Damping type rotary connection structure and treadmill display

Abstract

This utility model relates to the field of treadmills, and discloses a damped rotary connection structure and a treadmill display, including a shaft and a damping block. One end of the damping block has a recessed slot for the shaft to be inserted into. The outer ring wall of the shaft has a circumferentially recessed arc-shaped groove with a preset curvature. The inner wall of the slot has a protruding damping protrusion that is inserted into the arc-shaped groove and elastically abuts against the bottom of the arc-shaped groove. The end of the shaft near the slot has a recessed slot that is smaller on the outside and larger on the inside. The end of the damping block away from the slot has a limiting member that is inserted into the slot after deformation. The outer wall of the damping block has a protruding positioning block with a first mounting groove. The outer wall of the shaft away from the damping block has a vertically protruding positioning rod with a second mounting groove. This damped rotary connection structure is not only simple in structure but also more convenient to assemble.

Description

Technical Field

[0001] This utility model relates to the field of treadmills, and in particular to a damped rotating connection structure and a treadmill display. Background Technology

[0002] Since users have different requirements for the installation angle of the treadmill display, the existing treadmill displays are generally designed to rotate and be limited relative to the control panel. For easy adjustment, the rotation method of the display relative to the control panel is preferably a damped rotation method. Users only need to apply a torque greater than the damping force to drive the display to rotate relative to the control panel.

[0003] There are many damping rotation structures on the market, most of which are quite complex, complicated to assemble, and some cannot be operated by a single person. In order to simplify the structure and improve assembly efficiency, Chinese Patent No. CN208448503U discloses a treadmill display screen rotation mechanism, including a cylindrical mandrel and bushings respectively sleeved on both ends of the mandrel and capable of relative rotation. The mandrel has a limiting protrusion protruding from the cylindrical surface of the mandrel on both ends, and a limiting groove is provided on the limiting protrusion. The inner wall of the bushing end is provided with a limiting pin corresponding to the limiting groove to realize rotation limitation. The bushing consists of two semi-circular bushing bodies and an end cap. The display housing includes a back plate and a display panel. Each of the back plate and the display panel has a bushing body integrally installed at the lower end. During assembly, damping sleeves are first fitted onto both ends of the shaft. The bushing bodies on the back plate and the display panel are then joined together by fixing them together. Then, external hexagonal screws are passed through one end of the bushing, the first damping sleeve, the shaft, the second damping sleeve, the washer, and the other end of the bushing in sequence and are fixedly connected to the nut. Finally, the end cap is put on.

[0004] Compared to conventional damped rotation structures on the market, the above solution has a simplified structure and can be assembled by a single person. This solution aims to provide a damped connection structure that is different from the above-mentioned patented solution but is equally simple in structure and easy to assemble, as well as a treadmill display with this structure. Utility Model Content

[0005] The first objective of this invention is to provide a damping connection structure that differs from existing structures but is equally simple and easy to assemble.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] A damped rotary connection structure includes a shaft and a damping block. One end of the damping block has a recessed slot for the shaft to be inserted into. The outer ring wall of the shaft has a circumferentially recessed arc-shaped groove with a preset curvature. The inner wall of the slot has a protruding damping protrusion that is inserted into the arc-shaped groove and elastically abuts against the bottom of the arc-shaped groove. The end of the shaft near the slot has a recessed groove that is smaller on the outside and larger on the inside. The end of the damping block away from the slot is connected to a limiting member that, after deformation, snaps into the groove. The outer wall of the damping block has a protruding positioning block with a first mounting groove. The outer wall of the end of the shaft away from the damping block has a vertically protruding positioning rod with a second mounting groove.

[0008] Using the above scheme, this structure has three components: a shaft with a positioning rod, a damping block with a positioning block, and a limiting component that enables the rotational assembly of the two and prevents them from detaching. After the shaft is inserted into the damping block, only the limiting component needs to be inserted to achieve quick assembly of the three components. The positioning block and positioning rod in this structure are respectively fastened to a component with bolts to achieve relative damped rotation between the two components. This damped rotational connection structure is not only simpler in structure but also more convenient to assemble.

[0009] Preferably, the limiting component includes a cylindrical insert rod and limiting heads and locking blocks fixed to both ends of the insert rod. The locking blocks are truncated cones with their tips pointing outwards. The tips of the locking blocks are recessed towards the insert rod and have deformation slots extending to the bottom of the insert rod. The diameters of the large-diameter ends of the limiting heads and locking blocks are both larger than the diameter of the insert rod.

