阅读说明：本技术 一种可以自动上紧加固的五金闸刀 (Can tighten reinforced (rfd) five metals plug-in strip automatically ) 是由 何宇豪 于 2020-06-05 设计创作，主要内容包括：本发明公开一种可以自动上紧加固的五金闸刀,包括外壳,所述外壳的内底壁固定连接有支撑杆,所述支撑杆的顶部固定连接有导线,两个所述导线相对的一侧固定连接有弹形片,两个所述弹性片之间滑动连接有阀杆,所述弹簧片远离阀杆的一侧固定连接有空气弹簧,所述空气弹簧的侧面固定连接有补齐管,所述封堵板远离预存气箱的一侧设置有T形杆,所述T形杆远离封堵板的一侧设置有离心轮,所述离心轮的下方通过皮带转动连接有棘轮,所述预存气箱靠近阀杆的一侧穿插设置有挤压气管。该可以自动上紧加固的五金闸刀,通过空气弹簧与挤压杆的配合使用,从而达到了对闸刀内松弛的弹性导电片自动进行上紧,防止闸刀烧坏的意外发生的效果。(The invention discloses a hardware knife switch capable of being automatically tightened and reinforced, which comprises a shell, wherein a supporting rod is fixedly connected to the inner bottom wall of the shell, a lead is fixedly connected to the top of the supporting rod, elastic pieces are fixedly connected to one sides of the two opposite leads, a valve rod is connected between the two elastic pieces in a sliding manner, an air spring is fixedly connected to one side, away from the valve rod, of the spring piece, a replenishing pipe is fixedly connected to the side surface of the air spring, a T-shaped rod is arranged on one side, away from a pre-storage air box, of a plugging plate, a centrifugal wheel is arranged on one side, away from the plugging plate, of the T-shaped rod, a ratchet wheel is rotatably connected to the lower side of the centrifugal wheel through a belt, and an extrusion. This can tighten reinforced (rfd) five metals plug-in strip automatically, the cooperation through air spring and stripper bar is used to reached and tightened the elastic conducting strip that relaxes in the plug-in strip is automatic, prevented the effect that the accident that the plug-in strip burns out takes place.)

1. The utility model provides a can tighten reinforced (rfd) five metals plug-in strip automatically, includes shell (1), its characterized in that: the inner bottom wall of the shell (1) is fixedly connected with a supporting rod (2), the top of the supporting rod (2) is fixedly connected with a wire (3), one side of the two opposite wires (3) is fixedly connected with an elastic sheet (4), a valve rod (5) is connected between the two elastic sheets (4) in a sliding manner, one side of the spring sheet (4) far away from the valve rod (5) is fixedly connected with an air spring (6), the side of the air spring (6) is fixedly connected with a supplementing pipe (7), the side of the air supplementing pipe (7) is provided with an air baffle plate (11) in an inserting manner, the side of the air supplementing pipe (7) is fixedly connected with a delay pipe (21) below the air baffle plate (11), the inner meshing of the delay pipe (21) is connected with a screw rod (20), the bottom of the screw rod (20) is connected with an extruding rod (10) in a sliding manner, one side of the extruding rod (10) far away, the top of lever (9) is rotated and is connected with trace (8), one side sliding connection that extrusion stem (10) is close to valve rod (5) has gas tube (19), gas tank (15) are prestored to the top fixedly connected with of gas tube (19), prestore one side fixedly connected with bleeder line (14) that valve rod (5) were kept away from in gas tank (15), the inside of bleeder line (14) is provided with closure plate (13), one side that prestore gas tank (15) were kept away from in closure plate (13) is provided with T shape pole (12), one side that closure plate (13) were kept away from in T shape pole (12) is provided with centrifugal wheel (23), the below of centrifugal wheel (23) is rotated through the belt and is connected with ratchet (22), one side that prestore gas tank (15) are close to valve rod (5) alternates and is provided with extrusion trachea (17).

2. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: the interior of the extrusion air pipe (17) is connected with a stress rod (18) in a sliding way.

3. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: and an air bag (16) is fixedly connected to one side of the extrusion pipe (17) far away from the valve rod (5).

4. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: the stress rod (18) inflates the air bag (16) after being extruded by the valve rod (5), and the air bag (16) expands to fill the whole pre-air storage tank (15).

5. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: and a one-way air inlet pipe is arranged on the side surface of the air inflation pipe (19) in an inserting manner.

6. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: the side surface of the screw rod (20) is provided with an arc-shaped bulge, and the arc-shaped bulge is not contacted with one side of the gas baffle plate (11) in a squeezing force manner when the arc-shaped bulge is not moved.

7. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: the screw rod (20) and the delay tube (21) are in one-way downward meshing transmission.

8. The hardware knife switch capable of being automatically tightened and reinforced according to claim 1, is characterized in that: and centrifugal rods are inserted into the side surfaces of the centrifugal wheels (23).

Technical Field

The invention relates to the technical field of knife switch, in particular to a hardware knife switch capable of being automatically tightened and reinforced.

Background

The knife switch is also called knife switch or isolating switch, it is the simplest and widely used low-voltage electrical apparatus in the manual control electrical apparatus, the function of the knife switch in the circuit is: isolating the power supply to ensure the safety of circuit and equipment maintenance; and breaking the load, such as switching on and off a low-voltage circuit with low capacity infrequently or starting a low-capacity motor directly.

In the long-term use to the plug-in strip switch, connect and the elasticity conducting strip of fixed plug-in strip power-on pole can the condition that elasticity descends, both elasticity conducting strip reduce the clamp force of power-on pole, this is because elasticity conducting strip takes place cold and hot alternation around the circular telegram, and then produces the thermal barrier shrinkage phenomenon, consequently in case elasticity conducting strip descends the clamp force of conducting rod, just can influence area of contact between the two, and then probably causes the too big accident that takes place the plug-in strip of resistance and burns out.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the hardware switch blade capable of automatically tightening and reinforcing, which has the advantages of automatically tightening the loose elastic conducting strip in the switch blade, preventing the accident of switch blade burning, and the like, and solves the problem that the clamping force on the conducting rod is reduced because the elastic conducting strip in the switch blade is loosened in long-term use of the existing switch blade.

(II) technical scheme

In order to realize the purposes of automatically tightening the loose elastic conducting strip in the knife switch and preventing the knife switch from being burnt, the invention provides the following technical scheme: the hardware switch knife can be automatically fastened and reinforced, comprises a shell, wherein a supporting rod is fixedly connected with the inner bottom wall of the shell, a wire is fixedly connected with the top of the supporting rod, two elastic pieces are fixedly connected with one side, opposite to the wire, of the elastic piece, a valve rod is connected between the two elastic pieces in a sliding manner, an air spring is fixedly connected with one side, far away from the valve rod, of the spring piece, a supplementing pipe is fixedly connected with the side surface of the air spring, an air baffle is arranged on the side surface of the supplementing pipe in an inserting manner, a delay pipe is fixedly connected with the side surface of the supplementing pipe and below the air baffle, a screw rod is connected with the inner part of the delay pipe in a meshing manner, an extruding rod is connected with the bottom of the screw rod in a sliding manner, a lever is rotatably connected with one side, far away from the valve rod, the utility model discloses a valve rod, including gas tube, valve rod, shutoff board, T shape pole, centrifugal wheel, belt, ratchet wheel, gas tank, valve rod.

Preferably, a stress rod is slidably connected to the interior of the extrusion air pipe.

Preferably, the side of the extrusion pipe far away from the valve rod is fixedly connected with an air bag.

Preferably, the stress rod can inflate the gasbag after being extrudeed by the valve rod, and the gasbag can expand to filling up whole gas tank of prestoring, fully will prestoring the inside remaining gas of gas tank and arrange into the air supplement pipe.

