CN113653397A

CN113653397A - Communication construction is with supplementary erection equipment of outdoor pole

Info

Publication number: CN113653397A
Application number: CN202110935650.5A
Authority: CN
Inventors: 张志欣; 李春林; 马增辉; 李建永
Original assignee: China Telecommunication Construction 1st Engineering Co ltd
Current assignee: China Telecommunication Construction 1st Engineering Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2021-11-16

Abstract

The invention belongs to the technical field of auxiliary installation, and particularly relates to an auxiliary outdoor electric pole installation device for communication construction, which aims at the problems that an electric pole has large size and mass, and large-scale equipment or a large amount of manpower is needed to be used for erecting the electric pole. According to the pole erecting device, the base with the brake wheels is arranged for transferring the pole, when the pole is transferred to the pole erecting position, the bearing box is controlled through the angle adjusting mechanism to enable the pole outlet to rotate downwards, so that the pole in the bearing box is conveyed by the guide rod mechanism and slides downwards to finally enter the pole erecting position, the purpose of time and labor saving pole erecting is achieved, when the bearing box is adjusted in a rotating mode, the bearing box is subjected to limiting and reinforcing treatment through the reinforcing mechanism, and the stability of the bearing box during inclining is improved.

Description

Communication construction is with supplementary erection equipment of outdoor pole

Technical Field

The invention relates to the technical field of auxiliary installation, in particular to an outdoor electric pole auxiliary installation device for communication construction.

Background

With the continuous development of society, communication comprises two types of people communication and event communication, which are the same as messages and require timely and accurate reporting of meaningful people and things in life, in communication construction, a telegraph pole is required to be transported to the side of a wire pit, then the telegraph pole is erected and installed, and at the moment, an auxiliary telegraph pole installation device is used.

The utility pole is generally cast by cement, and is erected and mounted on a mounting seat prepared in advance, but the utility pole has a large size and mass, and large-scale equipment or a large amount of manpower is needed for erecting the utility pole, but a large amount of time and resources are needed for mounting the utility pole, so that the research on the outdoor utility pole auxiliary mounting equipment for communication construction, which is simple in operation and saves manpower and material resources, is necessary.

Disclosure of Invention

The invention provides an outdoor electric pole auxiliary installation device for communication construction, which is based on the technical problems that an electric pole has large size and mass, large-scale equipment is required to be used for erecting the electric pole or a large amount of manpower is required.

The invention provides an outdoor electric pole auxiliary mounting device for communication construction, which comprises a base, wherein four corners of the outer wall of the bottom of the base are fixedly connected with brake wheels, a bottom plate is arranged at the top of the base, a moving mechanism is arranged between the bottom plate and the base, support columns are fixedly connected to two sides of the outer wall of the top of the bottom plate, a bearing box is arranged between two sides of each support column, the outer wall of each support column is rotatably connected with a rotating shaft, reinforcing mechanisms are arranged on the outer walls of two sides of each rotating shaft, a rotating lug is fixedly connected to the outer wall of each rotating shaft, the top of each rotating lug is fixedly connected with the bearing box, the outer wall of one end of each bearing box is provided with a rod inlet, the other end of each bearing box is provided with a rod outlet, the inner wall of each bearing box is provided with a guide rod mechanism, and two ends of the outer wall of the bottom of each bearing box are provided with angle adjusting mechanisms.

Preferably, the moving mechanism comprises a motor and a sliding block, a sliding groove is formed in the outer wall of the top of the base, the sliding block is connected with the inner wall of the sliding groove in a sliding mode, the top of the sliding block is fixedly connected with the bottom plate, a threaded screw rod is connected with the outer wall of the sliding block in a threaded mode, the threaded screw rod is connected with the sliding groove in a rotating mode, and one end of the threaded screw rod is fixedly connected with the motor.

Preferably, the guide rod mechanism includes backing plate and first guide pulley, bears a plurality of second springs of incasement wall bottom fixedly connected with, second spring top and backing plate fixed connection, and backing plate both ends outer wall all sets up to the slope, and backing plate top and first guide pulley rotate to be connected, and first guide pulley sets up to evenly distributed, and backing plate top both ends all are provided with protection machanism.

