Safety device for preventing air pipe joint from collapsing

Abstract

The utility model relates to the technical field of air pipe fixing, in particular to a safety device for preventing an air pipe connector from collapsing and falling, which comprises a binding belt, a buckle and a locking block, saw teeth are arranged on the binding belt, the buckle is fixedly connected to one end of the binding belt, a channel for the binding belt to penetrate through is arranged on the buckle, and the locking block is fixedly connected to the other end of the binding belt. A locking groove communicated with the channel is formed in one side of the channel, the locking block is connected to the locking groove in a sliding mode, an elastic piece is arranged between the locking block and the bottom wall of the locking groove, and locking teeth matched with the sawteeth are arranged on the side, away from the elastic piece, of the locking block. The air compressor air pipe joint has the effect of preventing the air compressor air pipe joint from collapsing.

Description

Technical Field

[0001] The present application relates to the technical field of air duct fixing, and in particular to a safety device for preventing an air duct joint from collapsing. Background Art

[0002] Air compressors are widely used in the industrial field. The air duct joints of air compressors may collapse due to various reasons during use, resulting in equipment failure, production stagnation, and even safety accidents. Although there are some devices in the prior art to prevent the collapse of air duct joints, they are often large and complex in structure and inconvenient to use. Utility Model Content

[0003] In order to prevent the collapse of the air duct joint of the air compressor, the present application provides a safety device to prevent the collapse of the air duct joint.

[0004] The present application provides a safety device for preventing the collapse of air duct joints using the following technical solutions:

[0005] A safety device for preventing a duct joint from collapsing comprises a cable tie, a buckle and a locking block, wherein the cable tie is provided with saw teeth, the buckle is fixedly connected to one end of the cable tie, the buckle is provided with a channel for the cable tie to pass through, one side of the channel is provided with a locking groove connected to the channel, the locking block is slidably connected to the locking groove, an elastic member is provided between the locking block and the bottom wall of the locking groove, and a locking tooth matching the saw teeth is provided on the side of the locking block away from the elastic member.

[0006] By adopting the above technical solution, the cable tie can pass through the buckle through the channel, so that the serrations on the cable tie cooperate with the locking teeth on the locking block, and the elastic member can provide a force toward the cable tie to the locking block to ensure that the serrations and the locking teeth can cooperate firmly. The cable tie is wrapped around the interface of the two air ducts, and the cable tie passes through the buckle through the channel. After the serrations and the locking teeth cooperate, the cable tie and the locking block can only move in one direction, which plays a role in locking and preventing the air duct joint from collapsing.

[0007] Optionally, a guide bin is provided on a side of the channel away from the locking groove, an unlocking hole is provided on a side of the guide bin away from the channel, the unlocking hole passes through the buckle, a guide block is slidably connected in the guide bin, and the guide block is fixedly connected to the locking block via a first connecting member.

[0008] By adopting the above technical solution, a tool is inserted into the unlocking hole and the guide block is pushed, so that a force away from the cable tie can be provided to the locking block through the guide block, so that the locking block overcomes the force towards the cable tie provided by the elastic member and moves along the locking groove away from the cable tie, thereby invalidating the cooperation between the serrations and the locking teeth, and the cable tie can leave the buckle in the opposite direction to unlock the duct joint.

[0009] Optionally, the width of the guide bin and the locking groove are both greater than the width of the channel, the number of the first connecting members is multiple, the first connecting members are arranged on both sides of the channel, one end of the first connecting member is fixedly connected to the locking block, and the other end of the first connecting member is fixedly connected to the guide block.

[0010] By adopting the above technical solution, the first connecting members arranged on both sides of the channel can transmit force without affecting the normal use of the cable tie.

[0011] Optionally, a second connecting member is slidably connected in the unlocking hole, the length of the second connecting member is greater than the length of the unlocking hole, one end of the second connecting member is fixedly connected to the guide block, and the other end of the second connecting member is provided with a pressing plate.

[0012] By adopting the above technical solution, the operator can directly press the pressing plate to invalidate the cooperation between the serrations and the locking teeth, thereby allowing the cable tie to leave the buckle in the opposite direction and unlock the duct joint.

[0013] Optionally, a locking device is provided between the pressing plate and the buckle, and the locking device is used to prevent the pressing plate from approaching the buckle.

[0014] By adopting the above technical solution, the locking device can be used to avoid accidentally touching the pressing plate, which causes the failure of the cooperation between the serrations and the locking teeth, thereby allowing the cable tie to leave the buckle in the opposite direction and unlock the duct joint.

