Efficient double-self-locking air cylinder

Abstract

The utility model relates to the technical field of air cylinders, in particular to an efficient double-self-locking air cylinder which comprises a cylinder body and a piston rod, the piston rod is movably located in the cylinder body, a front end cover is arranged at the front end of the cylinder body, a rear end cover is arranged at the rear end of the cylinder body, two first self-locking assemblies are symmetrically arranged in the front end cover, and six grooves are formed in one end of the piston rod. A second self-locking assembly is arranged in the groove and comprises a second spring, the second spring is fixedly installed in the groove, and a self-locking ball is arranged at the other end of the second spring. According to the utility model, when no air pressure exists in the air cylinder, the self-locking bead is in tight extrusion contact with the inner wall of the cylinder body under the action of the spring II to slow down the descending speed of the piston rod, and the self-locking head is bounced into the limiting hole I under the action of the spring I to lock the piston rod, so that the piston rod is prevented from continuously moving downwards to cause collapse of the filter bag; and the safety of the bag type dust collector is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air cylinder especially relates to a high -efficient double self -locking air cylinder. BACKGROUND

[0002] As the core equipment of industrial dust treatment, bag type dust collector is widely used in high pollution industries such as steel, cement, chemical industry, its core function is realized gas-solid separation through filter bag filtering dust gas, and air cylinder plays an important role in bag type dust collector.

[0003] Air cylinder is a kind of execution element that converts the energy of compressed air into linear reciprocating motion or swing motion, and it plays an important role in bag type dust collector, and the traditional air cylinder does not have self-locking structure, when the air cylinder is broken, the piston rod will continue to move downward, resulting in filter bag collapse, which may cause dust leakage accident. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a high -efficient double self -locking air cylinder.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of high -efficient double self -locking air cylinder, including cylinder body, piston rod, the piston rod is located in cylinder body, cylinder body front end is provided with front end cover, cylinder body rear end is provided with rear end cover, two self-locking components one are symmetrically set in front end cover, piston rod one end is provided with six recesses, recess is provided with self-locking component two, self-locking component two includes spring two, spring two is fixedly installed in recess, spring two other end is provided with self-locking bead;

[0007] The self-locking component one includes T-shaped rod, T-shaped rod bottom is provided with self-locking head, both sides of self-locking head one end are provided with sliding block, T-shaped rod is provided with spring one.

[0008] In addition, preferably, the rear end cover inner wall is provided with six lock grooves matched with the self-locking beads, and the self-locking beads are inserted into the lock grooves.

[0009] In addition, preferably, the front end cover is provided with a movable groove one and a movable groove two at both ends, a through hole is formed between the movable groove one and the movable groove two, and sliding grooves are formed at both ends of the inner wall of the movable groove two.

[0010] In addition, preferably, the T-shaped rod passes through the through hole and is located in the movable groove two.

[0011] In addition, preferably, the self-locking head is located in the movable groove two, and the sliding block is located in the sliding groove.

[0012] In addition, preferably, one end of the spring is fixedly connected with the top of the self-locking head, and the other end is fixedly connected with the top of the movable groove.

[0013] In addition, preferably, two ends of the piston rod are respectively provided with a group of limiting holes one and a group of limiting holes two, and the self-locking head is inserted into the limiting holes two.

[0014] The utility model discloses the beneficial effect that:

[0015] In the utility model, when there is no gas pressure in the cylinder, the self-locking bead is tightly pressed and contacted with the inner wall of the cylinder body under the action of the spring two, the descending speed of the piston rod is slowed down, the self-locking head is elastically arranged into the limiting hole one under the action of the spring one, the piston rod is locked, the filter bag is prevented from collapsing caused by the continuous downward movement of the piston rod, and the safety of the bag type dust collector is favorable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model proposes a whole structure schematic diagram of high -efficient double self -locking cylinder;

[0017] Figure 2 The utility model proposes an internal structure schematic diagram of high -efficient double self -locking cylinder when not using;

[0018] Figure 3 The utility model proposes an internal structure schematic diagram of high -efficient double self -locking cylinder when gas breaks;

[0019] Figure 4 The utility model proposes a piston rod sectional structure schematic diagram of high -efficient double self -locking cylinder;

[0020] Figure 5 The utility model proposes an internal structure schematic diagram of high -efficient double self -locking cylinder;

[0021] Figure 6 The utility model proposes a high -efficient double self -locking cylinder, Figure 5 The utility model proposes an enlarged structure schematic diagram of place A in the middle;

[0022] Figure 7 The utility model proposes a self -locking assembly one structure schematic diagram of high -efficient double self -locking cylinder.

[0023] In the drawing: 1 cylinder body, 2 front end cover, 21 movable groove one, 22 through -hole, 23 movable groove two, 231 sliding slot, 3 rear end cover, 31 lock groove, 4 piston rod, 41 limiting hole one, 42 recess, 43 limiting hole two, 5 self -locking assembly one, 51 T -shaped rod, 52 spring one, 53 self -locking head, 531 sliding block, 6 self -locking assembly two, 61 self -locking bead, 62 spring two. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments.

[0025] With reference to Figures 1-7 The utility model discloses a high -efficient double self -locking cylinder, including cylinder 1, piston rod 4, piston rod 4 is located in cylinder 1, cylinder 1 front end is provided with front end cover 2, cylinder 1 rear end is provided with rear end cover 3, two self -locking assemblies one 5 are provided with in front end cover 2 symmetry, and piston rod 4 one end is provided with six recess 42, and recess 42 is provided with self -locking assembly no.

