Double-end spline connecting device

Abstract

The invention relates to the technical field of mechanical maintenance, and discloses a double-end spline connecting device which comprises an extension mechanism, the extension mechanism comprises a transmission extension column, a driven spline head and a driving spline head, the driving spline head is integrally arranged between the transmission extension column and the driven spline head, and the transmission extension column is connected with the driven spline head; a pre-insertion positioning mechanism is movably arranged in the extension mechanism, a one-way meshing mechanism is mounted on the surface of the extension mechanism, a dual-mode switching mechanism is arranged on the surface of the one-way meshing mechanism, and a telescopic prying mechanism is arranged on the surface of the dual-mode switching mechanism. According to the double-end spline connecting device, the extending mechanism, the pre-insertion positioning mechanism, the one-way meshing mechanism, the dual-mode switching mechanism and the telescopic prying mechanism are arranged, so that the double-end spline connecting device can be inserted into a spline groove in advance by means of the pre-insertion positioning mechanism during use; and it is ensured that the extension mechanism can achieve multiple times of accurate alignment and reliable positioning along the pre-positioning track even under the working condition of the deep slit, and accidental disengagement is effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of mechanical maintenance technology, specifically to a double-headed spline connection device. Background Technology

[0002] A splined shaft is a type of mechanical transmission shaft. Like a parallel key, semi-circular key, and wedge key, it transmits mechanical torque. It has longitudinal keyways on its outer surface, and the rotating parts fitted on the shaft also have corresponding keyways to keep them rotating synchronously with the shaft. While rotating, some of them can also slide longitudinally on the shaft, such as gearbox shift gears.

[0003] In the field of military technology, when the leveling mechanism of a weapon system cannot extend or retract normally due to mechanical jamming or poor contact of the sensing signal, a double-ended splined shaft is required as the main mechanical transmission shaft. It is inserted into the spline groove of the splined bolt to transmit torque for maintenance. However, for splined bolts in deep and narrow slots, the double-ended splined shaft is still difficult to achieve effective engagement after initial alignment with the spline groove. If the splined shaft accidentally comes out during the adjustment process, a tedious repositioning operation is required, which significantly affects the maintenance efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a double-headed spline connection device, which solves the problems mentioned in the background.

[0005] This invention provides the following technical solution: a double-headed spline connection device, comprising: an extension mechanism, the extension mechanism including a drive extension column, a driven spline head, and a drive spline head, the drive spline head being integrally disposed between the drive extension column and the driven spline head; a pre-insertion positioning mechanism being movably disposed inside the extension mechanism; a one-way engagement mechanism being mounted on the surface of the extension mechanism; a dual-mode conversion mechanism being disposed on the surface of the one-way engagement mechanism; a telescopic prying mechanism being disposed on the surface of the dual-mode conversion mechanism; the extension mechanism also includes a through hole, the through hole being formed between the drive extension column and the driven spline head; the pre-insertion positioning mechanism including an extension guide column, a round end, a handle, a clamping slip ring, and a clamping mechanism. The spring, the extended guide column is movably inserted into the through hole, the round end is integrally set at one end of the extended guide column, and the handle is fixedly sleeved on the other end of the extended guide column, the compression slip ring is movably sleeved on the surface of the extended guide column, the compression spring is movably sleeved on the surface of the extended guide column, and the compression spring is located between the compression slip ring and the handle, the one-way engagement mechanism includes a keyway sleeve, the keyway sleeve is movably sleeved on the surface of the driving spline head, and the inner wall of the keyway sleeve is engaged with the surface of the driving spline head, the dual-mode conversion mechanism includes a conversion seat, the conversion seat surrounds the outer periphery of the keyway sleeve, and the telescopic prying mechanism includes a prying insert, the prying insert is located on the surface of the conversion seat.

[0006] Preferably, the extension mechanism further includes a damping block, a safety pre-crack groove, a threaded head, and a positioning magnet ring. The damping block is fixedly connected inside the transmission extension column, the safety pre-crack groove is formed on the surface of the transmission extension column, the threaded head is integrally disposed at one end of the active spline head, and the positioning magnet ring is fixedly connected inside the active spline head.

[0007] Preferably, the extension mechanism further includes a fixed threaded cylinder and a rubber ring, wherein the fixed threaded cylinder is threadedly connected to the surface of the threaded head, and the rubber ring is fixedly connected to one end of the fixed threaded cylinder.

