Falling-preventing fitness horizontal bar

Abstract

The utility model discloses an anti-falling body-building horizontal bar which comprises a pipe assembly, a connecting rod assembly and a connecting rod assembly, the pipe assembly has the opposite axial direction, radial direction and circumferential direction and comprises an outer pipe and an inner pipe which are arranged in a sliding and sleeving mode, the outer pipe is a round pipe, the inner pipe is a polygonal pipe, and a plurality of strip-shaped clamping grooves extending in the radial direction are formed in the pipe wall at intervals; the base assemblies are fixedly arranged at the two ends of the pipe assembly, one side face of each base assembly is covered with anti-skid rubber, and the base assemblies abut against a door frame or a wall; the first locking device is fixedly arranged on the periphery of the outer pipe in a sleeving mode, a polygonal channel matched with the inner pipe and allowing the inner pipe to slide is formed in the first locking device, and a plurality of clamping strips matched with the strip-shaped clamping grooves are arranged in the polygonal channel and used for keeping the relative positions of the outer pipe and the inner pipe; the clamping strip is provided with a locking position clamped with the strip-shaped clamping groove and an unlocking position separated from the strip-shaped clamping groove. According to the horizontal bar, relative rotation between the outer pipe and the inner pipe can be avoided, enough abutting force can be provided, and it is guaranteed that the horizontal bar is tightly attached to a door frame or a wall.

Description

Technical Field

[0001] The present application relates to the field of horizontal bars, and in particular to an anti-falling fitness horizontal bar. Background Art

[0002] The horizontal bar is a common indoor fitness equipment, mainly used for installation between door frames or walls for pull-up exercises. Existing horizontal bars usually include an outer tube (circular tube), retractable inner tubes (circular tubes) located at both ends of the outer tube, and a locking device between the two. In order to increase the contact area between the inner tube and the door frame or wall, a fixing seat for abutment is also added to the end of the inner tube. During installation, the fixing seat is pressed against the door frame or wall by adjusting and locking the length of the inner tube.

[0003] However, during use, users may apply downward or twisting force, which may cause the inner and outer tubes of the existing horizontal bar to rotate relative to each other, making the fit between the base and the door frame or wall loose, thus causing the horizontal bar to become loose or even fall off. Utility Model Content

[0004] In order to solve the technical problem that the inner and outer tubes of the existing horizontal bar are prone to relative rotation and eventually cause the horizontal bar to fall off, the present application provides an anti-falling fitness horizontal bar, comprising:

[0005] The tube assembly has relative axial, radial and circumferential directions, and includes an outer tube and an inner tube that are slidably sleeved, wherein the outer tube is a circular tube, and the inner tube is a polygonal tube with a plurality of strip-shaped slots extending along the radial direction spaced apart on the tube wall;

[0006] The base assembly is fixed at both ends of the tube assembly, and one side is covered with anti-slip glue for pressing against the door frame or wall;

[0007] The first locking device is fixedly sleeved on the outer circumference of the outer tube, and is provided with a polygonal channel adapted to the inner tube and for the inner tube to slide, and the polygonal channel is provided with a plurality of clips adapted to the bar slot for maintaining the relative position of the outer tube and the inner tube, and the clips have a locking position for driving the clips to engage with the bar slot and an unlocking position for driving the clips to disengage from the bar slot.

[0008] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution. They are merely further supplements or optimizations. Under the premise that there are no technical or logical contradictions, each optional method can be combined separately for the above-mentioned overall solution, or multiple optional methods can be combined.

[0009] Optionally, the first locking device includes:

[0010] A shell, one end of which is fixedly connected to the outer tube, and the other end of which is provided with a polygonal through hole matching the shape of the inner tube, allowing the inner tube to slide relative to the outer tube;

[0011] A lock core is built into the housing and is movable along the radial direction, wherein a plurality of ribs are provided on the top of the lock core to form a card strip adapted to the strip-shaped card slot;

[0012] The locking switch is rotatably connected to the shell and partially extends out of the shell, and has a locking position for driving the card strip to cooperate with the bar card slot and an unlocking position for driving the card strip to disengage from the bar card slot.

