Air cylinder with good protection effect

Abstract

The utility model discloses an air cylinder with a good protection effect, which relates to the technical field of air cylinders and comprises an air cylinder body, a first connecting cover and a connecting seat, a telescopic rod is arranged at the right end of the air cylinder body, clamping holes are symmetrically formed in the inner side of the left end of the first connecting cover, and the right end of the air cylinder body is clamped with the clamping holes through a second fixing mechanism. A corrugated folding pipe is fixedly connected to the right end of the first connecting cover, a second connecting cover is fixedly installed at the right end of the corrugated folding pipe, and a sealing ring is arranged on the inner side of the right end of the second connecting cover. By the adoption of the structure, the second connecting cover at the other end of the corrugated folding pipe is moved to the installation position corresponding to the end of the telescopic rod, and then the connecting arc plate on the second connecting cover can be matched with a screw to be fixed to the telescopic rod, so that the telescopic rod can drive the corrugated folding pipe to stretch and retract in the stretching and retracting process; therefore, the problems that the telescopic rod is collided by the machined part and the air tightness is affected can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cylinders, and particularly relates to a cylinder with good protection effect. Background Art

[0002] In daily applications, people often use cylinders as important power transmission devices to achieve power transmission of related products. Cylinder products mainly include a cylinder body with an internal installation space, a piston assembly installed and connected to the cylinder body, and related connection components. In order to meet specific transmission needs, cylinder products with retractable strokes have been born on the market.

[0003] A Chinese patent with announcement number CN209818432U discloses a mounting structure of a cylinder, which includes a cylinder body assembly with a telescopic rod and a mounting tray, wherein the mounting tray is sleeved on the outer periphery of the cylinder body assembly and locked by a locking bolt; a threaded section is provided on the outer periphery of the telescopic rod, and a first adjusting bolt and a second adjusting bolt that are locked with each other are sleeved on the threaded section for fine-tuning the telescopic stroke of the telescopic rod.

[0004] However, in the actual use of the traditional cylinder in the prior art, we found that there are still many shortcomings. For example, the traditional installation structure of the cylinder is mainly connected by bolts, and tools such as wrenches are required for each disassembly and assembly, which is time-consuming and labor-intensive. Secondly, the telescopic rod of the cylinder lacks a protective structure. During use, the telescopic rod is easily scratched, affecting the air tightness. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a cylinder with good protection effect to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A cylinder with good protection effect, comprising a cylinder body, a first connecting cover and a connecting seat, the right end of the cylinder body is provided with a telescopic rod, the inner side of the left end of the first connecting cover is symmetrically provided with a clamping hole, the right end of the cylinder body is clamped with the clamping hole through a second fixing mechanism, the right end of the first connecting cover is fixedly connected with a corrugated folding tube, the right end of the corrugated folding tube is fixedly installed with a second connecting cover, the inner side of the right end of the second connecting cover is provided with a sealing ring, the right end of the second connecting cover is symmetrically fixedly connected with a connecting arc plate, the connecting arc plate is fixedly installed by screws and a telescopic rod, the lower end of the cylinder body is fixedly connected with a connecting block, the front side of the connecting seat is provided with a positioning groove, the connecting block is plugged into the inner side of the positioning groove, the lower end of the connecting block is provided with a clamping groove, and the connecting seat is clamped with the clamping groove through the first fixing mechanism;

[0008] The second fixing mechanism includes a fixing seat, which is fixedly installed on the right end of the cylinder body, one end of the telescopic rod passes through the fixing seat, the left end of the first connecting cover is plugged into the fixing seat, an assembly cavity is symmetrically opened on the inner side of the fixing seat, a movable plate is slidably connected to the inner side of the assembly cavity, a second spring is symmetrically fixedly installed between the movable plate and the assembly cavity, a second clamping block is symmetrically fixedly connected to the side of the movable plate away from the second spring, the clamping end of the second clamping block passes through the wall of the assembly cavity and is clamped in the clamping hole, the same U-shaped rod is provided on the inner side of the adjacent clamping holes of the first connecting cover, and the first connection at one end of the corrugated folding tube can be conveniently connected to the cylinder body through the second fixing mechanism;

[0009] The first fixing mechanism includes an installation groove, which is arranged on the front side of the connecting seat, a guide rod is symmetrically fixedly installed on the inner side of the installation groove, the outer side of the guide rod is slidably connected with the same convex block, the upper end of the convex block is fixedly connected with a first clamping block, the clamping end of the first clamping block extends into the inner side of the positioning groove and is clamped with the clamping groove of the connecting block, and a first spring is sleeved on the outer side of the guide rod. Through the first fixing mechanism, the cylinder body can be conveniently disassembled and assembled for use.

