CN115638203A

CN115638203A - Damping mechanism and body-building equipment

Info

Publication number: CN115638203A
Application number: CN202211202657.7A
Authority: CN
Inventors: 慎重; 陈秀林; 刘蓓能
Original assignee: Wanxun Technology Shenzhen Co ltd
Current assignee: Wanxun Technology Shenzhen Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-01-24

Abstract

The invention provides a damping mechanism and body-building equipment, wherein the damping mechanism comprises two fluid driving structures, a power push plate, a flow regulating valve, a transmission assembly, a first connecting piece and a second connecting piece which can move relatively, the power push plate is arranged between the two fluid driving structures at intervals, the two fluid driving structures are communicated through the flow regulating valve, the first connecting piece is connected to the power input end of the transmission assembly, the power push plate is connected to the power output end of the transmission assembly, and the transmission assembly is used for outputting the rotary motion of the first connecting piece into the linear motion of the power push plate. According to the damping mechanism and the body-building equipment provided by the invention, when the power push plate moves, fluid flows from one fluid driving structure to the other fluid driving structure through the flow regulating valve. The damping mechanism is simple, long in service life and free of irreversible structural deformation.

Description

Damping mechanism and body-building equipment

Technical Field

The invention belongs to the technical field of fitness equipment, and particularly relates to a damping mechanism and fitness equipment.

Background

With the continuous improvement of living standard, people pay more and more attention to the health of the body, especially in white-collar workers working in cities, and people sit for working in front of computers for a long time, so that the harm to the body is great. In order to exercise the body and relieve the troubles of shoulder and neck diseases, lumbar diseases and the like, various fitness equipment gradually appears.

The existing chest-developer, arm-developer, sit-up device, bird-flying device and other devices are all provided with damping mechanisms, and the damping mechanisms mostly adopt structures such as damping rotating shafts and springs. When the damping pivot is used for a long time, produce wearing and tearing easily, damping coefficient can reduce gradually moreover, and life is shorter, and structures such as spring warp easily, influence the exercise effect.

Disclosure of Invention

The embodiment of the invention aims to provide a damping mechanism and fitness equipment, and aims to solve the technical problem that the damping structure in the prior art is short in service life or easy to deform.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a damping mechanism, but includes two fluid drive structures, power push pedal, flow control valve, drive assembly and relative motion's first connecting piece and second connecting piece, two but the interval is equipped with between the fluid drive structure the power push pedal, and two the fluid drive structure passes through the flow control valve intercommunication, first connecting piece connect in drive assembly's power input end, the power push pedal connect in drive assembly's power take off end, the second connecting piece and two the stiff end fixed connection of fluid drive structure, drive assembly be used for with the rotary motion output of first connecting piece does the linear motion of power push pedal.

The invention also provides fitness equipment which comprises the damping mechanism, a first rod piece and a second rod piece, wherein the first rod piece is connected with the first connecting piece, and the second rod piece is connected with the second connecting piece.

The damping mechanism and the body-building equipment provided by the invention have the beneficial effects that: compared with the prior art, the damping mechanism has two fluid drive structures, and the power push pedal separates to be located between two fluid drive structures, and flow control valve intercommunication two fluid drive structures, when first connecting piece rotates for the second connecting piece, transmission assembly can turn into linear motion with the rotary motion of first connecting piece to make the power push pedal move. When the powered push plate moves, fluid flows from one of the fluid driven structures to the other fluid driven structure through the flow regulating valve, wherein one of the fluid driven structures increases in volume and the other fluid driven structure decreases in volume. The damping mechanism in the fitness equipment has long service life and cannot generate irreversible structural deformation like a spring.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.

Fig. 1 is a perspective structural view of a first damping mechanism provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a first damping mechanism provided in accordance with an embodiment of the present invention;

FIG. 3 is an exploded view of a first damping mechanism according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a first damping mechanism provided in accordance with an embodiment of the present invention;

fig. 5 is a perspective view of a first flow regulating valve according to an embodiment of the present invention;

FIG. 6 is a side view of the flow control valve of FIG. 5;

FIG. 7 is a partial block diagram of the flow control valve of FIG. 5 (the mounting base is not shown);

FIG. 8 is a cross-sectional view of a hose provided by an embodiment of the present invention;

fig. 9 is a perspective structural view of a second flow regulating valve provided in the embodiment of the present invention;

FIG. 10 is a cross-sectional view of the flow control valve of FIG. 9;

fig. 11 is a perspective structural view of the plug according to the embodiment of the present invention;

FIG. 12 is a front view of a third flow control valve provided in accordance with an embodiment of the present invention;

fig. 13 is an exploded view of a third flow control valve according to an embodiment of the present invention;

FIG. 14 is a perspective view of the flow control valve of FIG. 13 (one of the clamp plates is not shown);

fig. 15 is an exploded view of a fourth flow control valve according to an embodiment of the present invention;

FIG. 16 is a perspective view of the flow control valve of FIG. 15 (with one of the clamp plates not shown);

FIG. 17 is a perspective view of a first exercise apparatus according to an embodiment of the present invention;

fig. 18 is a perspective structural view of a handle structure according to an embodiment of the present invention;

fig. 19 is an exploded view of a handle structure provided in accordance with an embodiment of the present invention;

fig. 20 is a perspective view of a handle body according to an embodiment of the present invention;

FIG. 21 is a perspective view of a second exercise apparatus according to an embodiment of the present invention;

FIG. 22 is a perspective view of a third exercise apparatus according to an embodiment of the present invention;

FIG. 23 is a perspective view of the exercise base structure provided in the embodiments of the present invention;

figure 24 is an exploded view of the exercise base structure provided by an embodiment of the present invention;

figure 25 is a cross-sectional view of an exercise base structure provided in accordance with an embodiment of the present invention;

fig. 26 is a perspective view of a cover plate according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in 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 do not limit the invention.

Referring to fig. 1 to 3, the damping structure 100 includes two fluid driving structures 1, a power push plate 32, a flow rate adjusting valve 2, a transmission assembly 31, a first connecting member 33 and a second connecting member 34. The fluid driving structure 1 has a housing chamber, and the interior thereof is used for housing a fluid such as gas or liquid. The fluid driving structure 1 is driven by fluid to be stretched or compressed, the volume of the fluid driving structure 1 is increased when the fluid flows into the fluid driving structure 1, and the volume of the fluid driving structure 1 is decreased when the fluid flows out of the fluid driving structure 1.

The two fluid driving structures 1 are provided with a power push plate 32 at intervals, that is, one ends of the two fluid driving structures 1 are connected through the power push plate 32. The transmission assembly 31 is used for converting the rotary motion into the linear motion, a power input end of the transmission assembly 31 is connected with the first connecting piece 33, and a power output end of the transmission assembly 31 is connected with the power pushing plate 32, that is, the transmission assembly 31 can convert the rotary motion of the first connecting piece 33 into the linear motion of the power pushing plate 32. Further, the two fluid driving structures 1 are communicated through the flow rate adjustment valve 2, so that the fluid can flow between the two fluid driving structures 1.

When the first connecting member 33 rotates relative to the second connecting member 34, the transmission assembly 31 moves the power pushing plate 32, so that one of the fluid driving structures 1 is increased in volume and is in a stretching state, and the other fluid driving structure 1 is reduced in volume and is in a compressing state. Specifically, the power push plate 32 moves towards the first fluid driving structure 1, and the fluid in the first fluid driving structure 1 moves to the second fluid driving structure 1 through the flow regulating valve 2, so that the volume of the first fluid driving structure 1 is reduced and compressed, and the volume of the second fluid driving structure 1 is increased and stretched. The power push plate 32 moves towards the second fluid driving structure 1, and the fluid in the second fluid driving structure 1 moves to the first fluid driving structure 1 through the flow regulating valve 2, so that the volume of the second fluid driving structure 1 is reduced, the second fluid driving structure is compressed, and the volume of the first fluid driving structure 1 is increased, and the first fluid driving structure 1 is stretched. By changing the size of the passage of the flow rate adjustment valve 2, the amount of force required to drive the first link 33 to move can be adjusted. During the process of manually rotating the first connecting member 33, the fluid in one of the fluid driven structures 1 will enter the other fluid driven structure 1, and work needs to be done against the fluid resistance, so as to achieve the exercise effect.

The damping structure 100 in the above embodiment has two fluid driving structures 1, the power pushing plate 32 is spaced between the two fluid driving structures 1, the flow rate adjusting valve 2 communicates the two fluid driving structures 1, and when the first connecting member 33 rotates relative to the second connecting member 34, the transmission assembly 31 can convert the rotary motion of the first connecting member 33 into a linear motion, so as to move the power pushing plate 32. When the power push plate 32 moves, the fluid in the fluid driving structures 1 flows from one of the fluid driving structures 1 to the other fluid driving structure 1 through the flow regulating valve 2, wherein one of the fluid driving structures 1 is increased in volume, and the other fluid driving structure 1 is decreased. The exerciser can overcome the fluid resistance to do work by relatively moving the first connecting member 33 and the second connecting member 34, thereby achieving the purpose of exercising. The damping structure 100 has a long life and does not undergo irreversible structural deformation like a spring.

In one embodiment of the present invention, referring to fig. 2, the transmission assembly 31 includes a transmission screw 311 and a threaded sleeve 312, the threaded sleeve 312 is connected to the transmission screw 311 in a threaded manner, the transmission screw 311 is a power input end of the transmission assembly 31, and the threaded sleeve 312 is a power output end of the transmission assembly 31. Specifically, the first connecting member 33 is fixedly connected to the driving screw rod 311, and when the first connecting member 33 rotates, the driving screw rod 311 is driven to rotate synchronously, and the rotation of the driving screw rod 311 makes the threaded sleeve 312 move linearly, and the threaded sleeve 312 is fixedly connected to the power push plate 32, and the power push plate 32 also moves linearly along with the threaded sleeve 312. Thus, when the exerciser moves the first connecting member 33, the power push plate 32 moves linearly, one of the fluid driven structures 1 stretches, and the other fluid driven structure 1 compresses, and work needs to be done against the fluid resistance.

