CN113550310B

CN113550310B - Pile driver for building engineering

Info

Publication number: CN113550310B
Application number: CN202111106803.1A
Authority: CN
Inventors: 郑宝娣
Original assignee: Leimai Building Materials Jiangsu Co ltd
Current assignee: Leimai Building Materials Jiangsu Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2021-12-14
Anticipated expiration: 2041-09-22
Also published as: CN113550310A

Abstract

The invention provides a pile driver for constructional engineering, which comprises a primary motor, a transmission shaft, a cross beam, a support column, a bottom device, a telescopic device, a pile driving device and a gear device, wherein the primary motor is connected with the transmission shaft; the primary motor is arranged at the upper end of the equipment, and a cross beam is connected below the primary motor; support columns are arranged below two ends of the cross beam and are distributed in bilateral symmetry; the bottom device is arranged below the supporting column; the telescopic device is arranged below the motor and also arranged below the cross beam; one end of the transmission shaft is connected with the primary motor, and the other end of the transmission shaft is connected with the telescopic device; the piling device is arranged below the telescopic device and is connected with the telescopic device; the gear device is arranged on one side of the pile driving device and is arranged below the telescopic device; the invention adopts a bottom device, a telescopic device, a piling device, a gear device and the like; the problem of current pile driver stability can not be good, it is difficult that the drilling size changes, and wastes time and energy is solved to reduce artificial working strength, improved economic efficiency.

Description

Pile driver for building engineering

Technical Field

The invention relates to the field of pile drivers, in particular to a pile driver for constructional engineering.

Background

Since the ground building is built on the ground and the ground is subjected to a great pressure, the ground must have sufficient strength against the pressure, which is difficult to achieve, and therefore the ground bearing the building must be reinforced or the bearing way of the ground is improved, so that it is conceivable to pile the ground to transfer most of the weight of the building to a position deep below the ground through the pile, and since the ground bearing the position is much larger than the ground bearing capacity, the pile driver is needed.

At present, piles are required to be vertically driven into a soil body, the existing pile driver mostly belongs to large-scale machinery, the size is large, the stability is not good enough, the size of the pile hole is not well adjusted in time according to the size of the pile hole as required, time and labor are wasted, and resources are wasted.

Disclosure of Invention

The object of the present invention is to provide a pile driver for construction engineering which solves the problems of the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme:

a pile driver for constructional engineering comprises a primary motor, a transmission shaft, a cross beam, a support column, a bottom device, a telescopic device, a pile driving device and a gear device; the primary motor is arranged at the upper end of the equipment, and a cross beam is connected below the primary motor; support columns are arranged below two ends of the cross beam and are distributed in bilateral symmetry; the bottom device is arranged below the supporting column; the telescopic device is arranged below the motor and also arranged below the cross beam; one end of the transmission shaft is connected with the primary motor, and the other end of the transmission shaft is connected with the telescopic device; the piling device is arranged below the telescopic device and is connected with the telescopic device; the gear device is arranged on one side of the pile driving device and is arranged below the telescopic device.

The pile driver for the building engineering further comprises a coupler, wherein the coupler is arranged below the first-level motor and is connected with the cross beam.

The pile driver for the construction engineering further comprises a spring member and a base; the spring component is arranged below the supporting column; the base is disposed below the spring member.

The pile driver for the building engineering further comprises a primary connecting rod, a hydraulic expansion piece and a secondary connecting rod; the first-stage connecting rod is arranged below the cross beam and is connected with the transmission shaft; one end of the hydraulic telescopic device is connected with the first-stage connecting rod, and the other end of the hydraulic telescopic device is connected with the second-stage connecting rod.

The pile driver for the construction engineering further comprises a drill body, an engagement port and a drill bit member; the drill body is arranged below the secondary connecting rod and is connected with the secondary connecting rod; the engagement ports are arranged on two sides of the drill body; the drill member is disposed below the drill body, and the drill member and the drill body are connected.

