BG100601U - Winch - Google Patents

Abstract

The winch is designed to open and shut the ventilation valves in fire-extinguishing systems. It increases the reliability of meshing-unmeshing of the wormscrew-worm wheel system. The unmeshing device of the winch is designed as a two-worm lever (19) manually or pneumatically driven where its axis of revolving is included in space limited by two parallel planes - both perpendicular to the plane of assembly of the winch. One of the parallel planes includes the axis of revolution of the wormscrew wheel (7), and the other plane includes the axis of revolution of a cantelever bearing yoke (9). The axis of rotation of the two-arm lever (19) favourably matches the axis of rotation of yoke (9). The unmeshing device does not optionally include a one-arm lever (24) for electromagnetic actuation, fitted in the plane parallel to the main surface of the two-arm lever (19) the axis of revolution of which coincides with the axis of revolution of the wormwheel (7). The winch has members for manual, pneumatic and electromagnetic unmeshing.\!

Description

Winch

Technical field.

The object of the present utility model is a winch intended primarily for opening and closing ventilation valves in fire hazardous systems.

BACKGROUND OF THE INVENTION

No. 2,605,620, known from French Patent Description, has a support plate with a rotor drum on it whose axis is parallel to the wall mounting plane. A rope is wound on the drum, which passes through a guide roller system and is used to open and close the ventilation valve. The drum is attached to a worm wheel engaged by a worm shaft. of the worm wheel.The fork is locked in a locked position by a single-lever clamped by a flat spring.To disengage / release / use a two-lever clamped in the clamped position by another flat pruzhina.Sistemata released by overcoming the resistance of the second spring, resulting in the release of a button blocking sistema.Sistemata can also be released through additional leverage, driven by the anchor of the electromagnet when released.

The technical nature of the utility model

According to the present utility model, the winch also has a drum with a twisted rope mounted on it in the body of the winch. The drum is driven by a worm wheel connected thereto, which is engaged by a worm shaft actuated by a handle. The worm shaft is mounted in a cantilever bearing, a pivot bearing which is held in a secured position by a prong.

The essence of the solution according to the present utility model is that the release / release system is constructed as a two-lever lever designed to act both manually and pneumatically, the axis of rotation of which is enclosed in a space bounded by two parallel planes, both perpendicular to the winch mounting plane, one of the parallel planes including the axis of rotation of the worm wheel and the other plane including the axis of rotation of the fork; the axis of rotation of the two-hand lever favorably coincides with the axis of rotation of the bearing fork. Optionally, the winch may have in the coupling device a one-way electromagnetic action lever positioned in a plane parallel to the main surface of the two-handed lever whose axis of rotation coincides of the worm wheel.The two-hand lever that releases the thumb has a support element for pneumatic cleavage.The support element rests on the piston rod of the pneumatic servo cylinder mounted on the mounting tool. ra.Varhu other side of the lever there is an element of manual separation / release /.

The one-way lever is branched at the end near the axis of rotation, while the other end of the lever has a tooth connecting the gripping / contact / plate, which is the intermediate part between the one-way lever and the electromagnet.

The clamping plate is pivotally mounted on the electromagnetic carrier, which is attached to the mounting support and has two surfaces perpendicular to each other, one of which serves as a heel / support surface / for the one-way lever, while the other has a lining that is attracted by the electromagnet. The gripping plate also has a spring attached to it, the other end of which is attached to the electromagnetic carrier.

The elastic member which extends the one-way lever to the position in which it acts on the two-lever lever, which in turn releases the locking pin, is constructed in the form of a coil spring, one end of which is attached to the one-way lever while its other end is attached. to the clamping device in the mounting support.

The thumb that carries the cantilever fork is held in place by an elastic element designed as a coil spring, while the elastic member that tightens the ring to a cleavage position is constructed as a coil spring, one end of which is attached to the cantilever fork until its other end is attached to the clamping device in the mounting support; it is spring

located at an acute angle to the axis of the worm shaft.

In another embodiment, the worm shaft is mounted in a cantilever bearing fork whose axis of rotation is included in a space limited by two parallel planes, both perpendicular to the winch mounting plane, one of the parallel planes including the axis of rotation of the winch. the worm wheel and the other plane includes the axis of rotation of the worm shaft in the engagement position. The worm shaft is pressed against the worm wheel and is held in the engagement position by the thumb supporting the fork. The thumb has a horse ash beam in the form of a two-arm lever with arms perpendicular to each other. The element releasing the thumb is constructed as a two-arm lever on which both arms are arranged along each other and the axis of rotation coincides with the axis of rotation of the bearing fork.