[0008] Preferably, the pre-insertion positioning mechanism further includes a bellows, which is fixedly connected between the grip and the compression slip ring, and the compression spring is located inside the bellows.

[0009] Preferably, the one-way engagement mechanism further includes an armature ring, a one-way ratchet, and a protective ring. The armature ring is fixedly connected inside the keyway sleeve, the one-way ratchet is fixedly sleeved on the surface of the keyway sleeve, and the protective ring is fixedly sleeved on the surface of the keyway sleeve.

[0010] Preferably, the one-way engagement mechanism further includes a mounting ring, an inner seat, a one-way ratchet, and an engagement spring. The mounting ring is rotatably connected to the surface of the keyway sleeve via a bearing. The one-way ratchet is rotatably connected to the inside of the mounting ring via the inner seat. The engagement spring is fixedly connected to the surface of the one-way ratchet, and the surface of the engagement spring is slidably connected to the inner wall of the mounting ring. The one-way ratchet is engaged with the one-way ratchet wheel.

[0011] Preferably, the dual-mode adapter mechanism further includes a rotating shaft, a fixed insert cylinder, a fixed insert hole, and a first observation hole. The rotating shaft is fixedly installed inside the adapter base. The inner wall of the adapter base is fixedly connected to the surface of the mounting ring. The fixed insert cylinder is integrally disposed inside the adapter base. The fixed insert hole is embedded in one end of the fixed insert cylinder. The first observation hole is opened through the surface of the fixed insert cylinder.

[0012] Preferably, the dual-mode adapter further includes a movable insert, a movable insertion hole, a second observation hole, and a threaded engagement block. The movable insert is rotatably connected to the inside of the adapter via a rotating shaft. The movable insertion hole is embedded in one end of the movable insert. The second observation hole is opened through the surface of the movable insert. The threaded engagement block is fixedly connected to the inside of the movable insert.

[0013] Preferably, the telescopic prying mechanism further includes a limiting slide cylinder and a threaded joint. The limiting slide cylinder is fixedly connected to the inner wall of one end of the prying cylinder, and the threaded joint is integrally disposed at the end of the prying cylinder away from the limiting slide cylinder. When the prying cylinder is docked with the fixed cylinder, the surface of the threaded joint is slidably connected to the inner wall of the fixed insertion hole. When the prying cylinder is docked with the moving cylinder, the surface of the threaded joint is engaged with the surface of the threaded engagement block.

[0014] Preferably, the telescopic prying mechanism further includes a telescopic column, a gripping end, an anti-slip sleeve, and a damping plate. The telescopic column is disposed inside the prying cylinder, and the surface of the telescopic column is slidably connected to the inner wall of the limiting slide cylinder. The gripping end is integrally disposed at one end of the telescopic column. The anti-slip sleeve is fixedly sleeved on the surface of one end of the telescopic column, and the surface of the anti-slip sleeve is slidably connected to the inner wall of the prying cylinder. The damping plate is fixedly connected inside the anti-slip sleeve, and the surface of the damping plate is slidably connected to the inner wall of the prying cylinder.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This double-headed spline connection device, through its extension mechanism, pre-insertion positioning mechanism, one-way engagement mechanism, dual-mode conversion mechanism, and telescopic prying mechanism, can be pre-inserted into the spline groove during use with the help of the pre-insertion positioning mechanism. This ensures that the extension mechanism can achieve multiple precise alignments and reliable positioning along the pre-positioning trajectory even in deep and narrow slit conditions, effectively preventing accidental dislodgement.

[0016] This double-headed spline connection device, through its transmission extension column, driven spline head, driving spline head, through hole, damping block, safety pre-crack groove, threaded head, positioning magnet ring, fixing threaded cylinder, and rubber ring, enables transmission between the driving and driven spline heads via the transmission extension column during use, ensuring torque transmission. Simultaneously, the safety pre-crack groove ensures disconnection when the transmission extension column is disconnected, improving safety performance.

[0017] This double-ended spline connection device, through the setting of an extension guide post, a round end, a handle, a clamping slip ring, a clamping spring, and a bellows, can ensure that the extension post can be quickly aligned with the spline groove in the event of accidental disengagement during use.