In other embodiments, the transmission assembly 31 includes a transmission screw 311, a threaded sleeve 312, and a gear set, the transmission ratio of the gear set may be greater than 1 or less than 1, a driving gear of the gear set is fixedly connected to the first connecting member 33, and a driven gear of the gear set is fixedly connected to the transmission screw 311. Through the arrangement of the gear set, the rotation speed ratio of the first connecting element 33 and the drive screw 311 can be changed.

In other embodiments, the transmission assembly 31 includes a gear and a rack, the gear is a power input end of the transmission assembly 31, the gear is fixedly connected to the first connecting member 33, the rack is a power output end of the transmission assembly 31, and the rack is fixedly connected to the power push plate 32. When the first connecting piece 33 drives the gear to rotate, the power push plate 32 can also move linearly.

In one embodiment of the present invention, referring to fig. 2, the fluid driving structure 1 includes a first end plate 351, a second end plate, and a folding unit 11. Both ends of the folding unit 11 are respectively connected to the first end plate 351 and the second end plate, the first end plate 351, the second end plate and the power push plate 32 can be arranged in parallel, when the volume of the fluid driving structure 1 is increased, the folding unit 11 is gradually unfolded, the distance between the first end plate 351 and the second end plate is gradually increased, when the volume of the fluid driving structure 1 is reduced, the folding unit 11 is gradually folded, and the distance between the first end plate 351 and the second end plate is gradually reduced.

The second end plates of the two fluid driving structures 1 are both fixedly connected with the power push plate 32, and it can also be considered that the second end plates of the two fluid driving structures 1 are the power push plate 32. The two ends of the driving screw 311 are rotatably supported by the two first end plates 351. Wherein, all be provided with bearing 3111 on two first end plates 351, the both ends of drive screw 311 are supported on corresponding first end plate 351 through two bearings 3111 respectively, make drive screw 311 can rotate steadily.

In one embodiment of the present invention, referring to fig. 2, in the same fluid driving structure 1, the number of the folding units 11 is two, wherein one folding unit 11 is sleeved on the periphery of the other folding unit 11. A containing cavity for containing fluid is arranged between the two folding units 11, and two ends of the containing cavity are respectively sealed by the first end plate 351 and the second end plate. That is, the first end plate 351, the second end plate, and the folding unit 11 enclose a housing chamber of the fluid driving structure 1. In this embodiment, the driving screw 311 can be disposed through the inner folding unit 11, so as to fully utilize the space occupied by the folding unit 11, and make the damping structure 100 more compact.

In other embodiments, in the same fluid driving structure 1, the number of the folding units 11 is one, and the inner peripheral wall of the folding unit 11, the first end plate 351 and the second end plate surround to form a containing cavity of the fluid driving structure 1.

In other embodiments, referring to fig. 4, the damping mechanism 100 further includes a housing structure 353, and the fluid driving structure 1, the transmission assembly 31, and the like are located in the housing structure 353. In the same fluid driving structure 1, the number of the folding units 11 is one, and the outer peripheral wall of the folding unit 11, the first end plate 351, the second end plate and the inner peripheral wall of the housing structure 353 enclose a containing cavity of the fluid driving structure 1. In order to ensure the sealing performance of the cavity in the fluid driving structure 1, sealing structures such as an O-ring 322 are provided between the outer circumferential wall of the second end plate (the power push plate 32) and the inner circumferential wall of the housing structure 353, so as to ensure the sealing of the cavity.

In one embodiment of the present invention, referring to fig. 2, the end of the folding unit 11 is fixed to the first end plate 351 and the second end plate by a pressing ring 321. The two second end plates are illustrated as powered push plates 32. One end of the folding unit 11 is interposed between the pressing ring 321 and the first end plate 351, the end of the folding unit 11 is fixedly connected to the first end plate 351 by a second connecting member 34 such as a screw, the other end of the folding unit 11 is interposed between the power push plate 32 and the pressing ring 321, and the end of the folding unit 11 is fixed to the power push plate 32 by the second connecting member 34 such as a screw.

In other embodiments, the fluid driving structure 1 may also be a hydraulic cylinder.

In one embodiment of the present invention, when the first connecting member 33 moves relative to the second connecting member 34, the force required for the relative movement of the two members can be set to be a constant force. Specifically, the damping mechanism 100 further includes a pressure sensor for detecting a pressure generated when the first link 33 moves relative to the second link 34. If the pressure value detected by the pressure sensor is increased, the flow regulating valve 2 is adjusted, the flow of the flow regulating valve 2 is increased, the pressure generated when the first connecting piece 33 and the second connecting piece 34 move is reduced, and the pressure returns to the set pressure value; if the pressure value detected by the pressure sensor is decreased, the flow regulating valve 2 is adjusted to decrease the flow of the flow regulating valve 2, so that the pressure generated when the first connecting piece 33 and the second connecting piece 34 move is increased to return to the set pressure value.

Alternatively, the force required for the relative movement of the first connecting member 33 with respect to the second connecting member 34 may be adjusted in multiple steps, and the pressure value preset by the pressure sensor may be set to be multiple.

Alternatively, the first connecting member 33 and the second connecting member 34 can generate relative movement under the action of no external force, so that the two fluid driving structures 1 gradually return to the initial state.

In one embodiment of the present invention, referring to fig. 2 and 3, the damping structure 100 further includes a guiding structure for guiding the power pushing plate 32, so that the power pushing plate 32 moves more smoothly, and the phenomenon of leaning towards a certain side during movement does not occur.

The guide structure comprises a guide rod 361 and a guide sleeve 362, two ends of the guide rod 361 are respectively fixed on two first end plates 351, the guide rod 361 and the transmission screw rod 311 are parallel to each other, the guide sleeve 362 is fixedly connected with the power push plate 32, and when the power push plate 32 moves, the guide sleeve 362 slides on the guide rod 361 along the length direction of the guide rod 361, so that the power push plate 32 can be prevented from inclining towards one side, and the linear motion of the power push plate 32 is ensured. The guide sleeve 362 can be integrally formed with the power push plate 32, and a guide hole for the guide rod 361 to pass through is formed in the power push plate 32, so that the guide sleeve 362 can be formed. The number of the guide structures is plural, and the guide structures may be provided around the circumference of the folding unit 11 or the transmission screw 311. The specific arrangement and number of guide structures is not limited herein.

In one embodiment of the present invention, the driving screw 311 is hollow, so that the weight of the damping structure 100 can be reduced, raw materials can be saved, and the production cost can be reduced. The drive screw 311 may also be a solid structure.

In one embodiment of the present invention, referring to fig. 2 and fig. 3, the damping structure 100 further includes a housing 35, and the two fluid driving structures 1, the power pushing plate 32 and the transmission assembly 31 are disposed inside the housing 35. When the flow rate control valve 2 communicates with the fluid driving structure 1 through the fluid pipe 201, the flow rate control valve 2 is disposed outside the housing 35, the second connection member 34 is also disposed outside the housing 35, and the second connection member 34 is fixed. The flow control valve 2 and the second connector 34 may both be fixedly connected to the housing 35. When the body-building person exercises, the body-building person can hold the second connecting piece 34 with one hand and hold the first connecting piece 33 with the other hand, and the body-building purpose is achieved by moving the first connecting piece 33. The housing 35 may include two first end plates 351 and a cylindrical portion 352, and opposite ends of the cylindrical portion 352 are fixedly connected to the two first end plates 351, respectively.

Optionally, the damping structure 100 includes a first U-shaped member 341, the flow regulating valve 2 and the second connecting member 34 are fixed to the bottom of the first U-shaped member 341, and both ends of the top of the first U-shaped member 341 are respectively fixed to the two first end plates 351, so that the stress on each part of the housing 35 is relatively balanced.

In one embodiment of the present invention, referring to fig. 2 and fig. 3, the damping structure 100 further includes a second U-shaped member 331, a bottom of the second U-shaped member 331 is fixedly connected to the first connecting member 33, and two ends of a top of the second U-shaped member 331 are respectively fixedly connected to two ends of the driving screw 311. When the first connecting member 33 rotates, the driving screw 311 rotates synchronously. The second U-shaped member 331 is disposed such that the first connecting member 33 can be fixedly connected to both ends of the driving screw 311, and the driving screw 311 can rotate by the rotation of the first connecting member 33.

In one embodiment of the present invention, referring to fig. 2 and fig. 3, a fluid pipe 201 is connected to a side of the fluid driving structure 1 away from the power pushing plate 32, that is, the fluid pipes 201 are connected to both the first end plates 351, so that the fluid in the two fluid driving structures 1 can flow out through the fluid pipes 201. The flow control valve 2 is communicated with the two fluid driving structures 1 through fluid pipes 201, that is, two ends of the flow control valve 2 are respectively connected with the two fluid pipes 201, and the two fluid pipes 201 are respectively communicated to the accommodating cavities of the two fluid driving structures 1. In this way, the fluid in one of the fluid driving structures 1 can enter the other fluid driving structure 1 through the flow regulating valve 2.

In one embodiment of the present invention, referring to fig. 5 and 6, the flow control valve 2 includes a first linear driving mechanism 21, a pressing block 23, a flexible pipe 24 and a first fixing seat 22. The hose 24 is used for passing a fluid such as gas or liquid, and the flow rate of the hose 24 can be adjusted by controlling the size of the passage of the hose 24. The first linear driving mechanism 21 can output linear motion, and the pressing block 23 is fixed at the moving end of the first linear driving mechanism 21, so that the pressing block 23 can do linear motion. The first fixing seat 22 is fixedly arranged, and the hose 24 is arranged between the pressing block 23 and the first fixing seat 22. The hose 24 is made of a soft material and can be deformed after being extruded, the channel area inside the hose is changed when the hose is deformed, the channel area of the hose 24 is reduced after being extruded, and the fluid passing through the flow rate regulating valve in unit time is reduced.