In the pile driver for construction engineering, the drill member comprises a fan blade assembly, a secondary rotating shaft, a drill and an induction block; the fan blade assembly is arranged below the drill body and connected with the drill body; one end of the secondary rotating shaft is connected with the drill body, and the other end of the secondary rotating shaft is connected with the drill bit; the induction block is arranged at the lower end of the drill bit.

In the pile driver for the building engineering, the fan blade assembly comprises the fan blade block, the three-level buckle and the clamping groove; the fan blade block is arranged above the drill bit; the draw-in groove sets up inside the flabellum piece, and tertiary buckle sets up in the drill bit top.

The pile driver for the building engineering further comprises a fixing rod, a primary driving wheel, a secondary driving wheel, a primary rotating shaft, a primary driven wheel, a secondary driven wheel and a secondary motor; one end of the fixed rod is connected with the second-level connecting rod, and the other end of the fixed rod is connected with the first-level rotating shaft; the primary driving wheel is arranged on the primary rotating shaft, and the secondary driving shaft is arranged on one side of the primary driving shaft; the secondary motor is arranged at one end of the primary rotating shaft; the primary driving wheel is meshed with the primary driven wheel; the secondary driving wheel is meshed with the secondary driven wheel.

The pile driver for the constructional engineering further comprises a fixing block, wherein the fixing block is arranged on one side of the supporting column and is fixedly connected with the supporting column.

The pile driver for the constructional engineering further comprises grooves, and the grooves are arranged in the fixing blocks and are symmetrically arranged.

The pile driver for the building engineering further comprises a connecting device, wherein the connecting device comprises a primary buckle, a connecting block, a secondary buckle, a circular ring and a high-pressure spring; the first-stage buckle is connected with the groove; one end connecting block is connected with the first-level buckle, and the other end connecting block is connected with the second-level connecting rod; one end of the circular ring is connected with the secondary buckle, and the other end of the circular ring is connected with the high-pressure spring; and the secondary buckle is connected with the connecting block.

The pile driver for the construction engineering further comprises a control device, wherein the control device comprises a control assembly, a sensing assembly and a processing group price; the sensing assembly comprises a hydraulic sliding sensor, a gear rotation sensor and a piling range sensor; one end of the control component extends into the equipment, the other end of the control component is connected with the sensing component, and one end of the sensing component is connected with the processing component; the sensing assembly is respectively and independently connected with the hydraulic sliding sensor, the gear rotation sensor and the piling range sensor.

In the technical scheme, the pile driver for the building engineering provided by the invention adopts the bottom device, the telescopic device, the pile driving device, the gear device and the like; the problem of current pile driver stability can not be good, the drilling size change is difficult, and wastes time and energy is solved, the stability of pile driver has effectively been improved, and the drilling size can be adjusted at will to reduce artificial working strength, improved economic efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

Fig. 1 is a model view of a pile driver for construction engineering provided by the embodiment;

FIG. 2 is a schematic structural diagram of a gear device in the pile driver for construction engineering provided by the embodiment;

fig. 3 is a schematic structural diagram of a pile driver a for construction engineering according to the embodiment;

fig. 4 is a schematic structural diagram of a control device in the pile driver for construction engineering provided by the embodiment;

fig. 5 is a front view of a drill bit mechanism in the pile driver for construction engineering provided by the embodiment;

fig. 6 is a top view of a drill bit mechanism in the pile driver for construction engineering provided by the embodiment;

fig. 7 is a cross-sectional view of the drill bit mechanism in the pile driver for construction engineering provided by the embodiment.

