Insect Screen Detachment Prevention Device

Abstract

The present invention provides a locking device installed on an insect screen frame installed on a window frame, the locking device comprising a lifting locking member having a lifting unlocking mechanism that moves up and down by the compression and expansion of a spring. The lifting unlocking mechanism of the locking device is inserted and coupled into an insertion coupling hole of a unlocking part installed on the window frame to maintain a locked state. When external forces such as strong winds, vibrations, or shocks act on the insect screen frame installed on the window frame, the unlocking part installed on the window frame and the lifting unlocking mechanism of the locking device are stably inserted and coupled by such external forces, thereby preventing the insect screen frame from detaching from the inside of the window frame. This prevents safety accidents caused by the risk of curious young children falling, prevents harmful insects such as flies and mosquitoes from easily entering the interior due to the insect screen frame detached from the window frame, and prevents serious safety accidents below the high-rise building caused by the detached insect screen frame. This concerns a device to prevent insect screens from detaching.

Description

Technology Field

[0001] The present invention relates to an insect screen detachment prevention device that prevents an insect screen frame, which is movably installed on a window frame, from detaching from the window frame due to external force. Background Technology

[0002] As is well known, in buildings such as apartments or detached houses, an insect screen frame is additionally installed on the outer side of the window frame to prevent harmful pests, such as mosquitoes and flies, from entering the interior from the outside when the window is opened.

[0003] The insect screen frame is installed on the outer frame of the window frame and opens and closes in a sliding manner using the outer frame as a rail, and consists of a window-sized frame made of synthetic resin or metal and a mesh that is tightly fixedly mounted on the inner side of the frame.

[0004] As illustrated in FIG. 1, the insect screen frame (200) installed on the window frame (100) is installed such that the upper and lower connecting grooves (101a, 101b) formed on the upper and lower parts of the insect screen frame (200) are inserted and connected to the upper and lower rails (100a, 100b) installed on the inner upper and lower parts of the window frame (100), thereby connecting the upper and lower parts of the insect screen frame (200) to the upper and lower rails (100a, 100b) so that it moves along the upper and lower rails (100a, 100b). The upper part of the upper connecting groove (101a) of the insect screen frame (200) is provided with a gap (102) formed spaced apart from the lower part of the upper rail (100a), so that the insect screen frame (200) can move through the gap (102) of the window frame (100). It is configured to be installed by being coupled to or detached from the upper and lower rails (100a, 100b).

[0005] In this way, due to the gap (102) formed between the upper part of the insect screen frame (200) and the lower part of the upper rail (100a), when strong wind blows or vibration or impact occurs, the insect screen frame (200) moves up, down, left, or right due to the wind, vibration, impact, etc., causing the insect screen frame (200) to open from the window frame (100) or even the upper coupling groove (101) of the insect screen frame (200) to detach from the upper rail (100a) through the gap (102) and move outward. Such opening or detachment of the insect screen frame (200) raises concerns that curious young children may fall, increasing the risk of safety accidents. Furthermore, harmful insects such as flies and mosquitoes can easily enter the indoors due to the insect screen frame (200) detached from the window frame (100), and the insect screen frame (200) detached from a high-rise building There were many problems beneath high-rise buildings that threatened serious safety. Prior art literature

[0006] {Patent Document 1} Republic of Korea Registered Patent No. 10-2804756 The problem to be solved

[0007] To solve the above-mentioned problems, the present invention provides a new insect screen detachment prevention device that is installed on an insect screen frame installed on a window frame, the device comprising a lifting locking member having a lifting unlocking mechanism that moves up and down by the compression and expansion of a spring, wherein the lifting unlocking mechanism of the locking device is inserted and coupled into an insertion coupling hole of a unlocking part installed on the window frame to maintain a locked state, so that when external forces such as strong winds, vibrations, or shocks act on the insect screen frame installed on the window frame, the unlocking part installed on the window frame and the lifting unlocking mechanism of the locking device are stably inserted and coupled by such external forces to prevent the insect screen frame from detaching from the inside of the window frame, thereby preventing safety accidents caused by the risk of curious young children falling, preventing harmful insects such as flies and mosquitoes from easily entering the interior due to the insect screen frame detached from the window frame, and preventing serious safety accidents below the high-rise building caused by the insect screen frame detaching from the high-rise building. There is a purpose. means of solving the problem

[0008] To achieve the above objective, the present invention comprises: an insect screen frame (20) positioned on the outer side of a window frame that is slidably connected and installed on a window frame (10); and an insect screen frame (20) that is slidably connected and installed on a window frame (10).