Preferably, the protection mechanism comprises a side plate and a second guide wheel, a plurality of third springs are fixedly connected to two sides of the inner wall of the bearing box, the other ends of the third springs are fixedly connected with the side plate, the outer wall of the other end of the side plate is fixedly connected with the second guide wheel, and the second guide wheel is arranged to be uniformly distributed.

Preferably, bearing box top outer wall threaded connection has a plurality of second screw rods, and bearing box inner wall top is provided with the clamp plate, and clamp plate top and second screw rod rotate to be connected, a plurality of steel sheets of clamp plate bottom fixedly connected with, the steel sheet sets up to the slope, and the steel sheet other end is towards the pole mouth that advances, and steel sheet bottom fixedly connected with second anti-skidding cushion.

Preferably, the reinforcing mechanism includes solid fixed ring and dead lever, gu fixed ring and axis of rotation outer wall threaded connection, dead lever and solid fixed ring outer wall fixed connection, the dead lever is the four corners and distributes.

Preferably, angle adjustment mechanism includes first hoist mechanism and second hoist mechanism, the base is close to a pole mouth one end outer wall and has been seted up the equipment groove, first hoist mechanism and equipment inslot wall fixed connection, equipment inslot outer wall fixedly connected with equipment apron, the first steel cable of first hoist mechanism one end fixedly connected with, the first steel cable other end and bear bottom of the case portion outer wall fixed connection, pole mouth one end outer wall fixed connection is kept away from at second hoist mechanism bottom and bottom plate top, second hoist mechanism top fixedly connected with second steel cable, first steel cable one end bottom outer wall fixed connection is kept away from to the second steel cable other end and bear the case.

Preferably, the equal fixedly connected with backup pad of support column both ends outer wall, backup pad bottom and bottom plate fixed connection, the bottom plate is close to a pole mouth one end and has seted up scarce groove.

Preferably, the bearing box is close to a top and a bottom of an outer wall of one end of the rod outlet and is connected with a buffer plate in a rotating mode, one end of the buffer plate is fixedly connected with a first spring, the other end of the first spring is fixedly connected with the outer wall of the bearing box, the buffer plate is far away from a first anti-skidding rubber mat fixedly connected with one end of the rod outlet, and one end of the rod outlet is provided with a first screw rod which is in threaded connection with the buffer plate.

Compared with the prior art, the invention provides an outdoor electric pole auxiliary installation device for communication construction, which has the following beneficial effects:

1. this communication construction is with supplementary erection equipment of outdoor pole, utilize the axis of rotation to rotate through setting up the bearing box, thereby can rotate between the support column, the pole inlet slope up through setting up angle adjustment mechanism control bearing box one end, thereby be convenient for carry the pole and get into the bearing box in, make the bearing box level place through setting up angle adjustment mechanism, carry out the transportation of pole through setting up the base that has the brake wheel, when transporting the pole setting position, make the pole outlet rotate downwards through angle adjustment mechanism control bearing box, thereby make the pole in the bearing box pass through guide bar mechanism's transport, the lapse, finally get into the pole setting position, the purpose of labour saving and time saving pole setting has been realized, when the bearing box rotates the regulation, carry out spacing reinforcement to the bearing box through strengthening mechanism and handle, stability when improving the bearing box slope.

2. This communication construction is with supplementary erection equipment of outdoor pole, can play the effect of buffering protection when the pole is transported or is removed through the third spring of second spring and curb plate one end in setting up the guide arm mechanism in the bearing box, avoid the vibration to lead to the pole to damage, height that can control the clamp plate by the second screw rod through setting up, thereby can utilize the steel sheet of its outer wall to carry out anti-skidding to the pole and handle, the second non-skid rubber mat through setting up the steel sheet bottom can further improve non-skid property, improve the stability of pole when transporting, the stability of support column can be improved through the backup pad that sets up the support column outer wall.