[0013] Optionally, the inner tube is a quadrilateral tube, a hexagonal tube, or an octagonal tube.

[0014] Optionally, the housing includes:

[0015] The first housing is provided with an annular groove adapted to the shape of the outer tube, and the side wall of the annular groove is symmetrically provided with multiple locking pin holes for fasteners to pass through;

[0016] The second housing is provided with an elastic member for driving the lock core to slide radially toward the locking switch.

[0017] Optionally, the lock core is in the shape of a hollow quadrilateral ring for the inner tube to pass through, and connecting ears for fixing the elastic member are symmetrically provided on both sides of the lock core.

[0018] Optionally, a guide column is provided at the bottom of the lock core and is radially slidably engaged with the shell.

[0019] Optionally, the fitness horizontal bar further includes a second locking device connected between the inner tube and the base assembly, including:

[0020] A connecting tube, having the same shape as the inner tube and used to connect the inner tube and the base;

[0021] There are two transmission nuts, which are respectively embedded in the connecting tube and the inner tube and linked with the corresponding tubes;

[0022] A transmission screw is slidably built into the inner tube and the connecting tube and is transmission-connected to the two transmission nuts;

[0023] The fine-tuning nut is connected to the transmission screw and is located between the two transmission nuts, and is used to drive the transmission screw to rotate to extend or shorten the axial distance between the two transmission nuts.

[0024] Optionally, the second locking device further includes a driving member sleeved on the outer periphery of the fine-tuning nut.

[0025] In order to provide the tube assembly with more tightening force to the base assembly so that the base assembly is not easily loosened from the door frame or wall, the present application also provides an anti-fall fitness horizontal bar, including:

[0026] The pipe assembly has relative axial, radial and circumferential directions, and includes an outer pipe and an inner pipe that are slidably sleeved, wherein the inner pipe is a polygonal pipe;

[0027] The base assembly is fixed at both ends of the tube assembly, and one side is covered with anti-slip glue for pressing against the door frame or wall;

[0028] a first locking device, which is sleeved on the outer periphery of the tube assembly and locally acts on the inner tube to maintain the relative position of the outer tube and the inner tube;

[0029] The second locking device is used to connect the inner tube and the base assembly, including:

[0030] A connecting tube, having the same shape as the inner tube and used to connect the inner tube and the base assembly;

[0031] There are two transmission nuts, which are respectively embedded in the connecting tube and the inner tube and linked with the corresponding tubes;

[0032] A transmission screw is slidably built into the inner tube and the connecting tube and is transmission-connected to the two transmission nuts;

[0033] The fine-tuning nut is connected to the transmission screw and is located between the two transmission nuts, and is used to drive the transmission screw to rotate to extend or shorten the axial distance between the two transmission nuts.

[0034] In order to provide more compensatory tightening force to the base assembly during use, so that the fit between the base and the door frame or wall is not easy to loosen, the present application also provides an anti-fall fitness horizontal bar, including:

[0035] A pipe assembly having relative axial, radial and circumferential directions, comprising an outer pipe and an inner pipe arranged in a sliding sleeve;

[0036] a first locking device, sleeved on the outer periphery of the tube assembly and acting on the inner tube, for maintaining the relative position of the outer tube and the inner tube;

[0037] The base assembly is fixedly connected to both ends of the tube assembly and includes:

[0038] A connecting base, one side of which is connected to the inner tube and the other side of which is provided with a first guide portion;

[0039] The main base has one side covered with anti-slip glue for tightening, and the other side is provided with an inclined surface that slides with the first guide portion in the vertical direction;

[0040] an auxiliary base, rotatably connected to the connecting base and the main base and located below the connecting base and the main base, with one side surface flush with the side surface of the main base;

[0041] The hinged arms between the connecting base, the auxiliary base and the main base are arranged in a U shape.

[0042] Optionally, the main base is provided with a slide groove extending in a vertical direction, and the connecting base is provided with a guide column slidably engaged with the slide groove.

[0043] Optionally, the auxiliary base is provided with a top block and a push switch for supporting the top block against the door frame or the wall, and a spring for driving the top block to slide toward the push switch.

