CN216456690U - Hydraulic load device - Google Patents

Hydraulic load device Download PDF

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Publication number
CN216456690U
CN216456690U CN202122544209.2U CN202122544209U CN216456690U CN 216456690 U CN216456690 U CN 216456690U CN 202122544209 U CN202122544209 U CN 202122544209U CN 216456690 U CN216456690 U CN 216456690U
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valve body
valve
piston
spring
load device
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CN202122544209.2U
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Chinese (zh)
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王浩
陈辅民
吴林伟
刘凤亮
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Shanghai Feiren Network Technology Co ltd
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Shanghai Feiren Network Technology Co ltd
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Abstract

The present invention provides a hydraulic load device including: the first valve comprises a first valve body and first valve liquid, and the first valve liquid is filled in the first valve body; the pipeline assembly, one end of the pipeline assembly communicates with first valve; the second valve is communicated with the other end of the pipeline assembly and comprises a second valve body, second valve liquid, a second spring and a second valve body piston, one end of the second valve body piston extends into the second valve body from the top of the valve body and is movably connected with the second valve body, the second valve liquid is filled between the bottom of the second valve body and the second valve body piston, and the second spring is respectively connected with the bottom of the second valve body and one end of the second valve body piston; the driving wheel is movably connected with the other end of the piston of the second valve body; the speed reducer is connected with the driving wheel; one end of the transmission shaft of the speed reducer is connected with the speed reducer.

