阅读说明：本技术 有支柱和滑锁的蚊帐支架 (Mosquito net frame with pillar and slide lock ) 是由 邱林 于 2020-05-29 设计创作，主要内容包括：本发明涉及有支柱和滑锁的蚊帐支架,包含顶部框架和至少一立柱,立柱配有滑锁,滑锁由锁壳、压弹簧、解锁机构和摩擦锁芯组成,摩擦锁芯在锁壳内的姿态或位置决定滑锁是锁定或解锁状态,锁定状态时顶部框架及其承重通过滑锁传递给立柱,解锁状态时顶部框架可以沿立柱上下移动；压弹簧把摩擦锁芯压在滑锁处于锁定状态的位置,人可推拉解锁机构来带动摩擦锁芯转换到滑锁处于解锁状态时的位置,放手后自动恢复锁定,推拉解锁机构也可以推高、降低滑锁及顶部框架,蚊帐日常使用时就升高到天花板,拆洗维护时就降落,其优点是,消除了现有的顶部框架贴着天花板的蚊帐在拆洗和维护时需要登高作业的缺点,任何人也能胜任拆洗蚊帐布件的工作。(The invention relates to a mosquito net bracket with a pillar and a sliding lock, which comprises a top frame and at least one upright post, wherein the upright post is provided with the sliding lock, the sliding lock consists of a lock shell, a compression spring, an unlocking mechanism and a friction lock cylinder, the posture or the position of the friction lock cylinder in the lock shell determines that the sliding lock is in a locking state or an unlocking state, the top frame and the bearing thereof are transmitted to the upright post through the sliding lock in the locking state, and the top frame can move up and down along the upright post in the unlocking state; the friction lock cylinder is pressed at the position of the sliding lock in the locking state by the compression spring, a person can push and pull the unlocking mechanism to drive the friction lock cylinder to be converted into the position of the sliding lock in the unlocking state, the friction lock cylinder automatically restores locking after being released, the sliding unlocking mechanism can also be pushed to be high and lower the sliding lock and the top frame, the mosquito net is lifted to a ceiling during daily use and is descended during unpicking, washing and maintenance.)

1. The mosquito net frame with the support post and the slide lock comprises a top frame and at least one support post and is characterized in that the support post is a vertical post with fixed length, each vertical post is provided with a slide lock, and the top frame and the gravity borne by the top frame are transmitted to the vertical post through the slide lock; the sliding lock consists of a lock shell, a compression spring, an unlocking mechanism and a friction lock cylinder, wherein the posture or the position of the friction lock cylinder in the lock shell determines whether the sliding lock is in a locking state or an unlocking state; when the lock is in an unlocking state, the friction lock cylinder is in a position or posture which is not contacted with the upright post or can not be tightly contacted with the upright post, and the lock shell can freely slide up and down along the upright post; when the lock is in a locked state, the friction lock cylinder is positioned at a position which can receive the gravity borne by the lock shell and is also positioned at a position or posture which is pressed against the upright post and can form a friction self-locking relation with the upright post, the gravity borne by the lock shell is transmitted to the friction lock cylinder and then transmitted to the upright post by friction resistance, the larger the gravity is, the larger the pressure of the friction lock cylinder on the upright post is, the larger the friction resistance generated by the pressure is, and the friction resistance is always larger than the gravity transmitted to the lock shell by the top frame; the pressing spring pushes the friction lock core to the position or the posture of the pressing upright post, so that the normal state of the sliding lock is a locking state; the unlocking mechanism is connected with a friction lock cylinder in the lock shell, and pushes or pulls the part of the unlocking mechanism exposed out of the lock shell, so that the unlocking mechanism can be driven to overcome the pressure of a compression spring to convert the friction lock cylinder to a posture or a position which is not contacted with an upright post or can not be tightly contacted, the slide lock is converted to an unlocking state, the lock shell and a top support supported by the lock shell can be manually lifted or dropped under the condition of not being hindered by braking friction force, and the part of the unlocking mechanism exposed out of the lock shell can be a force point for manually controlling the slide lock to lift or drop.

2. The mosquito net frame with the support post and the slide lock as claimed in claim 1, wherein the support post is telescopic in length and comprises a vertical post with a fixed length, a pipe post and a second slide lock, the second slide lock and the slide lock have the same structure and size, the cross section of the inner hole of the pipe post is slightly larger than that of the vertical post, the assembly sequence is that the posture of the second slide lock and the posture of the slide lock are reversed, and the vertical post sequentially passes through the slide lock, the second slide lock and then is inserted into the inner hole of the pipe post from top to bottom.

