CN220404729U

CN220404729U - Runway gradient adjusting device and treadmill

Info

Publication number: CN220404729U
Application number: CN202320688221.7U
Authority: CN
Inventors: 刘翼茜; 刘翼菲; 刘博朗
Original assignee: Yongkang Haodao Fitness Equipment Co ltd
Current assignee: Yongkang Haodao Fitness Equipment Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2024-01-30
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a runway gradient adjusting device, which comprises a lifting bracket and an installing structure, wherein the lifting bracket comprises a supporting piece and an adjusting piece, a first chute, a first positioning component and a second positioning component are arranged on the adjusting piece, and the first positioning component is slidingly connected in the first chute and rotatably connected with the first chute; the mounting structure comprises a first mounting plate and a second mounting plate which are arranged on two sides of the first positioning assembly and respectively connected with two ends of the first positioning assembly, and a plurality of positioning notches which can be connected with the second positioning assembly in a clamping mode are formed in the periphery of the first mounting plate and/or the periphery of the second mounting plate. The utility model also discloses a running machine, which is provided with the runway gradient adjusting device, and the runway gradient adjusting device and the running machine are provided with the lifting support and the installation structure fixedly connected with the runway support, so that the lifting support is movably connected with the installation structure, the runway gradient can be quickly adjusted, the structure is stable, the operation is convenient, and the production cost is low.

Description

Runway gradient adjusting device and treadmill

Technical Field

The utility model relates to the field of treadmills, in particular to a runway gradient adjusting device and a treadmill.

Background

The running machine is a common apparatus for families and gymnasiums. When running on the road, people need to run forward by friction generated by pedaling force of feet on the ground, while running on the running machine is running belt of the running machine, people keep the original position, so that pedaling force is not needed, proper gradient is needed to compensate the rearward pedaling force of the sole, and therefore, a gradient adjusting device of a runway is usually arranged on the common running machine, and the gradient of the runway can be adjusted according to different exercise intensity requirements.

The prior gradient adjusting device mainly comprises two kinds, namely an electric gradient adjusting device, such as an utility model patent (publication number: CN 202169045U) with a name of a gradient adjusting device of a running machine disclosed in the prior art, wherein the distance between a fixed hole at the upper end of a lifting motor and a fixed hole of a movable sleeve at the lower end is adjusted by an electronic control system to achieve the effect of adjusting the gradient of a runway, and the electric gradient adjusting device has high production cost because the lifting motor and the electronic control system are required to be arranged; another is manual slope adjusting device, as disclosed in the prior art, an utility model patent (publication number: CN 208927514U) named a folding running machine, in which a slope adjusting block is disposed at the tail end of the running table, the slope adjusting block is provided with 3 adjusting holes sequentially arranged in arc shape, and a slope adjusting pin is disposed in the adjusting hole, and the slope adjusting pin is manually inserted into the adjusting holes at different positions along the axial direction thereof so as to change the relative angle between the slope adjusting block and the running table, thereby achieving the effect of adjusting the slope of the runway.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the runway gradient adjusting device and the running machine, which are provided with the lifting support and the mounting structure fixedly connected with the runway support, wherein the lifting support is movably connected with the mounting structure, so that the runway gradient can be quickly adjusted, and the runway gradient adjusting device is stable in structure, convenient to operate and low in production cost.

