Return type suspension rod mechanism

Abstract

The utility model discloses a return type suspension rod mechanism, and mainly relates to the field of skill affirmation / competition field facilities. Comprising a fixing plate, a mounting cylinder, a matching plate and a rod piece which are sequentially arranged from top to bottom, the fixing plate is hoisted and fixed, the mounting cylinder is fixed below the fixing plate, a spherical concave cavity is formed in the bottom face of the mounting cylinder, a cylinder cavity is formed above the spherical concave cavity, and a via hole for communicating the spherical concave cavity with the cylinder cavity is formed in the middle between the spherical concave cavity and the cylinder cavity; a steel wire rope in clearance fit with the through hole penetrates through the through hole, a sliding plate in up-down sliding fit with the barrel cavity is arranged in the barrel cavity, the sliding plate and the fixing plate are connected through a plurality of tension springs, a ball piece matched with the spherical concave cavity is arranged in the middle of the top face of the matching plate, and the top end of the steel wire rope is fixedly connected with the sliding plate. The top end of the rod piece is fixed to the center of the bottom face of the matching plate. The automatic reset device has the advantages that the rod piece can be rapidly and automatically reset, and the reset positions are kept highly consistent.

Description

Technical Field

[0001] The utility model relates to the field of skill assessment / competition venue facilities, and particularly to a return-type suspension rod mechanism. Background Technique

[0002] In forklift competitions, multiple obstacle poles are set up in the competition venue based on the needs of competition items. During the competition, forklift drivers drive vehicles around the obstacle poles for speed racing operations, and the driving speeds are all very fast. Whether the obstacle poles are touched is one of the important scoring criteria. In the current venue facilities, an iron disc is used as the base of the obstacle pole, and a plastic rod is vertically inserted on it. During the competition, at least 2 referees are required to make judgments. However, during the competition process, as long as the obstacle pole is touched, the referee has to run to straighten and reset it. The intense schedule and fast vehicle speed make this straightening operation have relatively large potential safety hazards. Moreover, after straightening, it is often too late to accurately adjust the position, and the venue has to be vacated, which to a certain extent affects the scoring in the later stage of the competition.

[0003] In new equipment and intelligent equipment, there are also some new types of obstacle poles, which achieve automatic reset by adding some spring reset structures on the poles. However, there is generally a problem of too long reset time. Driven by the spring, after the obstacle pole is touched, it shakes and vibrates repeatedly, with a long stabilization time and inaccurate return position. We have conducted tests on the new equipment. After repeating several times, the longest reset time reaches 60 seconds, and the vertical projection points of each subsequent return are inconsistent. It cannot be applied in high-speed competitions, nor can it provide high-quality and high-demand competition conditions. Content of the Utility Model

[0004] The purpose of the utility model is to provide a return-type suspension rod mechanism, which can achieve the rapid automatic reset of the rod, and the reset position remains highly consistent.

[0005] In order to achieve the above object, the utility model is realized through the following technical solutions:

[0006] A return-type suspension rod mechanism includes a fixing plate, an installation cylinder, a matching plate, and a rod, which are arranged in sequence from top to bottom. The fixing plate is hoisted and fixed. The installation cylinder is fixed below the fixing plate. A spherical cavity is provided on the bottom surface of the installation cylinder. A cylinder cavity is provided above the spherical cavity. A through hole communicating the two is provided in the middle between the spherical cavity and the cylinder cavity. A steel wire rope that is in clearance fit with it penetrates through the through hole. A sliding plate that slides up and down in the cylinder cavity is provided in the cylinder cavity. The sliding plate is connected to the fixing plate through multiple tension springs. A ball piece adapted to the spherical cavity is provided in the middle of the top surface of the matching plate. The top end of the steel wire rope is fixed to the sliding plate, and the bottom end of the steel wire rope is fixedly connected to the center of the ball piece. The top end of the rod is fixed to the center of the bottom surface of the matching plate. When the ball piece is located in the spherical cavity, the rod is vertical.

[0007] The barrel cavity is cylindrical, a plurality of slide grooves are arranged in an annular array around the sliding plate, and a slide bar located in the slide groove and slidably connected to the slide groove is vertically arranged on the inner wall of the barrel cavity.