[0009] A locking device (30) installed on an insect screen frame (20) and equipped with a lifting unlocking member (31) having a lifting unlocking member (31a) at the bottom so as to be raised by the compression and expansion of a spring(s), and

[0010] It is characterized by being composed of an unlocking part (40) installed on a window frame (10), having an insertion coupling hole (41a) so that a lifting unlocking member (31) that is lifted and lowered together with the lifting unlocking member (31) can be inserted and removed.

[0011] Additionally, the unlocking part (40) is installed by being inserted into an insertion coupling groove (12) formed in the window frame (10), and is characterized by being composed of a fixing part (41) that is fixed to the inner surface of the insertion coupling groove (12) using a plurality of bolts (b), an upright part (42) that is vertically extended from the other side of the fixing part (41), and a coupling detachment part (43) that is formed on the other side of the upright part (42) and has an insertion coupling hole (41a) in the center.

[0012] Additionally, the locking device (30) comprises a housing portion (32) with an open bottom, a lower fixing frame (33) that is coupled and fixed to the bottom of the housing portion (32), and a lifting release locking member (31) provided at the lower center of the lifting release member (31) which is raised by the compression and expansion of a spring (s) inside a lifting hole (34) formed in the center of the housing (32) to be inserted and coupled with the outer circumference of the lifting release member (31), which is provided to be inserted and removed from the lower fixing frame (33), and lower catch members (a) provided on both sides of the lifting release member (31), and lifting guide grooves (a1) formed on both sides of the lifting hole (34) to allow the lower catch members (a) to be inserted;

[0013] It is characterized by being composed of a slide groove (35) formed adjacent to the left side of the lifting hole (34), a slide unlocking member (36) installed to be inserted and coupled inside the slide groove (35) and capable of moving left and right inside the slide groove (35) by the compression and expansion of a spring(s), and a right locking member (a2) formed protruding from the lower right side of the slide unlocking member (36) and configured so that its lower surface catches on the upper surface of the lower locking member (a) that has been lowered.

[0014] Additionally, the slide unlocking member (36) is characterized by having a formed slide slot (36b), a support member (36c) formed in the lower part of the housing (32) and positioned inside the slide groove (35) to be coupled with the slide slot (36b), and a spring(s) installed on the inner left side of the slide slot (36b) and the right side of the support member (36c) inserted into the slide slot (36b).

[0015] In addition, the lower part of the lifting unlocking member (31) is characterized by having at least one spring(s).

[0016] Additionally, the unlocking member (37) formed on the upper left side of the slide home (35) and the slide projection (36a) formed protruding on the upper left side of the slide unlocking member (36) are configured to be movable left and right within the unlocking member (37).

[0017] Additionally, the fixed operating groove (38) formed adjacent to the left side of the lifting hole (34), the fixed release means (39) formed inside the fixed operating groove (38), and the slide groove (35) and the fixed operating groove (38) are formed in communication with each other, and the right side of the fixed release means (39) passes through the slide groove (35) to fix and release the left side of the slide unlocking member (36) of the slide groove (35).

[0018] Additionally, the fixed release means (39) comprises a rotating member (39b) having a fixed groove (39a) provided in a protruding moving guide projection (39d-1) formed on the front and rear surfaces, the rotating member (39b) being fixedly installed by being inserted into the fixed operating groove (38), a fixing pin (39c) that is coupled through the front and rear of the fixed operating groove (38) and the rotating member (39b), a plurality of insertion / removal parts (39d) provided to be inserted into and removed from the fixed groove (39a), a moving bar (39e) extended to the right of the insertion / removal part (39d), a spring (s) inserted and coupled to the outer circumference of the moving bar (39e), and the right side of the moving bar (39e) passing through a connecting hole (39g) connecting the slide groove (35) and the fixed operating groove (38) to fix the left side of the slide unlocking member (36) installed inside the slide groove (35). It is characterized by releasing and

[0019] In addition, the spring(s) inserted and coupled to the outer circumference of the moving bar (39e) is characterized by being formed in a shape that is narrow at the top and wide at the bottom.

