Retractable door fence

Abstract

The utility model discloses a retractable door fence which comprises shaft seats which are arranged up and down at intervals and a hook piece on the other side, a reel is rotatably arranged between the two shaft seats, retractable cloth is wound on the reel, and a fixing ring which can be hung on the hook piece is arranged at the outer end of the retractable cloth. A control part, a locking part and a rotating part are arranged in the upper shaft seat, a winding mechanism for driving the winding shaft to wind the telescopic cloth back is arranged in the winding shaft, and a locking mechanism capable of locking rotation of the winding shaft is arranged in the shaft seat located at the top. The locking mechanism is simple in structure and is formed by arranging the control part, the locking part and the rotating part in the upper shaft seat. The telescopic cloth is simply and rapidly controlled to stretch out, draw back and lock, no complex linkage mechanism exists, and the risk that a locking mechanism breaks down and is damaged is reduced. Due to the fact that parts are few and the structure is simple, production, manufacturing and assembling are simpler. Parts in the locking mechanism are not easy to damage or lose efficacy, so that the durability of the retractable door fence is ensured.

Description

Technical Field

[0001] The utility model relates to the field of safety gate rails, in particular to a telescopic gate rail. Background Art

[0002] Safety gates are essential items for families with young children or pets, and they play a vital role. They can effectively divide the space and separate pets from human living areas to ensure the safety of young children and the management of pets. Young children are curious by nature and often venture into some potentially dangerous areas, such as kitchens or stairways, which undoubtedly poses a safety hazard. For families with pets, it is also crucial to correctly divide the living space of pets and humans. Therefore, more and more families have begun to take measures to install safety gates, setting up fences at doorways or aisles to limit the areas where young children or pets may move, thereby preventing potential safety hazards. Such measures undoubtedly bring more security to families.

[0003] There are two common types of home safety gates: rigid fence-type gates and retractable cloth gates. Rigid fence-type gates have some disadvantages in terms of space occupation and are prone to collision and injury to young children. Therefore, more and more users have chosen retractable cloth gates. However, there are also some problems with the existing retractable cloth gates. The retractable cloth gates are usually composed of columns, retractable mesh, control mechanisms and hooks. The control mechanism controls the retraction and locking of the mesh. The interior is usually composed of multiple parts and involves a complex linkage mechanism. These parts include springs, pulleys, torsion springs, connecting rods, sliders, and cam parts and groove parts that cooperate with each other. They need to work well in coordination to achieve the smooth unfolding and folding of the retractable mesh. This complex linkage mechanism increases the risk of failure and damage to the control mechanism to a certain extent. For example, due to friction, wear or looseness between internal parts, the gate may become stuck when unfolding or folding. In addition, there are many parts in the control mechanism, and defects and assembly errors are prone to occur during the production and manufacturing process, resulting in mechanical parts not being able to work properly. In addition, if the control mechanism, which is complex and has many parts, is subjected to excessive force when unfolding or retracting the telescopic mesh, for example, when the user lets go of the hand during the opening process, the mesh will quickly retract and cause a collision, which can easily cause damage or failure of the parts of the control mechanism. The function of the safety gate itself is to protect the safety of people and pets. If the internal parts fall off or are damaged, it may also cause the gate to be uncontrollable, increasing the risk of accidental injury.

[0004] Therefore, the existing reel-type telescopic cloth door fence needs further optimization and improvement. Utility Model Content

[0005] The utility model aims to provide a telescopic door barrier which has a simple structure, is easy to assemble and is not prone to mechanical failure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following scheme: a telescopic door fence, including an axle seat which is arranged at an upper and lower interval and can be installed on one side facade, and a hook member installed on the other side facade, a reel is rotatably provided between the two axle seats, a telescopic cloth is wound on the reel, a fixing ring which can be hung on the hook member is provided at the outer end of the telescopic cloth, a reeling mechanism which can drive the reel to rotate and rewind the telescopic cloth again after the telescopic cloth is pulled out is provided in the reel, and a locking mechanism which can lock the rotation of the reel is provided in the axle seat located at the top.