Preferably, a one-way air inlet pipe is arranged on the side surface of the air charging pipe in an inserting mode, and air is supplied to the air charging pipe when the extrusion rod is reset.

Preferably, the side surface of the screw is provided with an arc-shaped bulge, and the arc-shaped bulge is not contacted with one side of the air baffle in a squeezing force manner when the screw is not moved.

Preferably, the screw rod and the delay tube are in one-way downward meshing transmission.

Preferably, a centrifugal rod is inserted into the side surface of the centrifugal wheel.

(III) advantageous effects

Compared with the prior art, the invention provides the hardware knife switch capable of being automatically tightened and reinforced, and the hardware knife switch has the following beneficial effects:

1. this can tighten reinforced (rfd) five metals plug-in strip automatically, the cooperation through air spring and extrusion stem is used, when using the plug-in strip, turns round the valve rod, makes valve rod extrusion flexure strip, and then leads to the flexure strip circular telegram of both sides.

Deformation can take place when the flexure strip is extruded, and the trace can be driven to keeping away from the valve rod direction, extrudees the lever, under the effect of the bracing piece that the lever side set up, the direction that the lower direction of lever is close to the valve rod removes, and then drives the extrusion stem in step, and at this in-process, the screw rod is upwards pushed up by the triangle arch that its side set up, and the arc arch that sets up through the screw rod side will keep off the gas board and extrude to being close to the valve rod direction, and then cut off the gas supplement pipe.

Meanwhile, the extrusion rod extrudes the gas in the steam filling pipe, the gas in the steam filling pipe is extruded to enter the pre-storage gas box, when the valve rod is twisted again, the valve rod is separated from the elastic sheet, so that the elastic sheet is reset, thereby leading the extrusion rod to move towards the direction far away from the valve rod, the teeth arranged on the side surface of the extrusion rod are meshed with the ratchet wheel to cause the ratchet wheel to rotate, the centrifugal wheel above is driven to rotate by the belt, under the action of centrifugal force, the centrifugal rod inserted into the side surface of the centrifugal wheel moves towards the direction far away from the wheel center, the centrifugal rod extrudes the side surface of the T-shaped rod, so that the T-shaped rod moves towards the direction close to the valve rod, further opening the plugging plate, the air release pipe starts to leak air, so that the air entering the pre-storage air box can be gradually released through the air release pipe, because the clearance that the shutoff board was opened is less, so need continuous gassing could release the gas that fills in the gas tank in advance completely.

When the extrusion rod stops when not returning to the initial position, the air discharging pipe stops discharging air to the pre-storage air box, meanwhile, the elastic force of the elastic sheet is reduced, the screw rod moves downwards when the extrusion rod returns, so that the air blocking plate opens the air supply pipe again, when the valve rod is twisted to be separated from the elastic sheet, the stress rod is extruded to move towards the pre-storage air box, the air bag is inflated through the extrusion air pipe, the pre-storage air box is gradually extruded through expansion of the air bag, residual air in the pre-storage air box is filled into the air spring through the air supply pipe above the pre-storage air box, the elastic force of the air spring is increased, the elastic sheet is extruded to be close to each other, and the elastic force of the elastic sheet is recovered, so that the effect of automatically tightening the loose elastic conducting sheet in the switch blade and preventing the switch blade from being burnt out is achieved.

2. This can automatic tighten reinforced (rfd) five metals plug-in strip, cooperation through time delay pipe and screw rod is used, at the torsion valve pole, make it break away from behind the flexure strip, the valve rod can continuously extrude the atress pole, when the screw rod moves down, because the screw rod is with the one-way meshing transmission downwards of time delay pipe, so the screw rod can not reset at once, consequently keep off the gas board and also can not release the air supplement pipe at once, because the gasbag can last the inflation, so prestore inside gas of gas tank can continuously receive the extrusion, treat that the extrusion pole resets and accomplishes the back, keep off the gas board and open the release with the air supplement pipe, prestore remaining gas in the gas tank just can be extruded and get into the air supplement pipe, thereby reached and prevented prestore inside gas of gas tank and passed through the effect of air release pipe release when getting.

