Anti-loose throat collar

Abstract

The application relates to a loosening-preventing throat clamp and belongs to the technical field of fasteners, which comprises a steel band, a clamp head assembly and a loosening-preventing assembly, the clamp head assembly is installed at one end of the steel band, the loosening-preventing assembly is installed on the steel band and is arranged in a spaced mode with the clamp head assembly, adjusting holes for cooperating with the clamp head assembly to tighten or loosen the steel band are arranged on the steel band, a plurality of adjusting holes are arranged in a spaced mode along the length direction of the steel band, the loosening-preventing assembly comprises an installation block installed on the steel band and a loosening-preventing block slidably installed on the installation block, a locking channel for inserting one end of the steel band away from the clamp head assembly is arranged on the installation block, locking elastic sheets are arranged on the loosening-preventing block and inserted into the adjusting holes to limit the steel band in the locking channel. The application has the effect of improving the stability of the installed throat clamp.

Description

Technical Field

[0001] This application relates to the field of fastener technology, and in particular to a hose clamp that prevents loosening. Background Technology

[0002] Hose clamps are ideal fasteners used in the automotive, marine, and machinery industries. A hose clamp consists of a steel band and a clamp head. The clamp head includes a clamp housing and a screw. The clamp housing is fixed to one end of the steel band, and the other end of the steel band passes through the clamp head to form a loop. The screw is rotated and mounted on the clamp housing. Rotating the screw causes the steel band to shrink in diameter, while rotating the screw in the opposite direction increases the diameter of the steel band.

[0003] In related technologies, to prevent hose clamps from loosening due to equipment vibration, elastic washers are added to the screws. When the screw presses against the elastic washer, the washer increases the friction of the screw through its own elasticity, making the screw less likely to loosen and thus improving the stability of the hose clamp after installation. However, the addition of elastic washers only increases the friction between the screw and the clamp housing. When the equipment vibrates significantly for an extended period, the hose clamp can still loosen. Summary of the Invention

[0004] To improve the stability of the hose clamp after installation, this application provides a hose clamp that prevents loosening.

[0005] The present application provides a hose clamp that prevents loosening, employing the following technical solution: A hose clamp for preventing loosening includes a steel band, a clamp head assembly, and an anti-loosening component. The clamp head assembly is installed at one end of the steel band, and the anti-loosening component is installed on the steel band and spaced apart from the clamp head assembly. The steel band is provided with adjustment holes that cooperate with the clamp head assembly to tighten or loosen the steel band. Multiple adjustment holes are provided and are arranged at intervals along the length of the steel band. The anti-loosening component includes a mounting block installed on the steel strip and an anti-loosening block slidably installed on the mounting block. The mounting block has a locking channel for inserting one end of the steel strip away from the clamp assembly. The anti-loosening block is provided with a locking spring that is inserted into the adjustment hole to limit the steel strip within the locking channel.

[0006] Optionally, the mounting block has a channel inlet and a channel outlet communicating with the locking channel, and the locking spring is inclinedly disposed on the anti-loosening block to limit the steel strip from disengaging from the channel inlet.

[0007] Optionally, the locking channel is an S-shaped channel, and multiple locking springs are spaced apart on the anti-loosening block, with the multiple locking springs limiting the steel strip located at different positions within the locking channel.

[0008] Optionally, the mounting block has a locking groove inside for the anti-loosening block to be inserted and slid, and the anti-loosening block has a through groove that communicates with the locking channel and allows the steel strip to pass through. The locking spring is disposed on the groove wall of the through groove.

[0009] Optionally, the anti-loosening component further includes a drive spring located on the side of the anti-loosening block near the steel strip, with one end of the drive spring abutting against the anti-loosening block and the other end abutting against the groove wall of the locking groove.

[0010] Optionally, two mounting blocks are symmetrically arranged. The two mounting blocks have the same structure and are welded together. The locking groove is opened on the side where the two mounting blocks abut, and the locking groove does not penetrate the mounting block.

[0011] Optionally, the clamp assembly includes a clamp shell mounted on the steel strip and a screw rotatably mounted on the clamp shell and cooperating with the adjustment hole to drive the other end of the steel strip to move. A toothed ring is sleeved on one side of the screw, and the toothed ring rotates synchronously with the screw. The end of the toothed ring near the clamp shell has multiple helical teeth arranged circumferentially. An elastic retaining plate is inclinedly arranged on the clamp shell, which is inserted into the helical teeth to limit the reverse rotation of the screw. The elastic retaining plate extends radially out of the clamp shell along the toothed ring.