[0007] As a further solution of the present invention, the shaft seat includes an upper shaft seat and a lower shaft seat arranged at an interval, a shaft rod is provided between the upper shaft seat and the lower shaft seat, the bottom end of the shaft rod is fixed to the lower shaft seat, the reel is tubular and rotatably sleeved on the shaft rod, the top and bottom of the reel are respectively rotatably connected to the upper shaft seat and the lower shaft seat, the winding mechanism includes a coil spring accommodated in the reel and sleeved on the shaft rod, the top of the coil spring is connected and fixed with a clamp that can be rotatably sleeved on the shaft rod, the clamp and the reel are connected and fixed to each other, the bottom end of the coil spring is fixed on the shaft rod, and the locking mechanism is arranged on the upper shaft seat.

[0008] As a further solution of the present invention, the locking mechanism includes an axial cavity arranged in the upper shaft seat, the top and bottom of the upper shaft seat are symmetrically penetrated by through holes that can be connected to the axial cavity, the through hole is coaxial with the reel, a rotating member coaxial with the through hole is rotatable in the axial cavity, the bottom end of the rotating member passes through the through hole at the bottom and is connected and fixed to the top of the reel, a locking member that cannot rotate and can only move up and down in the axial cavity is provided above the rotating member, a first spring is provided between the rotating member and the locking member, an annular tooth is provided at the bottom of the locking member along the axis, an annular groove that can mesh with the annular tooth is provided at the top of the rotating member, a plurality of fixed blocks with a pressure inclined surface at the top are provided in sequence along the circumference at the top of the locking member, a control member coaxial with the locking member and rotatable in the axial cavity is provided above the locking member, extrusion blocks are provided at the bottom of the control member at intervals from beginning to end along the circumference, the bottom surface of the extrusion block is provided with an extrusion inclined surface that can be extruded against the pressure inclined surface, and the top surface of the control member is provided with a knob that can extend out of the through hole at the top.

[0009] As a further solution of the utility model, a plurality of vertical guide grooves are provided at intervals along the outer circumference of the locking member in the shaft cavity, and a plurality of vertical guide blocks that can be inserted into the corresponding vertical guide grooves are provided on the outer wall of the locking member.

[0010] As a preferred solution of the utility model, a connecting rod is provided between the upper shaft seat and the lower shaft seat on one side of the reel, an upper fixing seat that can be fixed to the vertical surface is detachably provided at the tail end of the upper shaft seat, and a lower fixing seat (which can also be fixed to the vertical surface and can move up and down along the connecting rod) is provided on the connecting rod.

[0011] As a further solution of the utility model, the upper fixed seat includes a vertical slot symmetrically arranged at the rear end of the upper shaft seat and with a closed top, a seat plate that can be pre-fixed on the vertical surface is movably inserted in the vertical slot, a card slot is provided on one side of the seat plate, and a receiving groove is horizontally arranged in the upper shaft seat, located on one side of the shaft cavity, and a bayonet is provided on the side of the receiving groove that passes through the upper fixed seat toward the seat plate, a locking block that can move forward and backward is movably provided in the receiving groove, one end of the locking block passes through the bayonet and is inserted into the slot, a second spring is pressed on the end of the locking block away from the bayonet, a toggle groove is provided on the top of the receiving groove that passes through the top surface of the upper fixed seat, and a toggle button that can extend out of the toggle groove is provided on the top of the locking block protruding upward.

[0012] As a preferred solution of the utility model, a vertical hole is penetrated on the lower fixing seat, the connecting rod passes through the vertical hole, and a fixing plate that can be fixed together with the vertical surface is provided on one side of the lower fixing seat.

[0013] As a preferred embodiment of the utility model, at least one clamping strip is vertically provided on the circumferential inner wall of the reel, a first groove capable of clamping the clamping strip is provided on the outer wall of the clamp, an upwardly protruding shaft tube is provided on the lower shaft seat, a lower shaft sleeve is inserted into the bottom of the reel, the lower shaft sleeve is rotatably sleeved on the shaft tube through a through hole vertically passing through the center, a second groove capable of clamping the clamping strip is provided on the outer wall of the lower shaft sleeve, and the bottom end of the shaft rod passes through the through hole in the center of the lower shaft sleeve and is inserted and fixed in the shaft tube.

