A paper scooping trough for conveniently stirring paper pulp

Abstract

The invention discloses a paper scooping trough for conveniently stirring paper pulp, belonging to the technical field of paper scooping devices. A paper scooping trough for conveniently stirring paper pulp comprises a paper scooping trough body, a driving motor is installed inside one side of the paper scooping trough body, a hot water tank is arranged at the upper end of the driving motor, a constant temperature electric heating pipe is installed inside the hot water tank, a U-shaped connecting rod is installed at the upper end of the paper scooping trough body, a first fixing component is installed on one side of the U-shaped connecting rod, and a second fixing component is installed on the other side of the U-shaped connecting rod, and a frame can be fixed to the upper end of the paper scooping trough through the first fixing component and the second fixing component, so as to avoid the situation that one person cannot perform paper scooping operation due to the large volume of the frame, so as to achieve the goal of allowing one person to perform paper scooping operation in the paper scooping trough, avoiding the situation that if one person is physically unwell, another person cannot perform paper scooping operation, thereby avoiding the situation that the output of rice paper is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of paper scooping devices, and more particularly to a paper scooping trough for conveniently stirring paper pulp. Background Art

[0002] Xuan paper is a unique Chinese handicraft with the characteristics of being tough, smooth like jade, resistant to insects and decay, and having ever-changing ink tones. It enjoys the reputation of "millennium-long paper". The production process of Xuan paper mainly includes material preparation, pulping, paper scooping, board pressing, baking, paper cutting and other processes. Among them, the skin pulp and straw pulp with high concentration obtained after bleaching and washing are proportioned to the required concentration and put into the paper scooping trough for paper scooping. In the traditional manual papermaking process, in order to make the pulp slurry in the paper scooping trough evenly dispersed in the water, so as to facilitate paper scooping, the pulp in the paper scooping trough needs to be stirred regularly. However, the stirring and paper scooping operations are carried out in the paper scooping trough where the pulp is stirred, which can avoid the need for manual regular stirring of the pulp in the paper scooping trough.

[0003] At present, the paper scooping operation is carried out in a paper scooping trough for stirring paper pulp. Because a frame is needed for the paper scooping operation in the paper pulp, and the frame is too large to allow one person to perform the paper scooping operation, two or more people are basically required to perform the paper scooping operation in the paper scooping trough for stirring paper pulp, and two people cooperate in the paper scooping operation in a single trough, and only the paper output of a single trough is produced every day. At the same time, it is difficult to ensure that the two paper scooping people are in good physical condition every day. If one person is unwell, the other person will be unable to perform the paper scooping operation, thereby reducing the output of Xuan paper. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The object of the present invention is to provide a paper scooping trough for conveniently stirring paper pulp, so as to solve the problems raised in the above background technology:

[0006] At present, the paper scooping operation is carried out in a paper scooping trough for stirring paper pulp. Because a frame is needed for the paper scooping operation in the paper pulp, and the frame is too large to allow one person to perform the paper scooping operation, two or more people are basically required to perform the paper scooping operation in the paper scooping trough for stirring paper pulp, and two people cooperate in the paper scooping operation in a single trough, and only the paper output of a single trough is produced every day. At the same time, it is difficult to ensure that the two paper scooping people are in good physical condition every day. If one person is unwell, the other person will be unable to perform the paper scooping operation, thereby reducing the output of Xuan paper.

[0007] 2. Technical solution

[0008] A paper scooping trough for conveniently stirring paper pulp comprises a paper scooping trough body, a driving motor is installed inside one side of the paper scooping trough body, a hot water tank is arranged at the upper end of the driving motor, a constant temperature electric heating pipe is installed inside the hot water tank, a U-shaped connecting rod is installed at the upper end of the paper scooping trough body, a first fixing component is installed on one side of the U-shaped connecting rod, and a second fixing component is installed on the other side of the U-shaped connecting rod, a frame is installed on one side of the second fixing component, a curtain bed is installed inside the frame, a paper curtain is connected to the upper end of the curtain bed, and fixing belts are fixedly connected to the two ends of the outer side of the curtain bed.

