A connection mechanism between a treadmill column and a base frame

Abstract

The present invention discloses a connection mechanism between a treadmill column and a base frame, comprising an upper fixing frame, a lower fixing frame and a pull pin, wherein the top of the upper fixing frame is connected to the treadmill column, and the bottom of the lower fixing frame is connected to the base frame; one end of the upper fixing frame and the lower fixing frame are hinged, the pull pin is installed and fixed at the other end of the upper fixing frame, and pull pin positions are provided on both sides of the lower fixing frame, and a movable positioning pin is provided at the front end of the pull pin, and the movable positioning pin is clamped at the pull pin position. Compared with the prior art, the present invention has the following advantages: the present invention facilitates the assembly and folding between the column and the base frame of the treadmill, ensures safety, and can avoid potential safety hazards caused by accidental collision; the structural design is ingenious and the cost is low.

Description

Technical Field

[0001] The invention relates to fitness equipment, in particular to a connecting mechanism between a treadmill column and a base frame. Background Art

[0002] At present, the unpacking installation method adopted by treadmills on the market is manual installation with tools and screw packs. The disassembly and assembly between the column and the base frame are inconvenient and have certain risks. Therefore, the development of a connection mechanism between the treadmill column and the base frame has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0003] The present invention is to solve the above-mentioned drawbacks and provides a connection mechanism between a treadmill column and a base frame.

[0004] The above-mentioned purpose of the present invention is achieved through the following technical solutions: a connecting mechanism between a treadmill column and a base frame, comprising an upper fixing frame, a lower fixing frame and a pull pin, the top of the upper fixing frame is connected to the treadmill column, and the bottom of the lower fixing frame is connected to the base frame; one end of the upper fixing frame and the lower fixing frame are hinged, the pull pin is installed and fixed on the other end of the upper fixing frame, and pull pin positions are provided on both sides of the lower fixing frame, and a movable positioning pin is provided at the front end of the pull pin, and the movable positioning pin is clamped at the pull pin position.

[0005] Furthermore, an inclined portion is provided on the upper side of the pull pin locking position to facilitate the sliding of the movable positioning pin.

[0006] Furthermore, the pull pin includes an outer sleeve, an inner rod, a spring, and a knob. The outer sleeve is fixed on the upper fixed frame. The upper end of the outer sleeve is provided with a spring limiting necking portion, and the inner rod is provided with a spring clamping portion. The spring is sleeved on the inner rod and inserted into the outer sleeve together with the inner rod, so that one end of the spring abuts against the spring limiting necking portion, and the other end abuts against the spring clamping portion; the outer end of the inner rod is connected to the knob, and the inner end of the inner rod is provided with a movable positioning pin mounting rod. The movable positioning pin is perpendicular to the inner rod, and a ring portion is provided in the middle, and both sides of the ring portion are clamping portions. The ring portion of the movable positioning pin is sleeved on the movable positioning pin mounting rod and fixed by a nut.

[0007] Furthermore, a middle thread is provided at the middle of the inner rod, and the spring limiting constriction portion is provided with a constriction portion internal thread that matches the middle thread of the inner rod, so that when the pull pin is pulled out, it can be fixed in an unlocked state.

[0008] Furthermore, the root of the inner rod is provided with a root thread, which cooperates with the internal thread of the necking portion and can be fixed in a locked state.

[0009] Furthermore, the outer portion of the outer sleeve is provided with an outer sleeve thread, and one end of the upper fixing frame is provided with an inner threaded tube for fixing a pull pin.

[0010] The operation assembly and folding process of the present invention is as follows: during assembly, the treadmill column is flipped up / raised, the movable positioning pin is locked into the pull pin position, and the knob is rotated to lock the root thread on the inner rod with the inner thread of the necking part and tightly connected with the outer sleeve, that is, the bayonet is fixed in a locked state to complete the assembly. During folding, the knob is rotated to loosen the inner rod locked in the outer sleeve, and the inner rod is pulled out, the movable positioning pin is withdrawn from the pull pin position, and the knob is rotated to lock the middle thread on the inner rod with the inner thread of the necking part and tightly connected with the outer sleeve, that is, the bayonet is fixed in an unlocked state, and the treadmill column is pressed down to the rear side of the treadmill to complete the folding.

[0011] Compared with the prior art, the advantages of the present invention are: the present invention facilitates the assembly and folding between the uprights and the base frame of the treadmill, ensuring safety; and can avoid potential safety hazards caused by accidental collision; the structural design is ingenious and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the present invention in an unlocked state.

[0013] Figure 2 It is a structural schematic diagram of the pull pin in the present invention.

[0014] Figure 3 It is a schematic diagram of the appearance structure of the pull pin in the present invention.

[0015] Figure 4 It is a structural schematic diagram of the treadmill column and the base frame in an unlocked state.

[0016] Figure 5 It is a structural schematic diagram of the treadmill column and the bottom frame in the locked state. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 5 As shown, a connection mechanism between a treadmill column and a base frame comprises an upper fixing frame 1, a lower fixing frame 2 and a pull pin 3, wherein the top of the upper fixing frame 1 is connected to the treadmill column 4, and the bottom of the lower fixing frame 2 is connected to the base frame 5; the upper fixing frame 1 and the lower fixing frame 2 are hinged at one end, the pull pin 3 is installed and fixed at the other end of the upper fixing frame 1, and pull pin positions 2-1 are provided on both sides of the lower fixing frame 2, and a movable positioning pin 3-8 is provided at the front end of the pull pin 3, and the movable positioning pin 3-8 is clamped at the pull pin position 2-1.