Specifically, referring to fig. 5, when the flow rate of the flow rate adjustment valve 2 needs to be reduced, the first linear drive mechanism 21 is operated to move the pressure piece 23 downward, squeeze and deform the hose 24, reduce the passage area in the hose 24, and reduce the amount of fluid that can pass through the flow rate adjustment valve 2 per unit time. When the flow rate of the flow rate adjusting valve 2 needs to be increased, the first linear driving mechanism 21 works to move the pressing block 23 upwards, the deformation degree of the hose 24 is reduced, the channel area in the hose 24 is increased, and the fluid which can pass through the flow rate adjusting valve 2 in unit time is increased. Under the action of the first linear driving mechanism 21, the pressing block 23 is pressed down to cooperate with the first fixing seat 22 to extrude the hose 24, so that a channel in the hose 24 can be closed.

In one embodiment of the present invention, the length direction of the flexible tube 24 is perpendicular to the moving direction of the pressing block 23, so that the flexible tube 24 can be effectively compressed in the shortest stroke when the pressing block 23 is pressed down.

In one embodiment of the present invention, referring to fig. 8, the cross section of the flexible tube 24 is an ellipse, and the minor axis of the ellipse is parallel to the moving direction of the pressing block 23. That is, the pressing block 23 is pressed down to tightly close the passage of the hose 24, the moving distance is about the length of the minor axis of the ellipse, and the moving distance of the pressing block 23 is small, so that the passage in the hose 24 can be quickly and effectively blocked and opened.

In other embodiments, the cross section of the flexible tube 24 is an ellipse, and the minor axis of the ellipse may be disposed at an acute angle with the moving direction of the pressing block 23, so that the pressing block 23 can also press the flexible tube 24 to cut off the passage inside the flexible tube 24 after reaching a predetermined moving stroke.

In other embodiments, the cross-section of the hose 24 may be circular, triangular, diamond-shaped, etc., and the cross-sectional shape of the hose 24 is not limited herein.

In one embodiment of the present invention, referring to fig. 8, the cross section of the flexible tube 24 is an ellipse, and the minor axis of the ellipse is parallel to the moving direction of the pressing block 23. Furthermore, the intersection of the inner wall of the hose 24 and the major axis of the oval shape has an edge 240, and the two adjacent inner walls forming the edge 240 are a first inner wall 2401 and a second inner wall 2402, respectively. When the hose 24 is squeezed by the pressure block 23, the first inner wall 2401 and the second inner wall 2402 gradually overlap with each other, so that the left side and the right side of the hose 24 can be completely closed, and compared with the structure in which the left side and the right side of the hose 24 are in the shape of circular arcs, the structure in fig. 8 allows the passage of the hose 24 to be more easily broken, and the situation that the flow rate adjustment valve cannot be completely closed does not occur.

In the above embodiment, it can also be understood that the cross section of the hose 24 is a diamond shape, the shorter diagonal line of the diamond shape is parallel to the moving direction of the pressing block 23, the two vertex angles of the diamond shape intersecting with the longer diagonal line are the first vertex angle, which is the above-mentioned edge angle 240, and the two vertex angles of the diamond shape intersecting with the shorter diagonal line are the second vertex angle. When the hose 24 is pressed by the pressing block 23, the two first vertex angles of the rhombus gradually decrease until the hose is completely closed, and the second vertex angle correspondingly gradually increases. Wherein, two second apex angles departments can be the fillet form and set up, prevent after briquetting 23 pushes down many times that hose 24 splits at the second apex angle department.

In one embodiment of the present invention, referring to fig. 8, the wall thickness of the hose 24 is greatest at the corner 240, i.e., the wall thickness of the hose 24 at the corner 240 is greater than the wall thickness of the hose 24 elsewhere. When the flow rate regulating valve is used for a long time, the joint of the two side walls (the first inner wall 2401 and the second inner wall 2402) forming the corner 240 is bent for multiple times, so that the corner is easy to break, the wall thickness of the part is increased, the possibility of the part breaking can be reduced, and the service life of the hose 24 is prolonged.

In one embodiment of the present invention, referring to fig. 7, the first linear driving mechanism 21 includes a first motor 211, a first lead screw 212, a first nut seat 213 and a first guide rod 214. The first motor 211 can output a rotational motion, the first lead screw 212 is connected to a rotational motion end of the first motor 211, and the first motor 211 can drive the first lead screw 212 to rotate. The first nut seat 213 is threadedly connected to the first lead screw 212, the first guide rod 214 is inserted into the first nut seat 213, and the first guide rod 214 and the first lead screw 212 are parallel to each other. When the first lead screw 212 rotates, the first nut holder 213 moves along the length direction of the first lead screw 212, and the first nut holder 213 is guided by the first guide rod 214 to prevent circumferential rotation and ensure stable linear motion of the first nut holder 213. The pressing block 23 is fixedly connected with the first nut seat 213, and when the first nut seat 213 translates, the pressing block 23 also moves synchronously. Therefore, when the first motor 211 is operated, the pressing block 23 may reciprocate in the length direction of the first screw 212.

The number of the first guide rods 214 may be selected to be plural, the number of the guide holes of the first nut holder 213 is the same as the number of the first guide rods 214, and the first guide rods 214 are disposed through the corresponding guide holes. The first guide lever 214 is disposed around the first lead screw 212. For example, the number of the first guide rods 214 is two, and the two first guide rods are respectively arranged on two sides of the first screw rod 212; alternatively, the number of the first guide rods 214 is four, and the first guide rods are circumferentially arranged at the periphery of the first lead screw 212.

In another embodiment of the present invention, the first linear driving mechanism 21 is a mechanism capable of outputting linear motion, such as a linear motor, an air cylinder, or a hydraulic cylinder. Or, the first linear driving mechanism 21 includes a first motor 211 outputting a rotational motion, a gear and a rack, the gear is connected to a moving end of the first motor 211, the rack and the gear are engaged with each other, and the pressing block 23 is connected to the rack, so that when the first motor 211 works, the pressing block 23 can be driven to move linearly.

In one embodiment of the present invention, referring to fig. 5 to 7, the first fixing base 22 includes a bottom plate 221, two side plates 223, and a top plate 222. The top and bottom ends of the side plate 223 are connected with the top plate 222 and the bottom plate 221, respectively, so that the bottom plate 221, the two side plates 223, and the top plate 222 constitute a frame-shaped structure. The hose 24 is provided between the bottom plate 221 and the compact 23, and when the compact 23 is pressed down, the hose 24 is sandwiched between the bottom plate 221 and the compact 23, thereby adjusting the flow rate of the hose 24. The hose 24 is disposed through a gap between the two side plates 223, and both ends of the hose 24 may be fixed to the bottom plate 221.

The hard protection tube 241 can be sleeved on the periphery of the hose 24, the hard protection tube 241 is divided into two sections, a gap is formed between the two sections of hard protection tubes 241, the hose 24 is partially exposed, the pressing block 23 is opposite to the exposed part of the hose 24, and when the pressing block 23 is pressed down, the hose 24 can be pressed tightly, and the hose 24 is deformed. The hard protection tube 241 can protect the unexposed part of the hose 24, and only the exposed part is pressed by the pressing block 23, so that the service life of the hose 24 can be prolonged, and a certain shaping effect is achieved.

Alternatively, the first motor 211 is fixed on the top plate 222, the first motor 211 can be fixed on a side of the top plate 222 opposite to the side plates 223, and a rotation end of the first motor 211 penetrates through the top plate 222 to a position between the two side plates 223 and is connected with the first lead screw 212.

Alternatively, the first lead screw 212, the first nut holder 213 and the first guide rod 214 are all disposed between two side plates 223, and the two side plates 223 have a certain protection effect on the first lead screw 212, the first nut holder 213 and the first guide rod 214. In this embodiment, the number of the first guide rods 214 is two, and the two first guide rods 214 are respectively disposed at the left and right sides of the first lead screw 212, so that the width space occupied by the first lead screw 212, the first nut seat 213, and the first guide rod 214 is small, and thus the distance between the two side plates 223 can be reduced, and the structure of the flow rate adjusting valve can be more compact. Both ends of the first guide bar 214 are fixed to the top plate 222 and the bottom plate 221, respectively, and function to fix the first guide bar 214.

In one embodiment of the present invention, referring to fig. 5 and 6, the first fixing seat 22 is provided with a first sensor 251 and a second sensor 252, and the first sensor 251 and the second sensor 252 are respectively disposed at two ends of a stroke of the pressing block 23 and are used for detecting whether the pressing block 23 reaches the limit position. Specifically, the first sensor 251 is used to detect whether the pressing piece 23 releases the hose 24, i.e., whether the pressing piece 23 is located at the highest point, and the second sensor 252 is used to detect whether the pressing piece 23 presses the hose 24, i.e., whether the pressing piece 23 is located at the lowest point. The pressing block 23 may be provided with a first trigger piece 253 and a second trigger piece 254, wherein the first trigger piece 253 is used for triggering the first sensor 251, and the second trigger piece 254 is used for triggering the second sensor 252. The first sensor 251 and the second sensor 252 may both be photosensors.

Optionally, the first sensor 251 is fixed to one of the side plates 223, the second sensor 252 is fixed to the other side plate 223, and the pressing block 23 is fixed with a trigger structure, and a first trigger piece 253 and a second trigger piece 254 are respectively arranged on two opposite sides of the trigger structure. The trigger structure may be fixedly connected to the press block 23 or integrally formed therewith.

