JP6718529B2 - Horizontal bar device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of sports equipment, and relates to a horizontal bar apparatus, and more particularly to a height-adjustable horizontal bar apparatus.

With the development of science and technology, people are gradually becoming more conscious of physical training, but for various reasons, most people do not want to go to the gym, buy a home fitness machine, and train at home. It seems to be highly motivated.

The conventional horizontal bar frame is a general fitness equipment, and when mounted in a room, it is necessary to adjust the height of the horizontal bar according to the height of the user. In the conventional iron rod frame, usually, a hole is opened in a mounting pipe, the iron rod is inserted into a hole of a corresponding height, and the iron rod is fixed to the mounting pipe by a bolt. For example, a Chinese patent application (application number: 201420167172.3) discloses an adjustable tetrahedral iron bar. Includes the bottom frame, four columns are connected to the bottom frame, the columns are provided with a plurality of horizontal positioning holes and a plurality of vertical positioning holes, and the horizontal iron rods are supported by the horizontal positioning holes and the horizontal positioning screws. Then, fix the vertical iron bar to the column with the vertical positioning hole and the vertical positioning screw.

In the process of use, the iron bar is vertically gripped by a person's hand, so that the iron bar receives a vertically downward force. Since the tightening screw fixes the sleeve cylinder to the pillar along the radial direction of the strut, the contact point between the tightening screw and the sleeve cylinder receives a downward force, which causes The attached screw is easily deformed or broken at this location. Also, since the iron rod is a straight rod shape, when a person operates with the iron rod, the iron rod is deformed downward at the force receiving portion, so that the sleeve cylinders at both ends of the iron rod are pulled inward, and the tightening screws are attached to the sleeve cylinder. On the other hand, due to the tendency to move outward, the tightening screw is likely to be detached from the column or to be torn, and the stability of the horizontal bar frame is deteriorated. Further, when the iron bar frame is not used, the iron bar frame can only be detached and stored, which makes it inconvenient to attach and detach the iron bar frame.

It is an object of the present invention to provide a horizontal bar system to the above problems existing in the prior art. The problem to be solved by the present invention is to easily adjust the iron bar and improve the stability.

The object of the present invention can be achieved by the following technical solutions. At least three support poles provided vertically and a horizontal bar connected between two adjacent support poles, and a plurality of sleeve cylinders are further fitted onto the upper portions of the respective support poles. Steel bars that are vertically stacked, each end of which is fixedly connected to one of the sleeve cylinders, and each support pole has a blocking structure that prevents the sleeve cylinders from sliding down. apparatus.

A solid frame can be constructed with three support poles. It is also possible to construct a three-dimensional frame with three or more support poles, for example, four or five, to stand on the ground. A sleeve cylinder is fixedly connected to both ends of the horizontal bar, and is stacked vertically on a support pole together with other sleeve cylinders. Due to the different stacking order, the height of the horizontal bar is different, and the stacking up and down in this way does not require insertion and contact by pins, and the horizontal bar is connected horizontally to the sleeve cylinder, so the force receiving direction is the sleeve. It is only in the axial direction of the cylinder, there is no shearing force in the radial direction, and stability is improved.

According to the iron rod device, the blocking structure may be an annular positioning surface that comes into contact with the lower end surface of the sleeve cylinder of the support pole. The shape of the annular positioning surface may be the end surface of the tubular body, a compression-molded convex shoulder, or a separately-installed convex shoulder. The blocking structure may be a pin or blocking block connected to the support pole and projecting out.

According to the above iron rod apparatus, the vertically stacked sleeve tubes have a positioning structure that strongly presses the sleeve tubes against the blocking structure by the sleeve tube and the fastener, and prevents the sleeve tubes from rotating between the adjacent sleeve tubes. Have. When the tightening tool is loosened, the positioning by the positioning structure is released, and when there are four or more support poles, the iron rod device can be folded. This is because both ends of the horizontal bar are rotatably connected to the support pole via the sleeve cylinder, and four or more horizontal bars form a movable polygonal structure, and the stability of the horizontal bar device expanded by the positioning structure. It is because that can be improved.

