Piston rod locking device capable of preventing fracture

Abstract

The utility model discloses an anti-fracture piston rod locking device which comprises a first piston rod, one side of the first piston rod is movably connected with a second piston rod, the inner walls of the two sides of the first piston rod are provided with first installation openings, and the inner walls of the first installation openings are provided with moving mechanisms. A second mounting hole is formed in the inner wall of the second piston rod, a clamping mechanism is mounted on the inner wall of the second mounting hole, and the moving mechanism comprises a movable handle, a first movable rod, a first connecting column, a first connecting body, a first spring, a second connecting body, a third connecting body, a second spring and a fourth connecting body. By arranging the moving mechanism and the clamping mechanism and utilizing the elastic force among a plurality of springs, the two fractured piston rods are locked and fixed, so that the safety and stability of a system are guaranteed, the piston rods do not need to be replaced in a short time, the use cost of the piston rods is reduced, and the service life of the piston rods is prolonged. The device practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of piston rod locking devices, in particular to a piston rod locking device capable of preventing breakage. Background Art

[0002] The piston rod is an important component in mechanical equipment, usually used to convert linear motion into rotary motion, or vice versa. It is usually cylindrical, sometimes square or other shapes, depending on its use and design requirements in a specific mechanical system. The piston rod is usually made of high-strength metal materials such as steel, stainless steel or aluminum alloy. Its main function is to transmit force or motion, and it is commonly found in hydraulic cylinders, cylinders, engines, hydraulic machinery and other equipment. In hydraulic or pneumatic systems, the piston rod is responsible for converting the pressure of the fluid into mechanical motion, such as pushing the piston in the cylinder with compressed air or liquid. The design of the piston rod should take into account factors such as the pressure it bears, the speed of movement, and the strength of the material to ensure that it can operate stably and reliably during operation. At the same time, in order to prevent the piston rod from accidentally moving or breaking during operation, it is usually equipped with corresponding locking devices or safety measures. The piston rod locking device is a device used to fix the piston rod, which is usually used in hydraulic or pneumatic systems.

[0003] However, the existing piston rod is prone to breakage during movement or operation, and there is a problem that it cannot be locked. The piston rod usually needs to be replaced, which increases the cost of use. Therefore, we propose a piston rod locking device that prevents breakage. Utility Model Content

[0004] The purpose of the utility model is to provide a piston rod locking device that prevents breakage, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, a piston rod locking device for preventing breakage is provided, comprising a first piston rod, a second piston rod being movably connected to one side of the first piston rod, first mounting openings being provided on the inner walls on both sides of the first piston rod, a moving mechanism being installed on the inner wall of the first mounting opening, a second mounting hole being provided on the inner wall of the second piston rod, a clamping mechanism being installed on the inner wall of the second mounting hole, the moving mechanism comprising a movable handle, a first movable rod, a first connecting column, a first connecting body, a first spring, a second connecting body, a third connecting body, a second spring, and a fourth connecting body, and the clamping mechanism comprising a fifth connecting body, a second connecting column, a second movable rod, a third spring, and a sixth connecting body.

[0006] According to the piston rod locking device for preventing breakage, the cross-section of the movable handle is elliptical, one side of the movable handle is fixedly connected to a first movable rod, the outer wall of the first movable rod is movably connected to a first connecting column, and the outer wall of the first connecting column is fixedly connected to the inner wall of the first mounting port.

[0007] According to the piston rod locking device for preventing breakage, the outer wall of the first movable rod is fixedly connected with a first connecting body, a second connecting body and a second spring, and the outer wall of the first movable rod is sleeved with a first spring, a third connecting body and a fourth connecting body.

[0008] According to the piston rod locking device for preventing breakage, the first spring is located between the first connecting body and the second connecting body, one side of the first spring is fixedly connected to the first connecting body, and the side of the first spring away from the first connecting body is fixedly connected to the inner wall of the first installation opening.

[0009] According to the piston rod locking device for preventing breakage, the second connecting body is movably connected to the third connecting body on the side away from the first connecting body, the third connecting body and the first movable rod are movably connected, the third connecting body is fixedly connected to the second spring on the side away from the second connecting body, the second spring is fixedly connected to the fourth connecting body on the side away from the third connecting body, the cross-section of the third connecting body is trapezoidal, the fourth connecting body is fixedly connected to the first movable rod, and the fourth connecting body is hemispherical.

[0010] According to the piston rod locking device for preventing breakage, the bottom of the fifth connecting body is fixedly connected to the second movable rod, the outer wall of the second movable rod is movably connected to the second connecting column, the outer wall of the second connecting column is fixedly connected to the inner wall of the second mounting hole, the outer wall of the second movable rod is sleeved with a third spring, and the third spring is located below the second connecting column.

