CN114704158B

CN114704158B - Reverse anti-disassembly screw handle

Info

Publication number: CN114704158B
Application number: CN202210370603.5A
Authority: CN
Inventors: 顾海骏; 顾德成; 汤晴焱; 过奕帆; 张红; 齐小凡; 梁钧
Original assignee: Wuxi Ruiding Power Technology Co ltd
Current assignee: Wuxi Ruiding Power Technology Co ltd
Priority date: 2022-04-10
Filing date: 2022-04-10
Publication date: 2023-04-28
Anticipated expiration: 2042-04-10
Also published as: CN114704158A

Abstract

The invention relates to a reverse anti-disassembly screw handle which comprises a mounting part, wherein a handle is arranged on one side of the mounting part, at least two screws are arranged on the other side of the mounting part, the screws penetrate through a door plate, a clamping block is slidably arranged at one end of each screw, which is close to the mounting part, and penetrates through the door plate, a nut is connected onto each screw in a threaded manner, a clamping groove with an opening facing the mounting part is formed in the nut, and the clamping block is matched with the clamping groove to limit the nut to be in a unidirectional rotation state.

Description

Reverse anti-disassembly screw handle

Technical Field

The invention relates to the technical field of door parts, in particular to a reverse anti-disassembly screw handle.

Background

The door handle is used as a common switching handheld part of various doors, when the door handle is used, the door handle is needed to be held to move the door panel away from the door frame or close to the door frame, door opening or door closing operation is realized, on some mechanical equipment, some handles are often installed to facilitate the use of operators, but the handles are often simple in structure, the used assembly screws do not have a certain protection means, when external personnel maintain the mechanical equipment, the screws are only needed to be easily unscrewed, and if the mechanical equipment is not recovered after the maintenance is finished, the equipment parts are easy to be lost;

in order to solve the above problems, the present invention proposes a screw handle for preventing disassembly.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to solve the problem that a handle is easy to disassemble in the prior art, and provides a screw handle capable of preventing disassembly so as to solve the technical problem.

(2) Technical proposal

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:

the utility model provides a reverse anti-disassembly screw rod handle, includes the installation department, one side of installation department is provided with the handle, the opposite side of installation department is provided with two at least screws, the screw rod runs through the door plant, the screw rod is close to the one end slip of installation department is provided with the fixture block, the fixture block runs through the door plant, threaded connection has the nut on the screw rod, offered the opening orientation in the nut the draw-in groove of installation department, the fixture block with the draw-in groove cooperation restricts the nut is unidirectional rotation state.

Preferably, the cross section of the clamping block is trapezoid, and the inclined plane a of the clamping block can be abutted with the opening of the clamping groove, so that the clamping block moves in a direction away from the clamping groove.

Preferably, the fixture block is arranged on the installation part, the installation part comprises a mounting ring fixedly sleeved on the screw rod, the mounting ring is positioned on one side of the door plate close to the handle, a chute with an opening facing the nut is formed in the mounting ring, the fixture block is slidably connected in the chute, and a spring is connected between the fixture block and a side wall of the chute close to the handle. The installation department still include with the rotating member that the handle is connected, the rotating member include with collar fixed connection's fixed disk, the last rotation of fixed disk is connected with the rotating disk, the handle with rotating disk fixed connection.

Preferably, the rotating member further comprises a T-shaped chute provided in the fixed disc, an opening of the T-shaped chute faces the rotating disc, two symmetrically arranged T-shaped sliding blocks are fixedly connected to the rotating disc, and the T-shaped sliding blocks are slidably connected to the T-shaped chute.

Preferably, an oil cavity with two open ends is formed in the screw rod, an oil duct is communicated between the oil cavity and the T-shaped sliding groove, an oil rod is connected in the oil cavity in a sliding mode, a return spring is connected between the oil rod and a side wall, close to the fixed disc, of the oil cavity, an oil groove with two open ends is formed in the oil rod, the axis of the oil groove is coaxial with the axis of the screw rod, a one-way valve is arranged in the oil groove, and the flow direction of the one-way valve is that the one end, away from the installation portion, of the oil groove is that the one end, close to the installation portion, of the oil groove is that the one end of the installation portion is that the one end of the oil groove is far away from.

