Load-bearing sleigh car
By setting up a resistance wheel and push rod structure with adjustable resistance on the sled car, the problem of sled car rolling is solved by using the principles of magnetic resistance and friction, and achieving higher stability and training results.
Patent Information
- Application Number
- CN202422224663.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Existing sleds are easily overturned during use, affecting the safety of users.
By setting a resistance wheel and push rod structure that adjusts the resistance on the chassis of the sled car, combining the principles of magnetic resistance and friction resistance, the overall resistance of the sled car is adjusted to improve stability and prevent rollover.
It significantly improves the stability of the sled car during use, reduces the risk of rollover, and enhances the training effect.
Smart Images

Figure CN223069033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fitness equipment, and particularly provides a multifunctional weighted sled with adjustable resistance. Background Art
[0002] A sled is a fitness equipment commonly used in strength training, physical fitness enhancement, and rehabilitation training. It has two main training methods: pushing and pulling, and can activate and strengthen multiple muscle groups. A common fitness sled consists of a sturdy sled chassis and a weight loading rack, and users can adjust the load of the sled according to training needs. This multifunctional training tool is suitable for runners, athletes, and people who need to recover physical fitness.
[0003] However, the applicant found that the existing sled may tip over during use, thus affecting the safety of users. Summary of the Invention
[0004] The purpose of the utility model is to provide a weighted sled which, by improving the existing sled, can further increase the resistance during use to improve the training effect, and at the same time, greatly reduce the risk of tipping over of users during training.
[0005] A weighted sled, comprising:
[0006] A chassis, the chassis is a rectangular chassis, a counterweight rod is provided on the top of the chassis, a push rod is provided in front of the chassis, and a sled board is respectively provided on both sides of the bottom of the chassis. At least two resistance wheels with adjustable resistance are provided at the front and rear of the bottom of one sled board.
[0007] Preferably, two resistance wheels with adjustable resistance are provided at the front and rear of the bottom of one sled board, so that the resistance wheels at the bottom of the two sled boards are arranged in a rectangular array.
[0008] Furthermore, the push rod is used for the user to hold the push rod with both hands and exercise by pushing the weighted sled forward.
[0009] Furthermore, the push rod is two vertical rods, and the two vertical rods are fixedly connected in front of the sled board. The push rod can be connected to the side of the chassis by insertion, welding, or bolts.
[0010] Furthermore, the position and angle of the push rod can also adopt a quick-release or adjustable push rod, and by adjusting the distance and angle between the push rods, it can adapt to users of various body types. Those skilled in the art can select different push rods according to the configuration requirements.
[0011] Furthermore, the counterweight rod includes a 1-inch counterweight rod, and a 2-inch counterweight rod can be sleeved on the 1-inch counterweight rod, so that counterweight plates of different size specifications can be used.
[0012] Further, it is characterized in that a pull ring is provided at the rear of the chassis, and a pull rope is connected to the pull ring to provide a force application point for the user during pull training. The pull rope can be used for pull training of a fitness sled, usually a high-strength rope made of nylon or steel, and the other end can be tied to a belt or other fixing devices to allow the user to pull the sled for training.
[0013] Preferably, the two pull rings are respectively fixed on the sled boards at the rear of the chassis.
[0014] Further, the resistance wheel is a magnetic resistance wheel or a friction resistance wheel, so that the pushing and pulling difficulty of the sled can be controlled by increasing the friction force when the wheel contacts the ground or using the magnetic resistance principle.
[0015] Further, the resistance wheel includes a positioning wheel, an arc-shaped adjustment control piece is provided on the positioning wheel, a magnet is provided on the outer surface of the adjustment control piece, an outer wheel is provided outside the positioning wheel, and the adjustment control piece is between the positioning wheel and the outer wheel, so that the distance between the magnet on the adjustment control piece and the inner surface of the outer wheel can be controlled by an adjustment device, thereby controlling the resistance of the positioning wheel.