Description of reference numerals: 1. a first-stage motor; 2. a drive shaft; 3. a cross beam; 4. a support pillar; 5. a bottom device; 6. a coupling; 7. a telescoping device; 8. a pile driving device; 9. a gear arrangement; 10, fixing blocks; 11. a groove; 12. a connecting device; 13. a control device; 51. a spring member; 52. a base; 71. a primary connecting rod; 72. a hydraulic jack; 73. a secondary connecting rod; 81. a drill body; 82. an engagement port; 83. a drill bit member; 831. a fan blade assembly; 832. a secondary rotating shaft; 833. a drill bit; 834. an induction block; 8311. a fan blade block; 8312. a third-stage buckle; 8313. a card slot; 91. fixing the rod; 92. a primary driving wheel; 93. a secondary driving wheel; 94. a primary rotating shaft; 95. a primary driven wheel; 96. a secondary driven wheel; 97. a secondary motor; 121. a first-stage buckle; 122. connecting blocks; 123. secondary buckling; 124. a circular ring; 125. a high pressure spring; 131. a control component; 132. an inductive component; 133. processing the group price; 1321. a hydraulic slip sensor; 1322. a gear rotation sensor; 1323. pile driving range inductor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

For better understanding of the above technical solutions, the technical solutions of the present invention will be described in detail below with reference to the drawings and the detailed description of the present invention.

As shown in fig. 1 to 7, the pile driver for construction engineering provided by the invention comprises a primary motor 1, a transmission shaft 2, a cross beam 3, a support column 4, a bottom device 5, a telescopic device 7, a pile driving device 8 and a gear device 9; the primary motor 1 is arranged at the upper end of the equipment, and a cross beam 3 is connected below the primary motor 1; support columns 4 are arranged below two ends of the cross beam 3, and the support columns 4 are distributed in bilateral symmetry; the bottom device 5 is arranged below the support column 4; the telescopic device 7 is arranged below the motor and is also arranged below the cross beam 3; one end of the transmission shaft 2 is connected with the primary motor 1, and the other end is connected with the telescopic device 7; the piling device 8 is arranged below the telescopic device 7 and is connected with the telescopic device 7; the gear device 9 is arranged on one side of the piling device 8 and below the telescopic device 7; more specifically, the device further comprises a coupler 6, wherein the coupler 6 is arranged below the primary motor 1 and is connected with the cross beam 3; the base means 5 comprises a spring member 51 and a base 52; the spring member 51 is disposed below the support column 4; the base 52 is disposed below the spring member 51; the telescopic device 7 comprises a primary connecting rod 71, a hydraulic telescopic device 72 and a secondary connecting rod 73; the primary connecting rod 71 is arranged below the cross beam 3 and is connected with the transmission shaft 2; one end of the hydraulic expansion piece 72 is connected with the first-stage connecting rod 71, and the other end is connected with the second-stage connecting rod 73; the piling device 8 includes a drill body 81, an engagement port 82, and a drill bit member 83; the drill body 81 is arranged below the secondary connecting rod 73 and is connected with the secondary connecting rod 73; the engaging ports 82 are arranged on both sides of the drill body 81; the drill member 83 is disposed below the drill body 81, and the drill member 83 and the drill body 81 are connected.

