An adjustable eardrum fixing bracket

Abstract

The present invention discloses an adjustable eardrum fixing bracket, which relates to the technical field of musical instrument brackets and includes a main pipe member. Both ends of the main pipe member are rotatably installed with sub-pipe members. An adjustment mechanism is arranged inside the main pipe member. The adjustment mechanism includes a rotation assembly and a lifting assembly. The rotation assembly includes a first spline shaft and a second spline shaft. The first spline shaft and the second spline shaft are both rotatably connected with a toggle rod. A first spline sleeve is rotatably installed inside the main pipe member. A rotating member is sleeved on the first spline sleeve. A rocker is penetrated through the rotating member. A first spring for its reset is sleeved on the rocker. A plurality of jacks matched with the rocker are arranged on the first spline sleeve. The end of the sub-pipe member is fixedly connected with a ratchet wheel. The ratchet wheel is located at the connection between the main pipe member and the sub-pipe member. The ratchet wheel is coaxially connected with a second spline sleeve. The present invention can accurately adjust the height and angle of the eardrum, reduce the operation of repeated adjustment, thereby saving a large amount of time and quickly adjusting the eardrum to the required angle and height.

Description

Technical Field

[0001] The present invention relates to the technical field of musical instrument brackets, and particularly relates to an adjustable ear drum fixing bracket. Background Art

[0002] A drum set, also known as a jazz drum, is a very important percussion instrument in a jazz band. It usually consists of a foot-operated bass drum, also known as a "kick drum", a snare drum, two or more tom-toms, one or two hanging cymbals, a rhythm cymbal, and a pedal-operated hi-hat cymbal, etc. The ear drum is also called a tom-tom, and these drums all need to be supported and fixed by a support fixing bracket.

[0003] An ear drum support bracket with convenient height adjustment disclosed in a Chinese patent with the publication number CN213815527U. There is a cavity inside the support plate. There is a gear inside the cavity. A first hand screw is fixed on the rotating shaft on the left side of the gear. A rack is meshed on the other side of the gear. The upper ends of the rack are fixed on the front and rear sides of the lower side wall of the lifting plate. The front and rear sides of the upper side of the right side wall of the lifting plate are fixed with support rods. The right ends of the support rods are screwed with a first connecting piece. The first connecting piece is fixed on the left side wall of the fixed frame. A second connecting piece is slidably arranged on the left side wall of the fixed frame. The second connecting piece is screwed with a screw rod. The left end of the screw rod is inserted into an internally threaded tube. The left end of the internally threaded tube is screwed with the lifting plate. A motor is fixed on the left side wall of the lifting plate. The output shaft of the motor is fixedly connected with the internally threaded tube. The support bracket of this utility model adjusts the height of the ear drum according to the height of the striker, thereby improving the comfort of the striker during use, and adjusts the angle of the ear drum according to the habit of the striker, increasing the practicability.

[0004] The above technical solution still has the following problems.

[0005] 1. When the current ear drum support bracket adjusts the height and angle of the ear drum, the accuracy is insufficient, and it is very easy to cause excessive rotation and requires readjustment.

[0006] 2. The current fixing method of the ear drum is cumbersome and inconvenient for assembly and disassembly. Summary of the Invention

[0007] In view of the above problems, the present invention provides an adjustable ear drum fixing bracket to solve the problems of insufficient accuracy during the adjustment of the height and angle of the current ear drum fixing bracket, and the cumbersome fixing method of the ear drum, which is inconvenient for assembly and disassembly.

