Tree sprinkler for forestry engineering

Abstract

The invention provides a tree sprinkler for forestry engineering, and relates to the technical field of forestry tree sprinkling irrigation. One end of the main irrigation pipe is connected to the water outlet end of an external water pump, and an adjusting pipe is installed in the other end of the main irrigation pipe. A spray irrigation pipe is connected to the top surface of the adjusting pipe in a fastening manner, and a connecting and fastening assembly is mounted between the adjusting pipe and the spray irrigation pipe; a driving shaft of the motor penetrates through the top plate of the protection cover, and a clamping plate is connected to the driving shaft of the motor in a clamped mode. After a lantern ring is connected to the other end of a pulling plate through a shaft and a motor is started, a connecting clamping plate is driven to rotate through a driving shaft, a connecting rotating plate is driven to rotate through a connecting clamping shaft, an inner clamping block is limited by the clamping frame to slide, a pulling rod is driven to swing, and therefore a shifting plate is driven to swing, and reciprocating motion of the shifting plate is achieved. A certain area is emphatically irrigated, the irrigation efficiency is improved, and the problem that an existing forestry tree sprinkler is low in irrigation efficiency is solved.

Description

Technical Field

[0001] The invention relates to the technical field of forestry tree sprinkler irrigation, in particular to a tree sprinkler for forestry engineering. Background Art

[0002] As an important part of ecological environment protection and development, forestry engineering and its irrigation technology are directly related to the growth and survival rate of trees. Traditional irrigation methods such as flood irrigation and furrow irrigation have serious problems such as waste of water resources and uneven irrigation, and cannot meet the needs of modern forestry engineering for efficient, water-saving and precise irrigation. However, most of the existing forestry irrigation equipment on the market have the following problems:

[0003] Low irrigation efficiency: Irrigation equipment often uses a single irrigation method and cannot be dynamically adjusted according to the growth cycle and water demand characteristics of trees, resulting in low irrigation efficiency and serious waste of water resources;

[0004] Uneven irrigation: Due to design defects in irrigation equipment, it is often impossible to achieve uniform distribution of water resources, resulting in uneven growth of trees and affecting the overall survival rate;

[0005] The structural design is flawed: the sprinkler height of the irrigation equipment is uniform, which makes it difficult to irrigate trees of different heights, and it is difficult to adjust the sprinkler height after the trees grow. Summary of the invention

[0006] In view of this, the present invention provides a tree sprinkler for forestry engineering, which solves the problems of low irrigation efficiency, uneven irrigation and defective structural design of existing forestry tree sprinklers.

[0007] The present invention provides a purpose and function of a tree sprinkler for forestry engineering, which specifically includes: a main irrigation pipe; one end of the main irrigation pipe is connected to the water outlet end of an external water pump, and an adjusting pipe is installed inside the other end of the main irrigation pipe; the top surface of the adjusting pipe is fastened with the sprinkler pipe, a connecting ring is welded on the top surface of the adjusting pipe, and a connecting fastening assembly is installed between the adjusting pipe and the sprinkler pipe; a protective cover is fixedly welded on the top surface of the sprinkler pipe, and a connecting plate is welded on the bottom of the sprinkler pipe; a motor is installed on the bottom surface of the top plate of the protective cover, a connecting card plate is clamped on the outer side of the top of the protective cover, and a sprinkler switching mechanism is clamped on the top surface of the protective cover; the driving shaft of the motor passes through the top plate of the protective cover, the connecting card plate is clamped on the driving shaft of the motor, and the connecting card plate and The motor forms a driving part, and the inside of the connecting card plate is clamped with a connecting card shaft; the connecting card shaft is sleeved with a dial plate, and when the sprinkler switching mechanism is clamped to the top of the protective cover, the outer connecting card shaft is sleeved with a pull rod, the inner connecting card shaft is sleeved with a connecting rotating plate, and the inner connecting card shaft is disengaged from the dial plate; the sprinkler switching mechanism includes a clamping frame, an inner clamping block, a connecting rotating plate and a pull rod, the inner clamping frame is clamped with the inner clamping block, and the inner clamping block is rotatably clamped with the connecting rotating plate and the other end of the pull rod; the connecting and fastening assembly includes a rotating block, a pressure rod and an insertion rod, the rotating block is rotatably connected to the connecting ring through an axis, the pressure rod is clamped on the connecting plate, the insertion rod passes through the pressure rod and the connecting plate, and the pressure rod is vertically plugged into the rotating block, and the end of the insertion rod is threadedly connected with a screw.