[0044] In summary, the fitness horizontal bar of the present application can not only prevent relative rotation between the outer tube and the inner tube, but also provide sufficient clamping force to ensure a tight fit between the horizontal bar and the door frame or wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the structure of this application;

[0046] Figure 2 This is an exploded view of the first locking device in this application;

[0047] Figure 3 This is a structural diagram of the first locking device in the unlocked position in this application;

[0048] Figure 4 This is a structural diagram of the first locking device in the present application in the locking position;

[0049] Figure 5 This is an exploded view of the second locking device in this application;

[0050] Figure 6-Figure 7 This is a schematic diagram of the use process of the second locking device in this application;

[0051] Figure 8 This is an exploded view of the base assembly in this application;

[0052] Figure 9 A schematic diagram of the structure of the components in this application;

[0053] Figure 10 This is a schematic diagram of the structure of the connection base in this application;

[0054] Figure 11-12 This is a schematic diagram of the base assembly usage process in this application.

[0055] The reference numerals in the figures are described as follows:

[0056] 1, pipe assembly; 11, outer pipe; 12, inner pipe; 121, strip-shaped clamping groove;

[0057] 2, base assembly; 21, anti-skid glue; 22, connecting base; 221, guide column; 222, first guide part; 23, main base; 231, anti-skid glue; 232, inclined surface; 233, sliding groove; 24, auxiliary base; 241, top block; 242, press switch; 243, spring; 25, first hinged arm; 26, second hinged arm;

[0058] 3, first locking device; 31, clamping strip; 32, shell; 321, first shell; 322, annular clamping groove; 323, locking pin hole; 324, second shell; 325, elastic member; 33, polygonal through hole; 34, lock cylinder; 341, connecting lug; 342, guide column; 35, locking switch;

[0059] 4, second locking device; 41, adapter pipe; 42, transmission nut; 43, transmission screw; 44, fine adjustment nut; 45, driving member. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0061] It should be noted that when an assembly is referred to as being "connected" to another assembly, it can be directly connected to the other assembly or there can be a middle assembly. When an assembly is referred to as being "disposed on" another assembly, it can be directly disposed on the other assembly or there can be a middle assembly.

[0062] In the present application, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, order, and the like of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, and the like, unless otherwise explicitly and specifically limited.

[0063] In this application, the terms "corresponding," "corresponding," and "matching," such as "B corresponding to A," "B corresponding to A," "A corresponds to B," or "B corresponds to A," indicate that B corresponds to A in shape, position, or function, and that B can be determined based on A. Determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0064] In this application, terms such as "center", "length", "width", "thickness", "top", "bottom", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "axial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in certain drawings, or based on the spatial posture of the product under normal use. Of course, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the position or component referred to must have a specific orientation, a specific structure and operation, and therefore cannot be understood as a limitation to this application.

[0065] In the prior art, both the inner and outer tubes of horizontal bars are round tubes, and the general locking device can only lock in the axial direction, but not in the circumferential direction. As a result, when the user applies a twisting force, the inner and outer tubes of the horizontal bar are prone to relative rotation, further causing the horizontal bar to loosen or even fall off. The fitness horizontal bar of the present application aims to overcome this technical problem by being able to lock the inner and outer tubes in both the axial and circumferential directions, providing greater locking force, and ultimately achieving the purpose of preventing the horizontal bar from falling off.

[0066] Reference Figures 1 to 4 An embodiment of the present application provides an anti-fall fitness horizontal bar, including a tube assembly 1, a base assembly 2, and a first locking device 3, wherein the tube assembly constitutes the main body of the horizontal bar, the base assembly 2 is two and is located at both ends of the tube assembly respectively, and the first locking device 3 is used to maintain the relative position between the outer tube and the inner tube.

[0067] The pipe assembly 1 has relative axial, radial and circumferential directions, such as Figure 1 The horizontal direction is the axial direction of the pipe assembly, and the radial direction (perpendicular to the axial direction) and the circumferential direction (around the pipe assembly) can be defined relative to the axial direction.

[0068] The tube assembly 1 includes an outer tube 11 and an inner tube 12 that are slidably mounted. The outer tube 11 is a hollow circular tube, and the inner tube 12 is a polygonal tube. Preferably, the inner tube can be a quadrilateral tube, a hexagonal tube, or an octagonal tube. More preferably, the inner tube is a hexagonal tube.