[0008] The technical solution adopted to solve the above technical problems is as follows: An adjustable eardrum fixing bracket, including a main pipe member, with sub-pipe members rotatably installed at both ends of the main pipe member. An adjustment mechanism is provided inside the main pipe member for adjusting the height and angle of the eardrum; the adjustment mechanism includes a rotation assembly and a lifting assembly, and the rotation assembly and the lifting assembly are linked. A quick clamping mechanism is provided at the end of the sub-pipe member, and the eardrum is detachably connected to the sub-pipe member through the quick clamping mechanism; the rotation assembly includes a first spline shaft and a second spline shaft, both the first spline shaft and the second spline shaft are rotatably installed inside the main pipe member, the first spline shaft, the second spline shaft, and the main pipe member are coaxially arranged, both the first spline shaft and the second spline shaft are rotatably connected to a toggle rod, the toggle rod penetrates the main pipe member and the two are slidably connected, a first spline sleeve is rotatably installed inside the main pipe member, the first spline sleeve cooperates with the first spline shaft and the second spline shaft, a rotating member is sleeved on the first spline sleeve, a rocker is penetrated through the rotating member and the two are slidably connected, a first spring for its reset is sleeved on the rocker, a number of jacks cooperating with the rocker are opened on the first spline sleeve, a ratchet is fixedly connected to the end of the sub-pipe member, the ratchet is located at the connection between the main pipe member and the sub-pipe member, the ratchet is coaxially connected to a second spline sleeve, and the first spline shaft and the second spline shaft are respectively slidably connected to the second spline sleeves on both sides. A locking assembly is provided at the connection between the main pipe member and the sub-pipe member.

[0009] Furthermore, the locking assembly includes a pawl and a locking rod. A number of pawls cooperating with the ratchet are hinged inside the main pipe member, a locking rod is connected to the pawl, a first movable groove cooperating with the locking rod is opened on the main pipe member, an unlocking ring is sleeved on the main pipe member and the two are rotatably connected, a second movable groove cooperating with the locking rod is opened on the unlocking ring, the locking rod moves in the first movable groove and the second movable groove, a first push rod is connected to the unlocking ring at the second movable groove, a sliding groove is opened on the locking rod, the first push rod slides in the sliding groove, a second spring for the reset of the pawl is sleeved on the locking rod, and a locking ring is slidably connected to the main pipe member for locking the locking rod.

[0010] Further, the lifting assembly includes a driving wheel and a cam. The driving wheel is rotatably installed in the main pipe. The driving wheel is coaxially arranged on the first spline shaft and is movably connected to the first spline shaft. A friction wheel cooperating with the driving wheel is coaxially connected to the first spline shaft. A rotating shaft is rotatably installed in the main pipe. The cam is sleeved on the rotating shaft. The driving wheel is linked with the rotating shaft through a belt. A connecting cylinder is sleeved outside the main pipe and is slidably connected to the main pipe. A support cylinder is slidably connected in the connecting cylinder. A top pipe is integrally arranged at the end of the main pipe. A third spring for providing a supporting force for the top pipe is arranged in the support cylinder. A sliding member cooperating with the cam is slidably installed in the main pipe. A fourth spring for providing a pulling force for the sliding member is connected to the sliding member. The end of the fourth spring is fixedly connected to the main pipe. Outer rods are arranged at both ends of the sliding member. A positioning plate is connected to the lower end of the outer rod. A plurality of clamping columns are hinged to the periphery of the positioning plate. A connecting rod is hinged to the end of the clamping column. A sliding ring is sleeved on the outer rod. The connecting rod is hinged to the sliding ring. A third moving groove is formed at the lower end of the outer rod. An inner rod member is slidably connected in the outer rod. A second push rod for pushing the sliding ring to slide is connected to the inner rod member. The second push rod slides in the third moving groove. A fifth spring for resetting the sliding ring is sleeved on the outer rod. A plurality of clamping plates for clamping the clamping columns are arranged in the support cylinder. Through holes for the clamping columns to pass through are formed in the plurality of clamping plates.