In one embodiment of the present invention, referring to fig. 9 and 10, the flow control valve 2 includes a second linear actuator 261, a plug 262, a pipe 263 and a sealing structure 264. The second linear driving mechanism 261 can output a linear motion, and the stopper 262 can linearly reciprocate by being driven by the second linear driving mechanism 261. The duct 263 is provided with an inlet 2630, and the plug 262 can penetrate through the inlet 2630 and enter the duct 263. When the plug 262 does not extend into the pipe 263, the passage in the pipe 263 is not shielded, and the flow regulating valve is completely opened; the longer the plug 262 extends, the smaller the channel of the pipe 263, and the smaller the flow rate of the pipe 263, and after the plug 262 completely extends into the pipe 263, the channel of the pipe 263 can be blocked, and the flow rate regulating valve is closed. A pressure relief channel is formed between an outer wall of the plug 262 and an inner wall of the insertion opening 2630, the plug 262 is disposed inside the sealing structure 264, the plug 262 is fixedly connected to a first end of the sealing structure 264, and the other end of the sealing structure 264 is fixed to a periphery of the insertion opening 2630, so that the volume of the sealing structure 264 can be increased or decreased, for example, the sealing structure can be stretched or compressed, and one end of the sealing structure 264 is hermetically connected to the plug 262 and moves along with the movement of the plug 262, thereby stretching or compressing. A sealing chamber 2643 is formed between the sealing structure 264 and the stopper 262, and the sealing chamber 2643 communicates with the inside of the duct 263. Thus, when the plug 262 moves at a high frequency, the pressure in the tube 263 is high, and when the pressure in the tube 263 is too high, the fluid enters the sealing cavity 2643 through the gap between the plug 262 and the inlet 2630, thereby preventing the fluid from leaking. The fluid may be gas, liquid, etc.

In one embodiment of the present invention, referring to fig. 10, the plug 262 is connected with the inlet 2630 in a sealing manner, the outer peripheral wall of the plug 262 is provided with a pressure relief groove 26220, and the liquid in the pipe 263 can only flow out from the pressure relief groove 26220 to the sealing cavity 2643. When the pressure in the pipe 263 is too high, the fluid in the pipe 263 can enter the sealing cavity 2643 through the pressure relief groove 26220, so that the pressure in the pipe 263 is relieved, the excessive impact on the plug 262 is avoided, and the fluid leakage can be prevented. The pressure relief groove 26220 may extend to an end of the plug 262 for extending into the pipe 263, so that when the end of the plug 262 is close to the extending port 2630, the end cannot be completely blocked by an inner wall of the extending port 2630, and the liquid can still enter the sealed cavity 2643 through the pressure relief groove 26220.

Optionally, referring to fig. 11, the pressure relief groove 26220 is a straight bar, and the length direction thereof is the same as the moving direction of the plug 262, i.e., the pressure relief groove 26220 extends along the moving direction of the plug 262. The number of the pressure relief grooves 26220 is plural, and the pressure relief grooves are sequentially arranged at the periphery of the plug 262 at intervals. In this embodiment, the plug 262 may be cylindrical, elliptical, or elongated.

Alternatively, pressure relief groove 26220 extends in a spiral shape and is disposed spirally about the outer peripheral wall of plug 262. Correspondingly, plug 262 is cylindrical and has a circular cross-section. The number of the pressure relief grooves 26220 may be plural, and adjacent pressure relief grooves 26220 are spaced apart from each other.

In one embodiment of the present invention, referring to fig. 10, a sealing element 265 is disposed at a periphery of the inlet 2630, and when the plug 262 extends into the conduit 263 to completely block the conduit 263, the sealing element 265 cooperates with the plug 262 to completely seal the inlet 2630 of the conduit 263, so that the flow regulating valve is in a closed state. An annular groove may be formed at a periphery of the insertion opening 2630, the annular groove is used for accommodating the sealing element 265, and the sealing element 265 faces an inner portion of the sealing cavity 2643 and is capable of being press-fitted with a stopping step 2623 described below.

Specifically, referring to fig. 10 and 11, the plug 262 includes a connection section 2621 and a blocking section 2622, one end of the connection section 2621 is fixedly connected to the sealing structure 264, the other end of the connection section 2621 is fixedly connected to the blocking section 2622, and the blocking section 2622 is used to extend into the inside of the pipeline 263. A stopping step 2623 is formed at the connection between the connection section 2621 and the blocking section 2622, and when the stopping step 2623 of the plug 262 moves to a position close to the inlet 2630, the stopping step 2623 extrudes the sealing member 265, so that the tube 263 is in a sealing state at the inlet 2630. Furthermore, the pressure relief groove 26220 is provided in the blocking section 2622, when the stopping step 2623 presses the sealing member 265, the pressure relief groove 26220 is completely located in the conduit 263, and the pressure relief groove 26220 cannot be communicated to the sealing cavity 2643, that is, the conduit 263 is completely sealed at the inlet 2630, so that the flow regulating valve is closed.

The cross-sectional area of the connecting section 2621 is larger than that of the plugging section 2622. When the cross section of the plug 262 is circular, the diameter of the connecting section 2621 is larger than that of the blocking section 2622; when the cross section of the plug 262 is square, the side length of the connection section 2621 is greater than the side length of the blocking section 2622.

Optionally, the stopping step 2623 is inclined with respect to the cross section of the plug 262, so that the stopping step 2623 can be processed more easily, and a longer buffering stroke is provided after the plug 262 contacts the sealing element 265, so as to prevent the sealing element 265 from being excessively squeezed.

In another embodiment of the present invention, a gap is formed between the outer peripheral wall of the plug 262 and the inner peripheral wall of the inlet 2630, and the gap is a pressure relief channel, which is used to communicate the channel 263 and the sealed cavity 2643, and through which the fluid in the channel 263 can enter the sealed cavity 2643.

In one embodiment of the present invention, referring to fig. 10, a gasket 266 is disposed on the conduit 263 opposite the inlet 2630, and after the plug 262 is fully inserted into the conduit 263, the end of the plug 262 contacts the gasket 266 and presses the gasket 266, so that the fluid passage in the conduit 263 is completely closed. The channel 263 may have a receiving groove at the sealing pad 266, and the sealing pad 266 is disposed in the receiving groove.

Alternatively, the end of plug 262 that extends into conduit 263 is provided with a seal 266, and after plug 262 is fully inserted into conduit 263, the inner walls of plug 262 and conduit 263 compress seal 266 against each other, thereby fully closing the fluid path within conduit 263.

In one embodiment of the present invention, referring to fig. 10, the sealing structure 264 includes a foldable cylinder 2641 and an end plate 2642, the end plate 2642 is connected to one end of the foldable cylinder 2641, one end of the foldable cylinder 2641 is closed by the end plate 2642, the other end of the foldable cylinder 2641 is open, and the open end of the foldable cylinder 2641 is fixed to the periphery of the protruding opening 2630. The folding cylinder 2641 can be folded or unfolded, and the folding cylinder 2641 is in a contracted state when folded and in an extended state when unfolded. The folding cartridge 2641 is configured such that the sealing structure 264 may be contracted or extended in response to movement of the stopper 262. One end of plug 262 is secured to end plate 2642 and the other end of plug 262 extends into the interior of conduit 263.

In other embodiments, the sealing structure 264 may be a balloon or other structure that can be enlarged or reduced.

In one embodiment of the present invention, referring to fig. 10 and 11, the second linear driving mechanism 261 includes a second motor 2611, a second screw 2612, a second nut seat 2613 and a second guiding rod 2614. The second motor 2611 can output rotary motion, the second screw rod 2612 is connected with the rotary motion end of the second motor 2611, and the second motor 2611 can drive the second screw rod 2612 to rotate. The second nut seat 2613 is threadedly connected to the second screw rod 2612, the second guide rod 2614 is inserted into the second nut seat 2613, and the second guide rod 2614 and the second screw rod 2612 are parallel to each other. When the second screw rod 2612 rotates, the second nut seat 2613 moves along the length direction of the second screw rod 2612, and not only can the second nut seat 2613 be prevented from rotating in the circumferential direction, but also the second nut seat 2613 can be ensured to move in a stable straight line under the guiding action of the second guide rod 2614. The plug 262 is fixedly connected with the second nut seat 2613, and when the second nut seat 2613 translates, the plug 262 also moves synchronously. Therefore, when the second motor 2611 is operated, the plug 262 can reciprocate along the length direction of the second screw 2612.

The number of the second guide rods 2614 can be selected to be multiple, the number of the guide holes on the second nut seat 2613 is the same as the number of the second guide rods 2614, and the second guide rods 2614 are arranged through the corresponding guide holes. The second guide bar 2614 is disposed around the second screw bar 2612. For example, the number of the second guide rods 2614 is two, and the two second guide rods are respectively arranged at two sides of the second screw rod 2612; alternatively, the number of the second guide bars 2614 is four, and they are circumferentially arranged at the circumference of the second screw bar 2612.

Alternatively, the end plate 2642 of the sealing structure 264 is sandwiched between the second nut seat 2613 and the plug 262, and the second nut seat 2613 and the plug 262 may be fixedly connected by a fixing member such as a screw member.

In another embodiment of the present invention, the second linear driving mechanism 261 is a mechanism capable of outputting a linear motion, such as a linear motor, an air cylinder, or a hydraulic cylinder. Alternatively, the second linear driving mechanism 261 includes a second motor 2611 outputting a rotational motion, a gear and a rack, the gear is connected to a moving end of the second motor 2611, the rack is engaged with the gear, and the plug 262 is connected with the rack, so that when the second motor 2611 operates, the plug 262 can be driven to move linearly.

