Dustproof air cylinder

Abstract

The dustproof air cylinder comprises an air cylinder body, a piston rod is arranged in the air cylinder body, the end of the piston rod extends to the upper end of the air cylinder body, the upper end of the air cylinder body is sleeved with a dustproof sleeve shell, the dustproof sleeve shell comprises a bottom shell part, a folding part and a top sleeve part, and a ring is fixedly arranged at the upper end of the bottom shell part. The outer side of the ring is fixedly connected with the bottom end of the folding part, the upper end of the folding part is fixedly connected with the top sleeve part, the folding part is arranged on the outer side of the end in a sleeving mode, the top sleeve part and the bottom shell part are fixedly connected with the corresponding end and the air cylinder body through a plurality of lock catch structures, and air bags are arranged on the two sides of the bottom shell part. The air bag is communicated with the folding part through an air pipe; the dustproof cover can effectively prevent dust and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders, and more specifically to a dustproof cylinder. Background Art

[0002] The cylinder is a cylindrical metal part that guides the piston to perform linear reciprocating motion in the cylinder. When the piston rod of the cylinder slides up and down, it is easy to bring the dust adsorbed on the piston rod into the inner side of the cylinder, thereby accelerating the wear of the cylinder and reducing the service life of the cylinder.

[0003] The Chinese utility model disclosed in the prior art with the publication number CN211501154U is a dust-proof cylinder. By setting a driving block and a cleaning component, when the cylinder is extended, the cylinder shaft drives the driving block to move, and the driving block squeezes the cleaning component to open the cleaning component, so that the cylinder shaft can be smoothly extended. When the cylinder shaft contracts, the driving block leaves the cleaning component, and the cleaning components merge to remove the dust attached to the cylinder shaft and prevent the dust from entering the cylinder. However, this method of removing dust requires the staff to repeatedly clean the dust scraped off by the cleaning block, which is very inconvenient. Otherwise, when the dust accumulates, it will still affect the movement of the piston rod and easily cause wear of the side wall of the piston rod. After wear, there will be a gap between the piston rod and the cylinder, which makes it easy for dust to enter, resulting in cylinder failure. Therefore, the present application proposes a dust-proof cylinder. Utility Model Content

[0004] The utility model aims to provide a dustproof cylinder which can effectively prevent dust and is easy to use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A dustproof cylinder comprises a cylinder body, wherein a piston rod is arranged in the cylinder body, the end of the piston rod extends to the upper end of the cylinder body, the upper end of the cylinder body is covered with a dustproof shell, the dustproof shell comprises a bottom shell part, a folding part and a top shell part, a ring is fixedly arranged on the upper end of the bottom shell part, the outer side of the ring is fixedly connected to the bottom end of the folding part, the upper end of the folding part is fixedly connected to the top shell part, the folding part is sleeved on the outer side of the end, the top shell part and the bottom shell part are fixedly connected to the corresponding end and the cylinder body through a plurality of locking structures, air bags are arranged on both sides of the bottom shell part, and the air bags are communicated with the folding part through an air pipe.

[0007] By adopting the above technical solution, the utility model has the following advantages:

[0008] The folding portion of the utility model is arranged so that when the piston rod moves up and down, the piston rod cannot come into contact with the dusty air outside, thereby playing a dust-proof role. The shell effectively prevents the piston rod from bringing dust into the cylinder body, reduces the wear of the cylinder body by dust, effectively prolongs the service life of the cylinder, and does not require manual care, which is easy to use. The locking structure of the utility model is arranged so that the dustproof sleeve shell can be replaced separately. When it is damaged, there is no need to replace the entire cylinder, which effectively reduces the maintenance cost.

[0009] Furthermore, the airbag includes a bottom ring, one side of the bottom ring is fixedly connected to the corresponding bottom shell part, and the other side of the bottom ring is fixedly provided with a folded bag part, and clean gas is arranged in the folded bag part.

[0010] By adopting the above technical solution, the utility model has the following advantages:

[0011] The arrangement of the folding bag portion of the utility model enables the clean gas in the folding bag portion to cooperate with the change of the pressure in the folding portion to realize the expansion and closure of the folding portion when the folding portion is expanded and closed along with the piston rod.

[0012] Furthermore, the upper end of the bottom ring and the side of the ring ring close to the bottom ring are both embedded and fixed with a one-way air inlet and a one-way air outlet. The one-way air inlet at the upper end of the bottom ring and the one-way air outlet at the upper end of the ring ring are fixedly connected via the air pipe, and the one-way air outlet at the upper end of the bottom ring and the one-way air inlet at the upper end of the ring ring are fixedly connected via the air pipe.