[0011] Further, the quick clamping mechanism includes a locking cylinder and a locking pin. The locking cylinder is rotatably installed at the end of the secondary pipe. A through hole for the locking pin to pass through is formed at one end of the locking cylinder. A positioning pin is arranged on the locking pin. Positioning holes cooperating with the positioning pin are formed on both sides of the locking cylinder. A fixing plate cooperating with the positioning hole is connected to the ear drum. A plurality of locking columns for locking the locking pin are slidably installed in the locking cylinder. A rotating member is rotatably installed in the locking cylinder. A plurality of arc-shaped grooves for driving the locking columns to slide are formed on the rotating member. A driving block is movably installed in the rotating member. A plurality of spiral strips are integrally arranged on the periphery of the driving block. A plurality of spiral grooves are formed at the connection between the rotating member and the driving block. The spiral strips are matched with the spiral grooves.

[0012] The beneficial effects of the present invention are as follows.

[0013] (1) Through the provided adjusting mechanism, the present invention can precisely adjust the height and angle of the ear drum, reduce the operation of repeated adjustment, thereby saving a large amount of time and quickly adjusting the ear drum to the required angle and height.

[0014] (2) Through the provided locking assembly, the present invention can lock the fixed frame after adjusting the angle, prevent the two secondary pipes from rotating, and thereby improve the stability of the ear drum.

[0015] (3) Through the provided quick clamping mechanism, when the ear drum needs to be replaced or maintained, the present invention can quickly disassemble and install the ear drum, with simple operation and good practicability. Description of the Drawings

[0016] Figure 1 This is the schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is the schematic diagram of the internal structure of the main pipe of the present invention.

[0018] Figure 3 This is the schematic diagram of the rotating component of the present invention.

[0019] Figure 4 This is the schematic diagram of the position of the ratchet wheel of the present invention.

[0020] Figure 5 This is the schematic diagram of the position of the locking ring of the present invention.

[0021] Figure 6 This is the schematic diagram of the position of the unlocking ring of the present invention.

[0022] Figure 7 is Figure 6 the enlarged view of part A in

[0023] Figure 8 This is the schematic diagram of the position of the connecting cylinder of the present invention.

[0024] Figure 9 This is the schematic diagram of the lifting component of the present invention Figure 1 .

[0025] Figure 10 is Figure 9 the enlarged view of part B in

[0026] Figure 11 This is the schematic diagram of the lifting component of the present invention Figure 2 .

[0027] Figure 12 This is the schematic diagram of the position of the inner rod of the present invention.

[0028] Figure 13 This is the schematic diagram of the position of the fixing plate of the present invention.

[0029] Figure 14 This is the schematic diagram of the position of the locking cylinder of the present invention.

[0030] Figure 15 This is the schematic diagram of the position of the rotating part of the present invention.

[0031] Figure 16 This is the schematic diagram of the position of the arc-shaped groove of the present invention.

[0032] Figure 17 This is the schematic diagram of the position of the spiral bar of the present invention.

[0033] Reference numerals: 1, main pipe; 2, auxiliary pipe; 3, adjusting mechanism; 31, rotating assembly; 311, first spline shaft; 312, second spline shaft; 313, toggle lever; 314, first spline sleeve; 315, rotating member; 316, rocker; 317, first spring; 318, jack; 319, ratchet; 3110, second spline sleeve; 32, lifting assembly; 321, drive wheel; 322, cam; 323, friction wheel; 324, rotating shaft; 325, belt; 326, connecting cylinder; 327, support cylinder; 328, jacking pipe; 329, third spring; 3210, sliding member; 3211, fourth spring; 3212, outer rod; 3213, positioning plate; 3214, clamping column; 3215, connecting rod; 3216, sliding ring; 3217, third moving groove; 3218, inner rod member; 3219, second push rod; 3220, fifth spring; 3221, clamping plate; 3222, through hole; 4, quick clamping mechanism; 41, locking cylinder; 42, locking pin; 43, through hole; 44, positioning pin; 45, positioning hole; 46, fixing plate; 47, locking column; 48, rotating member; 49, arc groove; 410, driving block; 411, spiral strip; 412, spiral groove; 5, locking assembly; 51, pawl; 52, locking rod; 53, first moving groove; 54, unlocking ring; 55, second moving groove; 56, first push rod; 57, sliding groove; 58, second spring; 59, locking ring. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] As Figure 1 、 Figure 2 shown, a kind of adjustable eardrum fixing bracket provided in this embodiment includes a main pipe 1. Auxiliary pipes 2 are rotatably installed at both ends of the main pipe 1. An adjusting mechanism 3 is arranged inside the main pipe 1 for adjusting the height and angle of the eardrum; the adjusting mechanism 3 includes a rotating assembly 31 and a lifting assembly 32. The rotating assembly 31 and the lifting assembly 32 are linked. A quick clamping mechanism 4 is arranged at the end of the auxiliary pipe 2. The eardrum is detachably connected to the auxiliary pipe 2 through the quick clamping mechanism 4.