The fork has a projection with a support surface located at the other end of the fork diagonal with respect to the fork axis of the fork.

The thumb is shaped like a groove profile and is equipped with rollers mounted inside the angular profile that rests on the support surface of the projection of the fork and the thumb is pivotally mounted on a stud.

In another embodiment of the utility model, the worm shaft is mounted in a bearing fork whose axis of rotation is positioned outside the space limited by both.

parallel plates, both perpendicular to the winch mounting plane, one of the parallel planes including the axis of rotation of the worm wheel while the other plane includes the axis of rotation of the worm shaft in the engagement position. The worm shaft is pressed against the worm wheel. holds in position of engagement by the thumb carrying the fork.The thumb has an outer cantilever beam in the form of a single-lever.The element releasing the thumb has the form of a two-lever, on which both arms are azpolozheni along each other.

The thumb has the shape of a grooved profile attached to an angular profile and along with the outer cantilever beam is pivotally mounted on a pin-shaped axis where the thumb has two support surfaces perpendicular to one

with respect to the other, one surface of which is defined on the face of the chute profile and the other surface is defined on the face of one of the arms having an angular profile which is arranged parallel to said face of the chute.

The fork has rollers resting on the support surfaces of the thumb, and the axis of rotation of the rollers is positioned perpendicular to the axis of rotation of the worm shaft.

An advantage of the solution according to the present utility model is the simplicity of the design and the resulting reliability of engagement and securing of the worm wheel-worm shaft system. The release element can be mounted on any

The method was chosen, enabling the winch to be constructed in many variants: with manual cleavage, with manual and pneumatic cleavage, with manual and electromagnetic cleavage, and with manual, pneumatic and electromagnetic cleavage at the same time.

Description of the attached figures.

The solution of this utility model can be seen in the exemplary embodiment shown in the figures, where figure 1 represents the lateral view of the winch, figure 2 represents the longitudinal profile of the winch, figure 3 shows the type of top of the winch, figure 4 presents the lateral view of the two-arm lever, Fig. 5 represents the lateral view of the single-lever, Fig. 6 represents the lateral view of the gripping plate; Fig. 7 represents the lateral view of one variant of the winch;

Examples of implementation of the utility model.

In the winch housing 1, including mounting support 2, a drum 4 is mounted in such a way that it rotates in the body

3. A rope 5 is wound on the drum 4, which passes through a sleeve 6. The drum 4 is connected to a worm wheel 7 mounted on the axis of the drum. The worm wheel 7 is engaged by a worm shaft 8 having a hexagonal end for engagement with a handle. .Worm shaft 8 is mounted in such a way that it rotates in the cantilever bearing fork 9.

The fork 9 is pivotally coupled so that it can have a swing amplitude with respect to the worm wheel 7.

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The axis of rotation of the fork 9 is included in the space bounded between two parallel plates, both perpendicular to the winch mounting plane, one of the parallel planes including the axis of rotation of the worm wheel 7 and the other plane including the axis of rotation of the winch. worm shaft 8 in engagement position.

The fork 9 has a projection 10 with a support surface a,

located at the other end of the diagonal of the fork 9, relative to the axis of rotation of the fork. The axis of rotation of the fork 9 takes the form of a stud 11.

The worm shaft 8 mounted in the bearing fork 9 is pressed against the worm wheel 7 and is maintained in the engagement position by means of a pin 12 carrying the support surface a of the projection 10 on the fork 9.

The pin 12 is mounted on a stud 13 acting as its axis of rotation. The pin 12 has the shape of a recessed profile and has an outer cantilever beam 14. The outer cantilever beam 14 of the thumb 12 has the form of a two-arm lever with mutually perpendicular arms. The thumb 12 has rollers 15, internally mounted thereon, which rest on the support surface a of the projection 10 on the bearing fork 9.The axis of rotation of the rollers 15 is arranged perpendicular to the axis of rotation of the worm shaft 8.

The toe 12 is held in the engagement position by an elastic element having the form of a helical spring called the first helical spring 16. The elastic member which stretches / pulls / forks 9 to

the release / release position // takes the form of a coil spring, called a second coil spring 17, one end of which is attached to the fork 9, while the other end is attached to a clamping device in the mounting support 2, and the spring is disposed obliquely angle to the axis of the worm shaft 8.