3. This communication construction is with supplementary erection equipment of outdoor pole, through setting up the buffer board that bears case play pole mouth one end and utilizing first spring and bearing case outer wall to realize elastic connection, thereby can carry out elastic buffer to the pole when going out the pole and handle, avoid the pole to cause the damage in the hole with higher speed cunning, can play the effect of protection when loading the pole through the first screw rod that sets up the buffer board outer wall, avoid the pole to drop, when needs carry out the pole setting, only need to take out through rotating.

Drawings

Fig. 1 is a schematic structural diagram of a main body of an outdoor electric pole auxiliary installation device for communication construction according to the present invention;

fig. 2 is a schematic diagram of a pole entering stage of the outdoor electric pole auxiliary installation equipment for communication construction, which is provided by the invention;

fig. 3 is a schematic diagram of a pole conveying stage of the outdoor pole auxiliary installation equipment for communication construction according to the present invention;

fig. 4 is a schematic diagram of a pole descending stage of the outdoor electric pole auxiliary installation equipment for communication construction according to the present invention;

fig. 5 is a schematic cross-sectional structure view of a carrying box of the outdoor electric pole auxiliary installation device for communication construction according to the present invention.

In the figure: the device comprises a base 1, a brake wheel 2, a thread screw rod 3, a sliding groove 4, a device groove 5, a first winding mechanism 6, a device cover plate 7, a first steel rope 8, a rod outlet 9, a first anti-skid rubber pad 10, a buffer plate 11, a first screw rod 12, a first spring 13, a second screw rod 14, a bearing box 15, a second anti-skid rubber pad 16, a pressing plate 17, a steel plate 18, a first guide wheel 19, a support column 20, a rod inlet 21, a backing plate 22, a second spring 23, a rotating shaft 24, a rotating lug 25, a second steel rope 26, a second winding mechanism 27, a bottom plate 28, a motor 29, a sliding block 30, a second guide wheel 31, a third spring 32, a side plate 33, a support plate 34, a groove 35, a fixing ring 36 and a fixing rod 37.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, an outdoor electric pole auxiliary mounting device for communication construction comprises a base 1, brake wheels 2 are fixedly connected to four corners of the outer wall of the bottom of the base 1, a bottom plate 28 is arranged on the top of the base 1, a moving mechanism is arranged between the bottom plate 28 and the base 1, support columns 20 are fixedly connected to two sides of the outer wall of the top of the bottom plate 28, a bearing box 15 is arranged between two sides of each support column 20, a rotating shaft 24 is rotatably connected to the outer wall of each support column 20, reinforcing mechanisms are arranged on the outer walls of two sides of the rotating shaft 24, a rotating lug 25 is fixedly connected to the outer wall of the rotating shaft 24, the top of the rotating lug 25 is fixedly connected with the bearing box 15, a rod inlet 21 is arranged on the outer wall of one end of the bearing box 15, a rod outlet 9 is arranged on the other end of the bearing box 15, a guide rod mechanism is arranged on the inner wall of the bearing box 15, angle adjusting mechanisms are arranged on two ends of the outer wall of the bottom of the bearing box 15, and are rotated by the rotating shaft 24, thereby can rotate between support column 20, the inlet 21 slope of bearing box 15 one end is up through setting up angle adjustment mechanism control, thereby be convenient for carry the pole and get into in the bearing box 15, make bearing box 15 level place through setting up angle adjustment mechanism, carry out the transportation of pole through setting up base 1 that has brake wheel 2, when transporting the pole setting position, make out pole mouth 9 and rotate downwards through angle adjustment mechanism control bearing box 15, thereby make the pole in the bearing box 15 pass through the transport of guide bar mechanism, the lapse, finally get into the pole setting position, the purpose of labour saving and time saving pole setting has been realized, when bearing box 15 rotates the regulation, carry out spacing reinforcement processing through strengthening mechanism to bearing box 15, stability when improving bearing box 15 slope.

