Anti-dropping shock pad

Abstract

The utility model relates to the technical field of body -building apparatus, concretely relates to a kind of anti-drop shock pad, including shock absorbing rubber column, bolt and nut, the head of nut and bolt is embedded into both ends of shock absorbing rubber column, the nut has the claw tooth of engagement with shock absorbing rubber column, and the internal thread hole of the nut is communicated to the outside of shock absorbing rubber column, the head of bolt has the embedded groove and / or embedded convex tooth of engagement with shock absorbing rubber column, and the screw rod of the bolt is located outside shock absorbing rubber column.The utility model's nut has claw tooth, the head of bolt has embedded groove and / or embedded convex tooth, can enhance the adhesion between shock absorbing rubber column, enhance torsion and pull-off force.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to an anti-slip shock-absorbing pad. Background Technology

[0002] In fitness equipment such as treadmills, shock-absorbing pads are typically used to cushion and reduce the impact of reaction forces on the knees and body. For example, the shock-absorbing mechanism of a treadmill disclosed in Chinese patent document (CN203756837U) has a bottom fixed seat secured by bolts, and a top fixed seat secured by nuts and external bolts. The pull-out force of the nuts and bolts on the rubber pad in this type of shock-absorbing mechanism mainly relies on the roughening and adhesive coating of the nut and bolt surfaces, and the pull-out force is generally low. Utility Model Content

[0003] The purpose of this invention is to provide an anti-loosening shock-absorbing pad that can enhance the pull-out force between nuts, bolts and shock-absorbing rubber columns.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] The anti-detachment shock-absorbing pad includes a shock-absorbing rubber column, a bolt, and a nut. The heads of the nut and the bolt are embedded in both ends of the shock-absorbing rubber column. The nut has claws that engage with the shock-absorbing rubber column, and the internal threaded hole of the nut communicates with the outside of the shock-absorbing rubber column. The head of the bolt has a groove and / or teeth that engage with the shock-absorbing rubber column, and the bolt shank is located outside the shock-absorbing rubber column.

[0006] Preferably, the shock-absorbing rubber column is a TPS elastomer.

[0007] Preferably, the shock-absorbing rubber column is a cylinder.

[0008] Preferably, the nut is a four-pronged nut.

[0009] Preferably, the outer end face of the nut away from the bolt is flush with the first end face of the shock-absorbing rubber post.

[0010] Preferably, the outer end face of the nut away from the bolt is spaced 2mm-8mm apart from the first end face of the shock-absorbing rubber column, and the shock-absorbing rubber column is provided with a connecting hole at the position of the internal thread hole of the nut.

[0011] Preferably, the bolt is a flange bolt, and the head of the flange bolt is provided with a fitting groove or the flange of the flange is provided with fitting teeth.

[0012] Preferably, the fitting groove extends laterally through the head of the flange bolt.

[0013] Preferably, the bolt head is spaced 2mm-8mm apart from the second end face of the shock-absorbing rubber post.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model anti-detachment shock-absorbing pad includes a shock-absorbing rubber column and a nut and bolt embedded therein. The nut has claws, and the bolt head has a groove and / or a toothed engagement, which can enhance the adhesion between the shock-absorbing rubber column and the bolt, and enhance the torque and pull-out force. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the anti-detachment and shock-absorbing pad structure of this utility model.

[0017] Figure 2 This is an exploded view of the anti-detachment and shock-absorbing pad of this utility model.

[0018] The markings in the diagram are: 10, shock-absorbing rubber column; 20, nut; 21, claw; 30, bolt; 31, fitting groove. Detailed Implementation

[0019] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0020] like Figures 1-2 As shown, this embodiment provides an anti-detachment shock-absorbing pad, including a shock-absorbing rubber column 10, a bolt 30, and a nut 20. The nut 20 is at the first end of the shock-absorbing rubber column 10, and the bolt 30 is at the second end of the shock-absorbing rubber column 10. When the anti-detachment shock-absorbing pad is applied to a treadmill, the bolt 30 is locked into the main frame of the treadmill, and the nut 20 is locked onto the running board in cooperation with the external bolt. The shock-absorbing function is mainly achieved through the shock-absorbing rubber column 10.