[0010] As a preferred technical solution, a first sliding groove is symmetrically opened on the inner side of the installation groove, and the left and right ends of the convex block are slidably connected to the inner side of the first sliding groove. Through the first sliding groove, the convex block can slide stably in the installation groove.

[0011] As a preferred technical solution, the snap-in end of the first card block is inclined toward one side of the positioning groove, and the convex part of the convex block extends out of the installation groove. By setting the snap-in end of the first card block as an inclined surface toward one side of the positioning groove, the card block can be easily snapped into the card groove of the connecting block.

[0012] As a preferred technical solution, countersunk holes are symmetrically provided on the inner side of the positioning groove, and there are four countersunk holes in total. The connecting seat can be easily installed through the countersunk holes.

[0013] As a preferred technical solution, a second slide groove is symmetrically opened on the inner side of the assembly cavity, and the end of the movable plate is slidably connected to the inner side of the second slide groove. Through the second slide groove, the movable plate can slide conveniently in the assembly cavity.

[0014] As a preferred technical solution, the ends of the U-shaped rod are symmetrically provided with limiting grooves, and the ends of the U-shaped rod are slidably connected to the inner side of the clamping hole through the limiting grooves. The limiting grooves can facilitate the end of the U-shaped rod to be limited at the clamping hole.

[0015] As a preferred technical solution, a screw groove is opened on the outer side of the telescopic rod, and the connecting arc plate is fixedly installed by screws and the screw groove. The screw groove can facilitate the connection between the connecting arc plate on the second connecting cover and the telescopic rod.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] First, the first connecting cover at the left end of the corrugated folding tube is directly inserted into the fixing seat after passing through the telescopic tube, and at the same time, the first connecting cover squeezes the inclined surface of the second clamping block on the fixing seat, so that the movable plate connected to the second clamping block compresses the second spring in the assembly cavity. When the first connecting cover is inserted, and the second clamping block corresponds to the clamping hole position on the first connecting cover, the second spring resets and can push the second clamping block connected to the movable plate to be clamped into the clamping hole and fixed. Then, the second connecting cover at the other end of the corrugated folding tube is moved to the installation position corresponding to the end of the telescopic rod, and then the connecting arc plate on the second connecting cover can be used to cooperate with the screws to fix the telescopic rod, so that the telescopic rod can drive the corrugated folding tube to extend and retract during the telescopic process, thereby effectively avoiding the problem of the telescopic rod being hit by the processed parts and affecting the air tightness;

[0018] Second, insert the connecting block at the lower end of the cylinder body into the positioning groove of the connecting seat. During the insertion process, the insertion end of the connecting block and the inclined surface of the first clamping block are squeezed, so that the convex block connected to the first clamping block slides on the guide rod of the mounting groove and compresses the first spring. When the position of the first clamping block corresponds to the position of the clamping groove at the lower end of the connecting block, the first spring resets and pushes the first clamping block connected to the convex block into the clamping groove to fix it. When disassembling, the convex part of the convex block is pressed to make the convex block slide and drive the first clamping block to separate from the clamping groove, and then the connecting block at the lower end of the cylinder body can be pushed out from the direction of the positioning groove, so that the cylinder body can be easily disassembled and maintained without the help of any tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 It is a schematic diagram of the card slot structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the clamping hole structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the internal structure of the assembly cavity of the utility model.

[0024] Figure numerals: 1. cylinder body; 2. connecting block; 3. connecting seat; 4. first fixing mechanism; 401. mounting groove; 402. convex block; 403. first clamping block; 404. guide rod; 405. first spring; 5. telescopic rod; 6. first connecting cover; 7. corrugated folding tube; 8. second connecting cover; 9. positioning groove; 10. first slide groove; 11. second fixing mechanism; 111. fixing seat; 112. second spring; 113. second clamping block; 114. assembly cavity; 115. movable plate; 12. connecting arc plate; 13. sealing ring; 14. U-shaped rod; 15. clamping groove; 16. screw groove; 17. clamping hole; 18. limiting groove; 19. second slide groove; 20. countersunk hole. DETAILED DESCRIPTION