3. The mosquito net stand with the support columns and the sliding locks as claimed in claim 2, wherein the telescopic support columns comprise an upright column, a pipe column and a second sliding lock, and further comprise a screw rod and a nut, the screw rod is provided with a hole loosely matched with the upright column in the center, the bottom of a screw hole of the nut is reduced to be smaller than the pipe column and the hole loosely matched with the upright column, the screw rod is screwed into the nut, and the upright column is inserted into the pipe column after being inserted into and passing through the screw rod and the nut below the second sliding lock.

4. Mosquito net support with columns and slide locks according to claim 1, claim 2 or claim 3, wherein the slide lock is composed of a lock case (3), a compression spring (4), a lock handle (5) and a lock shaft (6), the lock case (3) and the lock handle (5) have shaft holes matched with the lock shaft (6), the lock shaft (6) passes through the shaft holes of the lock case (3) and the lock handle (5) to enable the lock handle (5) to rotate around the lock shaft (6); the friction lock cylinder is characterized in that the lock shaft (6) and the lock handle (5) are arranged on the left side of the lock shaft (6), and the unlocking mechanism is arranged on the right side of the lock handle (5) on the lock shaft (6); the pressing spring (4) pushes the lock shell (3) upwards and presses the lock handle (5) downwards at the right side of the shaft hole of the lock handle (5); the left end of the lock handle (5) is an involute curve or an elliptic curve taking the shaft hole as the radius center, the radius of the upper half part of the curve is smaller than that of the lower half part, when the right end of the lock handle (5) is in a high position, namely the lock handle pushes the lock shell upwards, the radius of the closest part of the lock handle (5) and the upright post (1) is slightly smaller than the distance from the lock shaft (6) to the surface of the upright post, and when the right end of the lock handle (5) is in a low position, namely the lock handle presses the lock shell downwards, the radius of the contact part of the lock handle (5) and the upright post (1) is slightly larger than the distance from the lock shaft (6) to the surface of the upright post; when the right end of the lock handle (5) is in a high position and the upward external force acting on the right end of the lock handle (5) is equal to the downward acting force of the top frame (2) on the lock shell (3), the clockwise torque generated by the pressure of the pressure spring (4) on the shaft hole is smaller than the anticlockwise torque generated by the upward external force acting on the right end of the lock handle (5) on the shaft hole.

5. The mosquito net support with the support columns and the sliding lock according to claim 1, claim 2 and claim 3, wherein the sliding lock is composed of a lock case (12), a lock tongue (10), a compression spring (11), an unlocking rope (13) or an unlocking push rod (9) and an unlocking handle (8), the friction lock cylinder is the lock tongue (10), the unlocking mechanism is the unlocking rope (13) or the unlocking push rod (9) and the unlocking handle (8), the parts are structurally and in assembly relation, the lock case (12) is provided with a lock hole for penetrating the upright post (1) and an inner cavity for accommodating the lock tongue (10) and the compression spring (11), the inner cavity is communicated with the side wall of the lock hole, the left end of the lock tongue (10) is propped against the right upper corner of the inner cavity of the lock tongue (10) towards the right end of the upright post (1), the compression spring (11) is arranged between the bottom surface of the inner cavity of the lock case (12) and the lower surface of the lock tongue (10) and continuously and propped against, the length of the bolt (10) is slightly larger than the distance from the upper left corner of the inner cavity of the lock shell (12) to the upright post (1), so that the included angle beta between the bolt (10) and the upright post (1) meets the condition that the bolt (10) and the upright post (1) form friction self-locking; the upper end of the unlocking rope (13) is connected with the lower end of the bolt (10) and penetrates out of the lock shell (12) downwards; or, the unlocking rope 13 is replaced by the combination of the unlocking push rod 9 and the unlocking handle 8, the unlocking push rod (9) is adopted to press the bolt (10) downwards and penetrate out of the lock shell (12), the unlocking push rod (9) is pressed at the left end of the unlocking handle (8), and the middle of the unlocking push rod is hinged with the lock shell (12).