Preferably, a communication groove is formed between the sliding groove and the oil cavity, a supporting rod is slidably connected in the communication groove, one end of the supporting rod is fixedly connected with the clamping block, and the other end of the supporting rod can be in supporting connection with the oil rod.

Preferably, the mounting portion further comprises a sterilizing member, the sterilizing member comprises a cylinder fixedly connected to the fixed disc, the cylinder is coaxial with the fixed disc, a rotating shaft is fixedly connected to the center of the rotating disc, the rotating shaft extends to penetrate into the cylinder, a baffle is fixedly connected between one end of the cylinder, which is close to the door plate, and the fixed disc, a pushing plate is fixedly connected to the rotating shaft, one end of the baffle is abutted to the inner wall of the cylinder, the other end of the baffle is abutted to the rotating shaft, a nozzle is arranged on the cylinder, which is close to one side wall of the fixed disc, and extends to the fixed disc, and the nozzle faces the handle.

Preferably, the disinfection piece further comprises a liquid inlet pipe communicated with the cylinder, a circular ring is arranged between the fixed disc and the door plate, so that a closed space is formed between the circular ring and the door plate and between the circular ring and the fixed disc, the liquid inlet pipe extends into the closed space, and a liquid pump is arranged in the liquid inlet pipe.

Preferably, the disinfection piece further comprises a liquid inlet channel communicated with the top end of the circular ring.

(3) The beneficial effects are that:

1. through the nut with the setting of installation department, the nut rotate gradually on the screw rod to the installation department is close to, will the door plant is held, thereby makes the handle can fix on the door plant, simultaneously through the fixture block with the cooperation of draw-in groove, makes the nut with can only carry out unidirectional rotation after the fixture block contact, thereby makes the nut with the installation department is with after the door plant centre gripping, can not dismantle easily, realizes preventing the purpose of dismantling the door handle.

2. Through the arrangement of the rotating piece, a user can select the optimal holding mode according to different positions when opening the door through the handle, so that the force application direction is optimal, and the purpose of saving labor is achieved.

3. Because the working environment of the mechanical equipment is complex, the rotating piece is easy to rust in the long-term use process, so that the handle cannot normally rotate, and after the mechanical equipment is used for a certain period of time, the oil rod is pushed to move towards the direction close to the mounting part, so that lubricating oil enters the T-shaped sliding groove, the T-shaped sliding block and the T-shaped sliding groove are lubricated, and the handle can normally rotate; through the arrangement of the one-way valve, after the use of the lubricating oil in the oil cavity is finished, the lubricating oil is supplemented into the oil cavity through the one-way valve, so that the device can be recycled.

4. The oil rod is pushed by a specific device to move in the direction close to the mounting part, the oil rod is abutted with the abutting rod, the clamping block is driven by the abutting rod to move in the direction close to the mounting part, the steering limit on the nut is relieved, the nut can be detached, and therefore the handle can be detached from the door plate; and through the setting of intercommunication groove, make lubricating oil in the oil pocket can pass through the intercommunication groove enters into in the spout, lubricate fixture block and the nut prevents that the nut from with the threaded connection department of screw rod takes place the corrosion.

5. When the handle rotates, the handle drives the rotating shaft to rotate through the rotating disc, the rotating shaft drives the pushing plate to rotate, and when the pushing plate rotates, disinfectant in the cylinder is sprayed out through the spray nozzle to disinfect the handle, so that cross infection is prevented when a plurality of operators touch the handle.

Drawings

FIG. 1 is a schematic perspective view of a reverse tamper evident screw handle according to the present invention;

FIG. 2 is a front view of a reverse tamper evident screw handle of the present invention;

FIG. 3 is a cross-sectional view of an isometric view of a reverse tamper evident screw handle of the present invention shown at A-A in FIG. 2;

FIG. 4 is an enlarged view of a portion of the reverse tamper evident screw handle of the present invention at B in FIG. 3;

FIG. 5 is an enlarged view of a portion of the reverse tamper evident screw handle of the present invention at C in FIG. 3;

FIG. 6 is a schematic diagram showing the fitting structure of the clamping block and the clamping groove in the reverse anti-disassembly screw handle;

FIG. 7 is a top view of a reverse tamper evident screw handle according to the present invention;

FIG. 8 is a cross-sectional view of an isometric view of a reverse tamper evident screw handle of the present invention taken at D-D in FIG. 7;

fig. 9 is a schematic view of the structure of a sterilizing member in a reverse tamper-proof screw handle according to the present invention.