[0008] Furthermore, a sprinkler port is provided at the top of the sprinkler pipe, and the top of the sprinkler port and the top surface of the sprinkler pipe are sealed.

[0009] Furthermore, a clamping plate is welded on the inner side of the clamping frame, the clamping plate is clamped in the outer clamping slot, a height compensation plate is padded between the pull rod and the connecting rotating plate, the connecting rotating plate and the pull rod are sleeved on the inner clamping block, and the other end of the pull rod is connected to the ring through a shaft.

[0010] Furthermore, a blocking cap is installed on the top of the outer connecting clamp shaft, and the blocking cap is clamped on the top surface of the pull rod.

[0011] Furthermore, an external clamping block is welded to the outside of the adjusting pipe, a socket is provided inside the external clamping block, the aperture of the socket is the same as that of the socket of the main pouring pipe, the external clamping block is clamped in the adjusting slide groove, a sealing groove is provided on the top surface of the connecting ring, a sealing ring is arranged inside the sealing groove, and a plug-in frame is plugged into the socket of the external clamping block, and the plug-in frame passes through the socket inside the main pouring pipe.

[0012] Furthermore, a connecting rod is fixed and vertically welded to the top surface of the rotating block, a threaded rod is arranged at the top end of the connecting rod, a gasket is sleeved on the outside of the threaded rod, and a pressing plate is arranged on the outside of the pressing rod.

[0013] Furthermore, an annular sliding groove is provided on the top surface of the protective cover, the bottom of the connecting clamping shaft is slidably clamped in the annular sliding groove, and an outer clamping groove is provided on the top surface of the protective cover.

[0014] Furthermore, the bottom of the paddle is lower than the sprinkler port, a clamping rod is provided on the inner side of the top surface of the paddle, the circular hole inside the clamping rod is clamped on the connecting clamping shaft, and a collar is provided on the inner end of the clamping rod, which is clamped on the driving shaft of the motor.

[0015] Furthermore, the main irrigation pipe is a right-angle structural pipe and a mounting base is installed on the outside of the right-angle bend, and the mounting base is connected to the ground through a screw. An adjustment groove is opened inside the vertical pipe body of the main irrigation pipe, and transverse and equally spaced sockets are opened on both sides of the adjustment groove and inside the main irrigation pipe.

[0016] Beneficial Effects

[0017] During use of the present invention, after the motor is started by the external control end, the ring is driven to rotate through the driving shaft, thereby driving the plate to rotate, and the water sprayed from the sprinkler port is evenly spread, ensuring balanced growth of trees and improving the survival rate;

[0018] The card-jointed frame is connected to the outer card slot, and the sleeve is connected to the other end of the pull plate through the shaft. After the motor is started, the connecting card plate is driven to rotate through the driving shaft, and the connecting rotating plate is driven to rotate through the connecting card shaft. The inner card block slides under the restriction of the card-jointed frame, and drives the pull rod to swing, thereby driving the swing plate to swing, realizing the reciprocating motion of the swing plate, focusing on spraying irrigation in a certain area, and improving irrigation efficiency.

[0019] In addition, the plug-in hole allows the plug-in frame to be inserted so that the height of the adjusting tube can be fixed, and the adjusting slide groove allows the adjusting tube to move freely when adjusting the height, so that it can be used for watering trees of different heights and can meet the sprinkler height adjustment requirements of tree growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a schematic structural diagram of the main irrigation pipe, the regulating pipe and the sprinkler pipe after being assembled in an embodiment of the present invention.

[0024] Figure 2 It is a schematic structural diagram of a plug-in rack according to an embodiment of the present invention.

[0025] Figure 3It is a schematic structural diagram of a connecting and fastening assembly according to an embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the position structure of the paddle when the card-joining frame is clipped to the top of the protective cover in an embodiment of the present invention.