6. Mosquito net support with columns and slide locks according to claim 1, claim 2, claim 3, characterized in that the slide lock is composed of a lock case (17), a wedge-shaped slider (18), a compression spring (19), and an unlocking rope (13), the friction lock cylinder is the wedge-shaped slider (18), the unlocking mechanism is the unlocking rope (13), the parts structure and assembly relationship are that the lock case (17) has a lock hole for penetrating the upright (1) and an inner cavity for accommodating the wedge-shaped slider (18) and the compression spring (19), the right side of the inner cavity is an inner inclined plane with oblique angle, the wedge-shaped slider (18) is clamped between the inner inclined plane and the upright (1), the oblique angle of the wedge-shaped slider (18) is also the condition that the compression spring (19) is arranged between the bottom surface of the inner cavity of the lock case (17) and the bottom surface of the wedge-shaped slider (18) and continuously presses the wedge-shaped slider (18) upwards, the oblique angle is small enough that the wedge-shaped slider (18) can form friction self-locking condition with the, the upper end of the unlocking rope (13) is connected with the lower end of the wedge-shaped sliding block (18) and penetrates out of the lock shell (17) downwards.

7. Mosquito net stand with columns and sliding locks according to claim 2, characterized in that the upright (1) further comprises a base (22) fixed to the ground and a top (16) fixed to the ceiling, the top (16) and the base (22) being adapted to horizontally constrain the top end of the upright (1) and the lower end of the column (15), respectively.

Technical Field

The invention relates to the technical field of household mosquito net devices, in particular to a support structure of a mosquito net.

Background

In the existing commercial household mosquito net devices with brackets, a plurality of mosquito net brackets are composed of 1 to 4 pillars and a frame at the top of the mosquito net (hereinafter referred to as top frame). Because textile cloth parts (hereinafter referred to as mosquito net cloth parts) of the mosquito net need to be detached and washed at regular time in the using process, most of mosquito net top frames are supported and fixed by the pillars at the height that a user can conveniently detach and mount the mosquito net cloth parts when standing on a floor or a bed surface, the mosquito net cloth parts are inconvenient to detach and mount when the height exceeds 2.3 meters, namely 1.8 meters (people stand on the floor) to 2.3 meters (people stand on the bed surface); the mosquito net with the top frame lower than 2.3 m in height can obviously shield indoor sight even if the curtain of the mosquito net is folded and hung or moved to a position close to a wall, so that the bedroom space is crowded; in order to overcome the drawback of obstructing the movement by blocking the sight, some types of mosquito net devices fix the top frame to a height against the ceiling, such as the CN95213738.0 utility model entitled "lift-hidden type decorative mosquito net" and the CN96245927.5 utility model entitled "lift-type decorative mosquito net", but one of the obvious disadvantages of this type of mosquito net device is that the top frame is higher than the height that the user can stand on the bed surface, and the mosquito net cloth piece needs to be lifted for washing and putting back, which is particularly inconvenient; the mosquito net device is also required to be operated by ascending a height, if the ceiling is a cement concrete floor, a special tool capable of drilling holes in the cement floor is required to be used for drilling holes for installation, most users cannot install the mosquito net device by self, the labor cost for installing the mosquito net device by professional personnel is higher, the mosquito net device is invented and sold in the market for 25 years, but no good scheme capable of overcoming the defects is provided at present, and the majority of mosquito net devices sold in the market at present are of the type that the height of a top support is about 2 meters.

In the mosquito net device with the bracket, which can be self-installed by a user, a common structure that four pillars or two pillars or even one pillar supports the top frame of the mosquito net is adopted. The mosquito net frame with four pillars is stable, but has the defect that one or two pillars stand in the center of a bedroom to obstruct the movement and divide the space; the mosquito net support with one or two struts reduces the strut at the center of a bedroom compared with the mosquito net support with four struts, has the advantages that the strut at the center of the bedroom is prevented from obstructing the movement and dividing the view of the bedroom, but has the defect that the top frame and the strut form a cantilever type supporting structure, the cantilever type supporting structure is a supporting form which is not beneficial to structural rigidity and structural strength, the mosquito net curtain is pulled downwards at one side far away from the strut, great vertical shaking is easily generated, even the member of the mosquito net support is bent and damaged, and the requirement on the rigidity of the strut and the top frame is much higher. Thus, the prior art is in need of improvement and advancement.

Disclosure of Invention

The invention aims to overcome and improve the defects of the mosquito net support structure in the background technology and provides a mosquito net support with a pillar and a sliding lock, which has the following characteristics.

