Device for adjusting length of pull rope

Abstract

The utility model discloses a device for adjusting the length of a pull rope, which relates to the field of lock catches and comprises a mounting plate, a fixed plate is fixedly arranged on the mounting plate, a movable handle is rotatably arranged on the mounting plate, a plurality of teeth are arranged on opposite surfaces of the movable handle and the fixed plate, inclined surfaces of two corresponding teeth are symmetrical to each other, and the fixed plate and the movable handle are fixedly arranged on the mounting plate. And a pull rope is inserted between the fixed plate and the movable handle. The device has the beneficial effects that through cooperation of the fixed plate, the movable handle and the teeth, the pull rope can be unidirectionally locked under the condition that the device is not manually operated, that is, the pull rope can be pulled in one direction without being limited, and the pull rope cannot be moved due to limitation of the fixed plate and the movable handle, so that the pull rope is very convenient to adjust due to the design; adjustment can be achieved through direct pulling, due to the shape design of the movable handle, when the traction force borne by the pull rope is larger, the pull rope is locked more firmly through the movable handle and the fixing plate, and the firmness and stability of the device for locking the pull rope are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lock buckles, in particular to a device for adjusting the length of a draw cord. Background Art

[0002] When exercising on a Pilates bed, the length of the rope needs to be adjusted according to the body shape of the fitness user and the difficulty they can bear. Existing rope adjustment devices generally use knobs, buckles or sliding adjusters. The adjustment steps are cumbersome and there is a possibility of locking failure, which poses a safety risk. For example, the knob type has a screw buckle that is easy to loosen, resulting in insufficient support for the rope, which will cause the rope to lose its lock. Utility Model Content

[0003] The purpose of the present invention is to provide a device for adjusting the length of a drawstring in order to solve the above-mentioned problem, as described below.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The utility model provides a device for adjusting the length of a pull rope, comprising a mounting plate, a fixed plate fixedly provided on the mounting plate, a movable handle rotatably provided on the mounting plate, a plurality of teeth provided on opposite surfaces of the movable handle and the fixed plate, and the inclined surfaces of the two corresponding teeth are symmetrical to each other, and a pull rope is inserted between the fixed plate and the movable handle;

[0006] The movable handle is composed of two parts, and the rotation connection point between the movable handle and the mounting plate is located at the connection between the two parts of the movable handle, and the part of the movable handle provided with teeth is inclined to the pull rope;

[0007] The mounting plate is provided with a tension spring for pulling the movable handle so that the teeth of the movable handle are close to the pull rope.

[0008] With the above-mentioned device for adjusting the length of the drawstring, the fixed plate cooperates with the movable handle and the teeth to lock the drawstring in one direction when no manual operation is performed. That is, the drawstring can be pulled in one direction without restriction. If it is pulled in the other direction, the drawstring will be restricted by the fixed plate and the movable handle and cannot be moved.

[0009] When it is necessary to release the restriction on the drawstring, the movable handle can be manually swung to disengage the teeth of the movable handle from the drawstring, and the drawstring can then be moved at will.

[0010] Preferably, the pull rope is in contact with the teeth.

[0011] Preferably, a movable groove is provided on the mounting plate, and a fixing pin is slidably provided in the movable groove, and the fixing pin is fixed to the movable handle, and both ends of the tension spring are fixed to the mounting plate and the fixing pin respectively.

[0012] Preferably, a baffle is provided on the fixed plate, the baffle is in contact with the movable handle, and the baffle is located between the fixed plate and the movable handle.

[0013] Preferably, a fixing ring is provided on the mounting plate.

[0014] Preferably, the teeth are composed of two surfaces, one of which is an inclined surface and the other is a straight surface perpendicular to the pull rope.

[0015] Preferably, the drawstring passes through a fixing ring.

[0016] The beneficial effects are:

[0017] 1. Through the cooperation of the fixed plate, the movable handle and the teeth, the drawstring can be locked in one direction when the device is not manually operated. That is, the drawstring can be pulled in one direction without restriction. If it is pulled in the other direction, the drawstring will be restricted by the fixed plate and the movable handle and cannot be moved. This design makes it very convenient to adjust the drawstring. It can be adjusted by simply pulling. In addition, due to the shape design of the movable handle, the greater the pulling force on the drawstring, the more firmly the movable handle and the fixed plate lock the drawstring, further improving the firmness and stability of the drawstring locking device.