Description

Hydraulic load device
Technical Field
The utility model relates to fitness equipment, in particular to a hydraulic load device.
Background
At present, with the remarkable improvement of living standard, people are more concerned about the living quality and the health condition of the body. Especially, in the white-collar class of cities, people sit for a long time in the working time, and are lack of exercise opportunities, so that the constitution is seriously weakened. Therefore, the exercise by using the indoor fitness equipment becomes an effective way for improving the physical quality of people. Wherein, the zipper type fitness equipment can well help the user to exercise the arms, the shoulders and other parts. Most of the existing zipper type fitness equipment are resistance devices such as a balancing weight and the like. The structure of the device is relatively complex, and the occupied area is large. In addition, such devices with counterweights are basically used for gear adjustment.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: aiming at the technical defects of complex structure, large floor area and complex gear adjustment of pull chain type fitness equipment in the prior art, the hydraulic loading device is provided.
In order to solve the above technical problem, the present invention provides a hydraulic load device, including: the first valve comprises a first valve body and first valve liquid, and the first valve liquid is filled in the first valve body; the pipeline assembly, one end of the pipeline assembly communicates with first valve; the second valve is communicated with the other end of the pipeline assembly and comprises a second valve body, second valve liquid, a second spring and a second valve body piston, one end of the second valve body piston extends into the second valve body from the top of the valve body and is movably connected with the second valve body, the second valve liquid is filled between the bottom of the second valve body and the second valve body piston, and the second spring is respectively connected with the bottom of the second valve body and one end of the second valve body piston; the driving wheel is movably connected with the other end of the piston of the second valve body; the speed reducer is connected with the driving wheel; one end of the reducer transmission shaft is connected with the reducer.
The hydraulic load device according to the present invention may further include: the pipeline assembly comprises an inflow pipe, a return pipe, a throttle valve and a one-way valve; the two ends of the inflow pipe are respectively communicated with the first valve body and the second valve body, the throttle valve is arranged on the inflow pipe, the two ends of the return pipe are respectively communicated with the second valve body and the second valve body, and the one-way valve is arranged on the return pipe.
The hydraulic load device according to the present invention may further include: the bottom of the first valve body is provided with a first flow inlet and a first flow outlet, the bottom of the second valve body is provided with a second flow outlet and a second flow return port, the two ends of the flow inlet pipe are respectively communicated with the first flow inlet and the second flow outlet, and the two ends of the flow return pipe are respectively communicated with the first flow outlet and the second flow return port.
The hydraulic load device according to the present invention may further include: the check valve comprises a check valve inlet, a check valve outlet, a check valve ball and a check valve spring, the check valve inlet is close to the first valve body, the check valve outlet is close to the valve body, a channel is formed between the check valve inlet and the check valve outlet, the spring is arranged in the channel, and the check valve ball is arranged at one end, close to the check valve inlet, of the check valve spring.
The hydraulic load device according to the present invention may further include: the throttle valve is digital throttle valve, and digital throttle valve includes throttle valve body and spiral ware, and the both sides of throttle valve body all are provided with exit, and the top that the one end of spiral ware passed throttle valve body is stretched into in the throttle valve body, spiral ware and throttle valve body swing joint.
The hydraulic load device according to the present invention may further include: the first valve further comprises a first spring and a first valve body piston, one end of the first spring is connected with the top of the first valve body, one end of the first valve body piston is connected with the other end of the first spring, and the other end of the first valve body piston is in liquid contact with the first valve.
The hydraulic load device according to the present invention may further include: the side of the first valve body piston contacts with the inner side wall of the first valve body, and a first sealing ring is arranged between the side and the inner side wall.
The hydraulic load device according to the present invention may further include: the other end of the piston of the second valve body is provided with a sawtooth strip which is meshed with a gear on the driving wheel.
The hydraulic load device according to the present invention may further include: the second valve body piston is provided with a second sealing ring, and the second sealing ring is arranged between one end of the second valve body piston inserted into the second valve body and the inner side wall of the second valve body.
The hydraulic load device according to the present invention may further include: the other end of the transmission shaft of the speed reducer is connected with a turntable, and a pull rope is connected outside the turntable.
The utility model has the beneficial effects that:
in the hydraulic loading apparatus of the present invention, the first valve includes a first valve body in which the first valve liquid is filled. The second valve includes a second valve body, a second valve fluid, a second spring, and a second valve body piston. One end of the second valve body piston penetrates through the top of the second valve body and extends into the second valve body, and the second valve body piston is movably connected with the second valve body. And a second valve liquid is filled between the bottom of the second valve body and the piston of the second valve body. The second spring is positioned in the second valve liquid, and two ends of the second spring are connected with the bottom of the second valve body and one end of the piston of the second valve body. The first valve and the second valve are in communication through a conduit assembly. The driving wheel is respectively connected with the other end of the piston of the second valve body and the speed reducer. The speed reducer is also connected with one end of a transmission shaft of the speed reducer.