[0069] The inner tube wall is provided with a plurality of strip grooves 121 extending radially. The radial direction can be understood as the direction perpendicular to the axial direction, or as the direction parallel to the door frame or wall when the horizontal bar is installed. As an example, the cross section of the strip groove 121 is U-shaped. Figure 1 and Figure 3 The strip slot has three surfaces, namely, two side surfaces that are planar with each other and a bottom surface that is perpendicular to the side surfaces.

[0070] The base assembly 2 is fixedly connected to both ends of the tube assembly. The fixed connection here can be understood as the relative positions of the base assembly and the tube assembly remain unchanged, that is, the two are linked. One side of the base assembly 2 is covered with anti-slip glue 21, which is used to press against the door frame or wall.

[0071] The first locking device 3 is fixedly sleeved on the outer periphery of the outer tube 11. The fixed sleeve here can be understood as the first locking device being sleeved on the outer periphery of the outer tube and the relative position of the two always remains unchanged, that is, the two are linked. As a preferred embodiment, Figure 2 Pin holes can be opened at corresponding positions on both sides of the first locking device and the outer tube. When the two are assembled in place, the pins are inserted, and the first locking device and the outer tube are fixed. The two will not deflect during use.

[0072] The first locking device 3 is provided with a polygonal channel adapted to fit within the inner tube 12 and allowing the inner tube to slide. Due to the anti-rotation effect of the polygon, the first locking device and the inner tube will not deflect during use. Therefore, in this embodiment, the cooperation between the polygonal inner tube, the outer tube, and the first locking device prevents circumferential deflection between the inner and outer tubes even when the horizontal bar is subjected to a torsional force, that is, the inner and outer tubes are circumferentially locked.

[0073] A plurality of clip strips 31 adapted to the strip slots 121 are provided inside the polygonal channel to maintain the relative position of the outer tube and the inner tube. Figure 1 As shown, multiple clamping strips are engaged with the strip-shaped clamping slots at the same time, thereby ensuring the axial locking of the outer tube and the inner tube. Figure 4 As shown, since the clamping strip and the strip-shaped clamping groove both extend radially for a certain length, the circumferential locking of the outer tube and the inner tube is further ensured, ensuring that the two will not produce circumferential deflection during use.

[0074] The card strip 31 has a locking position (such as Figure 4 As shown), the unlocked position disengaged from the card slot (as shown Figure 3 ), as shown in Figure 4 As shown, when the clip is inserted into the U-shaped slot, the inner tube is restricted and locked in both the axial and circumferential directions. In addition, the user can easily switch the state of the first locking device, making the installation of the horizontal bar more convenient.

[0075] Because the inner tube is a polygonal tube, and the clamping strip of the first locking device is engaged with the bar-shaped clamping groove on the inner tube at multiple locations, when the first locking device is in the locking position, the inner tube and the outer tube always maintain a relative position, are locked in both the circumferential and axial directions, and the two will not deflect, and the relative position remains unchanged, thereby ensuring that the inner tube and the outer tube always maintain their original relative position during use, avoiding the problem of the horizontal bar loosening and falling off due to the relative rotation of the inner and outer tubes, and overcoming the structural defects of the horizontal bar in the prior art.

[0076] In some embodiments, the first locking device 3 mainly includes a shell 32, a lock core 34, and a locking switch 35, wherein one end of the shell 32 is fixedly connected to the outer tube 11 (preferably, a pin can be used for fixed connection), and the other end is provided with a polygonal through hole 33 matching the shape of the inner tube, that is, the above-mentioned polygonal channel, for the inner tube to slide axially relative to the outer tube.

[0077] The lock core 34 is built into the shell and can move radially. A plurality of spaced parallel ribs are provided on the top of the lock core to form a plurality of card strips 31 adapted to the bar slots. The lock core has an extreme position for sliding downward (radially downward). At this position, the card strip is engaged with the bar slot. When the lock core slides radially upward, it enters the unlocking position, that is, the card strip is disengaged from the bar slot.

