CN215485475U

CN215485475U - Falling protector and casement window

Info

Publication number: CN215485475U
Application number: CN202120453692.0U
Authority: CN
Inventors: 陈满林
Original assignee: Foshan Aosenmu Door & Window Technology Co ltd
Current assignee: Foshan Aosenmu Door & Window Technology Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-01-11
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses a falling protector and a casement window, and belongs to the field of doors and windows. This safety hook includes: the first fixing piece is provided with a positioning shaft and a first fixing part which can be connected with the section bar, two ends of the first fixing piece protrude towards the direction far away from the first fixing part to form a connecting part, and two ends of the positioning shaft are connected with the connecting part; the second fixing piece is provided with a second fixing part which can be connected with the section bar, the second fixing piece is provided with an arc concave surface opposite to the second fixing part, and the arc concave surface is matched with the positioning shaft; and two ends of the steel wire rope are connected with the first fixing piece and the second fixing piece. The casement window comprises a first section bar, a second section bar and the falling protector; the first fixing piece is connected with the first section bar; the second fixing piece is connected with the second section bar. When the window body is rotated to close the window, the positioning shaft is in contact with the arc-shaped concave surface and is buckled to form a closer, so that stronger sealing pressing force can be provided, and the sealing performance of the window can be improved. The falling protector has the functions of both the falling protector and the fastening device.

Description

Falling protector and casement window

Technical Field

The utility model relates to the technical field of doors and windows, in particular to a falling protector and a casement window.

Background

The existing falling protector for the window generally comprises a steel wire rope and two fixing pieces arranged on the steel wire rope, when the falling protector is used, the two fixing pieces are fixed on the window body and the window frame respectively, and when the connecting mechanism of the window body is damaged or falls off like a hinge, a four-bar mechanism and the like, the falling protector arranged between the window body and the window frame can play a role in preventing the window body from falling.

However, the existing falling protector is simple in structure, basically only plays a role in preventing a window body from falling, and is single in function.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a fall arrester that solves one or more of the problems set forth in the prior art, and provides at least one useful alternative or creation.

In addition, the utility model also provides a casement window.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides in a first aspect a fall arrester comprising:

the first fixing piece is provided with a positioning shaft and a first fixing part used for being connected with the section bar, and two ends of the first fixing piece respectively protrude towards the direction far away from the first fixing part to form a connecting part; two ends of the positioning shaft are respectively connected with the connecting part;

the second fixing piece is provided with a second fixing part used for being connected with the sectional material, the second fixing piece is provided with an arc-shaped concave surface, and the arc-shaped concave surface and the second fixing part are oppositely arranged; the arc concave surface is matched with the positioning shaft;

and one end of the steel wire rope is connected with the first fixing piece, and the other end of the steel wire rope is connected with the second fixing piece.

The utility model has at least the following beneficial effects: first mounting can be connected with the section bar of window through first fixed part, and the second mounting can be connected with another section bar of window through the second fixed part, and wire rope's both ends are connected with first mounting and second mounting respectively to make this safety hook couple together two section bars, play the effect that prevents that the window form of preferred from falling. The first fixing piece is provided with a positioning shaft, and the positioning shaft is connected with the connecting part so as to enable the positioning shaft to be arranged opposite to the first fixing part; the second mounting is equipped with location axle assorted arc concave surface, and the arc concave surface sets up with the second fixed part is relative, rotates the window form when closing the window when the user, and the second mounting is relative setting with first mounting for location axle and arc concave surface contact produce the buckle effect, thereby form the locking ware, can provide stronger sealed packing force, are favorable to improving the sealing performance of window. The falling protector provided by the utility model has the functions of the falling protector and the fastening device at the same time.

As a further improvement of the technical scheme, the falling protector also comprises a rope connector; the second fixing piece is provided with a clamping hole, the clamping hole is matched with the rope joint, and one end of the steel wire rope penetrates through the clamping hole and is connected with the rope joint; the other end of the steel wire rope is connected with the positioning shaft.

The second mounting sets up the joint hole, passes joint hole and rope joint connection when wire rope's a tip, and it is downthehole at the joint through rope joint card, makes wire rope's one end be connected with the second mounting, and wire rope's the other end and location hub connection, the screens effect in the locking device not only is played to the location axle, but also has acted as another rope joint of wire rope, makes wire rope be connected with first mounting, simplifies the overall structure of safety hook, reduces material cost.