The drill member 83 includes a fan blade assembly 831, a secondary rotational shaft 832, a drill 833 and a sensing mass 834; the fan blade assembly 831 is arranged below the drill body 81 and connected with the drill body 81; one end of the secondary rotating shaft 832 is connected with the drill body 81, and the other end is connected with the drill bit 833; the induction block 834 is arranged at the lower end of the drill bit 833; the fan blade assembly 831 includes a fan blade block 8311, a three-level buckle 8312 and a clamping groove 8313; the fan blade block 8311 is arranged above the drill bit 833; the clamp groove 8313 is arranged inside the fan blade block 8311, and the third-stage buckle 8312 is arranged above the drill bit 833; the gear device 9 comprises a fixing rod 91, a primary driving wheel 92, a secondary driving wheel 93, a primary rotating shaft 94, a primary driven wheel 95, a secondary driven wheel 96 and a secondary motor 97; one end of the fixing rod 91 is connected with the secondary connecting rod 73, and the other end is connected with the primary rotating shaft 94; the primary driving wheel 92 is arranged on the primary rotating shaft 94, and the secondary driving shaft is arranged on one side of the primary driving shaft; the secondary motor 97 is arranged at one end of the primary rotating shaft 94; the primary driving wheel 92 is meshed with the primary driven wheel 95; the secondary driving wheel 93 is meshed with the secondary driven wheel 96; the fixing block 10 is arranged on one side of the supporting column 4 and fixedly connected with the supporting column 4; the fixing block comprises a fixing block body 10 and is characterized by further comprising grooves 11, wherein the grooves 11 are arranged in the fixing block body 10 and are symmetrically arranged; the connecting device 12 comprises a primary buckle 121, a connecting block 122, a secondary buckle 123, a circular ring 124 and a high-pressure spring 125; the primary buckle 121 is connected with the groove 11; one end connecting block 122 is connected with the first-stage buckle 121, and the other end connecting block 122 is connected with the second-stage connecting rod 73; one end of the circular ring 124 is connected with the secondary buckle 123, and the other end is connected with the high-pressure spring 125; the secondary buckle 123 is connected with the connecting block 122; the device further comprises a control device 13, wherein the control device 13 comprises a control component 131, a sensing component 132 and a processing group price; sensing assembly 132 includes hydraulic slide sensor 1321, gear rotation sensor 1322, and piling range sensor 1323; one end of the control component 131 extends into the device, the other end is connected with the sensing component 132, and one end of the sensing component 132 is connected with the processing component 133; the sensing assembly 132 is separately connected to a hydraulic slide sensor 1321, a gear rotation sensor 1322 and a piling range sensor 1323, respectively.

In specific use, the pile driver is fixed at a specified position, then the control device 13 starts to control the operation of the equipment, at this time, the lower secondary rotating shaft 832 starts to rotate, then the drill bit 833 is driven to rotate, the upper telescopic device 7 and the gear device 9 also help pile driving to stretch, then if the diameters of the piles to be driven are different, the fan blade assemblies 831 in the lower drill bit member 83 are expanded to a certain size, and then the piles are driven on the ground.

Specifically, the pile driver for the building engineering provided by the invention adopts the bottom device 5, the telescopic device 7, the pile driving device 8, the gear device 9 and the like; the problem of current pile driver stability can not be good, the drilling size change is difficult, and wastes time and energy is solved, the stability of pile driver has effectively been improved, and the drilling size can be adjusted at will to reduce artificial working strength, improved economic efficiency.

As shown in fig. 1 and 4, in the present example, there is provided a pile driver for construction engineering, further, the control device 13 includes a control assembly 131, a sensing assembly 132 and a processing assembly; sensing assembly 132 includes hydraulic slide sensor 1321, gear rotation sensor 1322, and piling range sensor 1323; one end of the control component 131 extends into the device, the other end is connected with the sensing component 132, and one end of the sensing component 132 is connected with the processing component 133; the sensing assembly 132 is separately connected to the hydraulic sliding sensor 1321, the gear rotation sensor 1322 and the piling range sensor 1323, respectively; because the equipment is controlled by the control device 13 to operate, the equipment is more intelligent and more convenient; because the sensing component 132 is separately connected with several sensors, it is more convenient to directly control each device in the apparatus, for example, the hydraulic sliding sensor 1321 is responsible for monitoring the telescopic device 7, and when the telescopic device 7 is blocked, the operation is transmitted to the control component 131 through the sensing component 132, and the control component 131 correspondingly changes the telescopic device and then processes the telescopic device by the processing component 133; the gear rotation sensor 1322 is responsible for sensing the condition of the gear device 9, when the gear does not rotate or the secondary motor 97 goes wrong, the gear rotation sensor 1322 feeds back the condition to the sensing component 132 at the first time, then the sensing component 132 feeds back the condition to the control component 131, and then the control component 131 transmits a new command to the processing component 133 for further processing; because the lowermost end of the drill bit 833 is provided with the induction block 834, the induction block 834 is responsible for inducing the hardness and the like of the ground and feeding back to the control component 131, so that the rotating speed of the drill bit 833 and the pressure of the telescopic device 7 and the gear device 9 on the lower part can be increased; this ensures the integrity of the control of the device by the control device 13 and does not affect the device by any action that would otherwise affect it.