[0011] According to the piston rod locking device for preventing breakage, the bottom of the second movable rod is fixedly connected with a sixth connecting body, the cross-section of the sixth connecting body is triangular, one side of the third spring is fixedly connected to the second connecting column, and the side of the third spring away from the second connecting column is fixedly connected to the sixth connecting body.

[0012] The beneficial effects of the utility model are as follows: by setting a moving mechanism and a clamping mechanism, the elastic force between multiple springs is utilized to lock two broken piston rods, which is used to fix the broken piston rods, thereby ensuring the safety and stability of the system, making it unnecessary to replace the piston rod in a short time, reducing the use cost of the piston rod and enhancing the practicality of the device.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall three-dimensional structural diagram of a piston rod locking device for preventing breakage according to the utility model;

[0016] Figure 2 This is a disassembled three-dimensional structural diagram of a piston rod locking device for preventing breakage according to the utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of a moving mechanism of a piston rod locking device for preventing breakage according to the utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of a clamping mechanism of a piston rod locking device for preventing breakage according to the utility model;

[0019] Legend:

[0020] 1. First piston rod; 2. Second piston rod; 3. First mounting opening; 4. Moving mechanism; 5. Second mounting hole; 6. Clamping mechanism; 41. Movable handle; 42. First movable rod; 43. First connecting column; 44. First connecting body; 45. First spring; 46. Second connecting body; 47. Third connecting body; 48. Second spring; 49. Fourth connecting body; 61. Fifth connecting body; 62. Second connecting column; 63. Second movable rod; 64. Third spring; 65. Sixth connecting body. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figures 1 to 4The utility model embodiment is a piston rod locking device for preventing breakage, which includes a first piston rod 1, one side of the first piston rod 1 is movably connected to the second piston rod 2, the inner walls of both sides of the first piston rod 1 are provided with first mounting openings 3, the inner wall of the first mounting opening 3 is provided with a moving mechanism 4, the inner wall of the second piston rod 2 is provided with a second mounting hole 5, the inner wall of the second mounting hole 5 is provided with a clamping mechanism 6, the moving mechanism 4 includes a movable handle 41, a first movable rod 42, a first connecting column 43, a first connecting body 44, a first spring 45, a second connecting body 46, a third connecting body 47, a second spring 48, and a fourth connecting body 49, and the clamping mechanism 6 includes a fifth connecting body 61, a second connecting column 62, a second movable rod 63, a third spring 64, and a sixth connecting body 65.

[0023] The movable handle 41 has an elliptical cross-section. A first movable rod 42 is fixedly connected to one side of the movable handle 41 . A first connecting column 43 is movably connected to the outer wall of the first movable rod 42 . The outer wall of the first connecting column 43 is fixedly connected to the inner wall of the first installation opening 3 .

[0024] The first movable rod 42 is fixedly connected with a first connecting body 44 , a second connecting body 46 , and a second spring 48 on its outer wall. The first movable rod 42 is sleeved with a first spring 45 , a third connecting body 47 , and a fourth connecting body 49 .

[0025] The first spring 45 is located between the first connecting body 44 and the second connecting body 46 . One side of the first spring 45 is fixedly connected to the first connecting body 44 , and the side of the first spring 45 away from the first connecting body 44 is fixedly connected to the inner wall of the first installation opening 3 .

[0026] The side of the second connecting body 46 away from the first connecting body 44 is movably connected to the third connecting body 47, the third connecting body 47 and the first movable rod 42 are movably connected, the side of the third connecting body 47 away from the second connecting body 46 is fixedly connected to the second spring 48, the side of the second spring 48 away from the third connecting body 47 is fixedly connected to the fourth connecting body 49, the cross-section of the third connecting body 47 is trapezoidal, the fourth connecting body 49 is fixedly connected to the first movable rod 42, and the fourth connecting body 49 is hemispherical.

[0027] The bottom of the fifth connecting body 61 is fixedly connected to the second movable rod 63, the outer wall of the second movable rod 63 is movably connected to the second connecting column 62, the outer wall of the second connecting column 62 is fixedly connected to the inner wall of the second mounting hole 5, and the outer wall of the second movable rod 63 is sleeved with a third spring 64, which is located below the second connecting column 62.

[0028] The bottom of the second movable rod 63 is fixedly connected with a sixth connecting body 65 , the cross section of the sixth connecting body 65 is triangular, one side of the third spring 64 is fixedly connected to the second connecting column 62 , and the side of the third spring 64 away from the second connecting column 62 is fixedly connected to the sixth connecting body 65 .