According to the iron rod device, the shape of the support pole is improved as follows. The leg tube of the support pole includes an inclined portion, and the inclined portion may have a masonry structure or an integral structure, and the upper end of the inclined portion is bent upward so that the vertical attachment portion is formed. And the lower end is bent downward to form a vertical support part, the support part is connected to a pad plate, each pad plate has a vertical connection part on the upper surface, and the support part is connected to the connection part. Insert and connect.

The masonry type inclined portion includes at least two pipe bodies, and the two pipe bodies are connected to each other via a connecting pipe inserted between the two pipe bodies. With such a structure, the height adjustment range is widened.

Compared with the prior art, the horizontal bar device of the present invention has the following advantages.
1.In the process of use, when the horizontal bar is grasped by a person's hand, the horizontal bar receives a vertically downward force, the sleeve cylinder connected to the horizontal bar receives a downward force, and the force receiving direction is the sleeve. Since it is only in the axial direction of the cylinder, the blocking structure is formed at the annular positioning surface, especially at the end face of the support pole, when the stacked sleeve tubes transfer the force to the blocking structure without being subjected to radial shear forces. Since it is the annular positioning surface, the force received by the blocking structure is also along the axial direction, and therefore the stability is very high. The fastening tool connected to the fastening sleeve tube receives neither the shearing force nor the pressing force of the sleeve tube connected to the horizontal bar but only the fastening force of itself, so that the stability of the connection is guaranteed.
2. When the tightening tool is rotated and moved to the outside by a certain distance, both the sleeve cylinder and the tightening sleeve tube are loosened. In this case, the two support poles in a diagonal relationship can be brought close to each other by an external force. When the two support poles in a diagonal relationship come into contact with each other, the iron rod device becomes flat as a whole, so that the iron rod device can be folded and stored conveniently.

FIG. 3 is a schematic diagram of a three-dimensional structure when the horizontal bar device of Example 1 is expanded. FIG. 2 is an exploded schematic view of part of FIG. FIG. 3 is an enlarged schematic diagram of A in FIG. 5 is a schematic diagram of a cross-sectional structure of the upper end of the support pole of Example 1. FIG. 5 is a schematic diagram of an enlarged structure of B in FIG. 4. FIG. 7 is two different blocking structures in the second embodiment. FIG. 9 is a schematic structural diagram of a tilted portion of a support pole in Example 3. FIG. 8 is a schematic enlarged sectional view of an enlarged portion of Example 3. FIG. 6 is a structural schematic diagram of a horizontal bar arrangement of Example 4.

Support pole 1; blocking structure 13; leg tube 1a;
Inclined portion 1a1; Mounting portion 1a2; Support portion 1a3;
Annular end face 1a4; straight pipe 1b; sleeve cylinder 2;
Lower end face 2a; Horizontal bar 3; Tightening sleeve tube 4;
Pressure receiving surface 4a; Clamp 5; Annular positioning surface 6;
Notch 7; protrusion 8; pad plate 9;
Connection 9a; beam 10; nut 11;
Convex shoulder 1a5; blocking block 1a6; tube 1a11;
Connection tube 1a7; screw 15

Hereinafter, specific embodiments of the present invention will be shown, and the technical solutions of the present invention will be further described with reference to the drawings. The present invention is not limited to these examples.

Example 1
The horizontal bar device can be folded or disassembled for storage, or can be expanded and set upright on a horizontal ground as a three-dimensional frame. The horizontal bar apparatus shown in FIG. 1 is in the form of an expanded three-dimensional frame and includes four support poles 1 arranged in a rectangle. A sleeve sleeve 2 having a cylindrical shape is fitted onto the upper end of each support pole 1. The sleeve cylinder 2 may have a structure similar to another cylindrical shape, for example, a shape in which the outer surface is quadrangular. The sleeve cylinders 2 are vertically stacked, and a horizontal bar 3 is provided between any two adjacent support poles 1.One sleeve cylinder 2 is fixedly connected to each end of each horizontal bar 3, Thus, each horizontal bar 3 can independently slide up and down along the support pole 1. The fixed connection method between the horizontal bar 3 and the sleeve cylinder 2 may be welding, or may be fixed connection by integral molding. Both ends of the horizontal bar 3 are bent downward so that the horizontal bar 3 has an arch structure. Here, the arched direction is the vertical direction. Due to such a structure, even if the middle part of the horizontal bar is subjected to a vertically downward acting force in the use process, both ends of the horizontal bar 3 form a bending part, so that all the stress is concentrated at the bending position of the horizontal bar. Therefore, the middle portion of the horizontal bar 3 is unlikely to be deformed.