Firstly, the top frame of the mosquito net is usually installed to the height which can not be reached by the hands of people standing on the ground and is attached to the ceiling, and a user can conveniently descend, ascend and fix the top frame when standing on the floor, so that the user can stand on the floor to detach and install back the mosquito net cloth piece by hands, and the top frame is convenient to install and detach.

Secondly, the length of the support post of the same mosquito net device can be adjusted in a stepless way to adapt to different ceiling heights.

Thirdly, the upper end of the support is convenient to be fixed on the ceiling, and the lower end of the support is convenient to be fixed on the floor, so that the rigidity of the support and the stability of the whole mosquito net support structure are improved.

Fourthly, the user can conveniently install, disassemble and maintain the device by self.

The purpose of the invention is realized by the following technical scheme.

The technical scheme 1: the mosquito net frame with the support post and the slide lock comprises a top frame and at least one support post and is characterized in that the support post is a vertical post with fixed length, each vertical post is provided with a slide lock, and the top frame and the gravity borne by the top frame are transmitted to the vertical post through the slide lock; the sliding lock consists of a lock shell, a compression spring, an unlocking mechanism and a friction lock cylinder, wherein the posture or the position of the friction lock cylinder in the lock shell determines whether the sliding lock is in a locking state or an unlocking state; when the lock is in an unlocking state, the friction lock cylinder is in a position or posture which is not contacted with the upright post or can not be tightly contacted with the upright post, and the lock shell can freely slide up and down along the upright post; when the lock is in a locked state, the friction lock cylinder is positioned at a position which can receive the gravity borne by the lock shell and is also positioned at a position or posture which is pressed against the upright post and can form a friction self-locking relation with the upright post, the gravity borne by the lock shell is transmitted to the friction lock cylinder and then transmitted to the upright post by friction resistance, the larger the gravity is, the larger the pressure of the friction lock cylinder on the upright post is, the larger the friction resistance generated by the pressure is, and the friction resistance is always larger than the gravity transmitted to the lock shell by the top frame; the pressing spring pushes the friction lock core to the position or the posture of the pressing upright post, so that the normal state of the sliding lock is a locking state; the unlocking mechanism is connected with a friction lock cylinder in the lock shell, and pushes or pulls the part of the unlocking mechanism exposed out of the lock shell, so that the unlocking mechanism can be driven to overcome the pressure of a compression spring to convert the friction lock cylinder to a posture or a position which is not contacted with an upright post or can not be tightly contacted, the slide lock is converted to an unlocking state, the lock shell and a top support supported by the lock shell can be manually lifted or dropped under the condition of not being hindered by braking friction force, and the part of the unlocking mechanism exposed out of the lock shell can be a force point for manually controlling the slide lock to lift or drop.

The working principle is that a person stands on the floor to install the mosquito net cloth piece on the top frame, and can push the high slide lock by the aid of the clothes-airing fork and release the hand after the top frame reaches a certain height when the hand is not high enough, the slide lock can be automatically locked at the height after releasing the hand, and if only one upright post of the mosquito net support can push the top frame to the daily use height which is close to the ceiling at one time; if the mosquito net support is provided with two or more upright posts, each sliding lock can be pushed up in turn until the top frame is horizontally attached to the ceiling; when the mosquito net cloth piece is to be disassembled and washed, the slide lock positioned at the position out of reach of the hand is unlocked by the clothes-airing fork, the slide lock and the top frame are controlled to slowly fall to the floor, so that the mosquito net cloth piece can be conveniently disassembled and assembled, and more than two upright posts can fall by one section of each slide lock in turn until the top frame is completely descended to the height convenient for disassembling and assembling the mosquito net cloth piece.

In the invention, the upright column is a single part, specifically a column body with fixed length, and the support column can be a single part or a component consisting of a plurality of parts, specifically, the support column can comprise upright columns, pipe columns, sliding locks and other parts.

Improved technical scheme 2: on the basis of the technical scheme 1, the support column is telescopic in length and comprises an upright column with fixed length, a tubular column and a second slide lock, the structure and the size of the second slide lock are completely the same as those of the slide lock, the section of an inner hole of the tubular column is slightly larger than that of the upright column, the assembly sequence is that the posture of the second slide lock and the posture of the slide lock are reversed, and the upright column sequentially penetrates through the slide lock and the second slide lock from top to bottom and then is inserted into the inner hole of the tubular column.