The reference numerals are as follows:

1. a mounting part; 11. a mounting member; 111. a mounting ring; 112. a chute; 113. a spring; 12. a rotating member; 121. a fixed plate; 122. a rotating disc; 123. t-shaped sliding grooves; 124. a T-shaped slider; 13. a sterilizing member; 131. a cylinder; 132. a rotating shaft; 133. a baffle; 134. a push plate; 135. a nozzle; 136. a liquid inlet pipe; 137. a circular ring; 138. a liquid inlet channel; 2. a handle; 3. a screw; 31. an oil chamber; 32. an oil passage; 33. an oil rod; 34. a return spring; 35. an oil groove; 36. a one-way valve; 37. a communication groove; 38. a butt joint rod; 4. a door panel; 5. a clamping block; 6. a screw cap; 61. a clamping groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

The invention is further illustrated by the following examples in connection with figures 1-9:

in this embodiment, as shown in fig. 1, 3, 4 and 5, a reverse anti-disassembly screw handle comprises a mounting portion 1, one side of the mounting portion 1 is provided with a handle 2, the other side of the mounting portion 1 is provided with at least two screws 3, the screws 3 penetrate through a door plate 4, one end of each screw 3, which is close to the mounting portion 1, is slidably provided with a clamping block 5, the clamping block 5 penetrates through the door plate 4, a nut 6 is connected to the screws 3 in a threaded manner, a clamping groove 61 with an opening facing the mounting portion 1 is formed in the nut 6, and the clamping block 5 is matched with the clamping groove 61 to limit the nut 6 to be in a unidirectional rotation state.

Specifically, through the nut 6 with the setting of installation department 1, the nut 6 rotate gradually on screw rod 3 to installation department 1 is close to, will door plant 4 carries out the centre gripping, thereby makes handle 2 can fix on the door plant, simultaneously through fixture block 5 with the cooperation of draw-in groove 61 makes nut 6 with only carry out unidirectional rotation after the fixture block 5 contact, thereby makes nut 6 with installation department 1 is with the door plant centre gripping after, can not dismantle easily, realizes preventing the purpose of dismantling the door handle.

Further, as shown in fig. 6, the cross section of the clamping block 5 is trapezoidal, and the inclined plane a of the clamping block 5 can be abutted against the opening of the clamping groove 61, so that the clamping block 5 moves in a direction away from the clamping groove 61.

Through the setting of fixture block 5, when making nut 6 is to being close to the direction of door plant removes, draw-in groove 61 with the inclined plane a butt of fixture block 5 makes fixture block 5 is to keeping away from the direction of draw-in groove 61 removes, makes nut 6 can rotate, when nut 6 is to keeping away from the direction of door plant removes, draw-in groove 61 with the upright face b butt of fixture block 5, fixture block 5 does not take place to remove, makes nut 6 can not take place to rotate, thereby realizes preventing the purpose of dismantling the door handle.

Further, as shown in fig. 4, the clamping block 5 is disposed on the mounting member 11 in the mounting portion 1, the mounting member 11 includes a mounting ring 111 fixedly sleeved on the screw 3, the mounting ring 111 is located on one side of the door panel 4 close to the handle 2, a sliding groove 112 with an opening facing the nut 6 is formed in the mounting ring 111, the clamping block 5 is slidably connected in the sliding groove 112, and a spring 113 is connected between the clamping block 5 and a side wall of the sliding groove 112 close to the handle 2.

Specifically, when the clamping groove 61 abuts against the inclined surface a of the clamping block 5, the clamping block 5 compresses the spring 113, so that the clamping block 5 is compressed into the sliding groove 112, and the nut 6 is conveniently rotated.

Further, as shown in fig. 8, the mounting portion 1 further includes a rotating member 12 connected to the handle 2, the rotating member 12 includes a fixed disc 121 fixedly connected to the mounting ring 111, a rotating disc 122 is rotatably connected to the fixed disc 121, and the handle 2 is fixedly connected to the rotating disc 122.