[0020] Additionally, the device is characterized by having an exposed hole (39h) formed on the upper left side of the housing (32) in communication with the fixed operating groove (38), and the outer circumference of the rotating member (39b) installed in the fixed operating groove (36) being exposed to the exposed hole (39h). Effects of the invention

[0021] The present invention provides a new effect in which a locking device is installed on an insect screen frame installed on a window frame, the locking device being equipped with a lifting locking member having a lifting unlocking mechanism that moves up and down by the compression and expansion of a spring, and the lifting unlocking mechanism of the locking device is inserted and coupled into an insertion coupling hole of a unlocking part installed on the window frame to maintain a locked state. When external forces such as strong winds, vibrations, or shocks act on the insect screen frame installed on the window frame, the lifting unlocking mechanism of the locking device and the unlocking part installed on the window frame are stably inserted and coupled by such external forces, thereby preventing the insect screen frame from detaching from the inside of the window frame. This prevents safety accidents caused by the risk of curious young children falling, prevents harmful insects such as flies and mosquitoes from easily entering the interior due to the insect screen frame detached from the window frame, and prevents serious safety accidents below the high-rise building caused by the detached insect screen frame. Brief explanation of the drawing

[0022] FIG. 1 is a schematic diagram of a conventional insect screen frame installed on a window frame. FIG. 2 is a perspective view according to the present invention. FIG. 3 is an exploded perspective view according to the present invention. FIG. 4 is a perspective view of a housing according to the present invention. FIG. 5 is a perspective view showing a slide unlocking member and a fixing release means according to the present invention. FIG. 6 is a perspective view of a lower fixed frame and a movable assist frame according to the present invention. FIG. 7 is a perspective view of an unlocking unit according to the present invention. FIGS. 8 to 10 are diagrams of operation according to the present invention. FIGS. 11 and FIGS. 12 are installation example diagrams according to the present invention. Specific details for implementing the invention

[0023] To fully understand the invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[0024] Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to more safely explain the present invention to those with average knowledge in the art.

[0025] Therefore, the shapes of elements in the drawings may be exaggerated to emphasize clearer explanations. It should be noted that identical members may be depicted with the same reference numeral in each drawing.

[0026] The insect screen detachment prevention device according to the present invention is described in detail with reference to FIGS. 2 to 12. The insect screen detachment prevention device according to the invention is composed of an insect screen frame (20), a locking device (30), and an unlocking part (40).

[0027] The insect screen frame (20) is positioned on the outer side of the window frame, which is connected to the window frame (10) so as to be slidably movable, to prevent harmful pests such as flies and mosquitoes from easily entering the indoor space.

[0028] The locking device (30) is installed on the insect screen frame (20) and consists of a lifting unlocking member (31) having a lifting unlocking member (31a) at the bottom so as to be raised by the compression and expansion of a spring(s).

[0029] This locking device (30) is composed of a housing part (32) having an opening (32a) with an open bottom.

[0030] It is composed of a lower fixing frame (33) that is coupled and fixed to the lower part of the housing part (32) as described above.

[0031] In addition, four support members (36c) are formed spaced apart from each other, each having a bolt hole (b1) located above the opening (32a) formed at the bottom of the housing part (32) so that a bolt (b) is connected from the left to the right of the internal space part (32b) of the housing part (32).

[0032] In addition, four bolt holes (b1) are formed in the lower fixed frame (33), and these four bolt holes (b1) are aligned with the four bolt holes (b1) of the support part (36c) provided in the housing part (32), so that a bolt (b) is coupled to the bolt holes (b) of the lower fixed frame (33) and the bolt holes (b1) of the support part (36c) of the housing part (32) that are aligned in this way, and the lower fixed frame (33) is coupled to the lower part of the housing part (32).

[0033] In addition, it consists of an internal space (32b) formed inside the housing part (32).