The working principle is that the second sliding lock can automatically lock the upright column to prevent the upright column from sliding downwards relative to the second sliding lock, vertical downward pressure borne by the upright column is transmitted to the tubular column through the second sliding lock, and the upright column can be lifted or lowered relative to the second sliding lock after the second sliding lock is unlocked.

Improved technical scheme 3: on the basis of technical scheme 2, the telescopic pillar of length, except containing stand, tubular column, the smooth lock of second, still include screw rod and nut in addition, the screw rod center has the hole of matcing with the stand, the screw hole bottom of nut reduces to be less than the tubular column and with the hole of stand matcing, in the screw rod screw in nut, the stand just inserts the tubular column after inserting and passing screw rod and nut in the below of the smooth lock of second.

The working principle is that after the top end of the upright post rises to be close to a ceiling and locked, the nut and the screw rod are rotated manually to enable the total length of the screw rod and the nut to be lengthened and prop against the second sliding lock to rise, so that the upright post upwards props against the ceiling, and the pipe column downwards presses the floor, the pressure of the upright post and the pipe column on the ceiling and the floor can generate friction resistance, the two friction resistances can prevent the upper end of the upright post and the lower end of the pipe column from horizontally moving, and the upright post is kept to stably stand by itself; the nut screw is rotated manually to shorten the total length of the screw and the nut by a few millimeters, the upright column does not press the ceiling any more, then the second sliding lock is unlocked, and the upright column falls into the bottom of the tubular column under the action of self weight.

The technical scheme 4 is as follows: the slide lock in the technical scheme 1, the technical scheme 2 and the technical scheme 3 comprises a lock shell 3, a compression spring 4, a lock handle 5 and a lock shaft 6, wherein the lock shell 3 and the lock handle 5 are provided with shaft holes matched with the lock shaft 6, and the lock shaft 6 penetrates through the shaft holes of the lock shell 3 and the lock handle 5 to enable the lock handle 5 to rotate around the lock shaft 6; the friction lock core is formed by arranging a lock shaft 6 and a lock handle 5 on the left side part of the lock shaft 6, and the unlocking mechanism is formed by arranging the lock handle 5 on the right side part of the lock shaft 6; the pressing spring 4 pushes the lock shell 3 upwards and presses the lock handle 5 downwards at the right side of the shaft hole of the lock handle 5; the left end of the lock handle 5 is an involute curved surface or an elliptic curved surface taking the shaft hole as a radius center, the radius of the upper half part of the curved surface is smaller than that of the lower half part, when the right end of the lock handle 5 is in a high position (namely, when the lock handle 5 pushes the lock shell 3 upwards), the radius of the closest part of the lock handle 5 and the upright post 1 is slightly smaller than the distance from the lock shaft 6 to the surface of the upright post, and when the right end of the lock handle 5 is in a low position (namely, when the lock handle 5 presses the lock shell 3 downwards), the radius of the contact part of the lock handle 5 and the upright post 1 is slightly larger than the distance from the lock shaft 6 to the surface of the upright post; when the right end of the lock handle 5 is in a high position and the upward external force acting on the right end of the lock handle 5 is equal to the downward acting force of the top frame 2 on the lock shell 3, the clockwise torque generated by the pressure of the pressure spring 4 on the shaft hole is smaller than the anticlockwise torque generated by the upward external force acting on the right end of the lock handle 5 on the shaft hole.