[0012] Optionally, the anti-loosening hose clamp also includes a linkage component that is linked to the elastic plate and drives the anti-loosening block to slide so that the locking spring is disengaged from the adjustment hole and does not limit the steel strip. The linkage assembly includes a first link, a second link, and a drive link. One side of the first link is hinged to the elastic plate, and the other side is hinged to the second link. The side of the second link away from the first link extends toward the mounting block and is hinged to the drive link. A drive post is provided on the side wall of the anti-loosening block. An unlocking groove is provided on the mounting block for the drive post to be inserted and directionally slid. The side of the drive link away from the second link is hinged to the drive post.

[0013] Optionally, a directional post is provided on the side of the second connecting rod near the mounting block, and a directional groove is provided on the mounting block for the directional post to be inserted and slid.

[0014] Optionally, an active bevel gear is rotatably mounted on the head shell, and a driven bevel gear that meshes with the active bevel gear is mounted on the screw. The driven bevel gear rotates synchronously with the screw, and the transmission ratio between the active bevel gear and the driven bevel gear is 2.

[0015] In summary, this application includes at least one of the following beneficial technical effects: The end of the steel strip away from the head shell passes through the head shell first. When tightening the hose clamp, the screw is turned clockwise. Since the elastic clamp is inclined on the head shell, it does not interfere with the clockwise rotation of the screw. When the screw is turned counterclockwise, the elastic clamp engages in one of the helical teeth to limit the counterclockwise rotation of the screw. This makes the screw less susceptible to vibration and loosening, which could lead to the hose clamp loosening. This improves the stability of the hose clamp after installation. When tightening the hose clamp, the part of the steel strip that protrudes from the clamp head housing will be inserted into the locking channel through the channel inlet. At the same time, the part of the steel strip in the locking channel will also pass through the through slot. When the steel strip moves from the through slot to the channel outlet, the locking spring is tilted and does not interfere with the movement of the steel strip. However, when the steel strip moves towards the channel inlet, the locking spring is inserted into the adjustment hole to limit the movement of the steel strip, thereby further improving the stability of the hose clamp and making it less prone to loosening. As the length of the steel strip entering the locking channel increases, the steel strip will fold into an S-shape under the action of the locking channel. At the same time, multiple locking springs will limit the steel strip at different positions, further making it less prone to loosening after the hose clamp is tightened. When it is necessary to loosen the hose clamp, press the elastic plate to disengage it from the helical teeth and not limit the reverse rotation of the screw. At the same time, after the elastic plate is pressed, both the first and second connecting rods move. After the second connecting rod moves in a direction, it drives the drive connecting rod to move. The drive rod and the drive column cooperate to drive the anti-loosening block to slide in the locking groove along the extension direction of the unlocking groove, so that the locking spring does not limit the steel strip located in the locking channel. With the above structure, it is only necessary to press the elastic plate to loosen the hose clamp, which is more convenient. Since the transmission ratio between the active bevel gear and the driven bevel gear is 2, when tightening the hose clamp, the active bevel gear rotates one revolution, and the driven bevel gear rotates two revolutions, which in turn causes the screw to rotate two revolutions. Compared with directly rotating the screw, the above structure allows the steel belt to move a longer distance with one revolution of the active bevel gear, making it easier to tighten or loosen the hose clamp. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the hose clamp in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the overall structure of the hoop assembly in the embodiments of this application.

[0018] Figure 3 This is a schematic diagram of the anti-loosening component in an embodiment of this application.

[0019] Figure 4 This is a cross-sectional view of the anti-loosening component in an embodiment of this application.

[0020] Figure 5This is a schematic diagram of the mating structure of the clamp assembly, anti-loosening assembly, and linkage assembly in the embodiments of this application.