[0016] Further, the adjustment control piece includes an adjustment knob and a control line. One end of the control line is connected to one end of the adjustment control piece, the other end of the adjustment control piece is fixed on the positioning wheel through a connecting part, and the other end of the control line is connected to the control knob, so that the length of the control line can be controlled by rotating the adjustment knob, thereby adjusting the distance between the magnet on the adjustment control piece and the inner surface of the outer wheel.
[0017] Furthermore, the adjustment knob is arranged on the sled board.
[0018] Further, the shapes of the positioning wheel and the outer wheel are both rounded rectangles, the upper and lower sides of the rounded rectangle are parallel, and the left and right sides are semi-circular. An iron-containing track is provided on the outer wheel, so that the resistance wheel can move in a track manner to make it more stable during movement.
[0019] Compared with the prior art, the load-bearing sled of the present utility model can control the overall resistance of the sled by controlling the front and rear resistance wheels. When the sled is pushed forward with the push rod, the resistance of the front wheel can be reduced to the weakest, and the overall resistance of the sled can be controlled by controlling the rear resistance wheel, increasing its stability during movement, so as to greatly improve its ability to prevent forward rollover. When the resistance of the rear wheel is adjusted to the maximum, the resistance can be superimposed by increasing the front resistance wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic structural diagram of the present utility model;
[0021] Figure 2 It is the side view of the present utility model;
[0022] Figure 3 It is the Figure 2 partial enlarged view of point A in this application;
[0023] Wherein, 1. chassis, 2. counterweight rod, 3. push rod, 4. sled board, 5. reinforcing beam, 7. pull ring, 8. positioning wheel, 9. adjustment control piece, 10. outer wheel, 11. control line, 12. control knob, 13. connecting part, 14. push handle. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0026] Embodiment 1: As an optimal implementation manner, the specific content is as follows:
[0027] A weighted sled, comprising:
[0028] Chassis 1, the chassis 1 is a rectangular chassis 1, a counterweight rod 2 is fixed on the top of the chassis 1, a push rod 3 is provided in front of the chassis 1, a sled board 4 is fixed on each side of the bottom of the chassis 1, a reinforcing beam 5 is welded between the two sled boards 4, the reinforcing beam 5 is arranged behind the chassis 1, two adjustable-resistance resistance wheels are provided before and after the bottom of one sled board 4, so that the resistance wheels at the bottom of the two sled boards 4 are arranged in a rectangular array. The push rod 3 is composed of two vertical rods, the two vertical rods are fixedly connected in front of the sled board 4, a push handle 14 is arranged between the two vertical rods, and the push rod 3 can be connected to the side of the chassis 1 by insertion, welding or bolting; The counterweight rod 2 includes a 1-inch counterweight rod 2, and a 2-inch counterweight rod 2 can be sleeved on the 1-inch counterweight rod 2, so that counterweight plates of different size specifications can be used. A pull ring 7 is arranged behind the chassis 1, the number of the pull rings 7 is two, the two pull rings 7 are respectively fixed on the sled board 4 behind the chassis 1, and a pull rope is connected to the pull ring 7 to provide a force application point for the user in the pulling training. The pull rope can be used for the pulling training of the fitness sled, and is usually a high-strength rope made of nylon or steel, and the other end can be tied to a belt or other fixing devices to allow the user to pull the sled for training; The resistance wheel includes a positioning wheel 8, an arc-shaped adjustment control piece 9 is arranged on the positioning wheel 8, a magnet is arranged on the outer surface of the adjustment control piece 9, an outer wheel 10 is arranged outside the positioning wheel 8, and the adjustment control piece 9 is between the positioning wheel 8 and the outer wheel 10, so that the distance between the magnet on the adjustment control piece 9 and the inner surface of the outer wheel 10 can be controlled through an adjustment device, thereby controlling the resistance of the positioning wheel 8. The adjustment control piece 9 includes an adjustment knob and a control line 11, one end of the control line 11 is connected to one end of the adjustment control piece 9, the other end of the adjustment control piece 9 is fixed on the positioning wheel 8 through a connecting part 13, and the other end of the control line 11 is connected to the control knob 12, so that the length of the control line 11 can be controlled by rotating the adjustment knob, thereby adjusting the distance between the magnet on the adjustment control piece 9 and the inner surface of the outer wheel 10. When the sled is pushed forward with the push rod 3, the resistance of the front wheel can be reduced to the weakest, and the overall resistance of the sled can be controlled by controlling the rear resistance wheel, increasing its stability during the movement process, so as to greatly improve its ability to prevent front-side rollover and solve the problem that the existing sled is prone to rollover during use.
