Connected adjustable oil cylinder

Abstract

The utility model discloses a one-piece adjustable oil cylinder which comprises oil cylinders distributed in pairs, the oil cylinders distributed in pairs are communicated through a high-pressure oil pipe, an adjusting valve is arranged on the high-pressure oil pipe, and each oil cylinder comprises a cylinder body and a piston assembly which is arranged on the cylinder body and slides back and forth. A connecting piece is arranged on the end face, corresponding to the piston assembly, of the cylinder body, the piston assembly divides the cylinder body into a first cavity and a second cavity, cylinder bases are arranged on the cylinder body corresponding to the first cavity, the two ends of the high-pressure oil pipe are arranged on the corresponding cylinder bases, and the two ends of the high-pressure oil pipe are arranged on the second cavity. And the cavities II in the corresponding oil cylinders are communicated through the high-pressure oil pipes. The pull rope is suitable for being used on fitness equipment such as a mountaineering machine which needs to be subjected to resistance when pulled, the problem that the structure is complex due to the fact that a traditional pull rope is used is solved, operation is more stable, and the use requirement can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to body -building equipment technical field especially, a kind of connected adjustable oil cylinder. BACKGROUND

[0002] The mode of extruding oil in the existing technology of body-building equipment is generally connected adjustable oil cylinder, wherein the connected adjustable oil cylinder mainly includes two oil cylinders and a conduit for communicating the oil of the two oil cylinders, and the piston of one oil cylinder extrudes oil, which then flows into the other oil cylinder through the conduit, so that the resistance between the two oil cylinders is more balanced, such as a kind of tread mill and connected adjustable damper with patent application number 2022101499651, which can be used in tread mill, and the resistance of both feet is balanced during use, and it is more comfortable to use, but the oil of these adjustable damper is sealed in the chamber away from the piston rod, and the piston rod pushes the piston to extrude the oil to the other oil cylinder through the conduit, which generates resistance, and the piston rod does not generate resistance when it returns (this type can also be called push resistance oil cylinder), and this type can only be used in tread mill and other body-building equipment that generates resistance by extruding the piston rod, and if it is used in mountain climber, such as the existing mountain climber with authorized patent number 2007200064812, the transmission belt generates resistance by a plurality of friction resistance wheels, which has poor running stability, and this type not only has complex structure, but also has high cost, so it is necessary to improve the existing technology. SUMMARY

[0003] (I) Technical problem to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a connected adjustable oil cylinder, which is designed for use in mountain climber and other body-building equipment, which helps to solve the problem of complex structure caused by using traditional pull rope, and the operation is more stable, which can better meet the use requirements.

[0005] (II) Technical scheme to be taken

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a kind of connected adjustable oil cylinder, including pair distribution oil cylinder, pair distribution The oil cylinder is communicated by high pressure oil pipe, adjusting valve is provided on the high pressure oil pipe, the oil cylinder includes cylinder body and the piston assembly being set to slide back and forth on the cylinder body, connecting piece is provided on the cylinder body end face corresponding with the piston assembly, the piston assembly divides the cylinder body into chamber one and chamber two, and the cylinder seat is provided on the cylinder body corresponding with chamber one, the high pressure oil pipe both ends are set on corresponding cylinder seat, chamber one in corresponding oil cylinder is connected by the high pressure oil pipe.

[0008] Preferably, the adjusting valve includes a valve stem provided on one of the cylinder seats, and an adjusting valve knob is provided on the valve stem.

[0009] Preferably, the piston assembly includes a piston rod that moves axially back and forth along the cylinder body, and a piston body is provided on the piston rod inside the cylinder body. The cylinder body is divided into chamber one and chamber two by the piston body. A plug is provided on the cylinder seat, the piston rod penetrates through the plug, and a fixing member is provided on the outer end of the piston body.

[0010] Preferably, the outer diameter of the cylinder seat is the same as the inner diameter of the cylinder body, and the piston rod penetrates axially through the cylinder body and the cylinder seat.

[0011] Preferably, a sealing ring is provided on the cylinder seat.

[0012] (Three) technical effects to be achieved

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] Firstly, the oil cylinder includes a cylinder body and a piston assembly that slides back and forth on the cylinder body. A connecting piece is provided on the cylinder body end face corresponding with the piston assembly. The piston assembly divides the cylinder body into chamber one and chamber two. A cylinder seat is provided on the cylinder body corresponding with chamber one. The high pressure oil pipe is provided on both ends of the corresponding cylinder seat. Chamber one in the corresponding oil cylinder is connected by the high pressure oil pipe. This creates a back-pulling and extrusion mode. By pulling the piston assembly, the medium (usually hydraulic oil) in chamber one can be extruded to achieve resistance. This creates a brand-new mode. This is more suitable for use on a mountain climbing machine. This is conducive to being used on mountain climbing machines and other fitness equipment. It avoids the use of traditional transmission belts and pull rope structures that generate resistance. The operation is more stable and reliable, and it is more conducive to meeting the use requirements.