[0036] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, the rotating assembly 31 includes a first spline shaft 311 and a second spline shaft 312. Both the first spline shaft 311 and the second spline shaft 312 are rotatably installed in the main pipe 1. The first spline shaft 311, the second spline shaft 312, and the main pipe 1 are coaxially arranged. Both the first spline shaft 311 and the second spline shaft 312 are rotatably connected to a toggle rod 313. The first spline shaft 311, the second spline shaft 312, and the toggle rod 313 can rotate relative to each other but cannot slide relative to each other, ensuring that when the toggle rod 313 moves, it drives the first spline shaft 311 and the second spline shaft 312 to move. The toggle rod 313 penetrates through the main pipe 1 and the two are slidably connected. A first spline sleeve 314 is rotatably installed in the main pipe 1. The first spline sleeve 314 cooperates with the first spline shaft 311 and the second spline shaft 312. A rotating member 315 is sleeved on the first spline sleeve 314. A rocker 316 is penetrated through the rotating member 315 and the two are slidably connected. A first spring 317 for resetting the rocker 316 is sleeved on the rocker 316. A number of jacks 318 cooperating with the rocker 316 are opened on the first spline sleeve 314. A ratchet 319 is fixedly connected to the end of the auxiliary pipe 2. The ratchet 319 is located at the connection between the main pipe 1 and the auxiliary pipe 2. The ratchet 319 is coaxially connected to a second spline sleeve 3110. The first spline shaft 311 and the second spline shaft 312 are respectively slidably connected to the second spline sleeves 3110 on both sides. A locking assembly 5 is provided at the connection between the main pipe 1 and the auxiliary pipe 2.

[0037] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, the locking assembly 5 includes a pawl 51 and a lock rod 52. A number of pawls 51 cooperating with the ratchet 319 are hinged in the main pipe 1. In this embodiment, the number of pawls 51 is three and they are equidistantly arranged along the circumferential direction of the ratchet 319. A lock rod 52 is connected to the pawl 51. A first moving slot 53 cooperating with the lock rod 52 is opened on the main pipe 1. An unlocking ring 54 is sleeved on the main pipe 1 and the two are rotatably connected. A second moving slot 55 cooperating with the lock rod 52 is opened on the unlocking ring 54. The lock rod 52 moves in the first moving slot 53 and the second moving slot 55. A first push rod 56 is connected to the unlocking ring 54 at the second moving slot 55. A sliding slot 57 is opened on the lock rod 52. The first push rod 56 slides in the sliding slot 57. A second spring 58 for resetting the pawl 51 is sleeved on the lock rod 52. A locking ring 59 is slidably connected to the main pipe 1 for locking the lock rod 52.