The working principle is that because the lock handle 5 is always pressed by the pressure spring 4 and the clockwise torque generated by the pressure, the curved surface (the radius of which is larger than the distance between the lock shaft 6 and the wall surface of the upright post 1) of the lower half part of the left end of the lock handle 5 is turned to the position contacted with the wall surface of the upright post 1 to press against the upright post 1, the pressure between the lock handle 5 and the upright post 1 and the pressure between the lock shell 3 and the upright post 1 generated by the press of the lock handle 5 against the upright post 1 generate frictional resistance to prevent the lock shell 3 and the lock handle 5 from sliding downwards, when the lock shell 3 bears the gravity transmitted from the top frame 2 to drive the lock handle 5 to descend, the frictional resistance acting on the lock handle 5 and the downward pressure transmitted to the lock handle 5 by the lock shaft 6 form the clockwise torque to push the lock handle 5 to rotate, so that the lower part with the larger radius of the left end of the lock handle 5 further rotates upwards to the position of the upright post 1 to enable the pressing force of, thereafter the slide lock locks the upright post 1 so as to transmit the downward acting force of the top frame 2 on the lock shell 3 to the upright post 1 completely; a person pushes the right end of the lock handle 5 upwards by hand or external force provided by the clothes-airing fork 7 to enable the lock handle 5 to rotate anticlockwise, the compression spring 4 is compressed, the upper half part curved surface with smaller radius at the left end of the lock handle 5 turns to a position contacted with the upright post 1, the lock handle 5 is separated from the upright post 1 to be unlocked, at the moment, the clothes-airing fork 7 continuously pushes the lock handle 5 upwards to push the lock shell 3 and the top frame 2 to lift, if the clothes-airing fork 7 keeps supporting force on the right end of the lock handle 5 and slowly moves downwards, clockwise torque generated by pressure of the compression spring 4 to a shaft hole is smaller than anticlockwise torque generated by upward thrust of the clothes-airing fork 7 to the shaft hole, the compression spring 4 still keeps a compression state, the right end of the lock handle 5 is still at a high position to enable the slide lock to still be in an unlocking state, and the lock handle 5 and the lock shell 3 can move downwards under the downward acting force of the top frame 2; after the clothes airing fork is lifted or lowered to a certain expected height, the supporting force of the clothes airing fork 7 on the lock handle 5 is quickly removed, and the compression spring 4 pushes the lock handle 5 to rotate clockwise, so that the lock handle 5 quickly presses the upright post 1 to lock the upright post 1 again.

The technical scheme 5 is as follows: the slide lock of technical proposal 1, technical proposal 2 and technical proposal 3 is composed of a lock shell 12, a bolt 10, a compression spring 11, an unlocking rope 13 or an unlocking push rod 9 and an unlocking handle 8, the friction lock cylinder is a lock tongue 10, the unlocking mechanism is an unlocking rope 13 or an unlocking push rod 9 and an unlocking handle 8, the parts are structurally and integrally assembled, the lock shell 12 is provided with a lock hole for penetrating the upright post 1 and an inner cavity for accommodating the lock tongue 10 and a pressure spring 11, the inner cavity is communicated with the side wall of the lock hole, the left end of the lock tongue 10 pushes the upper right corner of the inner cavity of the lock tongue 10 towards the right end of the upright post 1, the pressure spring 11 is arranged between the bottom surface of the inner cavity of the lock shell 12 and the lower surface of the lock tongue 10 and continuously pushes the lock tongue 10 upwards, the length of the lock tongue 10 is slightly larger than the distance from the upper left corner of the inner cavity of the lock shell 12 to the upright post 1, and the included angle beta between the lock tongue 10; the upper end of the unlocking rope 13 is connected with the lower end of the bolt 10 and penetrates out of the lock shell 12 downwards. Or, the combination of the unlocking push rod 9 and the unlocking handle 8 replaces the unlocking rope 13, the unlocking push rod 9 is adopted to press the bolt 10 downwards to penetrate out of the lock shell 12 upwards, the unlocking push rod 9 is pressed at the left end of the unlocking handle 8, and the middle of the unlocking push rod is hinged with the lock shell 12.