[0021] Explanation of reference numerals in the attached drawings: 1. Steel strip; 11. Adjustment hole; 2. Hoop assembly; 21. Hoop housing; 22. Screw; 23. Gear ring; 231. Helical tooth; 24. Active bevel tooth; 25. Driven bevel tooth; 251. Tool slot; 26. Elastic retaining plate; 3. Anti-loosening assembly; 31. Mounting block; 311. Locking channel; 312. Channel inlet; 313. Channel outlet; 314. Locking groove; 315. Orientation groove; 316. Unlocking groove; 32. Anti-loosening block; 321. Through slot; 33. Drive spring; 34. Locking spring; 35. Drive column; 4. Linkage assembly; 41. First link; 42. Second link; 43. Drive link; 44. Orientation column. Implementation

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] This application discloses an anti-loosening hose clamp. (See also...) Figure 1 The anti-loosening hose clamp includes a steel band 1, a clamp head assembly 2, an anti-loosening component 3, and a linkage assembly 4. The clamp head assembly 2 is installed at one end of the steel band 1, and the other end of the steel band 1 passes through the clamp head assembly 2 to form a loop. The clamp head assembly 2 can adjust the inner diameter of the loop-shaped steel band 1. The anti-loosening component 3 is installed on the side of the steel band 1 where the clamp head assembly 2 is located. After one end of the steel band 1 passes through the clamp head assembly 2, it is inserted into the anti-loosening component 3 and is restrained, making it difficult to detach from the anti-loosening component 3. The linkage assembly 4 is partially connected to the clamp head assembly 2 and partially connected to the anti-loosening component 3. It is used to release the restraint of the anti-loosening component 3 on the steel band 1, allowing the steel band 1 to be loosened normally.

[0024] Reference Figure 1 and Figure 2 Let one end of the steel strip 1 and the clamp assembly 2 be the tail and the other end be the head. The part of the steel strip 1 near the head is provided with adjustment holes 11 that cooperate with the clamp assembly 2 to tighten or loosen the steel strip 1. Multiple adjustment holes 11 are provided and are evenly spaced along the length of the steel strip 1 and toward the head.

[0025] Reference Figure 1 and Figure 2The clamp assembly 2 includes a clamp housing 21, a screw 22, a toothed ring 23, a driving bevel tooth 24, and a driven bevel tooth 25. The clamp housing 21 is fixedly installed at the tail of the steel strip 1, and the screw 22 is rotatably installed on the clamp housing 21, with the head of the steel strip 1 passing through the clamp housing 21. The thread on the screw 22 engages with multiple adjusting holes 11, thereby tightening or loosening the annular steel strip 1. When the screw 22 rotates clockwise, the steel strip 1 contracts, and its inner diameter decreases; when the screw 22 rotates counterclockwise, the steel strip 1 loosens, and its inner diameter increases. The toothed ring 23 is fitted onto and welded to the screw 22 to prevent the screw 22 from rotating counterclockwise. The driving bevel tooth 24 is rotatably installed on the clamp housing 21 via a rotating shaft, and the driven bevel tooth 25 is fitted onto and welded to the screw 22, with the driven bevel tooth 25 meshing with the driving bevel tooth 24. The transmission ratio between the active bevel gear 24 and the driven bevel gear 25 is 2, making it more convenient and efficient to rotate the active bevel gear 24 to drive the steel belt 1 to move, tighten or loosen.

[0026] After the screw 22 is rotatably mounted on the clamp housing 21, both ends of the screw 22 protrude from the clamp housing 21. The toothed ring 23 is located on the side of the clamp housing 21 away from the anti-loosening component 3. Multiple helical teeth 231 are provided on the side of the toothed ring 23 near the clamp housing 21, and these helical teeth 231 are evenly spaced along the circumference of the toothed ring 23. An elastic retaining plate 26 is inclinedly provided on the side of the clamp housing 21 near the toothed ring 23. The elastic retaining plate 26 is welded to the clamp housing 21, and it is inserted into a corresponding helical tooth 231 to limit the counterclockwise rotation of the screw 22. The elastic retaining plate 26 extends radially outward from the clamp housing 21 along the toothed ring 23, making it easier to release the restriction of the toothed ring 23 by pressing down on the elastic retaining plate 26.

[0027] Reference Figure 1 and Figure 2 The driven bevel gear 25 is located on the side of the gear ring 23 facing away from the head housing 21. A tool slot 251 for inserting a tool and driving its rotation is provided on the side of the driven bevel gear 25 facing away from the gear ring 23. Similarly, a tool slot 251 for inserting a tool and driving its rotation is provided on the side of the driving bevel gear 24 facing away from the head housing 21. In practical applications, workers can choose to use a tool to drive the driving bevel gear 24 or the driven bevel gear 25 to rotate according to actual needs and available space.