[0027] Figure 5 It is a schematic structural diagram of a main irrigation pipe according to an embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the regulating tube according to an embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of the structure of a sprinkler pipe according to an embodiment of the present invention.

[0030] Figure 8 It is a structural schematic diagram of the sprinkler irrigation switching mechanism according to an embodiment of the present invention.

[0031] Fig. 9 An embodiment of the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0032] Fig.10 An embodiment of the present invention Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0033] Reference numerals list

[0034] 1. Main irrigation pipe; 101. Installation base; 102. Adjustment chute;

[0035] 2. Adjusting tube; 201. External clamping block; 202. Connecting ring; 2021. Sealing groove; 203. Plug-in rack;

[0036] 3. Sprinkler pipe; 301. Connecting plate; 302. Sprinkler port;

[0037] 4. driving member; 41. motor; 42. connecting card plate; 4201. connecting card shaft; 4202. blocking cap;

[0038] 5. Protective cover; 501. Annular slide groove; 502. External card slot;

[0039] 6. dial plate; 601. sleeve ring;

[0040] 7. Connecting and fastening assembly; 71. Rotating block; 7101. Connecting rod; 7102. Gasket; 72. Pressing rod; 7201. Pressing plate; 73. Inserting rod;

[0041] 8. Sprinkler switching mechanism; 81. Snap-on frame; 8101. Snap-on plate; 82. Internal clamping block; 83. Connecting rotating plate; 84. Pull rod; 801. Height compensation sheet;

[0042] 9. Tighten the screw. DETAILED DESCRIPTION

[0043] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0044] Example: Please refer to Figures 1 to 10 As shown:

[0045] The present invention provides a tree sprinkler for forestry engineering, comprising a main irrigation pipe 1; one end of the main irrigation pipe 1 is connected to the water outlet end of an external water pump, and an adjusting pipe 2 is installed inside the other end of the main irrigation pipe 1; the top surface of the adjusting pipe 2 is fastened with a sprinkler pipe 3, a connecting ring 202 is welded to the top surface of the adjusting pipe 2, and a connecting fastening assembly 7 is installed between the adjusting pipe 2 and the sprinkler pipe 3; a protective cover 5 is fixedly welded to the top surface of the sprinkler pipe 3, and a connecting plate 301 is welded to the bottom of the sprinkler pipe 3; a motor 41 is installed on the bottom surface of the top plate of the protective cover 5, a connecting clamping plate 42 is clamped on the outer side of the top of the protective cover 5, and a sprinkler switching mechanism 8 is clamped on the top surface of the protective cover 5; the driving shaft of the motor 41 passes through the top plate of the protective cover 5, the connecting clamping plate 42 is clamped on the driving shaft of the motor 41, the connecting clamping plate 42 and the motor 41 form a driving member 4, and the connecting clamping shaft 420 is clamped inside the connecting clamping plate 42 1; the connecting card shaft 4201 is sleeved with a dial plate 6. When the sprinkler switching mechanism 8 is clamped to the top of the protective cover 5, the outer connecting card shaft 4201 is sleeved with a pull rod 84, the inner connecting card shaft 4201 is sleeved with a connecting rotating plate 83, and the inner connecting card shaft 4201 is separated from the dial plate 6; the sprinkler switching mechanism 8 includes a clamping frame 81, an inner clamping block 82, a connecting rotating plate 83 and a pull rod 84. The inner clamping frame 81 is clamped with the inner clamping block 82. Block 82, the inner clamping block 82 is rotatably connected to the other end of the rotating plate 83 and the pull rod 84; the connecting and fastening assembly 7 includes a rotating block 71, a pressure rod 72 and an insertion rod 73, the rotating block 71 is rotatably connected to the connecting ring 202 through an axis, the pressure rod 72 is clamped on the connecting plate 301, the insertion rod 73 passes through the pressure rod 72 and the connecting plate 301, and the pressure rod 72 is vertically plugged into the rotating block 71, and the end of the insertion rod 73 is threadedly connected with a screw screw 9.