[0009] Preferably, a first spiral stirring roller is installed inside the paper scooping trough, a second spiral stirring roller is installed on one side of the first spiral stirring roller, a third spiral stirring roller is installed on one side of the second spiral stirring roller, a fourth spiral stirring roller is installed on one side of the third spiral stirring roller, and a fixing strip is fixedly connected to the outer surface of one end of the paper scooping trough, a fixing buckle is installed on the upper end of the fixing strip, the fixing buckle is fixedly connected to the outer surface of the frame, and a handle is installed on the upper end of the fixing buckle, and the handle is fixedly connected to the outer surface of the curtain bed.

[0010] Preferably, a first limit block is fixedly connected to the upper end of one side of the curtain bed, and a second limit block is fixedly connected to the upper end of the other side of the curtain bed, a first limit assembly is installed on one side of the second limit block, and a second limit assembly is installed on one side of the first limit assembly.

[0011] Preferably, the first fixing assembly includes a first cylindrical connecting block, one side of the first cylindrical connecting block is fixedly connected to a first connecting hook, one side of the first connecting hook is connected to a first fixing ring, one side of the first fixing ring is installed with a connecting rope, one side of the connecting rope is connected to a second fixing ring, one side of the second fixing ring is connected to a second connecting hook, one side of the second connecting hook is fixedly connected to a second cylindrical connecting block, and the first cylindrical connecting block is connected to the first connecting hook by passing through a U-shaped connecting rod.

[0012] Preferably, the first limiting assembly includes a rectangular limiting block, one side of the rectangular limiting block is fixedly connected to the third cylindrical connecting block, a spring is installed on the outer side of the third cylindrical connecting block, one side of the spring is connected to the rectangular connecting block, and a plug is installed on the upper end of the rectangular connecting block.

[0013] Preferably, a guide hole matching the third cylindrical connecting block is provided inside the rectangular connecting block, a guide hole matching the plug is provided inside the rectangular connecting block, and the third cylindrical connecting block is movably connected to the plug through the guide hole in the rectangular connecting block.

[0014] Preferably, tracks are provided on the upper ends of both sides of the curtain bed, slide grooves are provided on the lower ends of both sides of the curtain bed, slide grooves are provided inside the upper ends of both sides of the frame, tracks are provided on the surfaces of the lower ends of both sides of the frame, the tracks on the upper ends of both sides of the curtain bed match the slide grooves on the upper ends of both sides of the frame, and the slide grooves on the lower ends of both sides of the curtain bed match the tracks on the lower ends of both sides of the frame.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1) When the paper scooping trough is in use, the first fixing component and the second fixing component can fix the frame at the upper end of the paper scooping trough, thereby avoiding the situation that one person cannot scoop paper due to the large size of the frame, so that one person can scoop paper in the paper scooping trough, avoiding the situation that if one person is unwell, another person will be unable to scoop paper, thereby avoiding the situation that the output of rice paper is reduced.

[0018] 2) When the paper scooping trough is in use, the curtain bed can move the slide grooves and slide rails in the curtain bed along the slide rails and slide grooves on the frame to the front through the slide rails and slide grooves provided on the frame, so that the curtain bed can be horizontally moved out, thereby avoiding the need to open the frame to take out the paper curtain after scooping the paper, and also avoiding the situation where the physical strength consumption is accelerated due to opening the frame and the total amount of paper output per day is reduced.

[0019] 3) When the paper scooping trough is used for a long time, the hands of the paper scooping staff will become cold. However, the constant temperature electric heating tube in the hot water tank can keep the water in the hot water tank at a constant temperature, thereby avoiding the situation in which the paper scooping staff soak in the pulp for a long time in the autumn and winter seasons and their hands become numb. This avoids the situation in which the paper scooping staff cannot scoop paper due to numb hands, thereby ensuring the output of Xuan paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the frame and curtain bed structure of the present invention;

[0023] Figure 4 It is a schematic structural diagram of the first fixing component of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the first limiting component of the present invention;

[0025] Figure 6 It is an overall schematic diagram of the paper curtain of the present invention after being retracted.