[0028] Reference Figure 1 and Figure 3The anti-loosening component 3 includes a mounting block 31, an anti-loosening block 32, and a drive spring 33. The mounting block 31 is fixedly mounted to the tail end of the steel strip 1, and the mounting block 31 and the clamp housing 21 are spaced apart along the extension direction of the steel strip 1. The head of the steel strip 1 passes through the clamp housing 21 and inserts into the mounting block 31. The anti-loosening block 32 is slidably mounted on the mounting block 31 to limit the steel strip 1 inserted into the mounting block 31. The drive spring 33 drives the anti-loosening block 32 to maintain a tendency to limit the steel strip 1 within the mounting block 31.

[0029] Combination Figure 1 Reference Figure 3 and Figure 4 Two mounting blocks 31 are symmetrically arranged, with identical structures, and are welded together. Each mounting block 31 has an interconnected S-shaped locking channel 311 on its side closest to each other. Both mounting blocks 31 also have interconnected channel inlets 312 and outlets 313 that communicate with the locking channels 311. The channel inlet 312 is located on the side of the mounting block 31 closest to the head shell 21; the channel outlet 313 is located on the side of the mounting block 31 away from the head shell 21. After the steel strip 1 passes through the head shell 21, it enters the locking channel 311 through the channel inlet 312. As the length of the steel strip 1 inside the locking channel 311 increases, it will form an S-shape under the guidance of the locking channel 311. Finally, the head of the steel strip 1 exits through the channel outlet 313, exposed outside the mounting block 31.

[0030] The mounting block 31 has a locking groove 314 on one side of the locking channel 311. The locking groove 314 extends radially along the annular steel strip 1 and does not penetrate the mounting block 31. The anti-loosening block 32 is placed in the locking groove 314 and will slide radially along the annular steel strip 1. Thus, after the two mounting blocks 31 are fastened and welded, the anti-loosening block 32 is not easily exposed outside the mounting block 31 and is not accidentally touched.

[0031] Combination Figure 1 Reference Figure 3 and Figure 4 The anti-loosening block 32 has a through groove 321 that communicates with the locking channel 311 and allows the steel strip 1 to pass through. A locking spring 34 is welded to the side of the through groove 321 near the center of the annular steel strip 1. The locking spring 34 is inclinedly disposed on the groove wall of the through groove 321. When the steel strip 1 moves toward the channel outlet 313, the locking spring is deformed by the compression of the steel strip 1 to make way for the movement of the steel strip 1; when the steel strip 1 moves toward the channel inlet 312, the locking spring 34 is inserted into the corresponding adjustment hole 11 to limit the movement of the steel strip 1, so that the steel strip 1 is not easy to come out of the locking channel 311.

[0032] Since the locking channel 311 is S-shaped, multiple through slots 321 are provided. In this embodiment, three through slots 321 are preferably provided, and locking spring pieces 34 are welded to the walls of each of the three through slots 321. The inclination directions of adjacent locking springs are opposite, depending on the direction of the steel strip 1 within the locking channel 311. The multiple locking spring pieces 34 limit the movement of the steel strip 1 at different positions within the locking channel 311, further improving the stability of the locked steel strip 1.

[0033] Combination Figure 1 Reference Figure 3 and Figure 4 The drive spring 33 is located on the side of the anti-loosening block 32 near the center of the annular steel strip 1. One end of the drive spring 33 abuts against the anti-loosening block 32, and the other end abuts against the groove wall of the locking groove 314. Thus, under the action of the drive spring 33, the locking spring 34 always tends to insert into the adjusting hole 11.

[0034] Combination Figure 1 Reference Figure 2 and Figure 5 To prevent the anti-loosening block 32 from jamming during sliding, two sets of linkage components 4 are symmetrically arranged on the mounting block 31. Two elastic clamping plates 26 are evenly spaced along the circumference of the toothed ring 23, and each of the two sets of linkage components 4 engages with one of the two elastic clamping plates 26. The following explanation uses the engagement of one set of linkage components 4 and elastic clamping plates 26 as an example.