[0015] Optionally, the locking device includes a locking assembly and a control assembly, the locking assembly including a locking column, a locking shaft and a locking groove, the locking groove is parallel to the unlocking hole and is arranged on a side of the buckle close to the pressing plate, the locking column is slidably connected to the locking groove, a threaded hole is provided at the central axis of the locking column, and an external thread matching the threaded hole is provided on the locking shaft. The locking shaft can rotate around its own axis and is arranged in the locking groove and is threadedly connected to the locking column at the same time, and the control assembly is transmission-connected to the locking column to control the locking column to rotate around its own axis.

[0016] By adopting the above technical scheme, since the locking column is threadedly connected to the locking shaft, and the locking column is slidably connected to the locking groove and cannot rotate around its own axis, when the locking shaft rotates, the locking column can move closer to or away from the pressing plate along the locking groove under the action of the threaded connection. When the locking column gradually approaches the pressing plate and abuts against it, it can provide a force to the pressing plate away from the channel. This force can pass through the channel through the second connecting member, the guide block and the first connecting member, and be transmitted to the locking block, and converted into a force to provide the locking block with a force toward the channel. When the cable tie is located in the channel, the force toward the channel, that is, the force toward the cable tie, can assist the elastic member to ensure that the serrations and the locking teeth can be firmly matched; by making the thread lead angle smaller than the thread friction angle, the self-locking property of the thread can be used to ensure that the locking column will not loosen due to internal or external vibration, impact or alternating load, so that the locking column can and can only move under the influence of the locking shaft, thereby avoiding the pressing plate from approaching the buckle due to accidental touch.

[0017] Optionally, the control component includes a control groove, a control shaft, a first bevel gear and a second bevel gear, the control groove is arranged perpendicular to the locking groove, one end of the control groove is located on the buckle surface, and the other end of the control groove is connected to an end of the locking groove away from the buckle surface, and the control shaft is arranged in the control groove so as to be able to rotate around its own axis, the first bevel gear is fixedly connected to the locking shaft, and the second bevel gear is fixedly connected to an end of the control shaft close to the locking shaft, and the first bevel gear and the second bevel gear are meshed with each other.

[0018] By adopting the above technical solution, the action on the control shaft can be transmitted to the locking shaft by utilizing the cooperation between the first bevel gear and the second bevel gear. When the control shaft rotates, the locking shaft rotates around its own axis under the meshing action of the first bevel gear and the second bevel gear. The rotation of the locking shaft can be controlled by controlling the rotation of the control shaft, so that the locking column moves closer to or away from the pressing plate along the locking groove.

[0019] Optionally, a slot is provided at one end of the control shaft away from the second bevel gear.

[0020] By adopting the above technical solution, the slot can facilitate the operator to turn the control shaft through the tool.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. It can prevent the air compressor air duct joint from collapsing;

[0023] 2. It is convenient for the operator to directly press the pressing plate to invalidate the cooperation between the saw teeth and the locking teeth, and then remove the cable tie from the buckle for repeated use;

[0024] 3. It can avoid accidentally touching the pressing plate, which causes the cooperation between the serrations and the locking teeth to fail, thereby allowing the cable tie to leave the buckle in the opposite direction and unlock the duct joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a safety device for preventing an air duct joint from collapsing provided in an embodiment of the present application;

[0026] Figure 2 It is a schematic diagram of the internal structure of the buckle provided in an embodiment of the present application.

[0027] Explanation of the reference numerals: 1-cable tie; 2-sawtooth; 3-buckle; 4-channel; 5-locking groove; 6-locking block; 7-locking tooth; 8-elastic member; 9-guide bin; 10-unlocking hole; 11-guide block; 12-first connecting member; 13-second connecting member; 14-pressing plate; 15-locking column; 16-locking shaft; 17-locking groove; 18-control shaft; 19-control groove; 20-first bevel gear; 21-second bevel gear; 22-slot. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-2 This application is described in further detail.

[0029] The embodiment of the present application discloses a safety device for preventing an air duct joint from collapsing.

[0030] like Figure 1 and Figure 2 As shown, a safety device for preventing the collapse of a duct joint includes a cable tie 1, a buckle 3 and a locking block 6. The cable tie 1 is provided with a sawtooth 2. The buckle 3 is fixedly connected to one end of the cable tie 1. The buckle 3 is provided with a channel 4 for the cable tie 1 to pass through. One side of the channel 4 is provided with a locking groove 5 connected to the channel 4. The locking block 6 is slidably connected to the locking groove 5. An elastic member 8 is provided between the locking block 6 and the bottom wall of the locking groove 5. The locking block 6 is provided with a locking tooth 7 matched with the sawtooth 2 on one side away from the elastic member 8. The elastic member 8 can be a spring or a spring sheet. In this embodiment, the elastic member 8 is a spring.