[0018] This double-headed spline connection device, through the keyway sleeve, armature ring, one-way ratchet, protective ring, fitting ring, inner seat, one-way ratchet, and meshing spring, can ensure that the torsion angle gradually accumulates when the keyway sleeve swings by the cooperation of the one-way ratchet and one-way ratchet, avoiding large-scale twisting of the insert and ensuring that the device can be operated in narrow positions.

[0019] This double-headed spline connection device, through the provided adapter, rotating shaft, fixed insert, fixed insert hole, first observation hole, movable insert, movable insert hole, second observation hole, and threaded engagement block, enables the fixed insert to quickly engage the prying insert during use, and can reduce the twisting space by changing the angle of the movable insert when the space is small.

[0020] This double-headed spline connection device, through its pry-off insert, limiting slide, threaded joint, telescopic column, gripping end, anti-slip sleeve, and damping plate, can adjust the length of the telescopic column according to needs, ensuring that the device can adapt to different torsional spaces. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a schematic diagram of the extended mechanism structure of the present invention; Figure 4 This is a cross-sectional view of the pre-insertion positioning mechanism of the present invention. Figure 5 This is a cross-sectional view of the telescopic prying mechanism of the present invention at its location; Figure 6 This is a schematic diagram of the connection structure between the unidirectional engagement mechanism and the dual-mode transition mechanism of the present invention; Figure 7 This is a cross-sectional view of the connection structure between the extension mechanism and the one-way meshing mechanism of the present invention. Figure 8 This is an exploded structural diagram of the location of the unidirectional engagement mechanism and the dual-mode transition mechanism of the present invention; Figure 9 This is a schematic diagram of the structure at the location of the second observation hole in this invention; Figure 10 This is a cross-sectional view of the location of the unidirectional meshing mechanism of the present invention.

[0022] In the picture: 101. Drive extension column; 102. Driven spline head; 103. Driven spline head; 104. Through hole; 105. Damping block; 106. Safety pre-crack groove; 107. Threaded head; 108. Positioning magnet ring; 109. Fixed threaded cylinder; 110. Rubber ring; 201. Extension guide column; 202. Round end; 203. Handle; 204. Compression slip ring; 205. Compression spring; 206. Bellows; 301. Keyway sleeve; 302. Armature ring; 303. One-way ratchet; 304. Anti- 305. Retaining ring; 306. Fitting ring; 307. Inner connector; 308. One-way ratchet; 409. Engaging spring; 400. Adapter; 401. Rotating shaft; 402. Fixed insert; 403. Fixed insertion hole; 404. First observation hole; 405. Moving insert; 406. Moving insertion hole; 407. Second observation hole; 408. Threaded engagement block; 501. Prying insert; 502. Limiting slide; 503. Threaded connector; 504. Telescopic column; 505. Holding end; 506. Anti-slip sleeve; 507. Damping plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-10A double-headed spline connection device includes: an extension mechanism, which comprises a drive extension column 101, a driven spline head 102, and a drive spline head 103. The drive spline head 103 is integrally disposed between the drive extension column 101 and the driven spline head 102. A pre-insertion positioning mechanism is movably disposed inside the extension mechanism. A one-way engagement mechanism is mounted on the surface of the extension mechanism. A dual-mode conversion mechanism is disposed on the surface of the one-way engagement mechanism. A telescopic prying mechanism is disposed on the surface of the dual-mode conversion mechanism. The extension mechanism also includes a through hole 104, which is formed between the transmission extension post 101 and the driven spline head 102. The pre-insertion positioning mechanism includes an extension guide post 201, a round end 202, a handle 203, a compression slip ring 204, and a compression spring 205. The extension guide post 201 is movably inserted into the interior of the through hole 104. The round end 202 is integrally disposed at one end of the extension guide post 201, and the handle 203 is fixedly sleeved on the other end of the extension guide post 201. At the end, a compression slip ring 204 is movably sleeved on the surface of the extended guide post 201, and a compression spring 205 is movably sleeved on the surface of the extended guide post 201, with the compression spring 205 located between the compression slip ring 204 and the handle 203. The one-way engagement mechanism includes a keyway sleeve 301, which is movably sleeved on the surface of the drive spline head 103, and the inner wall of the keyway sleeve 301 is engaged with the surface of the drive spline head 103. The dual-mode conversion mechanism includes an adapter seat 401, which... The seat 401 surrounds the outer periphery of the keyway sleeve 301. The telescopic prying mechanism includes a prying insert 501, which is located on the surface of the adapter seat 401. Through the provided extension mechanism, pre-insertion positioning mechanism, one-way engagement mechanism, dual-mode adapter mechanism and telescopic prying mechanism, it can be pre-inserted into the spline groove with the help of the pre-insertion positioning mechanism during use. This ensures that the extension mechanism can achieve multiple accurate alignments and reliable positioning along the pre-positioning trajectory even in deep and narrow slot conditions, effectively preventing accidental dislodgement.

