Air cylinder with locking function

Abstract

The utility model provides an air cylinder with a locking function, which relates to the technical field of air cylinders and comprises an air cylinder body, an air inlet pipe and an air outlet pipe are arranged on one side of the air cylinder body in a penetrating manner, a telescopic rod is arranged in the air cylinder body, limiting components are fixed on two sides of the outer wall of the air cylinder body, and a connecting ring is fixed at the top end of the outer wall of the telescopic rod. According to the device, when a telescopic rod extends, a connecting ring and a plurality of assemblies move together at the moment, a spring can keep stretching a second supporting rod all the time, so that the bottom end of the second supporting rod gets close to an air cylinder body when the second supporting rod is not affected by external force, and a clamping block can be located in a corresponding limiting assembly all the time; and when the telescopic rod stops moving, the inclined limiting assembly and the clamping block enable the clamping block not to be separated from the limiting assembly when the limiting assembly provides support, and therefore the effects that locking is conducted through supporting of the supporting rod, and the situation that after locking, the force for extruding the telescopic rod is too large, and the telescopic rod slides is avoided are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cylinders, and more specifically, particularly relates to a cylinder with a locking function. Background Art

[0002] Generally, with the continuous development of automation technology and the continuous increase of labor costs, mechanical equipment will inevitably develop in the direction of high speed, high efficiency and full automation. The realization of automation is inseparable from electric and pneumatic actuators. The cylinder is the most common pneumatic actuator. The locking cylinder of the existing technology has a simple structure, the force is not uniform when locking, and the locking reliability is relatively poor, which limits the technical effect and application of the locking cylinder. The locking function is mostly used for protection to prevent the cylinder from shrinking due to excessive external force after extension, thereby causing danger.

[0003] The existing publication number CN213270533U discloses a wear-resistant cylinder with a locking function. Although the locking block is embedded in the fixing groove, the locking mechanism can buckle the fixing mechanism, so that the clamping force of the locking block is uniform, which ensures the reliability of the locking of the wear-resistant cylinder. The fixing mechanism can be buckled by twisting the rotating rod to quickly lock the wear-resistant cylinder. The limiting plate can limit the left and right movement of the rotating rod so that the rotating rod can rotate stably, ensuring that the locking mechanism can smoothly buckle or release the fixing mechanism.

[0004] Based on the above, the inventors found the following problems: However, the cylinder with locking function is locked by setting a locking mechanism inside the cylinder, and the internal control of the cylinder needs to be equipped with a five-way single-control solenoid valve to control the airflow direction, which increases the cost of the cylinder. At the same time, the internal space is limited, resulting in a limited contact area between the locking mechanism and the telescopic rod of the gas cylinder. The locking can only be carried out by friction, so the telescopic rod will still slide after locking.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a cylinder with a locking function is provided, in order to achieve a more practical purpose. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a cylinder with a locking function to solve the problem that the contact area between the existing locking mechanism and the telescopic rod of the gas cylinder is limited and can only be locked by friction, so the telescopic rod will still slide after locking.

[0007] The utility model provides a cylinder with a locking function, which is achieved by the following specific technical means:

[0008] The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts.

[0009] Furthermore, two groups of the limiting components are provided, and the two groups of the limiting components are respectively located on both sides of the cylinder body, and each group of the limiting components includes a plurality of limiting blocks, and the plurality of limiting blocks are vertically equidistantly arranged.

[0010] Furthermore, the limiting assembly and the cylinder body are arranged in an inclined state, the clamping block and the second support rod are arranged in an inclined state, and the middle part of the clamping block and the middle part of the limiting assembly are located in the same vertical plane.

[0011] Furthermore, the other end of the spring is fixed to one side of the second support rod, and the length of the spring is smaller than the length of the first support rod.

[0012] Furthermore, two rotating disks are provided, and the two rotating disks are respectively located in two identical vertical planes with two ends of the third support rod.

[0013] Furthermore, the other end of the transmission rod is rotatably connected to one end of the third support rod, and the length of the transmission rod is greater than the distance between the middle of the turntable and the third support rod.

[0014] Furthermore, cushion blocks are fixed on both sides of the cylinder body close to the air inlet pipe and the air outlet pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In the utility model, when the telescopic rod is extended, the connecting ring and multiple components move together, and the spring can always keep stretching the second support rod, so that the bottom end of the second support rod is close to the cylinder body when the second support rod is not affected by external force. When the telescopic rod stops moving, the inclined limit assembly and the block ensure that the block will not be separated from the limit assembly when the limit assembly provides support, so that locking is achieved through the support of the support rod, and the telescopic rod will not be squeezed too hard after locking, and the telescopic rod will not shrink due to pressure.