[0038] As Figure 1 , Figure 2 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12As shown, the lifting assembly 32 includes a driving wheel 321 and a cam 322. The driving wheel 321 is rotatably installed in the main pipe 1. The driving wheel 321 is coaxially arranged on the first spline shaft 311 and the two are movably connected. The first spline shaft 311 is coaxially connected with a friction wheel 323 that cooperates with the driving wheel 321. The toggle rod 313 drives the first spline shaft 311 to move, so that after the friction wheel 323 engages with the driving wheel 321, the friction wheel 323 has a high friction force, thereby driving the driving wheel 321 to rotate, and the main pipe 1 is rotated. A rotating shaft 324 is installed, and a cam 322 is sleeved on the rotating shaft 324. The driving wheel 321 is linked with the rotating shaft 324 through a belt 325. A connecting cylinder 326 is sleeved on the outer side of the main pipe 1 and the two are slidably connected. A supporting cylinder 327 is slidably connected in the connecting cylinder 326. A top pipe 328 is integrally provided at the end of the main pipe 1. A third spring 329 is provided in the supporting cylinder 327 to provide support for the top pipe 328. A sliding member 3210 that cooperates with the cam 322 is slidably installed in the main pipe 1. The sliding member 3210 is connected with a spring 329 that provides support for the top pipe 328. A fourth spring 3211 for tension is provided, and the end of the fourth spring 3211 is fixedly connected to the main pipe 1. Both ends of the sliding member 3210 are provided with an outer rod 3212, and the lower end of the outer rod 3212 is connected to a positioning plate 3213, and a plurality of clamping columns 3214 are hingedly connected to the peripheral side of the positioning plate 3213, and a connecting rod 3215 is hingedly connected to the end of the clamping column 3214, and a sliding ring 3216 is sleeved on the outer rod 3212, and the connecting rod 3215 is hinged to the sliding ring 3216, and a third movable groove 3217 is opened at the lower end of the outer rod 3212, and the outer rod 3212 slides inwardly. An inner rod 3218 is connected to the inner rod 3218, and a second push rod 3219 is connected to the inner rod 3218 for pushing the sliding ring 3216 to slide. The second push rod 3219 slides in the third movable groove 3217. A fifth spring 3220 for resetting the sliding ring 3216 is sleeved on the outer rod 3212. A plurality of clamping plates 3221 clamped with the clamping column 3214 are arranged in the support tube 327. The plurality of clamping plates 3221 realize multi-stage height adjustment operation, and a through hole 3222 is provided on the plurality of clamping plates 3221 for the clamping column 3214 to pass through.

[0039] like Figure 1 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17As shown in the figure, the quick clamping mechanism 4 includes a locking cylinder 41 and a locking pin 42. The locking cylinder 41 is rotatably installed at the end of the secondary pipe fitting 2. One end of the locking cylinder 41 is provided with a through hole 43 for the locking pin 42 to pass through. A positioning pin 44 is arranged on the locking pin 42. Positioning holes 45 are arranged on both sides of the locking cylinder 41 and are matched with the positioning pin 44. A fixing plate 46 matched with the positioning hole 45 is connected to the ear drum. A plurality of locking columns 47 for locking the locking pin 42 are slidably installed in the locking cylinder 41. A rotating member 48 is rotatably installed in the locking cylinder 41. A plurality of arc-shaped grooves 49 for driving the locking columns 47 to slide are arranged on the rotating member 48. In this embodiment, the number of the locking columns 47 and the arc-shaped grooves 49 is three. A driving block 410 is movably installed in the rotating member 48. A plurality of spiral strips 411 are integrally arranged on the periphery of the driving block 410. A plurality of spiral grooves 412 are arranged at the connection between the rotating member 48 and the driving block 410. The spiral strips 411 are matched with the spiral grooves 412. In this embodiment, the number of the spiral strips 411 and the spiral grooves 412 is three.

[0040] The working principle of the present invention is as follows.

[0041] Step 1: The lower end of the support cylinder 327 is connected to the big drum to install the ear drum. Align the fixing plate 46 on the ear drum with the positioning hole 45 on the locking cylinder 41. Align the locking pin 42 with the through hole 43 and insert it. Make the positioning pin 44 align with the positioning hole 45. Press down the locking pin 42 to engage with the driving block 410. Due to the cooperation of the spiral strips 411 and the spiral grooves 412, the rotating member 48 rotates in the locking cylinder 41. While rotating, the rotating member 48 drives the three locking columns 47 to slide in the locking cylinder 41 through the arc-shaped grooves 49. The three locking columns 47 move close to the locking pin 42 and finally are clamped with the locking pin 42 to lock the locking pin 42. At this time, the positioning pin 44 is inserted into the positioning hole 45 to lock the fixing plate 46 and the ear drum. For the disassembly operation of the ear drum, rotate the rotating member 48 from below to make the rotating member 48 rotate in the reverse direction. Then, through the arc-shaped grooves 49, the locking columns 47 are separated from the locking pin 42. After that, the locking pin 42 and the ear drum can be disassembled together. This installation and disassembly method is convenient and fast, and has good practicability.