Specifically, when the user uses the handle to open the door, because the position of the user is not fixed, the force application direction is different when opening the door each time, and the door body of some mechanical equipment is heavier, and is more laborious when opening, through the setting of the rotating piece 12, the user can select the best mode of holding according to different positions when opening the door through the handle 2, thereby making the force application direction optimal, and achieving the purpose of saving effort.

Further, as shown in fig. 8, the rotating member 12 further includes a T-shaped chute 123 formed in the fixed disc 121, an opening of the T-shaped chute 123 faces the rotating disc 122, two symmetrically arranged T-shaped sliders 124 are fixedly connected to the rotating disc 122, and the T-shaped sliders 124 are slidably connected to the T-shaped chute 123.

Specifically, the T-shaped chute 123 and the T-shaped slider 124 are configured to rotatably connect the rotating disc 122 and the fixed disc 121.

Further, as shown in fig. 4 and 5, an oil cavity 31 with two open ends is formed in the screw 3, an oil duct 32 is communicated between the oil cavity 31 and the T-shaped chute 123, an oil rod 33 is slidably connected in the oil cavity 31, a return spring 34 is connected between the oil rod 33 and a side wall of the oil cavity 31, which is close to the fixed disc 121, an oil groove 35 with two open ends is formed in the oil rod 33, an axis of the oil groove 35 is coaxial with an axis of the screw 3, a check valve 36 is arranged in the oil groove 35, and a flow direction of the check valve 36 is from one end, which is far away from the installation part 1, of the oil groove 35 to one end, which is close to the installation part 1.

Specifically, because the working environment of the mechanical device is complex, the rotating member 12 is easy to be corroded during long-term use, so that the handle 2 cannot normally rotate, after one end of use, the oil lever 33 is pushed, so that the oil lever 33 moves towards the direction close to the mounting portion 1, lubricating oil enters the T-shaped sliding groove 123, and the T-shaped sliding block 124 and the T-shaped sliding groove 123 are lubricated, so that the handle 2 can normally rotate; by the arrangement of the one-way valve 36, after the use of the lubricating oil in the oil cavity 31 is finished, the lubricating oil in the oil cavity 31 is supplemented by the one-way valve 36, so that the device can be recycled.

Further, as shown in fig. 4 and 5, a communication groove 37 is provided between the sliding groove 112 and the oil chamber 31, a supporting rod 38 is slidably connected in the communication groove 37, one end of the supporting rod 38 is fixedly connected with the clamping block 5, and the other end of the supporting rod 38 can be abutted to the oil rod 33.

Specifically, when the operator needs to detach the handle, the specific device pushes the oil rod 33, so that the oil rod 33 moves towards the direction approaching the installation part 1, the oil rod 33 is abutted against the abutment rod 38, the abutment rod 38 drives the clamping block 5 to move towards the direction approaching the installation part 1, the steering restriction on the nut is released, and the nut 6 can be detached, so that the handle 2 can be detached from the door panel 4; and through the setting of the communication groove 37, the lubricating oil in the oil cavity 31 can enter the chute 112 through the communication groove 37 to lubricate the clamping block 5 and the nut 6, so that the screw joint of the nut 6 and the screw 3 is prevented from being corroded.

Further, as shown in fig. 8 and 9, the mounting portion 1 further includes a sterilizing member 13, the sterilizing member 13 includes a cylinder 131 fixedly connected to the fixed disc 121, the cylinder 131 is coaxial with the fixed disc 121, a rotating shaft 132 is fixedly connected to a central position of the rotating disc 122, the rotating shaft 132 extends to penetrate into the cylinder 131, a baffle 133 is fixedly connected between one end of the cylinder 131, which is close to the door panel 4, and the fixed disc 121, one end of the baffle 133 abuts against an inner wall of the cylinder, the other end abuts against the rotating shaft 132, a push plate 134 is fixedly connected to the rotating shaft 132, a nozzle 135 is communicated with a side wall of the cylinder 131, which is close to the fixed disc 121, the nozzle 135 extends to penetrate through the fixed disc 121, and the nozzle 135 faces the handle 2.