[0034] A fixed operating groove (38), a slide groove (35), and a lifting hole (34) are formed from left to right inside the internal space (32b), and a support member (36c) having a bolt hole (b1) is provided on the left side of the fixed operating groove (38), and a support member (36c) having a bolt hole (b1) is provided inside the slide groove (35) formed inside the internal space (32b), and a plurality of support members (36c) having a bolt hole (b1) are provided from left to right at the left end of the lifting hole (34) inside the internal space (32b) at spaced apart from each other.

[0035] Meanwhile, the housing (32) is configured with a lifting hole (34) formed so that the outer circumference of the lifting unlocking member (31) is inserted and coupled in the center.

[0036] A lifting release lock (31a) provided at the lower center of a lifting release member (31) that is lifted by the compression and expansion of a spring(s) inside the lifting hole (34) is configured to be inserted into and removed from the inlet / outlet hole (33a) of the lower fixed frame (33).

[0037] In addition, lower locking holes (a) are formed on both sides of the lifting unlocking member (31).

[0038] Lifting guide grooves (a1) are formed on both sides of the lifting hole (34) so ​​that the lower locking member (a) is inserted.

[0039] It is composed of a slide groove (35) formed adjacent to the left side of the lifting hole (34).

[0040] Meanwhile, it is composed of a slide unlocking member (36) that is inserted and coupled inside the slide groove (35) and is installed to be able to move left and right inside the slide groove (35) by the compression and expansion of a spring(s).

[0041] Additionally, it is composed of a right catch (a2) that is formed protruding from the lower right side of the slide unlocking member (36) and is configured so that its lower surface is caught on the upper surface of the lower catch (a) that has been lowered.

[0042] Meanwhile, the formed slide slot (36b) of the slide unlocking member (36) is formed.

[0043] It is composed of a support member (36c) formed on the lower part of the housing (32) and located inside the slide groove (35) so as to be coupled with such a slide slot (36b).

[0044] The outer circumference of such support member (36c) is configured to be movable left and right by the compression and expansion of spring(s) inside the slide slot (36b).

[0045] Additionally, it consists of a spring(s) installed on the inner left side of the slide slot (36b) and on the right side of the support member (36c) inserted into the slide slot (36b).

[0046] In addition, a bolt hole (b1) is formed in the support member (36c) so that a bolt (b) can be connected.

[0047] And a plurality of insertion coupling holes (31b) are formed in the lower part of the lifting unlocking member (31).

[0048] These insertion coupling holes (31b) are formed up to the height of half of the lifting unlocking member (31), and the upper part of the spring(s) is inserted halfway into the insertion coupling holes (31b) thus formed, and the lower part of the spring(s) is exposed halfway to the lower part of the lifting unlocking member (31).

[0049] Accordingly, at least one spring(s) may be formed in the lower part of the lifting unlocking member (31), but in the present invention, it is preferable that a plurality of springs(s) be formed in the lower part of the lifting unlocking member (31), but the number of springs(s) is not limited.

[0050] In addition, it consists of a lock release member (37) formed on the upper left side of the lifting hole (34).

[0051] And it consists of a slide projection (36a) formed to protrude from the upper left side of the slide unlocking member (36).

[0052] These slide projections (36a) are configured to be movable left and right inside the unlocking device (37).

[0053] In addition, a gripping groove (37a) is further formed to the right of the unlocking member (37), and the user's finger is more easily inserted into this gripping groove (37a) to easily catch the slide projection (36a) exposed on the unlocking member (37).

[0054] In addition, a fixing projection (36d) is formed on the lower right side of the slide unlocking member (36).

[0055] And an insertion groove (32d) is formed in the center of the lower front and rear standing wall (32c) of the housing part (36).

[0056] It consists of a moving assist frame (32e) that is inserted and coupled into the insertion groove (32d).

[0057] An assembly hole (32f) is formed on the left side of the above-mentioned moving aid frame (32e) so that a fixing projection (36d) can be inserted and coupled.

[0058] Additionally, a first movable slot (32g) is formed in the center of the movable assist frame (32e) so that a lifting unlock member (31a) can be inserted and moved, and a second movable slot (32h) is formed on both sides of the first movable slot (32g) so that a spring(s) installed at the bottom of the lifting unlock member (31) can be inserted and moved.