[0026] Explanation of the reference numerals in the figure: 1, paper scooping trough; 2, driving motor; 3, hot water trough; 4, constant temperature electric heating tube; 5, first spiral stirring roller; 6, second spiral stirring roller; 7, third spiral stirring roller; 8, fourth spiral stirring roller; 9, U-shaped connecting rod; 10, first fixing assembly; 1001, first cylindrical connecting block; 1002, first connecting hook; 1003, first fixing ring; 1004, connecting rope; 1005, second fixing ring; 1006, second connecting hook; 1007, second fixing ring; 1008, second fixing hook; 1009, second fixing ring; 1010, second fixing ring; 1011, second fixing ring; 1012, second fixing hook; 1013, first fixing ring; 1014, second fixing ring; 1015, second fixing ring; 1016, second fixing hook; 1017, first fixing ring; 1018, second fixing ring; 1019, second fixing ring; 1020, second fixing ring; 1021, second fixing ring; 1022, second fixing ring; 1023, second fixing ring; 1024, second fixing ring; 1025, second fixing ring; 1026, second fixing ring; 1027, second fixing ring; 1028, second fixing ring; 1029, second fixing ring; 1030, first fixing ring; 1031, first fixing ring; 1032, first fixing ring; 1033, first fixing ring; 1034, second fixing ring; 1035, second fixing ring; 1036, second fixing ring; 1037, second fixing ring; 1038, second fixing ring; 1039, second fixing ring; 1040, second fixing ring; 1041, second fixing ring; 1 7. Second cylindrical connecting block; 11. Second fixing assembly; 12. Fixing strip; 13. Frame; 14. Handle; 15. Fixing buckle; 16. Fixing belt; 17. Curtain bed; 18. Paper curtain; 19. First limiting block; 20. Second limiting assembly; 21. First limiting assembly; 2101. Rectangular limiting block; 2102. Third cylindrical connecting block; 2103. Spring; 2104. Rectangular connecting block; 2105. Plug; 22. Second limiting block; 23. Circular fixing buckle. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Embodiment 1:

[0031] Currently, paper scooping operation is performed in a paper scooping trough for stirring paper pulp. Because a frame is needed for the paper scooping operation in the pulp, and the frame is too large to allow one person to perform the paper scooping operation, two or more people are basically required to perform the paper scooping operation in the paper scooping trough for stirring paper pulp.

[0032] See also Figures 1 to 5 A paper scooping trough for conveniently stirring paper pulp comprises a paper scooping trough body 1, a driving motor 2 is installed inside one side of the paper scooping trough body 1, a hot water tank 3 is arranged on the upper end of the driving motor 2, and the hot water tank 3 can prevent the staff who scoop paper in winter from soaking in the paper pulp for a long time and causing their hands to lose sensation, a constant temperature electric heating pipe 4 is installed inside the hot water tank 3, and the constant temperature electric heating pipe 4 can keep the water in the hot water tank 3 at a constant temperature, and a U-shaped connecting rod 9 is installed on the upper end of the paper scooping trough body 1, and a U-shaped connecting rod 9 is installed on one side There is a first fixing component 10, and a second fixing component 11 is installed on the other side of the U-shaped connecting rod 9. The first fixing component 10 and the second fixing component 11 can fix the frame at the upper end of the paper scooping trough, thereby avoiding the situation that one person cannot perform the paper scooping operation due to the large size of the frame. A frame 13 is installed on one side of the second fixing component 11, and a curtain bed 17 is installed inside the frame 13. The upper end of the curtain bed 17 is connected to a paper curtain 18, and the outer ends of the curtain bed 17 are fixedly connected to fixing belts 16.