[0025] refer to Figures 1 to 5 The cylinder with good protection effect described in this embodiment includes a cylinder body 1, a first connecting cover 6 and a connecting seat 3. The right end of the cylinder body 1 is provided with a telescopic rod 5, and the inner side of the left end of the first connecting cover 6 is symmetrically provided with a clamping hole 17. The right end of the cylinder body 1 is clamped with the clamping hole 17 through a second fixing mechanism 11. The right end of the first connecting cover 6 is fixedly connected with a corrugated folding tube 7, and the right end of the corrugated folding tube 7 is fixedly installed with a second connecting cover 8. A sealing ring 13 is provided on the inner side of the right end of the second connecting cover 8. The right end of the second connecting cover 8 is symmetrically fixedly connected with a connecting arc plate 12, and the connecting arc plate 12 is fixedly installed by screws and the telescopic rod 5. The lower end of the cylinder body 1 is fixedly connected to A connecting block 2 is connected, a positioning groove 9 is provided on the front of the connecting seat 3, the connecting block 2 is inserted into the inner side of the positioning groove 9, a card slot 15 is provided at the lower end of the connecting block 2, and the connecting seat 3 is carded with the card slot 15 through the first fixing mechanism 4; the corrugated folding tube 7 has folds, one end of the corrugated folding tube 7 is connected to the cylinder body 1 through the first connecting cover 6, and the second connecting cover 8 at the other end is connected to the telescopic rod 5, which can be extended and extended with the telescopic rod 5 and protect it. The corrugated folding tube 7 is a prior art product, one end of the telescopic rod 5 is connected to the piston inside the cylinder body 1, and the cylinder body 1 is also a prior art product, and its related structure has been well known to the general public, so it will not be described in detail here;

[0026] The second fixing mechanism 11 includes a fixing seat 111, which is fixedly installed at the right end of the cylinder body 1, one end of the telescopic rod 5 passes through the fixing seat 111, the left end of the first connecting cover 6 is plugged into the fixing seat 111, an assembly cavity 114 is symmetrically opened on the inner side of the fixing seat 111, a movable plate 115 is slidably connected to the inner side of the assembly cavity 114, a second spring 112 is symmetrically fixedly installed between the movable plate 115 and the assembly cavity 114, and the movable plate 115 is symmetrically fixed on the side away from the second spring 112. The second clamping block 113 is fixedly connected, and the clamping end of the second clamping block 113 penetrates the cavity wall of the assembly cavity 114 and is clamped with the clamping hole 17. The inner side of the adjacent clamping hole 17 of the first connecting cover 6 is provided with the same U-shaped rod 14. When the corrugated folding tube 7 is installed, the first connecting cover 6 at the left end of the corrugated folding tube 7 penetrates the telescopic tube and is directly inserted into the fixing seat 111. At the same time, the first connecting cover 6 squeezes the inclined surface of the second clamping block 113 on the fixing seat 111, so that the movable plate 115 connected to the second clamping block 113 is aligned with the assembly cavity 114. The second spring 112 in the body is compressed. When the first connecting cover 6 is inserted, and the second clamping block 113 corresponds to the clamping hole 17 on the first connecting cover 6, the second spring 112 is reset to push the second clamping block 113 connected to the movable plate 115 to be clamped in the clamping hole 17 and fixed. Then, the second connecting cover 8 at the other end of the corrugated folding tube 7 is moved to the installation position corresponding to the end of the telescopic rod 5, and then the connecting arc plate 12 on the second connecting cover 8 can be used to cooperate with the screws to fix the telescopic rod 5, so that the telescopic rod 5 can drive the corrugated folding tube 7 to extend and retract during the telescopic process, thereby effectively avoiding the telescopic rod 5 from being bumped by processed parts and affecting the air tightness. When disassembling, the two U-shaped rods 14 on the first connecting cover 6 can be squeezed at the same time to push the clamping end of the second clamping block 113 out of the clamping hole 17, and then the first connecting cover 6 is pulled out, and then the screws on the connecting arc plate 12 at the second connecting cover 8 are removed, so that the corrugated folding tube 7 can be conveniently disassembled and used;