[0046] As attached Figure 2As shown, the bottom of the paddle plate 6 is lower than the sprinkler port 302, a clamping rod is provided on the inner side of the top surface of the paddle plate 6, the circular hole inside the clamping rod is clamped on the connecting clamping shaft 4201, and a collar 601 is provided on the inner end of the clamping rod, and the collar 601 is clamped on the driving shaft of the motor 41. After the motor 41 is started by the external control end, the collar 601 is driven to rotate through the driving shaft, thereby driving the paddle plate 6 to rotate, and the water sprayed from the sprinkler port 302 is evenly sprinkled. After the collar 601 is removed from the driving shaft of the motor 41, the clamping rod can be clamped on the connecting clamping shaft 4201 to realize swinging and stirring, so as to realize key sprinkling at a certain position, thereby achieving the effect of flexibly switching the sprinkler mode and position.

[0047] As attached Figure 1 As shown, the main pouring pipe 1 is a right-angle structural pipe and a mounting base 101 is installed on the outside of the right-angle bend. The mounting base 101 is connected to the ground through a screw. An adjusting groove 102 is opened inside the vertical pipe body of the main pouring pipe 1. Both sides of the adjusting groove 102 and the inside of the main pouring pipe 1 are provided with horizontal and equally spaced plug holes, through which the plug-in frame 203 can be inserted, so that the height of the adjusting pipe 2 can be fixed, and the adjusting groove 102 allows the adjusting pipe 2 to move freely when adjusting the height.

[0048] As attached Figure 7 As shown, a sprinkler port 302 is provided at the top of the sprinkler pipe 3, and the top of the sprinkler port 302 and the top surface of the sprinkler pipe 3 are sealed, thereby preventing water from entering the motor 41 inside the protective cover 5. The sprinkler port 302 is used to evenly spray the water inside the sprinkler pipe 3 to achieve tree sprinkler irrigation.

[0049] As attached Figure 4 and attached Figure 7 As shown, an annular groove 501 is provided on the top surface of the protective cover 5, and the bottom of the connecting shaft 4201 is slidably engaged in the annular groove 501. An external groove 502 is provided on the top surface of the protective cover 5. The protective cover 5 can be used to protect the motor 41, thereby providing a waterproof sealing space for installing the driving component 4. At the same time, the annular groove 501 is used to slide and limit the connecting shaft 4201, so that the bottom of the connecting shaft 4201 is supported, and the external groove 502 is used to fix the clamping frame 81.

[0050] As attached Figure 5 and attached Figure 6As shown, an external clamping block 201 is welded to the outside of the adjusting pipe 2, and a socket is provided inside the external clamping block 201, the aperture of which is the same as that of the socket of the main pouring pipe 1, the external clamping block 201 is clamped in the adjusting slide groove 102, and a sealing groove 2021 is provided on the top surface of the connecting ring 202, and a sealing ring is arranged inside the sealing groove 2021, and a plug-in frame 203 is plugged into the socket of the external clamping block 201, and the plug-in frame 203 passes through the socket inside the main pouring pipe 1, and the external clamping block 201 can be plugged into the adjusting slide groove 102 at a fixed height through the plug-in frame 203, the height of the adjusting pipe 2 installed in the main pouring pipe 1 can be quickly fixed, and the adjusting pipe 2 is lower than the pipe body part at the bottom of the adjusting slide groove 102, which can ensure the sealing between the adjusting pipe 1 and the main pouring pipe 1 to avoid water leakage, while achieving height adjustment.

[0051] As attached Figure 8 As shown, a clamping plate 8101 is welded on the inner side of the clamping frame 81, and the clamping plate 8101 is clamped in the outer clamping groove 502. A height compensation sheet 801 is padded between the pull rod 84 and the connecting rotating plate 83. The connecting rotating plate 83 and the pull rod 84 are sleeved on the inner clamping block 82, and the other end of the pull rod 84 is connected to the collar 601 through an axis. The height compensation sheet 801 is used to keep the connecting rotating plate 83 or the pull rod 84 in a horizontal state, and the rotation or swing of the connecting rotating plate 83 and the pull rod 84 is not affected. When the motor 41 is started, the connecting clamping plate 42 is driven to rotate through the driving shaft, and the connecting rotating plate 83 is driven to rotate through the connecting clamping shaft 4201. The inner clamping block 82 is restricted by the clamping frame 81 to slide, and the pull rod 84 is driven to swing, thereby driving the swing plate 6 to swing, realizing the reciprocating motion of the swing plate 6, and focusing on a certain area.