[0033] As a further solution of the present invention: a first spiral stirring roller 5 is installed inside the paper scooping trough body 1, a second spiral stirring roller 6 is installed on one side of the first spiral stirring roller 5, a third spiral stirring roller 7 is installed on one side of the second spiral stirring roller 6, and a fourth spiral stirring roller 8 is installed on one side of the third spiral stirring roller 7, and a fixing bar 12 is fixedly connected to the outer surface of one end of the paper scooping trough body 1, a fixing buckle 15 is installed on the upper end of the fixing bar 12, the fixing buckle 15 is fixedly connected to the outer surface of the frame body 13, and a handle 14 is installed on the upper end of the fixing buckle 15, and the handle 14 is fixedly connected to the outer surface of the curtain bed 17.

[0034] The use steps of the present invention are as follows: when performing a paper scooping operation in a paper scooping trough for stirring paper pulp, a staff member starts a driving motor 2 to drive the first spiral stirring roller 5, the second spiral stirring roller 6, the third spiral stirring roller 7 and the fourth spiral stirring roller 8 to rotate. As the four spiral stirring rollers rotate, the pulp in the paper scooping trough is stirred, so that the pulp slurry is evenly dispersed in the water, which is convenient for scooping paper. Since the first fixing component 10 and the second fixing component 11 fix the frame at the upper end of the paper scooping trough, it is avoided that a staff member cannot push the frame and thus cannot perform the paper scooping operation due to the excessive size of the frame. At this time, the staff member only needs to use the handle 14 to push the frame 13, so that the frame 13 enters the pulp with an inclined surface and shakes the frame 13 back and forth so that the pulp is evenly distributed on the surface of the paper curtain 18.

[0035] Embodiment 2:

[0036] In Example 1, it is mentioned that the paper curtain 18 needs to be fixed on the surface of the curtain bed 17. However, in order to fix the paper curtain 18, a flip-type frame 13 is needed to fix the curtain bed 17 and then fix the paper curtain 18. However, after the paper scooping is completed, the frame 13 needs to be opened to take out the paper curtain 18. At the same time, opening the frame 13 accelerates the consumption of physical strength and reduces the total amount of paper output per day.

[0037] See also Figures 1 to 5 , which is different from Example 1 in that a first limit block 19 is fixedly connected to the upper end of one side of the curtain bed 17, and a second limit block 22 is fixedly connected to the upper end of the other side of the curtain bed 17, a first limit assembly 21 is installed on one side of the second limit block 22, and a second limit assembly 20 is installed on one side of the first limit assembly 21.

[0038] As a further solution of the present invention: the first fixing component 10 includes a first cylindrical connecting block 1001, one side of the first cylindrical connecting block 1001 is fixedly connected to the first connecting hook 1002, one side of the first connecting hook 1002 is connected to the first fixing ring 1003, one side of the first fixing ring 1003 is installed with a connecting rope 1004, one side of the connecting rope 1004 is connected to the second fixing ring 1005, one side of the second fixing ring 1005 is connected to the second connecting hook 1006, one side of the second connecting hook 1006 is fixedly connected to the second cylindrical connecting block 1007, and the first cylindrical connecting block 1001 is connected to the first connecting hook 1002 by passing through the U-shaped connecting rod 9.

[0039] The use steps of the present invention are as follows: when the surface of the paper curtain 18 is evenly distributed with pulp, the staff needs to move the fixing buckle 15 installed on the outer surface of the frame 13 onto the fixing bar 12 so that the frame 13 stays on the paper scooping trough 1, and at the same time, the staff needs to unfasten the fixing belts 16 arranged on both sides of the handle 14, and pull the handle 14 to drive the curtain bed 17 to move along the slide rail and the slide groove arranged in the frame 13 to the outside of the paper scooping trough 1, until the bottom of the curtain bed 17 is adjacent to the first limit assembly 19 and the second limit assembly 22, and The plug 2105 in the first limit assembly 19 and the second limit assembly 22 is pressed to prevent the curtain bed 17 from moving into the paper scooping trough 1. At this time, the paper curtain 18 is taken out from the surface of the curtain bed 17, and the pulp of the paper curtain 18 is placed on the plate press, and then the paper curtain 18 is placed on the surface of the curtain bed 17. At the same time, these operations do not require the frame 13 to be opened to take out the paper curtain 18 when the paper curtain 18 is full of pulp. At the same time, it also avoids the situation where the physical strength consumption is accelerated due to opening the frame 13 and the total amount of paper output per day is reduced.