The technical scheme of the utility model is as follows:

the utility model provides a runway gradient adjusting device, which comprises a lifting bracket and an installing structure fixedly connected with an external runway frame, wherein the lifting bracket comprises a supporting piece capable of being contacted with a medium surface and an adjusting piece connected to the supporting piece, and the adjusting piece comprises a lifting bracket, a supporting piece and a supporting piece, wherein the lifting bracket is fixedly connected with the external runway frame, and the supporting piece is connected with the lifting bracket through the supporting piece, wherein the lifting bracket comprises a supporting piece capable of being contacted with the medium surface, and the adjusting piece is connected with the supporting piece through the supporting piece, and the lifting bracket is fixedly connected with the external runway frame through the supporting piece: the adjusting piece is provided with a first sliding groove, a first positioning component and a second positioning component which are arranged in parallel, the first positioning component is slidably connected in the first sliding groove and is rotatably connected with the first sliding groove, the first sliding groove is arranged along a first straight line direction, and the second positioning component is arranged at one side of the first positioning component, which is close to the supporting piece, along the first straight line direction at intervals; the mounting structure comprises a first mounting plate and a second mounting plate which are arranged at intervals in parallel, the adjusting piece is arranged between the first mounting plate and the second mounting plate, two ends of the first positioning component are respectively connected with the first mounting plate and the second mounting plate, and a plurality of positioning notches which can be connected with the second positioning component in a clamping mode are formed in the lower side of the periphery of the first mounting plate and/or the lower side of the periphery of the second mounting plate in an inward sunken mode along the circumferential direction of the first positioning component.

Preferably, the first positioning component and the second positioning component are connected through an elastic component, and the elastic component can provide an elastic force for driving the first positioning component to move towards the direction close to the second positioning component when the first positioning component moves along the first chute towards the direction away from the second positioning component.

Preferably, the first positioning component comprises a first positioning piece and a first connecting piece, the first connecting piece comprises a first connecting shaft, two ends of the first connecting shaft are respectively connected with the first mounting plate and the second mounting plate, the first positioning piece is sleeved on the first connecting shaft and limited between the first mounting plate and the second mounting plate, and the first positioning piece is slidably connected in the first sliding groove and rotatably connected with the first sliding groove.

Preferably, the first connecting piece further comprises a first limiting part and a second limiting part which are respectively arranged at two ends of the first connecting shaft, the first limiting part and/or the second limiting part are detachably connected with the first connecting shaft, a first mounting channel and a second mounting channel for mounting the first connecting shaft are respectively arranged on the first mounting plate and the second mounting plate, after mounting, the first limiting part is positioned at the outer side of the first mounting plate, and the second limiting part is positioned at the outer side of the second mounting plate.

Preferably, the adjusting part is arranged to be a pipe body structure arranged along a first straight line direction, the first positioning part and the elastic part are arranged inside the adjusting part, an annular groove is concavely arranged on the first positioning part along the radial inward direction of the first positioning part, one end of the elastic part is connected in the annular groove, and the other end of the elastic part is connected with the second positioning component.

Preferably, the positioning notch is formed in the first mounting plate, one end of the second positioning assembly is detachably connected with the adjusting piece, and the other end of the second positioning assembly protrudes out of one side, close to the first mounting plate, of the adjusting piece to be connected with the positioning notch in a clamping mode.

Preferably, the second positioning component comprises a second positioning piece and a second connecting piece, the second connecting piece comprises a second connecting shaft and a third limiting part arranged at one end of the second connecting shaft, a first connecting channel for installing the second positioning piece and a second connecting channel for installing the second connecting shaft are arranged on the adjusting piece, after the second positioning component is installed, the third limiting part is located at one side, away from the first mounting plate, of the adjusting piece, the outer end of the second positioning piece protrudes out of the adjusting piece, is close to one side of the first mounting plate and is connected with a positioning notch in a clamping mode, one end, away from the third limiting part, of the second connecting shaft is detachably connected with the second positioning piece, and the end portion of the elastic piece is connected with the second positioning piece or the second connecting piece.

Preferably, the upper end of the first mounting plate is connected with the upper end of the second mounting plate through a third mounting plate, the third mounting plate is used for being connected with the bottom of the external runway frame, the lower end face of the first mounting plate is provided with an outer convex arc surface structure which is arranged around the first mounting channel, the positioning notch is provided with an inner concave arc surface structure which is formed by inwards sinking the outer convex arc surface structure, and the angle between the first straight line and the third mounting plate is 0-90 degrees when the outer end of the second positioning piece is connected with the positioning notch clamping groove.