[0052] As attached Figure 8 As shown, a blocking cap 4202 is installed on the top of the outer connecting shaft 4201, and the blocking cap 4202 is clamped on the top surface of the pull rod 84. The blocking cap 4202 is used to prevent the pull rod 84 from being separated from the connecting shaft 4201, thereby ensuring the position of the components during the transmission process and ensuring continuous operation.

[0053] As attached Figure 3 , Attachment Fig. 9 and attached Fig.10 As shown, a connecting rod 7101 is fixed and vertically welded to the top surface of the rotating block 71, a threaded rod is arranged at the top end of the connecting rod 7101, a gasket 7102 is sleeved on the outside of the threaded rod, and a pressing plate 7201 is arranged on the outside of the pressing rod 72. After the screw rod 9 is rotated, the screw rod 9 can press the gasket 7102 downward through the threaded engagement, thereby pressing the pressing rod 72 downward until the connecting plate 301 is tightly fitted to the top surface of the connecting ring 202, thereby achieving a tight connection.

[0054] Specific usage and function of this embodiment: In the present invention, the end of the main irrigation pipe 1 is connected to the water outlet of the external water pump, the mounting base 101 is connected to the ground through a screw, the external clamping block 201 is fixedly inserted in the adjustment slide groove 102 through the plug-in frame 203, a sealing ring is placed inside the sealing groove 2021, and after the screw rod 9 is rotated, the screw rod 9 can press the gasket 7102 downward through the threaded engagement, thereby pressing the pressure rod 72 downward until the connecting plate 301 is tightly attached to the top surface of the connecting ring 202, thereby achieving a tight connection;

[0055] The card plate 8101 is carded in the outer card slot 502. After the motor 41 is started, the connecting card plate 42 is driven to rotate through the driving shaft, and the connecting rotating plate 83 is driven to rotate through the connecting card shaft 4201. The inner card block 82 slides under the restriction of the card frame 81, and drives the pull rod 84 to swing, thereby driving the swing plate 6 to swing, realizing the reciprocating motion of the swing plate 6, and focusing on a certain area.

[0056] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0057] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A tree sprinkler for forestry engineering, comprising a main irrigation pipe (1); characterized in that: One end of the main irrigation pipe (1) is connected to the water outlet of an external water pump, and an adjusting pipe (2) is installed inside the other end of the main irrigation pipe (1); the top surface of the adjusting pipe (2) is fastened with a sprinkler pipe (3), a connecting ring (202) is welded to the top surface of the adjusting pipe (2), and a connecting fastening assembly (7) is installed between the adjusting pipe (2) and the sprinkler pipe (3); a protective cover (5) is fixedly welded to the top surface of the sprinkler pipe (3), and a connecting plate (301) is welded to the bottom of the sprinkler pipe (3); the protective cover (5) A motor (41) is installed on the bottom surface of the top plate of the protective cover (5); a connecting card plate (42) is clamped on the outer side of the top of the protective cover (5); and a sprinkler switching mechanism (8) is clamped on the top surface of the protective cover (5); a driving shaft of the motor (41) passes through the top plate of the protective cover (5); a connecting card plate (42) is clamped on the driving shaft of the motor (41); the connecting card plate (42) and the motor (41) form a driving member (4); and a connecting card shaft (4201) is clamped inside the connecting card plate (42); and a connecting card shaft (4201) is sleeved on the connecting card shaft (4201). The sprinkler irrigation switching mechanism (8) is provided with a pull plate (6). When the sprinkler irrigation switching mechanism (8) is connected to the top of the protective cover (5), a pull rod (84) is sleeved on the outer connecting clamping shaft (4201), a connecting rotating plate (83) is sleeved on the inner connecting clamping shaft (4201), and the inner connecting clamping shaft (4201) is separated from the pull plate (6); the sprinkler irrigation switching mechanism (8) comprises a clamping frame (81), an inner clamping block (82), a connecting rotating plate (83) and a pull rod (84). The inner clamping block (82) is clamped inside the clamping frame (81), and the inner clamping block (83) is sleeved on the inner connecting clamping shaft (4201). 2) the other end of the rotating plate (83) and the pull rod (84) is rotatably connected on the upper side; the connecting and fastening assembly (7) includes a rotating block (71), a pressure rod (72) and an insertion rod (73), the rotating block (71) is rotatably connected to the connecting ring (202) through an axis, the pressure rod (72) is clamped on the connecting plate (301), the insertion rod (73) passes through the pressure rod (72) and the connecting plate (301), and the pressure rod (72) is vertically plugged into the rotating block (71), and the end of the insertion rod (73) is threadedly connected to a screw (9).