[0015] Second, the utility model discloses oil cylinder includes cylinder body and the piston assembly of setting on cylinder body and sliding back and forth, is provided with connecting piece on the cylinder body end face corresponding with piston assembly, and piston assembly divides the cylinder into chamber one and chamber two, and is provided with cylinder seat on the cylinder body corresponding chamber one, and high pressure oil pipe both ends are set on corresponding cylinder seat, and chamber one in corresponding oil cylinder is connected through high pressure oil pipe, and this kind of creates a through pull extrusion oil mode, and this is more favorable to be suitable for being used on mountain climbing machine and other fitness equipment, changes the rope structure through the prior art, and also be convenient for large-scale popularization and application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model.

[0017] Figure 2 It is the three-dimensional schematic diagram of the utility model.

[0018] Figure 3 It is the explosion schematic diagram of the utility model.

[0019] Figure 4 It is the overhead direction schematic diagram of the utility model.

[0020] Figure 5 It is Figure 4 A-A direction section view in the middle.

[0021] Figure 6 It is Figure 4 B-B direction section view in the middle.

[0022] In the drawing: 1, oil cylinder;2, high pressure oil pipe;3, regulating valve;11, cylinder body;12, piston assembly;13, connecting piece;14, cylinder seat;31, valve stem;32, regulating valve knob;111, chamber one;112, chamber two;121, piston rod;122, piston body;123, plug;124, fixed part;141, sealing ring. DETAILED DESCRIPTION

[0023] In the description of the utility model, need explanation, when element is called " fixed to " or " set to " another element, it can be directly on another element or indirectly on another element. When an element is called " connected to " another element, it can be directly connected to another element or indirectly connected to another element.

[0024] In the description of the utility model, it needs to explain, the term "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on the direction or position relation indicated is based on the direction or position relation shown in the drawing, or it is the direction or position relation that the utility model product uses usually places, just is for the convenience of describing the utility model and simplifying the description, and is not the indication or the implied device or element that the indicated device or element must have a particular direction, constructs and operates, therefore can not be understood as the limitation to the utility model. In addition, the term "first", "second", "third" and so on are only used to distinguish the description, and can not be understood as the indication or the implied relative importance. Therefore, the feature that is limited to "first", "second" can be explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or two or more, unless otherwise specifically limited. The meaning of "several" is one or more, unless otherwise specifically limited.

[0025] In the description of the utility model, it also needs to explain that, unless otherwise specifically defined and limited, the term "set", "installation", "connection", "connection" should be broad-sense understanding, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below through the drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0027] Example one: refer to Figures 1 to 6The utility model provides a kind of conjoined adjustable oil cylinder, including pair distribution oil cylinder 1, and pair distribution oil cylinder 1 is connected by high pressure oil pipe 2 between, high pressure oil pipe 2 is provided with regulating valve 3, oil cylinder 1 includes cylinder body 11 and the piston assembly 12 of being set to slide back and forth on cylinder body 11, connecting piece 13 is provided on the end face of cylinder body 11 corresponding with piston assembly 12, and it is favorable to be connected with external equipment by connecting piece 13, piston assembly 12 divides cylinder body 11 into chamber one 111 and chamber two 112, chamber one 111 contains medium (medium is generally hydraulic oil), and cylinder seat 14 is provided on the cylinder body 11 corresponding with chamber one 111, high pressure oil pipe 2 both ends are set on corresponding cylinder seat 14, and chamber one 111 in corresponding oil cylinder 1 is connected by high pressure oil pipe 2, so it is favorable that the medium contained in chamber one 111 flows mutually by high pressure oil pipe 2, and it is quantitatively changed by the adjustment of regulating valve 3, can better adapt to the use demand of different population.The utility model extrudes the space of chamber one 111 by the back pull of piston assembly 12, to extrude and transmit the medium of chamber one 111 in the cylinder body 11 of one oil cylinder 1 to the chamber one 111 in the cylinder body 11 of another oil cylinder 1.The utility model avoids that oil liquid is in the chamber on the side far from piston rod, and further changes the mode that traditional piston rod pushes piston and extrudes oil liquid to another oil cylinder by conduit, the utility model contains medium (medium is generally hydraulic oil) in chamber one 111, and high pressure oil pipe 2 both ends are used to connect pair distribution chamber one 111 (on the cylinder body 11 of the side of piston assembly 12), this can extrude medium (medium is generally hydraulic oil) in chamber one 111 by the pull of piston assembly 12, and further reach the effect of resistance, this creates a brand-new mode, this can be more suitable on mountain climbing machine, more stable and reliable in operation, and be more favorable to meet use demand.It is further indicated that connecting piece 13 adopts connecting ring, and is convenient to implement.