Preferably, the lifting support and the mounting structure are provided with at least two groups, the supporting pieces of two adjacent lifting supports are connected through a linkage rod, the linkage rod and the two supporting pieces are arranged into an integrated structure, and the supporting pieces are sleeved with anti-slip pads which can be contacted with the surface of the medium.

The utility model also provides a running machine provided with the runway gradient adjusting device.

According to the runway gradient adjusting device disclosed by the utility model, as the first sliding groove is arranged, the relative installation structure can pull out the lifting support outwards to enable the second positioning assembly on the lifting support to be separated to the outer side of the positioning notch along the radial direction of the second positioning assembly when the gradient is adjusted, so that the lifting support can rotate around the first positioning assembly, when the second positioning assembly rotates to the corresponding positioning notch to be adjusted, the relative installation structure pushes the lifting support inwards to enable the second positioning assembly to be connected with the corresponding positioning notch in a clamping manner along the radial direction of the second positioning assembly, and the runway gradient can be rapidly adjusted.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a runway gradient adjusting device according to an embodiment of the utility model.

Fig. 2 is a schematic exploded view of a runway gradient adjusting device according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a first positioning assembly according to an embodiment of the utility model.

Fig. 4 is an exploded view of a first positioning assembly according to an embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of a second positioning assembly according to an embodiment of the utility model.

Fig. 6 is an exploded view of a second positioning assembly according to an embodiment of the present utility model.

FIG. 7 is a cross-sectional view taken at A-A of FIG. 1.

Fig. 8 is a cross-sectional view at B-B in fig. 1.

Fig. 9 is a schematic diagram of a treadmill according to an embodiment of the present utility model.

Fig. 10 is a schematic diagram of a treadmill according to an embodiment of the present utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact, but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1-8, a runway gradient adjustment device 10 is disclosed as an embodiment of the present utility model for use in exercise equipment such as a treadmill or a walker. The runway gradient adjusting device 10 comprises a lifting support 1 and an installation structure 2 fixedly connected with an external runway frame, wherein the lifting support 1 comprises a support piece 11 and an adjusting piece 12, the support piece 11 can be in contact with the surface of a medium such as the ground, the floor, the carpet and the like, and the adjusting piece 12 is connected to the support piece 11 and used for adjusting the relative angle between the support piece 11 and the installation structure 2, so that the heights of the installation structure 2 and the external runway frame relative to the surface of the medium such as the ground and the like are adjusted, and the external runway gradient is adjusted. The adjusting member 12 is provided with a first sliding groove 121 and a first positioning component 3 and a second positioning component 4 which are arranged in parallel, and the first positioning component 3 is slidably connected in the first sliding groove 121 and rotatably connected with the first sliding groove 121, that is, the first positioning component 3 can slide along the length direction of the first sliding groove 121 and simultaneously rotate relative to the first sliding groove 121. The first sliding groove 121 is disposed along a first straight line L, and the second positioning members 4 are disposed at intervals along the first straight line L on a side of the first positioning member 3 near the supporting member 11. The mounting structure 2 comprises the first mounting plate 21 and the second mounting plate 22 which are arranged at intervals in parallel, the adjusting piece 12 is arranged between the first mounting plate 21 and the second mounting plate 22, and the two ends of the first positioning component 3 are respectively connected with the first mounting plate 21 and the second mounting plate 22, so that the first positioning component 3 is stable in structure and not easy to skew, the first component 3 is ensured to stably and smoothly slide and rotate along the first sliding groove 121, meanwhile, the adjusting piece 12 is limited to move between the first mounting plate 21 and the second mounting plate 22, and accordingly the adjusting piece 12 can be prevented from being greatly deflected in the sliding or rotating process of the relative mounting structure 2 to influence the smooth sliding or rotating of the adjusting piece 12, and the moving fluency of the lifting bracket 1 relative to the mounting structure 2 is improved. The lower side of the outer periphery of the first mounting plate 21 is provided with a plurality of positioning notches 211 recessed inward along the circumferential direction of the first positioning component 3, which can be engaged with and connected to the second positioning component 4. In this embodiment, because the first chute 121 is provided, the lifting bracket 1 can be pulled out relative to the mounting structure 2 during slope adjustment, so that the second positioning component 4 on the lifting bracket 1 is separated from the outer side of the positioning notch 211 along the radial direction thereof, so that the lifting bracket 1 can rotate around the first positioning component 3, when the second positioning component 3 rotates to the corresponding positioning notch 211 to be adjusted, the lifting bracket 1 is pushed inwards relative to the mounting structure 2, so that the second positioning component 4 is connected with the corresponding positioning notch 211 along the radial direction thereof in a clamping manner, the rapid adjustment of the runway slope can be realized, meanwhile, the first positioning component 3 slides along the first chute 121, so that the lifting bracket 1 can move outwards or inwards relative to the mounting structure 2, the second positioning component 4 and the lifting bracket 1 are always kept connected in the adjustment process, the second positioning component 4 is not required to be pulled out separately for reinsertion, the adjustment effect can be realized through the mutual cooperation and the movement of the first chute 121, the first positioning component 3 and the second positioning component 4, the structure is simple in structure, the practicability is strong. In this embodiment, the positioning notch 211 is only disposed on the first mounting plate 21, so as to reduce the production cost, and in other embodiments, the positioning notch 211 may be disposed on the second mounting plate 22 only, which has the same effect, or the positioning notch 211 is disposed on both the first mounting plate 21 and the second mounting plate 22 at the same time, so as to enhance the stability of gradient positioning.