[0008] A plurality of lower pull rings are arranged on the top surface of the sliding plate, an upper pull ring is arranged on the bottom surface of the fixed plate at a position corresponding to the vertical projection of the lower pull ring, the top end of the tension spring is connected to the upper pull ring, and the bottom end is connected to the corresponding lower pull ring.

[0009] The bottom end of the rod is close to the ground and is provided with a magnetic head. It also includes a magnetic piece buried in the bottom surface. The magnetic piece and the magnetic head have magnetic attraction. The magnetic piece is located below the rod and corresponds to the projection position of the rod in a vertical state.

[0010] A fixing seat is provided in the center of the bottom surface of the matching plate, and bolt members are provided on the circumferential side of the fixing seat to penetrate the fixing seat, and the fixing seat is detachably mounted on the bottom surface of the matching plate by the bolt members. A fixing tube is provided in the center of the fixing seat, and an internal thread is provided in the fixing tube. A screw head is provided at the top end of the rod member to be threadedly connected to the fixing tube, and a pin rod is passed through the screw head and the fixing tube, and a straight-shaped handle is provided at one end of the pin rod, and a locking nut is provided at the other end of the pin rod to be threadedly connected to the fixing tube.

[0011] The rod is an aluminum straight rod.

[0012] There are six slide grooves and six tension springs respectively, and the slide grooves and the tension springs are arranged alternately.

[0013] The spherical cavity is semicircular, and the ball piece is a hemispherical body that matches the spherical cavity.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] Through this mechanism, after the rod is used as an obstacle rod in a forklift competition venue, when the forklift operating the cargo hits the rod, the rod can automatically return to its position, and can quickly stop swinging and shaking after resetting, and the position after resetting is consistent with the preset position, which can be used in a slow-speed competition environment with a fast speed, without the need for referee intervention and correction, thus ensuring the safety of the referee, and at the same time, the accurate and fast return to position meets the high-quality, high-demand, and high-speed competition requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the principle of the utility model (no collision during use).

[0017] Figure 2 It is a schematic diagram of the principle of the utility model (being hit during use).

[0018] Figure 3It is a schematic diagram of the component disassembly of the present utility model.

[0019] Figure 4 It is a schematic diagram of the internal structure of the installation cylinder of the present utility model.

[0020] Figure 5 It is a schematic diagram of the installation structure at the top end of the rod of the present utility model.

[0021] Reference numerals shown in the drawings:

[0022] 1. Fixed plate; 2. Installation cylinder; 3. Matching plate; 4. Rod; 5. Magnetic part; 6. Spherical cavity; 7. Positioning surface; 8. Cylinder cavity; 9. Through hole; 10. Sliding plate; 11. Chute; 12. Slide bar; 13. Tension spring; 14. Ball part; 15. Steel wire rope; 16. Fixed seat; 17. Fixed pipe; 18. Pin rod; 19. Magnetic head. Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.

[0024] As shown in the figure, this mechanism includes, from top to bottom in sequence: a fixed plate 1, an installation cylinder 2, a matching plate 3, a rod 4, and a magnetic part 5.

[0025] It includes a fixed plate 1 fixedly installed by hanging. Installation holes are provided on the periphery of the fixed plate 1 to facilitate hoisting and fixing.

[0026] An installation cylinder 2 fixedly connected to it is provided on the bottom surface of the fixed plate 1. The installation cylinder 2 is a cylindrical cylinder in this example. A horizontal positioning surface 7 is provided at the bottom end of the installation cylinder 2. An upwardly concave spherical cavity 6 is provided on the positioning surface 7. A cylindrical cylinder cavity 8 is provided above the spherical cavity 6. A through hole 9 communicating with the cylinder cavity 8 is provided at the center of the spherical cavity 6. The through hole 9 is coaxial with the cylinder cavity 8. A sliding plate 10 with a lifting stroke along its axis is provided in the cylinder cavity 8. A plurality of chutes 11 are annularly arranged on the periphery of the sliding plate 10. Vertical slide bars 12 located in the chutes 11 and slidably connected to the chutes 11 are provided on the inner wall of the cylinder cavity 8. The slide bars 12 extend vertically. Based on the cooperation between the slide bars 12 and the chutes 11, the up and down sliding stroke of the sliding plate 10 is restricted, so that the sliding plate 10 remains horizontal and circumferentially stationary during lifting.