A blocking structure (13) for preventing the sleeve cylinder (2) from slipping off is provided on the outer peripheral surface of the upper end portion of the support pole (1). Two or more sleeve cylinders 2 are provided on each of the support poles 1, and the lowest sleeve cylinder 2 abuts on the blocking structure 13. A tightening sleeve tube (4) for strongly pressing the sleeve cylinder (2) together with the blocking structure (13) is externally fitted to the upper end of the support pole (1), and the tightening sleeve tube (4) is tightened on the support pole (1) via a tightening tool (5).

As shown in FIGS. 2 and 3, the blocking structure 13 is the annular positioning surface 6 of the support pole 1. A part A in the upper left corner of FIG. 2 is a schematic view of a three-dimensional structure in which a part of the sleeve cylinder 2 is removed. FIG. 3 is an enlarged view of a portion A of FIG. Each support pole 1 further includes a leg tube 1a and a straight tube 1b (see FIG. 5). The straight pipe 1b is inserted and fixed in the upper end of the leg pipe 1a. The annular positioning surface 6 is the annular end surface 1a4 at the upper end of the leg tube 1a. The sleeve cylinders 2 have the same size and are vertically stacked and fitted on the outside of the straight pipe 1b. The lower end surface 2a of the lowermost sleeve cylinder 2 overlaps with the annular positioning surface 6. In this way, the sleeve tube 2 is blocked and cannot be displaced downwards. Since the upper end surface of the pipe leg 1a has the blocking structure, when the pipe leg 1a receives a force, the pipe leg 1a receives an axial force rather than a radial force, so that the stability of receiving force is improved.

In order to further improve the stability, as shown in FIG. 3, a positioning structure for preventing rotation of the sleeve cylinders is provided between the adjacent sleeve cylinders 2. The positioning structure includes a notch 7 provided on the upper end surface of the sleeve cylinder 2 and a protrusion 8 provided on the lower end surface of the sleeve cylinder 2. The positioning protrusions 8 and the notches 7 of two adjacent sleeve cylinders 2 are fitted to each other. There are a plurality of notches 7 and positioning protrusions 8 in the sleeve cylinder 2, and they are evenly distributed along the circumferential direction. The annular positioning surface 6 is provided with a notch 7 that prevents the sleeve cylinder 2 from rotating. The shapes of the notch and the protrusion are arbitrary. The same positioning effect can be achieved even if the notches and protrusions are interchanged. The position of the sleeve cylinder 2 is limited in the circumferential direction of the support pole 1, that is, the sleeve cylinder 2 cannot rotate with respect to the support pole 1, so that the stability is improved.

When the horizontal bar device is expanded to form a three-dimensional frame, as shown in FIG. 5, the nut 11 is fixedly connected in the upper end of the straight pipe 1b, and the tightening sleeve pipe 4 is externally fitted to the upper end of the straight pipe 1b. It The upper end surface of the tightening sleeve tube 4 is a pressure receiving surface 4a, and the tightening tool 5 is a bolt. The cap edge of the bolt presses the pressure receiving surface 4a. The lower end of the bolt passes through the pressure receiving surface 4a and is connected to the nut 11 inside the straight pipe 1b of the support pole 1 by a screw thread. There is a spring gasket 1b fitted over the bolt between the cap edge of the bolt and the pressure receiving surface 4a, and the spring gasket 1b abuts the cap edge of the bolt and the pressure receiving surface 4a, respectively. When the bolt is tightened, the sleeve cylinder 2 is tightened between the tightening sleeve tube 4 and the blocking structure 13, and the iron rod device in which the three-dimensional frame is expanded by the positioning by the positioning structure has a very stable structure. ..

The sleeve cylinder 2 fitted onto the straight pipe 1b can rotate about the straight pipe 1b. When the iron rod device is to be stored, by loosening the fastening tool 5 and releasing the pressing state of the fastening sleeve tube 4, a sufficient gap is released between the sleeve cylinders 2 to release the restriction due to the positioning structure. Yes, the sleeve cylinder 2 is in a freely rotatable state, and the two support poles 1 in a diagonal relationship are pressed to approach toward the center, and at the same time, another pair of support poles in a diagonal relationship 2 By moving 1 to the outside, the horizontal bar device is flatly folded and stored.