On the axis 18 is a hinged two-arm lever 19, the end of which lies on the outer cantilever beam 14 of the thumb 12. The arms of the two-arm lever 19, which have the shape of

flat belts are perpendicular to each other.The axis of rotation 18 of the two-arm lever 19 coincides with the axis of rotation of the bearing fork 9.

The outer cantilever beam 14 and the lever 19 form a two-lever system, both of which are L-shaped.

The two-arm lever 19 which releases the pin 12 via the outer cantilever beam 14 has a support element 20 whose surface is perpendicular to the main surface of the lever 19 and whose edge (side) is parallel to the main edge of the flat web. the piston rod 21 of the pneumatic servo cylinder 22 mounted on the mounting support 2.

On the other side, with respect to the support element 20 of the two-arm lever 19, there is a manual release element 23 whose surface is perpendicular to the main surface of the arm 19 and whose edge is parallel to the main surface of the flat web.

Parallel to the lever arm 19 which releases

the pin 12 via the outer cantilever beam 14, a single lever 24 may be mounted whose axis of rotation coincides with the axis of rotation of the worm wheel 7. The single lever is actuated by the support / pusher / element 20 of the two-lever 19. The elastic element which pulls the single-lever to the position of engagement with the two-lever 19, constitutes a third coil spring 25, one end of which is attached to the single-lever 24, while its other end is attached to a gripping device in the mounting support 2.

The one-way lever 24 has a branched end b near the axis of rotation.

The other end of the single lever 24 has a tooth 26 connecting the gripping plate 27. The gripping plate 27 has two perpendicular surfaces. It is an intermediate element between the lever 24 and the electromagnet 29. The gripping plate 27 is pivotally disposed on the carrier 28 of the electrode. which is attached to the mounting support 2. One of the surfaces of the gripping plate 27 serves as a heel / support surface / for the one-way lever 24, while the other has a lining 30 which is attracted by the electromagnet 29. The elastic element which pulls the clamping plate 27 to the engagement position is constructed as a coil spring 31, one end of which is attached to the clamping plate 27 and its other end is attached to the electromagnet magnet carrier 28.

Way of acting.

After the operator pulls the member 23 of the two-arm lever 19 toward him, the other end of the lever presses the outer cantilever beam 14 of the pin 12, thereby overcoming the spring resistance 16. The pin 12 rotates about the pin 13 and its rollers 15. displaced from the support surface a of the projection 10. Under the influence of the force exerted by the second spring 17, the bearing fork 9 rotates about its pin 11 and deviates away from the worm wheel 7. The worm wheel system 7 - the worm shaft 8 is cleaved / released. /.

As a result, the rope 5 can evolve freely from the drum 4, releasing the blockage of the ventilation valve. The valve opens under the action of, for example,

pressurized actuator.

When using a pneumatic servo cylinder that can be mounted in the winch, the piston rod 21 at the same pressure presses the support element 20 of the two-arm lever 19, which upon rotation releases the thumb 12 via the outer cantilever beam 14. As a result, the worm shaft system 8 - worm wheel 7 is cleaved / released /.

When using an electromagnet 29 that can be mounted in the winch in addition to a single lever 24 and a clamping plate 27, a power outage causes the lining 30 to be released from the clamping plate 27 and to release the lug 26 of the single lever 24. The third spring 25 causes the single lever 24 to rotate and the gripping plate 27 is displaced. The single lever 24 presses the support element 20 of the double lever 19, forcing it to rotate and uncouple the worm shaft system 8 - the worm wheel 7, through the outer cantilever beam 14 of the thumb 12.

The spring 31 holds the clamping plate 27 in a deflected position, thus allowing the system to restart

to catch on.

The worm shaft system 8 - the worm wheel 7 is engaged again by a handle after the resistance of the second spring has been overcome.

The winch release device may be mounted in any chosen manner. In any case, it includes a two-arm lever 19 actuated by the outer cantilever beam 14 of the thumb 12. In addition, the device may comprise pneumatic release / release elements /, which include a cylinder 22 with a piston rod 21 of a pneumatic

a servo cylinder, in addition to a power system, or may comprise electromagnetic cleavage elements, which include electromagnet 29, a single lever 24, and a clamping plate 27. It is also possible to mount elements for both pneumatic and electromagnetic cleavage.