[0059] Accordingly, when the slide unlocking member (36) moves left and right due to the compression and expansion of the spring(s) within the slide groove (35), the fixing projection (36d) formed on the lower left side of the slide unlocking member (36) is coupled to the assembly hole (32f) of the movement assist frame (32e).

[0060] When the slide unlock member (36) moves left and right inside the enduring slide groove (35) by means of a spring(s), the movement assist frame (32e) also moves left and right inside the insertion groove (32d).

[0061] At this time, when the lifting release member (31a) of the lifting release member (31) is lifted due to the compression and expansion of the spring(s) inside the lifting hole (34), the lifting release member (31a) of the lifting release member (31) is inserted into the first moving slot (32g) of the moving assist frame (32e) that moves left and right, so that the lifting operation of the lifting release member (31a) is stably performed inside the first moving slot (32g).

[0062] In addition, a plurality of springs(s) provided at the lower part of the lifting unlocking member (31) are inserted into the interior of each second movable slot (32h), so that the compression and expansion action of the springs(s) is stably performed inside the second movable slot (32h) provided in the moving assist frame (32e) that moves left and right.

[0063] In addition, it is composed of a fixed operating groove (38) formed adjacent to the left side of the slide groove (35).

[0064] It consists of a release means (39) formed inside the fixed operating groove (38).

[0065] And the slide groove (35) and the fixed operating groove (38) are formed in communication with each other.

[0066] In addition, the right side of the fixing release means (39) is configured to pass through the slide groove (35) to fix and release the left side of the slide unlocking member (36) of the slide groove (35).

[0067] Additionally, the fixing release means (39) is composed of a rotating member (39b) having a fixing groove (39a) provided in a protruding moving guide projection (39d-1) formed on the front and rear surfaces.

[0068] A plurality of gripping protrusions (39b-1) are formed on the outer circumference of such a rotating member (39b).

[0069] The gripping protrusions (39b-1) as described above are configured to allow the finger to easily make contact.

[0070] And the rotating member (39b) is inserted into the fixed operating groove (38) and fixedly installed.

[0071] In addition, it is composed of a fixing pin (39c) that is coupled through the front and rear of the fixed operating groove (38) and the rotating member (39b).

[0072] The rotating member (39b) is configured to rotate inside the fixed operating groove (38) by means of such a fixed pin (39c).

[0073] In addition, it is composed of a plurality of insertion / removal parts (39d) provided to be inserted into and removed from the fixed groove (39a).

[0074] In addition, it consists of a moving bar (39e) extended to the right of the insertion / removal part (39d).

[0075] It consists of spring(s) inserted and coupled to the outer circumference of such a moving bar (39e).

[0076] Additionally, the left side of the spring(s) is supported on the right side of the insertion / removal part (39d), and the right side of the spring(s) is supported on the left side of both supporting walls (39g-1) forming the connecting hole (39g).

[0077] And a connecting projection (39g-2) is formed, positioned on the upper left side of the lower fixing frame (33) to be connected to the lower part of both supporting walls (39g-1) and inserted and connected to the lower part of both supporting walls (39g-1).

[0078] These connecting jaws (39g-2) are intended to help the moving bar (39e) move stably from left to right or from right to left between the two supporting walls (39g-1).

[0079] In addition, the spring(s) inserted and coupled to the outer circumference of the moving bar (39e) is formed in a shape that is narrower at the top and wider at the bottom, so that the spring(s) can more easily perform compression and expansion actions on the outer circumference of the moving bar (39e), thereby allowing the moving bar (39e) to move more stably within the connecting hole (39g).

[0080] And the right side of the moving bar (39e) is configured to pass through a connecting hole (39g) connecting the slide groove (35) and the fixed operating groove (38) to fix and release the left side of the slide unlocking member (36) installed inside the slide groove (35).

[0081] Additionally, it is composed of an exposed hole (39h) formed on the upper left side of the housing (32) in communication with the fixed operating groove (38).

[0082] And the outer circumference of the rotating member (39b) installed in the fixed operating groove (36) is configured to be exposed to the exposed hole (39h).