[0031] The cable tie 1 can pass through the channel 4 and the buckle 3, so that the serrations 2 on the cable tie 1 cooperate with the locking teeth 7 on the locking block 6, and the elastic member 8 can provide a force toward the cable tie 1 to the locking block 6 to ensure that the serrations 2 and the locking teeth 7 can cooperate firmly. The cable tie 1 is wrapped around the interface of the two air ducts, and the cable tie 1 passes through the buckle 3 through the channel 4. After the serrations 2 and the locking teeth 7 cooperate, the cable tie 1 and the locking block 6 can only move in one direction, which plays a role in locking and preventing the air duct joint from collapsing.

[0032] like Figure 1 and Figure 2As shown, a guide bin 9 is provided on the side of the channel 4 away from the locking groove 5, and an unlocking hole 10 is provided on the side of the guide bin 9 away from the channel 4. The unlocking hole 10 passes through the buckle 3, and a guide block 11 is slidably connected in the guide bin 9. The guide block 11 is fixedly connected to the locking block 6 through a first connecting member 12.

[0033] During actual use, the operator can use a tool to reach into the unlocking hole 10, push the guide block 11 through the tool, and provide a force to the locking block 6 away from the cable tie 1 through the guide block 11, so that it overcomes the force provided by the elastic member 8 toward the cable tie 1 and moves along the locking groove 5 in the direction away from the cable tie 1, thereby invalidating the cooperation between the serrations 2 and the locking teeth 7, and allowing the cable tie 1 to leave the buckle 3 in the opposite direction to unlock the duct joint.

[0034] like Figure 1 and Figure 2 As shown, in order to prevent the first connecting member 12 from affecting the passage of the cable tie 1 in the channel 4 and the cooperation with the locking block 6, the width of the channel 4 can be set to be equal to the width of the cable tie 1, the width of the guide bin 9 and the locking groove 5 are both greater than the width of the channel 4, the number of the first connecting members 12 is multiple, the first connecting members 12 are arranged on both sides of the channel 4, the distance between the two oppositely arranged first connecting members 12 can be equal to the width of the channel 4, one end of the first connecting member 12 is fixedly connected to the locking block 6, and the other end of the first connecting member 12 is fixedly connected to the guide block 11. The first connecting members 12 arranged on both sides of the channel 4 can transmit force without affecting the normal use of the cable tie 1. The first connecting member 12 can be constructed in a plate shape or a columnar shape. In this embodiment, the number of the first connecting members 12 is six, and the first connecting member 12 is constructed in a columnar shape.

[0035] like Figure 1 and Figure 2 As shown, it is convenient for the operator to remove the cable tie 1 from the buckle 3. A second connecting member 13 is slidably connected in the unlocking hole 10. The length of the second connecting member 13 is greater than the length of the unlocking hole 10. One end of the second connecting member 13 is fixedly connected to the guide block 11, and the other end of the second connecting member 13 is provided with a pressing plate 14. In this embodiment, the unlocking hole 10 and the second connecting member 13 are both elliptical.

[0036] In actual use, the operator can directly press the pressing plate 14, and transmit the force applied to the pressing plate 14 to the guide block 11 through the second connecting member 13. The guide block 11 provides a force away from the cable tie 1 to the locking block 6, so that it overcomes the force towards the cable tie 1 provided by the elastic member 8, and moves along the locking groove 5 in the direction away from the cable tie 1, thereby invalidating the cooperation between the serrations 2 and the locking teeth 7, and allowing the cable tie 1 to leave the buckle 3 in the opposite direction to unlock the duct joint.

[0037] like Figure 1 and Figure 2 As shown, in order to prevent the operator or an unrelated person from accidentally touching the pressing plate 14 during actual use, resulting in failure of the cooperation between the saw teeth 2 and the locking teeth 7, a locking device is provided between the pressing plate 14 and the buckle 3, and the locking device is used to prevent the pressing plate 14 from approaching the buckle 3. The locking device includes a locking component and a control component.