[0025] The extension mechanism also includes a damping block 105, a safety pre-crack groove 106, a threaded head 107, and a positioning magnet ring 108. The damping block 105 is fixedly connected inside the transmission extension column 101, the safety pre-crack groove 106 is opened on the surface of the transmission extension column 101, the threaded head 107 is integrally set at one end of the active spline head 103, and the positioning magnet ring 108 is fixedly connected inside the active spline head 103.

[0026] The extension mechanism also includes a fixed threaded cylinder 109 and a rubber ring 110. The fixed threaded cylinder 109 is threaded onto the surface of the threaded head 107, and the rubber ring 110 is fixedly connected to one end of the fixed threaded cylinder 109. Through the provided transmission extension column 101, driven spline head 102, driving spline head 103, through hole 104, damping block 105, safety pre-crack groove 106, threaded head 107, positioning magnet ring 108, fixed threaded cylinder 109 and rubber ring 110, the transmission between the driving spline head 103 and the driven spline head 102 can be realized through the transmission extension column 101 during use, ensuring torque transmission. At the same time, through the setting of the safety pre-crack groove 106, the transmission extension column 101 can be disconnected through the safety pre-crack groove 106, improving the safety effect.

[0027] The pre-insertion positioning mechanism also includes a bellows 206, which is fixedly connected between the handle 203 and the compression slip ring 204. The compression spring 205 is located inside the bellows 206. Through the extended guide post 201, round end 202, handle 203, compression slip ring 204, compression spring 205 and bellows 206, the extended guide post 201 can be used to guide the transmission extension post 101 to ensure that it can be quickly aligned with the spline groove after it is accidentally dislodged.

[0028] The one-way engagement mechanism also includes an armature ring 302, a one-way ratchet 303, and a protective ring 304. The armature ring 302 is fixedly connected inside the keyway sleeve 301, the one-way ratchet 303 is fixedly sleeved on the surface of the keyway sleeve 301, and the protective ring 304 is fixedly sleeved on the surface of the keyway sleeve 301.

[0029] The one-way engagement mechanism further includes a mounting ring 305, an inner seat 306, a one-way ratchet 307, and an engagement spring 308. The mounting ring 305 is rotatably connected to the surface of the keyway sleeve 301 via a bearing. The one-way ratchet 307 is rotatably connected to the inside of the mounting ring 305 via the inner seat 306. The engagement spring 308 is fixedly connected to the surface of the one-way ratchet 307, and the surface of the engagement spring 308 is slidably connected to the inner wall of the mounting ring 305. The ratchet 307 engages with the one-way ratchet 303. Through the keyway sleeve 301, armature ring 302, one-way ratchet 303, protective ring 304, mounting ring 305, inner seat 306, one-way ratchet 307 and engagement spring 308, the one-way ratchet 303 and one-way ratchet 307 work together to ensure that the torsion angle of the keyway sleeve 301 gradually accumulates when it swings, avoiding large-scale twisting of the insert 501 and ensuring that the device can be operated in narrow positions.

[0030] The dual-mode adapter mechanism also includes a rotating shaft 402, a fixed insertion cylinder 403, a fixed insertion hole 404, and a first observation hole 405. The rotating shaft 402 is fixedly installed inside the adapter base 401. The inner wall of the adapter base 401 is fixedly connected to the surface of the mounting ring 305. The fixed insertion cylinder 403 is integrally disposed inside the adapter base 401. The fixed insertion hole 404 is embedded in one end of the fixed insertion cylinder 403. The first observation hole 405 is opened through the surface of the fixed insertion cylinder 403.