[0083] As described above, the purpose is to allow the user's finger to more easily contact the outer surface of the rotating member (39b) exposed in the exposed hole (39h), thereby allowing the rotating member (39b) to rotate smoothly inside the fixed operating groove (38).

[0084] The unlocking part (40) has an insertion coupling hole (41a) so that the lifting unlocking member (31), which is raised together with the lifting unlocking member (31), can be inserted and removed, and is configured to be installed on the window frame (10).

[0085] The unlocking part (40) is configured to be inserted and installed in the insertion coupling groove (12) formed in the window frame (10).

[0086] In addition, it is composed of a fixing part (41) that is fixed to the inner surface of the insertion joint part (12) using a plurality of bolts (b).

[0087] It consists of a standing part (42) that is vertically extended on the other side of the fixed part (41).

[0088] It is composed of a coupling detachment part (43) formed on the other side of the standing part (42) as described above and having an insertion coupling hole (41a) in the center.

[0089] Meanwhile, a coupling locking projection (32i) is formed on the left outer surface of the housing (32).

[0090] Additionally, before the locking device (30) is assembled inside the assembly coupling groove (21) formed in the insect screen frame (20), the coupling hook projection (32i) of the housing (32), which is a component of the locking device (20), is placed inside the assembly coupling groove (21), and then the locking device (20) is inserted and coupled inside the assembly coupling groove (21), and then the locking device (20) is fixedly installed on the insect screen frame (20) using a plurality of bolts.

[0091] Therefore, when the locking device (20) is assembled and installed in the assembly joint groove (21) with bolts due to the coupling locking projection (32i), it prevents the locking device (20) from detaching or moving within the assembly joint groove (21) due to external force.

[0093] The operation of the present invention is as follows.

[0094] First, in order to fix the insect screen frame (20) to the window frame (10), when the lifting unlock member (31) exposed to the outside of the locking device (20) assembled in the assembly joint groove (21) of the insect screen frame (20) is pressed, the lifting unlock member (31) descends from the upper inside of the lifting hole (34) to the lower.

[0095] At this time, the locking member (a) installed on both sides of the lifting unlock member (31) descends even inside the lifting guide groove (a1), and the spring (s) provided on both lower sides of the lifting unlock member (31) is compressed by relying on the upper surface of the lower fixed frame (33), and the lifting unlock member (31a) provided in the lower center of the lifting unlock member (31) comes out through the inlet / outlet hole (33a) formed in the center of the lower fixed frame (33) and descends downward.

[0096] In this way, as the lifting unlock member (31) descends from the lifting hole (34), the right locking member (a1) of the slide unlock member (31), which is moved to the left by the compression of the spring (s) inside the slide groove (35), is pressed against the locking member (a) provided on the left side of the lifting unlock member (31).

[0097] Additionally, when the locking member (a) provided on the left side of the lifting unlocking member (31) descending from the lifting hole (34) is disengaged from the right locking member (a1), and the lower surface of the right locking member (a1) comes into contact with the upper surface of the locking member (a),

[0098] As the spring(s) compressed inside the slide groove (35) expands, the slide unlocking member (36) inside the slide groove (35) is pushed from left to right, and the right locking member (a1) of the slide unlocking member (36) catches on the upper surface of the locking member (a) provided on the left side of the lifting unlocking member (31), thereby locking the lifting unlocking member (31) so that it can no longer move inside the lifting hole (34).

[0099] At this time, the lifting / unlocking mechanism (31a) is completely inserted and coupled into the insertion coupling hole (41a) formed in the coupling part (43) of the unlocking part (40) installed in the insertion coupling groove (12) of the window frame (10), thereby completely fixing the insect screen frame (20) to the window frame (10) and locking it so that it does not move due to external force.

[0100] In order to maintain the lifting unlock member (31) in the lifting hole (34) and the lifting unlock member (31a) in the inlet / outlet hole (33a) and the insertion / coupling hole (41a) in such a way,

[0101] By rotating the rotating member (39a), which is a fixed release means (39) exposed in the exposed hole (39h) provided inside the fixed operating groove (38) provided on the left side of the slide groove (35),

[0102] When the rotating member (39a) is rotated in one direction inside the fixed operating groove (38), the insertion / detachment part (39d), which was inserted and coupled into the fixed groove (39a) provided in the front and rear protruding movement guide jaws (39d-1) formed on the front and rear of the rotating member (39a), is detached from the fixed groove (39a). As the insertion / detachment part (39d) moves from left to right by the outer circumference of the rotating protruding movement guide jaw (39d), the moving bar (39e) also moves from left to right inside the connecting hole (39g) together with the insertion / detachment part (39d).