Drawings

FIG. 1 is a schematic cross-sectional view of the entire structure of the present invention;

FIG. 2 is a schematic view of the overall transmission of the present invention;

FIG. 3 is a schematic cross-sectional view of the structure of the present invention;

FIG. 4 is a schematic view of the screw and the extrusion stem of the present invention;

FIG. 5 is a schematic cross-sectional view of a pre-storage gas tank of the present invention;

FIG. 6 is a schematic cross-sectional view of a structural bleed tube of the present invention;

FIG. 7 is a schematic cross-sectional view of the extruded air tube of the present invention.

In the figure: 1. the device comprises a shell, 2, support rods, 3, a lead, 4, an elastic sheet, 5, a valve rod, 6, an air spring, 7, an air supplementing pipe, 8, a linkage rod, 9, a lever, 10, an extrusion rod, 11, an air baffle plate, 12, a T-shaped rod, 13, a blocking plate, 14, an air discharging pipe, 15, a pre-stored air box, 16, an air bag, 17, an extrusion air pipe, 18, a stress rod, 19, an inflation pipe, 20, a screw rod, 21, a delay pipe, 22, a ratchet wheel, 23 and a centrifugal wheel.

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. 1-7, a hardware knife switch capable of being automatically tightened and reinforced comprises a housing 1, a support rod 2 is fixedly connected to the inner bottom wall of the housing 1, the support rod 2 is made of insulating plastic, so that equipment can be effectively prevented from being corroded, the service life of the equipment is greatly prolonged, the production cost is reduced, and the hardware knife switch plays an indispensable role in enterprises, a lead 3 is fixedly connected to the top of the support rod 2, elastic pieces 4 are fixedly connected to opposite sides of the two lead 3, a valve rod 5 is slidably connected between the two elastic pieces 4, an air spring 6 is fixedly connected to one side of the spring piece 4 far away from the valve rod 5, a supplementing pipe 7 is fixedly connected to the side of the air spring 6, an air baffle 11 is arranged on the side of the supplementing pipe 7 in an inserting manner, a delay pipe 21 is fixedly connected to the side of the air supplementing pipe 7 and below the air baffle 11, a screw 20 is engaged and, the side surface of the screw rod 20 is provided with an arc-shaped bulge and is not contacted with one side of the gas baffle plate 11 when not moving, the screw rod 20 and the delay tube 21 are in one-way downward meshing transmission, the bottom of the screw rod 20 is slidably connected with an extrusion rod 10, one side of the extrusion rod 10, which is far away from the valve rod 5, is rotatably connected with a lever 9, the top of the lever 9 is rotatably connected with a linkage rod 8, one side of the extrusion rod 10, which is close to the valve rod 5, is slidably connected with an inflation tube 19, the side surface of the inflation tube 19 is penetrated and provided with a one-way air inlet pipe, the inflation tube 19 is inflated when the extrusion rod 10 is reset, the top of the inflation tube 19 is fixedly connected with a pre-storage gas tank 15, one side of the pre-storage gas tank 15, which is far away from the valve rod 5, is fixedly connected with a gas discharge pipe 14, a blocking plate 13 is arranged inside the gas, the side of centrifugal wheel 23 alternates and is provided with the centrifugal pole, the below of centrifugal wheel 23 is connected with ratchet 22 through belt rotation, it is provided with extrusion trachea 17 to prestore one side that gas tank 15 is close to valve rod 5 to alternate, the inside sliding connection who extrudes trachea 17 has atress pole 18, the material of atress pole 18 is light plastics, can effectively prevent that equipment from being corroded, very big extension the service life of equipment, manufacturing cost is reduced, there is indispensable effect to the enterprise, atress pole 18 can aerify gasbag 16 after being extruded by valve rod 5, and gasbag 16 can expand to filling up whole gas tank 15 of prestoring, fully will prestore in inside remaining gas of gas tank 15 and arrange in the benefit trachea 7, one side fixedly connected with gasbag 16 that valve rod 5 was kept away from to extrusion pipe 17.