Based on the structure, when a user uses the hydraulic load device, the other end of the transmission shaft of the speed reducer is pulled, force is transmitted to the speed reducer through the transmission shaft of the speed reducer, then the user can form a larger torque twisting transmission wheel after passing through the accelerator, and the other end of the piston of the second valve body is driven to move through the transmission wheel. The movement of the piston of the second valve body enables one end of the piston extending into the second valve body to move inwards to compress the second valve liquid, so that the second valve liquid flows to the first valve body through the pipeline assembly, and when the second valve liquid flows to the first valve body, resistance generated on the pipeline assembly becomes resistance pulled by a user, and an exercise effect is achieved.
When a user finishes pulling, liquid in the first valve body flows back into the second valve body under the action of the return spring of the second spring, and then the piston of the second valve body is driven to move, so that the driving wheel rotates, the speed reducer reversely runs, and the whole hydraulic load device is reset. The hydraulic load device obtains the counter force of hydraulic pressure in the pulling and resetting processes, and can be applied to many sports equipment as a load replacement device. In addition, the hydraulic device of the hydraulic loading device has high energy density, and has the advantages of compact structure and small volume compared with a resistance device such as a driven balancing weight and the like.
In addition, the pipeline assembly in the hydraulic load device comprises an inflow pipe, a return pipe, a throttle valve and a one-way valve. The inlet pipe and the return pipe are both used for communicating the first valve body and the second valve body. The throttle valve is arranged on the inflow pipe, and the one-way valve is arranged on the return pipe. Two ends of the flow inlet pipe are respectively communicated with a first flow inlet of the first valve body and a second flow outlet of the second valve body; two ends of the return pipe are respectively communicated with the first outflow port of the first valve body and the second return port of the second valve body, so that the liquid enters the first valve body and flows back to the second valve body through two different passages. Moreover, the throttle valve is arranged on the flow inlet pipe, and the stepless load adjusting function of pulling exercise of a user can be realized through the arrangement of the throttle valve.
In addition, the one-way valve is arranged on the return pipe, and the one-way valve is arranged so that when the hydraulic load device is reset, liquid in the first valve body only flows back to the second valve body through the return pipe.
In addition, the throttle valve is a digital throttle valve, and the digital load adjusting function can be realized.
In addition, still be provided with first spring and first valve body piston in the first valve body, the both ends of first spring are connected with the top of first valve body, the one end of first valve body piston respectively, and the other end and the first valve liquid contact of first valve body piston make liquid when flowing into in the first valve body like this, can promote the motion of first valve body piston to compress first spring. Based on this structure can let hydraulic load device when reseing, first spring cooperation second spring resets fast.
In addition, be provided with first sealing washer between first valve body piston and the first valve body lateral wall, be provided with the second sealing washer between second valve body piston and the second valve body lateral wall, can prevent like this that first valve liquid, second valve liquid from entering into the headspace of first valve body, second valve body, avoid first valve, second valve to lose regulation and control ability.
Drawings
Fig. 1 is a schematic structural view of a hydraulic loading apparatus of the present embodiment;
fig. 2 is a schematic structural view of the hydraulic loading apparatus of the present embodiment;
fig. 3 is a sectional view of the hydraulic loading apparatus of the embodiment;
FIG. 4 is a sectional view of the first valve of the present embodiment;
FIG. 5 is a sectional view of the second valve of the present embodiment;
FIG. 6 is a sectional view of the throttle valve of the present embodiment;
FIG. 7 is a cross-sectional view of the check valve of the present embodiment;
fig. 8 is a schematic diagram of the hydraulic loading apparatus of the present embodiment.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, 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 utility model and are not intended to limit the utility model.
As shown in fig. 1 to 7, the hydraulic load device of the present embodiment includes a first valve 10, a second valve 20, a pipe assembly 30, a transmission wheel 40, a reducer 50, a reducer transmission shaft 60, and a turntable 70.
The first valve 10 includes a first valve body 11, a first valve liquid 12, a first valve body piston 13, a first seal ring 14, and a first spring 15.
The first valve body 11 is provided with a first inlet 16 and a first outlet 17. The first inlet 16 and the first outlet 17 are arranged side by side at the bottom of the first valve body 11. The first valve body piston is located in the first valve body 11, and the side surface of the first valve body piston is in contact with the inner side wall of the first valve body 11. The first seal ring 14 is provided between the first valve body piston 13 and the inner side wall of the first valve body 11.
A first valve liquid 12 is filled between the bottom of the first valve body 11 and the first valve body piston 13. One end of the first valve body piston 13 is in contact with the first valve liquid 12.
One end of the first spring 15 contacts the other end of the first valve body piston 13, and the other end is connected to the top of the first valve body 11.
The second valve 20 includes a second valve body 21, a second valve liquid 22, a second valve body piston 23, a second seal ring 24, and a second spring 25.
The second valve body 20 is provided with a second outlet port 26 and a second return port 27. The second outlet port 26 and the second return port 27 are distributed at the bottom of the second valve body 20.