The working principle is that the compression spring 11 continuously presses the bolt 10 to enable the left end of the bolt 10 to press the right end of the upright post 1 to press the upper right corner of the inner cavity of the lock case 12, the pressure of the contact part between the bolt 10 and the upright post 1 generates frictional resistance, when the lock case 12 bears the downward acting force of the top frame 2, downward thrust is generated on the right end of the bolt 10, meanwhile, the existing frictional resistance generated between the bolt 10 and the upright post 1 due to the thrust of the compression spring 11 can prevent the bolt 10 from moving downwards, so that the bolt 10 tends to rotate clockwise due to the torque formed by two forces, but the inner wall of the lock case 12 and the wall surface of the upright post 1 limit the clockwise rotation of the bolt 10 to generate two horizontal thrusts in opposite directions on the two ends of the bolt 10, and because the included angle beta between the bolt 10 and the wall surface of the upright post 1 is large enough to meet the condition of forming frictional self-locking, the frictional resistance generated by the horizontal thrust of the upright post 1 to the bolt 10 is always larger than the Sliding so as to be unable to move downwards against the lock casing 12, and finally enabling the downward force exerted by the top frame 2 on the lock casing 12 to be transmitted to the upright 1; the user pushes the right end of the unlocking handle 8 upwards by the clothes fork 7, the unlocking push rod 9 is pressed down to push the lock tongue 10 to rotate anticlockwise, the lock tongue 10 is separated from the upright post 1, the slide lock is in an unlocking state at the moment, the clothes fork 7 is continuously pushed up, the slide lock and the top support 2 are pushed up, the clothes fork 7 is slowly lowered, the slide lock and the top support 2 are slowly lowered, the support of the right end of the unlocking handle 8 by the clothes fork 7 is quickly removed after the slide lock and the top support are lifted or lowered to any height, and the lock tongue 10 is pushed back to the position of the top pressure upright post 1 by the pressure spring 11 to lock the upright post 1 again; it is clear that the effect of lifting the unlocking collar 14 with the fork 7 is also the same as lifting the unlocking handle 8. In order to improve the frictional resistance between the bolt 10 and the upright post 1, the left end of the bolt 10 can be made relatively sharp, the surface of the upright post 1 is preferably rough, and the surface hardness of the upright post 1 is preferably softer than that of the bolt 10.

The technical scheme 6 is as follows: the technical scheme 1, the technical scheme 2 and the technical scheme 3 are that the slide lock comprises a lock shell 17, a wedge-shaped sliding block 18, a compression spring 19 and an unlocking rope 13, the friction lock cylinder is the wedge-shaped sliding block 18, the unlocking mechanism is the unlocking rope 13, the parts are structurally and integrally assembled, the lock shell 17 is provided with a lock hole for penetrating into the upright post 1 and an inner cavity for accommodating the wedge-shaped sliding block 18 and the compression spring 19, the right side of the inner cavity is an inner inclined plane with an oblique angle, the wedge-shaped sliding block 18 is clamped between the inner inclined plane and the upright post 1, the oblique angle of the wedge-shaped sliding block 18 is also the oblique angle, the compression spring 19 is arranged between the bottom surface of the inner cavity of the lock shell 17 and the bottom surface of the wedge-shaped sliding block 18 and continuously pushes the wedge-shaped sliding block 18 upwards, the oblique angle is smaller than the condition that the wedge-shaped sliding block 18 can form.

The working principle is that the pushing force of the compression spring 19 causes the inclined surface of the wedge-shaped sliding block 18 to press the inner inclined surface of the lock shell 17, the pressing force can be divided into a horizontal component and a downward component for the wedge-shaped sliding block 18, the horizontal component is pressed on the surface of the upright post 1 to generate frictional resistance, and because the angle meets the condition of forming frictional self-locking, the frictional resistance of the wedge-shaped sliding block 18 and the upright post 1 is always larger than the downward component of the extrusion force born by the wedge-shaped sliding block 18, the wedge-shaped sliding block 18 is prevented from sliding downwards by the frictional resistance, and thus the lock case 17 is prevented from sliding downwards, the vertical pressure of the top frame 2 received by the lock case 17 is converted into a pressing force on the wedge-shaped sliding block 18 through the inner slope of the lock case 17, which in turn translates into a greater frictional resistance of the wedge slider 18 against the upright 1, so that the vertical pressure transmitted by the top frame 2 through the lock housing 17 to the wedge slider 18 is transmitted to the upright 1 in its entirety. In order to improve the frictional resistance between the wedge-shaped sliding block 18 and the upright post 1, the contact surface of the wedge-shaped sliding block 18 and the upright post 1 can be provided with teeth, the surface of the upright post 1 is preferably rough, and the surface hardness of the upright post 1 is preferably softer than that of the wedge-shaped sliding block 18.

Improved technical scheme 7: the prop according to claim 2, further comprising a base 22 fixed to the ground and a top base 16 fixed to the ceiling, wherein the top base 16 and the base 22 are respectively used for horizontally restraining the top end of the upright 1 and the lower end of the tubular column 15.

The working principle is that the lower end of the column is inserted into the base, the second sliding lock is pressed on the top of the column by the left hand to unlock the column, the right hand upwards raises the column and inserts the top seat, the left hand is firstly released after the column is inserted into the top seat, then the right hand column is released, the column can be automatically locked by the second sliding lock and can not slide downwards to keep the top seat inserted, so that the top end of the column and the lower end of the column are restrained by the top seat and the base and can not horizontally move to keep stable self-support, and the top end of the column can be restrained to improve the rigidity. If a screw is used for fixing the top seat and a strong double-faced adhesive is used for fixing the base, the installation and construction are more convenient, the damage to the ceiling is small, and the ceiling is easy to accept by consumers.