[0013] By adopting the above technical solution, the utility model has the following advantages:

[0014] The one-way air inlet, the one-way air outlet and the air pipe of the utility model can realize the connection between the folding part and the folding bag part.

[0015] Furthermore, the locking structure includes a movable plate, a handle portion, a card block, a high-elastic spring and an extrusion plate, the top sleeve portion and the bottom shell portion are both provided with a through groove, the lower end of the through groove is communicated with a spring groove, the high-elastic spring is fixedly arranged in the spring groove, the upper end of the high-elastic spring is fixedly provided with an extrusion plate, a handle portion is fixedly provided on one side of the movable plate, the handle portion and the movable plate are located at the upper end of the extrusion plate, the end head and the cylinder body are communicated with an inner groove at the position corresponding to the through groove, the inner groove and one side of the upper end of the through groove are both communicated with a card slot 1, the upper end of the movable plate is carded in the card slot 1, the upper end of the movable plate away from the handle portion is fixed with the card block, the upper end of the card slot 1 is communicated with a card slot 2 corresponding to the position of the card block, and the card block is carded in the corresponding card slot 2.

[0016] By adopting the above technical solution, the utility model has the following advantages:

[0017] The high-elastic spring, the clamping block, the handle part and the movable plate of the utility model are arranged so that when the dust cover shell is fixed, the elastic force of the high-elastic spring can drive the extrusion plate to squeeze the movable plate and the handle part, so that the movable plate and the clamping block are respectively clamped in the first clamping groove and the second clamping groove to realize the fixation of the dust cover shell to the cylinder body and the end head; when it needs to be removed, it is only necessary to press the handle part downward to drive the movable plate and the clamping block to move downward to squeeze the high-elastic spring, and then pull the handle part outward to make the clamping block and the movable plate leave the inner groove, the first clamping groove and the second clamping groove, so that the dust cover shell can be separated from the cylinder body and the end head, so that the dust cover shell can be replaced separately, and the maintenance cost is effectively reduced.

[0018] Furthermore, moving blocks are fixedly provided at both ends of the clamping block, and L-shaped sliding grooves are provided on both sides of the clamping slot 2, the clamping slot 1, the inner slot and the through slot, and the moving blocks are clamped in the corresponding L-shaped sliding grooves.

[0019] By adopting the above technical solution, the utility model has the following advantages:

[0020] The arrangement of the L-shaped sliding groove and the moving block of the utility model plays a role in limiting the movement of the clamping block, thereby preventing the clamping block from being pulled out of the through groove when the handle is pulled outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model when the cylinder is not started;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model in the startup state of the cylinder;

[0024] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0025] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 5 It is a schematic diagram of the structure of the movable plate, handle, clamping block and movable block of the utility model.

[0027] Figure numerals: 1, cylinder body; 2, piston rod; 201, end; 3, clamping block; 301, moving block; 4, folding part; 5, folding bag part; 6, bottom shell part; 7, handle part; 8, moving plate; 9, through groove; 10, spring groove; 11, high elastic spring; 12, extrusion plate; 13, clamping groove one; 14, clamping groove two; 15, L-shaped slide groove; 16, inner groove; 17, top sleeve part; 18, one-way air inlet; 19, ring; 20, air pipe; 21, one-way air outlet; 22, bottom ring. DETAILED DESCRIPTION

[0028] like Figures 1 to 3 As shown, in the specific embodiment, a dustproof cylinder includes a cylinder body 1, a piston rod 2 is arranged in the cylinder body 1, the end 201 of the piston rod 2 extends to the upper end of the cylinder body 1, and a dustproof shell is arranged on the outer sleeve of the upper end of the cylinder body 1, the dustproof shell includes a bottom shell part 6, a folding part 4 and a top sleeve part 17, a ring 19 is fixedly provided on the upper end of the bottom shell part 6, the outer side of the ring 19 is fixedly connected to the bottom end of the folding part 4, the upper end of the folding part 4 is fixedly connected to the top sleeve part 17, the folding part 4 is sleeved on the outer side of the end 201, the top sleeve part 17 and the bottom shell part 6 are fixedly connected to the corresponding end 201 and the cylinder body 1 through a plurality of locking structures, and airbags are provided on both sides of the bottom shell part 6, and the airbags are communicated with the folding part 4 through the air pipe 20.