[0017] 2. In the utility model, when the lock is released, the micro motor is controlled to rotate, and the two turntables are driven to rotate at the same time. The transmission is transmitted through the transmission rod. When the turntable rotates, the transmission rod moves to push the second support rod outward, and the spring is further stretched, so that the bottom end of the second support rod is separated from the limit assembly. At this time, the telescopic rod can be controlled to retract normally. After the shortening is completed, the micro motor is controlled to reset, thereby achieving the effect of reducing costs without the need to equip a five-way single-control solenoid valve and setting a locking mechanism inside, and the contact limit is also relatively fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a partial structural schematic diagram of the utility model.

[0020] Figure 3 yes Figure 2 A-section structure enlarged schematic diagram.

[0021] Figure 4 It is a partial structural schematic diagram of the utility model.

[0022] The corresponding relationship between the component names and the figure numbers in the figure is:

[0023] 1. Cylinder body; 2. Inlet pipe; 3. Exhaust pipe; 4. Cushion block; 5. Telescopic rod; 6. Placement slot; 7. Micro motor; 8. Rotating shaft; 9. Turntable; 10. Transmission rod; 11. Connecting ring; 12. First support rod; 13. Second support rod; 14. Spring; 15. Support block; 16. Third support rod; 17. Block; 18. Limiting assembly. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, “plurality” means two or more; in addition, the terms “first”, “second”, “third”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] Example:

[0027] As attached Figure 1 To Attachment Figure 4 As shown:

[0028] The utility model provides a cylinder with a locking function, comprising a cylinder body 1, an air inlet pipe 2 and an air outlet pipe 3 are provided on one side of the cylinder body 1, a telescopic rod 5 is provided inside the cylinder body 1, both sides of the outer wall of the cylinder body 1 are fixed with a limit assembly 18, a connecting ring 11 is fixed to the top of the outer wall of the telescopic rod 5, both sides of the connecting ring 11 are fixed with a first support rod 12, the middle parts of the opposite ends of the two first support rods 12 are rotatably connected with the second support rod 13, the bottom of the second support rod 13 is fixed with a clamping block 17, and the two first support rods 12 are relatively one A support block 15 is fixed at the bottom of each end, a spring 14 is fixed in the middle of the opposite side of the two support blocks 15, a third support rod 16 is fixed through one side of the second support rod 13, a placement groove 6 is opened in the middle of the telescopic rod 5, a micro motor 7 is fixed in the middle of the placement groove 6, a rotating shaft 8 is fixed at the power output end of the micro motor 7, a turntable 9 is fixed at one end of the rotating shaft 8, and a transmission rod 10 is rotatably connected to the top and bottom of one side of the turntable 9. The locking function is mostly used for protection to prevent the cylinder from shrinking due to excessive external force after extension, thereby causing danger.

[0029] Among them, there are two groups of limit components 18, which are respectively located on both sides of the cylinder body 1, and each group of limit components 18 includes multiple limit blocks, which are arranged vertically and equidistantly. The card block 17 is supported by the set limit components 18, and multiple limit blocks are set, so that the card block 17 can touch the corresponding limit blocks at multiple heights.

[0030] Among them, the limit assembly 18 and the cylinder body 1 are arranged in an inclined shape, the block 17 and the second support rod 13 are arranged in an inclined shape, the middle part of the block 17 and the middle part of the limit assembly 18 are located in the same vertical plane, and the inclined limit assembly 18 and the block 17 ensure that the block 17 will not separate from the limit assembly 18 when the limit assembly 18 provides support.

[0031] Among them, the other end of the spring 14 is fixed to one side of the second support rod 13, and the length of the spring 14 is less than the length of the first support rod 12. The spring 14 can always maintain the tension on the second support rod 13, so that the bottom end of the second support rod 13 is close to the cylinder body 1 when the second support rod 13 is not affected by external force, so that the block 17 can always be located in the corresponding limit block.

[0032] There are two turntables 9 , which are respectively located on two identical vertical planes with two ends of the third support rod 16 . The micro motor 7 is a dual-axis motor, which drives the two turntables 9 to rotate at the same time.

[0033] Among them, the other end of the transmission rod 10 is rotatably connected to one end of the third support rod 16, and the length of the transmission rod 10 is greater than the spacing value between the middle of the turntable 9 and the third support rod 16. When the turntable 9 rotates, the transmission rod 10 moves to push the second support rod 13 outward, and the spring 14 is further stretched, so that the bottom end of the second support rod 13 is separated from the limit assembly 18.