As shown in fig. 1 and 2, in the pile driver for construction engineering provided in this example, further, the gear device 9 includes a fixing rod 91, a primary driving wheel 92, a secondary driving wheel 93, a primary rotating shaft 94, a primary driven wheel 95, a secondary driven wheel 96 and a secondary motor 97; one end of the fixing rod 91 is connected with the secondary connecting rod 73, and the other end is connected with the primary rotating shaft 94; the primary driving wheel 92 is arranged on the primary rotating shaft 94, and the secondary driving shaft is arranged on one side of the primary driving shaft; the secondary motor 97 is arranged at one end of the primary rotating shaft 94; the primary driving wheel 92 is meshed with the primary driven wheel 95; the secondary driving wheel 93 is meshed with the secondary driven wheel 96; because the gear device 9 is controlled and started by the secondary motor 97, the primary driving wheel 92 and the secondary driving wheel 93 respectively drive the primary driven wheel 95 and the secondary driven wheel 96 to rotate, so that the engaging opening 82 on the piling device 8 can be engaged with the primary driven wheel 95 and the secondary driven wheel 96 to move; therefore, the piling device 8 can better help the lower part to pile, and can pile with double power from the telescopic device 7 and the gear device 9 with half the effort.

As shown in fig. 1 and 2, in the pile driver for construction engineering provided in this example, the connecting device 12 further includes a primary catch 121, a connecting block 122, a secondary catch 123, a ring 124, and a high-pressure spring 125; and the bottom means 5 comprises a spring member 51 and a base 52; the shock absorption of the equipment can be assisted from different positions by using the connecting device 12 and the spring member 51, and the stability of the equipment during operation can be further ensured, wherein the left-right symmetrical connecting device 12 is connected with the telescopic device 7 and the fixed block 10, and the high-pressure spring 125 is used for ensuring the stability of the equipment.