According to the invention, the moving mechanism comprises a motor 29 and a sliding block 30, the outer wall of the top of the base 1 is provided with a sliding groove 4, the sliding block 30 is in sliding connection with the inner wall of the sliding groove 4, the top of the sliding block 30 is fixedly connected with a bottom plate 28, the outer wall of the sliding block 30 is in threaded connection with a threaded lead screw 3, the threaded lead screw 3 is in rotating connection with the sliding groove 4, and one end of the threaded lead screw 3 is fixedly connected with the motor 29, so that the bottom plate 28 and a bearing box 15 on the top of the bottom plate have the capability of transverse displacement adjustment, and the vertical rod can conveniently adjust the position;

the guide rod mechanism comprises a backing plate 22 and a first guide wheel 19, a plurality of second springs 23 are fixedly connected to the bottom of the inner wall of the bearing box 15, the tops of the second springs 23 are fixedly connected with the backing plate 22, the outer walls of two ends of the backing plate 22 are all set to be inclined, the top of the backing plate 22 is rotatably connected with the first guide wheel 19, the first guide wheel 19 is uniformly distributed, two ends of the top of the backing plate 22 are respectively provided with a protection mechanism, each protection mechanism comprises a side plate 33 and a second guide wheel 31, two sides of the inner wall of the bearing box 15 are fixedly connected with a plurality of third springs 32, the other ends of the third springs 32 are fixedly connected with the side plate 33, the outer wall of the other end of the side plate 33 is fixedly connected with the second guide wheel 31, the second guide wheels 31 are uniformly distributed, the outer wall of the top of the bearing box 15 is in threaded connection with a plurality of second screw rods 14, the top of the inner wall of the bearing box 15 is provided with a pressing plate 17, the top of the pressing plate 17 is rotatably connected with the second screw rods 14, a plurality of steel plates 18 are fixedly connected to the bottom of the pressing plate 17, the steel plate 18 is arranged to be inclined, the other end of the steel plate 18 faces the rod inlet 21, the bottom of the steel plate 18 is fixedly connected with a second anti-skid rubber pad 16, the outer walls of the two ends of the supporting column 20 are fixedly connected with supporting plates 34, the bottom of the supporting plates 34 is fixedly connected with a bottom plate 28, one end of the bottom plate 28, which is close to the rod outlet 9, is provided with a notch 35, the second spring 23 in the guide rod mechanism in the bearing box 15 and the third spring 32 at one end of the side plate 33 are arranged to play a role of buffering and protecting when the electric pole is transported or moved, so that the electric pole is prevented from being damaged due to vibration, the height of the pressure plate 17 can be controlled by the second screw rod 14, therefore, the steel plate 18 on the outer wall of the support column can be used for performing anti-skid treatment on the electric pole, the anti-skid performance can be further improved by arranging the second anti-skid rubber mat 16 at the bottom of the steel plate 18, the stability of the electric pole during transportation is improved, and the stability of the support column can be improved by arranging the support plate 34 on the outer wall of the support column 20;

the reinforcing mechanism comprises a fixing ring 36 and a fixing rod 37, the fixing ring 36 is in threaded connection with the outer wall of the rotating shaft 24, the fixing rod 37 is fixedly connected with the outer wall of the fixing ring 36, and the fixing rod 37 is distributed in four corners, so that the bearing box 15 has higher stability when inclined;

the degree adjusting mechanism comprises a first hoisting mechanism 6 and a second hoisting mechanism 27, an equipment groove 5 is formed in the outer wall of one end, close to the rod outlet 9, of the base 1, the inner wall of the first hoisting mechanism 6 is fixedly connected with the inner wall of the equipment groove 5, an equipment cover plate 7 is fixedly connected with the outer wall of the equipment groove 5, a first steel rope 8 is fixedly connected with one end of the first hoisting mechanism 6, the other end of the first steel rope 8 is fixedly connected with the outer wall of the bottom of the bearing box 15, the outer wall of the bottom of the second hoisting mechanism 27 and the outer wall of one end, far away from the rod outlet 9, of the top of the bottom plate 28 are fixedly connected, a second steel rope 26 is fixedly connected with the top of the second hoisting mechanism 27, the other end of the second steel rope 26 is fixedly connected with the outer wall of the bottom of one end, far away from the first steel rope 8, of the bearing box 15, and the purpose of rotation adjustment of the two ends of the bearing box 15 is achieved;