As a further improvement of the above technical solution, two connecting portions of the first fixing member are respectively provided with a first connecting hole and a second connecting hole, and two ends of the positioning shaft are respectively detachably mounted in the first connecting hole and the second connecting hole. In first mounting, connecting portion are equipped with first connecting hole, and another connecting portion are equipped with the second connecting hole, and two tip of location axle correspond respectively and can dismantle with the internal face of first connecting hole, the internal face of second connecting hole and be connected, make things convenient for the dismouting of location axle to reduce the installation degree of difficulty of safety hook.

As a further improvement of the technical scheme, the falling protector also comprises a buffer sleeve; the positioning shaft comprises a head part, a shaft part and a rope connecting part which are sequentially connected, and the diameters of the head part, the shaft part and the rope connecting part are sequentially reduced; the rope connecting part is connected with the steel wire rope; the buffer sleeve is connected with the first connecting hole in a clamping mode, and is provided with a through hole which is matched with the shaft part; the second connecting hole is matched with the rope connecting part.

The location axle is including the head, axial region and the rope connecting portion that connect gradually, and their diameter diminishes in proper order to, the buffering cover be equipped with axial region assorted through-hole, second connecting hole and rope connecting portion phase-match, thereby can utilize the head card to sheathe in the buffering, axial region card is on the second connecting hole, make the location axle stably peg graft in first mounting and do not rock, and can take the location axle out, thereby make things convenient for the installation work of safety hook to go on fast. Set up the cushion collar between first connecting hole and axial region, can play certain buffering cushioning effect.

As a further improvement of the technical scheme, the buffer sleeve is a rubber sleeve. And a rubber sleeve is selected as a buffer sleeve, so that the shock absorption effect is better.

As a further improvement of the above technical solution, the first fixing portion is provided with a first mounting hole. The setting of first mounting hole is conveniently through the fastener with first mounting quick installation on window section bar.

As a further improvement of the above technical solution, the second fixing portion is provided with a second mounting hole. The setting of second mounting hole makes things convenient for through the fastener with second mounting quick installation on window section bar.

In addition, a second aspect of the present invention provides a casement window including: the first section bar, the second section bar and the falling protector are arranged on the upper portion of the frame; the first fixing piece is connected with the first section bar; the second fixing piece is connected with the second section bar.

Set up the safety hook between the first section bar of flat-open window and second section bar, install at first section bar through first mounting, the second mounting is installed at the second section bar, can realize preventing the purpose that the window form falls, moreover, this safety hook possesses the effect of tight closure ware, after the window is closed, the second mounting is relative setting with first mounting, make location axle and arc concave surface contact and produce the buckle effect, thereby form the tight closure ware, can provide stronger sealed packing force, and then improve the sealing performance of window.

As a further improvement of the above technical solution, the casement window further includes a screw; the first section bar is provided with a first screw hole, and the screw penetrates through the first mounting hole and is connected to the first screw hole; the second section bar is provided with a second screw hole, and the screw penetrates through the second mounting hole to be connected with the second screw hole. The first fixing piece is arranged on the first section bar, and the second fixing piece is arranged on the second section bar in a screw connection mode, so that the falling protector can be conveniently disassembled and maintained.

As a further improvement of the above technical solution, the casement window further includes a connecting piece and a locking piece; the first section bar is provided with a first clamping groove, the first clamping groove is provided with the locking block, and the connecting piece penetrates through the first mounting hole and is connected to the locking block; the second section bar is provided with a second clamping groove, the second clamping groove is provided with the locking block, and the connecting piece penetrates through a second mounting hole to be connected with the locking block.

First section bar sets up first draw-in groove, the second section bar sets up the second draw-in groove, and, utilize the connecting piece to pass first mounting hole and second mounting hole respectively and the locking piece corresponds to be connected, then correspond the locking piece respectively and put into first draw-in groove and second draw-in groove, and through the locking piece of screwing, make first mounting and first section bar fixed mutually, the second mounting is fixed mutually with the second section bar, play certain positioning action, convenient follow-up screw connection that carries on, and can strengthen between first mounting and the first section bar, the connectivity between second mounting and the second section bar, thereby make this safety hook install more firmly.