To further facilitate storage, the four support poles 1 are tubular poles, each support pole 1 including a leg tube 1a (see FIG. 2), as shown in FIGS. Includes a slanted portion 1a1, the upper end of the slanted portion 1a1 is bent upward to form a vertical mounting portion 1a2, and the lower end is bent downward to form a vertical support portion 1a3. 1 has a pyramidal structure, so that the iron bar does not easily swing during the use process. The mounting portion 1a2 is a tubular body having an inner diameter smaller than the inner diameter of the inclined portion 1a1. The straight pipe 1b is inserted and contacted so as to be in close contact with the inside of the mounting portion 1a2, the pad plate 9 is connected to the support portion 1a3, the upper surface of each pad plate 9 has a vertical connection portion 9a, the support portion 1a3 Are inserted into and connected to the connecting portion 9a. The four pad plates 9 are evenly divided into two sets, and the pad plates 9 of each set are connected via a beam 10. The beam 10 connects the two support poles 1 in each set of pad plates 9 together. As a result, the support poles 1 in a diagonal relationship cannot be approached even by the action of external force, so that the stability of use of the iron rod frame is improved.

This horizontal bar device is used by placing it on the horizontal ground. The sleeve cylinder 2 is sequentially fitted onto the support pole 1 vertically, and the sleeve cylinder 2 of each horizontal bar 3 is arranged at the corresponding height as required, and finally the tightening sleeve tube 4 is fitted and tightened. The tool (5) strongly presses the sleeve tube (2) between the blocking structure (13) and the tightening sleeve tube (4). The sleeve cylinder is made non-rotatable by the positioning structure with respect to the support pole, and finally the pad plate 9 is inserted and contacted to form a stable three-dimensional frame. In the process of use, when a person's hand grips the horizontal bar, the horizontal bar receives a vertically downward acting force, and the sleeve cylinder 2 connected to the horizontal bar does not receive an upward pressing force, only a downward force. In this case, the tightening tool 5 connected to the tightening sleeve tube 4 does not receive the shearing force and the pressing force of the sleeve cylinder 2 connected to the horizontal bar 3, but receives its own tightening force. In the use process, the tightening of the tightening tool 5 and the support pole 1 becomes more rigid, loosening of the tightening tool 5 is avoided, and the use stability of the iron bar frame is improved. Further, since the horizontal bar 3 is fixedly connected to some sleeve cylinders 2 and the horizontal bar 3 is not fixedly connected to some sleeve cylinders 2, if the fastener 5 is removed and the tightening sleeve pipe 4 is removed, The sleeve cylinder 2 to be adjusted can be removed, and the sleeve cylinders can be newly combined as needed to achieve the height adjustment of the horizontal bar.

When not in use, the fastener 5 is rotated to move it to the outside by a certain distance, and at this time, the sleeve tube 2 and the tightening sleeve tube 4 are both in a loosened state, and the sleeve tube 2 and Both the tightening sleeve tube 4 can rotate with respect to the support pole 1 and can slide up and down along the support pole. By bringing two support poles, which are in a diagonal relationship by an external force, close to each other until they come into contact with each other, the iron rod device becomes flat as a whole, so that folding and storage are convenient.

Example 2
The second embodiment is basically the same as the first embodiment, except for the blocking structure. As shown in FIG. 6, the blocking structure is the convex shoulder of the support pole 1, the annular positioning surface 6 is the convex shoulder surface 1a5, and the sleeve cylinder 2 is in contact with the convex shoulder surface 1a5. Alternatively, as shown in FIG. 7, the blocking structure is a blocking block 1a6 connected to the support pole 1 and protruding outward.

Example 3
Example 3 is basically the same as Example 1, except for the following points. As shown in FIGS. 8 and 9, the inclined portion 1a1 includes at least two pipe bodies 1a11, and the two pipe bodies 1a11 are connected to each other via a connection pipe 1a7 inserted between the pipe bodies 1a11. The connection pipe 1a7 is fixedly connected to one pipe body 1a11 by welding, and the connection pipe 1a7 is connected to the other pipe body 1a11 via the screw 15.