[0014] As a preferred embodiment of the utility model, the rotating member includes an upper sleeve rotatably accommodated in the shaft cavity and a gear seat clamped on the top of the upper sleeve, the bottom end of the upper sleeve passes through the through hole located on the bottom surface of the upper shaft seat and is inserted into the reel, and a third groove capable of clamping the clamping strip is provided on the circumferential outer wall of the upper sleeve located in the reel, a plurality of insertion strips are provided at the bottom of the gear seat, and a clamping slot capable of accommodating the insertion of the insertion strip is provided at the top of the upper sleeve, and the annular groove is arranged around the top periphery of the gear seat.

[0015] In summary, the utility model has the following beneficial effects compared to the prior art: the utility model arranges a control member, a locking member and a rotating member in the upper shaft seat, and the bottom of the control member and the top of the locking member are respectively arranged with an extrusion block and a fixed block which also have inclined surfaces and can be squeezed and matched with each other. An annular tooth is arranged at the bottom of the locking member to engage or separate with the annular groove at the top of the rotating member. These three independent parts form a locking mechanism with a simple structure. The rotating control member squeezes the locking member to move up and down, thereby locking the rotating member connected to the top of the reel so that it cannot rotate. Simple and fast control of the extension and locking of the telescopic cloth is achieved without a complicated linkage mechanism, which reduces the risk of failure and damage to the locking mechanism.

[0016] The utility model has few parts and a simple structure, and is not prone to defects during the manufacturing process. The assembly is simpler, ensuring the normal operation of the mechanical parts. Even if the telescopic cloth is not pulled, it will quickly retract and collide with the upper shaft seat, which will not cause damage or failure of the parts in the locking mechanism, further ensuring the durability of the telescopic door. This design prevents the door from being uncontrollable due to the falling off or damage of parts, thereby reducing the risk of accidental injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a three-dimensional view of the telescopic cloth being hung on the hook member.

[0018] Figure 2 It is a three-dimensional view of the telescopic cloth in the utility model in the retracted state after being separated from the hook member.

[0019] Figure 3 It is a cross-sectional view of the utility model and an enlarged view of a local area in the figure.

[0020] Figure 4 This is one of the exploded views of the present invention, and an enlarged view of a local area in the figure.

[0021] Figure 5 This is the second exploded view of the utility model and an enlarged view of a local area in the figure.

[0022] Figure 6 for Figure 3 Magnified view at A in the middle.

[0023] Figure 7 for Figure 4 Magnified view at B.

[0024] Figure 8 for Figure 5 Magnified view at center C.

[0025] Description of reference numerals: 1, shaft seat; 2, reel; 3, telescopic cloth; 4, fixing ring; 5, hook member; 6, winding mechanism; 7, locking mechanism; 8, connecting rod; 9, upper fixing seat; 10, lower fixing seat; 11, upper shaft seat; 12, lower shaft seat; 13, shaft rod; 21, clamping strip; 22, lower shaft sleeve; 61, coil spring; 62, clamping member; 70, first spring; 71, shaft cavity; 72, through hole; 73, rotating member; 74, locking member; 76, control member; 91, vertical slot; 92, seat plate; 93, accommodating groove; 94, locking block; 95, bayonet; 96, second spring; 97, toggle groove; 101, vertical hole; 102, fixed plate; 121, shaft tube; 221, second groove; 621, first groove; 711, vertical guide groove; 731, annular groove; 732, upper sleeve; 733, third groove; 734, tooth seat; 736, slot; 741, annular tooth; 742, fixed block; 743, vertical guide block; 751, pressure inclined surface; 755, insert strip; 761, extrusion block; 762, extrusion inclined surface; 763, knob; 921, slot; 971, dial button. DETAILED DESCRIPTION