Drawings

The utility model is further described with reference to the accompanying drawings and examples;

FIG. 1 is an exploded view of one embodiment of the fall arrester provided by the present invention;

FIG. 2 is a perspective view of the safety hook of the present invention, with one embodiment in an open position;

FIG. 3 is a perspective view of the safety brake device of the present invention with one embodiment of the safety brake device in a closed position;

FIG. 4 is a rear view of the configuration of the first attachment member of the fall arrester provided in the present invention;

FIG. 5 is a cross-sectional view of the fall arrester provided by the present invention, the first mount being cut along the YZ plane;

FIG. 6 is a right side view of the configuration of the second attachment member of the fall arrester provided in accordance with the present invention;

FIG. 7 is a cross-sectional view of section A-A of FIG. 6;

fig. 8 is a schematic structural view of an embodiment of a casement window provided by the present invention.

The drawings are numbered as follows: 100. a first fixing member; 110. a first connection hole; 120. a connecting portion; 200. a second fixing member; 210. a clamping hole; 220. an arc-shaped concave surface; 230. a screw mounting hole; 240. a connector mounting hole; 300. positioning the shaft; 310. a head portion; 320. a shaft portion; 330. a rope connecting portion; 400. a wire rope; 410. a rope joint; 510. a first profile; 511. a first card slot; 520. a second profile; 521. a second card slot; 610. a screw; 620. a connecting member; 630. a locking block; 700. a buffer sleeve; 710. a claw is provided.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

It should be noted that, in the drawings, the X direction is from the rear side of the safety catch to the front side; the Y direction is from the left side of the safety hook to the right side; the Z direction is directed from the lower side of the safety brake device to the upper side.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 8, several embodiments of the safety hook and the casement window of the present invention will be described below.

As shown in fig. 1 to 7, an embodiment of the present invention provides a fall arrester, including: a first mount 100, a second mount 200, and a wire rope 400.

The first fixing member 100 is provided with a positioning shaft 300 and a first fixing portion for connecting with a profile, and two ends of the first fixing member 100 are respectively protruded towards a direction away from the first fixing portion to form a connecting portion 120. The first fixing portion is provided with a plurality of first mounting holes spaced along the Z-axis, and then the first fixing member 100 can be quickly mounted on the window profile using a fastening member.

In this embodiment, the first fixing portion is located on the right side surface of the first fixing member 100, and the first fixing portion and the first fixing member 100 are integrally formed. The connecting portion 120 is located on the left side surface of the first fixing member 100, and the connecting portion 120 and the first fixing member 100 are integrally formed, and the whole is U-shaped when viewed from the rear. The first fixing member 100 is made of a metal material.

Both ends of the positioning shaft 300 are connected to the connection parts 120, respectively. The positioning shaft 300 is a cylindrical shaft. The positioning shaft 300 may be, but is not limited to, fixed to the connection part 120 by welding. In this embodiment, the axis of the positioning shaft 300 is vertical, and the positioning shaft 300 is made of metal.

The second fixing member 200 is provided with a second fixing portion for connecting with a profile, the second fixing member 200 is provided with an arc-shaped concave surface 220, and the arc-shaped concave surface 220 and the second fixing portion are oppositely arranged. The second fixing portion is provided with a plurality of second mounting holes spaced along the Z-axis, and then the second fixing member 200 can be quickly mounted on the window profile using the fastening member.

In this embodiment, the second fixing portion is located on the left side surface of the second fixing element 200, and the second fixing portion and the second fixing element 200 are integrally formed. The arc-shaped concave surface 220 is located on the right side of the second fixing member 200, that is, the right side of the second fixing member 200 is left-concaved to form the arc-shaped concave surface 220, and two ends of the arc-shaped concave surface 220 extend from top to bottom. The second fixing member 200 is made of a metal material. The arc concave surface 220 is matched with the positioning shaft 300, and when the second fixing member 200 is arranged opposite to the first fixing member 100, the arc concave surface 220 can contact with the positioning shaft 300.

When the user rotates the window form in order to close the window, the second mounting can be relative setting with first mounting for location axle 300 contacts and produces the buckle effect with arc concave surface 220, thereby forms the obturator, can provide stronger sealed packing force, and with hinge (hinge) or sliding support cooperation, makes the sealing strip elastic deformation of window, and then improves the sealing performance of window.