As shown in fig. 2, in some embodiments, the first positioning component 3 is connected to the second positioning component 4 through the elastic member 5, and the elastic member 5 can provide an elastic force for driving the first positioning component 3 to move towards the direction close to the second positioning component 4 when the first positioning component 3 moves along the first chute 121 towards the direction far away from the second positioning component 4, so that when the lifting bracket 1 is pulled out relative to the mounting structure 2 and the second positioning component 3 on the lifting bracket 1 is rotated to the corresponding positioning notch 211 to be adjusted, the second positioning component 4 is connected with the corresponding positioning notch 211 in a clamping manner through the elastic force of the elastic member 5, so that the speed of gradient adjustment is further accelerated, and the lifting bracket is easier to use and saves labor. In this embodiment, the elastic member 5 is configured as a tension spring, and is hooked on the first positioning component 3 and the second positioning component 4 through hooks at two ends of the tension spring, so that the assembly is convenient, the structure is simple, economical and practical, and in other embodiments, the elastic member 5 can also be configured as other elastic members with elastic tightening force, such as an elastic rope, and the labor can also be saved.

As shown in fig. 3 and 4, in some embodiments, the first positioning component 3 includes a first positioning member 32 and a first connecting member 31, where the first connecting member 31 includes a first connecting shaft 311 with two ends connected to the first mounting plate 21 and the second mounting plate 22, respectively, a connecting channel is disposed in the middle of the first positioning member 32 along an axial direction of the first connecting shaft, the first positioning member 32 is sleeved on the first connecting shaft 311 through the connecting channel, the first positioning member 32 is limited between the first mounting plate 21 and the second mounting plate 22, the first positioning member 32 is slidably connected in the first sliding groove 121 and is rotatably connected to the first sliding groove 121, and the radial width of the first connecting shaft 311 is increased, so that the first positioning member 32 is more stable during the rotation of the lifting bracket 1, and meanwhile, because the first sliding groove 121 can rotate relative to the first positioning member 32, the first positioning member 32 can rotate relative to the first connecting shaft 311, so that the resistance is smaller during the rotation of the lifting bracket 1, and the first positioning member 32 is easier to rotate.