[0042] Step 2: When the angle of the left eardrum needs to be adjusted, push the toggle lever 313 on the first spline shaft 311 to separate the first spline shaft 311 from the first spline sleeve 314. Push the toggle lever 313 on the second spline shaft 312 to engage the second spline shaft 312 with the first spline sleeve 314. During the movement of the second spline shaft 312, it is always engaged with the adjacent second spline sleeve 3110. Rotate the unlocking ring 54 to drive the first push rod 56 to rotate around the center of the ratchet 319. The first push rod 56 drives the locking rod 52 to move within the first movable slot 53 and the second movable slot 55. The locking rod 52 drives the pawl 51 to rotate and separate from the ratchet 319. Press the rocker 316 to slide within the rotating member 315. At this time, the first spring 317 is in a compressed state, so that the rocker 316 is inserted into the jack 318 on the first spline sleeve 314. Rotate the rocker 316 to make the first spline sleeve 314 rotate, and then make the second spline shaft 312 rotate, driving the ratchet 319 to rotate, and then driving the left auxiliary pipe fitting 2 to rotate, realizing the precise fine adjustment operation of the angle of the left eardrum. After the angle is adjusted to an appropriate position, rotate the unlocking ring 54 in the reverse direction to make the ratchet 319 engage with the pawl 51. Push the locking ring 59 to slide on the main pipe fitting 1. The locking ring 59 moves to the periphery of the unlocking ring 54 and limits the locking rod 52, making the locking rod 52 unable to move, and then locking the eardrum with the adjusted angle.

[0043] Step 3: When the angle of the right eardrum needs to be adjusted, push the toggle lever 313 on the second spline shaft 312 to separate the second spline shaft 312 from the first spline sleeve 314. Push the toggle lever 313 on the first spline shaft 311 to engage the first spline shaft 311 with the first spline sleeve 314. At this time, the first spline shaft 311 slides relative to the adjacent second spline sleeve 3110 without separation. The friction wheel 323 and the driving wheel 321 are in a separated state. Repeat the above process to adjust the angle of the right eardrum with the rocker 316 and then lock it.

[0044] Step 4: When it is necessary to lower the height, push the lever 313 on the second spline shaft 312 to separate the second spline shaft 312 from the first spline sleeve 314, and push the lever 313 on the first spline shaft 311 to engage the first spline shaft 311 with the first spline sleeve 314. At this time, the first spline shaft 311 is separated from the adjacent second spline sleeve 3110, so that the friction wheel 323 is engaged with the driving wheel 321. By shaking the rocker 316, the first spline shaft 311 rotates, driving the driving wheel 321 to rotate. The rotating driving wheel 321 drives the rotating shaft 324 and the cam 322 through the belt 325. When the cam 322 rotates, it pushes the sliding member 3210 downward. At this time, the fourth spring 3211 is in a stretched state. The downward-moving sliding member 3210 drives the outer rod 3212 downward. Under the action of the clamping post 3214 and the clamping plate 3221, the clamping post 3214 rotates, and drives the sliding ring 3216 to slide upward through the connecting rod 3215, realizing the contraction operation of the clamping post 3214. At this time, the outer rod 3212, the clamping post 3214, the positioning plate 3213, the sliding ring 3216, and the connecting rod 3215 can all pass through the through hole 3222. At the same time, manually press down the main pipe 1 so that the main pipe 1 and the tympanic membrane are at an appropriate height. Release the rocker 316. Due to the pulling force of the fourth spring 3211, the sliding member 3210 and the outer rod 3212 move upward, causing the clamping post 3214 to rotate in the reverse direction and finally be clamped on the clamping plate 3221. At this time, the clamping plate 3221 provides a downward acting force for the clamping post 3214 to lock the lowered height. The upper supporting force is all on the third spring 329. The lower the height, the shorter the third spring 329 is compressed. The third spring 329 provides an upward acting force for the top pipe 328, making the clamping post 3214 tightly clamped on the lower side of the clamping plate 3221.