[0031] The dual-mode adapter mechanism also includes a movable insert 406, a movable insertion hole 407, a second observation hole 408, and a threaded engagement block 409. The movable insert 406 is rotatably connected to the inside of the adapter 401 via a rotating shaft 402. The movable insertion hole 407 is embedded in one end of the movable insert 406. The second observation hole 408 is opened through the surface of the movable insert 406. The threaded engagement block 409 is fixedly connected to the inside of the movable insert 406. Through the adapter 401, rotating shaft 402, fixed insert 403, fixed insertion hole 404, first observation hole 405, movable insert 406, movable insertion hole 407, second observation hole 408, and threaded engagement block 409, the fixed insert 403 can quickly engage the prying insert 501 during use, and the movable insert 406 can be used to change the angle and reduce the twisting space when the space is small.

[0032] The telescopic prying mechanism also includes a limiting slide 502 and a threaded joint 503. The limiting slide 502 is fixedly connected to the inner wall of one end of the prying insert 501. The threaded joint 503 is integrally disposed at the end of the prying insert 501 away from the limiting slide 502. When the prying insert 501 is connected to the fixed insert 403, the surface of the threaded joint 503 is slidably connected to the inner wall of the fixed insert hole 404. When the prying insert 501 is connected to the moving insert 406, the surface of the threaded joint 503 is engaged with the surface of the threaded engagement block 409.

[0033] The telescopic prying mechanism further includes a telescopic column 504, a gripping end 505, an anti-slip sleeve 506, and a damping plate 507. The telescopic column 504 is disposed inside the prying insert 501, and the surface of the telescopic column 504 is slidably connected to the inner wall of the limiting slide cylinder 502. The gripping end 505 is integrally disposed at one end of the telescopic column 504. The anti-slip sleeve 506 is fixedly sleeved on the surface of one end of the telescopic column 504, and the surface of the anti-slip sleeve 506 is flush with the prying insert. The inner wall of 501 is slidably connected, and the damping plate 507 is fixedly connected inside the anti-slip sleeve 506. The surface of the damping plate 507 is slidably connected to the inner wall of the prying insert 501. Through the prying insert 501, the limiting slide 502, the threaded joint 503, the telescopic column 504, the holding end 505, the anti-slip sleeve 506 and the damping plate 507, the length of the telescopic column 504 can be adjusted as needed to ensure that the device can adapt to different torsional space sizes.

[0034] Working principle: During installation, the keyway sleeve 301 is inserted onto the surface of the active spline head 103, and then the fixed threaded sleeve 109 is twisted onto the surface of the threaded head 107 to fix the active spline head 103. The extended guide pin 201 is inserted from one end of the active spline head 103 into the through hole 104. The threaded connector 503 is directly inserted into the fixed insertion hole 404, or the threaded connector 503 is twisted into the inside of the moving insertion hole 407. In use, press the transmission extension column 101 to push out the end of the extension guide column 201, then insert the round end 202 into the spline groove so that the extension guide column 201 is positioned in the spline groove. Then release the transmission extension column 101 so that the driven spline head 102 is inserted into the spline groove along the extension guide column 201. If it is not aligned, the angle of the extension guide column 201 can be adjusted so that the driven spline head 102 is inserted into the spline groove. After the driven spline head 102 is inserted into the spline groove, the compression spring 205 compresses the compression slip ring 204 so that the compression slip ring 204 presses the threaded head 107, thereby ensuring that the driven spline head 102 will not easily come out. Then, pull out the telescopic column 504 to increase the lever arm, and move the telescopic column 504 up and down. The telescopic column 504 moves the fixed insert 403 or the movable insert 406 through the prying insert 501, causing the adapter 401 to swing. When the adapter 401 moves counterclockwise, it will drive the one-way ratchet 307 to move along the one-way ratchet 303 in the forward direction, thus disengaging along the forward direction of the one-way ratchet 303. When the adapter 401 moves clockwise, it will drive the one-way ratchet 307 to move along the one-way ratchet 303 in the reverse direction, thus pushing the one-way ratchet 303 to rotate clockwise. Through the continuous rotation of the one-way ratchet 303, the keyway sleeve 301 will rotate synchronously, thus causing the keyway sleeve 301 to drive the active spline head 103 and the transmission extension column 101 to rotate synchronously. The transmission extension column 101 transmits torque to the spline groove through the driven spline head 102, causing the spline bolt to rotate. At the same time, after the driven spline head 102 is positioned, the extension guide column 201 can be pulled out by holding the transmission extension column 101, and the positioning can be maintained by holding the transmission extension column 101. When it is necessary to change the rotation direction, unscrew the fixed threaded cylinder 109 and flip the fitting ring 305 back into the drive spline head 103 to change the one-way meshing direction. If the rotation space is relatively small, the threaded connector 503 can be twisted into the moving insert 406. By changing the orientation of the moving insert 406, the threaded connector 503 can be turned outward to reduce the twisting radius. If quick insertion and removal are required, the threaded connector 503 can be directly inserted into the fixed insert 403.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-ended spline connection device, comprising: An extension mechanism, comprising a transmission extension column (101), a driven spline head (102), and a driving spline head (103), wherein the driving spline head (103) is integrally disposed between the transmission extension column (101) and the driven spline head (102), characterized in that a pre-insertion positioning mechanism is movably disposed inside the extension mechanism, a one-way engagement mechanism is mounted on the surface of the extension mechanism, a dual-mode conversion mechanism is disposed on the surface of the one-way engagement mechanism, and a telescopic prying mechanism is disposed on the surface of the dual-mode conversion mechanism; The extension mechanism also includes a through hole (104), which is formed between the transmission extension column (101) and the driven spline head (102). The pre-insertion positioning mechanism includes an extension guide column (201), a round end (202), a handle (203), a pressure slip ring (204), and a pressure spring (205). The extension guide column (201) is movably inserted into the through hole (104). The round end (202) is integrally disposed at one end of the extension guide column (201), and the handle (203) is fixedly sleeved at the other end of the extension guide column (201). The pressure slip ring (204) is movably sleeved on the surface of the extension guide column (201). The compression spring (205) is movably sleeved on the surface of the extension guide post (201), and the compression spring (205) is located between the compression slip ring (204) and the handle (203). The one-way engagement mechanism includes a keyway sleeve (301), which is movably sleeved on the surface of the active spline head (103), and the inner wall of the keyway sleeve (301) is engaged with the surface of the active spline head (103). The dual-mode conversion mechanism includes a conversion seat (401), which surrounds the outer periphery of the keyway sleeve (301). The telescopic prying mechanism includes a prying insert (501), which is located on the surface of the conversion seat (401).