Example 4
Example 4 is basically the same as Example 1, except for the following points. As shown in FIG. 10, two horizontal bars 3 are connected between the two adjacent support poles 1, the lower horizontal bar 3 is a straight bar, and both ends are connected to the lowermost sleeve cylinder 2. By bending both ends of the upper horizontal bar 3 together, the horizontal bar 3 has an arch structure, and the direction of the arch shape extends into the three-dimensional frame along the horizontal direction, and the upper horizontal bar 3 is at the top. It is connected to the sleeve cylinder 2 of.

The particular embodiments described herein are merely illustrative of the present invention. Without departing from the scope of the present invention and exceeding the scope of the claims, those skilled in the art can modify, supplement, or replace in a similar manner.

Claims (6)

What is claimed is: 1. A horizontal bar apparatus including at least three vertically supported support poles (1) and a horizontal bar (3) connected between two adjacent support poles (1),
A plurality of sleeve cylinders (2) are further fitted on the upper part of each support pole (1), the sleeve cylinders (2) are vertically stacked, and both ends (31) of each horizontal bar (3) are respectively fitted with the sleeve. Fixedly connected to one of the tubes (2), the axial direction (321) of the main part (32) between the ends of the horizontal bar (3) is perpendicular to the axial direction (21) of the sleeve tube (2). There, each support pole (1) have a blocking structure for preventing the slippage of the sleeve tube (2),
The blocking structure is an annular positioning surface capable of contacting the lower end surface of the sleeve tube (2) of the support pole (1), the support pole (1) is a tubular pole, and the leg tube (1a) and the straight tube (1a). Including a pipe (1b), the straight pipe (1b) is inserted and fixed in the upper end of the leg pipe (1a), and the annular positioning surface is an annular end face of the upper end of the leg pipe (1a),
The sleeve tube (2) is fitted onto the straight pipe (1b), and one tightening sleeve pipe (4) is fitted onto the upper end of the straight pipe (1b) of each support pole (1). The tube (4) presses the tightening sleeve tube (4) against the sleeve tube (2) with a tightening tool (5), and the upper end surface of the tightening sleeve tube (4) is a pressure receiving surface (4a), The tightening tool (5) is a bolt, the cap edge of the bolt presses the pressure receiving surface (4a), and the lower end of the bolt passes through the pressure receiving surface (4a) and is screwed inside the support pole (1). A horizontal bar device characterized by being connected . The sleeve cylinder (2) fitted onto the support pole (1) can rotate about the support pole (1) as an axis, and the sleeve cylinder (2) can be rotated between the adjacent sleeve cylinders (2). A positioning structure for preventing the positioning structure, the positioning structure including a notch (7) provided on the upper end surface of the sleeve cylinder (2) and a protrusion (8) provided on the lower end surface of the sleeve cylinder (2), The horizontal bar device according to claim 1 , wherein the positioning protrusions (8) and the notches (7) of the two sleeve cylinders (2) to be engaged are fitted to each other. The horizontal bar device according to claim 2 , wherein the annular positioning surface is provided with a notch or a protrusion for preventing rotation of the sleeve cylinder (2). The leg pipe (1a) includes an inclined portion (1a1), an upper end of the inclined portion (1a1) is bent upward to form a vertical mounting portion (1a2), and a lower end thereof is bent downward to be vertical. A support part (1a3) is formed, a pad plate (9) is connected to the support part (1a3), and a vertical connection part (9a) is provided on the upper surface of each pad plate (9). The horizontal bar device according to claim 1 , wherein (1a3) is inserted and connected to the connection portion (9a). The inclined portion (1a1) includes at least two pipes (1a11), and the two pipes are connected via a connecting pipe (1a7) inserted between the pipes (1a11). The horizontal bar apparatus according to claim 4 , wherein. Since both ends (31) of the horizontal bar (3) are bent together, the main part (32) and the both ends (31) of the horizontal bar (3) intersect to form an included angle, and both ends (31) and the main part The horizontal bar apparatus according to claim 1, wherein the portions (32) are in the same plane, and the plane in which the horizontal bar (3) is located is installed along a horizontal direction.