[0026] The following specific implementation contents provide a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0027] In addition, spatially related words may be used, such as "below", "lower side", "from the inside out", "above", "upper side" and similar words. These relative words are for the convenience of describing the relationship between one element or feature and another element or feature in the drawings. These spatially related words include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be turned to different orientations, rotated 90 degrees or other orientations, and the spatially related adjectives used therein may also be interpreted in the same way. Therefore, it cannot be understood as a limitation of the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods: Figures 1 to 8The telescopic gate shown in the figure includes an axle seat 1 which is arranged at an interval from top to bottom and can be installed on one side of the facade, and two hook members 5 which are installed on the other side of the facade. A reel 2 is rotatably arranged between the two axle seats 1, and a telescopic cloth 3 is wound on the reel 2. A fixing ring 4 which can be hung on the hook member 5 is symmetrically arranged at the outer end of the telescopic cloth 3. A reeling mechanism 6 which can drive the reel 2 to rotate and reel the telescopic cloth 3 again after the telescopic cloth 3 is pulled out is arranged in the reel 2. A locking mechanism 7 which can lock the rotation of the reel 2 is arranged in the axle seat 1 located at the top. The axle seat 1 is fixed on the facade to be installed on one side, and the two hook members 5 are fixed on the corresponding facade on the other side. When one end of the telescopic cloth 3 with the fixing ring 4 is pulled, the reel 2 rotates to pull out the telescopic cloth 3. Finally, the fixing ring 4 is hung on the corresponding hook member 5, so as to form a gate for isolating a space channel. The locking mechanism 7 locks the reel 2 so that it cannot rotate, so that the telescopic cloth 3 can be stretched straight to ensure the isolation effectiveness. When the gate needs to be opened, the locking mechanism 7 is unlocked, the fixing ring 4 is separated from the corresponding hook member 5, and the retractable cloth 3 is pulled and the retractable cloth 3 is retracted when the reeling mechanism 6 rotates to achieve the purpose of opening the gate.

[0029] Among them, Figures 1 to 8As shown, the shaft seat 1 includes an upper shaft seat 11 and a lower shaft seat 12 which are spaced apart. A connecting rod 8 is provided between the upper shaft seat 11 and the lower shaft seat 12 and located on one side of the reel 2, for connecting the upper shaft seat 11 and the lower shaft seat 12. A shaft rod 13 is provided between the upper shaft seat 11 and the lower shaft seat 12 on one side of the connecting rod 8. The bottom end of the shaft rod 13 is fixed to the lower shaft seat 12. The reel 2 is tubular and rotatably sleeved on the shaft rod 13. The top and bottom of the reel 2 are rotatably connected to the upper shaft seat 11 and the lower shaft seat 12 respectively. The winding mechanism 6 includes a coil spring 61 which is accommodated in the reel 2 and sleeved on the shaft rod 13. The top of the coil spring 61 is connected and fixed with a clamp 62 which can be sleeved on the shaft rod 13 and rotated. On the circumferential inner wall of the reel 2, a clamp 62 is provided. At least one clamping strip 21 is vertically provided, a first groove 621 capable of clamping the clamping strip 21 is provided on the outer wall of the clamping member 62, an upwardly protruding shaft tube 121 is provided on the lower shaft seat 12, a lower shaft sleeve 22 is plugged into the bottom of the reel 2, the lower shaft sleeve 22 is rotatably sleeved on the shaft tube 121 through a through hole vertically passing through the center, a second groove 221 capable of clamping the clamping strip 21 is provided on the outer wall of the lower shaft sleeve 22, and the bottom end of the shaft rod 13 passes through the through hole in the center of the lower shaft sleeve 22 and is plugged and fixed in the shaft tube 121. It should be noted that the shaft rod 13 cannot rotate relative to the shaft tube 121, and the bottom end of the coil spring 61 is fixed on the shaft rod 13. Therefore, when the reel 2 rotates, the clamp 62 will cause the coil spring 61 to rotate in place with the shaft 13 as the axis. At this time, the coil spring 61 will be twisted. When the external force applied to the reel 2 disappears, the reel 2 reverses and resets under the restoring force of the coil spring 61, thereby allowing the telescopic cloth 3 to shrink and rewind and wrap around the outside of the reel 2.