[0040] Embodiment 3:

[0041] When the paper scooping trough is used for a long time to scoop paper, the hands of the paper scooping staff will become cold, which will cause the hands of the paper scooping staff to become numb due to soaking in the pulp for a long time in the autumn and winter seasons. As a result, the paper scooping staff cannot scoop paper because their hands have no sensation. This problem is solved by the following solution.

[0042] See also Figures 1 to 5 The difference between the embodiments 1 and 2 is that the first limiting component 21 includes a rectangular limiting block 2101, one side of the rectangular limiting block 2101 is fixedly connected to the third cylindrical connecting block 2102, a spring 2103 is installed on the outer side of the third cylindrical connecting block 2102, one side of the spring 2103 is connected to a rectangular connecting block 2104, and a plug 2105 is installed on the upper end of the rectangular connecting block 2104.

[0043] As a further solution of the present invention: the interior of the rectangular connecting block 2104 is provided with a guide hole matching the third cylindrical connecting block 2102, and the interior of the rectangular connecting block 2104 is provided with a guide hole matching the plug 2105. The third cylindrical connecting block 2102 is movably connected to the plug 2105 through the guide hole in the rectangular connecting block 2104. When the third cylindrical connecting block 2102 and the plug 2105 are connected, the curtain bed 17 can be fixed, thereby preventing the curtain bed 17 from moving into the paper scooping trough body 1.

[0044] As a further solution of the present invention: tracks are provided on the upper ends of both sides of the curtain bed 17, slide grooves are provided on the lower ends of both sides of the curtain bed 17, slide grooves are provided inside the upper ends of both sides of the frame 13, and tracks are provided on the surfaces of the lower ends of both sides of the frame 13. The tracks on the upper ends of both sides of the curtain bed 17 are consistent with the slide grooves on the upper ends of both sides of the frame 13, and the slide grooves on the lower ends of both sides of the curtain bed 17 are consistent with the tracks on the lower ends of both sides of the frame 13, and the curtain bed 17 can be translated out to the outside of the paper scooping trough body 1 along the slide rails and tracks in the frame 13.