[0035] Reference Figure 3 and Figure 5 The linkage assembly 4 includes a first link 41, a second link 42, and a drive link 43. One side of the first link 41 is hinged to the elastic locking plate 26, and the other side is hinged to the second link 42. The side of the second link 42 away from the first link 41 extends toward the mounting block 31 and is hinged to the drive link 43. The other end of the drive link 43 is hinged to the anti-loosening block 32. After the elastic locking plate 26 is pressed down, both the first link 41 and the second link 42 move. After the second link 42 moves in a directional manner, it will drive the drive link 43 to move. The drive link 43 drives the anti-loosening block 32 to slide in the locking groove 314, so that the locking spring 34 disengages from the adjusting hole 11 and does not limit the steel strip 1 located in the locking channel 311.

[0036] Specifically, the elastic plate 26 is provided with a lug, and the first connecting rod 41 is rotatably mounted on the lug via a hinge shaft. The end of the first connecting rod 41 that is hinged to the second connecting rod 42 extends towards the mounting block 31, and a rotating shaft is fixedly mounted on the side where the first connecting rod 41 and the second connecting rod 42 are connected, with the second connecting rod 42 hinged to the rotating shaft.

[0037] Reference Figure 3 and Figure 5The end of the second connecting rod 42 furthest from the first connecting rod 41 extends towards the mounting block 31 and is located on one side of the mounting block 31. An elongated directional groove 315 is formed on the outer wall of the mounting block 31, extending along the length of the second connecting rod 42. A directional post 44 is welded to the side of the second connecting rod 42 near the mounting block 31, inserting into the directional groove 315 and sliding within it. The second connecting rod 42 then slides in a directional manner under the action of the directional post 44 and the directional groove 315.

[0038] One side of the drive link 43 is hinged to the side of the second link 42 opposite to the first link 41 via a hinge shaft. A drive post 35 is welded to the side wall of the anti-loosening block 32. The mounting block 31 has an unlocking groove 316 for the drive post 35 to be inserted and directionally slid, and the extension direction of the unlocking groove 316 is consistent with the radial direction of the annular steel strip 1. The end of the drive link 43 away from the second link 42 is rotatably mounted on the drive post 35. When the second link 42 directionally slides, the drive link 43 will pull the anti-loosening block 32 to slide under the action of the second link 42, thereby unlocking the steel strip 1.

[0039] The implementation principle of the anti-loosening hose clamp in this application embodiment is as follows: When tightening the hose clamp, the screw 22 is turned clockwise. Since the elastic plate 26 is inclined on the clamp head shell 21, it does not interfere with the clockwise rotation of the screw 22. When the screw 22 is turned counterclockwise, the elastic plate 26 is engaged in one of the helical teeth 231, which limits the counterclockwise rotation of the screw 22, making the screw 22 less likely to be loosened by vibration, thus preventing the hose clamp from loosening.

[0040] When tightening the hose clamp, the portion of the steel band 1 that protrudes from the clamp head shell 21 will be inserted into the locking channel 311 through the channel inlet 312. At the same time, the portion of the steel band 1 located in the locking channel 311 will also pass through the through slot 321. When the steel band 1 moves from the through slot 321 towards the channel outlet 313, the locking spring 34 is tilted and therefore does not interfere with the movement of the steel band 1. However, when the steel band 1 moves towards the channel inlet 312, the locking spring 34 is inserted into the adjustment hole 11 to limit the movement of the steel band 1, thereby further improving the stability of the hose clamp and making it less prone to loosening. As the length of the steel band 1 entering the locking channel 311 increases, the steel band 1 will fold into an S-shape under the action of the locking channel 311. At the same time, multiple locking springs 34 will limit the steel band 1 at different positions, further ensuring that the hose clamp is not prone to loosening after tightening.

[0041] When the hose clamp needs to be loosened, the elastic plate 26 is pressed to disengage from the helical tooth 231 and does not limit the reverse rotation of the screw 22. At the same time, after the elastic plate 26 is pressed, the first link 41 and the second link 42 both move and slide in a direction under the action of the directional post 44 and the directional groove 315. The sliding of the second link 42 will drive the drive link 43 to move. The drive pull rod cooperates with the drive post 35 to drive the anti-loosening block 32 to slide along the extension direction of the unlocking groove 316 in the locking groove 314, so that the locking spring 34 does not limit the steel strip 1 located in the locking channel 311.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hose clamp designed to prevent loosening, characterized in that: The device includes a steel belt (1), a clamp assembly (2), and an anti-loosening assembly (3). The clamp assembly (2) is installed at one end of the steel belt (1), and the anti-loosening assembly (3) is installed on the steel belt (1) and spaced apart from the clamp assembly (2). The steel belt (1) is provided with adjustment holes (11) that cooperate with the clamp assembly (2) to tighten or loosen the steel belt (1). There are multiple adjustment holes (11), and the multiple adjustment holes (11) are arranged at intervals along the length direction of the steel belt (1). The anti-loosening component (3) includes a mounting block (31) installed on the steel strip (1) and an anti-loosening block (32) slidably installed on the mounting block (31). The mounting block (31) has a locking channel (311) for inserting one end of the steel strip (1) away from the clamp assembly (2). The anti-loosening block (32) is provided with a locking spring (34) that is inserted into the adjustment hole (11) to limit the steel strip (1) to be located in the locking channel (311).