One end of the wire rope 400 is connected to the first fixing member 100, and the other end is connected to the second fixing member 200. The wire rope 400 may be fixed to the first and

second fixtures

100 and 200 by, but not limited to, welding.

The first fixing piece 100 can be connected with a section bar of a window through the first fixing part, the second fixing piece 200 can be connected with another section bar of the window through the second fixing part, and two ends of the steel wire rope 400 are respectively connected with the first fixing piece 100 and the second fixing piece 200, so that the falling protector can connect the two section bars, and a better effect of preventing the falling of the window body is achieved.

The falling protector has the functions of falling protector and locking device, and provides the functions of falling prevention and sealing locking for the window.

In some embodiments, the fall arrester further comprises a rope connector 410.

The second fixing member 200 is provided with a clamping hole 210, the clamping hole 210 is matched with the rope joint 410, and one end of the steel wire rope 400 passes through the clamping hole 210 and is connected with the rope joint 410; the other end of the wire rope 400 may be connected to the positioning shaft 300 through, but not limited to, a welding process.

In the present embodiment, the engaging hole 210 is located at the front side of the arc concave surface 220, and the axial direction of the engaging hole 210 extends along the Z-axis. Of course, the engaging hole 210 can be located at the rear side of the arc concave surface 220. Rope joint 410 is made by the metal material, and rope joint 410 is single round hole aluminium clamp for single wire rope's head, inserts rope joint 410 back when wire rope 400's tip, uses pliers or hammer to compress tightly, makes rope joint 410 and wire rope 400 fixed mutually.

One end of the steel wire rope 400 penetrates through the clamping hole 210 to be connected with the rope joint 410, the steel wire rope is clamped in the clamping hole 210 through the rope joint 410, one end of the steel wire rope 400 is connected with the second fixing piece 200, the other end of the steel wire rope 400 is connected with the positioning shaft 300, the positioning shaft 300 not only plays a clamping role in the locking device, but also serves as the other rope joint of the steel wire rope 400, the steel wire rope 400 is connected with the first fixing piece 100, the overall structure of the anti-falling device is simplified, and the material cost is reduced.

Of course, the other end of the steel wire rope 400 may also be connected to another rope connector, and correspondingly, the first fixing member 100 is provided with another clamping hole, so that the steel wire rope 400 is clamped in the clamping hole through the rope connector to be connected to the first fixing member 100.

In some embodiments, the two connection portions 120 of the first fixture 100 are respectively provided with a first connection hole 110 and a second connection hole, and both ends of the positioning shaft 300 are respectively detachably mounted in the first connection hole 110 and the second connection hole.

Specifically, first connecting hole 110 can set up the internal thread, and the second connecting hole sets up the internal thread, and is corresponding, sets up two sections external screw threads on the location axle 300, screws into first connecting hole 110, second connecting hole from last to down in proper order with location axle 300 to realize dismantling of location axle 300 and connect at connecting portion 120.

Further, the connection of the positioning shaft 300 and the connection portion 120 may also be performed in the following manner.

The fall arrester further comprises a buffer sleeve 700. The cushion cover 700 may be made of plastic, silicone, or the like. In this embodiment, the cushion cover 700 is a rubber cover.

Furthermore, the positioning shaft 300 includes a head portion 310, a shaft portion 320, and a string connecting portion 330, which are connected in sequence, and diameters of the head portion 310, the shaft portion 320, and the string connecting portion 330 become smaller in sequence, that is, the diameter of the shaft portion 320 is smaller than that of the head portion 310 and larger than that of the string connecting portion 330. The head portion 310, the shaft portion 320, and the cord connecting portion 330 are integrally molded.

The rope connecting portion 330 is connected to the wire rope 400, and specifically, the rope connecting portion 330 is provided with a connecting hole, the connecting hole extends to the shaft portion 320, and after the other end of the wire rope 400 is inserted into the connecting hole, the rope connecting portion 330 can be pressed by a pliers or a hammer, so that the rope connecting portion 330 is deformed, and the rope connecting portion 330 is fixed to the wire rope 400.

