Quick release mechanism

Abstract

The utility model discloses a quick release mechanism which comprises a connecting rod, one end of the connecting rod is fixedly connected with a limiting sleeve, the limiting sleeve is rotatably installed in a center copper sleeve of a center base, and the other end of the connecting rod is provided with a handle assembly. The central copper sleeve is fixedly embedded in the central seat, the left side and the right side of the central copper sleeve are respectively provided with a locking copper sleeve, and the locking copper sleeves are fixedly embedded in the central seat; a knob matched with the locking copper sleeve on the central seat is mounted on the connecting rod; a limiting sliding hole of an arc-shaped structure is formed in the upper portion of the center copper sleeve and penetrates through the center base, a limiting pin shaft sliding along the limiting sliding hole is arranged in the limiting sliding hole, and the limiting pin shaft is fixedly installed on the back of the connecting rod. The quick release mechanism provided by the utility model is simple in structure, realizes efficient position adjustment, and facilitates line layout in the structure.

Description

Technical Field

[0001] This utility model relates to a quick-release mechanism and belongs to the technical field of upper limb rehabilitation training equipment. Background Technology

[0002] Upper limb rehabilitation training is a series of restorative training programs for patients with upper limb dysfunction or injury, aimed at improving upper limb function, strengthening muscles, and enhancing joint mobility and coordination.

[0003] Patent No. CN202310889411.X discloses an upper limb force tactile feedback rehabilitation training device, in which the handle assembly is connected to the central seat via a linkage assembly. The linkage assembly includes two first linkages, one second linkage, and a linkage seat. One end of each of the two first linkages and the second linkage is hinged to the central seat, and the other end is hinged to the linkage seat. Both the first linkages and the second linkage are horizontally arranged. The second linkage has two through holes, and screws are installed in the through holes. A locking plate is fixed between the two first linkages, and the locking plate has threaded holes.

[0004] Based on practical experience, the following technical problems still exist regarding the technical solutions disclosed in the aforementioned patent documents:

[0005] The linkage assembly has a relatively complex structure and is locked with screws, requiring additional tools for the locking process, which makes the linkage assembly inefficient in the position adjustment process. In addition, the linkage assembly consists of multiple links, and the ends of each link are hinged, which makes it inconvenient to lay out the wiring inside the linkage assembly.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of the prior art, this utility model provides a quick-release mechanism with a simple structure, enabling efficient position adjustment, and its internal structure facilitates wiring.

[0008] To solve the above technical problems, the present invention adopts the following technical solution:

[0009] A quick-release mechanism includes a connecting rod, one end of which is fixedly connected to a limiting sleeve, the limiting sleeve being rotatably installed in the central copper sleeve of the central seat, and a handle assembly being installed on the other end of the connecting rod.

[0010] The central copper sleeve is embedded and fixed inside the central seat, and locking copper sleeves are provided on the left and right sides of the central copper sleeve, which are embedded and fixed inside the central seat.

[0011] A knob is installed on the connecting rod to engage with the locking copper sleeve on the center seat.

[0012] Furthermore, a retaining ring is installed on the inner end of the limiting sleeve.

[0013] Furthermore, the knob is installed in a mounting hole provided through the central seat, and the mounting hole is located near the limiting sleeve.

[0014] Furthermore, an arc-shaped limiting sliding hole is provided above the central copper sleeve, and the limiting sliding hole is set through the central seat.

[0015] Furthermore, a limiting pin is provided inside the limiting sliding hole, and the limiting pin is fixedly installed on the back of the connecting rod.

[0016] Furthermore, the center seat has two positioning grooves arranged vertically on the end face near the connecting rod, and the two positioning grooves are distributed on the upper and lower sides of the center copper sleeve.

[0017] Furthermore, the connecting rod has two positioning protrusions on the end face near the center seat that cooperate with the positioning groove. The two positioning protrusions are distributed on the upper and lower sides of the limiting sleeve and are engaged in the positioning groove.