[0027] On the top surface of the sliding plate 10, there are six groups of pull-down rings. There are also six groups of sliding grooves 11, such that the sliding grooves 11 and the pull-down rings are arranged staggeredly. On the bottom surface of the fixing plate 1, there are pull-up rings corresponding to the vertical projection positions of the pull-down rings. Between the pull-up rings and the pull-down rings, there are tension springs 13. There are also six tension springs 13. The top ends of the tension springs 13 are vertically connected to the corresponding pull-up rings, and the bottom ends are connected to the corresponding pull-down rings. When the sliding plate 10 is pulled downward and descends, it has an elastic force for upward reset.

[0028] Below the mounting cylinder 2, there is a mating plate 3. The mating plate 3 can be circular, square or other shapes. In the center of the top surface of the mating plate 3, there is a hemispherical ball member 14. The ball member 14 is located within the spherical concave cavity 6 and corresponds to the spherical concave cavity 6, with a matching shape. When the ball member 14 is concentrically located within the spherical concave cavity 6, the top surface of the mating plate 3 is parallel or coplanar with the positioning surface 7.

[0029] A steel wire rope 15 passes through the through-hole 9. The top end of the steel wire rope 15 is fixed at the center of the bottom surface of the sliding plate 10, and the bottom end of the steel wire rope 15 is fixed at the center position of the top end of the ball member 14.

[0030] The top end of the rod member 4 is fixed on the mating plate 3. The specific structure adopts a detachable method: In the center of the bottom surface of the mating plate 3, there is a fixing seat 16. The fixing seat 16 is provided with bolt members passing through its periphery. The fixing seat 16 is detachably installed on the bottom surface of the mating plate 3 through the bolt members. In the center of the fixing seat 16, there is a fixing tube 17. The fixing tube 17 is provided with internal threads. The top end of the rod member 4 is provided with a screw head threadedly connected to the fixing tube 17. Both the screw head and the fixing tube 17 are provided with pin rods 18. One end of the pin rod 18 is provided with a flat head, and the other end of the pin rod 18 is provided with a locking nut threadedly connected thereto, thereby strengthening the fixation between the rod member 4 and the fixing tube 17. Threaded connection can ensure no shaking and tight connection. When the rod member 4 is repeatedly impacted, the connection strength can be improved through the pin rod 18, the thread attenuation can be reduced, and the loosening problem caused by thread attenuation can be resisted.

[0031] At the bottom end of the rod member 4, there is a magnetic head 19. The magnetic head 19 and the magnetic member 5 have mutually attracting magnetism. The magnetic member 5 is fixed on the bottom surface. The magnetic member 5 includes an S - grade magnet in the center and a flat plate on the periphery. The flat plate is provided with a through-hole 9 and is fixed on the bottom surface through expansion bolts or ordinary bolt members, such that the magnetic member 5 is located at the central position of the orthographic projection below the magnetic head 19 when the rod member 4 is in a vertical state. The magnetic head 19 uses an N - grade magnet. Through adsorption, rapid centering and positioning can be achieved, shaking can be prevented, and at the same time, the height of the reset position can be ensured to be consistent.

[0032] Based on the above mechanism, the rod 4 is used as an obstacle rod in the competition. When the forklift hits the rod 4, the rod 4, the ball part 14 and the mating plate 3 form a whole. The rod 4 is tilted by the impact, driving the mating plate 3 and the ball part 14 to swing. Based on the bottom side of the mounting cylinder 2 abutting against the top surface of the mating plate 3, the mating plate 3 can only tilt downward to adapt to the swing of the rod 4, thereby pulling the entire ball part 14 downward and partially disengaging from the spherical cavity 6, thus pulling the steel wire rope 15 downward, causing the sliding plate 10 to slide downward, and the 6 tension springs 13 of the same length are further stretched. After the impact ends, under the action of the 6 tension springs 13, the sliding plate 10 is quickly dragged back upward, making the ball part 14 return to the spherical cavity 6. Based on the coincidence of the ball part 14 and the spherical cavity 6, the position and state of the rod 4 are quickly stabilized. Through the spherical coincidence and the pulling of the tension springs 13, the swing of the rod 4 can be quickly constrained and stopped.