[0029] Among them, the first piston rod 1 and the second piston rod 2 are both made of long fiber composite materials. Long fiber composite materials, also known as continuous fiber composite materials, are composite materials composed of long (continuous) fibers and resins. Long fibers can give the base resin synergistic mechanical properties, such as high modulus, high strength, high toughness, etc. As with granular filler composite materials, the interface bonding condition plays an important role in determining the modulus, strength and toughness, and has the performance of preventing fracture.

[0030] Working principle: When it is necessary to use the piston rod locking device for preventing breakage of the utility model, rotate the movable handle 41 to make the first movable rod 42 move on the inner wall of the first mounting port 3. Since the first spring 45 is fixedly connected to the inner wall of the first mounting port 3 on the side away from the movable handle 41, the second connecting body 46, the third connecting body 47, the second spring 48, and the fourth connecting body 49 approach the second mounting hole 5 until the fourth connecting body 49 and the sixth connecting body 65 are squeezed, so that the sixth connecting body 65 is lifted upward under the action of the third spring 64, so that the sixth connecting body 65 is placed between the third connecting body 47 and the fourth connecting body 49 to achieve locking.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A piston rod locking device for preventing breakage, comprising a first piston rod (1), characterized in that: One side of the first piston rod (1) is movably connected to the second piston rod (2); the inner walls of both sides of the first piston rod (1) are provided with first mounting openings (3); the inner walls of the first mounting openings (3) are provided with a moving mechanism (4); the inner wall of the second piston rod (2) is provided with a second mounting hole (5); the inner wall of the second mounting hole (5) is provided with a clamping mechanism (6); the moving mechanism (4) comprises a movable handle (41), a first movable rod (42), a first connecting column (43), a first connecting body (44), a first spring (45), a second connecting body (46), a third connecting body (47), a second spring (48), and a fourth connecting body (49); the clamping mechanism (6) comprises a fifth connecting body (61), a second connecting column (62), a second movable rod (63), a third spring (64), and a sixth connecting body (65).

2. A piston rod locking device for preventing breakage according to claim 1, characterized in that: The movable handle (41) has an elliptical cross-section. A first movable rod (42) is fixedly connected to one side of the movable handle (41). The outer wall of the first movable rod (42) is movably connected to a first connecting column (43). The outer wall of the first connecting column (43) is fixedly connected to the inner wall of the first mounting opening (3).

3. A piston rod locking device for preventing breakage according to claim 2, characterized in that: The outer wall of the first movable rod (42) is fixedly connected with a first connecting body (44), a second connecting body (46), and a second spring (48), and the outer wall of the first movable rod (42) is sleeved with a first spring (45), a third connecting body (47), and a fourth connecting body (49).

4. A piston rod locking device for preventing breakage according to claim 3, characterized in that: The first spring (45) is located between the first connecting body (44) and the second connecting body (46), one side of the first spring (45) is fixedly connected to the first connecting body (44), and the side of the first spring (45) away from the first connecting body (44) is fixedly connected to the inner wall of the first installation opening (3).

5. A piston rod locking device for preventing breakage according to claim 4, characterized in that: The side of the second connecting body (46) away from the first connecting body (44) is movably connected to the third connecting body (47), and the third connecting body (47) is movably connected to the first movable rod (42). The side of the third connecting body (47) away from the second connecting body (46) is fixedly connected to the second spring (48), and the side of the second spring (48) away from the third connecting body (47) is fixedly connected to the fourth connecting body (49). The cross-section of the third connecting body (47) is trapezoidal, and the fourth connecting body (49) is fixedly connected to the first movable rod (42). The fourth connecting body (49) is hemispherical.

6. A piston rod locking device for preventing breakage according to claim 5, characterized in that: The bottom of the fifth connecting body (61) is fixedly connected to a second movable rod (63), the outer wall of the second movable rod (63) is movably connected to a second connecting column (62), the outer wall of the second connecting column (62) is fixedly connected to the inner wall of the second mounting hole (5), the outer wall of the second movable rod (63) is sleeved with a third spring (64), and the third spring (64) is located below the second connecting column (62).

7. A piston rod locking device for preventing breakage according to claim 6, characterized in that: The bottom of the second movable rod (63) is fixedly connected to a sixth connecting body (65), the cross-section of the sixth connecting body (65) is triangular, one side of the third spring (64) is fixedly connected to the second connecting column (62), and the side of the third spring (64) away from the second connecting column (62) is fixedly connected to the sixth connecting body (65).

Images