[0028] Example two: can be based on example one, as shown in Figure 2 、 Figure 3 、 Figure 5 And Figure 6 Indicated, regulating valve 3 includes valve stem 31 set on one of cylinder seat 14, valve stem 31 is provided with regulating valve knob 32, and it is favorable to adjust the adjustment of valve stem 31 to high pressure oil pipe 2 and one oil cylinder 1 by the control of regulating valve knob 32, to adjust the size of oil circuit, to adapt to the use demand of different population.This structure is also relatively simple, and it is convenient to produce and manufacture, reduces the cost input of production and manufacture.

[0029] Example three: can be based on example one or example two, as shown in Figure 3 、 Figure 5 And Figure 6As shown, the piston assembly 12 includes a piston rod 121 moving back and forth along the cylinder 11 in the axial direction, the piston body 122 is arranged on the piston rod 121 inside the cylinder 11, the cylinder 11 is divided into chamber one 111 and chamber two 112 by the piston body 122, the plug 123 is arranged on the cylinder base 14, and the piston rod 121 penetrates the plug 123, which is conducive to better forming the chamber two 112, and the fixing piece 124 is arranged on the outer end of the piston body 122, which is convenient for the piston body 122. Further description, the fixing piece 124 is preferably a pull ring, which is convenient to implement.

[0030] Embodiment four: can be based on the embodiment one or embodiment two or embodiment three, like Figure 5 And Figure 6 As shown, the outer diameter of the cylinder base 14 is the same as the inner diameter of the cylinder 11, and the piston rod 121 penetrates the cylinder 11 and the cylinder base 14 in the axial direction, which is conducive to combining the cylinder base 14 and the cylinder 11 together. Further description, the sealing ring 141 is arranged on the cylinder base 14, which is also conducive to reducing the friction of the piston rod 121.

[0031] The overall structure of the utility model is also relatively simple, which is convenient for production and manufacturing, reduces the production and manufacturing cost, and is convenient for batch production and manufacturing.

[0032] The standard parts used in the present application file can be purchased from the market, and the specific connection mode of each part adopts the conventional means such as bolt, rivet and the like in the prior art, which will not be described in detail here.

[0033] It should be noted that although the above embodiments have been described in the present text, the patent protection scope of the utility model is not limited thereby. Therefore, based on the innovative idea of the utility model, the changes and modifications of the embodiments described in the present text, or the equivalent structure or equivalent process conversion made by using the contents of the utility model specification and drawings, directly or indirectly apply the above technical solutions to other related technical fields, are all included in the protection scope of the utility model patent.

Claims

1. A connected adjustable oil cylinder, comprising a pair of oil cylinders (1) connected in communication through a high-pressure oil pipe (2), and an adjusting valve (3) is arranged on the high-pressure oil pipe (2), characterized in that: The oil cylinder (1) comprises a cylinder body (11) and a piston assembly (12) sliding on the cylinder body (11), a connecting piece (13) is arranged on the end face of the cylinder body (11) corresponding to the piston assembly (12), the piston assembly (12) divides the cylinder body (11) into a chamber one (111) and a chamber two (112), a cylinder seat (14) is arranged on the cylinder body (11) corresponding to the chamber one (111), high-pressure oil pipes (2) are arranged on the cylinder seat (14), and the chamber one (111) in the corresponding oil cylinder (1) is communicated through the high-pressure oil pipes (2).

2. The linked adjustable cylinder of claim 1, wherein: The adjusting valve (3) comprises a valve rod (31) arranged on one of the cylinder seats (14), and an adjusting valve knob (32) is arranged on the valve rod (31).

3. The linked adjustable cylinder of claim 1 or 2, wherein: The piston assembly (12) comprises a piston rod (121) moving along the cylinder body (11) in an axial direction, a piston body (122) is arranged on the piston rod (121) in the cylinder body (11), the cylinder body (11) is divided into the chamber one (111) and the chamber two (112) by the piston body (122), a plug (123) is arranged on the cylinder seat (14), the piston rod (121) penetrates through the plug (123), and a fixing piece (124) is arranged on the outer end of the piston body (122).

4. The linked adjustable cylinder of claim 3, wherein: The outer diameter of the cylinder seat (14) is the same as the inner diameter of the cylinder body (11), and the piston rod (121) penetrates through the cylinder body (11) and the cylinder seat (14) in an axial direction.

5. The linked adjustable cylinder of claim 4, wherein: A sealing ring (141) is arranged on the cylinder seat (14).

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