[0029] Embodiment 2, this embodiment is a further improvement on the basis of Embodiment 1. The shapes of the positioning wheel 8 and the outer wheel 10 are both rounded rectangles, the upper and lower sides of the rounded rectangle are parallel, and the left and right sides are semi-circular. An iron-containing track is arranged on the outer wheel 10, so that the resistance wheel can move in the form of a track to make it more stable during the movement process.
[0030] In addition, the utility model also discloses the following technical solutions on the basis of the above embodiments;
[0031] 1. The push rod 3 is used for the user to hold the push rod 3 with both hands and exercise by pushing the weighted sled forward. To increase the adaptability and functionality of the device and make it adaptable to different user needs, the position and angle of the push rod 3 can also adopt a quick-detachable or adjustable push rod 3. By adjusting the distance and angle between the push rods 3, it can adapt to users of various body types. Those skilled in the art can select different push rods 3 according to the configuration requirements.
[0032] 2. The resistance wheel can be a magnetic resistance wheel or a friction resistance wheel, so that the pushing and pulling difficulty of the sled can be controlled by increasing the friction when the wheel contacts the ground or using the principle of magnetic resistance.
[0033] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. A weighted sled, characterized in that, Comprising: A chassis, the chassis being a rectangular chassis, a counterweight rod being provided at the top of the chassis, a push rod being provided in front of the chassis, and a sled board being provided on each of the two sides at the bottom of the chassis. At least two resistance wheels with adjustable resistance are provided at the front and rear of the bottom of one of the sled boards.
2. The weight sled according to claim 1, characterized in that, Two resistance wheels with adjustable resistance are provided at the front and rear of the bottom of one of the sled boards.
3. The weight sled according to claim 1, wherein The push rod is composed of two vertical rods, and the two vertical rods are fixedly connected in front of the sled board.
4. A weighted sled according to claim 1, wherein, The counterweight rod includes a 1-inch counterweight rod, and a 2-inch counterweight rod is sleeved on the 1-inch counterweight rod.
5. A weighted sled according to any one of claims 1-4, characterized in that A pull ring is provided at the rear of the chassis.
6. The weight sled according to claim 5, characterized in that, The number of the pull rings is two, and they are respectively fixed on the sled boards at the rear of the chassis.
7. A weighted sled according to claim 5, wherein, The resistance wheel includes a positioning wheel, an arc-shaped adjustment control piece is provided on the positioning wheel, a magnet is provided on the outer surface of the adjustment control piece, an outer wheel is provided outside the positioning wheel, and the adjustment control piece is between the positioning wheel and the outer wheel, so that the distance between the magnet on the adjustment control piece and the inner surface of the outer wheel can be controlled through an adjustment device, thereby controlling the resistance of the positioning wheel.
8. A weighted sled according to claim 7, wherein, The adjustment control piece includes an adjustment knob and a control line. One end of the control line is connected to one end of the adjustment control piece, the other end of the adjustment control piece is fixed on the positioning wheel through a connecting part, and the other end of the control line is connected to the control knob, so that the length of the control line can be controlled by rotating the adjustment knob, thereby adjusting the distance between the magnet on the adjustment control piece and the inner surface of the outer wheel.
9. The weight sled according to claim 8, wherein, The shapes of the positioning wheel and the outer wheel are both rounded rectangles. The upper and lower sides of the rounded rectangle are parallel, and the left and right sides are semi-circular. A track containing iron is provided on the outer wheel, so that the resistance wheel can move in the form of a track.