[0034] Among them, cushion blocks 4 are fixed on both sides of the cylinder body 1 close to the air inlet pipe 2 and the air outlet pipe 3. The cylinder body 1 is padded by the cushion blocks 4 to avoid affecting the movement of the second support rod 13.

[0035] The specific usage and function of this embodiment are as follows:

[0036] In the present invention, the air inlet pipe 2 and the air outlet pipe 3 of the cylinder body 1 are first connected to the outside, and the extension and retraction of the telescopic rod 5 is controlled by the air in and out of the air inlet pipe 2 and the air outlet pipe 3. When the telescopic rod 5 is extended, the connecting ring 11 and the multiple components move together, and the spring 14 can always keep the second support rod 13 stretched, so that the bottom end of the second support rod 13 is close to the cylinder body 1 when the second support rod 13 is not affected by external force. A plurality of limit assemblies 18 are provided, so that the block 17 at multiple heights can touch the corresponding limit assemblies 18. When the telescopic rod 5 stops moving, the inclined limit assemblies 18 and the block 17 make the limit assemblies When 18 provides support, the block 17 will not separate from the limit assembly 18, achieving a self-locking effect, preventing the telescopic rod 5 from contracting when pressed down by an external force. The locking function is mostly used for protection to prevent the cylinder from contracting due to excessive external force after extension, thereby causing danger. When the lock needs to be released, the micro motor 7 is controlled to rotate, and at the same time, the two turntables 9 are driven to rotate, and the transmission is transmitted through the transmission rod 10. When the turntable 9 rotates, the transmission rod 10 moves to lift the second support rod 13 outward, and the spring 14 is further stretched, so that the bottom end of the second support rod 13 is separated from the limit assembly 18. At this time, the telescopic rod 5 can be controlled to contract normally. After the shortening is completed, the micro motor 7 can be controlled to reset.

[0037] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A cylinder with a locking function, comprising a cylinder body (1), an air inlet pipe (2) and an air outlet pipe (3) penetrating one side of the cylinder body (1), a telescopic rod (5) being arranged inside the cylinder body (1), characterized in that: The cylinder body (1) is fixed with a limit assembly (18) on both sides of the outer wall, the telescopic rod (5) is fixed with a connecting ring (11) on the top of the outer wall, the connecting ring (11) is fixed with a first support rod (12) on both sides, the middle parts of the two opposite ends of the first support rods (12) are rotatably connected with a second support rod (13), the bottom of the second support rod (13) is fixed with a clamping block (17), the bottom of the opposite end of the two first support rods (12) is fixed with a support block (15), and the two A spring (14) is fixed in the middle of the opposite side of the support block (15); a third support rod (16) is fixed through one side of the second support rod (13); a placement groove (6) is opened in the middle of the telescopic rod (5); a micro motor (7) is fixed in the middle of the placement groove (6); a rotating shaft (8) is fixed at the power output end of the micro motor (7); a rotating disk (9) is fixed at one end of the rotating shaft (8); and a transmission rod (10) is rotatably connected to the top and bottom of one side of the rotating disk (9).

2. A cylinder with locking function as claimed in claim 1, characterized in that: The limit assemblies (18) are provided in two groups, and the two groups of limit assemblies (18) are respectively located on two sides of the cylinder body (1), and each group of limit assemblies (18) includes a plurality of limit blocks, and the plurality of limit blocks are arranged vertically and equidistantly.

3. A cylinder with locking function as claimed in claim 1, characterized in that: The limiting assembly (18) and the cylinder body (1) are arranged in an inclined shape, the clamping block (17) and the second support rod (13) are arranged in an inclined shape, and the middle part of the clamping block (17) and the middle part of the limiting assembly (18) are located in the same vertical plane.

4. A cylinder with locking function as claimed in claim 1, characterized in that: The other end of the spring (14) is fixed to one side of the second support rod (13), and the length of the spring (14) is smaller than the length of the first support rod (12).

5. A cylinder with locking function as claimed in claim 1, characterized in that: Two rotating disks (9) are provided, and the two rotating disks (9) are respectively located on two identical vertical planes with two ends of the third support rod (16).

6. A cylinder with locking function as claimed in claim 5, characterized in that: The other end of the transmission rod (10) is rotatably connected to one end of the third support rod (16), and the length of the transmission rod (10) is greater than the distance between the middle of the turntable (9) and the third support rod (16).

7. A cylinder with locking function as claimed in claim 1, characterized in that: Pads (4) are fixed on both sides of the cylinder body (1) close to the air inlet pipe (2) and the air outlet pipe (3).

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