The buffering sleeve 700 is clamped in the first connection hole 110, in this embodiment, the buffering sleeve 700 is provided with a clamping claw 710, and after the buffering sleeve 700 is inserted into the first connection hole 110 from top to bottom, the buffering sleeve 700 is fixed in the first connection hole 110 by the clamping action of the clamping claw 710 and cannot be easily separated from the first connection hole 110. The outer circumferential surface of the buffer sleeve 700 can be attached to the inner circumferential surface of the first connection hole 110. The buffer sleeve 700 is provided with a through hole which is matched with the shaft part 320, and the outer circumferential surface of the shaft part 320 can contact with the inner circumferential surface of the through hole.

The second connection hole is matched with the rope connection part 330, and the outer circumferential surface of the rope connection part 330 can be attached to the inner circumferential surface of the second connection hole.

As shown in fig. 4 and 5, after the buffer sleeve 700 is snapped in the first connection hole 110, the positioning shaft 300 can be inserted into the through hole of the buffer sleeve 700 from top to bottom; the rope connecting part 330 sequentially passes through the through hole and the second connecting hole and is connected with the second connecting hole; the diameter of head 310 is greater than axial portion 320, and usable head 310 joint makes location axle 300 can not down drop at the top surface of cushion collar 700, moreover, conveniently to head 310 application of force, takes location axle 300 out to make things convenient for the installation work of safety hook to go on fast.

The buffer sleeve 700 is disposed between the first connection hole 110 and the shaft portion 320, and can play a certain role in buffering and damping.

Furthermore, as shown in fig. 1 and 8, an embodiment of the present invention further provides a casement window, including: a first profile 510, a second profile 520 and a fall arrester as described above. Of course, the casement window further comprises a hinge or a four-bar mechanism (or called sliding support) to promote the casement window to keep a stable state when the casement window is in an opening or closing state.

The first fixing member 100 is connected with the first section bar 510; the second fixing member 200 is connected to the second profile 520. In this embodiment, first profile 510 is an integral part of a window frame and second profile 520 is an integral part of a window, and second profile 520 rotates relative to first profile 510 when the window is rotated.

Specifically, the casement window further comprises a screw 610. The first section bar 510 is provided with a plurality of first screw holes, and the screws 610 pass through the first mounting holes and are connected to the first screw holes, so that the first fixing member 100 is fixed on the first section bar 510, at this time, the head 310 of the positioning shaft 300 is located at the upper end of the positioning shaft 300, and the rope connecting portion 330 is located at the lower end of the positioning shaft 300. In this embodiment, the first mounting hole is disposed on the left side of the first fixing member 100 and located on the right side of the positioning shaft 300, as shown in fig. 1, the positioning shaft 300 is firstly drawn out from the upper screw 610, so as to avoid the influence of the positioning shaft 300 on the screw installation.

Second section bar 520 is equipped with the second screw, and the second screw sets up a plurality ofly, screw 610 pass the second mounting hole connect in the second screw to fix second mounting 200 on second section bar 520, at this moment, the both ends of arc concave surface 220 are and extend the setting from top to bottom, and the buckle takes place for convenient arc concave surface 220 and location axle 300 after closing flat-open window. In the present embodiment, the second mounting hole is provided at the arc-shaped concave surface 220, as shown in fig. 1.

Of course, it is not excluded that the first fixing member 100 can be mounted on the first section bar 510 and the second fixing member 200 can be mounted on the second section bar 520 by a snap-fit method, a welding method or other methods.

Set up the safety hook between first section bar 510 and the second section bar 520 of flat-open window, install at first section bar 510 through first mounting 100, second mounting 200 is installed at second section bar 520, can realize preventing the mesh that the window form falls, moreover, this safety hook possesses the effect of tight ware, after the window is closed, second mounting 200 is relative setting with first mounting 100, make location axle 300 and arc concave surface 220 contact and produce the buckle effect, thereby form the tight ware, can provide stronger sealed packing force, and then improve the sealing performance of window, as shown in fig. 3.

In some embodiments, the casement window further includes a connector 620 and a lock block 630. The attachment member 620 may be a bolt and the locking block 630 may be a metal block with an internal threaded hole.

The first section bar 510 is provided with a first slot 511, the first slot 511 is vertically arranged, and the first slot 511 may be a T-shaped slot. The first locking slot 511 is provided with the locking block 630, and the connecting member 620 passes through the first mounting hole and is connected to the locking block 630. The first mounting holes include screw mounting holes 230 and connector mounting holes 240.