[0045] Step 5: When it is necessary to raise the height, push the inner rods 3218 on both sides upward. The inner rods 3218 drive the sliding ring 3216 upward through the second push rod 3219, and then the mechanism composed of the clamping post 3214, the connecting rod 3215, and the sliding ring 3216 contracts. Due to the action of the third spring 329, the tympanic membrane and the main pipe 1 move upward as a whole. At the same time, manually press down the main pipe 1. After the main pipe 1 and the tympanic membrane are at an appropriate height, release the inner rod 3218. Due to the acting forces of the fourth spring 3211 and the fifth spring 3220, the mechanism composed of the clamping post 3214, the connecting rod 3215, and the sliding ring 3216 expands and is stably clamped with the clamping plate 3221, thus realizing the operation of raising the height. Due to the action of the third spring 329, the top pipe 328, the main pipe 1, the sliding member 3210, the outer rod 3212, and the clamping post 3214 always have an upward movement tendency. The clamping plate 3221 in the support cylinder 327 always provides a downward acting force for the clamping post 3214 to clamp it.

[0046] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An adjustable eardrum fixing bracket, characterized in that: it includes a main pipe member (1), both ends of the main pipe member (1) are rotatably installed with auxiliary pipe members (2), and an adjusting mechanism (3) is arranged inside the main pipe member (1) for adjusting the height and angle of the eardrum; the adjusting mechanism (3) includes a rotating assembly (31) and a lifting assembly (32), the rotating assembly (31) and the lifting assembly (32) are linked, and a quick clamping mechanism (4) is arranged at the end of the auxiliary pipe member (2), and the eardrum is detachably connected to the auxiliary pipe member (2) through the quick clamping mechanism (4); The rotating assembly (31) includes a first spline shaft (311) and a second spline shaft (312), the first spline shaft (311) and the second spline shaft (312) are both rotatably installed inside the main pipe member (1), the first spline shaft (311), the second spline shaft (312) and the main pipe member (1) are coaxially arranged, both the first spline shaft (311) and the second spline shaft (312) are rotatably connected with a shifting rod (313), the shifting rod (313) penetrates through the main pipe member (1) and the shifting rod (313) is slidably connected to the main pipe member (1), a first spline sleeve (314) is rotatably installed inside the main pipe member (1), the first spline sleeve (314) is matched with the first spline shaft (311) and the second spline shaft (312), a rotating member (315) is sleeved on the first spline sleeve (314), a rocker (316) is penetrated through the rotating member (315) and the two are slidably connected, a first spring (317) for its reset is sleeved on the rocker (316), a plurality of jacks (318) matched with the rocker (316) are arranged on the first spline sleeve (314), a ratchet wheel (319) is fixedly connected to the end of the auxiliary pipe member (2), the ratchet wheel (319) is located at the connection between the main pipe member (1) and the auxiliary pipe member (2), the ratchet wheel (319) is coaxially connected with a second spline sleeve (3110), and the first spline shaft (311) and the second spline shaft (312) are respectively slidably connected with the second spline sleeves (3110) on both sides, and a locking assembly (5) is arranged at the connection between the main pipe member (1) and the auxiliary pipe member (2).