One end of the second valve body piston 23 projects into the second valve body 21 from the top of the second valve body 21. One end of the piston 23 extending into the second valve body contacts with the inner side wall of the second valve body 21, and a second sealing ring 24 is arranged between the inner side walls of the second valve body 21.
A second valve liquid 22 is filled between the bottom of the second valve body 21 and one end of the second valve body piston 23. A second spring 25 is located within the second valve liquid 22. One end of the second spring 25 is connected to the bottom of the second valve body 21, and the other end is connected to one end of the second valve body piston 23.
The other end of the second valve body piston 23 is located outside the second valve body 21. A saw tooth rack 28 is provided on the other end of the second valve body piston 23.
The second valve liquid 22 is the same liquid as the first valve liquid 12.
The piping assembly 30 is used to communicate the first valve 10 and the second valve 20, and includes an inflow pipe 31, a return pipe 32, a throttle valve 33, and a check valve 34.
The two ends of the inlet pipe 31 are respectively communicated with the first inlet 16 at the bottom of the first valve body 11 and the second outlet 26 at the bottom of the second valve body 21.
Both ends of the return pipe 32 communicate with the first outlet port 17 at the bottom of the first valve body 11 and the second return port 27 at the bottom of the second valve body 21, respectively.
The throttle valve 33 is provided on the inflow pipe 31. The throttle valve 33 is a digital throttle valve. The digital throttle valve includes a throttle body 331 and a screw 332. The top of the throttle body 331 is provided with an internal thread, and one end of the screw 332 is inserted from the top of the throttle body 331 and extends deep into the throttle body 331. The screw 332 is movably connected with the throttle body 331 through an internal thread at the top of the throttle body 331. When the screw 332 is completely screwed into the throttle body 331, one end of the screw 332 inserted into the throttle body 331 contacts the bottom of the throttle body 331. The screw 332 is screwed out upward, and as the screw 332 is screwed out upward, the distance between one end of the screw 332 inserted into the throttle body 331 and the bottom of the throttle body 331 is increased, the flow rate of the liquid flowing through the throttle body 331 is increased.
Both sides of the throttle body 331 are provided with an inlet and an outlet. The level of the inlet and outlet of the throttle body 331 near the first valve body 11 is higher than the level of the inlet and outlet of the throttle body 331 near the second valve body 21, so that the liquid generates resistance when flowing from the second valve body 21 to the first valve body 11.
A check valve 34 is provided on the return pipe 32 and includes a check valve inlet 35, a check valve outlet 36, a check valve ball 37, and a check valve spring 38. A one-way passage of the one-way valve 34 is formed between the one-way valve inlet 35 and the one-way valve outlet 36. The diameter of the check valve inlet 35 is smaller than the diameter of the check valve outlet 36.
A check valve spring 38 is disposed within the check passage. A check valve ball 37 is disposed on a check valve spring 38 at an end adjacent the check valve inlet 35.
The liquid flow direction of the check valve 34 is from the check valve inlet 35 to the check valve outlet 36. When the check valve spring 38 is in a natural unstressed state, the check valve ball 37 can abut against the check valve inlet 35 to prevent the liquid from flowing backward.
A ring of gears is arranged on the periphery of the transmission wheel 40. The transmission wheel 40 is meshed with the sawtooth rack 28 at the other end of the second valve body piston 23. By means of the rotation of the transmission wheel, the second valve body piston 23 can be driven to advance in the horizontal direction and to reverse.
A connecting shaft 51 is provided horizontally on one side of the reduction gear 50. The other end of the connecting shaft 51 is connected with the transmission wheel 40.
The decelerator driving shaft 60 is disposed along a vertical direction, and one end thereof is connected to the decelerator 50.
The turntable 70 is disposed in a horizontal direction and is connected to the other end of the reducer transmission shaft 60. The pull rope 71 is arranged outside the rotary disc 70.
As shown in fig. 8 and 3, the working principle and process of the hydraulic load device are as follows:
when a user pulls the pull rope 71 to the right, the rotating disc 70 is rotated, the force generated by the rotation of the rotating disc 70 is amplified by the speed reducer 50, and is transmitted to the transmission wheel 40, so that the transmission wheel 40 rotates counterclockwise, and the sawtooth rack 28 engaged with the transmission wheel 40 generates a horizontal movement to drive the second valve body piston 23 to move to the left, thereby squeezing the second valve liquid 22 between the bottom of the second valve body 21 and the second valve body piston 23 and the second spring 25, so that the second valve liquid 22 flows into the first valve body 11 from the second outlet 26 through the inlet pipe 31 via the digital throttle valve 33 and via the first inlet 16 at the bottom of the first valve body 11, and simultaneously, the first valve body piston 13 moves to the right, and the first spring 15 is pulled to be elongated. Wherein, due to the one-way valve 34 on the return pipe 32, the second valve liquid 22 can only flow from the inlet pipe 31 and the throttle 33 to the first valve body 11. Therefore, when pulling the pulling rope 71, the pulling force is amplified by the speed reducer 50 and the one-way conduction function of the one-way valve 4, so that the required pulling force is increased, and the effect of body building exercise is achieved for the user.
When the user releases the force, under the combined action of the first spring 15 and the second spring 25, the first valve liquid 12 in the first valve body flows from the first outlet 17 at the bottom of the first valve body 11, through the return pipe 32, the one-way valve 34, to the second return port 27 at the bottom of the second valve body 21, and then reaches the inside of the second valve body 21, so that the second valve body piston 23 is pushed to move leftwards, then the engagement of the sawtooth rack 28 causes the transmission wheel 40 to rotate, the force required by the rotation of the rotary disc 70 is reduced by the reducer 50, the pull rope 71 of the rotary disc 70 is wound back to the initial position, and the whole hydraulic loading device is reset.
