阅读说明：本技术 一种基于气压控制的链式卡箍用保护装置 (Chain is protection device for clamp based on atmospheric pressure control ) 是由 汤金存 于 2021-07-09 设计创作，主要内容包括：本发明涉及链式卡箍技术领域,且公开了一种基于气压控制的链式卡箍用保护装置,包括固定块,所述固定块的正面滑动连接有链条,所述链条的背面固定连接有拉力球,所述链条的底部固定连接有拉力弹簧,所述张紧块的左侧活动连接有挡板,所述按钮的右侧固定连接有压球,所述压球的底部插接有排气管,所述排气管的内壁活动连接有气阀,所述压球的右侧插接有进气管。该基于气压控制的链式卡箍用保护装置,通过转动螺杆,螺杆带动螺母上升,螺母带动张紧块上升,张紧块带动导杆上升,导杆带动棘块上升,棘块带动棘爪上升,棘爪在棘槽的作用下摆动,再通过棘爪与棘块的配合使用,从而达到了能自动锁紧装置的效果。(The invention relates to the technical field of chain type clamps and discloses a protection device for a chain type clamp based on air pressure control, which comprises a fixed block, wherein the front side of the fixed block is connected with a chain in a sliding mode, the back side of the chain is fixedly connected with a tension ball, the bottom of the chain is fixedly connected with a tension spring, the left side of the tension block is movably connected with a baffle plate, the right side of a button is fixedly connected with a pressure ball, the bottom of the pressure ball is inserted with an exhaust pipe, the inner wall of the exhaust pipe is movably connected with an air valve, and the right side of the pressure ball is inserted with an air inlet pipe. This protection device for chain clamp based on atmospheric control, through rotating the screw rod, the screw rod drives the nut and rises, and the nut drives the tensioning piece and rises, and the tensioning piece drives the guide arm and rises, and the guide arm drives the thorn piece and rises, and the thorn piece drives the pawl and rises, and the pawl swings under the effect of thorn groove, and rethread pawl uses with the cooperation of thorn piece to the effect that can automatic locking device has been reached.)

1. The utility model provides a protection device for chain clamp based on air pressure control, includes fixed block (1), its characterized in that: the front sliding connection of fixed block (1) has chain (2), the back fixedly connected with pulling force ball (3) of chain (2), the bottom fixedly connected with pulling force spring (4) of chain (2), the inside of fixed block (1) is pegged graft and is had guide arm (5), the inside sliding connection of guide arm (5) has slide (6), the back fixedly connected with thrust ball (7) of slide (6), the top swing joint of slide (6) has connecting rod (8), one side swing joint that slide (6) were kept away from to connecting rod (8) has thorn piece (9), the inside swing joint of thorn piece (9) has pawl (10), the bottom fixedly connected with tensioning piece (11) of guide arm (5), the inside of tensioning piece (11) is pegged graft and is had screw rod (12), the outside threaded connection of screw rod (12) has nut (13), the inside fixedly connected with gasbag (14) of tensioning piece (11), right side fixedly connected with air pressure bar (15) of gasbag (14), the right side swing joint of air pressure bar (15) has pull rod (16), one side swing joint that air pressure bar (15) were kept away from in pull rod (16) has stopper (17), the left side swing joint of tensioning piece (11) has baffle (18), the inner wall sliding connection of tensioning piece (11) has button (19), the right side fixedly connected with of button (19) presses ball (20), it has blast pipe (21) to peg graft in the bottom of pressing ball (20), the inner wall swing joint of blast pipe (21) has pneumatic valve (22), it has intake pipe (23) to peg graft in the right side of pressing ball (20).

2. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: the inner wall of the fixing block (1) is provided with a ratchet groove.

3. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: the back of the chain (2) is movably connected with a sliding block, and the sliding block is connected inside the fixing block (1) in a sliding mode.

4. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: a swing groove is formed in one side, far away from the connecting rod (8), of the ratchet block (9), and the pawl (10) is connected inside the swing groove in a sliding mode.

5. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: the screw rod (12) is clamped at the bottom of the fixing block (1).

6. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: the limiting groove is formed in the outer side of the nut (13), and the nut (13) is clamped inside the tensioning block (11).

7. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: the air bag (14) is respectively connected with the exhaust pipe (21) and the pull ball (3) through air pipes.

8. The pneumatic control-based protector for a chain type hose clamp according to claim 1, wherein: a blocking groove is formed in the inner wall of the exhaust pipe (21), and the blocking groove is matched with the air valve (22) to enable the exhaust pipe (21) to be a one-way valve.

Technical Field

The invention relates to the technical field of chain type hoops, in particular to a protection device for a chain type hoop based on air pressure control.

Background

The clamp is a connecting device for connecting pipe fittings, valves and pipeline fittings with grooves, is used for tightening the quick connectors, generally has two connectors with gaskets, rubber, silica gel and polytetrafluoroethylene, and is mainly fastened through bolts in a chain type clamp.

Current chain clamp does not possess the function of preventing excessively screwing up, and in the installation, the condition of bolt overscrewing often can appear, not only can lead to the bolt smooth silk, also can lead to the later stage to dismantle the degree of difficulty and increase, and the while is after long-time the use, and the bolt produces not hard up easily, influences the leakproofness of clamp.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a protection device for a chain type clamp based on air pressure control, which has the advantages of capability of preventing over-screwing of a bolt, long service life, simplicity in disassembly and assembly, capability of automatically locking a device, good sealing effect and the like, and solves the problems that the existing chain type clamp does not have the function of preventing over-screwing, the bolt is frequently over-screwed in the installation process, the bolt is not only easy to slip, but also the later-stage disassembly difficulty is increased, and meanwhile, the bolt is easy to loosen after long-time use, and the sealing performance of the clamp is influenced.

(II) technical scheme

In order to achieve the purposes of preventing the bolt from being over-screwed, having long service life, simple disassembly and assembly, being capable of automatically locking the device and good sealing effect, the invention provides the following technical scheme: a chain type protection device for a clamp based on air pressure control comprises a fixed block, wherein a chain is connected to the front side of the fixed block in a sliding manner, a tension ball is fixedly connected to the back side of the chain, a tension spring is fixedly connected to the bottom of the chain, a guide rod is inserted into the fixed block, a sliding plate is connected to the guide rod in a sliding manner, a thrust ball is fixedly connected to the back side of the sliding plate, a connecting rod is movably connected to the top of the sliding plate, a ratchet block is movably connected to one side, away from the sliding plate, of the connecting rod, a pawl is movably connected to the inside of the ratchet block, a tension block is fixedly connected to the bottom of the guide rod, a screw rod is inserted into the tension block, a nut is connected to the outer side of the screw rod in a threaded manner, an air bag is fixedly connected to the inside of the tension block, an air pressure rod is fixedly connected to the right side of the air bag, a pull rod is movably connected to the right side of the air pressure rod, one side swing joint that the atmospheric pressure pole was kept away from to the pull rod has the stopper, the left side swing joint of tensioning piece has the baffle, the inner wall sliding connection of tensioning piece has the button, the right side fixedly connected with pressure ball of button, the bottom of pressing the ball is pegged graft and is had the blast pipe, the inner wall swing joint of blast pipe has the pneumatic valve, the right side of pressing the ball is pegged graft and is had the intake pipe.

Preferably, the inner wall of the fixed block is provided with a ratchet groove which is matched with the pawl for use and used for limiting the descending of the tensioning block.

Preferably, the back of the chain is movably connected with a sliding block, and the sliding block is connected inside the fixed block in a sliding mode.

Preferably, a swing groove is formed in one side, far away from the connecting rod, of the ratchet block, and the pawl is connected to the inside of the swing groove in a sliding mode, so that the pawl only limits the tension block to descend, and cannot limit the tension block to ascend.

Preferably, the screw rod is clamped at the bottom of the fixing block.

Preferably, the limiting groove is formed in the outer side of the nut, and the nut is clamped in the tensioning block.

Preferably, the air bag is respectively connected with the exhaust pipe and the tension ball through the air pipe.

Preferably, the inner wall of the exhaust pipe is provided with a blocking groove, and the blocking groove is matched with the air valve to enable the exhaust pipe to be a one-way valve.