2. The anti-loosening hose clamp according to claim 1, characterized in that: The mounting block (31) has a channel entrance (312) and a channel exit (313) that communicate with the locking channel (311). The locking spring (34) is inclinedly disposed on the anti-loosening block (32) to limit the steel strip (1) from disengaging from the channel entrance (312).

3. The anti-loosening hose clamp according to claim 2, characterized in that: The locking channel (311) is an S-shaped channel, and multiple locking springs (34) are spaced apart on the anti-loosening block (32). The multiple locking springs (34) limit the steel strip (1) located at different positions in the locking channel (311).

4. The anti-loosening hose clamp according to claim 3, characterized in that: The mounting block (31) has a locking groove (314) inside for the anti-loosening block (32) to be inserted and slide. The anti-loosening block (32) has a through groove (321) that communicates with the locking channel (311) and allows the steel strip (1) to pass through. The locking spring (34) is disposed on the groove wall of the through groove (321).

5. The anti-loosening hose clamp according to claim 4, characterized in that: The anti-loosening component (3) also includes a drive spring (33), which is located on the side of the anti-loosening block (32) near the steel strip (1). One end of the drive spring (33) abuts against the anti-loosening block (32), and the other end abuts against the groove wall of the locking groove (314).

6. The anti-loosening hose clamp according to claim 4, characterized in that: Two mounting blocks (31) are symmetrically arranged. The two mounting blocks (31) have the same structure and are welded together. The locking groove (314) is opened on the side where the two mounting blocks (31) abut. The locking groove (314) does not penetrate the mounting block (31).

7. The anti-loosening hose clamp according to claim 4, characterized in that: The clamp assembly (2) includes a clamp shell (21) mounted on the steel strip (1) and a screw (22) rotatably mounted on the clamp shell (21) and cooperating with the adjustment hole (11) to drive the other end of the steel strip (1) to move. A toothed ring (23) is sleeved on one side of the screw (22). The toothed ring (23) rotates synchronously with the screw (22). A plurality of helical teeth (231) are circumferentially arranged on one end of the toothed ring (23) near the clamp shell (21). An elastic plate (26) is inclinedly arranged on the clamp shell (21) and inserted into the helical teeth (231) to limit the reverse rotation of the screw (22). The elastic plate (26) extends radially out of the clamp shell (21) along the toothed ring (23).

8. The anti-loosening hose clamp according to claim 7, characterized in that: It also includes a linkage component (4) that is linked with the elastic plate (26) and drives the anti-loosening block (32) to slide so that the locking spring (34) disengages from the adjustment hole (11) and does not limit the steel strip (1). The linkage component (4) includes a first link (41), a second link (42), and a drive link (43). One side of the first link (41) is hinged to the elastic plate (26), and the other side is hinged to the second link (42). The side of the second link (42) away from the first link (41) extends toward the mounting block (31) and is hinged to the drive link (43). A drive post (35) is provided on the side wall of the anti-loosening block (32). An unlocking groove (316) is provided on the mounting block (31) for the drive post (35) to be inserted and directionally slid. The side of the drive link (43) away from the second link (42) is hinged to the drive post (35).

9. The anti-loosening hose clamp according to claim 8, characterized in that: The second link (42) is provided with a directional post (44) on the side near the mounting block (31), and the mounting block (31) is provided with a directional groove (315) for the directional post (44) to be inserted and slid.

10. A hose clamp for preventing loosening according to claim 7, characterized in that: The head shell (21) is rotatably mounted with an active bevel gear (24), and the screw (22) is mounted with a driven bevel gear (25) that meshes with the active bevel gear (24). The driven bevel gear (25) rotates synchronously with the screw (22), and the transmission ratio between the active bevel gear (24) and the driven bevel gear (25) is 2.

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