In one embodiment of the present invention, the flow control valve 2 further includes a second fixing seat 267, and the second linear driving mechanism 261 and the conduit 263 are disposed on the second fixing seat 267. The second fixing seat 267 is further provided with a third sensor 2681 and a fourth sensor 2682, and the third sensor 2681 and the fourth sensor 2682 are respectively disposed at two ends of the stroke of the plug 262, and are configured to detect whether the plug 262 reaches the first limit position and the second limit position. Specifically, with reference to fig. 2, the first limit position is the highest point of the plug 262, and when the plug 262 is in the first limit position, the passage of the conduit 263 is completely open; the second limit is the lowest point of the plug 262, and when the plug 262 is in the second limit, the passage of the conduit 263 is completely closed. A third triggering piece 2683 and a fourth triggering piece 2684 may be disposed on the second nut seat 2613, where the third triggering piece 2683 is used to trigger the third sensor 2681, and the fourth triggering piece 2684 is used to trigger the fourth sensor 2682. The third sensor 2681 and the fourth sensor 2682 may both be photosensors.

In one embodiment of the present invention, the flow regulating valve 2 is disposed at the power push plate 32, and the adjacent sides of the two fluid driving structures 1 are communicated through the flow regulating valve 2. That is, the flow rate adjustment valve 2 is disposed inside the housing 35 without connecting the fluid pipe 201 to the first end plate 351, and the flow rate adjustment valve 2 moves directly with the movement of the power push plate 32. In this embodiment, the flow modulating structure valve 2 may replace the powered push plate 32.

Referring to fig. 12 to 14, the flow control valve 2 includes two clamping plates 271 and a valve core structure 272, and the valve core structure 272 is disposed between the two clamping plates 271, so that the flow control valve 2 has a flat structure. Through holes 2710 are formed in the two clamping plates 271, and the through holes 2710 in the two clamping plates 271 are opposite. It should be noted that the through holes 2710 of the two clamping plates 271 may be completely overlapped or partially overlapped, and one through hole 2710 may be located in the other through hole 2710, as long as fluid such as gas, liquid, etc. can pass through the through hole 2710 of the other clamping plate 271 from the through hole 2710 of one of the clamping plates 271.

The valve core structure 272 includes a rotation structure 2721, and the rotation structure 2721 can rotate, and the rotation structure 2721 gradually covers the through hole 2710 during rotation. In the process that the rotation structure 2721 rotates toward one direction, the through hole 2710 is not blocked by the rotation structure 2721 (the flow rate of the flow rate adjustment valve 2 is the largest at this time), and then the blocked part of the through hole 2710 is gradually increased to be completely blocked (the flow rate adjustment valve 2 is closed at this time), so that the flow rate adjustment of the flow rate adjustment valve 2 is realized.

The joint surface between the two clamping plates 271 and the valve core structure 272 is sealed, so that fluid cannot leak in the process of flowing inside the flow regulating valve 2, and the sealing performance of the flow regulating valve 2 is ensured.

In one embodiment of the present invention, referring to fig. 1 and fig. 2, the number of the through holes 2710 on the clamping plate 271 is plural, and the plural through holes 2710 are circumferentially spaced along the rotation central axis of the rotation structure 2721, that is, the plural through holes 2710 are all disposed around the rotation central axis of the rotation structure 2721. Referring to fig. 2 and fig. 3, the flow rate adjustment holes 27210 are multiple in number, and the flow rate adjustment holes 27210 are circumferentially spaced along a central rotation axis of the rotating structure 2721, that is, the flow rate adjustment holes 27210 are all disposed around the central rotation axis of the rotating structure 2721.

In one embodiment of the present invention, referring to fig. 13 and 14, a flow adjusting hole 27210 is formed on the rotating structure 2721, and the flow adjusting hole 27210 is overlapped with the through hole 2710. When the flow rate adjustment hole 27210 and the through hole 2710 overlap, fluid can flow from one side of the flow rate adjustment valve 2 to the other side, and when the flow rate adjustment hole 27210 and the through hole 2710 do not overlap, the flow rate adjustment valve 2 is completely closed.

Optionally, one through hole 2710 is correspondingly matched with one flow regulating hole 27210, and the number of the through holes 2710 on the same clamping plate 271 is the same as that of the flow regulating holes 27210. When one of the through holes 2710 completely coincides with the flow adjustment aperture 27210, the other through holes 2710 also completely coincide with the corresponding flow adjustment aperture 27210. The through hole 2710 may be circular, arcuate, etc., and the flow adjustment aperture 27210 may also be circular, arcuate, etc.

Alternatively, one through bore 2710 may correspond to one flow regulating orifice set, which may include a plurality of flow regulating orifices 27210. For example, one set of flow regulating orifices includes three flow regulating orifices 27210. The flow regulating aperture 27210 can be a circular aperture and the through-hole 2710 can be a circular or arcuate aperture.

In one embodiment of the present invention, referring to fig. 15 and 16, the valve core structure 272 includes a rotating structure 2721 and a hinge 2726, the rotating structure 2721 is capable of rotating, a guide slot 27250 is formed on the rotating structure 2721, one end of the hinge 2726 is guided by the guide slot 27250, the end of the hinge 2726 can slide along an extending direction of the guide slot 27250, and the other end of the hinge 2726 is hinged to the clamp plate 271. When the rotating structure 2721 rotates, one end of the flap 2726 slides in the extending direction of the guide groove 27250, the other end of the flap 2726 rotates relative to the holder 271, the area of the through hole 2710 shielded by the flap 2726 changes continuously, when the through hole 2710 is completely shielded by the flap 2726, the flow rate adjustment valve 2 is closed, when the through hole 2710 is partially shielded by the flap 2726, the flow rate adjustment valve 2 is partially opened, and when the through hole 2710 is not shielded by the flap 2726, the flow rate adjustment valve 2 is completely opened.

Optionally, one end of the hinge 2726 has a raised post that extends into the guide slot 27250 so that the guide slot 27250 guides the movement of the hinge 2726. The shape of the hinge 2726 is not limited herein.

In one embodiment of the present invention, referring to fig. 15 and 16, the rotating structure 2721 includes a circular ring portion 2724 and a plurality of guiding portions 2725, and the guiding portions 2725 are formed by extending an inner wall of the circular ring portion 2724 toward a center of the circular ring portion 2724. The guide portion 2725 may have a length direction that is radial to the annular portion 2724. The guiding portion 2725 has a guiding groove 27250, and the length direction of the guiding groove 27250 may be radial to the ring portion 2724. In this embodiment, guide groove 27250 is elongated. In other embodiments, the guide groove 27250 may also be arc-shaped.

In one embodiment of the present invention, referring to fig. 2 to 4, a first annular protrusion 2711 is protruded from a side of the clamping plate 271 facing the valve core structure 272, the first annular protrusion 2711 is annular, the rotating structure 2721 is disposed inside the first annular protrusion 2711, a first sealing ring 273 is disposed between the rotating structure 2721 and the first annular protrusion 2711, and the first sealing ring 273 is used for sealing a joint surface between the two clamping plates 271 and the rotating structure 2721. Specifically, a first seal ring 273 is provided between an outer peripheral wall of the rotating structure 2721 and an inner peripheral wall of the first annular protrusion 2711, the inner peripheral wall of the first seal ring 273 abuts against the outer peripheral wall of the rotating structure 2721, the outer peripheral wall of the first seal ring 273 abuts against the inner peripheral wall of the first annular protrusion 2711, and two end surfaces of the first seal ring 273 in the axial direction abut against the two clamping plates 271, respectively.

Optionally, a first annular protrusion 2711 is arranged on one of the clamping plates 271; or, the two clamping plates 271 are both provided with first annular protrusions 2711, and the two first annular protrusions 2711 are arranged oppositely.

In one embodiment of the present invention, referring to fig. 2 and fig. 3, a convex structure 2715 is convexly disposed on a side of the clamping plate 271 facing the valve core structure 272, the convex structure 2715 may be disposed at a center of the clamping plate 271, and an outer peripheral wall of the convex structure 2715 is provided with a second sealing ring 274, so that an inner peripheral wall of the rotating structure 2721 is also sealed. Specifically, the inner peripheral wall of the second seal ring 274 abuts against the outer peripheral wall of the boss 2715, and both end surfaces of the second seal ring 274 in the axial direction abut against the two clamp plates 271, respectively.

Optionally, a boss structure 2715 is provided on one of the clamp plates 271; or, the two clamping plates 271 are both provided with the boss structures 2715, and the two boss structures 2715 are arranged oppositely. Boss structure 2715 may be frustoconical.

In one embodiment of the present invention, referring to fig. 2 to 4, the valve core structure 272 further includes a first link 2722 and a second link 2723, one end of the first link 2722 is hinged to the clamp plate 271, the other end of the first link 2722 is hinged to one end of the second link 2723, and the other end of the second link 2723 is fixedly connected to the rotating structure 2721. The first link 2722 is a telescopic link, so that when the first link 2722 rotates, the second link 2723 and the rotating structure 2721 can be rotated about a rotation center axis of the rotating structure 2721. The second link 2723 may be disposed in a radial direction of the rotation structure 2721, so that the second link 2723 occupies a minimum space when moving, and the size of the avoidance notch 2713 described below is reduced as much as possible.

In other embodiments, the other end of the first link 2722 is hinged to one end of the second link 2723, and the other end of the second link 2723 is hinged to the rotating structure 2721, so that the rotating structure 2721 can rotate around its central rotation axis.

In other embodiments, the rotating structure 2721 may be directly driven to rotate without providing the first link 2722 and the second link 2723.