[0030] In this embodiment, in order to more conveniently install the upper shaft seat 11 and the lower shaft seat 12 on the required vertical surface, an upper fixing seat 9 that can be fixed to the vertical surface is detachably provided at the rear end of the upper shaft seat 11, and a lower fixing seat 10 that can also be fixed to the vertical surface and can move up and down along the connecting rod 8 is provided on the connecting rod 8. Specifically, the upper fixed seat 9 includes a vertical slot 91 symmetrically arranged at the rear end of the upper shaft seat 11 and having a closed top. A seat plate 92 that can be pre-fixed on the vertical surface is movably inserted in the vertical slot 91. A slot 921 is arranged on one side of the seat plate 92. A receiving slot 93 is arranged transversely in the upper shaft seat 11. A bayonet 95 is arranged on the side of the receiving slot 93 that penetrates the upper fixed seat 9 toward the seat plate 92. A locking block 94 that can move forward and backward is movably arranged in the receiving slot 93. One end of the locking block 94 passes through the bayonet 95 and is inserted into the slot 921. A second spring 96 is pressed against the end of the locking block 94 away from the bayonet 95. A toggle slot 97 is arranged on the top of the receiving slot 93 that penetrates the top surface of the upper fixed seat 9. A toggle button 971 that can extend out of the toggle slot 97 is arranged on the top of the locking block 94 and protrudes upward. The locking block 94 is toggled backward by the toggle button 971 to pull the seat plate 92 out of the vertical slot 91. First, fix one side of the seat plate 92 to the facade, or fix it to the back of the seat plate 92 with double-sided tape or a suction cup, or directly drill screw holes on the seat plate 92 and install screws to fix the seat plate 92 to the facade. Then, insert the upper shaft seat 11 into the seat plate 92 again through the vertical slot 91 to complete the fixation of the upper shaft seat 11. The lower fixing seat 10 can move up and down on the connecting rod 8, which can facilitate the lower fixing seat 10 to avoid ground obstacles such as protruding skirtings. Specifically: a vertical hole 101 is penetrated on the lower fixing seat 10, and the connecting rod 8 passes through the vertical hole 101. A fixing plate 102 that can be fixed to the facade is provided on one side of the lower fixing seat 10. The fixing method of the fixing plate 102 to the facade can refer to the fixing method of the seat plate 92.

