CN113460641A

CN113460641A - Method for sorting scaffold fasteners for building

Info

Publication number: CN113460641A
Application number: CN202110783848.6A
Authority: CN
Inventors: 白晓宇
Original assignee: Gansu Bangxing Construction Machinery Co ltd
Current assignee: Shandong Xinshang Metal Products Co.,Ltd.
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-10-01
Anticipated expiration: 2041-07-12
Also published as: CN113460641B

Abstract

The invention belongs to the field of engineering construction, and particularly relates to a method for sorting scaffold fasteners for buildings, which is carried out by matching with a scaffold fastener sorting system. The method can realize the automatic separation of the three fasteners, save the cost and reduce the labor intensity of workers.

Description

Method for sorting scaffold fasteners for building

Technical Field

The invention belongs to the field of engineering construction, and particularly relates to a method for sorting scaffold fasteners for buildings.

Background

In recent years, with the continuous development of the building industry, the usage amount of the scaffold fasteners is increased. Due to the complex use environment of a construction site, the used scaffold fastener is seriously damaged and needs to be returned to the field for sorting and maintenance. Traditional fastener sorting mode of unloading mainly relies on artifical sorting of unloading, and not only waste time and energy the cost big, and intensity of labour is big moreover easily causes the raise dust pollution, easily causes occupational disease's emergence, and the quality of letter sorting still can not be ensured, consequently designs scaffold for building fastener sorting method and sorts scaffold fastener.

Disclosure of Invention

The invention aims to provide a method for sorting scaffold fasteners for buildings, aiming at the problems in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a method for sorting scaffold fasteners for buildings is carried out by matching with a scaffold fastener sorting system, the scaffold fastener sorting system comprises a separation lower frame, wherein separation rotating shafts are respectively arranged at two ends of the separation lower frame, the separation rotating shaft is sleeved with a separation roller, the separation roller is provided with a separation belt, the separation lower frame is provided with a separation mechanism, the separation belt is abutted with a swing working plate, a supporting mechanism and a swing power mechanism are arranged below the swing working plate, the swing working plate is sequentially abutted with a sorting belt, the lower part of the sorting belt is provided with a sorting machine frame, the upper part of the sorting belt is provided with a sorting mechanism, the sorting belt is sequentially abutted with a separating belt, the separating mechanism is arranged on the upper portion of the separating belt, and force measuring buttons are evenly arranged on the separating belt.

Preferably, the upper blocking frame is symmetrically arranged on the lower blocking frame, the upper blocking frame is sequentially provided with a blocking plate group and a telescopic cylinder on the upper portion of the blocking belt, the telescopic cylinder is provided with a telescopic rod in the direction of the central line of the blocking belt, the telescopic rod is provided with a stop block, and the stop block is provided with a gasket.

Preferably, swing support rods are symmetrically arranged below the swing working plate, an upper limiting plate is arranged below the swing support rods, a fixed shaft sleeve is fixedly arranged at the geometric center of the upper limiting plate, a lower limiting plate is fixedly arranged on the fixed shaft sleeve, a lower limiting block is arranged at the lower end of the fixed shaft sleeve, a chute plate is clamped between the upper limiting plate and the lower limiting plate, a swing rack is arranged below the chute plate, a zigzag chute is formed in the chute plate, a rotatable third swing rotating shaft is sleeved in the fixed shaft sleeve, an upper limiting block is arranged at the upper end of the third swing rotating shaft, the third swing rotating shaft penetrates through the zigzag chute, a rotatable second swing rod is arranged between the upper limiting plate and the upper limiting block of the third swing rotating shaft, a rotatable second swing rotating shaft is sleeved at the tail end of the second swing rod, and a rotatable first swing rod is sleeved on the second swing rotating shaft, the tail end of the first swing rod is provided with a first swing rotating shaft, a speed changer is arranged below the first swing rotating shaft, and a universal motor is arranged on the input side of the speed changer.

Preferably, letter sorting frame both ends are equipped with the letter sorting pivot respectively, the cover has the letter sorting cylinder in the letter sorting pivot, be equipped with the letter sorting belt on the letter sorting cylinder, the letter sorting frame to letter sorting belt axis direction symmetry is equipped with the baffle support, be equipped with the letter sorting baffler on the baffle support, one side of letter sorting frame is equipped with fixed group's board support, it dials the board to be equipped with fixedly on the board support to fix, fixed group the board with the below of letter sorting belt is equipped with right angle fastener and collects the basket.