[0010] Using the above scheme, the deformation slot can make the tip of the locking block relatively close after being squeezed. When the locking block passes through the damping block and the small diameter section of the slot, it first gets relatively close, and then moves relatively away to reset after entering the large diameter section of the slot, thereby realizing the function of preventing the damping block and the shaft from getting off.

[0011] Preferably, the end of the limiting head away from the insertion rod has two recessed drive weight reduction grooves for tweezers to be inserted.

[0012] Using the above solution, during assembly, tweezers can be inserted into the drive weight reduction groove to clamp the limiting component. After the limiting component is inserted into the damping block, it can be pressed to achieve the engagement between the limiting component and the slot.

[0013] Preferably, the end of the damping block away from the slot has a recessed guide weight-reducing groove for guiding the insertion of the limiting head, which is a frustoconical shape with its tip facing the insertion rod.

[0014] By adopting the above scheme, the setting of the guide weight reduction groove can realize the rapid guide insertion of the limiting component, reduce the amount of damping block used and save the overall volume after assembly. The shape of the limiting head makes it easy to quickly guide into the guide weight reduction groove. The above design can increase the assembly efficiency and reduce the cost.

[0015] Preferably, the first mounting groove and the second mounting groove are waist-shaped grooves.

[0016] By adopting the above solution, the waist-shaped groove can increase adaptability and overcome assembly problems caused by production errors.

[0017] The second objective of this utility model is to provide a treadmill display, including a back plate and a display panel that are screwed together and fixed to each other. The display is equipped with two sets of damped rotating connection structures. Two damping blocks are coaxially fixed on both sides of the lower end of the back plate. Each side of the lower end of the back plate is provided with a plurality of first mounting posts that correspond to the first mounting groove and have internal threads. The positioning block is fastened to the first mounting post by the first bolt.

[0018] Using the above solution, the positioning block is fixed to the back plate with the first bolt. After the back plate is fixed to the display panel, the two sets of shafts are coaxially rotated at both ends of the display. By simply fixing the two positioning rods to the control panel of the treadmill, the display can rotate with damping relative to the control panel.

[0019] This utility model, by adopting the above technical solution, has significant technical effects: it provides a novel damped rotational connection structure, which has only three components: a shaft with a positioning rod, a damping block with a positioning block, and a limiting component that enables the rotational assembly of the two and prevents them from detaching. The three components can be assembled simply by inserting the limiting component. The positioning block and positioning rod in this structure are fixed to the display and the control panel respectively by bolts, which enables the damped rotation of the display relative to the control panel. The overall structure is simpler and the assembly is more convenient. Attached Figure Description

[0020] Figure 1 This is a front view of a damped rotary connection structure according to this embodiment;

[0021] Figure 2 yes Figure 1 A sectional view of AA;

[0022] Figure 3 This is a breakdown of a damped rotary connection structure in this embodiment. Figure 1 ;

[0023] Figure 4 This is a breakdown of a damped rotary connection structure in this embodiment. Figure 2 ;

[0024] Figure 5 This is an isometric view of the treadmill display after the display panel has been removed in this embodiment;

[0025] Figure 6 This is an isometric view of the treadmill display in this embodiment.

[0026] The parts referred to by the numbers in the above attached figures are as follows: 1. Display panel; 2. Back plate; 3. Shaft; 301. Arc groove; 302. Slot; 4. Positioning rod; 5. Second mounting slot; 6. Damping block; 601. Guide weight reduction slot; 602. Slot; 603. Damping protrusion; 604. Through slot; 7. Positioning block; 8. First mounting slot; 9. First bolt; 10. First assembly column; 11. Limiting head; 12. Insert rod; 13. Locking block; 14. Deformation slot; 15. Drive weight reduction slot. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] A treadmill display, reference Figures 1-6 As shown, the display includes a back plate 2 and a display panel 1 that are screwed together. Three first mounting posts 10 with internal threads are provided on each side of the lower end of the back plate 2. The lower ends of the back plate 2 and the display panel 1 each extend a semi-circular positioning part. When the back plate 2 and the display panel 1 are fixed, the two positioning parts are joined together to form a ring tube segment. Two sets of damped rotating connection structures are installed on the display.

[0029] The damping rotating connection structure includes a damping block 6 inserted into the annular pipe section and a shaft 3 that rotates relative to the damping block 6. The damping block 6 is made of rubber, and a positioning block 7 extends integrally from the outer wall of the damping block 6. The positioning block 7 is provided with three first mounting grooves 8 that correspond to the first assembly column 10 and are waist-shaped. The positioning block 7 is fixed to the back plate 2 by the first bolt 9.