2. A tree sprinkler for forestry engineering as claimed in claim 1, characterized in that: The main irrigation pipe (1) is a right-angle structural pipe and a mounting base (101) is installed outside the right-angle bend. The mounting base (101) is connected to the ground through a screw. An adjustment slide groove (102) is opened inside the vertical pipe body of the main irrigation pipe (1). Both sides of the adjustment slide groove (102) and inside the main irrigation pipe (1) are provided with transverse and equally spaced plug holes.

3. A tree sprinkler for forestry engineering as claimed in claim 2, characterized in that: An external clamping block (201) is welded to the outside of the regulating pipe (2), a plug hole is provided inside the external clamping block (201), the diameter of the plug hole is the same as the plug hole of the main irrigation pipe (1), the external clamping block (201) is clamped in the regulating slide groove (102), a sealing groove (2021) is provided on the top surface of the connecting ring (202), a sealing ring is arranged inside the sealing groove (2021), and a plug-in frame (203) is plugged into the plug hole of the external clamping block (201), and the plug-in frame (203) passes through the plug hole inside the main irrigation pipe (1).

4. A tree sprinkler for forestry engineering as claimed in claim 1, characterized in that: The top of the irrigation pipe (3) is provided with an irrigation port (302), and the top of the irrigation port (302) and the top surface of the irrigation pipe (3) are sealed.

5. A tree sprinkler for forestry engineering as claimed in claim 1, characterized in that: A blocking cap (4202) is installed on the top of the outer connecting clamp shaft (4201), and the blocking cap (4202) is clamped on the top surface of the pull rod (84).

6. A tree sprinkler for forestry engineering as claimed in claim 5, characterized in that: The top surface of the protective cover (5) is provided with an annular sliding groove (501), the bottom of the connecting clamping shaft (4201) is slidably clamped in the annular sliding groove (501), and the top surface of the protective cover (5) is provided with an outer clamping groove (502).

7. A tree sprinkler for forestry engineering as claimed in claim 5, characterized in that: The bottom of the paddle (6) is lower than the sprinkler port (302), a clamping rod is provided on the inner side of the top surface of the paddle (6), a circular hole inside the clamping rod is clamped on the connecting clamping shaft (4201), and a collar (601) is provided on the inner end of the clamping rod, and the collar (601) is clamped on the driving shaft of the motor (41).

8. A tree sprinkler for forestry engineering as claimed in claim 1, characterized in that: A connecting rod (7101) is fixed and vertically welded to the top surface of the rotating block (71), a threaded rod is arranged at the top end of the connecting rod (7101), a gasket (7102) is sleeved on the outside of the threaded rod, and a pressing plate (7201) is arranged on the outside of the pressing rod (72).

9. A tree sprinkler for forestry engineering as claimed in claim 7, characterized in that: A clamping plate (8101) is welded on the inner side of the clamping frame (81), and the clamping plate (8101) is clamped in the outer clamping groove (502). A height compensation plate (801) is provided between the pull rod (84) and the connecting rotating plate (83). The connecting rotating plate (83) and the pull rod (84) are sleeved on the inner clamping block (82), and the other end of the pull rod (84) is connected to the collar (601) via a shaft.

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