In some embodiments, the first connecting member 31 further includes a first limiting portion 312 and a second limiting portion 313 respectively disposed at two ends of the first connecting shaft 311, the first mounting plate 21 and the second mounting plate 22 are respectively provided with a first mounting channel 212 and a second mounting channel 221 for mounting the first connecting shaft 311, after mounting, the first limiting portion 312 is located at the outer side of the first mounting plate 21, the second limiting portion 313 is located at the outer side of the second mounting plate 22, the first limiting portion 312 is fixedly connected with the first connecting shaft 311 to form an integral structure, the second limiting portion 313 is detachably connected with the first connecting shaft 311, during mounting, the first connecting shaft 311 can extend into the mounting structure 2 from the first mounting channel 212, into the first sliding groove 121 and into the second mounting channel 221, and then the second limiting portion 313 is connected with the first connecting shaft 311 to limit the mounting structure 2 between the first limiting portion 312 and the second limiting portion 313, so as to facilitate the assembly of the first positioning member 32. Of course, in other embodiments, the second limiting portion 313 and the first connecting shaft 311 may be fixedly connected to form an integral structure, the first limiting portion 312 and the first connecting shaft 311 may be detachably connected by a detachable connection structure such as a screw thread, at this time, the first connecting shaft 311 may extend into the mounting structure 2 from the second mounting channel 221, into the first chute 121 and into the first mounting channel 212 during mounting, and then the first limiting portion 312 and the first connecting shaft 311 may be connected to limit the mounting structure 2 between the first limiting portion 312 and the second limiting portion 313, so as to facilitate the assembly of the first positioning member 32. In this embodiment, the first connecting piece 31 is configured as a locking screw, where the first limiting portion 312 and the first connecting shaft 311 are combined to form a female screw with a thread groove at one end far away from the first limiting portion 312, the second limiting portion 313 and a threaded rod protruding from the second limiting portion 313 and being fixed on one side near the first connecting shaft 311 are combined to form a male screw, the male screw and the female screw are connected by extending into the thread groove of the female screw through the threaded rod of the male screw to form a threaded connection, and in other embodiments, the first connecting piece 31 may also be configured as other detachable limiting connection structures, which also facilitates the assembly of the first positioning piece 32.

As shown in fig. 1-3, in some embodiments, the adjusting member 12 is configured as a tube body structure arranged along the direction of the first straight line L, the first positioning member 32 and the elastic member 5 are arranged inside the adjusting member 12, the first positioning member 32 is provided with an annular groove 321 recessed inwards along the radial direction of the first positioning member 32, the annular groove 321 is arranged at the middle position of the first positioning member 32, one end of the elastic member 5 is connected in the annular groove 321, the other end is connected with the second positioning assembly 4, and one end of the elastic member 5 is limited at the middle position of the first positioning member 32 through the annular groove 321, so that the elastic member 5 is prevented from sliding axially along the first positioning member 32, and the stability of connecting the first positioning member 32 with the elastic member 5 is improved.

In some embodiments, one end of the second positioning component 4 is detachably connected to the adjusting member 12, and the other end of the second positioning component protrudes out of one side, close to the first mounting plate 21, of the adjusting member 12 to be in snap connection with the positioning notch 211, so that the second positioning component 4 is conveniently assembled on the adjusting member 12.