[0031] In addition, if Figures 3 to 8As shown, the locking mechanism 7 includes an axial cavity 71 arranged in the upper shaft seat 11 and located on one side of the accommodating groove 93. The top and bottom of the upper shaft seat 11 are symmetrically penetrated with a through hole 72 that can be connected to the axial cavity 71. The through hole 72 is coaxial with the reel 2. A rotating member 73 coaxial with the through hole 72 is rotatably provided in the axial cavity 71. The bottom end of the rotating member 73 passes through the through hole 72 at the bottom and is connected and fixed to the top of the reel 2. Specifically: In this embodiment, the rotating member 73 includes an upper sleeve 732 rotatably accommodated in the shaft cavity 71 and a card The tooth seat 734 at the top of the upper sleeve 732, the bottom end of the upper sleeve 732 passes through the through hole 72 located on the bottom surface of the upper shaft seat 11 and is inserted into the reel 2. A third groove 733 capable of clamping the clamping strip 21 is provided on the circumferential outer wall of the upper sleeve 732 located in the reel 2. A plurality of insertion strips 735 are provided at the bottom of the tooth seat 734. A clamping slot 736 capable of inserting the insertion strips 735 is provided at the top of the upper sleeve 732. The upper sleeve 732 clamps the clamping strip 21 through the third groove 733 and rotates synchronously with the reel 2. The upper sleeve 732 rotates synchronously with the tooth seat 734. A locking member 74 is provided above the rotating member 73. A plurality of vertical guide grooves 711 are provided at intervals along the outer circumference of the locking member 74 in the shaft cavity 71. A plurality of vertical guide blocks 743 capable of inserting into the corresponding vertical guide grooves 711 are provided on the outer wall of the locking member 74. Since the vertical guide groove 711 and the vertical guide block 743 are matched and plugged together, the locking member 74 cannot rotate and can only move up and down in the shaft cavity 71. A first spring 70 is provided between the top of the tooth seat 734 and the bottom of the locking member 74. An annular tooth 741 is provided at the bottom of the locking member 74 along the axis, and an annular groove 731 that can mesh with the annular tooth 741 is provided on the top periphery of the tooth seat 734. A plurality of fixing blocks 742 are provided in sequence along the circumference at the top of the locking member 74. The top of the fixing block 742 has a pressure inclined surface 751. A control member 76 that is coaxial with the locking member 74 and can rotate in the shaft cavity 71 is provided above the locking member 74. Extrusion blocks 761 are provided at intervals from beginning to end at the bottom of the control member 76 along the circumference. The bottom surface of the extrusion block 761 is provided with an extrusion inclined surface 762 that can be pressed against the pressure inclined surface 751. The top surface of the control member 76 is provided with a knob 763 that can extend out of the top through hole 72. The control member 76 is rotated by the knob 763 to make the pressing inclined surface 762 press the pressing inclined surface 751, so that the locking member 74 moves downward. After the locking member 74 moves downward, the annular tooth 741 meshes with the annular groove 731. Since the locking member 74 cannot rotate, the rotating member 73 composed of the upper sleeve 732 and the tooth seat 734 will not rotate, and the reel 2 connected and fixed to the upper sleeve 732 will not rotate. In this way, the reel 2 can be locked in rotation.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A telescopic door barrier, comprising an axle seat (1) arranged at an interval between the upper and lower sides and capable of being mounted on a side elevation, and a hook member (5) mounted on the other side elevation, a reel (2) being rotatably arranged between the two axle seats (1), a telescopic cloth (3) being wound on the reel (2), and a fixing ring (4) being capable of being hung on the hook member (5) being arranged at the outer end of the telescopic cloth (3), characterized in that: A reeling mechanism (6) is provided in the reel (2) and can drive the reel (2) to rotate and reel the retractable cloth (3) again after the retractable cloth (3) is pulled out. A locking mechanism (7) is provided in the shaft seat (1) located at the top and can lock the rotation of the reel (2). The shaft seat (1) comprises an upper shaft seat (11) and a lower shaft seat (12) arranged at a distance. A shaft rod (13) is provided between the upper shaft seat (11) and the lower shaft seat (12). The bottom end of the shaft rod (13) is fixed to the lower shaft seat (12). The reel (2) is tubular and rotatably sleeved on the shaft rod (13). The top and bottom of the reel (2) are respectively connected to the upper shaft seat (11) and the lower shaft seat (12). The lower shaft seat (12) is rotatably connected, the winding mechanism (6) includes a coil spring (61) accommodated in the reel (2) and sleeved on the shaft (13), the top of the coil spring (61) is connected and fixed with a clamp (62) that can be sleeved on the shaft (13) and rotatable, the clamp (62) and the reel (2) are connected and fixed to each other, the bottom end of the coil spring (61) is fixed to the shaft (13), the locking mechanism (7) is arranged on the upper shaft seat (11), the locking mechanism (7) includes an axial cavity (71) arranged in the upper shaft seat (11), and the top and bottom of the upper shaft seat (11) are symmetrically penetrated by a A through hole (72) is provided, the through hole (72) being coaxial with the reel (2); a rotating member (73) coaxial with the through hole (72) is rotatably provided in the shaft cavity (71); the bottom end of the rotating member (73) passes through the through hole (72) at the bottom and is connected and fixed to the top of the reel (2); a locking member (74) which cannot rotate but can only move up and down in the shaft cavity (71) is provided above the rotating member (73); a first spring (70) is provided between the rotating member (73) and the locking member (74); an annular tooth (741) is provided at the bottom of the locking member (74) along the axis; and a spring (741) which can rotate is provided at the top of the rotating member (73). An annular groove (731) meshed with the annular tooth (741); a plurality of fixing blocks (742) having a pressure inclined surface (751) on the top of the locking member (74) are sequentially arranged along the circumference; a control member (76) coaxial with the locking member (74) and rotatable in the shaft cavity (71) is arranged above the locking member (74); extrusion blocks (761) are sequentially arranged at intervals from end to end on the bottom of the control member (76) along the circumference; an extrusion inclined surface (762) capable of being mutually extruded with the pressure inclined surface (751) is arranged on the bottom surface of the extrusion block (761); and a knob (763) capable of extending out of a through hole (72) located at the top is arranged on the top surface of the control member (76).