[0029] Through the above settings, the setting of the folding part 4 of the utility model makes it possible for the piston rod 2 to be unable to contact with the dusty air outside when the piston rod 2 moves up and down, thereby playing a dust-proof role. The shell effectively prevents the piston rod 2 from bringing dust into the cylinder body 1, reduces the wear of the cylinder body 1 by dust, effectively extends the service life of the cylinder, and does not require manual care, which is easy to use; the setting of the locking structure of the utility model makes it possible for the dustproof sleeve to be replaced separately, and when it is damaged, there is no need to replace the entire cylinder, which effectively reduces the maintenance cost.

[0030] like Figure 3 As shown, the airbag includes a bottom ring 22, one side of the bottom ring 22 is fixedly connected to the corresponding bottom shell part 6, and the other side of the bottom ring 22 is fixedly provided with a folded bag part 5, and the folded bag part 5 is provided with clean gas; the upper end of the bottom ring 22 and the side of the ring 19 close to the bottom ring 22 are both embedded and fixedly provided with a one-way air inlet 18 and a one-way air outlet 21, the one-way air inlet 18 at the upper end of the bottom ring 22 and the one-way air outlet 21 at the upper end of the ring 19 are communicated and fixedly connected through an air pipe 20, and the one-way air outlet 21 at the upper end of the bottom ring 22 and the one-way air inlet 18 at the upper end of the ring 19 are communicated and fixedly connected through the air pipe 20.

[0031] Through the above settings, the setting of the folding bag portion 5 of the utility model enables the clean gas in the folding bag portion 5 to cooperate with the change in pressure in the folding portion 4 to realize the expansion and closing of the folding portion 4 when the folding portion 4 is expanded and closed along with the piston rod 2; the setting of the one-way air inlet 18, the one-way air outlet 21 and the air pipe 20 of the utility model can realize the connection between the folding portion 4 and the folding bag portion 5.

[0032] like Figures 4 to 5 As shown, the lock structure includes a moving plate 8, a handle portion 7, a block 3, a high-elastic spring 11 and an extrusion plate 12. A through groove 9 is provided on the top sleeve portion 17 and the bottom shell portion 6. A spring groove 10 is provided at the lower end of the through groove 9. A high-elastic spring 11 is fixedly provided in the spring groove 10. An extrusion plate 12 is fixedly provided at the upper end of the high-elastic spring 11. A handle portion 7 is fixedly provided on one side of the moving plate 8. The handle portion 7 and the moving plate 8 are located at the upper end of the extrusion plate 12. The end head 201 and the cylinder body 1 are provided with an inner groove 16 at the position corresponding to the through groove 9. The inner groove 16 is provided at the upper end of the cylinder body 1. 6 and one side of the upper end of the through slot 9 are both communicated with a slot 13, the upper end of the movable plate 8 is clamped in the slot 13, and a clamping block 3 is fixedly provided on the upper end of the movable plate 8 away from the handle portion 7, and a slot 2 14 is communicated with the position of the clamping block 3 at the upper end of the slot 13, and the clamping block 3 is clamped in the corresponding slot 2 14; moving blocks 301 are fixedly provided at both ends of the clamping block 3, and L-shaped sliding grooves 15 are provided on both sides of the slot 2 14, the slot 1 13, the inner groove 16 and the through slot 9, and the moving block 301 is clamped in the corresponding L-shaped sliding groove 15.

[0033] The utility model has the following advantages: first, the handle 7 is pressed downwardly, and the movable plate 8 and the clamping block 3 are respectively pressed in the first clamping groove 13 and the second clamping groove 14 to realize the fixing of the dust cover shell with the cylinder body 1 and the end head 201. When it is needed to be removed, it is only necessary to press the handle 7 downwardly to drive the movable plate 8 and the clamping block 3 to move downwardly and squeeze the high elastic spring 11, and then pull the handle 7 outwardly to make the clamping block 3 and the movable plate 8 leave the inner groove 16, the first clamping groove 13 and the second clamping groove 14, so that the dust cover shell can be separated from the cylinder body 1 and the end head 201, and the dust cover shell can be replaced separately, which effectively reduces the maintenance cost; the utility model has the following advantages: the utility model has the following advantages:

[0034] Working principle: When the cylinder is started, the piston rod 2 will drive the end 201 to move up and down. When the end 201 moves up, the air pressure in the folded part 4 will increase, so that the clean gas in the folded bag 5 enters the air pipe 20 through the one-way air outlet 21 and then enters the folded part 4 from the one-way air inlet 18. At this time, the folded bag 5 is squeezed and flattened. When the piston rod 2 retracts, the folded part 4 is folded, the air pressure is reduced, and the clean gas will enter the air pipe 20 through the one-way air outlet 21 and then return to the folded bag 5 from the one-way air inlet 18. Due to the protection of the folded part 4, the air dust on the outside cannot directly contact the piston rod 2. Therefore, when the piston rod 2 moves in and out repeatedly, it will not bring dust into the cylinder body 1, and will not cause The wear of the cylinder is reduced, thereby effectively extending the service life of the cylinder, and no maintenance is required, and it is more convenient to use. When the folding part 4 or the folding bag part 5 is damaged, there is no need to replace the entire cylinder. Just press the handle part 7 downward at the same time to make the block 3 and the movable plate 8 leave the second slot 14 and the first slot 13, and then pull the handle part 7 outward to make the movable block 301 move away from the cylinder body 1 and the end along the L-shaped slide groove 15, and then take out the dust cover shell upward, and only need to replace the new dust cover shell, which also reduces the maintenance cost; the one-way air inlet 18, the one-way air outlet 21, the air pipe 20, the high elastic spring 11, the cylinder body 1, the piston rod 2 and the principle of its activity are all disclosed in the prior art, so they will not be described in detail.

[0035] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A dustproof cylinder, characterized in that: The invention comprises a cylinder body (1), wherein a piston rod (2) is arranged inside the cylinder body (1), an end (201) of the piston rod (2) extends to the upper end of the cylinder body (1), a dust cover shell is arranged outside the upper end of the cylinder body (1), the dust cover shell comprises a bottom shell part (6), a folding part (4) and a top shell part (17), a ring (19) is fixedly arranged on the upper end of the bottom shell part (6), the outer side of the ring (19) is fixedly connected to the bottom end of the folding part (4), the upper end of the folding part (4) is fixedly connected to the top shell part (17), the folding part (4) is sleeved on the outer side of the end (201), the top shell part (17) and the bottom shell part (6) are fixedly connected to the corresponding end (201) and the cylinder body (1) through a plurality of locking structures, air bags are arranged on both sides of the bottom shell part (6), and the air bags are communicated with the folding part (4) through an air pipe (20).

2. A dustproof cylinder according to claim 1, characterized in that: The airbag comprises a bottom ring (22), one side of the bottom ring (22) is fixedly connected to the corresponding bottom shell portion (6), and the other side of the bottom ring (22) is fixedly provided with a folded bag portion (5), wherein clean gas is provided in the folded bag portion (5).

3. A dustproof cylinder according to claim 2, characterized in that: A one-way air inlet (18) and a one-way air outlet (21) are embedded and fixedly provided on the upper end of the bottom ring (22) and the side of the ring (19) close to the bottom ring (22); the one-way air inlet (18) at the upper end of the bottom ring (22) and the one-way air outlet (21) at the upper end of the ring (19) are communicated and fixedly connected via the air pipe (20); the one-way air outlet (21) at the upper end of the bottom ring (22) and the one-way air inlet (18) at the upper end of the ring (19) are communicated and fixedly connected via the air pipe (20).

4. A dustproof cylinder according to claim 1, characterized in that: The lock structure comprises a movable plate (8), a handle portion (7), a clamping block (3), a high-elastic spring (11) and an extrusion plate (12); the top cover portion (17) and the bottom shell portion (6) are both provided with a through groove (9); a spring groove (10) is provided at the lower end of the through groove (9); the high-elastic spring (11) is fixedly provided in the spring groove (10); the extrusion plate (12) is fixedly provided at the upper end of the high-elastic spring (11); a handle portion (7) is fixedly provided on one side of the movable plate (8); the handle portion (7) and the movable plate (8) are located on the extrusion plate (12). The end portion (201) and the cylinder body (1) are connected to each other at a position corresponding to the through groove (9) and are provided with an inner groove (16); the inner groove (16) and one side of the upper end of the through groove (9) are both connected to each other and are provided with a first card groove (13); the upper end of the movable plate (8) is clamped in the first card groove (13); the clamping block (3) is fixedly provided on the upper end of the movable plate (8) away from the handle portion (7); the upper end of the first card groove (13) is connected to a position corresponding to the clamping block (3) and is provided with a second card groove (14); the clamping block (3) is clamped in the corresponding second card groove (14).

5. A dustproof cylinder according to claim 4, characterized in that: Both ends of the clamping block (3) are fixedly provided with moving blocks (301); both sides of the clamping slot 2 (14), the clamping slot 1 (13), the inner slot (16) and the through slot (9) are provided with L-shaped sliding grooves (15); and the moving block (301) is clamped in the corresponding L-shaped sliding groove (15).

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