[0045] The use steps of the present invention are as follows: when the paper curtain 18 is placed on the surface of the curtain bed 17, the plugs 2105 in the first limiting assembly 19 and the second limiting assembly 22 are removed and the handle 14 is pushed to move toward the inside of the paper scooping trough 1, so that the curtain bed 17 moves toward the inside of the paper scooping trough 1 along the slide rails and slide grooves provided in the frame 13 until the frame 13 touches the first limiting block 19 and the second limiting block 22. At this time, the fixing belt 16 is sleeved on the circular fixing buckle 23 on the surface of the frame 13, so that the curtain bed 17 does not move toward the outside of the paper scooping trough 1. At this time, the handle 14 is pushed to move toward the inside of the paper scooping trough 1, and the frame 13 is driven to enter the pulp with an inclined surface, so as to continue the paper scooping operation. When the paper scooping operation is performed for a long time, the hands of the staff who scoops the paper will become cold. At this time, the hands of the staff need to be put into the hot water tank 3 in a constant temperature state to warm their hands, thereby avoiding the situation where the hands of the staff are unconscious, and also avoiding the phenomenon that the staff who scoops the paper cannot scoop the paper because their hands are unconscious.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A paper scooping trough for conveniently stirring paper pulp, comprising a paper scooping trough body (1), a driving motor (2) being installed inside one side of the paper scooping trough body (1), characterized in that: A hot water tank (3) is provided at the upper end of the driving motor (2), a constant temperature electric heating tube (4) is installed inside the hot water tank (3), a U-shaped connecting rod (9) is installed at the upper end of the paper scooping trough body (1), a first fixing component (10) is installed on one side of the U-shaped connecting rod (9), and a second fixing component (11) is installed on the other side of the U-shaped connecting rod (9), a frame (13) is installed on one side of the second fixing component (11), a curtain bed (17) is installed inside the frame (13), a paper curtain (18) is connected to the upper end of the curtain bed (17), and fixing belts (16) are fixedly connected to the outer ends of the curtain bed (17); A first spiral stirring roller (5) is installed inside the paper scooping trough (1), a second spiral stirring roller (6) is installed on one side of the first spiral stirring roller (5), a third spiral stirring roller (7) is installed on one side of the second spiral stirring roller (6), a fourth spiral stirring roller (8) is installed on one side of the third spiral stirring roller (7), and a fixing strip (12) is fixedly connected to the outer surface of one end of the paper scooping trough (1), a fixing buckle (15) is installed on the upper end of the fixing strip (12), and the fixing buckle (15) is fixedly connected to the outer surface of the frame (13), two circular fixing buckles (23) are installed on the upper end surface of one side of the frame (13), and a handle (14) is installed on the upper end of the fixing buckle (15), and the handle (14) is fixedly connected to the outer surface of the curtain bed (17); The first fixing assembly (10) comprises a first cylindrical connecting block (1001), one side of the first cylindrical connecting block (1001) is fixedly connected to a first connecting hook (1002), one side of the first connecting hook (1002) is connected to a first fixing ring (1003), one side of the first fixing ring (1003) is installed with a connecting rope (1004), one side of the connecting rope (1004) is connected to a second fixing ring (1005), one side of the second fixing ring (1005) is connected to a second connecting hook (1006), one side of the second connecting hook (1006) is fixedly connected to a second cylindrical connecting block (1007), and the first cylindrical connecting block (1001) is connected to the first connecting hook (1002) by passing through a U-shaped connecting rod (9); Tracks are arranged at the upper ends of both sides of the curtain bed (17), slide grooves are arranged at the lower ends of both sides of the curtain bed (17), slide grooves are arranged inside the upper ends of both sides of the frame (13), and tracks are arranged on the surfaces of the lower ends of both sides of the frame (13), the tracks at the upper ends of both sides of the curtain bed (17) match with the slide grooves at the upper ends of both sides of the frame (13), and the slide grooves at the lower ends of both sides of the curtain bed (17) match with the tracks at the lower ends of both sides of the frame (13).

2. A paper scooping trough for conveniently stirring paper pulp according to claim 1, characterized in that: A first limit block (19) is fixedly connected to an upper end of one side of the curtain bed (17), and a second limit block (22) is fixedly connected to an upper end of the other side of the curtain bed (17); a first limit assembly (21) is installed on one side of the second limit block (22), and a second limit assembly (20) is installed on one side of the first limit assembly (21).

3. A paper scooping trough for conveniently stirring paper pulp according to claim 2, characterized in that: The first limiting assembly (21) comprises a rectangular limiting block (2101), one side of the rectangular limiting block (2101) is fixedly connected to a third cylindrical connecting block (2102), a spring (2103) is installed on the outer side of the third cylindrical connecting block (2102), one side of the spring (2103) is connected to a rectangular connecting block (2104), and a plug (2105) is installed on the upper end of the rectangular connecting block (2104).

4. A paper scooping trough for conveniently stirring paper pulp according to claim 3, characterized in that: The rectangular connection block (2104) is provided with a guide hole matching the third cylindrical connection block (2102) inside, the rectangular connection block (2104) is provided with a guide hole matching the plug (2105) inside, and the third cylindrical connection block (2102) is movably connected to the plug (2105) via the guide hole in the rectangular connection block (2104).

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