(III) advantageous effects

Compared with the prior art, the invention provides a protection device for a chain type hoop based on air pressure control, which has the following beneficial effects:

1. this protection device for chain clamp based on atmospheric control, through rotating the screw rod, the screw rod drives the nut and rises, the nut drives the tensioning piece and rises, the tensioning piece drives the chain shrink, when the chain shrink to a certain extent, the relative fixed block of chain rises, the chain rises and drives the pulling force ball inflation, the pulling force ball inflation makes the gasbag reduce through the trachea, the gasbag reduces and makes the air pressure bar slide left, the air pressure bar drives the pull rod and moves left, the nut is kept away from to the pull rod drive stopper, the cooperation of rethread nut and tensioning piece is used, thereby reached and prevented that the bolt from excessively twisting, long service life's effect.

2. This protection device for chain clamp based on atmospheric control, through rotating the screw rod, the screw rod drives the nut and rises, and the nut drives the tensioning piece and rises, and the tensioning piece drives the guide arm and rises, and the guide arm drives the thorn piece and rises, and the thorn piece drives the pawl and rises, and the pawl swings under the effect of thorn groove, and rethread pawl uses with the cooperation of thorn piece to the effect that can automatic locking device has been reached.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a partial view of a mounting block of the present invention;

FIG. 3 is an enlarged view of part A of FIG. 2;

figure 4 is a partial schematic view of a structural tension block of the present invention;

FIG. 5 is an enlarged view of part B of the block diagram of FIG. 4 according to the present invention.

In the figure: 1. a fixed block; 2. a chain; 3. a tension ball; 4. a tension spring; 5. a guide bar; 6. a slide plate; 7. a thrust ball; 8. a connecting rod; 9. a ratchet block; 10. a pawl; 11. a tensioning block; 12. a screw; 13. a nut; 14. an air bag; 15. a pneumatic rod; 16. a pull rod; 17. a limiting block; 18. a baffle plate; 19. a button; 20. pressing the ball; 21. an exhaust pipe; 22. an air valve; 23. an air inlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a chain type hoop protection device based on air pressure control comprises a fixed block 1, a ratchet groove is formed in the inner wall of the fixed block 1, the ratchet groove is used in cooperation with a pawl 10 and used for limiting a tension block 11 to descend, a chain 2 is slidably connected to the front surface of the fixed block 1, a slider is movably connected to the back surface of the chain 2 and is slidably connected to the inside of the fixed block 1, a tension ball 3 is fixedly connected to the back surface of the chain 2, a tension spring 4 is fixedly connected to the bottom of the chain 2, a guide rod 5 is inserted into the fixed block 1, a sliding plate 6 is slidably connected to the inside of the guide rod 5, a thrust ball 7 is fixedly connected to the back surface of the sliding plate 6, a connecting rod 8 is movably connected to the top of the sliding plate 6, a ratchet block 9 is movably connected to one side of the connecting rod 8 away from the sliding plate 6, a swing groove is formed in one side of the ratchet block 9 away from the connecting rod 8, and the pawl 10 is slidably connected to the inside of the swing groove, so that the pawl 10 can only limit the tension block 11 to descend, but can not limit the tension block 11 to ascend, the pawl 10 is movably connected inside the ratchet block 9, the tension block 11 is fixedly connected to the bottom of the guide rod 5, the screw 12 is inserted inside the tension block 11, the screw 12 is clamped at the bottom of the fixed block 1, the nut 13 is in threaded connection with the outer side of the screw 12, the limiting groove is formed in the outer side of the nut 13, the nut 13 is clamped inside the tension block 11, the air bag 14 is fixedly connected inside the tension block 11, the air bag 14 is respectively connected with the exhaust pipe 21 and the tension ball 3 through the air pipe, the air pressure rod 15 is fixedly connected to the right side of the air bag 14, the pull rod 16 is movably connected to the right side of the air pressure rod 15, the limit block 17 is movably connected to one side of the pull rod 16 far away from the air pressure rod 15, the baffle 18 is movably connected to the left side of the tension block 11, the clockwork spring is fixedly connected inside the baffle 18, and the button 19 is slidably connected to the inner wall of the tension block 11, the right side fixedly connected with of button 19 presses ball 20, and the bottom of pressing ball 20 is pegged graft and is had blast pipe 21, and the inner wall of blast pipe 21 has seted up and has kept off the groove, and keeps off the groove and cooperate with pneumatic valve 22 and make blast pipe 21 be the check valve, and the inner wall swing joint of blast pipe 21 has pneumatic valve 22, and the right side of pressing ball 20 is pegged graft and is had intake pipe 23, and intake pipe 23 also is the check valve, can only admit air.

