CN210919628U

CN210919628U - Self-locking air cylinder

Info

Publication number: CN210919628U
Application number: CN201921626694.4U
Authority: CN
Inventors: 尹国洪; 刘献发; 王盛
Original assignee: Shenzhen Maxair Technology Development Co ltd
Current assignee: Shenzhen Jiamai Automation Co.,Ltd.
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-03
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a self-locking cylinder, including the cylinder, the bottom of cylinder is connected with no pole side end cover, and the top of cylinder is connected with pole side end cover, is connected with the pull rod of two sets of symmetric distributions between no pole side end cover and the pole side end cover, has seted up the air inlet in the no pole side end cover, and sliding connection has the piston piece in the cylinder, and the top of piston piece is connected with the piston rod, and the piston rod upper end stretches out the pole side end cover, reserves the clearance between pole side end cover and the piston rod lateral wall, installs the auto-lock subassembly on the pole side end cover. The utility model has the advantages of reasonable design, easy operation avoids the dust to invade the cylinder through shield and dust ring, improves device life, starts micro motor during piston piece contact switch for self-locking mechanism's protruding embedding of location ball is spacing spherical concave in, can die the piston rod lock, can effectively support top article, has improved the stability of device, has reduced the potential safety hazard, can carry out good shock attenuation guard action to the piston piece through the cushion collar.

Description

Self-locking air cylinder

Technical Field

The utility model relates to a cylinder technical field especially relates to a self-locking cylinder.

Background

The cylinder is a cylindrical metal part that guides the piston to reciprocate linearly in the cylinder. The air converts thermal energy to mechanical energy by expansion in the engine cylinder, and the gas is compressed by the piston in the compressor cylinder to increase pressure. The housing of a turbine, a rotary piston engine or the like is often also referred to as a cylinder. The application fields of the air cylinder are printing, semiconductors, automatic control, robots and the like.

The cylinder is as in the atmospheric pressure transmission with compressed gas's pressure energy conversion for the pneumatic actuator of mechanical energy, and the sealed of traditional cylinder is relatively poor with stability, has the unstable problem of input atmospheric pressure, when adopting the cylinder to support the effect to the object, leads to the piston rod to drop because of atmospheric pressure is unstable easily to can't carry out stable supporting role to article, and have certain potential safety hazard, therefore, we have proposed a auto-lock cylinder.

SUMMERY OF THE UTILITY MODEL

The utility model provides a self-locking cylinder, easy operation, stability is high. In order to realize the technical purpose, the technical effect is achieved, and the utility model discloses a realize through following technical scheme.

The utility model provides a self-locking air cylinder, includes the cylinder, the bottom of cylinder is connected with no pole side end cover, the top of cylinder is connected with pole side end cover, be connected with the pull rod of two sets of symmetric distributions between no pole side end cover and the pole side end cover, the air inlet has been seted up in the no pole side end cover, sliding connection has the piston block in the cylinder, the top of piston block is connected with the piston rod, the pole side end cover is stretched out to the piston rod upper end, it has the clearance to reserve between pole side end cover and the piston rod lateral wall, install the auto-lock subassembly on the pole side end cover.

Preferably, in a auto-lock cylinder, the auto-lock subassembly is including seting up the activity chamber at pole side end cover inside wall, the spout has been seted up to both ends symmetry about the inner chamber in activity chamber, and is two sets of sliding connection has the locking block between the spout, the left side wall of locking block is connected with the location ball protruding, the lateral wall of pole side end cover is connected with micro motor, micro motor's power take off end is connected with lead screw, the central point threaded connection lead screw of locking block.

Preferably, in the self-locking cylinder, the middle part of the outer side wall of the piston block is connected with a sealing ring, the upper end and the lower end of the piston block are symmetrically connected with a buffer sleeve, the upper end of the buffer sleeve is positioned outside the piston rod, the lower end of the buffer sleeve is internally provided with a return spring, and the upper end and the lower end of the return spring are respectively connected with the piston block and a side end cover without a rod.