[0078] The locking switch 35 is rotatably connected to the housing and has a locking position (such as Figure 4 As shown), the unlocked position where the drive card strip is disengaged from the bar card slot (as shown Figure 3 For example Figure 3 As shown, the locking switch rotates along the arrow direction, and the lock core slides radially downward to lock the position. Figure 4 When the lock switch 35 is in the position shown in the figure, the inner and outer tubes are locked. The locking switch 35 is partially extended outside the housing so that the user can quickly apply force and drive the lock core to lock.

[0079] In some embodiments, the housing 32 includes a first housing 321 and a second housing 324 that are fastened to each other.

[0080] The first housing 321 is provided with an annular groove 322 adapted to the shape of the outer tube, and a plurality of locking pin holes 323 for fasteners to pass through are symmetrically provided on the sidewall of the annular groove.

[0081] The second housing 324 is provided with an elastic member 325 for driving the lock core to slide radially in the direction of the locking switch. Figure 3 As shown, when the locking switch is in the free state, the elastic member 325 automatically resets and pulls the lock core back to the unlocked position.

[0082] In some embodiments, the lock core 34 is in the shape of a hollow quadrilateral ring for the inner tube to pass through, and connecting ears 341 for fixing the elastic member are symmetrically provided on both sides of the lock core.

[0083] In some embodiments, the bottom of the lock core is provided with a guide column 342 that slides radially with the housing. Figure 3 The bottom of the housing 32 is provided with a through hole matching the guide post, serving as a sliding limit channel for the guide post.

[0084] In the above embodiment, the adjustment accuracy of the axial length of the horizontal bar is controlled by the spacing of the bar slots to adapt to the lengths between different walls and door frames, but in actual applications, this adjustment accuracy is still limited. The following embodiment adds a second locking device, which can more accurately adjust the axial length of the horizontal bar.

[0085] In some embodiments, the fitness horizontal bar further includes a second locking device 4 connected between the inner tube and the base assembly, including a connecting tube 41 , a transmission nut 42 , a transmission screw 43 , and a fine-tuning nut 44 .

[0086] The connecting pipe 41 has the same shape as the inner pipe and is used to connect the inner pipe and the base to ensure balanced force on the pipes on both sides.

[0087] There are two transmission nuts 42, which are respectively embedded in the connecting tube and the inner tube and linked with the corresponding tubes. Preferably, the transmission nut is a hexagonal nut, and the connecting tube and the inner tube are both hexagonal tubes. The transmission nut can be completely fixed inside the connecting tube and the inner tube by welding, bonding, etc., so that no axial displacement will occur during use.

[0088] The transmission screw 43 is slidably built into the inner tube and the connecting tube and is in transmission connection with the two transmission nuts. The fine adjustment nut 44 is threadedly connected to the transmission screw and is located between the two transmission nuts, and is used to drive the transmission screw to rotate to extend or shorten the axial distance between the two transmission nuts. Figure 6 The figure shows the initial position of the second locking device. At this time, the axial distance between the two drive nuts is the shortest, and the fine-tuning nut is located between the drive nuts and is supported on both sides by the inner tube and the connecting tube. When the fine-tuning nut is rotated, the transmission screw drives the inner tube or the connecting tube to move under the transmission action of the thread, thereby lengthening the axial distance between the two drive nuts. Figure 7 As shown, the final result is that the overall length of the horizontal bar is fine-tuned, and the base assembly is further tightened against the wall.

[0089] In some embodiments, the second locking device further includes a driving member 45 sleeved on the outer periphery of the fine-tuning nut to increase the force application area and facilitate the user to apply force.

[0090] In some of the above-mentioned embodiments, a horizontal bar with a combined structure of a first locking device and a second locking device is used. When installing, the user can quickly pull out the polygonal inner tube from the circular outer tube to a certain length, and then turn the locking switch to clamp the lock core and the inner tube, so that the first locking device locks the outer tube and the inner tube axially and circumferentially; and then fine-tune the fine-tuning nut of the second locking device to continue to extend the total length of the horizontal bar, so that the connecting tube continues to press against the base assembly, thereby further enhancing the pressing force and improving the anti-falling effect.