Another example of a winch variant according to the present utility model is shown in FIGS. 7 and FIG. 8. In this embodiment, the element releasing the cantilever bearing fork 109 of the worm shaft 108 to the cleavage position is in the form of a two-arm lever 119 pivotally disposed on its axis

118, both arms of the two-arm lever extending along each other.

The axis 118 serving as the axis of rotation of the two-arm lever 119 is located in a space bounded by two parallel planes, both perpendicular to the plane of installation of the winch and including the axis of rotation of the worm wheel 107 and the axis of rotation of the bearing fork 109, which axis has the form of a stud 111.

One end of the two-arm lever 119 rests on the outer cantilever beam 114 of the thumb 112. The shoulder of the two-arm lever that rests on the outer cantilever beam 114 of the thumb 112 is cropped (has a notch).

The bearing fork 109 is locked by a connecting element 110. The fork 109 is pivotally mounted on its mounting pin 111 so that it can deviate away from the worm wheel 107. The worm shaft 108 that is mounted in the bearing fork 109 is pressed against the worm. a wheel 107 in a locked position by means of a thumb 112 which carries the connecting element 110 of the bearing fork 109.

The toe 112 is pivotally disposed on its stud 113. The toe 112 has an angular profile with a fixed groove profile that partially closes the angular profile. The toe 112 has two support surfaces perpendicular to each other, one surface of which is defined on the front face al "of the groove profile and the other surface is defined on the face a2 of one of the arms having an angular profile which is parallel to the face of the groove

profile al mentioned above. An external cantilever beam 114, which is in the form of a single lever and which is actuated by the thumb 112, is also mounted on stud 113.

The pin 112 is actuated by rollers 115 mounted in the connecting element 110, which are immobilized in a locked position by the support surfaces al and a2 of the pin 112. The axis of rotation of the rollers 115 is positioned perpendicular to the axis of rotation of the worm shaft 108.

The toe 112 is held in the engagement position by an elastic member having the form of a helical spring called the first helical spring 116.

In this embodiment, by manually clamping the member 123 of the two-arm lever 119, the other end of the lever compresses the outer cantilever beam 114 of the thumb 112, thereby overcoming the resistance of the first spring 116 and releasing the thumb 112. Under the influence of forces, applied by the second spring 117, the bearing fork 109 rotates on its stud 111 and deflects away from the worm wheel 107. The worm wheel system 107 - the worm shaft 108 is cleaved / released /.

When a pneumatic servo cylinder and / or electromagnet is used, the winch is released analogously to the first embodiment described, with the single lever 124.

Also in this second embodiment, the winch release device may be mounted in any way selected. In any case, it comprises a double lever 119,

OR *.

1 ^ · actuated with outer cantilever beam 114.

In addition, the device may comprise elements for pneumatic splitting or electromagnetic splitting. It is also possible to mount components for both pneumatic and electromagnetic separation.

The examples presented above do not limit the implementation of the utility model.

Claims (12)