[0018] Furthermore, the connecting rod has a channel inside for wiring, and the limiting sleeve has an avoidance hole on the side near the connecting rod wiring channel.

[0019] Furthermore, an adapter plate cover is fastened and fixed behind the center seat, and an adapter plate connected to the circuit is installed inside the adapter plate cover.

[0020] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0021] When it is necessary to switch to the training position, pull out the knob and rotate the connecting rod 180°. During the rotation, the limit pin slides precisely along the limit slide hole. After the connecting rod is rotated, the knob is inserted into the corresponding locking copper sleeve to lock the position of the connecting rod. The position adjustment process is efficient.

[0022] The overall structure of this utility model is simple and reasonable. The wiring can be laid in the connecting rod and the limiting sleeve, which is convenient for installation and is not affected by the rotation angle.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is an installation diagram of this utility model;

[0025] Figure 2 This is a three-dimensional structural view of the present invention;

[0026] Figure 3 This is a structural front view of the present invention;

[0027] Figure 4 yes Figure 3 Schematic diagram of the cross section at point AA;

[0028] Figure 5 This is a schematic diagram of the central seat structure;

[0029] Figure 6 This is a schematic diagram of the connecting rod.

[0030] In the diagram, 1-connecting rod, 2-center seat, 3-limit sleeve, 4-handle assembly, 5-knob, 6-center copper sleeve, 7-positioning groove, 8-locking copper sleeve, 9-limiting sliding hole, 10-mounting hole, 11-positioning protrusion, 12-limiting pin, 13-circlip, 14-adapter plate cover, 15-adapter plate. Detailed Implementation

[0031] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0032] like Figures 1-6 As shown in the figure, this utility model provides a quick-release mechanism, including a connecting rod 1. One end of the connecting rod 1 is fixedly connected to a limiting sleeve 3. The limiting sleeve 3 is rotatably installed in the central copper sleeve 6 of the central seat 2. The connecting rod 1 and the limiting sleeve 3 can rotate 180° along the central copper sleeve 6. The other end of the connecting rod 1 is equipped with a handle assembly 4.

[0033] A retaining spring 13 is installed on the inner end of the limiting sleeve 3 to prevent the limiting sleeve 3 from coming out of the central copper sleeve 6 during the back-and-forth sliding process.

[0034] The central copper sleeve 6 is embedded and fixed inside the central base 2. Locking copper sleeves 8 are provided on the left and right sides of the central copper sleeve 6, and the locking copper sleeves 8 are embedded and fixed inside the central base 2.

[0035] A knob 5 is installed on the connecting rod 1, which cooperates with the locking copper sleeve 8 on the center seat 2. The knob 5 is installed in the mounting hole 10 that passes through the center seat 2, and the mounting hole 10 is located near the limiting sleeve 3. The knob 5 can lock the connecting rod 1 in two positions.

[0036] The center copper sleeve 6 is provided with an arc-shaped limiting sliding hole 9 above it. The limiting sliding hole 9 passes through the center seat 2 and is provided with a limiting pin 12 that slides along it. The limiting pin 12 is fixedly installed on the back of the connecting rod 1 and rotates synchronously with the connecting rod 1 to ensure accuracy during the swing process.

[0037] The center seat 2 has two positioning grooves 7 arranged vertically on the end face near the connecting rod 1. The two positioning grooves 7 are distributed on the upper and lower sides of the center copper sleeve 6.

[0038] The connecting rod 1 has two positioning protrusions 11 on its end face near the center seat 2, which cooperate with the positioning groove 7. The two positioning protrusions 11 are distributed on the upper and lower sides of the limiting sleeve 3. The positioning protrusions 11 are engaged in the positioning groove 7, so that the connecting rod 1 and the center seat 2 are accurately positioned and the connection is secure.