Specifically, when the handle 2 rotates, the handle 2 drives the rotating shaft 132 to rotate through the rotating disc 122, the rotating shaft 132 drives the pushing plate 134 to rotate, and when the pushing plate 134 rotates, the disinfectant in the cylinder 131 is sprayed out through the nozzle 135 to disinfect the handle 2, so that cross infection is prevented when a plurality of operators touch the handle 2.

Further, as shown in fig. 9, the sterilizing unit 13 further includes a liquid inlet pipe 136 that is communicated with the cylinder 131, and a circular ring 137 is disposed between the fixing plate 121 and the door plate 4, so that a closed space is formed between the circular ring 137, the door plate 4 and the fixing plate 121, the liquid inlet pipe 136 extends into the closed space, and a liquid pump is disposed in the liquid inlet pipe 136.

Specifically, after the disinfectant in the cylinder 131 is used, the disinfectant in the closed space is replenished into the cylinder 131 by the liquid pump.

Further, as shown in fig. 9, the sterilizing unit 13 further includes a liquid inlet channel 138 disposed at the top end of the circular ring 137.

Specifically, after the use of the disinfectant in the closed space is finished, the disinfectant is added into the closed space through the liquid inlet pipe.

Working principle: when the handle 2 is installed, the nut 6 is rotated, so that the nut 6 approaches the installation part 1, when the clamping groove 61 is abutted against the inclined surface a of the clamping block 5, the clamping block 5 moves away from the clamping groove 61, so that the nut 6 can rotate, when the nut 6 moves away from the door panel, the clamping groove 61 is abutted against the upright surface b of the clamping block 5, the clamping block 5 does not move, so that the nut 6 cannot rotate, the aim of preventing the door handle from being dismounted is fulfilled, when a user uses the handle to open the door, the force application direction is different when the user uses the handle to open the door, and the door body of some mechanical equipment is heavier, the user is more laborious when opening, by the arrangement of the rotating piece 12, the user can select the optimal holding mode according to different positions when the handle 2 is opened, so that the force application direction is optimal, and simultaneously, the handle is rotated, the handle is driven by the rotating shaft 2, the nozzle is driven by the handle 2 to rotate, the handle is prevented from being infected by the rotating shaft 132, and the sterilizing liquid is blown out of the rotating shaft 132 when the handle 2 is driven by the rotating shaft 132, the sterilizing drum 134 is prevented; because the working environment of the mechanical equipment is complex, the rotating member 12 is easy to rust in the long-term use process, so that the handle 2 cannot rotate normally, and after the mechanical equipment is used for a period of time, the oil rod 33 is pushed, so that the oil rod 33 moves towards the direction close to the mounting part 1, lubricating oil enters the T-shaped sliding groove 123, the T-shaped sliding block 124 and the T-shaped sliding groove 123 are lubricated, and the handle 2 can rotate normally; after the use of the lubricating oil in the oil cavity 31 is finished through the arrangement of the one-way valve 36, the lubricating oil is supplemented into the oil cavity 31 through the one-way valve 36, so that the device can be recycled; when an operator needs to detach the handle, the specific device pushes the oil rod 33 to enable the oil rod 33 to move towards the direction close to the mounting part 1, the oil rod 33 is in abutting connection with the abutting rod 38, the abutting rod 38 drives the clamping block 5 to move towards the direction close to the mounting part 1, the steering restriction on the nut is released, the nut 6 can be detached, and therefore the handle 2 can be detached from the door plate 4; and through the setting of the communication groove 37, the lubricating oil in the oil cavity 31 can enter the chute 112 through the communication groove 37 to lubricate the clamping block 5 and the nut 6, so that the screw joint of the nut 6 and the screw 3 is prevented from being corroded.

The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various extensions and modifications can be made without departing from the spirit of the present invention.