[0033] In addition, if the adsorption effect of the magnetic part 5 on the bottom end of the rod 4 is enabled, the rod 4 can be quickly positioned and centered, further ensuring the height consistency of the reset of the rod 4, and the accuracy will not be reduced due to mechanical actions or use wear, and accurate reset can also be ensured after long-term use.

[0034] Through the above mechanism, after application and testing on the site, the rod 4 can achieve quick and accurate return, the return time is less than 3 seconds, and the return accuracy is ±3 mm. After using this suspension rod, its automatic reset time and accuracy exceed the requirements of the competition ban regulations. After the rod 4 is replaced with an aluminum rod instead of a plastic pipe, the damage rate is also greatly reduced. The original 2 referees can be reduced according to requirements, and during the competition, only the vehicle actions and specifications need to be focused on, and there is no need to maintain the on-site facilities anymore.

Claims

1. A return-type suspension rod mechanism, characterized in that It includes a fixed plate, an installation cylinder, a matching plate, and a rod that are arranged successively from top to bottom. The fixed plate is fixed by hoisting. The installation cylinder is fixed below the fixed plate. A spherical cavity is provided on the bottom surface of the installation cylinder. A cylinder cavity is provided above the spherical cavity. A through hole that communicates the two is provided in the middle between the spherical cavity and the cylinder cavity. A steel wire rope that is in clearance fit with the through hole penetrates through the through hole. A sliding plate that slides up and down in the cylinder cavity is provided in the cylinder cavity. The sliding plate is connected to the fixed plate by a plurality of tension springs. A spherical member adapted to the spherical cavity is provided in the middle of the top surface of the matching plate. The top end of the steel wire rope is fixedly connected to the sliding plate. The bottom end of the steel wire rope is fixedly connected to the center of the spherical member. The top end of the rod is fixed at the center of the bottom surface of the matching plate. When the spherical member is located in the spherical cavity, the rod is vertical.

2. The return type suspension rod mechanism according to claim 1, characterized in that, The cylinder cavity is cylindrical. A plurality of sliding grooves are annularly arrayed on the peripheral side of the sliding plate. Slide bars that are located in the sliding grooves and are slidably connected to the sliding grooves are vertically provided on the inner wall of the cylinder cavity.

3. The return-type suspension rod mechanism according to claim 1, wherein A plurality of lower pull rings are provided on the top surface of the sliding plate. Upper pull rings are provided on the bottom surface of the fixed plate at positions corresponding to the vertical projections of the lower pull rings. The top ends of the tension springs are connected to the upper pull rings, and the bottom ends are connected to the corresponding lower pull rings.

4. The return-type suspension rod mechanism according to claim 1, wherein The bottom end of the rod is close to the ground and is provided with a magnetic head. It also includes a magnetic member buried in the ground surface. The magnetic member and the magnetic head have magnetic attraction. The magnetic member is located below the rod and corresponds to the projection position when the rod is in a vertical state.

5. The return type suspension rod mechanism according to claim 1, wherein A fixed seat is provided in the middle of the bottom surface of the matching plate. A bolt member that penetrates through the fixed seat is provided on the peripheral side of the fixed seat. The fixed seat is detachably installed on the bottom surface of the matching plate through the bolt member. A fixed tube is provided in the middle of the fixed seat. Internal threads are provided in the fixed tube. A screw head that is threadedly connected to the fixed tube is provided at the top end of the rod. Pin rods penetrate through both the screw head and the fixed tube. A flat head is provided at one end of the pin rod, and a locking nut that is threadedly connected to the pin rod is provided at the other end of the pin rod.

6. The return type suspension rod mechanism according to claim 1, characterized in that The rod is an aluminum straight rod.

7. The return-type suspension rod mechanism according to claim 2, wherein, There are 6 sliding grooves and tension springs respectively, and the sliding grooves and tension springs are arranged alternately.

8. The return-type suspension rod mechanism according to claim 1, wherein The spherical cavity is semi-circular, and the spherical member is a hemisphere that fits the spherical cavity.

Images