[0027] The first fixing mechanism 4 includes a mounting groove 401, which is provided on the front side of the connecting seat 3. A guide rod 404 is symmetrically fixedly installed on the inner side of the mounting groove 401. The outer side of the guide rod 404 is slidably connected with the same convex block 402. The upper end of the convex block 402 is fixedly connected with a first clamping block 403. The clamping end of the first clamping block 403 extends into the inner side of the positioning groove 9 and is clamped with the clamping groove 15 of the connecting block 2. The outer side of the guide rod 404 is sleeved with a first spring 405. When the cylinder body 1 is installed, the connecting block 2 at the lower end of the cylinder body 1 is inserted into the positioning groove 9 of the connecting seat 3. During the insertion process, the insertion end of the connecting block 2 and the inclined surface of the first clamping block 403 are squeezed, so that the first The convex block 402 connected to a clamping block 403 slides on the guide rod 404 of the mounting groove 401 and compresses the first spring 405. When the position of the first clamping block 403 corresponds to the position of the clamping groove 15 at the lower end of the connecting block 2, the first spring 405 resets and pushes the first clamping block 403 connected to the convex block 402 to be clamped into the clamping groove 15 to fix it. When disassembling, the convex part of the convex block 402 is pressed to make the convex block 402 slide and drive the first clamping block 403 to separate from the clamping groove 15, and then the connecting block 2 at the lower end of the cylinder body 1 can be pushed out from the notch direction of the positioning groove 9, so that the cylinder body 1 can be easily disassembled and maintained without the aid of any tools.

[0028] refer to Figure 2 A first slide groove 10 is symmetrically opened on the inner side of the installation groove 401, and the left and right ends of the convex block 402 are slidably connected to the inner side of the first slide groove 10. By sliding the convex block 402 at the first slide groove 10 of the installation groove 401, the stability of the convex plate can be improved.

[0029] refer to Figure 2 The snap-in end of the first clamping block 403 is inclined toward one side of the notch of the positioning groove 9, and the convex part of the convex block 402 extends out of the installation groove 401. The inclined structure of the snap-in end of the first clamping block 403 can facilitate the first clamping block 403 to be snapped and fixed to the bottom clamping groove 15 of the inserted connecting block 2 in the positioning groove 9.

[0030] refer to Figure 2 The inner side of the positioning groove 9 is symmetrically provided with countersunk holes 20, and there are four countersunk holes 20 in total. The countersunk holes 20 on the inner side of the positioning groove 9 can be used to facilitate the installation and fixation of the connecting seat 3.

[0031] refer to Figure 5 A second slide groove 19 is symmetrically opened on the inner side of the assembly cavity 114, and the end of the movable plate 115 is slidably connected to the inner side of the second slide groove 19. The second slide groove 19 on the inner side of the assembly cavity 114 can facilitate the stable sliding of the movable plate 115 on the inner side of the assembly cavity 114.

[0032] refer to Figure 4The ends of the U-shaped rod 14 are symmetrically provided with limiting grooves 18, and the ends of the U-shaped rod 14 are slidably connected to the inner side of the clamping hole 17 through the limiting grooves 18. The limiting grooves 18 at the ends of the U-shaped rod 14 can be used to conveniently limit the ends of the U-shaped rod 14 to prevent them from falling out of the clamping hole 17.

[0033] refer to Figure 4 A screw groove 16 is provided on the outer side of the telescopic rod 5, and the arc plate 12 is fixedly installed by screws and the screw groove 16. The screw groove 16 on the outer side of the telescopic rod 5 can be used to conveniently connect and fix the arc plate 12 to the outer surface of the telescopic rod 5.

[0034] Principle and advantages of use: When installing the corrugated folding tube 7, the first connecting cover 6 at the left end of the corrugated folding tube 7 is directly inserted into the fixing seat 111 after passing through the telescopic tube. At the same time, the first connecting cover 6 squeezes the inclined surface of the second clamping block 113 on the fixing seat 111, so that the movable plate 115 connected to the second clamping block 113 compresses the second spring 112 in the assembly cavity 114. When the first connecting cover 6 is inserted, and the second clamping block 113 corresponds to the clamping hole 17 on the first connecting cover 6, the second spring 112 is reset to push the second clamping block 113 connected to the movable plate 115 to clamp into the clamping hole 17 and fix it. , then move the second connecting cover 8 at the other end of the corrugated folding tube 7 to the installation position corresponding to the end of the telescopic rod 5, and then use the connecting arc plate 12 on the second connecting cover 8 to cooperate with the screws to fix the telescopic rod 5, so that the telescopic rod 5 can drive the corrugated folding tube 7 to extend and retract during the telescopic process, and protect the telescopic rod 5. When disassembling, the two U-shaped rods 14 on the first connecting cover 6 can be squeezed at the same time to push the clamping end of the second clamping block 113 out of the clamping hole 17, and then pull out the first connecting cover 6, and then remove the screws on the connecting arc plate 12 at the second connecting cover 8;