[0021] In this embodiment, the shock-absorbing rubber column 10 has the properties of compression deformation under stress and rebound after stress release. Specifically, it adopts TPS elastomer and is cylindrical in shape. TPS elastomer has excellent rubber elasticity and tensile strength, and is resistant to cold, heat and weather, making it suitable for injection molding, extrusion and blow molding. In this embodiment, the nut 20 and bolt 30 are placed simultaneously into the injection mold, the inside of the nut 20 is sealed with an ejector pin, the outside of the bolt 30 is sealed with a groove, and then covered with TPS elastomer, thereby embedding the nut 20 and bolt 30 into the TPS elastomer. They can be directly demolded, improving production efficiency.

[0022] In this embodiment, the nut 20 is embedded in the first end of the shock-absorbing rubber post 10. The nut 20 has claws 21 that engage with the shock-absorbing rubber post 10, enhancing the adhesion between the nut 20 and the shock-absorbing rubber post 10, and enhancing the torque and pull-out force. Specifically, the nut 20 is a four-claw nut. Figure 1As shown, in this embodiment, the outer end face of the nut 20 away from the bolt 30 is spaced 2mm-8mm from the first end face of the shock-absorbing rubber post 10. The shock-absorbing rubber post 10 has a connecting hole at the position corresponding to the internal thread hole of the nut 20, and the external bolt is locked into the internal thread hole of the nut 20 through the connecting hole. It should be noted that in some other examples, the outer end face of the nut 20 away from the bolt 30 may also be flush with the first end face of the shock-absorbing rubber post 10.

[0023] In this embodiment, the head of the bolt 30 is embedded in the second end of the damping rubber column 10, and the bolt shank of the bolt 30 is located outside the damping rubber column 10. The head of the bolt 30 has a fitting groove 31 that engages with the damping rubber column 10. Specifically, the bolt 30 is a hexagonal flange bolt, and the head of the hexagonal flange bolt has a fitting groove 31. The fitting groove 31 extends laterally through the head of the flange bolt, enhancing the adhesion between it and the damping rubber column 10, and enhancing the torque and pull-out force. Figure 1 As shown, in this embodiment, the bolt head of the bolt 30 is spaced 2mm-8mm apart from the second end face of the shock-absorbing rubber post 10.

[0024] In some other examples, the flange of the hexagonal flange bolt is further provided with interlocking teeth that engage with the damping rubber post 10 to enhance adhesion. Alternatively, only interlocking teeth may be provided without interlocking grooves.

[0025] The head of a hexagonal flange bolt refers to both the flange and the hexagonal head.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. An anti-detachment and shock-absorbing pad, characterized in that: The device includes a shock-absorbing rubber column, a bolt, and a nut. The heads of the nut and the bolt are embedded at both ends of the shock-absorbing rubber column. The nut has teeth that engage with the shock-absorbing rubber column, and the internal threaded hole of the nut communicates with the outside of the shock-absorbing rubber column. The head of the bolt has a groove and / or teeth that engage with the shock-absorbing rubber column, and the bolt shank is located outside the shock-absorbing rubber column.

2. The anti-detachment and shock-absorbing pad according to claim 1, characterized in that: The shock-absorbing rubber column is a TPS elastomer.

3. The anti-detachment and shock-absorbing pad according to claim 1, characterized in that: The shock-absorbing rubber column is cylindrical.

4. The anti-detachment and shock-absorbing pad according to claim 1, characterized in that: The nut is a four-claw nut.

5. The anti-detachment and shock-absorbing pad according to claim 1, characterized in that: The outer end face of the nut away from the bolt is flush with the first end face of the shock-absorbing rubber column.

6. The anti-detachment and shock-absorbing pad according to claim 1, characterized in that: The outer end face of the nut away from the bolt is spaced 2mm-8mm apart from the first end face of the shock-absorbing rubber column, and the shock-absorbing rubber column is provided with a connecting hole at the position of the internal thread hole of the nut.

7. The anti-detachment and shock-absorbing pad according to any one of claims 1 to 6, characterized in that: The bolt is a flange bolt, and the head of the flange bolt is provided with a fitting groove or the flange of the flange is provided with fitting teeth.

8. The anti-detachment and shock-absorbing pad according to claim 7, characterized in that: The fitting groove extends laterally through the head of the flange bolt.

9. The anti-detachment and shock-absorbing pad according to claim 7, characterized in that: The bolt head is spaced 2mm-8mm apart from the second end face of the shock-absorbing rubber post.

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