[0019] Furthermore, a sloped portion 2-2 is provided on the upper side of the pull pin locking position 2-1 to facilitate the sliding of the movable positioning pin 3-8.

[0020] Furthermore, the pull pin 3 includes an outer sleeve 3-1, an inner rod 3-2, a spring 3-3, and a knob 3-4. The outer sleeve 3-1 is fixed on the upper fixed frame 1. A spring limiting constriction portion 3-5 is provided at the upper end of the outer sleeve 3-1, and a spring clamping portion 3-6 is provided on the inner rod 3-2. The spring 3-3 is sleeved on the inner rod 3-2 and inserted into the outer sleeve 3-1 together with the inner rod 3-2, so that one end of the spring 3-3 abuts against the spring limiting constriction portion 3-5, and the other end abuts against the spring clamping portion 3-6; the outer end of the inner rod 3-2 is connected to the knob 3-4, and a movable positioning pin mounting rod 3-7 is provided at the inner end of the inner rod 3-2. The movable positioning pin 3-8 is perpendicular to the inner rod 3-2, and a ring portion 3-81 is provided in the middle, and clamping portions 3-82 are on both sides of the ring portion 3-81. The ring portion 3-81 of the movable positioning pin is sleeved on the movable positioning pin mounting rod 3-7 and fixed by a nut 3-12.

[0021] Furthermore, a middle thread 3-9 is provided in the middle of the inner rod 3-2, and the spring limiting constriction portion 3-5 is provided with a constriction portion internal thread 3-10 that cooperates with the middle thread 3-9 of the inner rod, so that when the pull pin 3 is pulled out, it can be fixed in an unlocked state.

[0022] Furthermore, the inner rod 3-2 is provided with a root thread 3-13 at the root, which cooperates with the inner thread 3-10 of the necking portion and can be fixed in a locked state.

[0023] Furthermore, the outer portion of the outer sleeve 3 - 1 is provided with an outer sleeve thread 3 - 11 , and one end of the upper fixing frame 1 is provided with an inner thread tube 1 - 1 for fixing the pull pin 3 .

[0024] The operation assembly and folding process of the present invention: when assembling, flip up / stand up the treadmill column 4, so that the movable positioning pin 3-8 is stuck in the pull pin position 2-1, and the knob 3-4 is rotated to lock the root thread 3-13 on the inner rod 3-2 in the inner thread 3-10 of the necking part and is tightly connected with the outer sleeve 1, that is, the bayonet is fixed in the locked state, and the assembly is completed. When folding, the knob 3-4 is rotated to loosen the inner rod 3-2 locked in the outer sleeve 3-1, and the inner rod 3-2 is pulled out, and the movable positioning pin 3-8 is withdrawn from the pull pin position 2-1, and the knob 3-4 is rotated to lock the middle thread 3-9 on the inner rod 3-2 in the inner thread 3-10 of the necking part and is tightly connected with the outer sleeve 3-1, that is, the bayonet is fixed in the unlocked state, and the treadmill column 4 is pressed down to the rear side of the treadmill to complete the folding.

[0025] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A connection mechanism between a treadmill column and a base frame, characterized in that: The treadmill comprises an upper fixing frame, a lower fixing frame and a pull pin, wherein the top of the upper fixing frame is connected to the treadmill column, and the bottom of the lower fixing frame is connected to the base frame; one end of the upper fixing frame and the lower fixing frame are hinged, and the pull pin is installed and fixed on the other end of the upper fixing frame, and pull pin clamping positions are provided on both sides of the lower fixing frame, and a movable positioning pin is provided at the front end of the pull pin, and the movable positioning pin is clamped at the pull pin clamping position; an inclined portion is provided on the upper side of the pull pin clamping position for easy sliding of the movable positioning pin; the pull pin comprises an outer sleeve, an inner rod, a spring, and a knob, and the outer sleeve is fixed to the upper fixing frame, a spring limiting constriction portion is provided at the upper end of the outer sleeve, a spring clamping portion is provided on the inner rod, and the spring is sleeved on the inner rod and together with the inner rod Insert them into the outer sleeve together, so that one end of the spring rests against the spring limiting shrinkage part, and the other end rests against the spring clamping part; the outer end of the inner rod is connected to the knob, and the inner end of the inner rod is provided with a movable positioning pin mounting rod, the movable positioning pin is perpendicular to the inner rod, and a ring part is provided in the middle, and the two sides of the ring part are clamping parts, the ring part of the movable positioning pin is sleeved on the movable positioning pin mounting rod and fixed by a nut; the middle part of the inner rod is provided with a middle thread, and the spring limiting shrinkage part is provided with a shrinkage part internal thread matching the middle thread of the inner rod; the root of the inner rod is provided with a root thread; the outside of the outer sleeve is provided with a sleeve external thread, and one end of the upper fixed frame is provided with an internal threaded cylinder for fixing the pull pin.

Images