[0018] 2. By manually swinging the movable handle, the teeth of the movable handle are separated from the pull rope. Then the pull rope can be moved at will without being restricted by direction, making the device flexible and meeting various needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a front view structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the front view structure of the mounting plate of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the mounting plate of the utility model.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Mounting plate; 2. Fixed plate; 3. Movable handle; 4. Teeth; 5. Pull rope; 6. Fixed ring; 7. Movable groove; 8. Fixed pin; 9. Baffle; 10. Tension spring. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 4 As shown, the utility model provides a device for adjusting the length of a pull rope, comprising a mounting plate 1, a fixed plate 2 fixedly provided on the mounting plate 1, a movable handle 3 rotatably provided on the mounting plate 1, a plurality of teeth 4 provided on opposite surfaces of the movable handle 3 and the fixed plate 2, and the inclined surfaces of the two corresponding teeth 4 are symmetrical to each other, and a pull rope 5 is interspersed between the fixed plate 2 and the movable handle 3;

[0028] The movable handle 3 is composed of two parts, and the rotation connection point between the movable handle 3 and the mounting plate 1 is located at the connection between the two parts of the movable handle 3, and the part of the movable handle 3 provided with the teeth 4 is inclined to the pull rope 5;

[0029] A tension spring 10 is provided on the mounting plate 1 for pulling the movable handle 3 so that the teeth of the movable handle 3 are close to the pull rope 5 .

[0030] As an optional embodiment, the pull rope 5 is in contact with the teeth 4 .

[0031] A movable groove 7 is provided on the mounting plate 1, and a fixed pin 8 is slidably provided in the movable groove 7, and the fixed pin 8 is fixed to the movable handle 3. The two ends of the tension spring 10 are respectively fixed to the mounting plate 1 and the fixed pin 8. When the tension spring 10 is pulled, the movable handle 3 pushes the pull rope 5, so that both rows of teeth 4 are in contact with the pull rope 5.

[0032] A baffle 9 is provided on the fixed plate 2, which contacts the movable handle 3 and is located between the fixed plate 2 and the movable handle 3. The baffle 9 can prevent the pull rope 5 from falling off between the fixed plate 2 and the movable handle 3 during the pulling process.

[0033] A fixing ring 6 is provided on the mounting plate 1 , and the pull rope 5 passes through the fixing ring 6 , and the fixing ring 6 can guide the pull rope 5 .

[0034] The teeth 4 are composed of two surfaces, one of which is an inclined surface and the other is a straight surface perpendicular to the pull rope 5. This design facilitates the processing of the teeth 4.

[0035] With the above structure, the fixed plate 2 cooperates with the movable handle 3 and the teeth 4 to lock the pull rope 5 in one direction when no manual operation is performed. That is, the pull rope 5 can be pulled in one direction without restriction. If it is pulled in the other direction, the pull rope 5 will be restricted by the fixed plate 2 and the movable handle 3 and cannot be moved.

[0036] When it is necessary to release the restriction on the pull rope 5, the movable handle 3 can be manually swung to disengage the teeth 4 of the movable handle 3 from the pull rope 5, and then the pull rope 5 can be moved at will.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A device for adjusting the length of a drawstring, characterized by: The invention comprises a mounting plate (1), a fixed plate (2) is fixedly provided on the mounting plate (1), a movable handle (3) is rotatably provided on the mounting plate (1), a plurality of teeth (4) are provided on the opposite surfaces of the movable handle (3) and the fixed plate (2), and the inclined surfaces of the two corresponding teeth (4) are symmetrical to each other, and a pull rope (5) is inserted between the fixed plate (2) and the movable handle (3); The movable handle (3) is composed of two parts, and the rotation connection point between the movable handle (3) and the mounting plate (1) is located at the connection between the two parts of the movable handle (3), and the part of the movable handle (3) provided with the teeth (4) is inclined toward the pull rope (5); The mounting plate (1) is provided with a tension spring (10) for pulling the movable handle (3) so that the teeth of the movable handle (3) are close to the pull rope (5).

2. The device for adjusting the length of a drawstring according to claim 1, characterized in that: The pull rope (5) is in contact with the teeth (4).

3. The device for adjusting the length of a drawstring according to claim 1, characterized in that: The mounting plate (1) is provided with a movable groove (7), and a fixing pin (8) is slidably provided in the movable groove (7), and the fixing pin (8) is fixed to the movable handle (3), and the two ends of the tension spring (10) are respectively fixed to the mounting plate (1) and the fixing pin (8).

4. The device for adjusting the length of a drawstring according to claim 1, characterized in that: A baffle (9) is provided on the fixed plate (2), the baffle (9) is in contact with the movable handle (3), and the baffle (9) is located between the fixed plate (2) and the movable handle (3).

5. The device for adjusting the length of a drawstring according to claim 1, characterized in that: A fixing ring (6) is provided on the mounting plate (1).

6. The device for adjusting the length of a drawstring according to claim 1, characterized in that: The teeth (4) are composed of two surfaces, one of which is an inclined surface and the other is a straight surface perpendicular to the pull rope (5).

7. The device for adjusting the length of a drawstring according to claim 5, characterized in that: The drawstring (5) passes through the fixing ring (6).

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