Preferably, the two ends of the separating rack are provided with separating rotating shafts, the separating rotating shafts are sleeved with separating rollers, the separating rollers are sleeved with separating belts, the separating rack is provided with a stepping motor, the stepping motor is provided with a shifting plate shaft, the shifting plate shaft is provided with a movable shifting plate, the separating rack is provided with an external connecting block supporting plate, an external connecting block is arranged on the external connecting block supporting plate, a rotating fastener collecting basket is arranged below the separating belts and the movable shifting plate, and a butt joint fastener collecting basket is arranged below the tail ends of the separating belts.

Preferably, be equipped with insulating housing on the separation belt, be equipped with the current conducting plate of reciprocating sliding in the insulating housing, the current conducting plate with be equipped with the spring between the insulating housing, the atress board has set firmly on the current conducting plate, the inboard symmetry of insulating housing is equipped with first left conductive joint and first right conductive joint, insulating housing is inboard first left conductive joint and first right conductive joint lower part symmetry are equipped with left conductive joint of second and the right conductive joint of second, it has lower conductive circuit to connect under the first right conductive joint, it has last conductive circuit to connect under the right conductive joint of second, it has last conductive joint to go up conductive circuit, conductive joint under the lower conductive circuit, go up conductive joint and conductive joint's external contact all with the side of separation belt flushes down.

Preferably, an upper sliding groove is formed in the external connecting block, an upper conductive sliding block which slides in a reciprocating manner is arranged in the upper sliding groove, an upper spring is arranged between the upper conductive sliding block and the upper sliding groove, a conductive upper conductive circuit is arranged in the external connecting block and is always abutted to the upper conductive sliding block, an upper conductive connector is always abutted to the upper conductive sliding block, a lower sliding groove is formed in the external connecting block, a lower conductive sliding block which slides in a reciprocating manner is arranged in the lower sliding groove, a lower spring is arranged between the lower conductive sliding block and the lower sliding groove, a conductive lower conductive circuit is arranged in the external connecting block and is always abutted to the lower conductive sliding block, and the lower conductive sliding block is always abutted to the lower conductive connector.

Has the advantages that:

compared with the prior art, the invention can automatically sort out the right-angle fasteners through the fixed shifting plate, and can automatically separate the butt fasteners and the rotary fasteners through the force measuring button and the movable shifting plate, thereby saving time cost, improving efficiency, improving labor conditions of workers, reducing labor intensity of the workers and ensuring more reliable sorting result.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the blocking mechanism;

FIG. 3 is a cross-sectional view of the blocking mechanism;

FIG. 4 is a top view of the swing mechanism;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 4;

FIG. 6 is a cross-sectional view of the swing mechanism;

FIG. 7 is a cross-sectional view taken at A-A of FIG. 6;

FIG. 8 is a cross-sectional view taken at B-B of FIG. 6;

FIG. 9 is a top view of the sorting mechanism;

FIG. 10 is a front view of the sorting mechanism;

FIG. 11 is a top view of the detachment mechanism;

FIG. 12 is a front view of the release mechanism;

FIG. 13 is an enlarged view of a portion of FIG. 1 at D;

FIG. 14 is a cross-sectional view of FIG. 13;

fig. 15 is a partial cross-sectional view at E-E of fig. 11.