As shown in fig. 5 and 6, in some embodiments, the second positioning assembly 4 includes a second positioning member 42 and a second connecting member 41, the second connecting member 41 includes a second connecting shaft 411 and a third limiting portion 412 disposed at one end of the second connecting shaft 411, the adjusting member 12 is provided with a first connecting channel 122 for installing the second positioning member 42 and a second connecting channel 123 for installing the second connecting shaft 411, the first connecting channel 122 and the second connecting channel 123 are located on the same straight line, the third limiting portion 412 is located at one side of the adjusting member 12 away from the first mounting plate 21 after installation, preventing the second connecting shaft 411 from being separated from the adjusting member 12, the outer end of the second positioning member 42 protrudes out of the adjusting member 12 at one side of the adjusting member 12 close to the first mounting plate 21 and is in snap connection with the positioning notch 211, one end of the second connecting shaft 411 away from the third limiting portion 412 is detachably connected with the second positioning member 42 through a detachable connection structure such as a screw thread, the end of the elastic member 5 is connected to the second connecting member 41, and the third limiting portion 412 is fixedly connected with the second connecting shaft into an integral structure. During installation, the second connecting shaft 411 can extend into the adjusting member 12 and the end of the elastic member 5 from the second connecting channel 123, and simultaneously extend the second positioning member 42 into the adjusting member 12 from the first connecting channel 122 and detachably connect with the end, far away from the third limiting portion 412, of the second connecting shaft 411, so as to facilitate assembly of the second positioning member 42. In this embodiment, the second connecting member 41 is set as a screw, one end of the second positioning member 42 near the third limiting portion 412 is concavely provided with a threaded groove, the second connecting shaft 411 is set as a threaded rod structure, and the second connecting shaft 411 of the second connecting member 41 and the second positioning member 42 extends into the threaded groove to be in threaded connection with the threaded groove, so that the structure is simple and practical, and in other embodiments, the second connecting member 41 can be set as other detachable connecting structures, and the assembly of the second positioning member 42 can be facilitated. In addition, since the adjusting member 12 is of a tube structure, the first positioning component 3 and the second positioning component 4 are respectively contacted with the adjusting member 12 through two pivot positions close to two ends, that is, the first positioning component 3 is respectively contacted with the first sliding grooves 121 on two sides of the adjusting member 12 through two pivot points close to two ends of the first positioning component 32, the second positioning component 4 is contacted with the second connecting channel 123 through a pivot point close to the third limiting part 412 on the second connecting shaft 411 and is contacted with the first connecting channel 122 through a pivot point on the second positioning component 42, so that the connection between the first positioning component 3 and the second positioning component 4 and the adjusting member 12 is more stable, is not easy to skew, and improves the smoothness of gradient adjustment.

As shown in fig. 2, in some specific embodiments, the upper end of the first mounting plate 21 is connected to the upper end of the second mounting plate 22 through a third mounting plate 23, the third mounting plate 23 is used for being connected to the bottom of the external runway frame, the lower end surface of the first mounting plate 21 is configured as an outer convex arc surface structure arranged around the first mounting channel 212, the positioning notch 211 is configured as an inner concave arc surface structure formed by inwards recessing from the outer convex arc surface structure, and the outer surface of the second positioning member 42 is configured as a cylindrical surface structure arranged around the axis direction of the first connecting shaft 411, so that the second positioning member 42 is convenient to be connected with the positioning notch 211 from various angles. The angle between the first straight line L and the third mounting plate 23 is 0-90 degrees when the outer end of the second positioning piece 42 is connected with the clamping groove of the positioning notch 211, namely, the second positioning piece 42 can be positioned at 0-90 degrees relative to the first positioning piece 32, so that the connection position of the lifting bracket 1 and the external runway frame is supported at different heights, and the effect of adjusting the slope of the runway is achieved. In this embodiment, three positioning notches 211 are provided, which are respectively a low gear, a medium gear and a high gear, wherein the angle of the low gear is greater than or equal to 0 ° and less than or equal to 20 °, the angle of the medium gear is greater than 20 ° and less than or equal to 50 °, and the angle of the high gear is greater than 50 ° and less than or equal to 90 °, and the preferred low gear, medium gear and high gear are respectively set to 15 °, 45 ° and 80 °, which are suitable for most treadmills, and have a relatively stable supporting effect.