[0030] Shaft 3 is partially inserted into damping block 6 and partially located outside the end of the annular tube section. The end of damping block 6 near shaft 3 has a recessed slot 602 for shaft 3 to be inserted. The outer ring wall of shaft 3 has two symmetrically recessed arc-shaped grooves 301 with an arc angle between 100° and 150°. The inner wall of slot 602 has symmetrically integrally protruding damping protrusions 603 that are respectively inserted into an arc-shaped groove 301 and elastically abut against the bottom of the arc-shaped groove 301. The end of shaft 3 near slot 602 has a recessed slot 302 with a smaller outer diameter and a larger inner diameter and a "T" shaped cross section. The end of damping block 6 away from slot 602 is connected to a limiting member that, after deformation, is snapped into slot 302.

[0031] The limiting component includes a cylindrical insertion rod 12 and limiting heads 11 and locking blocks 13 fixed to both ends of the insertion rod 12. The locking blocks 13 are frustoconical with their tips pointing outwards. The tip of the locking blocks 13 is recessed towards the insertion rod 12 and has a deformation slot 14 extending to the bottom of the insertion rod 12. The diameter of the large-diameter ends of the limiting heads 11 and the locking blocks 13 is larger than the diameter of the insertion rod 12. The end of the limiting head 11 away from the insertion rod 12 has two driving weight reduction grooves 15 for inserting tweezers. The end of the damping block 6 away from the slot 602 has a guide weight reduction groove 601 for guiding the insertion of the limiting head 11. The limiting head 11 is frustoconical with its tip pointing towards the insertion rod 12.

[0032] A positioning rod 4 is vertically protruding on the outer wall of one end of the shaft 3 outside the annular pipe section. The positioning rod 4 is provided with several waist-shaped second mounting grooves 5. When assembling the display with the control panel of the treadmill, two sets of second mounting posts with internal threads will be provided on the bottom plate of the control panel. The second mounting grooves 5 on the positioning rod 4 correspond one-to-one with the second mounting posts, and the two are fastened by the second bolts. Finally, the cover plate and the bottom plate are screwed together to complete the assembly of the control panel. At this time, the display can rotate relative to the control panel with damping.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A damped rotary connection structure, comprising a shaft (3) and a damping block (6), characterized in that: One end of the damping block (6) has a recessed slot (602) for inserting the shaft (3). The outer ring wall of the shaft (3) has a circumferentially recessed arc-shaped groove (301) with a preset curvature. The inner wall of the slot (602) has a protruding damping protrusion (603) that is inserted into the arc-shaped groove (301) and elastically abuts against the bottom of the arc-shaped groove (301). The end of the shaft (3) near the slot (602) has a recessed slot (302) that is smaller on the outside and larger on the inside. The end of the damping block (6) away from the slot (602) is connected to a limiting member that is deformed and then snaps into the slot (302). The outer wall of the damping block (6) has a protruding positioning block (7) with a first mounting groove (8). The outer wall of the shaft (3) away from the damping block (6) has a vertically protruding positioning rod (4) with a second mounting groove (5).

2. The damped rotary connection structure according to claim 1, characterized in that: The limiting component includes a cylindrical insert rod (12) and a limiting head (11) and a locking block (13) fixed at both ends of the insert rod (12). The locking block (13) is a frustum-shaped cone with its tip pointing outward. The tip of the locking block (13) is recessed towards the insert rod (12) and has a deformation slot (14) extending to the bottom of the insert rod (12). The diameter of the large-diameter end of the limiting head (11) and the locking block (13) is larger than the diameter of the insert rod (12).

3. The damped rotary connection structure according to claim 2, characterized in that: The end of the limiting head (11) away from the insertion rod (12) has two recessed drive weight reduction grooves (15) for tweezers to be inserted.

4. The damped rotary connection structure according to claim 2, characterized in that: The damping block (6) has a guide weight reduction groove (601) at the end away from the slot (602) for the guide head (11) to be inserted. The guide head (11) is a frustum-shaped cone with its tip facing the insertion rod (12).

5. A damped rotary connection structure according to any one of claims 1-4, characterized in that: The first mounting slot (8) and the second mounting slot (5) are waist-shaped slots.

6. A treadmill display, comprising a back plate (2) and a display panel (1) screwed together and fixed to each other, characterized in that: The display is equipped with two sets of damped rotating connection structures as described in any one of claims 1-5. Two damping blocks (6) are coaxially (3) fixed on both sides of the lower end of the back plate (2). Each side of the lower end of the back plate (2) is provided with a plurality of first mounting posts (10) corresponding to the first mounting groove (8) and having internal threads. The positioning block (7) is fastened to the first mounting post (10) by the first bolt (9).

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