In the figure, a blocking belt 10, a blocking rotating shaft 11, a blocking lower rack 12, a blocking upper rack 13, a blocking plate group 14, a telescopic cylinder 15, a telescopic rod 16, a stop 17, a gasket 18, a blocking roller 19, a swing working plate 20, a swing support rod 21, an upper stop block 22, an upper stop block 23, a chute plate 24, a lower stop plate 25, a lower stop block 26, a third swing rotating shaft 27, a fixed shaft sleeve 28, a swing rack 29, a second swing rotating shaft 30, a first swing rod 31, a first swing rotating shaft 32, a speed changer 33, a zigzag chute 34, a second swing rod 35, a universal motor 36, a sorting rotating shaft 37, a partition plate bracket 38, a sorting blocking plate 39, a fixed shifting plate bracket 40, a fixed shifting plate 41, a sorting rack 42, a right-angle fastener collecting basket 43, a sorting belt 44, a sorting roller 45, a separating rotating shaft 46, a separating belt 47, a force measuring button 48 and a rotary fastener collecting basket 49, butt joint fastener collection basket 50, activity dial plate 51, dial plate shaft 52, step motor 53, separation frame 54, separation cylinder 55, stress board 56, conducting plate 57, first right conducting joint 58, second right conducting joint 59, upper conducting circuit 60, lower conducting circuit 61, lower conducting joint 62, upper conducting joint 63, second left conducting joint 64, first left conducting joint 65, insulating housing 66, spring 67, upper conducting slide 68, upper outer conducting circuit 69, upper chute 70, upper spring 71, lower chute 72, lower spring 73, lower outer conducting circuit 74, external connecting block 75, lower conducting slide 76, external connecting block support plate 77.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a method for sorting scaffold fasteners for construction, which is performed in combination with a scaffold fastener sorting system, this scaffold puts up fastener sorting device includes separation

lower carriage

12, 12 both ends of separation lower carriage are equipped with separation pivot 11 respectively, the cover has separation cylinder 19 on the separation pivot 11, be equipped with separation belt 10 on the separation cylinder 19, be equipped with separation mechanism on the separation lower carriage 12, separation belt 10 butt has swing working plate 20, swing working plate 20 has supporting mechanism and swing power unit, swing working plate 20 has butt in order to have letter sorting belt 44, letter sorting belt 44 lower part is equipped with letter sorting frame 42, letter sorting belt 44 upper portion is equipped with letter sorting mechanism, letter sorting belt 44 has separation belt 47 in order the butt, separation belt 47 lower part is equipped with separation frame 54, separation belt 47 upper portion is equipped with separating mechanism, evenly be equipped with dynamometry button 48 on the separation belt.

As shown in fig. 2 and 3, the upper blocking frame 13 is symmetrically arranged on the lower blocking frame 12, the upper blocking frame 13 is sequentially provided with a blocking plate group 14 and a telescopic cylinder 15 on the upper portion of the blocking belt 10, the telescopic cylinder 15 is provided with a telescopic rod 16 in the direction of the central line of the blocking belt 10, the telescopic rod 16 is provided with a stop block 17, and the stop block 17 is provided with a gasket 18.

As shown in fig. 4, 5, 6, 7 and 8, the swing working plate 20 is symmetrically provided with a swing supporting rod 21 below, the swing supporting rod 21 is provided with an upper limiting plate 23 below, a fixed shaft sleeve 28 is fixedly arranged at the geometric center of the upper limiting plate 23, a lower limiting plate 25 is fixedly arranged on the fixed shaft sleeve 28, a lower limiting block 26 is arranged at the lower end of the fixed shaft sleeve 28, a chute plate 24 is clamped between the upper limiting plate 23 and the lower limiting plate 25, a swing frame 29 is arranged below the chute plate 24, a zigzag chute 34 is arranged on the chute plate 24, a rotatable third swing rotating shaft 27 is sleeved in the fixed shaft sleeve 28, an upper limiting block 22 is arranged at the upper end of the third swing rotating shaft 27, the third swing rotating shaft 27 passes through the zigzag chute 34, a rotatable second swing rod 35 is arranged between the upper limiting plate 23 and the upper limiting block 22 on the third swing rotating shaft 27, a rotatable second swing rotating shaft 30 at the tail end of the second swing rod 35 is sleeved on the second swing rotating shaft 30, the end of the first swing lever 31 is provided with a first swing rotating shaft 32, a transmission 33 is arranged below the first swing rotating shaft 32, and the input side of the transmission 33 is provided with a universal motor 36.