In one embodiment of the present invention, referring to fig. 2 to 4, a first annular protrusion 2711 and a second annular protrusion 2712 are protruded from one side of the clamping plate 271 facing the valve core structure 272, the rotating structure 2721 is disposed inside the first annular protrusion 2711, and the second annular protrusion 2712 is disposed outside the first annular protrusion 2711, that is, the rotating structure 2721, the first annular protrusion 2711, and the second annular protrusion 2712 are sequentially disposed from the center of the rotating structure 2721 to the outside in a radial direction. An annular groove 2714 is formed between the first annular protrusion 2711 and the second annular protrusion 2712, and a third sealing ring 275 is disposed inside the annular groove 2714. The first connecting rod 2722 and the second connecting rod 2723 are disposed outside the rotating structure 2721, the first annular protrusion 2711 and the second annular protrusion 2712 are both provided with an avoidance notch 2713, and the second connecting rod 2723 extends from the avoidance notch 2713. In other embodiments, the first link 2722 and the second link 2723 may also be provided within a ring of the rotating structure 2721.

Since the second connecting rod 2723 extends outward from the outer wall of the rotating structure 2721, fluid may leak from the second connecting rod 2723, and therefore the third sealing ring 275 is provided to seal the second connecting rod 2723.

Optionally, the two clamping plates 271 are provided with a first annular protrusion 2711 and a second annular protrusion 2712, the number of the third sealing rings 275 is two, and the two third sealing rings 275 are arranged to clamp the second connecting rod 2723, so that fluid leakage from the second connecting rod 2723 can be prevented.

In one embodiment of the present invention, referring to fig. 3 and fig. 4, the avoiding notch 2713 has two stopping end surfaces at two ends, and the two stopping end surfaces are used for limiting the rotation angle of the second connecting rod 2723, so that the second connecting rod 2723 rotates within a predetermined angle, and when the second connecting rod 2723 rotates within the predetermined angle, the flow of the flow regulating valve 2 can be regulated.

In one embodiment of the present invention, referring to fig. 2 and 3, the second link 2723 is provided with a link groove 27230, and the link groove 27230 is used for avoiding the third seal ring 275, so that the third seal ring 275 is partially recessed in the link groove 27230, and when the second link 2723 moves, the third seal ring 275 can be always kept in the link groove 27230, and the third seal ring 275 is prevented from being rolled and deformed by the second link 2723. Wherein, both sides of the second connecting rod 2723 are provided with a connecting rod groove 27230 for respectively avoiding the corresponding third sealing ring 275.

Referring to fig. 4 and 5, the present invention further provides an exercise apparatus, which includes the damping structure 100 in any of the above embodiments. Referring to fig. 17, the exercise apparatus further includes a first rod 200 and a second rod 300, wherein the first rod 200 is connected to the first connecting member 33, and the second rod 300 is connected to the second connecting member 34.

The body-building equipment provided by the invention adopts the damping structure 100, the damping structure 100 is provided with two fluid driving structures 1, the power push plate 32 is arranged between the two fluid driving structures 1 in a spaced mode, the flow regulating valve 2 is communicated with the two fluid driving structures 1, and when the first connecting piece 33 rotates relative to the second connecting piece 34, the transmission assembly 31 can convert the rotary motion of the first connecting piece 33 into linear motion, so that the power push plate 32 moves. When the power push plate 32 moves, fluid flows from one of the fluid driving structures 1 to the other fluid driving structure 1 through the flow regulating valve 2, wherein one of the fluid driving structures 1 increases in volume and the other fluid driving structure 1 decreases in volume. The exerciser can overcome the fluid resistance to do work by relatively moving the first connecting member 33 and the second connecting member 34, thereby achieving the purpose of exercising. The damping structure 100 has a long life span and does not undergo irreversible structural deformation like a spring.

In one embodiment of the present invention, referring to fig. 17, the exercise apparatus further comprises a handle structure 400, wherein the handle structure 400 is used for connecting with the first lever member 200 and/or the second lever member 300. That is, a handle structure 400 is connected to one end of the first rod member 200 or the second rod member 300 far away from the damping mechanism 100, or the handle structure 400 is connected to both ends of the first rod member 200 and the second rod member 300 far away from the damping mechanism 100. The handle structure 400 is more convenient for the body-building person to hold by the hand, and improves the comfort of the hand during exercise.

In one embodiment of the present invention, referring to fig. 18 to 20, the handle structure 400 includes a handle body 41 and a first rotating connecting member 42, the handle body 41 is rotatably connected to the first rotating connecting member 42, the first rotating connecting member 42 is used for connecting to the first rod member 200 and/or the second rod member 300, and the first rotating connecting member 42 is connected to the first rod member 200. Thus, the handle structure 400 can rotate relative to the first rod 200, and when the posture of the arm changes, the handle structure 400 can rotate relative to the first rod 200 correspondingly, so that the force applied by the arm is more comfortable, and the force applied by the wrist is avoided.

The handle body 41 includes a grip portion 411 and a second rotating connector 412, and the first rotating connector 42 and the second rotating connector 412 are rotatably connected. The first rotary connecting piece 42 has a first abutting surface 421 and a second abutting surface 422, the second rotary connecting piece 412 has a third abutting surface 41211 and a fourth abutting surface 41212, the first abutting surface 421 is used for abutting against the third abutting surface 41211, and the second abutting surface 422 is used for abutting against the fourth abutting surface 41212. The included angle between the first abutting surface 421 and the second abutting surface 422 is larger than the included angle between the third abutting surface 41211 and the fourth abutting surface 41212, so that when the first abutting surface 421 and the third abutting surface 41211 abut against each other, the included angle between the second abutting surface 422 and the fourth abutting surface 41212 is set; when the second contact surface 422 and the fourth contact surface 41212 contact each other, the first contact surface 421 and the third contact surface 41211 form an included angle therebetween. Thus, the handle body 41 and the first rotating connecting piece 42 can rotate mutually, the first abutting surface 421 and the second abutting surface 422 on the first rotating connecting piece 42 abut against the handle body 41 respectively to limit the rotating angle of the handle body 41, and when the arm exerts force, the handle body 41 can be adjusted to a more suitable position to straighten the wrist as much as possible.

In one embodiment of the present invention, referring to fig. 19 and 20, the third abutting surface 41211 and the fourth abutting surface 41212 are connected by the transition surface 41213, that is, the third abutting surface 41211, the transition surface 41213 and the fourth abutting surface 41212 are connected in sequence, and the transition surface 41213 is configured to prevent a sharp corner from being formed between the third abutting surface 41211 and the fourth abutting surface 41212, so as to prevent the contact surface of the first rotating connector 42 and the second rotating connector 412 from being excessively worn. The transition surface 41213 may be an arc surface, such as a circular arc surface or a curved surface formed by connecting multiple circular arc surfaces smoothly. The transition surface 41213 may alternatively be planar. The transition surface 41213 may also be selected as a combination of a plane and a cambered surface, for example, the transition surface 41213 is connected by a cambered surface, a plane and another cambered surface in sequence, so that the third abutting surface 41211 and the fourth abutting surface 41212 are smoothly connected. The transition surface 41213 may also be a plurality of sequentially connected planar surfaces.

In one embodiment of the present invention, the included angle between the first abutting surface 421 and the second abutting surface 422 is 70 ° to 110 °, and the included angle between the third abutting surface 41211 and the fourth abutting surface 41212 is 30 ° to 80 °. Optionally, an included angle between the first abutting surface 421 and the second abutting surface 422 is 90 ± 10 °, an included angle between the third abutting surface 41211 and the fourth abutting surface 41212 is 60 ± 10 °, so that the second rotating connecting member 412 has at least a rotation range of 10 ° to 50 ° relative to the first rotating connecting member 42, and the handle body 41 has a certain adjustment space.

In one embodiment of the present invention, referring to fig. 18 and 19, the central rotation axes of the first rotating connecting member 42 and the second rotating connecting member 412 are rotation axes, and the rotation axes are perpendicular to the length direction of the hand holding portion 411. When the hand is held by the hand grip 411, a direction perpendicular to the four fingers is a longitudinal direction of the hand grip 411. Therefore, when the handle body 41 rotates relative to the first rotating connecting piece 42, the rotation of the wrist can be compensated, so that the arm and the hand can be kept on the same straight line as much as possible without the force of the wrist.

In one embodiment of the present invention, referring to fig. 19, the outer wall of the first rotational connector 42 has a stepped configuration 420. It is also contemplated that the outer wall of the first rotational connection 42 may be cut to provide an L-shaped configuration of material to form the step configuration 420 described above. The step structure 420 has a bottom surface and a side surface, which intersect each other, the bottom surface is a first abutting surface 421, the side surface is a second abutting surface 422, and an included angle between the first abutting surface 421 and the second abutting surface 422 may be 90 ° or close to 90 °. The first abutting surface 421 and the second abutting surface 422 can be formed by arranging the step structure 420 on the outer wall of the first rotating connecting piece 42, so that the structure of the first rotating connecting piece 42 is simple, and the processing and the forming are convenient.

In one embodiment of the present invention, referring to fig. 19 and 20, the second rotating connecting member 412 has an L-shaped receiving space 4120, and the first rotating connecting member 42 is located in the L-shaped receiving space 4120, so that the handle structure 400 has a smaller thickness and a more compact structure. The inner wall of the L-shaped housing space 4120 faces the first contact surface 421 and the second contact surface 422, and the inner wall of the L-shaped housing space 4120 includes a third contact surface 41211 and a fourth contact surface 41212, so that the first contact surface 421 can be brought into contact with the third contact surface 41211, and the second contact surface 422 can be brought into contact with the fourth contact surface 41212.

In one embodiment of the present invention, referring to fig. 20, the second rotating connecting member 412 includes a handle connecting portion 4121 and a rotating shaft connecting portion 4122, one end of the handle connecting portion 4121 is fixedly connected to the hand grip portion 411, and the other end of the handle connecting portion 4121 has a third abutting surface 41211 and a fourth abutting surface 41212. The third abutting surface 41211 may be an end wall of the handle connecting portion 4121, and the fourth abutting surface 41212 may be a side wall of the handle connecting portion 4121 near the end. The side wall of the rotation shaft connecting portion 4122 is connected to the side wall of the handle connecting portion 4121, and the end wall of the handle connecting portion 4121 away from the grip portion 411 and the side wall of the rotation shaft connecting portion 4122 form the above-mentioned L-shaped accommodating space 4120.