When the chain type hoop needs to be fastened, the screw 12 is rotated, the screw 12 drives the nut 13 to ascend, the nut 13 drives the tensioning block 11 to ascend, the tensioning block 11 drives the chain 2 to contract, when the chain 2 contracts to a certain degree, the chain 2 ascends relative to the fixed block 1, the chain 2 ascends to drive the slide block to ascend, the slide block drives the tension ball 3 to expand, the tension ball 3 expands to enable the air bag 14 to shrink through the air pipe, the air bag 14 shrinks to enable the air pressure rod 15 to slide leftwards, the air pressure rod 15 drives the pull rod 16 to move leftwards, the pull rod 16 drives the limiting block 17 to be far away from the nut 13, at the moment, the nut 13 rotates along with the screw 12, the tensioning block 11 stops rotating, the screw 12 at the moment, the tensioning block 11 ascends and simultaneously drives the guide rod 5 to ascend, the guide rod 5 drives the ratchet block 9 to ascend, the ratchet block 9 drives the ratchet 10 to ascend, the ratchet 10 swings under the action of the ratchet groove, when the tensioning block 11 stops for a certain time, the pawl 10 limits the tension block 11 to descend under the action of the swing groove, and the fastening stability is guaranteed.

When the chain is used up, the baffle 18 is shifted to swing, the button 19 is pressed at the moment, the button 19 extrudes the pressing ball 20, the pressing ball 20 enables the pressing ball 7 to expand through the air pipe, the pressing ball 7 drives the sliding plate 6 to descend, the sliding plate 6 drives the connecting rod 8 to swing, the connecting rod 8 drives the ratchet block 9 to be away from the ratchet groove, the ratchet block 9 drives the pawl 10 to be away from the ratchet groove, the pawl 10 does not limit the descending of the tensioning block 11 at the moment, the pressing ball 20 enables the air bag 14 to expand through the air exhaust pipe 21, the air bag 14 expands to drive the air pressure rod 15 to slide rightwards, the air pressure rod 15 drives the pull rod 16 to swing, the pull rod 16 drives the limiting block 17 to be clamped into the limiting groove, the limiting block 17 limits the rotation of the nut 13, the screw 12 is reversed, the screw 12 drives the nut 13 to descend, the nut 13 drives the tensioning block 11 to descend, the tensioning block 11 enables the chain 2 to be loosened, when the chain 2 is completely loosened, the button 19 is loosened, the pressing ball 20 is restored, the pressing ball 20 enters through the air inlet pipe 23, meanwhile, the baffle 18 can block the button 19 under the action of the internal clockwork spring to prevent mistaken touch.

In summary, according to the protection device for the chain type hoop based on the air pressure control, the screw 12 drives the nut 13 to ascend by rotating the screw 12, the nut 13 drives the tensioning block 11 to ascend, the tensioning block 11 drives the chain 2 to contract, when the chain 2 contracts to a certain degree, the chain 2 ascends relative to the fixed block 1, the chain 2 ascends to drive the tension ball 3 to expand, the tension ball 3 expands to enable the air bag 14 to contract through the air pipe, the air bag 14 contracts to enable the air pressure rod 15 to slide leftwards, the air pressure rod 15 drives the pull rod 16 to move leftwards, the pull rod 16 drives the limiting block 17 to be far away from the nut 13, and then the nut 13 and the tensioning block 11 are matched for use, so that the effects of preventing the bolt from being over-screwed and being long in service life are achieved. This protection device for chain clamp based on atmospheric control, through rotating screw rod 12, screw rod 12 drives nut 13 and rises, and nut 13 drives tensioning block 11 and rises, and tensioning block 11 drives guide arm 5 and rises, and guide arm 5 drives thorn piece 9 and rises, and thorn piece 9 drives pawl 10 and rises, and pawl 10 swings under the effect of thorn groove, and rethread pawl 10 uses with the cooperation of thorn piece 9 to reach the effect that can automatic locking device, application scope is more extensive.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.