As shown in fig. 9 and 10, the two ends of the sorting machine frame 42 are respectively provided with a sorting rotating shaft 37, the sorting rotating shaft 37 is sleeved with a sorting roller 45, the sorting roller 45 is provided with a sorting belt 44, the sorting machine frame 42 is symmetrically provided with a partition plate support 38 to the axial direction of the sorting belt 44, the partition plate support 38 is provided with a sorting barrier plate 39, one side of the sorting machine frame 42 is provided with a fixed plate-shifting support 40, the fixed plate-shifting support 40 is provided with a fixed plate-shifting 41, and the lower parts of the fixed plate-shifting 41 and the sorting belt 44 are provided with a right-angle fastener collecting basket 43.

As shown in fig. 11 and 12, the separating rotating shafts 46 are provided at two ends of the separating frame 54, the separating rotating shafts 46 are sleeved with the separating drums 55, the separating belts 47 are sleeved on the separating drums 55, the separating frame 54 is provided with the stepping motor 53, the stepping motor 53 is provided with the shifting plate shaft 52, the shifting plate shaft 52 is provided with the movable shifting plate 51, the separating frame 54 is provided with the external connecting block support plate 77, the external connecting block support plate 77 is provided with the external connecting block 75, the rotating fastener collecting basket 49 is provided below the separating belts 47 aligned with the movable shifting plate 51, and the butt fastener collecting basket 50 is provided below the tail end of the separating belts 47.

As shown in fig. 13 and 14, an insulating housing 66 is disposed on the separating belt 47, a conductive plate 57 capable of sliding back and forth is disposed in the insulating housing 66, a spring 67 is disposed between the conductive plate 57 and the insulating housing 66, a force-bearing plate 56 is fixedly disposed on the conductive plate 57, a first left conductive joint 65 and a first right conductive joint 58 are symmetrically disposed on the inner side of the insulating housing 66, a second left conductive joint 64 and a second right conductive joint 59 are symmetrically disposed on the inner side of the insulating housing 66 under the first left conductive joint 65 and the first right conductive joint 58, a lower conductive circuit 61 is disposed under the first right conductive joint 58, an upper conductive circuit 60 is disposed under the second right conductive joint 59, an upper conductive joint 63 is disposed on the upper conductive circuit 60, a lower conductive joint 62 of the lower conductive circuit 61, and external contact surfaces of the lower upper conductive joint 63 and the conductive joint 62 are flush with the side of the separating belt 47.

As shown in fig. 15, an upper sliding groove 70 is formed in the external block 75, an upper conductive slider 68 which slides back and forth is arranged in the upper sliding groove 70, an upper spring 71 is arranged between the upper conductive slider 68 and the upper sliding groove 70, a conductive upper outer conductive path 69 is arranged in the external block 75, the upper outer conductive path 69 is always abutted against the upper conductive slider 68, the upper conductive slider 68 is always abutted against the upper conductive connector 63, a lower sliding groove 72 is formed in the external block 75, a conductive lower conductive slider 76 which slides back and forth is arranged in the lower sliding groove 72, a lower spring 73 is arranged between the lower conductive slider 76 and the lower sliding groove 72, a conductive lower outer conductive path 74 is arranged in the external block 75, the lower outer conductive path 74 is always abutted against the lower conductive slider 76, and the lower conductive slider 76 is always abutted against the lower conductive connector 62.

In the initial position, the spring 67 ejects the conductive plate 57 and the stress plate 56 out of the insulating housing 66, the upper spring 71 and the lower spring 73 respectively eject the upper conductive slider 68 and the lower conductive slider 74 out of the upper chute 70 and the lower chute 72 respectively, and the upper conductive slider 68 and the lower conductive slider 74 abut against the upper conductive contact 63 and the lower conductive contact 62 or the side surface of the separation belt 47 respectively.

The method for sorting the scaffold fasteners for the building comprises the following specific steps:

the first step is as follows: blocking the interlayer row fasteners. Three kinds of scaffold fasteners are placed on the blocking belt 10 and sequentially pass through the limiting row side of the blocking plate groups 14, only one fastener can pass through the gaps between the blocking plate groups 14, when the fastener reaches the position of the fastener gasket 18, the air cylinder controller starts the telescopic air cylinder 15 to advance the stop block 17 to clamp the fastener, after 1-2s, the telescopic air cylinder 15 retracts to the recovery stop block 17, the fastener continues to advance, the process is repeated, and finally the fastener is enabled to advance singly and at intervals.