[0038] like Figure 1 and Figure 2 As shown, the locking assembly includes a locking column 15, a locking shaft 16 and a locking groove 17. The locking groove 17 is parallel to the unlocking hole 10 and is arranged on the side of the buckle 3 close to the pressing plate 14. The locking column 15 is slidably connected to the locking groove 17. A threaded hole is arranged at the central axis of the locking column 15. The locking shaft 16 is provided with an external thread matching the threaded hole. The locking shaft 16 can rotate around its own axis and is arranged in the locking groove 17 and is threadedly connected to the locking column 15. The control assembly includes a control groove 19, a control shaft 18, a first bevel gear 20 and a second bevel gear 21. The control groove 19 is arranged perpendicular to the locking groove 17. One end of the control groove 19 is located on the surface of the buckle 3, and the other end of the control groove 19 is connected to the end of the locking groove 17 away from the surface of the buckle 3. The control shaft 18 can rotate around its own axis and is arranged in the control groove 19. The first bevel gear 20 is fixedly connected to the locking shaft 16, and the second bevel gear 21 is fixedly connected to the end of the control shaft 18 close to the locking shaft 16. The first bevel gear 20 and the second bevel gear 21 are meshed with each other.

[0039] Since the locking column 15 is threadedly connected to the locking shaft 16, and the locking column 15 is slidably connected to the locking groove 17 and cannot rotate around its own axis, when the locking shaft 16 rotates, the locking column 15 can approach or move away from the pressing plate 14 along the locking groove 17 under the action of the threaded connection. The action on the control shaft 18 can be transmitted to the locking shaft 16 by the cooperation between the first bevel gear 20 and the second bevel gear 21. When the control shaft 18 rotates, the locking shaft 16 rotates around its own axis under the meshing action of the first bevel gear 20 and the second bevel gear 21. The rotation of the locking shaft 16 can be controlled by controlling the rotation of the control shaft 18, so that the locking column 15 can approach or move away from the pressing plate 14 along the locking groove 17. When the locking column 15 gradually approaches the pressing plate 14 along the locking groove 17 and abuts against it, the locking column 15 can provide a force to the pressing plate 14 away from the channel 4, and the force can pass through the second connecting member 13, the guide block 11 and the first connecting member 12 to pass through the channel 4 and be transmitted to the locking block 6, and then be converted into a force to provide the locking block 6 with a force toward the channel 4. When the cable tie 1 is located in the channel 4, the force toward the channel 4 is also the force toward the cable tie 1, which can assist the elastic member 8 to ensure that the serrations 2 and the locking teeth 7 can be firmly matched. By making the thread lead angle smaller than the thread friction angle, the self-locking property of the thread can be used to ensure that the locking column 15 will not loosen due to internal or external vibration, impact or alternating load, so that the locking column 15 can and can only move under the influence of the locking shaft 16, so as to avoid the pressing plate 14 approaching the buckle 3 due to accidental touch.

[0040] The end of the locking shaft 16 away from the second bevel gear 21 is also provided with a slot 22 to facilitate the operator to use a tool to turn the locking shaft 16. The slot 22 can be configured as a slot or a cross slot, and accordingly, the external tool can be a slotted screwdriver or a cross screwdriver, which is not specifically limited in the present disclosure.

[0041] The implementation principle of a safety device for preventing the collapse of an air duct joint in an embodiment of the present application is as follows:

[0042] When the air duct needs to be fixed, the cable tie 1 is wrapped around the interface of the two air ducts, and the cable tie 1 is passed through the buckle 3 through the channel 4, so that the serrations 2 on the cable tie 1 cooperate with the locking teeth 7 on the locking block 6. At this time, the elastic member 8 provides a force toward the cable tie 1 to the locking block 6 to ensure that the serrations 2 and the locking teeth 7 can be firmly matched. The cable tie 1 and the locking block 6 can only move in one direction, which plays a role in locking and preventing the air duct joint from collapsing.

[0043] Then use a tool to twist the control shaft 18. When the control shaft 18 rotates, under the meshing action of the first bevel gear 20 and the second bevel gear 21, the locking shaft 16 rotates together around its own axis, and the locking column 15 approaches the pressing plate 14 along the locking groove 17 under the action of the threaded connection. When the locking column 15 gradually approaches the pressing plate 14 and abuts against it, a force away from the channel 4 is provided to the pressing plate 14. This force can pass through the channel 4 through the second connecting member 13, the guide block 11 and the first connecting member 12, and is transmitted to the locking block 6, and is converted into a force toward the channel 4 provided to the locking block 6. The force toward the channel 4 is also the force toward the cable tie 1, which can assist the elastic member 8 to ensure that the serrations 2 and the locking teeth 7 can be firmly matched, thereby preventing the pressing plate 14 from approaching the buckle 3 due to accidental touch.