[0103] In this way, the moving bar (39e) is moved from left to right inside the connecting hole (39g) together with the insertion / removal part (39d), and the right side of the moving bar (39e) exposed to the right side of the connecting hole (39g) presses against the left side of the slide unlocking member (36) that has been moved to the right inside the slide groove (35) to lock the slide unlocking member (36) so that it does not move inside the slide groove (35). Then, the lifting unlocking member (31) that has been lowered inside the lifting hole (34) is also locked so that it does not move inside the lifting hole (34).

[0104] The process of releasing the fixed release means (39) from the locked state as described above is performed in the opposite manner to the operation of the fixed release means (39) so that the slide unlocking member (36) can be moved inside the slide groove (35) and then,

[0105] When the slide projection (36a) exposed on the upper part of the unlocking member (37) is pushed to the left, the slide unlocking member (36) and the slide projection (36a) are moved from right to left inside the slide groove (35).

[0106] At this time, the spring(s) is compressed within the slide slot (36b) of the slide unlocking member (36) by relying on the support member (36c).

[0107] Therefore, when the slide unlock member (36) is moved from right to left inside the slide groove (35),

[0108] When the right locking member (a2) of the slide unlocking member (36) is released from the locking member (a) provided on the left side of the lifting unlocking member (31), and the two springs (s) that were compressed relying on the upper surface of the lower fixing frame (33) expand, the lifting unlocking member (31) and the lifting unlocking member (31a) are raised inside the lifting hole (34),

[0109] When the lifting unlocking member (31a) is first detached from the insertion coupling hole (41a) formed in the coupling part (43) of the unlocking part (40), the lifting unlocking member (31a) is secondarily detached from the inlet / outlet hole (33a), and the lifting unlocking member (31) is lifted into the interior of the lifting hole (34), thereby releasing the locking state of the insect screen frame (20) from the window frame (10).

[0111] The embodiments according to the present invention described above are merely illustrative, and those skilled in the art will readily understand that various modifications and equivalent alternative embodiments are possible therefrom. Therefore, it will be readily understood that the present invention is not limited only to the forms mentioned in the detailed description above.

[0112] Therefore, the true technical scope of protection of the present invention should be determined by the technical concept of the appended claims. Furthermore, the present invention should be understood to include all variations, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Explanation of the symbols

[0113] 10: Window frame 12: Insertion joint groove 20: Insect screen frame 30: Locking device 31: Elevator unlocking part 31a: Elevator unlocking mechanism 32: Housing 33: Lower fixing frame 33a: Inlet / Outlet 34: Elevator 35: Slide Home 36: Slide Unlock Missing 36a: Slide projection 36b: Slide slot 36c: Support 37: Unlock Provider 38: Fixed operating groove 39: Fixed release means 39a: Fixed groove 39b: Rotating member 39b-1: Protruding movable jaw 39c: Fixing pin 39d: Insertion / Removal Part 39e: Moving Bar 39g: Connecting hole 39h: Exposed hole 40: Unlocking part 41: Fixing part 41a: Insertion joint hole 42: Upright part 43: Joint a: catch a1: elevator guide home a2: Right locking hook b: Bolt s: spring