Preferably, in the self-locking cylinder, the top of the rod side end cover is screwed with a dust cover, and a dust ring is embedded in the inner side wall of the dust cover.

Preferably, in the self-locking cylinder, the outer side wall of the piston rod is provided with a limiting spherical recess matched with the positioning spherical protrusion.

Preferably, in the auto-lock cylinder, the inner chamber top of cylinder is connected with the stopper, the lower extreme of stopper is connected with the contact switch, the lateral wall of pole side end cover is connected with master switch, the equal electric connection micro motor of contact switch and master switch.

Preferably, in the self-locking cylinder, the air inlet is externally connected with air supply equipment.

The utility model has the advantages that:

the utility model has the advantages of reasonable design, the operation is thus simple, the cylinder gets into operating condition when the air inlet in the no pole side end cover admits air, the piston piece slides along the cylinder under the gas pressure effect, it stretches out to drive the piston rod along pole side end cover clearance, can carry out the jacking effect to external object, avoid dust to invade the cylinder through shield and dust ring, improve device life, start micro motor during piston piece contact switch, make self-locking mechanism's protruding embedding of location ball in the spacing ball is concave, can lock the piston rod, even air inlet atmospheric pressure is unstable, the piston rod also can not drop, can effectively support top article, the stability of device has been improved, the potential safety hazard is reduced, can carry out good shock attenuation guard action to the piston piece through the cushion collar.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the self-locking assembly of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present embodiment is a self-locking cylinder, including a cylinder barrel 1, a rodless side end cap 2 is connected to the bottom of the cylinder barrel 1, a rod side end cap 3 is connected to the top of the cylinder barrel 1, two groups of symmetrically distributed pull rods 4 are connected between the rodless side end cap 2 and the rod side end cap 3, an air inlet 5 is formed in the rodless side end cap 2, a piston block 6 is slidably connected to the cylinder barrel 1, a piston rod 7 is connected to the top of the piston block 6, the rod side end cap 3 extends out of the upper end of the piston rod 7, a gap is reserved between the rod side end cap 3 and the outer side wall of the piston rod 7, and a.

The self-locking assembly 8 comprises a movable cavity 801 arranged on the inner side wall of the rod side end cover 3, sliding grooves 802 are symmetrically formed in the upper end and the lower end of the inner cavity of the movable cavity 801, a locking block 803 is slidably connected between the two groups of sliding grooves 802, a positioning ball boss 804 is connected to the left side wall of the locking block 803, a micro motor 805 is connected to the outer side wall of the rod side end cover 3, a power output end of the micro motor 805 is connected with a guide screw 806, and the center of the locking block 803 is in threaded connection with the guide screw.

The middle part of the outer side wall of the piston block 6 is connected with a sealing ring 9, the upper end and the lower end of the piston block 6 are symmetrically connected with a buffer sleeve 10, the upper buffer sleeve 10 is positioned outside the piston rod 7, a return spring 11 is arranged in the lower buffer sleeve 10, and the upper end and the lower end of the return spring 11 are respectively connected with the piston block 6 and the side end cover 2 without the rod.

The top of the rod side end cover 3 is in threaded connection with a dust cover 12, and a dust ring 13 is installed on the inner side wall of the dust cover 12 in an embedded mode.

The outer side wall of the piston rod 7 is provided with a limiting spherical concave 14 matched with the positioning spherical convex 804.

The inner chamber top of cylinder 1 is connected with stopper 15, and the lower extreme of stopper 15 is connected with contact switch 16, and the lateral wall of pole side end cover 3 is connected with main control switch 17, contact switch 16 and the equal electric connection micro motor 805 of main control switch 17.

The air inlet 5 is externally connected with air supply equipment, so that air can be conveniently fed into the cylinder barrel 1.