[0044] When the air duct needs to be removed, the control shaft 18 is screwed with a tool. When the control shaft 18 rotates, the locking shaft 16 rotates together around its own axis under the meshing action of the first bevel gear 20 and the second bevel gear 21. The locking column 15 moves away from the pressing plate 14 along the locking groove 17 under the action of the threaded connection, so that the operator can press the pressing plate 14 and use the second connecting member 13 to transmit the force applied to the pressing plate 14 to the guide block 11. The guide block 11 provides a force away from the cable tie 1 to the locking block 6, so that it overcomes the force towards the cable tie 1 provided by the elastic member 8 and moves away from the cable tie 1 along the locking groove 5, thereby making the cooperation between the saw teeth 2 and the locking teeth 7 invalid, so that the cable tie 1 can leave the buckle 3 in the opposite direction and unlock the air duct joint. Then the two air ducts are disassembled from the joint for inspection or replacement.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A safety device for preventing air duct joints from collapsing, characterized in that: include: A cable tie (1), a buckle (3) and a locking block (6), wherein the cable tie (1) is provided with a sawtooth (2), the buckle (3) is fixedly connected to one end of the cable tie (1), the buckle (3) is provided with a channel (4) for the cable tie (1) to pass through, one side of the channel (4) is provided with a locking groove (5) connected to the channel (4), the locking block (6) is slidably connected to the locking groove (5), an elastic member (8) is provided between the locking block (6) and the bottom wall of the locking groove (5), and a locking tooth (7) matching the sawtooth (2) is provided on the side of the locking block (6) away from the elastic member (8).

2. A safety device for preventing air duct joints from collapsing according to claim 1, characterized in that: A guide bin (9) is provided on a side of the channel (4) away from the locking groove (5); an unlocking hole (10) is provided on a side of the guide bin (9) away from the channel (4); the unlocking hole (10) passes through the buckle (3); a guide block (11) is slidably connected in the guide bin (9); and the guide block (11) is fixedly connected to the locking block (6) via a first connecting member (12).

3. A safety device for preventing air duct joints from collapsing according to claim 2, characterized in that: The widths of the guide bin (9) and the locking groove (5) are both greater than the width of the channel (4); the number of the first connecting members (12) is plural; the first connecting members (12) are arranged on both sides of the channel (4); one end of the first connecting member (12) is fixedly connected to the locking block (6); and the other end of the first connecting member (12) is fixedly connected to the guide block (11).

4. A safety device for preventing air duct joints from collapsing according to claim 2, characterized in that: A second connecting member (13) is slidably connected in the unlocking hole (10); the length of the second connecting member (13) is greater than the length of the unlocking hole (10); one end of the second connecting member (13) is fixedly connected to the guide block (11); and the other end of the second connecting member (13) is provided with a pressing plate (14).

5. A safety device for preventing air duct joints from collapsing according to claim 4, characterized in that: A locking device is provided between the pressing plate (14) and the buckle (3), and the locking device is used to prevent the pressing plate (14) from approaching the buckle (3).

6. A safety device for preventing air duct joints from collapsing according to claim 5, characterized in that: The locking device comprises a locking assembly and a control assembly, wherein the locking assembly comprises a locking column (15), a locking shaft (16) and a locking groove (17), wherein the locking groove (17) is parallel to the unlocking hole (10) and is arranged on a side of the buckle (3) close to the pressing plate (14), the locking column (15) is slidably connected to the locking groove (17), a threaded hole is arranged at the central axis of the locking column (15), the locking shaft (16) is provided with an external thread matched with the threaded hole, the locking shaft (16) is rotatable around its own axis and is arranged in the locking groove (17) and is threadedly connected to the locking column (15), and the control assembly is transmission-connected to the locking column (15) to control the locking column (15) to rotate around its own axis.

7. A safety device for preventing air duct joints from collapsing according to claim 6, characterized in that: The control assembly comprises a control groove (19), a control shaft (18), a first bevel gear (20) and a second bevel gear (21); the control groove (19) is arranged perpendicular to the locking groove (17); one end of the control groove (19) is located on the surface of the buckle (3); the other end of the control groove (19) is connected to an end of the locking groove (17) away from the surface of the buckle (3); the control shaft (18) is arranged in the control groove (19) so as to be rotatable around its own axis; the first bevel gear (20) is fixedly connected to the locking shaft (16); the second bevel gear (21) is fixedly connected to an end of the control shaft (18) close to the locking shaft (16); and the first bevel gear (20) and the second bevel gear (21) are meshed with each other.

8. A safety device for preventing air duct joints from collapsing according to claim 7, characterized in that: A clamping groove (22) is provided at one end of the control shaft (18) away from the second bevel gear (21).

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