The second step is that: the fastener is shaken down. The fastener is brought to the swing working plate 20 through the blocking belt 10, the universal motor 36 drives the first swing rotating shaft 32 to rotate, the first swing rotating shaft 32 drives the first swing rod 31 to start rotating, the first swing rod 31 drives the second swing rotating shaft 30 to rotate, the second swing rotating shaft 30 drives the second swing rod 35 to start swinging, the second swing rod 35 drives the third swing rotating shaft 27 to realize reciprocating swinging in the zigzag chute 34 in the chute plate 24, and then the swing working plate 20 is driven to start reciprocating swinging. In the reciprocating swing of the swing working plate 20, the rotating fastener or the butt fastener, which may be in the upright state, may be in the lying state due to unstable center of gravity.

The third step: and sorting the right-angle fasteners. The fasteners are swung and shaken down to reach the sorting belt 44 through the swing working plate 20, the fasteners are returned to the central line position of the sorting belt 44 again through the sorting blocking plate 39, and since the rotating fasteners or the butt fasteners in the vertical state are shaken down, only the vertical height of the right-angle fasteners is the highest, and the right-angle fasteners are sequentially shifted into the right-angle fastener collecting basket 43 by the fixed shifting plate 41.

The fourth step: the rotating fastener and the butt fastener are separated. The rotating and abutting fastener members reach the separating belt 47 through the sorting belt 44, and since the rotating and abutting fastener members have the same weight but different contact areas of the bottom surfaces, the pressure per unit area is different. Therefore, when the fastener is pressed and contacted with the stress plate 56, the stress plate 56 drives the conductive plate 57 to move downwards, different conductive joints are connected according to different unit pressures, so that different loops are connected, the upper conductive sliding block 68 and the lower conductive sliding block 76 are respectively contacted with the upper conductive joint 63 and the lower conductive joint 62, and a program is sent to a controller of the stepping motor 53 according to the connection condition, so that the rotation condition of the movable shifting plate 51 is judged, and the separation of the rotary fastener and the butt fastener is realized.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A scaffold fastener sorting method for buildings is matched with a scaffold fastener sorting system, the scaffold fastener sorting device comprises a separation lower rack (12), separation rotating shafts (11) are arranged at two ends of the separation lower rack (12) respectively, a separation roller (19) is sleeved on each separation rotating shaft (11), a separation belt (10) is arranged on each separation roller (19), a separation mechanism is arranged on each separation lower rack (12), a swing working plate (20) is abutted to each separation belt (10), a supporting mechanism and a swing power mechanism are arranged below each swing working plate (20), the swing working plates (20) are sequentially abutted to sorting belts (44), sorting racks (42) are arranged at the lower parts of the sorting belts (44), sorting mechanisms are arranged at the upper parts of the sorting belts (44), and the sorting belts (44) are sequentially abutted to separating belts (47), the separating machine is characterized in that a separating rack (54) is arranged on the lower portion of the separating belt (47), a separating mechanism is arranged on the upper portion of the separating belt (47), and force measuring buttons (48) are uniformly arranged on the separating belt.

2. The method for sorting scaffold fasteners for construction according to claim 1, wherein: the barrier belt conveyor is characterized in that a barrier upper frame (13) is symmetrically arranged on a barrier lower frame (12), the barrier upper frame (13) is arranged on the upper portion of a barrier belt (10) and is sequentially provided with a barrier plate group (14) and a telescopic cylinder (15), the telescopic cylinder (15) is provided with a telescopic rod (16) in the direction of the central line of the barrier belt (10), a stop block (17) is arranged on the telescopic rod (16), and a gasket (18) is arranged on the stop block (17).