[0091] In the prior art, most horizontal bars are only equipped with a locking device, which is mainly used to quickly lock the inner tube from the outer tube after the inner tube is pulled out to a certain length. This locking device can only be used for a rough installation and cannot be used to fine-tune the length of the horizontal bar or provide more tightening force. In order to achieve a secondary fine-tuning of the length of the tube assembly, the tube assembly can provide more tightening force to the base assembly, so that the fit between the base and the door frame or wall is not easy to loosen, refer to Figure 1 、 Figures 5 to 7 The present application also provides a non-falling fitness horizontal bar, comprising a tube assembly 1, a base assembly 2, a first locking device 3, and a second locking device 4. The first locking device 3 can quickly lock the relative positions of the inner and outer tubes, enabling rapid installation of the horizontal bar. After the initial installation is completed, the second locking device can further extend the overall length of the tube assembly, continuing to apply a tightening force to the base assembly, achieving a fine-tuning and tightening effect, thereby further preventing the horizontal bar from falling.

[0092] The pipe assembly 1 has relative axial, radial and circumferential directions, and includes an outer pipe 11 and an inner pipe 12 that are slidably sleeved. The inner pipe is a polygonal pipe and can be combined with the above embodiments.

[0093] The base assembly 2 is fixed at both ends of the pipe assembly, and one side is covered with anti-slip glue for pressing against the door frame or wall, which can be combined with the above embodiments.

[0094] The first locking device 3 is sleeved on the outer periphery of the pipe assembly and locally acts on the inner pipe to maintain the relative position of the outer pipe and the inner pipe. It can be combined with the quick locking structure in the prior art or the locking structures of the above embodiments.

[0095] The second locking device 4 is used to connect the inner tube and the base assembly, including a connecting tube 41, a transmission nut 42, a transmission screw 43, and a fine-tuning nut 44. The connecting tube 41 is consistent in shape with the inner tube and is used to connect the inner tube and the base. There are two transmission nuts 42, which are respectively embedded in the connecting tube and the inner tube and linked with the corresponding tubes. The transmission screw 43 is slidably built into the inner tube and the connecting tube, and is connected to the two transmission nuts. The fine-tuning nut 44 is connected to the transmission screw and is located between the two transmission nuts, and is used to drive the transmission screw to rotate to extend or shorten the axial distance between the two transmission nuts. The second locking device 4 can be combined with the structure described in the above embodiment.

[0096] In order to provide more compensatory force to the base assembly during use, so that the fit between the base and the door frame or wall is not easy to loosen, refer to Figure 1 、 Figures 8 to 12 The present application also provides a non-drop fitness horizontal bar, comprising a tube assembly 1, a first locking device 3, and a base assembly 2. Tube assembly 1 has relative axial, radial, and circumferential directions, and comprises an outer tube and an inner tube that are slidably sleeved. The outer tube is a circular tube, and the inner tube can be a circular tube or a polygonal tube (in combination with the above embodiments). The first locking device 3 is sleeved around the outer circumference of the tube assembly and acts on the inner tube. It has a channel adapted to fit the inner tube and allows the inner tube to slide, which is used to maintain the relative position of the outer and inner tubes. It can be combined with the above embodiments or the quick-locking structure of the prior art.

[0097] The base assembly 2 is fixed to both ends of the tube assembly and mainly includes a connecting base 22, a main base 23, and an auxiliary base 24. Among them, one side of the connecting base 22 is connected to the inner tube, and the other side is provided with a first guide portion 222, which is preferably a sloped structure or a slope formed by a combination of multiple reinforcing ribs.

[0098] One side of the main base 23 is covered with anti-slip glue 231 for tightening, and the other side is provided with an inclined surface 232 that slides with the first guide part in the vertical direction. The relative position between the connecting base and the main base can be changed by the sliding fit of the first guide part 222 and the inclined surface 232.

[0099] The auxiliary base 24 is pivotally connected to the connecting base and the main base, and is positioned below both. One side of the auxiliary base 24 is covered with anti-slip adhesive and is flush with the side of the main base. When the horizontal bar is installed, the main base and the auxiliary base simultaneously press against the wall or door frame, increasing the contact area and further enhancing the holding force compared to existing horizontal bars.