In the hydraulic loading device according to the above-described embodiment, the first valve includes a first valve body in which the first valve liquid is filled. The second valve includes a second valve body, a second valve fluid, a second spring, and a second valve body piston. One end of the second valve body piston penetrates through the top of the second valve body and extends into the second valve body, and the second valve body piston is movably connected with the second valve body. And a second valve liquid is filled between the bottom of the second valve body and the piston of the second valve body. The second spring is positioned in the second valve liquid, and two ends of the second spring are connected with the bottom of the second valve body and one end of the piston of the second valve body. The first valve and the second valve are in communication through a conduit assembly. The driving wheel is respectively connected with the other end of the piston of the second valve body and the speed reducer. The speed reducer is also connected with one end of a transmission shaft of the speed reducer.
Based on the structure, when a user uses the hydraulic load device, the other end of the transmission shaft of the speed reducer is pulled, force is transmitted to the speed reducer through the transmission shaft of the speed reducer, then the user can form a larger torque twisting transmission wheel after passing through the accelerator, and the other end of the piston of the second valve body is driven to move through the transmission wheel. The movement of the piston of the second valve body enables one end of the piston extending into the second valve body to move inwards to compress the second valve liquid, so that the second valve liquid flows to the first valve body through the pipeline assembly, and when the second valve liquid flows to the first valve body, resistance generated on the pipeline assembly becomes resistance pulled by a user, and an exercise effect is achieved.
When a user finishes pulling, liquid in the first valve body flows back into the second valve body under the action of the return spring of the second spring, and then the piston of the second valve body is driven to move, so that the driving wheel rotates, the speed reducer reversely runs, and the whole hydraulic load device is reset. The hydraulic load device obtains the counter force of hydraulic pressure in the pulling and resetting processes, and can be applied to many sports equipment as a load replacement device. In addition, the hydraulic device of the hydraulic loading device has high energy density, and has the advantages of compact structure and small volume compared with a resistance device such as a driven balancing weight and the like. And the whole hydraulic load device has simple structure, easy assembly and low processing cost.
In addition, when liquid flows from the second valve body to the first valve body, the effect of amplifying the required pulling force is achieved by amplifying the pulling force through the speed reducer, the sealing effect of the one-way valve, overcoming the elastic force of the springs in the two valve body cavities and adjusting the flow of the digital throttle valve; after the user unloads the power, the required power of carousel restoration is littleer by the restoring force that the reduction gear reduces, the one-way conduction effect of check valve, the restoring force of two springs. Moreover, the whole process is completed only by the spring and the throttle valve, so that the process is simple and the principle is easy to understand.
In addition, the pipeline assembly in the hydraulic load device comprises an inflow pipe, a return pipe, a throttle valve and a one-way valve. The inlet pipe and the return pipe are both used for communicating the first valve body and the second valve body. The throttle valve is arranged on the inflow pipe, and the one-way valve is arranged on the return pipe. Two ends of the flow inlet pipe are respectively communicated with a first flow inlet of the first valve body and a second flow outlet of the second valve body; two ends of the return pipe are respectively communicated with the first outflow port of the first valve body and the second return port of the second valve body, so that the liquid enters the first valve body and flows back to the second valve body through two different passages. Moreover, the throttle valve is arranged on the flow inlet pipe, and the stepless load regulation function of pulling exercise of a user can be realized through the arrangement of the throttle valve. Moreover, through the cooperation of check valve and choke valve, control the flow direction of liquid for liquid can only flow into from the choke valve when second valve body piston promotes, and it is great to promote required power, and when second valve body piston resets, choke valve and check valve combined action again, make liquid get back to in the second valve body fast, let second valve body piston reset.
In addition, the one-way valve is arranged on the return pipe, and the one-way valve is arranged so that when the hydraulic load device is reset, liquid in the first valve body only flows back to the second valve body through the return pipe.
In addition, the throttle valve is a digital throttle valve, and the digital load adjusting function can be realized. The amount of liquid flowing through the spiral device is controlled by the screwing-out size of the spiral device, so that the application range is wide, and the requirements of most users can be met.
In addition, still be provided with first spring and first valve body piston in the first valve body, the both ends of first spring are connected with the top of first valve body, the one end of first valve body piston respectively, and the other end and the first valve liquid contact of first valve body piston make liquid when flowing into in the first valve body like this, can promote the motion of first valve body piston to compress first spring. Based on this structure can let hydraulic load device when reseing, first spring cooperation second spring resets fast.
In addition, be provided with first sealing washer between first valve body piston and the first valve body lateral wall, be provided with the second sealing washer between second valve body piston and the second valve body lateral wall, can prevent like this that first valve liquid, second valve liquid from entering into the headspace of first valve body, second valve body, avoid first valve, second valve to lose regulation and control ability.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their full equivalents, the present application is intended to include such modifications and variations.