In some embodiments, the first positioning member 32 and the second positioning member 42 are made of a hard material such as plastic, hard silica gel, or a soft material such as soft silica gel, soft rubber, etc., so as to avoid generating a rigid collision with the metal structure such as the first connecting member 31, the second connecting member 41, the mounting structure 2, or the lifting frame 1, thereby reducing noise, and in other embodiments, only one of the first positioning member 32 and the second positioning member 42 may be made of a non-metal material such as plastic, hard silica gel, soft rubber, etc., so that noise can be reduced to some extent, or the first positioning member 32 or the second positioning member 42 may be made of a metal material, so as to enhance stability of the structure.

As shown in fig. 1 and 2, in some embodiments, two sets of lifting brackets 1 and mounting structures 2 are provided, which are matched with the structures of the conventional running machines, in which most of the running machines are provided with runway brackets on two sides, and the supporting members 11 of the two lifting brackets 1 are connected through a linkage rod 13, so that the two adjusting members 12 can be linked to move simultaneously by pulling the linkage rod 13 or moving any one of the supporting members 11 or the adjusting members 12 relative to the mounting structures 2, and the simultaneous adjustment of gradients on two sides is realized, thereby improving the gradient adjustment speed, and being more rapid and convenient to use. The two first mounting plates 21 are oppositely arranged on the surface, so that the two second mounting plates 22 are respectively arranged on the outer sides of the corresponding first mounting plates 21, and therefore the two second positioning assemblies 4 are respectively protruded on the inner sides of the two adjusting parts 12, finger clamping is avoided, and safety is higher. The linkage rod 13 and the two supporting pieces 11 are arranged as an integral structure, thereby simplifying the structure and facilitating the production. The support piece 11 is sleeved with the anti-slip pad 14 which can be contacted with the surface of the medium such as the ground, so that the stability of the contact with the surface of the medium such as the ground is improved, and the anti-slip pad 14 can be made of soft materials such as soft silica gel, soft rubber, sponge and the like, so that the anti-slip pad has the effects of shock absorption and noise reduction. Of course, in other embodiments, three or more groups of the lifting brackets 1 and the mounting structure 2 may be provided, so that the supporting members 11 of two adjacent lifting brackets 1 are connected by the linkage rod 13, and the effect of simultaneously moving a plurality of adjusting members 12 can be achieved.

As shown in fig. 9 and 10, as another embodiment of the present utility model, there is also disclosed a running machine comprising a track frame 6 and a running block 7 disposed on the track frame 6, a track gradient adjusting device 10 installed at the bottom of the track frame 6 near the front end of the track frame 6, and adjusting the track gradient by adjusting the relative angle of the lifting bracket 1 and the mounting structure 2 so as to support the front parts of the track frame 6 and the running block 7 at different heights.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

In summary, the foregoing description is only of the preferred embodiments of the present utility model, and all equivalent changes and modifications made in accordance with the claims should be construed to fall within the scope of the utility model.

Claims

1. The utility model provides a runway slope adjusting device, its characterized in that includes lifting support and with external runway frame fixed connection's mounting structure, lifting support includes the support piece that can contact with the medium surface and connects the regulating part on the support piece, wherein:

the adjusting piece is provided with a first sliding groove, a first positioning component and a second positioning component which are arranged in parallel, the first positioning component is slidably connected in the first sliding groove and is rotatably connected with the first sliding groove, the first sliding groove is arranged along a first straight line direction, and the second positioning component is arranged at one side of the first positioning component, which is close to the supporting piece, along the first straight line direction at intervals;

the mounting structure comprises a first mounting plate and a second mounting plate which are arranged at intervals in parallel, the adjusting piece is arranged between the first mounting plate and the second mounting plate, two ends of the first positioning component are respectively connected with the first mounting plate and the second mounting plate, and a plurality of positioning notches which can be connected with the second positioning component in a clamping mode are formed in the lower side of the periphery of the first mounting plate and/or the lower side of the periphery of the second mounting plate in an inward sunken mode along the circumferential direction of the first positioning component.