[0100] The articulated arms connecting the base, auxiliary base and main base are arranged in a U shape. Figure 9As shown, the first hinge point connecting the base and the auxiliary base is point G indicated by the arrow, the second hinge point connecting the main base and the auxiliary base is point H indicated by the arrow, the first hinge arm 25 is between the first hinge point G and the second hinge point H, and the second hinge arm 26 is between the second hinge point H and the main base. The first hinge arm 25 and the second hinge arm 26 are arranged in a U shape as a whole.

[0101] like Figure 11 、 Figure 12 When the first hinge point G is subjected to a downward force (i.e., the user applies downward force A), the connecting base also slides downward along the slope relative to the main base (in the direction indicated by arrow B in the figure). At this time, the force will be transmitted to the auxiliary base through point G. Due to the tight pressure from the bottom of the auxiliary base, the auxiliary base will produce a very small counterclockwise deflection around point H (in the direction indicated by arrow E). Finally, the auxiliary base converts the rotational force into a compensating pressure force (in the direction indicated by arrow F) that supports the main base upward through the second hinge arm 26. It can be seen that the more downward force the user applies, the greater the pressure between the main base and the wall. During use, the downward force applied by the user becomes the compensating pressure force of the main base, thereby ultimately enhancing the anti-fall effect.

[0102] In some embodiments, the main base is provided with a slide groove 233 extending in the vertical direction, and the connecting base is provided with a guide column 221 that slides with the slide groove. The slide groove can limit the sliding distance of the connecting base to prevent the connecting base and the main base from being separated. More preferably, a limiting bolt (such as Figure 10 as shown), the anti-separation effect is better.

[0103] In some embodiments, as Figure 8 As shown, the auxiliary base is equipped with a top block 241, a push switch 242 for holding top block 241 against the door frame or wall, and a spring 243 that drives the top block toward the push switch. Top block 241 can be pressed directly against the door frame or wall, or it can be further pressed against the door frame or wall by pressing against non-slip adhesive. Push switch 242 is rotatably connected to the auxiliary base, and the user can eject the top block by rotating push switch 242. When in a free state, the top block is reset by the restoring force of spring 243.

[0104] In addition, the horizontal bar can also be equipped with a rubber sleeve on the outer tube to enhance the comfort of the user, and a spirit level can be arranged in the middle of the outer tube to make the installation process more stable and reliable.

[0105] In summary, the fitness horizontal bar of the present application can not only completely lock the outer tube and the inner tube to avoid relative rotation between the outer tube and the inner tube during use, but also provide sufficient tightening force to ensure that the horizontal bar fits tightly with the door frame or wall, and has a good anti-falling effect.

[0106] The technical features of the above-described embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as no contradiction exists between these combinations of technical features, they should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be deemed that the drawing also discloses examples of combinations of the various embodiments involved.

[0107] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present application, and such modifications and improvements are all within the scope of protection of the present application.

Claims

1. A non-falling fitness horizontal bar, characterized in that: include: The tube assembly has relative axial, radial and circumferential directions, and includes an outer tube and an inner tube that are slidably sleeved, wherein the outer tube is a circular tube, and the inner tube is a polygonal tube with a plurality of strip-shaped slots extending along the radial direction spaced apart on the tube wall; The base assembly is fixed at both ends of the tube assembly, and one side is covered with anti-slip glue for pressing against the door frame or wall; The first locking device is fixedly sleeved on the outer circumference of the outer tube, and is provided with a polygonal channel adapted to the inner tube and for the inner tube to slide, and the polygonal channel is provided with a plurality of clips adapted to the bar slots for maintaining the relative position of the outer tube and the inner tube, and the clips have a locking position engaged with the bar slots and an unlocking position disengaged from the bar slots.

2. The fitness horizontal bar according to claim 1, characterized in that: The first locking device comprises: A shell, one end of which is fixedly connected to the outer tube, and the other end of which is provided with a polygonal through hole matching the shape of the inner tube, allowing the inner tube to slide relative to the outer tube; A lock core is built into the housing and is movable along the radial direction, wherein a plurality of ribs are provided on the top of the lock core to form a card strip adapted to the strip-shaped card slot; The locking switch is rotatably connected to the shell and partially extends out of the shell, and has a locking position for driving the card strip to cooperate with the bar card slot and an unlocking position for driving the card strip to disengage from the bar card slot.