Compared with the background technology, each technical scheme of the invention has the following main advantages:

1. the top frame of the technical scheme 1 can be lifted to the height (usually, the height which can not be reached by a person standing on the ground) attached to the ceiling to avoid the defect that the sight line is obstructed due to the low top of the mosquito net, the top frame can be conveniently descended, lifted and fixed by a tool such as a clothes fork or a stick when the person stands on the floor, the mosquito net cloth piece and the top frame can be disassembled and assembled when the person stands on the floor after the top frame is descended, the whole process of disassembling, washing and maintaining the mosquito net of a user does not need climbing operation, the defect that any person needs climbing operation when the existing mosquito net with the top frame attached to the ceiling is disassembled, the mosquito net cloth piece can be disassembled, washed and the first invention purpose is realized.

2. The support column in the technical scheme 2 can be used for stepless height adjustment, the support column of the same mosquito net can adapt to different ceiling heights, the adjustment range almost covers the ceiling height range of the existing urban and rural residences, the first invention and the second invention are realized, and a foundation is also provided for realizing the third invention and the fourth invention.

3. The technical scheme 3 is that the mounting of the support column completely avoids climbing construction from the beginning to the end, and does not need a professional tool, and the top frame assembly of most mosquito nets does not need a professional tool, so that the mounting of a whole set of mosquito nets does not need climbing and does not need a professional tool, and all the purposes of the invention are completely realized. Obviously, the self-service installation method is particularly suitable for self-service installation of users, so that the high labor cost, transportation cost and reservation waiting time of professional personnel for home installation can be avoided.

4. In the installation of the support column in the technical scheme 7, the required tools are only screwdrivers and ladders which are available for almost every family, professional tools are not needed, and all the purposes of the invention are well realized.

5. The sliding lock adopting the same structure in the technical scheme 2 and the technical scheme 3 has two purposes, a set of moulds and part varieties are reduced in a production factory, the functional advantages of the technical scheme 1 are greatly increased, and the production cost and the management difficulty are not greatly increased; the same support of the same mosquito net device can be used for most urban and rural users, and is beneficial to reducing the inventory quantity and the inventory management difficulty of production and sales enterprises. Thus facilitating commercial competition.

Drawings

FIG. 1 is a sectional view of the assembled parts of the first embodiment.

FIG. 2 is a sectional view of the second embodiment after the parts are assembled.

FIG. 3 is a sectional view of the third embodiment after the respective parts are assembled.

Figure 4 is a schematic view of the mosquito net stand of the present invention using four pillars.

Figure 5 is a schematic view of the mosquito net stand of the present invention having only one support post.

Description of reference numerals:

in figure 1, 1-upright post, 2-top frame, 3-lock shell, 4-compression spring, 5-lock handle and 6-lock shaft, and the parts for forming the slide lock are 3-lock shell, 4-compression spring, 5-lock handle and 6-lock shaft.

In fig. 2, 1-upright post, 2-top frame, 15-pipe column, 16-top seat, 22-base, first slide lock and second slide lock, the parts composing the first slide lock are: 10-bolt, 11-compression spring, 12-lock shell, 13-unlocking rope and 14-unlocking ring; 9-unlocking push rod and 8-unlocking handle; the parts forming the second slide lock are: 10 a-bolt, 11 a-compression spring, 12 a-lock shell, 13 a-unlocking rope.

In fig. 3, 1-upright post, 2-top frame, 20-screw, 21-nut, 15-pipe column, 16-top seat, 22-base, first slide lock and second slide lock, the parts of the first slide lock are: 17-lock shell, 18-wedge slide block, 19-compression spring, 13-unlocking rope 13; the parts forming the second slide lock are: 17 a-lock case, 18 a-wedge slider, 19 a-compression spring, 13 a-unlocking rope.

In fig. 4, 1-column, 2-top frame, 3S-slide lock.

In fig. 5, 1-column, 2-top frame, 3S-slide lock.

In the various embodiments and figures, 7-clothes fork, 24-ceiling, 23-floor.

Detailed Description