2. An adjustable eardrum fixing bracket according to claim 1, characterized in that: The locking assembly (5) includes a pawl (51) and a locking rod (52). A plurality of pawls (51) that cooperate with the ratchet wheel (319) are hinged inside the main pipe member (1). A locking rod (52) is connected to the pawl (51). A first moving groove (53) that cooperates with the locking rod (52) is formed in the main pipe member (1). An unlocking ring (54) is sleeved on the main pipe member (1) and the two are rotatably connected. A second moving groove (55) that cooperates with the locking rod (52) is formed in the unlocking ring (54). The locking rod (52) moves in the first moving groove (53) and the second moving groove (55). A first push rod (56) is connected to the unlocking ring (54) at the second moving groove (55). A sliding groove (57) is formed in the locking rod (52). The first push rod (56) slides in the sliding groove (57). A second spring (58) for resetting the pawl (51) is sleeved on the locking rod (52). A locking ring (59) is slidably connected to the main pipe member (1) and is used to lock the locking rod (52).

3. The adjustable eardrum fixing bracket according to claim 1, characterized in that: The lifting assembly (32) includes a driving wheel (321) and a cam (322). The driving wheel (321) is rotatably installed in the main pipe (1). The driving wheel (321) is coaxially arranged on the first spline shaft (311) and the two are movably connected. A friction wheel (323) cooperating with the driving wheel (321) is coaxially connected to the first spline shaft (311). A rotating shaft (324) is rotatably installed in the main pipe (1). The cam (322) is sleeved on the rotating shaft (324). The driving wheel (321) is linked with the rotating shaft (324) through a belt (325). A connecting cylinder (326) is sleeved outside the main pipe (1) and the two are slidably connected. A support cylinder (327) is slidably connected in the connecting cylinder (326). A top pipe (328) is integrally arranged at the end of the main pipe (1). A third spring (329) for providing a supporting force for the top pipe (328) is arranged in the support cylinder (327). A sliding member (3210) cooperating with the cam (322) is slidably installed in the main pipe (1). A fourth spring (3211) for providing a pulling force for the sliding member (3210) is connected to the sliding member (3210). The end of the fourth spring (3211) is fixedly connected to the main pipe (1). Outer rods (3212) are arranged at both ends of the sliding member (3210). A positioning plate (3213) is connected to the lower end of the outer rod (3212). A plurality of clamping columns (3214) are hinged on the periphery of the positioning plate (3213). A connecting rod (3215) is hinged to the end of the clamping column (3214). A sliding ring (3216) is sleeved on the outer rod (3212). The connecting rod (3215) is hinged to the sliding ring (3216). A third moving groove (3217) is formed at the lower end of the outer rod (3212). An inner rod member (3218) is slidably connected in the outer rod (3212). A second push rod (3219) for pushing the sliding ring (3216) to slide is connected to the inner rod member (3218). The second push rod (3219) slides in the third moving groove (3217). A fifth spring (3220) for resetting the sliding ring (3216) is sleeved on the outer rod (3212). A plurality of clamping plates (3221) for clamping the clamping column (3214) are arranged in the support cylinder (327). Through holes (3222) for the clamping column (3214) to pass through are formed on all the plurality of clamping plates (3221).

4. A regulated eardrum fixing bracket according to claim 1, wherein: The quick clamping mechanism (4) includes a locking cylinder (41) and a locking pin (42). The locking cylinder (41) is rotatably installed at the end of the secondary pipe fitting (2). A through hole (43) for the locking pin (42) to pass through is provided at one end of the locking cylinder (41). A positioning pin (44) is provided on the locking pin (42). Positioning holes (45) that cooperate with the positioning pin (44) are provided on both sides of the locking cylinder (41). A fixing plate (46) that cooperates with the positioning hole (45) is connected to the ear drum. A plurality of locking columns (47) for locking the locking pin (42) are slidably installed in the locking cylinder (41). A rotating member (48) is rotatably installed in the locking cylinder (41). A plurality of arc-shaped grooves (49) for driving the locking columns (47) to slide are provided on the rotating member (48). A driving block (410) is movably installed in the rotating member (48). A plurality of spiral strips (411) are integrally provided on the circumferential side of the driving block (410). A plurality of spiral grooves (412) are provided at the connection between the rotating member (48) and the driving block (410). The spiral strips (411) cooperate with the spiral grooves (412).

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