3. The method for sorting scaffold fasteners for construction according to claim 1, wherein: swing branch pole (21) is equipped with to the symmetry under swing working plate (20), spacing board (23) is gone up to swing branch pole (21) has been set, the geometric center of spacing board (23) has set firmly fixed axle sleeve (28) on, spacing board (25) have set firmly down on fixed axle sleeve (28), spacing piece (26) are down equipped with to fixed axle sleeve (28) lower extreme, it accompanies chute board (24) to go up between spacing board (23) and spacing board (25) down, chute board (24) have swing frame (29), it has zigzag spout (34) to open on chute board (24), fixed axle sleeve (28) endotheca has rotatable third swing pivot (27), spacing piece (22) is gone up to third swing pivot (27) upper end, third swing pivot (27) pass zigzag spout (34), third swing pivot (27) be in spacing board (23) with be equipped with rotatable second between spacing piece (22) on last spacing piece (22) Swinging arms (35), the terminal cover of second swinging arms (35) has rotatable second swing pivot (30), the cover has rotatable first swinging arms (31) on second swing pivot (30), the end of first swinging arms (31) is equipped with first swing pivot (32), first swing pivot (32) have derailleur (33), the input side of derailleur (33) is equipped with universal motor (36).

4. The method for sorting scaffold fasteners for construction according to claim 1, wherein: sorting frame (42) both ends are equipped with letter sorting pivot (37) respectively, the cover has letter sorting cylinder (45) on letter sorting pivot (37), be equipped with letter sorting belt (44) on letter sorting cylinder (45), letter sorting frame (42) to letter sorting belt (44) axis direction symmetry is equipped with baffle support (38), be equipped with letter sorting baffler (39) on baffle support (38), one side of letter sorting frame (42) is equipped with fixedly dials board support (40), fixedly dial and be equipped with on board support (40) and fixedly dial board (41), fixedly dial board (41) with the below of letter sorting belt (44) is equipped with right angle fastener and collects basket (43).

5. The method for sorting scaffold fasteners for construction according to claim 1, wherein: the both ends of separation frame (54) are equipped with separation pivot (46), the cover has separation cylinder (55) on separation pivot (46), the cover has separation belt (47) on separation cylinder (55), be equipped with step motor (53) on separation frame (54), be equipped with on step motor (53) and dial board axle (52), it dials board (51) to be equipped with the activity on board axle (52), separation frame (54) are equipped with outer extension plate (77), be equipped with outer extension block (75) on outer extension plate (77), separation belt (47) with the activity is dialled the below that board (51) were alignd and is equipped with rotatory fastener and collects basket (49), the terminal below of separation belt (47) is equipped with butt joint fastener and collects basket (50).

6. The method for sorting scaffold fasteners for construction according to claim 1, wherein: be equipped with insulating housing (66) on separation belt (47), be equipped with in insulating housing (66) can reciprocating sliding's conducting plate (57), conducting plate (57) with be equipped with spring (67) between insulating housing (66), atress board (56) have been set firmly on conducting plate (57), insulating housing (66) inboard symmetry is equipped with first left conductive joint (65) and first right conductive joint (58), insulating housing (66) inboard is in first left conductive joint (65) and first right conductive joint (58) lower part symmetry is equipped with left conductive joint of second (64) and right conductive joint of second (59), first right conductive joint (58) have connect down conductive circuit (61) down, conductive joint of second (59) have connect up circuit (60) down, it has connect up conductive joint (63) to go up conductive joint (60), and the lower conductive joint (62) of the lower conductive circuit (61), and the outer contact surfaces of the lower upper conductive joint (63) and the conductive joint (62) are flush with the side edge of the separation belt (47).

7. The method for sorting scaffold fasteners for buildings according to claim 5, wherein: an upper sliding groove (70) is formed in the outer connecting block (75), an upper conductive sliding block (68) which slides in a reciprocating manner is arranged in the upper sliding groove (70), an upper spring (71) is arranged between the upper conductive sliding block (68) and the upper sliding groove (70), a conductive upper outer conductive circuit (69) is arranged in the outer connecting block (75), the upper outer conductive circuit (69) is always abutted against the upper conductive sliding block (68), the upper conductive sliding block (68) is always abutted against the upper conductive connector (63), a lower sliding groove (72) is formed in the outer connecting block (75), a lower conductive sliding block (76) which slides in a reciprocating manner is arranged in the lower sliding groove (72), a lower spring (73) is arranged between the lower conductive sliding block (76) and the lower sliding groove (72), a conductive lower outer conductive circuit (74) is arranged in the outer connecting block (75), and the lower outer conductive sliding block (76) is always abutted against the lower conductive sliding block (76), the lower conductive sliding block (76) is always abutted with the lower conductive joint (62).