the top and the bottom of the outer wall of one end of the bearing box 15 close to the rod outlet 9 are both rotationally connected with a buffer plate 11, one end of the buffer plate 11 is fixedly connected with a first spring 13, the other end of the first spring 13 is fixedly connected with the outer wall of the bearing box 15, one end of the buffer plate 11 far away from the rod outlet 9 is fixedly connected with a first anti-skid rubber mat 10, one end of the rod outlet 9 is provided with a first screw 12, the first screw 12 is in threaded connection with the buffer plate 11, the buffer plate 11 at one end of the rod outlet 9 of the bearing box 15 is elastically connected with the outer wall of the bearing box 15 by a first spring 13, thereby the electric pole can be elastically buffered when being taken out of the pole, the electric pole is prevented from sliding into the pit at a high speed to cause damage, the effect of protection can be played when loading the pole to first screw 12 through setting up 11 outer walls of buffer board, avoids the pole to drop, when needs carry out the pole setting, only needs can take out through rotating.

During the use, utilize axis of rotation 24 to rotate through setting up bearing box 15, thereby can rotate between support column 20, the pole mouth 21 slope up through setting up angle adjustment mechanism control bearing box 15 one end, thereby be convenient for carry the pole and get into bearing box 15 in, make bearing box 15 level place through setting up angle adjustment mechanism, carry out the transportation of pole through setting up base 1 that has brake wheel 2, when transporting to the pole setting position, make play pole mouth 9 rotate downwards through angle adjustment mechanism control bearing box 15, thereby make the pole in bearing box 15 pass through guide bar mechanism's transport, the lapse, finally get into the pole setting position, the purpose of labour saving and time saving pole setting has been realized, when bearing box 15 rotates the adjustment, carry out spacing reinforcement processing through strengthening mechanism to bearing box 15, stability when improving bearing box 15 slopes, can be at electricity through setting up second spring 23 in the guide bar mechanism in bearing box 15 and third spring 32 of curb plate 33 one end The height of the pressing plate 17 can be controlled by the second screw rod 14, so that the steel plate 18 on the outer wall of the pressing plate can be used for anti-skidding treatment of the electric pole, the anti-skidding performance can be further improved by the second anti-skidding rubber cushion 16 at the bottom of the steel plate 18, the stability of the electric pole during transportation is improved, the stability of the supporting column can be improved by the supporting plate 34 on the outer wall of the supporting column 20, the buffer plate 11 at the end of the pole outlet 9 of the bearing box 15 is elastically connected with the outer wall of the bearing box 15 by the first spring 13, so that the electric pole can be elastically buffered during pole outlet, the electric pole is prevented from sliding into a pit at a higher speed to cause damage, the first screw rod 12 on the outer wall of the buffer plate 11 can play a role of protection during pole loading, and is prevented from dropping, when the pole setting is needed, the pole setting can be taken out only by rotating.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides an outdoor pole auxiliary erection equipment for communication construction, includes base (1), base (1) bottom outer wall four corners position all fixedly connected with brake wheel (2), its characterized in that, base (1) top is provided with bottom plate (28), be provided with moving mechanism between bottom plate (28) and base (1), bottom plate (28) top outer wall both sides all fixedly connected with support column (20), be provided with bearing box (15) between support column (20) both sides, support column (20) outer wall rotates and is connected with axis of rotation (24), axis of rotation (24) both sides outer wall all is provided with reinforcing mechanism, axis of rotation (24) outer wall fixedly connected with rotates lug (25), rotate lug (25) top and bearing box (15) fixed connection, bearing box (15) one end outer wall is provided with into pole mouth (21), the other end of the bearing box (15) is provided with a rod outlet (9), the inner wall of the bearing box (15) is provided with a guide rod mechanism, and two ends of the outer wall of the bottom of the bearing box (15) are provided with angle adjusting mechanisms.

2. The outdoor electric pole auxiliary mounting device for communication construction as claimed in claim 1, wherein the moving mechanism comprises a motor (29) and a sliding block (30), a sliding groove (4) is formed in the outer wall of the top of the base (1), the sliding block (30) is in sliding connection with the inner wall of the sliding groove (4), the top of the sliding block (30) is fixedly connected with the bottom plate (28), a threaded screw rod (3) is in threaded connection with the outer wall of the sliding block (30), the threaded screw rod (3) is in rotating connection with the sliding groove (4), and one end of the threaded screw rod (3) is fixedly connected with the motor (29).