[0035] When installing the cylinder body 1, the connecting block 2 at the lower end of the cylinder body 1 is inserted into the positioning groove 9 of the connecting seat 3. During the insertion process, the insertion end of the connecting block 2 and the inclined surface of the first clamping block 403 are squeezed, so that the convex block 402 connected to the first clamping block 403 slides on the guide rod 404 of the installation groove 401 and compresses the first spring 405. When the position of the first clamping block 403 corresponds to the position of the clamping groove 15 at the lower end of the connecting block 2, the first spring 405 resets and pushes the first clamping block 403 connected to the convex block 402 to be clamped into the clamping groove 15 to fix it. When disassembling, the convex part of the convex block 402 is pressed, so that the convex block 402 can slide and drive the first clamping block 403 to separate from the clamping groove 15, and then the connecting block 2 at the lower end of the cylinder body 1 can be pushed out from the notch direction of the positioning groove 9.

Claims

1. A cylinder with good protection effect, comprising a cylinder body, a first connecting cover and a connecting seat, characterized in that: The right end of the cylinder body is provided with a telescopic rod, the inner side of the left end of the first connecting cover is symmetrically provided with a clamping hole, the right end of the cylinder body is clamped with the clamping hole through the second fixing mechanism, the right end of the first connecting cover is fixedly connected with a corrugated folding tube, the right end of the corrugated folding tube is fixedly installed with a second connecting cover, the inner side of the right end of the second connecting cover is provided with a sealing ring, the right end of the second connecting cover is symmetrically fixedly connected with a connecting arc plate, the connecting arc plate is fixedly installed by screws and the telescopic rod, the lower end of the cylinder body is fixedly connected with a connecting block, the front side of the connecting seat is provided with a positioning groove, the connecting block is plugged into the inner side of the positioning groove, the lower end of the connecting block is provided with a clamping groove, and the connecting seat is clamped with the clamping groove through the first fixing mechanism; The second fixing mechanism comprises a fixing seat, the fixing seat is fixedly installed at the right end of the cylinder body, one end of the telescopic rod passes through the fixing seat, the left end of the first connecting cover is plugged with the fixing seat, an assembly cavity is symmetrically opened on the inner side of the fixing seat, a movable plate is slidably connected to the inner side of the assembly cavity, a second spring is symmetrically fixedly installed between the movable plate and the assembly cavity, a second clamping block is symmetrically fixedly connected to the side of the movable plate away from the second spring, the clamping end of the second clamping block passes through the wall of the assembly cavity and is clamped with the clamping hole, and the same U-shaped rod is provided on the inner side of the adjacent clamping holes of the first connecting cover; The first fixing mechanism includes an installation groove, which is opened on the front side of the connecting seat, a guide rod is symmetrically fixedly installed on the inner side of the installation groove, the outer side of the guide rod is slidably connected with the same convex block, the upper end of the convex block is fixedly connected with a first clamping block, the clamping end of the first clamping block extends into the inner side of the positioning groove and is clamped in the clamping groove of the connecting block, and a first spring is sleeved on the outer side of the guide rod.

2. A cylinder with good protection effect according to claim 1, characterized in that: A first sliding groove is symmetrically provided on the inner side of the installation groove, and the left and right ends of the convex block are slidably connected to the inner side of the first sliding groove.

3. A cylinder with good protection effect according to claim 1, characterized in that: The clamping end of the first clamping block is inclined toward one side of the notch of the positioning slot, and the convex portion of the convex block extends out of the mounting slot.

4. A cylinder with good protection effect according to claim 1, characterized in that: The inner side of the positioning groove is symmetrically provided with countersunk holes, and there are four countersunk holes in total.

5. A cylinder with good protection effect according to claim 1, characterized in that: A second sliding groove is symmetrically provided on the inner side of the assembly cavity, and the end of the movable plate is slidably connected to the inner side of the second sliding groove.

6. A cylinder with good protection effect according to claim 1, characterized in that: The ends of the U-shaped rods are symmetrically provided with limiting grooves, and the ends of the U-shaped rods are slidably connected to the inner side of the clamping hole through the limiting grooves.

7. A cylinder with good protection effect according to claim 1, characterized in that: The outer side of the telescopic rod is provided with a screw groove, and the connecting arc plate is fixedly installed by means of screws and the screw groove.

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