The grip 411, the handle connecting portion 4121 and the shaft connecting portion 4122 may be integrally formed.

In one embodiment of the present invention, referring to fig. 19, the handle structure 400 further includes a rotating fixing member 43, and the rotating fixing member 43 is used for connecting the first rotating connecting member 42 and the rotating shaft connecting portion 4122, so that the handle body 41 is rotatably connected to the first rotating connecting member 42. The rotating fixing member 43 may be a pin or the like. Specifically, the first rotary connecting member 42 is provided with a first shaft hole 423, one end of the rotating shaft connecting portion 4122, which is away from the handle connecting portion 4121, is provided with a second shaft hole 41220, the first shaft hole 423 faces the second shaft hole 41220, and the rotary fixing member 43 passes through the first shaft hole 423 and the second shaft hole 41220, so as to realize the rotary connection between the handle body 41 and the first rotary connecting member 42.

In one embodiment of the present invention, referring to fig. 21 and 22, the exercise apparatus further includes an exercise base structure 500, wherein the exercise base structure 500 is detachably connected to the first rod 200 and/or the second rod 300. For convenience of description, the exercise base structure 500 is detachably connected to the first rod 200, so that the exercise device can be used in a more diversified manner, and the exercise base structure 500 has a wider application range.

Referring to fig. 21, a damping mechanism 200 is mounted on the exercise base structure 500. Referring to fig. 22, two damping mechanisms 200 are mounted on the exercise base structure 500. Accordingly, the number of the first bars 200 and the second bars 300 is also two, and the two first bars 200 are respectively connected to different link structures of the same or the same exercise base structure 500. The ends of the two second rods 300 remote from the damping mechanism 100 are connected to each other by a connecting shaft 600. When the body-building person exercises, the user can hold the connecting shaft 600 with both hands to rotate the second rod 300 relative to the first rod 200, so as to achieve the purpose of body building. In the embodiment of fig. 22, one of the damping mechanisms 100 can be detached, the corresponding first rod 200 and second rod 300 can be detached, and the handle 500 can be added, so as to form the exercise apparatus in fig. 21. Thus, by designing the exercise chassis structure 500 to be the above-described structure, the use of the exercise apparatus can be made more versatile.

Referring to fig. 23 to 25, the exercise base plate structure 500 includes a base 51, an elastic member 53, a movable rod 52 and a fixed rod 54. The movable lever 52 is movable relative to the base 51, and the fixed lever 54 is fixedly coupled to the base 51. Both ends of the elastic member 53 are respectively in contact with the base 51 and the movable lever 52, and one end of the movable lever 52 is in contact with one end of the fixed lever 54 by the elastic force of the elastic member 53. The movable rod 52 and the fixed rod 54 form a link structure for detachable connection with the first link 200. Specifically, the first connecting rod 200 may be sleeved on the movable rod 52, the first connecting rod 200 may be sleeved on the fixed rod 54, and the first connecting rod 200 may also be partially sleeved on the movable rod 52 and partially sleeved on the fixed rod 54.

When the first connecting rod 200 is installed, the movable rod 52 moves, the elastic piece 53 is gradually compressed, the movable rod 52 is gradually separated from the fixed rod 54, the sleeve ring on the first connecting rod 200 is sleeved on the fixed rod 54 or the movable rod 52, then the movable rod 52 is released, and under the action of the restoring force of the elastic piece 53, the movable rod 52 is restored to be abutted against the fixed rod 54, so that the first connecting rod 200 is stably installed on the connecting rod structure. When the first link 200 is detached, the movable lever 52 is moved, the elastic member 53 is gradually compressed, the movable lever 52 is gradually separated from the fixed lever 54, the first link 200 is detached from the fixed lever 54 or the movable lever 52, the movable lever 52 is released, and the movable lever 52 is restored to be in abutment with the fixed lever 54 by the restoring force of the elastic member 53. Thus, the exercise base structure 500 of this embodiment is very convenient to install, remove, and replace.

In one embodiment of the present invention, one of the movable rod 52 and the stationary rod 54 is a hollow rod, and the other of the movable rod 52 and the stationary rod 54 is inserted into the hollow rod. In this way, the movable rod 52 and the fixed rod 54 are circumferentially positioned to each other, so as to prevent the connecting rod structure from shaking, and also to enhance the bending moment resistance of the connecting rod structure. Specifically, the movable lever 52 is a hollow lever, and one end of the movable lever 52 facing the fixed lever 54 is open, and when no external force acts on the movable lever 52, the fixed lever 54 is inserted into the inside of the movable lever 52 and abuts against the inner wall of the movable lever 52. Alternatively, the fixed rod 54 is a hollow rod, and one end of the fixed rod 54 facing the movable rod 52 is disposed to be open, and when no external force acts on the movable rod 52, the movable rod 52 is inserted into the fixed rod 54 and abuts against the inner wall of the fixed rod 54.

In one embodiment of the present invention, referring to fig. 24, the susceptor 51 includes a base plate 511 and a cover plate 512, the cover plate 512 is fixed on the base plate 511, and the cover plate 512 is detachably or fixedly connected with the base plate 511. One end of the fixed rod 54 and one end of the movable rod 52 are both located inside the cover plate 512, the end of the fixed rod 54 can be fixed on the substrate 511 or the cover plate 512, and the movable rod 52 is disposed through the cover plate 512 and can slide relative to the cover plate 512. The other end of the fixed rod 54 (exposed to the cover plate 512) and the other end of the movable rod 52 (exposed to the cover plate 512) are disposed opposite to each other, and when the movable rod 52 is not subjected to an external force, the two ends abut against each other.

Optionally, referring to fig. 26, a first hollow hole 5121 is formed in the cover plate 512, a first avoiding hole 5123 and a second avoiding hole 5124 are formed in a hole wall of the first hollow hole 5121, the first avoiding hole 5123 is opposite to the second avoiding hole 5124, one end of the movable rod 52 is located inside the cover plate 512, the other end of the movable rod 52 passes through the first avoiding hole 5123 to the first hollow hole 5121, one end of the fixed rod 54 is located inside the cover plate 512, and the other end of the fixed rod 54 passes through the second avoiding hole 5124 to the first hollow hole 5121. The fixed rod 54 and the movable rod 52 abut against each other in a space surrounded by the first hollow hole 5121. The first hollow hole 5121 is formed in the cover plate 512, so that the movable rod 52 and the fixed rod 54 can be fixed or positioned in the cover plate 512, and can be abutted in the range of the first hollow hole 5121, and a fixing structure does not need to be designed for the movable rod 52 and the fixed rod 54 respectively.

Optionally, the cover plate 512 is circular, and the first hollow hole 5121 is an annular inner hole of the cover plate 512.

In one embodiment of the present invention, referring to fig. 24, the movable rod 52 has a positioning step 521 at an end inside the cover plate 512, and the positioning step 521 is used for abutting against an inner wall of the cover plate 512. Specifically, the inner wall of the cover plate 512 at the first avoiding hole 5123 abuts against the positioning step 521, so that the movable rod 52 cannot fall off from the cover plate 512, and the movable rod 52 is axially limited.

The cover plate 512 is provided with a first accommodating cavity 5125 for accommodating the movable rod 52 therein, one end of the first accommodating cavity 5125 is a first avoiding hole 5123, the movable rod 52 penetrates out of the first avoiding hole 5123, and the inner wall of the first accommodating cavity 5125 has guiding and positioning effects on the movable rod 52. The cover plate 512 further has a second accommodating cavity 5126 for accommodating the fixing rod 54 therein, one end of the second accommodating cavity 5126 is a second avoiding hole 5124, one end of the fixing rod 54 penetrates through the second avoiding hole 5124, and the other end of the fixing rod 54 can penetrate through the cover plate 512 to be fixedly connected to the substrate 511.

In one embodiment of the present invention, referring to fig. 23 and 24, the exercise base plate structure 500 further includes a shifting plate 55, the shifting plate 55 is fixedly connected to the movable rod 52, and the shifting plate 55 is disposed to facilitate manual control of the movable rod 52. The surface of the shifting piece 55 can be provided with structures such as patterns, anti-skid patterns and the like, so that the shifting piece 55 can be conveniently shifted. The shifting sheet 55 is arranged on the side of the cover plate 512 opposite to the base plate 511, that is, the shifting sheet 55 is arranged on the outer side of the cover plate 512, which facilitates manual control.

Optionally, one end of the first accommodating cavity 5125 is a first avoiding hole 5123, and the first accommodating cavity 5125 is formed by penetrating through the cover plate 512, so that the side surface of the first accommodating cavity 5125 is hollowed out, and the shifting piece 55 and the movable rod 52 are conveniently and fixedly connected. Specifically, the paddle 55 and the movable lever 52 may be fixedly connected by a fixing member such as a screw.

In one embodiment of the present invention, referring to fig. 26, a guide groove 5122 is formed on a side of the cover plate 512 facing away from the base plate 511, the guide groove 5122 is used for accommodating the pulling piece 55, and the guide groove 5122 can guide the pulling piece 55 during the movement of the pulling piece 55. Since the pick 55 is fixedly connected with the movable rod 52, the moving directions of the pick 55 and the movable rod 52 are the same, and the length direction of the guide groove 5122 is also the same as the moving direction of the movable rod 52.

In one embodiment of the present invention, referring to fig. 24, the substrate 511 is provided with a second hollow hole 5110, and the second hollow hole 5110 is opposite to the first hollow hole 5121, so that the center of the base 51 is hollow, and thus, when an appliance is installed, even if the structure of the connection portion between the appliance and the connecting rod structure is large, the connection portion will not collide with the substrate 511, so that a large installation space is reserved for installation of the appliance. The first and second hollowed-

out holes

5121 and 5110 may be identical in size and shape.

