easily connected to various tractors by this mounting metal, and the lower part of this mounting metal Since the mounting portion is projected rearward, the chain stretched between this lower mounting portion and the operating metal fitting pivotally supported by the dual-coupling frame is the tractor's P
It can be stretched at a position away from the TO shaft, and it is not necessary to rub the PTO shaft with the chain and damage it when the dual-purpose plow switching and reversing operation is performed, and it is necessary to project a locking body for chain installation on the tractor. There is no need to remove the locking body when connecting the power transmission shaft to the PTO shaft, and a long communication hole is formed in the connecting base plate of the mounting bracket in the vertical direction. A circular hole is formed at the end portion of the connection hole, and the insertion hole is inserted into and removed from the circular hole, and there is a through hole that penetrates the annular recess and the connection pin that engages with the communication long hole. Since the spacer of the length located at is provided,
With this spacer, it is possible to connect the mounting brackets in a stable state without lateral movement between the connecting plates of various tractors having different intervals between the left and right connecting plates and between the upper and lower insertion holes of the connecting plates. With this mounting bracket, the chain can be towed at a fixed position in a well-balanced manner, and the operating bracket for switching and reversing the dual-purpose peg can be operated smoothly.

[Brief description of drawings]

FIG. 1 is a side view of a dual-purpose interlocking device according to an embodiment of the present invention.

FIG. 2 is a side view showing a connection state of the mounting brackets.

FIG. 3 is a cross-sectional view taken along line a-a of the above.

FIG. 4 is a side view showing a detached state of the same mounting bracket.

FIG. 5 is a sectional view of the same.

[Explanation of symbols]

 1 Dual ply 2 Coupling machine frame 3 Dual ply 4 Inversion switching mechanism 8 Actuating bracket 10 Interlocking rod 13 Chain 33 Tractor 34 Tractor body 36 Connecting plate 37 Insertion hole 39 Lower link 41 Mounting bracket 42 Connecting board 43 Communication hole 44 Communication Long hole 45 Circular hole 46 Connecting pin 47 Upper mounting part 50 Top link 52 Lower mounting part 54 Spacer 55 Annular recess 56 Through hole

Claims (1)

[Claims] 1. A tractor having a top link and a lower link, and a connecting frame for connecting the top link and the lower link of the tractor, wherein a dual-purpose cleaver and an inversion switching mechanism for inverting the dual-purpose cleaver are provided. A dual-purpose plow, an actuating metal piece pivotally supported in the vertical direction on the connecting machine frame of the dual-purpose plow and connecting an interlocking rod of the reversal switching mechanism at one end, and an upper part attached to the tractor body. And a mounting metal fitting for rotatably attaching the base end portion of the top link and tensioning a chain between the lower end and the other end of the operating metal fitting. The opposite left and right connecting plates are integrally fixed, and a plurality of insertion holes for inserting the connecting pins are formed on the upper and lower sides of the left and right connecting plates so as to face each other, and the mounting bracket is connected between the left and right connecting plates. Has a connecting board, and An upper attachment portion for rotatably attaching the base end portion of the top link is formed in the portion, and a lower attachment portion for attaching the end portion of the chain is provided on the lower portion thereof so as to project rearward, A communication hole that communicates with the upper and lower insertion holes and a communication elongated hole that is long in the up-down direction are formed vertically on the connection board, and a circular hole having a diameter larger than the width of the communication elongated hole is formed at the end of the communication elongated hole. And has a cross-sectional shape that can be inserted into and removed from the circular hole and has a length that is located between the left and right connecting plates, and has an annular concave portion that engages with the communication elongated hole in the outer peripheral portion, and A dual-purpose stabbing joint device, characterized in that a spacer having a through hole penetrating the connecting pin in the vertical direction is provided.