3. The fitness horizontal bar according to claim 1, characterized in that The inner tube is a quadrilateral tube, a hexagonal tube or an octagonal tube.

4. The fitness horizontal bar according to claim 2, characterized in that: The housing includes: The first housing is provided with an annular groove adapted to the shape of the outer tube, and the side wall of the annular groove is symmetrically provided with multiple locking pin holes for fasteners to pass through; The second housing is provided with an elastic member for driving the lock core to slide radially toward the locking switch.

5. The fitness horizontal bar according to claim 4, characterized in that: The lock core is in the shape of a hollow quadrilateral ring for the inner tube to pass through, and connecting ears for fixing the elastic member are symmetrically provided on both sides of the lock core.

6. The fitness horizontal bar according to claim 5, characterized in that: The bottom of the lock core is provided with a guide column which is radially slidingly matched with the housing.

7. The fitness horizontal bar according to claim 1, characterized in that: The fitness horizontal bar further includes a second locking device connected between the inner tube and the base assembly, including: A connecting tube, having the same shape as the inner tube and used to connect the inner tube and the base assembly; There are two transmission nuts, which are respectively embedded in the connecting tube and the inner tube and linked with the corresponding tubes; A transmission screw is slidably built into the inner tube and the connecting tube and is transmission-connected to the two transmission nuts; The fine-tuning nut is connected to the transmission screw and is located between the two transmission nuts, and is used to drive the transmission screw to rotate to extend or shorten the axial distance between the two transmission nuts.

8. The fitness horizontal bar according to claim 7, characterized in that: The second locking device also includes a driving member sleeved on the outer periphery of the fine-tuning nut.

9. An anti-falling fitness horizontal bar, characterized in that: include: The pipe assembly has relative axial, radial and circumferential directions, and includes an outer pipe and an inner pipe that are slidably sleeved, wherein the inner pipe is a polygonal pipe; The base assembly is fixed at both ends of the tube assembly, and one side is covered with anti-slip glue for pressing against the door frame or wall; a first locking device, which is sleeved on the outer periphery of the tube assembly and locally acts on the inner tube to maintain the relative position of the outer tube and the inner tube; The second locking device is used to connect the inner tube and the base assembly, including: A connecting tube, having the same shape as the inner tube and used to connect the inner tube and the base; There are two transmission nuts, which are respectively embedded in the connecting tube and the inner tube and linked with the corresponding tubes; A transmission screw is slidably built into the inner tube and the connecting tube and is transmission-connected to the two transmission nuts; The fine-tuning nut is connected to the transmission screw and is located between the two transmission nuts, and is used to drive the transmission screw to rotate to extend or shorten the axial distance between the two transmission nuts.

10. An anti-falling fitness horizontal bar, characterized in that: include: A pipe assembly having relative axial, radial and circumferential directions, comprising an outer pipe and an inner pipe arranged in a sliding sleeve; a first locking device, sleeved on the outer periphery of the tube assembly and acting on the inner tube, for maintaining the relative position of the outer tube and the inner tube; The base assembly is fixedly connected to both ends of the tube assembly and includes: A connecting base, one side of which is connected to the inner tube and the other side of which is provided with a first guide portion; The main base has one side covered with anti-slip glue for tightening, and the other side is provided with an inclined surface that slides with the first guide portion in the vertical direction; an auxiliary base, rotatably connected to the connecting base and the main base and located below the connecting base and the main base, with one side surface flush with the side surface of the main base; The hinged arms between the connecting base, the auxiliary base and the main base are arranged in a U shape.

11. The anti-fall fitness horizontal bar according to claim 10, characterized in that: The main base is provided with a sliding groove extending in a vertical direction, and the connecting base is provided with a guide column slidably matched with the sliding groove.

12. The anti-fall fitness horizontal bar according to claim 10, characterized in that: The auxiliary base is provided with a top block, a push switch hinged to the auxiliary base and used to support the top block against the door frame or wall, and a spring driving the top block to slide toward the push switch.

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