[0026] Among them, self -locking assembly one 5 includes T -shaped rod 51, and T -shaped rod 51 bottom is provided with self -locking head 53, and both sides of self -locking head 53 one end are provided with slider 531, and T -shaped rod 51 is provided with spring one 52.

[0027] Meanwhile, the inner wall of rear end cover 3 is provided with six lock grooves 31 matched with self -locking beads 61, and the self -locking beads 61 are inserted into the lock grooves 31 to preliminarily lock the piston rod 4.

[0028] And, the front end cover 2 is provided with a movable groove one 21 and a movable groove two 23 at both ends, a through hole 22 is provided between the movable groove one 21 and the movable groove two 23, and the inner wall of the movable groove two 23 is provided with a sliding groove 231 at both ends, so as to facilitate the self -locking work of the self -locking assembly one 5.

[0029] Meanwhile, a part of the T-shaped rod 51 passes through the through hole 22 and is located in the movable groove two 23.

[0030] And, a part of the self -locking head 53 is located in the movable groove two 23, and the slider 531 is located in the sliding groove 231, so that the movement of the self -locking head 53 is more stable.

[0031] Meanwhile, the spring one 52 is fixedly connected with the top of the self -locking head 53 and the top of the movable groove two 23 at both ends.

[0032] And, a group of limiting holes one 41 and a group of limiting holes two 43 are provided at both ends of the piston rod 4, the self -locking head 53 is inserted into the limiting holes two 43, and the piston rod 4 is locked again to avoid damage caused by the continuous downward movement of the piston rod 4.

[0033] In this embodiment, when in use and no air pressure in the cylinder 1, the self-locking ball 61 is then set to enter the locking groove 31 under the action of the spring 62, and the piston rod 4 is preliminarily locked, and the self-locking head 53 is set to enter the limiting hole 43 under the action of the spring 52, and the piston rod 4 is secondarily locked, so that the piston rod 4 is bidirectionally locked, and the piston rod 4 is prevented from being accidentally lowered;

[0034] When the air cylinder is suddenly cut off during work, the air pressure in the air cylinder is slowly attenuated, the self-locking ball 61 is slowly moved out of the groove 42, the self-locking ball 61 is in contact with the inner wall of the cylinder 1, the speed of the piston rod 4 is slowed down, the piston rod 4 is slowly lowered, the self-locking head 53 is slowly moved out of the movable groove 23, and when the piston rod 4 is lowered to a certain position and the position of the limiting hole 41 is at the same horizontal position as the position of the self-locking head 53, the self-locking head 53 is inserted into the limiting hole 41 under the elastic action of the spring 52, the piston rod 4 is limited, and the piston rod 4 is prevented from continuing to be lowered to cause the filter bag to be collapsed.

[0035] In the utility model, when there is no air pressure in the air cylinder, the self-locking ball 61 is in close contact with the inner wall of the cylinder 1 under the action of the spring 62, the descending speed of the piston rod 4 is slowed down, the self-locking head 53 is set to enter the limiting hole 41 under the action of the spring 52, the piston rod 4 is locked, the piston rod 4 is prevented from continuing to be lowered to cause the filter bag to be collapsed, and the safety of the bag-type dust collector is beneficial.

[0036] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.

Claims

1. A high-efficiency double self-locking cylinder comprising a cylinder body (1), a piston rod (4), characterized in that, The piston rod (4) is movably arranged in the cylinder (1), the front end of the cylinder (1) is provided with a front end cover (2), the rear end of the cylinder (1) is provided with a rear end cover (3), two self-locking assemblies (5) are symmetrically arranged in the front end cover (2), one end of the piston rod (4) is provided with six grooves (42), the grooves (42) are provided with self-locking assemblies (6), the self-locking assemblies (6) comprise springs (62), the springs (62) are fixedly installed in the grooves (42), and the other ends of the springs (62) are provided with self-locking beads (61). The self-locking assembly (5) comprises a T-shaped rod (51), the bottom of the T-shaped rod (51) is provided with a self-locking head (53), both sides of one end of the self-locking head (53) are provided with sliding blocks (531), and the T-shaped rod (51) is provided with springs (52).

2. A high efficiency dual self-locking cylinder as claimed in claim 1, wherein, Six lock grooves (31) matched with the self-locking beads (61) are formed in the inner wall of the rear end cover (3), and the self-locking beads (61) are inserted into the lock grooves (31).

3. The high efficiency dual self-locking cylinder of claim 1, wherein, The front end cover (2) is provided with movable grooves (21) and (23) at both ends, a through hole (22) is formed between the movable grooves (21) and (23), and sliding grooves (231) are formed in the inner walls of the movable grooves (23).

4. The high efficiency dual self-locking cylinder of claim 1, wherein, Part of the T-shaped rod (51) passes through the through hole (22) and is located in the movable groove (23).

5. The high efficiency dual self-locking cylinder of claim 1, wherein, Part of the self-locking head (53) is located in the movable groove (23), and the sliding blocks (531) are slidably located in the sliding grooves (231).

6. The high efficiency dual self-locking cylinder of claim 1, wherein, The springs (52) are fixedly connected with the top of the self-locking head (53) and the top of the movable groove (23) respectively.

7. The high efficiency dual self-locking cylinder of claim 1, wherein, A group of limiting holes (41) and (43) are formed in the upper ends of the piston rod (4), and the self-locking head (53) is inserted into the limiting hole (43).

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