As shown in fig. 1, 5, 6 and 7, in the pile driver for construction work provided in this example, further, a drill member 83 is provided below the drill body 81, and the drill member 83 and the drill body 81 are connected; the drill member 83 includes a fan blade assembly 831, a secondary rotational shaft 832, a drill 833 and a sensing mass 834; the fan blade assembly 831 is arranged below the drill body 81 and connected with the drill body 81; one end of the secondary rotating shaft 832 is connected with the drill body 81, and the other end is connected with the drill bit 833; the induction block 834 is arranged at the lower end of the drill bit 833; the fan blade assembly 831 includes a fan blade block 8311, a three-level buckle 8312 and a clamping groove 8313; the fan blade block 8311 is arranged above the drill bit 833; the clamp groove 8313 is arranged inside the fan blade block 8311, and the third-stage buckle 8312 is arranged above the drill bit 833; the sensing block 834 in the drill member 83 is connected to the piling range sensor 1323, and then due to the existence of the piling range sensor 1323, when the piling device 8 piles the ground, the piling diameter transmitted from the control assembly 131 can directly control the piling range sensor 1323, because the lower fan blade assembly 831 can change due to the required piling diameter, and the presence of the three-stage buckle 8312 and the clamping groove 8313 in the fan blade assembly 831 can help the fan blade 8311 to separate and unfold to present six pieces; the diameter of the pile driver can be changed quickly to drive the pile according to the requirement; because the below exists independently, although drill bit member 83 and drill body 81 are connected, they are connected through second grade axis of rotation 832, drill bit member 83 of below conveniently takes off, also convenient change, when the flabellum subassembly 831 of below goes up too much earth, can conveniently take off and wash the change, and also easy to assemble, traditional pile driver is because whole pile driver device 8 is integrative, so inconvenient change pile driving diameter and washing change, and this equipment is because separate from top to bottom and lower drill bit 833 exists independently, and flabellum expansion and shrink can perfectly help building engineering obtain the size of the hole of driving a pile that needs in time, and can not be because of changing the device for this, manpower and material resources have been saved greatly, help people's better driving a pile.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pile driver for constructional engineering is characterized by comprising a primary motor (1), a transmission shaft (2), a cross beam (3), a support column (4), a bottom device (5), a telescopic device (7), a pile driving device (8) and a gear device (9); the primary motor (1) is arranged at the upper end of the equipment, and a cross beam (3) is connected below the primary motor (1); supporting columns (4) are arranged below two ends of the cross beam (3), and the supporting columns (4) are distributed in bilateral symmetry; the bottom device (5) is arranged below the supporting column (4); the telescopic device (7) is arranged below the motor and is also arranged below the cross beam (3); one end of the transmission shaft (2) is connected with the primary motor (1), and the other end is connected with the telescopic device (7); the piling device (8) is arranged below the telescopic device (7) and is connected with the telescopic device (7); the gear device (9) is arranged on one side of the piling device (8) and is arranged below the telescopic device (7); the device also comprises a control device (13), wherein the control device (13) comprises a control component (131), a sensing component (132) and a processing component (133); the sensing assembly (132) comprises a hydraulic sliding sensor (1321), a gear rotation sensor (1322) and a piling range sensor (1323); one end of the control component (131) extends into the equipment, the other end of the control component is connected with the sensing component (132), and one end of the sensing component (132) is connected with the processing component (133); the induction assembly (132) is respectively and independently connected with the hydraulic sliding inductor (1321), the gear rotation inductor (1322) and the piling range inductor (1323), the hydraulic pile driving device further comprises a coupler (6), the coupler (6) is arranged below the primary motor (1) and connected with the cross beam (3), and the bottom device (5) comprises a spring member (51) and a base (52); the spring member (51) is arranged below the support column (4); the base (52) is arranged below the spring component (51), and the telescopic device (7) comprises a primary connecting rod (71), a hydraulic telescopic device (72) and a secondary connecting rod (73); the primary connecting rod (71) is arranged below the cross beam (3) and is connected with the transmission shaft (2); one end of the hydraulic expansion piece (72) is connected with the primary connecting rod (71), the other end of the hydraulic expansion piece is connected with the secondary connecting rod (73), and the piling device (8) comprises a drill body (81), a meshing port (82) and a drill bit component (83); the drill body (81) is arranged below the secondary connecting rod (73) and is connected with the secondary connecting rod (73); the engaging openings (82) are arranged on two sides of the drill body (81); the drill bit component (83) is arranged below the drill body (81), the drill bit component (83) is connected with the drill body (81), and the gear device (9) comprises a fixing rod (91), a primary driving wheel (92), a secondary driving wheel (93), a primary rotating shaft (94), a primary driven wheel (95), a secondary driven wheel (96) and a secondary motor (97); one end of the fixed rod (91) is connected with the secondary connecting rod (73), and the other end is connected with the primary rotating shaft (94); the primary driving wheel (92) is arranged on the primary rotating shaft (94), and the secondary driving shaft is arranged on one side of the primary driving shaft; the secondary motor (97) is arranged at one end of the primary rotating shaft (94); the primary driving wheel (92) is meshed with the primary driven wheel (95); the secondary driving wheel (93) is meshed with the secondary driven wheel (96), the secondary driving wheel further comprises a fixing block (10), the fixing block (10) is arranged on one side of the supporting column (4) and is fixedly connected with the supporting column (4), the secondary driving wheel further comprises grooves (11), the grooves (11) are arranged in the fixing block (10) and are symmetrically arranged, the secondary driving wheel further comprises a connecting device (12), and the connecting device (12) comprises a primary buckle (121), a connecting block (122), a secondary buckle (123), a circular ring (124) and a high-pressure spring (125); the primary buckle (121) is connected with the groove (11); one end connecting block (122) is connected with the first-level buckle (121), and the other end connecting block (122) is connected with the second-level connecting rod (73); one end of the circular ring (124) is connected with the secondary buckle (123), and the other end is connected with the high-pressure spring (125); and the secondary buckle (123) is connected with the connecting block (122).