Claims

1. The utility model provides a reverse anti-disassembly screw rod handle which characterized in that: the novel door lock comprises an installation part (1), a handle (2) is arranged on one side of the installation part (1), at least two screws (3) are arranged on the other side of the installation part (1), the screws (3) penetrate through a door plate (4), a clamping block (5) is slidably arranged at one end, close to the installation part (1), of each screw (3), each clamping block (5) penetrates through the door plate (4), a nut (6) is connected onto each screw (3) in a threaded manner, a clamping groove (61) with an opening facing the installation part (1) is formed in each nut (6), and each clamping block (5) is matched with each clamping groove (61) to limit the corresponding nut (6) to be in a unidirectional rotation state; the cross section of the clamping block (5) is trapezoid, and the inclined plane a of the clamping block (5) can be abutted with the opening of the clamping groove (61) so that the clamping block (5) moves in the direction away from the clamping groove (61); clamping block (5) set up in installed part (11) in installation department (1), installed part (11) are including fixed cover establish collar (111) on screw rod (3), collar (111) are located door plant (4) are close to one side of handle (2), set up in collar (111) opening orientation spout (112) of nut (6), clamping block (5) sliding connection is in spout (112), clamping block (5) with spout (112) are close to be connected with spring (113) between a lateral wall of handle (2), installation department (1) still include with rotating member (12) that handle (2) are connected, rotating member (12) include with fixed disk (121) of collar (111) fixed connection, rotate on fixed disk (121) and be connected with rolling disk (122), handle (2) with rolling disk (122) fixed connection.

2. A reverse tamper evident screw handle as defined in claim 1, wherein: the rotating piece (12) further comprises a T-shaped sliding groove (123) formed in the fixed disc (121), an opening of the T-shaped sliding groove (123) faces the rotating disc (122), two symmetrically-arranged T-shaped sliding blocks (124) are fixedly connected to the rotating disc (122), and the T-shaped sliding blocks (124) are slidably connected to the T-shaped sliding groove (123).

3. A reverse tamper evident screw handle as defined in claim 2, wherein: offer both ends open-ended oil pocket (31) in screw rod (3), oil pocket (31) with communicate between T shape spout (123) and be provided with oil duct (32), sliding connection has oil stem (33) in oil pocket (31), oil stem (33) with oil pocket (31) are close to be connected with reset spring (34) between the lateral wall of fixed disk (121), offer both ends open-ended oil groove (35) in oil stem (33), the axis of oil groove (35) with the axis of screw rod (3) is coaxial, be provided with check valve (36) in oil groove (35), the flow direction of check valve (36) is by oil groove (35) is kept away from the one end flow direction of installation department (1) is close to the one end of installation department (1).

4. A reverse tamper evident screw handle as claimed in claim 3, wherein: the oil cavity is characterized in that a communication groove (37) is formed in the position, communicated with the oil cavity (31), of the sliding groove (112), a supporting rod (38) is connected in the communication groove (37) in a sliding mode, one end of the supporting rod (38) is fixedly connected with the clamping block (5), and the other end of the supporting rod (38) can be in supporting connection with the oil rod (33).

5. A reverse tamper evident screw handle as defined in claim 1, wherein: the mounting part (1) further comprises a sterilizing part (13), the sterilizing part (13) comprises a cylinder (131) fixedly connected to the fixed disc (121), the cylinder (131) is coaxial with the fixed disc (121), a rotating shaft (132) is fixedly connected to the central position of the rotating disc (122), the rotating shaft (132) extends to penetrate into the cylinder (131), a baffle (133) is fixedly connected between one end, close to the door plate (4), of the cylinder (131) and the fixed disc (121), one end of the baffle (133) is abutted to the inner wall of the cylinder, the other end of the baffle is abutted to the rotating shaft (132), a pushing plate (134) is fixedly connected to the rotating shaft (132), the cylinder (131) is close to one side wall of the fixed disc (121) and is communicated with a nozzle (135), the nozzle (135) extends to penetrate through the fixed disc (121), and the nozzle (135) faces the handle (2).

6. A reverse tamper evident screw handle as defined in claim 5 wherein: the disinfection piece (13) further comprises a liquid inlet pipe (136) communicated with the cylinder (131), a circular ring (137) is arranged between the fixed disc (121) and the door plate (4), so that a closed space is formed between the circular ring (137) and the door plate (4) and between the fixed disc (121), the liquid inlet pipe (136) extends into the closed space, and a liquid suction pump is arranged in the liquid inlet pipe (136).

7. A reverse tamper evident screw handle as defined in claim 6 wherein: the disinfection piece (13) further comprises a liquid inlet channel (138) which is communicated with the top end of the circular ring (137).