In one embodiment of the present invention, referring to fig. 24 and 25, a guide rod 56 is fixed on the base 51, and one end of the guide rod 56 is fixed on the base 51. When the susceptor 51 includes a base plate 511 and a cover plate 512, one end of the guide bar 56 may be fixed to the base plate 511 or the cover plate 512. The elastic member 53 is sleeved on the guide rod 56, a first end of the elastic member 53 abuts against the base 51 or a stop step of the guide rod 56, and a second end of the elastic member 53 abuts against the movable rod 52. The guide rod 56 is provided to position and guide the elastic member 53, so that the elastic member 53 can be deformed only in its expansion and contraction direction, and is prevented from being bent and bouncing in other directions. The elastic member 53 may be selected as a spring. The guide rod 56 can extend through the cover plate 512 into the first accommodating cavity 5125 of the cover plate 512, so that part of the guide rod 56 and part of the movable rod 52 are located in the first accommodating cavity 5125.

Optionally, the movable rod 52 is cylindrical, and the elastic member 53 and the guide rod 56 both extend into the movable rod 52, so that the movable rod 52 moves more stably when the elastic member 53 extends and contracts.

In other embodiments, the base 51 is provided with a guide hole, one end of the elastic element 53 abuts against the inner wall of the guide hole, and the elastic element 53 is located in the guide hole, and the inner wall of the guide hole can also play a role in positioning and guiding the elastic element 53.

Optionally, the number of the base plates 511 is one, and the number of the cover plates 512, the elastic members 53, the movable rods 52 and the fixed rods 54 is plural, so that the exercise base plate structure 500 has a plurality of link structures, and each link structure can be detachably mounted with a corresponding apparatus.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A damping mechanism, characterized by: but including two fluid drive structure, power push pedal, flow control valve, drive assembly and relative motion's first connecting piece and second connecting piece, two separate between the fluid drive structure and be equipped with the power push pedal, and two the fluid drive structure passes through the flow control valve intercommunication, first connecting piece connect in drive assembly's power input end, the power push pedal connect in drive assembly's power take off end, second connecting piece and two the stiff end fixed connection of fluid drive structure, drive assembly be used for with the rotary motion output of first connecting piece does the linear motion of power push pedal.

2. The damping mechanism of claim 1, wherein: the transmission assembly comprises a transmission screw rod and a threaded sleeve, the threaded sleeve is in threaded connection with the transmission screw rod, the first connecting piece is fixedly connected with the transmission screw rod, and the power push plate is fixedly connected with the threaded sleeve.

3. The damping mechanism of claim 2, wherein: the fluid drive structure includes first end plate, second end plate and folding unit, the both ends of folding unit connect respectively in first end plate with the second end plate, two the second end plate all with power push pedal fixed connection, the both ends of transmission lead screw rotate to be supported in two first end plate.

4. The damping mechanism of claim 3, wherein: damping mechanism still includes the guide bar and the cover is located the uide bushing of guide bar, the both ends of guide bar are fixed in two respectively first end plate, just the guide bar with the transmission lead screw is parallel, the uide bushing with power push pedal fixed connection.

5. The damping mechanism of any one of claims 1 to 4, wherein: and one side of the fluid driving structure, which is far away from the power push plate, is communicated with a fluid pipe, and the flow regulating valve is communicated with the two fluid driving structures through the fluid pipe.

6. The damping mechanism of claim 5, wherein: the flow control valve comprises a first linear driving mechanism, a pressing block, a hose for fluid to pass through and a first fixing seat, the first linear driving mechanism outputs linear motion, the pressing block is fixed at the motion end of the first linear driving mechanism, the pressing block is used for extruding the hose to change the area of the cross section of the channel in the hose, and the hose is arranged between the first fixing seat and the pressing block.

7. The damping mechanism as recited in claim 6, wherein: the cross section of the hose is oval, and the minor axis of the oval is parallel to the moving direction of the pressing block.

8. The damping mechanism as recited in claim 7, wherein: the intersection of the inner wall of the hose and the long axis of the ellipse is provided with an edge angle, and the wall thickness of the hose at the edge angle is the largest.

9. The damping mechanism of claim 5, wherein: the flow control valve comprises a second linear driving mechanism, a plug, a pipeline and a sealing structure, wherein the plug is driven by the second linear driving mechanism, the pipeline is used for allowing fluid to pass through, and the sealing structure is variable in volume.

10. The damping mechanism as recited in claim 9, wherein: the sealing structure comprises a folding tube capable of being folded and unfolded and an end plate connected to one end of the folding tube, one end of the plug is fixed to the end plate, the other end of the plug is used for extending into the pipeline, and one end of the end plate is connected to the periphery of the extending inlet in a sealing mode.

11. The damping mechanism as recited in claim 9, wherein: the end cap with stretch into between the mouth sealing connection, the periphery wall of end cap is provided with the pressure release groove, the pressure release groove is used for the intercommunication the pipeline with the seal chamber.

12. The damping mechanism as recited in claim 11, wherein: the periphery of the stretching inlet is provided with a sealing element, the plug comprises a connecting section and a plugging section used for stretching into the pipeline, the pressure relief groove is formed in the plugging section, a stopping step is formed at the connecting part of the connecting section and the plugging section, and the stopping step is used for pressing the sealing element.

13. The damping mechanism of any one of claims 1 to 4, wherein: the flow regulating valve is arranged at the power push plate, and the adjacent sides of the two fluid driving structures are communicated through the flow regulating valve.

14. The damping mechanism as recited in claim 13, wherein: the flow regulating valve comprises two clamping plates and a valve core structure arranged between the two clamping plates, through holes are formed in the two clamping plates, the through holes in the two clamping plates are opposite to each other, the valve core structure comprises a rotating structure capable of rotating, the rotating structure is used for gradually shielding the through holes in the rotating process, and a joint surface between the two clamping plates and the rotating structure is arranged in a sealing mode.

15. The damping mechanism as recited in claim 14, wherein: and the rotating structure is provided with a flow regulating hole which is used for being overlapped with the through hole.

16. The damping mechanism as recited in claim 14, wherein: the valve core structure further comprises a hinge for shielding the through hole, the rotating structure is provided with a guide groove, one end of the hinge slides along the extending direction of the guide groove, the other end of the hinge is hinged to the clamping plates, and the joint surfaces between the two clamping plates and the valve core structure are arranged in a sealing mode.

17. The damping mechanism as recited in claim 14, wherein: a first annular bulge is convexly arranged on one side, facing the valve core structure, of the clamping plate, the rotating structure is arranged in the first annular bulge, and a first sealing ring is arranged between the inner peripheral wall of the first annular bulge and the outer peripheral wall of the rotating structure; the clamp plate is provided with a boss structure protruding towards one side of the valve core structure, and a second sealing ring is arranged on the outer peripheral wall of the boss structure.

18. The damping mechanism as recited in claim 14, wherein: the valve core structure further comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the clamping plate, the other end of the first connecting rod is hinged to the second connecting rod, one end, far away from the first connecting rod, of the second connecting rod is fixedly connected with the rotating structure, and the first connecting rod is a telescopic rod.

19. The damping mechanism as recited in claim 18, wherein: the clamp plate is provided with a first annular bulge and a second annular bulge in a protruding mode, the clamp plate faces one side of the valve core structure, the rotating structure is arranged in the first annular bulge, the second annular bulge is arranged outside the first annular bulge, an annular groove is formed between the first annular bulge and the second annular bulge, a third sealing ring is arranged in the annular groove, and avoidance notches for the second connecting rod to stretch out are formed in the first annular bulge and the second annular bulge.

20. Exercise equipment, its characterized in that: the damper mechanism of any one of claims 1-19, further comprising a first rod and a second rod, the first rod being coupled to the first link and the second rod being coupled to the second link.

21. The exercise apparatus of claim 20, wherein: body-building equipment still includes the hand (hold) structure, the hand (hold) structure include the hand (hold) body and be used for with the first connecting piece that rotates that first member and/or second member are connected, the hand (hold) body including hold and with hold the second of holding fixed connection and rotate the connecting piece, first rotate the connecting piece with the second rotates the connecting piece and rotates the connection, first rotate the connecting piece and have first butt face and second butt face, the second rotates the connecting piece and has third butt face and fourth butt face, first butt face with contained angle between the second butt face is greater than the third butt face with contained angle between the fourth butt face makes first rotate the connecting piece with when the second rotates the connecting piece relative rotation, the third butt face with the mutual butt of first butt face, perhaps the fourth butt face with the mutual butt of second butt face.

22. The exercise apparatus of claim 21, wherein: the third abutting surface and the fourth abutting surface are connected through a transition surface, and the transition surface is an arc surface, a plane, a combination of the plane and the arc surface or a plurality of planes connected in sequence.

23. The exercise apparatus of claim 21, wherein: the outer wall of the first rotating connecting piece is provided with a step structure, the bottom surface of the step structure is the first abutting surface, and the side surface of the step structure is the second abutting surface.

24. The exercise apparatus of claim 20, wherein: body-building equipment still includes body-building bottom plate structure, body-building bottom plate structure include base, elastic component, movable rod and fixed connection in the dead lever of base, the both ends of elastic component respectively the butt in the base with the movable rod, the movable rod be in under the effect of elastic component with the mutual butt of dead lever forms link structure, link structure be used for with first member and/or the connection can be dismantled to the second member, the flexible direction of elastic component with link structure's length direction is the same.

25. The exercise apparatus of claim 24, wherein: the base includes the base plate and is fixed in apron on the base plate, first fretwork hole has been seted up to the apron, first hole and the second hole of dodging have been seted up to the pore wall of first fretwork hole, the movable rod passes first hole setting of dodging, the dead lever passes the second hole setting of dodging makes the movable rod with the dead lever is just right mutually.