2. A telescopic door fence according to claim 1, characterized in that: A plurality of vertical guide grooves (711) are provided at intervals along the outer circumference of the locking piece (74) in the shaft cavity (71), and a plurality of vertical guide blocks (743) that can be inserted into the corresponding vertical guide grooves (711) are provided on the outer wall of the locking piece (74).

3. A telescopic door fence according to claim 1, characterized in that: A connecting rod (8) is provided between the upper shaft seat (11) and the lower shaft seat (12) on one side of the reel (2); an upper fixing seat (9) which can be fixed to the vertical surface is detachably provided at the rear end of the upper shaft seat (11); and a lower fixing seat (10) which can also be fixed to the vertical surface and can move up and down along the connecting rod (8) is provided on the connecting rod (8).

4. A telescopic door fence according to claim 3, characterized in that: The upper fixing seat (9) comprises a vertical slot (91) symmetrically arranged at the rear end of the upper shaft seat (11) and having a closed top, a seat plate (92) which can be pre-fixed on the vertical surface is movably inserted in the vertical slot (91), a clamping groove (921) is provided on one side of the seat plate (92), and a receiving groove (93) is transversely arranged in the upper shaft seat (11) and located on one side of the shaft cavity (71), and a clamping groove (93) is provided on one side of the receiving groove (93) that passes through the upper fixing seat (9) toward the seat plate (92). 5), a locking block (94) that can move forward and backward is movably provided in the accommodating groove (93), one end of the locking block (94) passes through the bayonet (95) and is inserted into the slot (921), a second spring (96) is pressed against the end of the locking block (94) away from the bayonet (95), a toggle groove (97) is provided at the top of the accommodating groove (93) penetrating the top surface of the upper fixing seat (9), and a toggle button (971) that can extend out of the toggle groove (97) is provided on the top of the locking block (94) protruding upward.

5. A telescopic door fence according to claim 4, characterized in that: A vertical hole (101) is formed through the lower fixing seat (10), and the connecting rod (8) passes through the vertical hole (101). A fixing plate (102) capable of being fixed to the vertical surface is provided on one side of the lower fixing seat (10).

6. The telescopic gate according to claim 1, characterized in that: At least one clamping strip (21) is vertically arranged on the circumferential inner wall of the reel (2); a first groove (621) capable of clamping the clamping strip (21) is arranged on the outer wall of the clamping member (62); an upwardly protruding shaft tube (121) is arranged on the lower shaft seat (12); a lower shaft sleeve (22) is inserted into the bottom of the reel (2); the lower shaft sleeve (22) is rotatably sleeved on the shaft tube (121) through a through hole vertically passing through the center; a second groove (221) capable of clamping the clamping strip (21) is arranged on the outer wall of the lower shaft sleeve (22); and the bottom end of the shaft rod (13) passes through the through hole in the center of the lower shaft sleeve (22) and is inserted and fixed in the shaft tube (121).

7. A telescopic gate according to claim 6, characterized in that: The rotating member (73) comprises an upper shaft sleeve (732) rotatably accommodated in the shaft cavity (71) and a tooth seat (734) clamped on the top of the upper shaft sleeve (732); the bottom end of the upper shaft sleeve (732) passes through a through hole (72) located on the bottom surface of the upper shaft seat (11) and is inserted into the reel (2); a third groove (733) capable of clamping the clamping strip (21) is provided on the circumferential outer wall of the upper shaft sleeve (732) located in the reel (2); a plurality of insertion strips (735) are provided at the bottom of the tooth seat (734); a clamping slot (736) capable of accommodating the insertion strips (735) is provided at the top of the upper shaft sleeve (732); and the annular groove (731) is arranged around the top periphery of the tooth seat (734).

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