Claims (10)

1. A fluid load device, comprising:
the first valve comprises a first valve body and first valve liquid, and the first valve liquid is filled in the first valve body;
a conduit assembly, one end of the conduit assembly being in communication with the first valve;
the second valve is communicated with the other end of the pipeline assembly and comprises a second valve body, a second valve liquid, a second spring and a second valve body piston, one end of the second valve body piston extends into the second valve body from the top of the valve body and is movably connected with the second valve body, the second valve liquid is filled between the bottom of the second valve body and the second valve body piston, and the second spring is respectively connected with the bottom of the second valve body and one end of the second valve body piston;
the driving wheel is movably connected with the other end of the piston of the second valve body;
the speed reducer is connected with the driving wheel;
and one end of the speed reducer transmission shaft is connected with the speed reducer.
2. A hydraulic load device as defined in claim 1, wherein:
the pipeline assembly comprises an inflow pipe, a return pipe, a throttle valve and a one-way valve;
two ends of the inflow pipe are respectively communicated with the first valve body and the second valve body, the throttle valve is arranged on the inflow pipe,
two ends of the return pipe are respectively communicated with the second valve body and the second valve body, and the one-way valve is arranged on the return pipe.
3. A hydraulic load device as defined in claim 2, wherein:
the bottom of the first valve body is provided with a first inlet and a first outlet,
the bottom of the second valve body is provided with a second outflow port and a second backflow port,
two ends of the flow inlet pipe are respectively communicated with the first flow inlet and the second flow outlet,
and two ends of the return pipe are respectively communicated with the first flow outlet and the second flow outlet.
4. A hydraulic load device as defined in claim 2, wherein:
the one-way valve comprises a one-way valve inlet, a one-way valve outlet, a one-way valve ball and a one-way valve spring,
the inlet of the one-way valve is close to the first valve body, the outlet of the one-way valve is close to the second valve body, a channel is formed between the inlet of the one-way valve and the outlet of the one-way valve,
the spring is disposed within the channel and,
the check valve ball is arranged at one end, close to the inlet of the check valve, of the check valve spring.
5. A hydraulic load device as defined in claim 2, wherein:
the throttle valve is a digital throttle valve, the digital throttle valve comprises a throttle valve body and a screw,
both sides of the throttle valve body are provided with an inlet and an outlet,
one end of the screw extends into the throttle body through the top of the throttle body,
the screw is movably connected with the throttle valve body.
6. A hydraulic load device as defined in claim 1, wherein:
the first valve also comprises a first spring and a first valve body piston,
one end of the first spring is connected with the top of the first valve body,
one end of the first valve body piston is connected with the other end of the first spring, and the other end of the first valve body piston is in liquid contact with the first valve.
7. A hydraulic load device as defined in claim 6, wherein:
the side surface of the first valve body piston is contacted with the inner side wall of the first valve body,
a first sealing ring is arranged between the side face and the inner side wall.
8. A hydraulic load device as defined in claim 1, wherein:
the other end of the second valve body piston is provided with a sawtooth strip,
the sawtooth strip is meshed with the gear on the driving wheel.
9. A hydraulic load device as defined in claim 1, wherein:
a second sealing ring is arranged on the second valve body piston,
the second sealing ring is arranged between one end of the piston of the second valve body inserted into the second valve body and the inner side wall of the second valve body.
10. A hydraulic load device as defined in claim 1, wherein:
the other end of the transmission shaft of the speed reducer is connected with a rotary table, and a pull rope is connected outside the rotary table.
CN202122544209.2U 2021-10-21 2021-10-21 Hydraulic load device Active CN216456690U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122544209.2U CN216456690U (en) 2021-10-21 2021-10-21 Hydraulic load device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122544209.2U CN216456690U (en) 2021-10-21 2021-10-21 Hydraulic load device

Publications (1)

Publication Number Publication Date
CN216456690U true CN216456690U (en) 2022-05-10

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ID=81443079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122544209.2U Active CN216456690U (en) 2021-10-21 2021-10-21 Hydraulic load device

Country Status (1)

Country Link
CN (1) CN216456690U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113877132A (en) * 2021-10-21 2022-01-04 上海飞刃网络科技有限公司 Hydraulic load device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113877132A (en) * 2021-10-21 2022-01-04 上海飞刃网络科技有限公司 Hydraulic load device
CN113877132B (en) * 2021-10-21 2024-07-02 上海飞刃网络科技有限公司 Hydraulic load device

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