The connecting piece 620 penetrates through the first mounting hole to be connected with the locking block 630, then the locking block 630 is placed into the first clamping groove 511, and the locking block 630 is screwed, so that the first fixing piece 100 and the first section bar 510 are fixed, a certain positioning effect is achieved, subsequent screw connection is facilitated, the connectivity between the first fixing piece 100 and the first section bar 510 can be enhanced, and the falling protector is mounted more firmly.

The second section bar 520 is provided with a second clamping groove 521, the second clamping groove 521 is vertically arranged, and the second clamping groove 521 can be a T-shaped groove. The second locking groove 521 is provided with the locking block 630, and the connecting member 620 passes through the second mounting hole and is connected to the locking block 630. The second mounting holes include screw mounting holes 230 and connector mounting holes 240.

Utilize connecting piece 620 to pass the second mounting hole and be connected with locking piece 630, then put into second draw-in groove 521 with locking piece 630 to through the locking piece 630 of screwing for second mounting 200 is fixed mutually with second section bar 520, plays certain positioning action, conveniently follow-up screw connection that carries on, can strengthen the connectivity between second mounting 200 and the second section bar 520 moreover, thereby makes this safety hook installed more firmly.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.

Claims

1. A fall arrester, comprising:

the first fixing piece (100) is provided with a positioning shaft (300) and a first fixing part used for being connected with the section bar, and two ends of the first fixing piece (100) respectively protrude towards the direction far away from the first fixing part to form a connecting part (120); two ends of the positioning shaft (300) are respectively connected with the connecting part (120);

the second fixing piece (200) is provided with a second fixing part used for being connected with the sectional material, the second fixing piece (200) is provided with an arc-shaped concave surface (220), and the arc-shaped concave surface (220) and the second fixing part are oppositely arranged; the arc concave surface (220) is matched with the positioning shaft (300);

and a wire rope (400) having one end connected to the first fixing member (100) and the other end connected to the second fixing member (200).

2. The fall arrester of claim 1 further comprising a rope connector (410); the second fixing piece (200) is provided with a clamping hole (210), the clamping hole (210) is matched with the rope joint (410), and one end of the steel wire rope (400) penetrates through the clamping hole (210) and is connected with the rope joint (410); the other end of the steel wire rope (400) is connected with the positioning shaft (300).

3. The fall arrester according to claim 2, wherein the two connecting portions (120) of the first fixing member (100) are respectively provided with a first connecting hole (110) and a second connecting hole, and both ends of the positioning shaft (300) are respectively detachably mounted in the first connecting hole (110) and the second connecting hole.

4. The fall arrester of claim 3 further comprising a cushion collar (700); the positioning shaft (300) comprises a head part (310), a shaft part (320) and a rope connecting part (330) which are sequentially connected, and the diameters of the head part (310), the shaft part (320) and the rope connecting part (330) are sequentially reduced; the rope connecting part (330) is connected with a steel wire rope (400); the buffer sleeve (700) is clamped in the first connecting hole (110), and the buffer sleeve (700) is provided with a through hole which is matched with the shaft part (320); the second connecting hole is matched with the rope connecting part (330).

5. The fall arrester of claim 4 wherein the cushion boot (700) is a rubber boot.

6. The fall arrester of any of claims 1 to 5 wherein the first fixed portion is provided with a first mounting hole.

7. The fall arrester of claim 6 wherein the second fixed portion is provided with a second mounting hole.

8. A casement window, comprising: -a first profile (510), a second profile (520) and a fall arrester according to claim 7; the first fixing piece (100) is connected with the first section bar (510); the second fixing piece (200) is connected with the second section bar (520).

9. The casement window according to claim 8, further comprising a screw (610); the first section bar (510) is provided with a first screw hole, and the screw (610) passes through the first mounting hole and is connected with the first screw hole; the second section bar (520) is provided with a second screw hole, and the screw (610) penetrates through the second mounting hole to be connected to the second screw hole.

10. The casement window according to claim 9, further comprising a connecting piece (620) and a locking piece (630); the first section bar (510) is provided with a first clamping groove (511), the first clamping groove (511) is provided with the locking block (630), and the connecting piece (620) penetrates through the first mounting hole to be connected to the locking block (630); the second section bar (520) is provided with a second clamping groove (521), the second clamping groove (521) is provided with the locking block (630), and the connecting piece (620) penetrates through the second mounting hole to be connected to the locking block (630).