The utility model discloses a concrete implementation way does:

when the device is used, an external power supply is connected, when an air inlet 5 in a rodless side end cover 2 is used for air inlet, an air cylinder enters into a working state, a piston block 6 slides along a cylinder barrel 1 under the air pressure, the air tightness of the cylinder barrel 1 is improved through a sealing ring 9, a reset spring 11 stretches when the piston block 6 moves upwards, a piston rod 7 extends out along a gap of a rod side end cover 3, the external object can be jacked, the gap of the rod side end cover 3 is covered through a dustproof cover 12, the dustproof effect is improved through a dustproof ring 13, dust can be prevented from invading into the cylinder barrel 1, the service life of the device is prolonged, the piston block 6 moves upwards to contact a contact switch 16 at the lower end of a limiting block 15, the shock absorption protection is carried out through a buffer sleeve 10, a micro motor 805 is started through the contact switch 16, the micro motor 805 drives a guide screw 806 to rotate, the guide screw 806 is in threaded connection, and then make locking block 803 left end stretch into the clearance, the protruding 804 of location ball inserts spacing spherical recess 14 on the piston rod 7, can die the piston rod 7 lock, piston rod 7 can not freely move, even air inlet 5 atmospheric pressure is unstable, piston rod 7 can not drop yet, can effectively support top article, the stability of device has been improved, the potential safety hazard has been reduced, when piston rod 7 needs to roll back, through master switch 17 with micro motor 805 reversal, can make the protruding 804 of location ball break away from spacing spherical recess 14, piston rod 7 rolls back along with piston block 6 under reset spring 11's spring action, carry out shock attenuation protection through buffer sleeve 10 to piston block 6.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a auto-lock cylinder, includes cylinder (1), its characterized in that: the utility model discloses a cylinder, including cylinder (1), rodless side end cover (2), pull rod (4) that the top of cylinder (1) is connected with pole side end cover (3), be connected with two sets of symmetric distribution between rodless side end cover (2) and pole side end cover (3), air inlet (5) have been seted up in rodless side end cover (2), sliding connection has piston piece (6) in cylinder (1), the top of piston piece (6) is connected with piston rod (7), stretch out pole side end cover (3) in piston rod (7) upper end, it is gapped to reserve between pole side end cover (3) and piston rod (7) lateral wall, install auto-lock subassembly (8) on pole side end cover (3).

2. The self-locking cylinder of claim 1, wherein: self-locking assembly (8) are including offering activity chamber (801) at pole side end cover (3) inside wall, spout (802) have been seted up to both ends symmetry about the inner chamber in activity chamber (801), and are two sets of sliding connection has locking block (803) between spout (802), the left side wall of locking block (803) is connected with location bulb (804), the lateral wall of pole side end cover (3) is connected with micro motor (805), the power take off end of micro motor (805) is connected with lead screw (806), threaded connection lead screw (806) are located to the center of locking block (803).

3. The self-locking cylinder of claim 1, wherein: the outer side wall middle part of piston piece (6) is connected with sealing washer (9), the upper and lower both ends symmetric connection of piston piece (6) has cushion collar (10), upper end cushion collar (10) are located piston rod (7) outside, the lower extreme be equipped with reset spring (11) in cushion collar (10), piston piece (6) and no pole side end cover (2) are connected respectively to the upper and lower both ends of reset spring (11).

4. The self-locking cylinder of claim 1, wherein: the top of the rod side end cover (3) is connected with a dustproof cover (12) in a threaded mode, and a dustproof ring (13) is installed on the inner side wall of the dustproof cover (12) in an embedded mode.

5. The self-locking cylinder of claim 2, wherein: the outer side wall of the piston rod (7) is provided with a limiting spherical recess (14) matched with the positioning spherical protrusion (804).

6. The self-locking cylinder of claim 2, wherein: the inner chamber top of cylinder (1) is connected with stopper (15), the lower extreme of stopper (15) is connected with contact switch (16), the lateral wall of pole side end cover (3) is connected with master switch (17), contact switch (16) and the equal electric connection micro motor (805) of master switch (17).

7. The self-locking cylinder of claim 1, wherein: the air inlet (5) is externally connected with air supply equipment.