Claims

Claim 1 The invention comprises: an insect screen frame (20) located on the outer side of a window frame that is slidably connected and installed on the window frame (10); a locking device (30) installed on the insect screen frame (20) and equipped with a lifting unlocking member (31) having a lifting unlocking member (31a) at the bottom so as to be raised by the compression and expansion of a spring (s); and an unlocking part (40) installed on the window frame (10) having an insertion coupling hole (41a) so as to be inserted and removed from the lifting unlocking member (31) that is raised together with the lifting unlocking member (31), wherein the unlocking part (40) is installed by being inserted into an insertion coupling groove (12) formed in the window frame (10) and a fixing part (41) fixed to the inner surface of the insertion coupling groove (12) using a plurality of bolts (b). An insect screen detachment prevention device characterized by being composed of a standing part (42) that is vertically extended on the other side of a fixed part (41), and a connecting detachment part (43) that is formed on the other side of the standing part (42) and has an insertion coupling hole (41a) in the center. Claim 2 delete Claim 3 In claim 1, the locking device (30) comprises a housing portion (32) with an open bottom, a lower fixing frame (33) coupled and fixed to the bottom of the housing portion (32), and a lifting release locking member (31) provided at the lower center of the lifting release member (31) which is raised by the compression and expansion of a spring(s) inside a lifting hole (34) formed in the center of the housing (32) to be inserted and coupled with the outer circumference of the lifting release member (31), so as to be inserted and removed from the inlet / outlet hole (33a) of the lower fixing frame (33), a lower catch (a) provided on both sides of the lifting release member (31), and lifting guide grooves (a1) formed on both sides of the lifting hole (34) to allow the lower catch (a) to be inserted; A screen door detachment prevention device characterized by comprising a slide groove (35) formed adjacent to the left side of the lifting hole (34), a slide unlocking member (36) installed to be inserted and coupled inside the slide groove (35) and capable of moving left and right inside the slide groove (35) by the compression and expansion of a spring(s), and a right locking member (a2) formed protruding from the lower right side of the slide unlocking member (36) and configured so that its lower surface catches on the upper surface of the lower locking member (a) that has been lowered. Claim 4 In claim 3, the insect screen detachment prevention device is characterized by comprising a slide slot (36b) formed in the slide unlocking member (36), a support member (36c) formed in the lower part of the housing (32) and positioned inside the slide groove (35) to be coupled with the slide slot (36b), and a spring(s) installed on the inner left side of the slide slot (36b) and the right side of the support member (36c) inserted into the slide slot (36b). Claim 5 An insect screen detachment prevention device according to claim 1 or 3, characterized in that at least one spring(s) is provided at the lower part of the lifting unlocking member (31). Claim 6 In claim 3, the insect screen detachment prevention device is characterized by the fact that the unlocking member (37) formed on the upper left side of the lifting hole (34) and the slide projection (36a) formed protruding on the upper left side of the slide unlocking member (36) are configured to be movable left and right inside the unlocking member (37). Claim 7 In claim 3, the insect screen detachment prevention device is characterized by a fixed operating groove (38) formed adjacent to the left side of the slide groove (35), a fixed release means (39) formed inside the fixed operating groove (38), the slide groove (35) and the fixed operating groove (38) being formed in communication with each other, and the right side of the fixed release means (39) passing through the slide groove (35) to fix and release the left side of the slide lock release member (36) of the slide groove (35). Claim 8 In claim 7, the fixing release means (39) comprises a rotating member (39b) having a fixing groove (39a) provided in a protruding moving guide projection (39d-1) formed on the front and rear surfaces, the rotating member (39b) being fixedly installed by being inserted into the fixed operating groove (38), a fixing pin (39c) that is coupled through the front and rear of the fixed operating groove (38) and the rotating member (39b), a plurality of insertion / removal parts (39d) provided to be inserted into and removed from the fixing groove (39a), a moving bar (39e) extended to the right of the insertion / removal part (39d), a spring (s) inserted and coupled to the outer circumference of the moving bar (39e), and the right side of the moving bar (39e) passing through a connecting hole (39g) connecting the slide groove (35) and the fixed operating groove (38) and a slide installed inside the slide groove (35). An insect screen detachment prevention device characterized by fixing and releasing the left side of the unlocking member (36). Claim 9 In claim 8, the insect screen detachment prevention device is characterized in that the spring(s) inserted and coupled to the outer circumference of the movable bar (39e) is formed in a shape that is narrow at the top and wide at the bottom. Claim 10 In claim 8, the insect screen detachment prevention device is characterized by having an exposed hole (39h) formed on the upper left side of the housing (32) in communication with the fixed operating groove (38), and the outer circumference of a rotating member (39b) installed in the fixed operating groove (36) being exposed to the exposed hole (39h).

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