When the knife switch is used, the valve rod 5 is twisted, so that the valve rod 5 presses the elastic pieces 4, and the elastic pieces 4 on the two sides are electrified.

Deformation can take place when flexure strip 4 is extruded, trace 8 can be driven to keeping away from 5 directions of valve rod, extrude lever 9, under the effect of the bracing piece 2 that sets up to the side of lever 9, the direction that the lower direction of lever 9 is close to valve rod 5 removes, and then drive extrusion stem 10 in step, at this in-process, screw rod 20 is upwards pushed up by the triangle arch that its side set up, arc arch through the setting of screw rod 20 side will keep off gas board 11 and extrude to being close to 5 directions of valve rod, and then cut off air supplement pipe 7.

Meanwhile, the extrusion rod 10 extrudes the gas in the steam filling pipe, the gas in the steam filling pipe is extruded into the pre-storage gas tank 15, when the valve rod 5 is twisted again, the valve rod 5 is separated from the elastic sheet 4, so that the elastic sheet 4 is reset, thereby leading the extrusion rod 10 to move towards the direction far away from the valve rod 5, the teeth arranged on the side surface of the extrusion rod 10 are meshed with the ratchet wheel 22, the ratchet wheel 22 is caused to rotate, the centrifugal wheel 23 above is driven to rotate by the belt, under the action of centrifugal force, the centrifugal rod inserted into the side surface of the centrifugal wheel 23 moves towards the direction far away from the wheel center, the centrifugal rod extrudes the side surface of the T-shaped rod 12, the T-shaped rod 12 moves towards the direction close to the valve rod 5, further, the blocking plate 13 is opened, and the gas release pipe 14 starts to leak gas, so that the gas entering the pre-storage gas tank 15 is gradually released through the gas release pipe 14, since the gap opened by the blocking plate 13 is small, continuous deflation is required to completely release the gas filled in the pre-air storage tank 15.

When the squeezing rod 10 stops without returning to the initial position, the air release pipe 14 stops releasing air from the pre-air storage tank 15, and the elastic force of the elastic sheet 4 is reduced, and since the screw 20 will move downwards when the extrusion rod 10 is reset, so that the air baffle 11 opens the air supplement pipe 7 again, when the valve rod 5 is twisted and separated from the elastic sheet 4, the stress rod 18 is extruded and moves towards the direction close to the pre-air storage tank 15, further, the air bag 16 is inflated by pressing the air pipe 17, the air bag 16 is expanded to gradually press the pre-storage air tank 15, so that the residual air in the pre-storage air tank 15 is filled into the air spring 6 through the air supply pipe 7 above, the elasticity of the air spring 6 is increased, and then the elastic pieces 4 are extruded to be close to each other, so that the elasticity of the elastic pieces 4 is recovered, and the effects of automatically tightening the loose elastic conducting pieces in the knife switch and preventing the knife switch from being burnt out are achieved.

At torsion valve stem 5, make it break away from behind the flexure strip 4, valve stem 5 can continuously extrude atress pole 18, when screw 20 moves down, because screw 20 and the transmission of delaying time 21 one-way meshing downwards, so screw 20 can not reset immediately, consequently keep off gas board 11 and can not release air supplement pipe 7 immediately yet, because gasbag 16 can last the inflation, so prestore inside gas of gas tank 15 can continuously receive the extrusion, treat that the extrusion stem 10 resets and accomplish the back, air board 11 opens air supplement pipe 7 and releases, prestore remaining gas in the gas tank 15 just can be extruded and get into air supplement pipe 7, thereby reached and prevented prestore inside gas of gas tank 15 and passed through the effect that air release pipe 14 released simultaneously when getting into air supplement pipe 7.

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.