Patent Claims A winch specially designed for opening and closing movable ventilation valves in fire-fighting systems, comprising a housing / 1 /, where a drum / 4 / with a twisted rope / 5 / mounted in the body / 3 / and driven by an attached worm is included wheel (7), secured by a worm shaft (8), releasable (releasable) by means of a system of levers and springs, mounted in a cantilever fork bearing (9) and held in a secured position by a pin (12), characterized in that the release device is designed as a two-hand lever / 19 / intended for manual and pneumatic operation you, whose axis of rotation / 18 / is included in the space bounded by two parallel plates and two perpendicular to the winch mounting plane, one of the parallel planes including the axis of rotation of the worm wheel / 7 / and the other plane includes the axis of bearing fork bearing / 9 /; the axis of rotation / 18 / of the two-lever / 19 / favorably coincides with the axis of rotation of the bearing fork / 9 / and in addition, the release device optionally comprises a single-lever / 24 / actuated by an electromagnet (29) arranged in a plane parallel to the main the surface of the two-arm lever / 19 / whose axis of rotation coincides with the axis of rotation of the worm wheel / 7 /. Winch according to claim 1, characterized in that the two-arm lever (19) releasing the thumb (12) has a support element (20) for pneumatic cleavage resting on the piston rod (21) of a pneumatic servo cylinder (22) that is attached to the mounting support (2) and there is, in the position opposite to the support element (20), a manual release element (23). Winch according to any one of claims 1 to 2, characterized in that the one-way lever (24) has a branched end (b) near the axis of rotation, while the other end of the one-way lever (24) has a tooth (26) connecting the clamping plate (27); the gripping plate (27) is an intermediate portion between the one-way lever (24) and the electromagnet (29). Winch according to claim 3, characterized in that the gripping plate (27) is pivotally mounted on the electromagnet carrier (28) attached to the mounting support (2) and has two surfaces perpendicular to each other, one of which serves as the heel for the one-way lever (24), while the other has a lining (30) which is attracted by the electromagnet (29) and further characterized in that the gripping plate also has a spring (31), one end of which is attached to the gripping plate / 27 /, while the other end is attached to n electromagnet magnet (28) / 29 /. A winch according to claim 3 or 4, characterized in that the elastic member which pulls the one-way lever (24) to the position where it acts on the two-lever lever (19), thereby releasing the thumb (12), has the shape of a coil spring / 25 /, one end of which is attached to the one-way lever / 24 /, while the other end is. attached to a gripping device in the mounting support / 2 /. Winch according to any one of claims 3 to 4, characterized in that the finger (12) supporting the bearing fork (9) is held in the engagement position by an elastic element shaped as a first coil spring (16), while the elastic member which tightens the ring / 9 / to the cleavage position is formed as a second coil spring / 17 /, one end of which is attached to the ring / 9 /, while its other end is attached to the gripping device in the mounting support / 2 / and the spring is inclined at an acute angle to the axis of the worm shaft (8). Winch according to any one of claims 1 to 6, characterized in that the worm shaft (8) is mounted in the cantilever bearing fork (9), whose axis of rotation is included in the space bounded by two parallel planes, both perpendicular to the winch mounting plane, one of the parallel planes including the axis of rotation of the worm wheel / 7 / and the other plane includes the axis of rotation of the worm shaft / 8 / in the engagement position and where the worm shaft / 8 / is pressed from the worm wheel / 7 / in the engaged position is by means of a pin / 12 / bearing the bearing fork / 9 / having an outer cantilever beam / 14 / in the form of a two-arm lever / 19 / with mutually perpendicular arms, while the element releasing the thumb / 12 / has the form of a two-arm lever / 19 / with arms perpendicular to each other and whose axis of rotation / 18 / coincides with the axis of rotation of the bearing fork / 9 /. Winch according to claim 7, characterized in that the bearing fork (9) has a projection (10) with a support surface (a) located at the other end of the diagonal of the bearing fork (9) with respect to the axis of rotation of the bearing. the fork / 9 /. Winch according to Claims 7 to 8, characterized in that the finger (12) having the shape of a groove profile is provided with rollers (15) located inside the groove profile which lie on the support surface (a) of the protrusion (10). / on the bearing fork / 9 /, where the thumb / 12 / is pivotally mounted on a stud / 13 /. Winch according to any one of claims 1 to 6, characterized in that the worm shaft (108) is mounted in the bearing fork (109), whose axis of rotation is positioned in a space bounded by two parallel planes and both perpendicular to the winch mounting plane, one of the parallel plates including the axis of rotation of the worm wheel / 107 / and the other plane includes the axis of rotation of the worm shaft / 108 / when in the engagement position; it is pressed against the worm wheel / 107 / i is maintained in the position of engaging with the thumb (112) carrying the bearing fork (109) and where the thumb (112) has an outer cantilever beam (114) in the form of a one-lever, while the member releasing the thumb (112) is in the form of a two-lever (119), whom both arms are located along each other. Winch according to claim 10, characterized in that the toe (112) has the shape of a groove profile attached to the angular profile and, in addition to the outer cantilever beam (114), is mounted so as to rotate an axis of rotation which is a stud / 113 /, where the finger / 112 / has two support surfaces perpendicular to each other, one surface of which is defined by the face (a1) of the groove profile and the other surface is defined by the face (a2) of one of shoulders with an angular profile parallel to said groove face country / a1 /. Winch according to any one of claims 10 to 11, characterized in that the bearing fork (109) has rollers (115) resting on support surfaces (a1), (a2) of the thumb (112) and that the axis of rotation of the rollers (115) are perpendicular to the axis of rotation of the worm shaft (108).