2. The runway gradient adjustment device of claim 1, wherein: the first positioning component and the second positioning component are connected through an elastic component, and the elastic component can provide an elastic force for driving the first positioning component to move towards the direction close to the second positioning component when the first positioning component moves along the first chute towards the direction far away from the second positioning component.

3. The runway gradient adjustment device of claim 2, wherein: the first locating component comprises a first locating piece and a first connecting piece, the first connecting piece comprises a first connecting shaft, two ends of the first connecting shaft are connected with the first mounting plate and the second mounting plate respectively, the first locating piece is sleeved on the first connecting shaft and limited between the first mounting plate and the second mounting plate, and the first locating piece is slidably connected in the first sliding groove and rotatably connected with the first sliding groove.

4. A runway gradient adjustment device as claimed in claim 3, wherein: the first connecting piece is characterized in that the first connecting piece further comprises a first limiting part and a second limiting part which are respectively arranged at two ends of the first connecting shaft, the first limiting part and/or the second limiting part are detachably connected with the first connecting shaft, a first mounting channel and a second mounting channel for mounting the first connecting shaft are respectively arranged on the first mounting plate and the second mounting plate, the first limiting part is located on the outer side of the first mounting plate after mounting, and the second limiting part is located on the outer side of the second mounting plate.

5. The runway gradient adjustment device of claim 4, wherein: the adjusting part is arranged to be a pipe body structure arranged along a first straight line direction, the first positioning part and the elastic part are arranged inside the adjusting part, an annular groove is concavely arranged on the first positioning part along the radial direction inwards of the first positioning part, one end of the elastic part is connected in the annular groove, and the other end of the elastic part is connected with the second positioning component.

6. The runway gradient adjustment device of claim 5, wherein: the positioning notch is arranged on the first mounting plate, one end of the second positioning assembly is detachably connected with the adjusting piece, and the other end of the second positioning assembly protrudes out of one side, close to the first mounting plate, of the adjusting piece to be connected with the positioning notch in a clamping mode.

7. The runway slope adjustment device of claim 6, wherein: the second locating component comprises a second locating piece and a second connecting piece, the second connecting piece comprises a second connecting shaft and a third limiting part arranged at one end of the second connecting shaft, a first connecting channel for installing the second locating piece and a second connecting channel for installing the second connecting shaft are arranged on the adjusting piece, after installation, the third limiting part is located at one side, far away from the first mounting plate, of the adjusting piece, the outer end of the second locating piece protrudes out of one side, close to the first mounting plate, of the adjusting piece and is connected with a locating notch in a clamping mode, one end, far away from the third limiting part, of the second connecting shaft is detachably connected with the second locating piece, and the end of the elastic piece is connected to the second locating piece or the second connecting piece.

8. The runway slope adjustment device of claim 7, wherein: the upper end of the first mounting plate is connected with the upper end of the second mounting plate through a third mounting plate, the third mounting plate is used for being connected with the bottom of an external runway frame, the lower end face of the first mounting plate is arranged to be an outward convex arc surface structure which is arranged around a first mounting channel, the positioning notch is arranged to be an inward concave arc surface structure which is formed by inward sinking of the outward convex arc surface structure, and the angle between a first straight line and the third mounting plate is 0-90 degrees when the outer end of the second positioning piece is connected with a positioning notch clamping groove.

9. The runway gradient adjustment device of any of claims 1-8, wherein: the lifting support and the mounting structure are provided with at least two groups, the supporting pieces of two adjacent lifting supports are connected through a linkage rod, the linkage rod and the two supporting pieces are arranged into an integrated structure, and the supporting pieces are sleeved with anti-slip pads which can be contacted with the surface of a medium.

10. A treadmill, characterized in that: a runway gradient adjustment device according to any of claims 1 to 9.