[0039] The connecting rod 1 has a channel inside for wiring, and the limiting sleeve 3 has an avoidance hole on the side near the wiring channel of the connecting rod 1.

[0040] An adapter plate cover 14 is fastened and fixed behind the center seat 2, and an adapter plate 15 connected to the circuit is installed inside the adapter plate cover 14.

[0041] The specific working principle of this utility model is as follows:

[0042] like Figure 1 The position shown is the right-hand training position. When it is necessary to switch to the left-hand training position, pull out the knob 5 that cooperates with the locking copper sleeve 8 on the right side of the center seat 2, pull the connecting rod 1 outward, so that the positioning protrusion 11 of the connecting rod 1 disengages from the positioning groove 7 of the center seat 2, and the connecting rod 1 rotates 180° to the left. During the rotation, the limiting pin 12 slides precisely along the limiting sliding hole 9. After the connecting rod 1 has rotated, it snaps inward, so that the positioning protrusion 11 engages with the positioning groove 7. The knob 5 is inserted into the locking copper sleeve 8 on the left side of the center seat 2 to lock the position of the connecting rod 1. Finally, the left-hand handle assembly 4 can be replaced, so as to realize the quick replacement of the left and right handle assemblies 4.

[0043] In this invention, the wiring is installed inside the connecting rod and the limiting sleeve, which facilitates installation and is not affected by the rotation angle.

[0044] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A quick release mechanism characterized by: The utility model provides a kind of handle, including connecting rod (1), one end of connecting rod (1) is fixedly connected with limiting sleeve (3), limiting sleeve (3) is rotatably installed in the center copper sleeve (6) of center seat (2), and handle assembly (4) is installed in the other end of connecting rod (1);The center copper sleeve (6) is embedded and fixed in the inside of center seat (2), and the left and right sides of center copper sleeve (6) are respectively equipped with locking copper sleeve (8), and locking copper sleeve (8) is embedded and fixed in center seat (2);Rotary knob (5) is installed on connecting rod (1) and cooperated with locking copper sleeve (8) on center seat (2).

2. A quick release mechanism as claimed in claim 1, wherein: The inner end of the limiting sleeve (3) is provided with a clamping spring (13).

3. A quick release mechanism as claimed in claim 1, wherein: The rotary knob (5) is installed in the mounting hole (10) penetrating the center seat (2), and the mounting hole (10) is arranged close to the limiting sleeve (3).

4. A quick release mechanism as claimed in claim 1, wherein: The center copper sleeve (6) is provided with an arc-shaped limiting sliding hole (9) above, and the limiting sliding hole (9) penetrates the center seat (2).

5. A quick release mechanism as claimed in claim 4, wherein: The limiting sliding hole (9) is provided with a limiting pin shaft (12) sliding along it, and the limiting pin shaft (12) is fixedly installed on the back of the connecting rod (1).

6. A quick release mechanism as claimed in claim 1, wherein: The end surface of the center seat (2) close to the connecting rod (1) is provided with two positioning grooves (7) arranged above and below, and the two positioning grooves (7) are distributed above and below the center copper sleeve (6).

7. A quick release mechanism as claimed in claim 6, wherein: The end surface of the connecting rod (1) close to the center seat (2) is provided with two positioning protrusions (11) matched with the positioning grooves (7), and the two positioning protrusions (11) are distributed above and below the limiting sleeve (3), and the positioning protrusions (11) are clamped in the positioning grooves (7).

8. A quick release mechanism as claimed in claim 1, wherein: The connecting rod (1) is provided with a channel inside for wiring layout, and the limiting sleeve (3) is provided with a clearance hole close to one side of the wiring channel of the connecting rod (1).

9. A quick release mechanism as claimed in claim 8, wherein: The center seat (2) is provided with an adapter plate cover (14) fixed at the back, and the adapter plate cover (14) is provided with an adapter plate (15) connected with the wiring inside.

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