3. The outdoor electric pole auxiliary mounting device for communication construction as claimed in claim 1, wherein the guide rod mechanism comprises a base plate (22) and a first guide wheel (19), a plurality of second springs (23) are fixedly connected to the bottom of the inner wall of the carrying box (15), the tops of the second springs (23) are fixedly connected with the base plate (22), the outer walls of the two ends of the base plate (22) are both inclined, the tops of the base plate (22) are rotatably connected with the first guide wheel (19), the first guide wheel (19) is uniformly distributed, and protection mechanisms are arranged at the two ends of the top of the base plate (22).

4. The outdoor electric pole auxiliary mounting device for communication construction as claimed in claim 3, wherein the protection mechanism comprises a side plate (33) and a second guide wheel (31), a plurality of third springs (32) are fixedly connected to two sides of the inner wall of the carrying box (15), the other ends of the third springs (32) are fixedly connected with the side plate (33), the outer wall of the other end of the side plate (33) is fixedly connected with the second guide wheel (31), and the second guide wheel (31) is uniformly distributed.

5. The outdoor electric pole auxiliary mounting equipment for communication construction is characterized in that a plurality of second screw rods (14) are connected to the outer wall of the top of the bearing box (15) in a threaded mode, a pressing plate (17) is arranged on the top of the inner wall of the bearing box (15), the top of the pressing plate (17) is rotatably connected with the second screw rods (14), a plurality of steel plates (18) are fixedly connected to the bottom of the pressing plate (17), the steel plates (18) are arranged to be inclined, the other ends of the steel plates (18) face a pole inlet (21), and a second anti-skid rubber mat (16) is fixedly connected to the bottom of each steel plate (18).

6. The outdoor electric pole auxiliary mounting device for communication construction as recited in claim 1, wherein the reinforcing mechanism comprises a fixing ring (36) and a fixing rod (37), the fixing ring (36) is in threaded connection with the outer wall of the rotating shaft (24), the fixing rod (37) is in fixed connection with the outer wall of the fixing ring (36), and the fixing rod (37) is distributed in four corners.

7. The outdoor electric pole auxiliary installation equipment for communication construction as claimed in claim 1, angle adjustment mechanism includes that first winding mechanism (6) and second hoist mechanism (27) raise, base (1) is close to play pole mouth (9) one end outer wall and has seted up equipment groove (5), first winding mechanism (6) and equipment groove (5) inner wall fixed connection, equipment groove (5) outer wall fixedly connected with equipment apron (7), first winding mechanism (6) one end fixedly connected with first steel cable (8), first steel cable (8) other end and bearing box (15) bottom outer wall fixed connection, pole mouth (9) one end outer wall fixed connection is kept away from at second hoist mechanism (27) bottom and bottom plate (28) top, second hoist mechanism (27) top fixedly connected with second steel cable (26), first steel cable (8) one end bottom outer wall fixed connection is kept away from to second steel cable (26) other end and bearing box (15).

8. The outdoor electric pole auxiliary mounting equipment for communication construction as claimed in claim 1, wherein the outer walls of both ends of the supporting column (20) are fixedly connected with supporting plates (34), the bottom of the supporting plates (34) is fixedly connected with the bottom plate (28), and one end of the bottom plate (28) close to the pole outlet (9) is provided with a notch (35).

9. The outdoor electric pole auxiliary mounting device for communication construction as recited in claim 1, wherein the top and bottom of the outer wall of one end of the bearing box (15) close to the pole outlet (9) are rotatably connected with a buffer plate (11), one end of the buffer plate (11) is fixedly connected with a first spring (13), the other end of the first spring (13) is fixedly connected with the outer wall of the bearing box (15), one end of the buffer plate (11) far away from the pole outlet (9) is fixedly connected with a first anti-skid rubber pad (10), one end of the pole outlet (9) is provided with a first screw (12), and the first screw (12) is in threaded connection with the buffer plate (11).