2. The double-headed spline connection device according to claim 1, characterized in that, The extension mechanism also includes a damping block (105), a safety pre-crack groove (106), a threaded head (107), and a positioning magnet ring (108). The damping block (105) is fixedly connected to the inside of the transmission extension column (101). The safety pre-crack groove (106) is opened on the surface of the transmission extension column (101). The threaded head (107) is integrally set at one end of the active spline head (103). The positioning magnet ring (108) is fixedly connected to the inside of the active spline head (103).

3. The double-headed spline connection device according to claim 2, characterized in that, The extension mechanism also includes a fixed threaded cylinder (109) and a rubber ring (110). The fixed threaded cylinder (109) is threadedly connected to the surface of the threaded head (107), and the rubber ring (110) is fixedly connected to one end of the fixed threaded cylinder (109).

4. The double-headed spline connection device according to claim 1, characterized in that, The pre-insertion positioning mechanism also includes a bellows (206), which is fixedly connected between the handle (203) and the pressure slip ring (204), and the pressure spring (205) is located inside the bellows (206).

5. A double-headed spline connection device according to claim 1, characterized in that, The one-way engagement mechanism further includes an armature ring (302), a one-way ratchet (303), and a protective ring (304). The armature ring (302) is fixedly connected inside the keyway sleeve (301), the one-way ratchet (303) is fixedly sleeved on the surface of the keyway sleeve (301), and the protective ring (304) is fixedly sleeved on the surface of the keyway sleeve (301).

6. A double-headed spline connection device according to claim 5, characterized in that, The one-way engagement mechanism further includes a mounting ring (305), an inner seat (306), a one-way ratchet (307), and an engagement spring (308). The mounting ring (305) is rotatably connected to the surface of the keyway sleeve (301) via a bearing. The one-way ratchet (307) is rotatably connected to the inside of the mounting ring (305) via the inner seat (306). The engagement spring (308) is fixedly connected to the surface of the one-way ratchet (307), and the surface of the engagement spring (308) is slidably connected to the inner wall of the mounting ring (305). The one-way ratchet (307) is engaged with the one-way ratchet (303).

7. A double-headed spline connection device according to claim 1, characterized in that, The dual-mode adapter mechanism further includes a rotating shaft (402), a fixed insert cylinder (403), a fixed insert hole (404), and a first observation hole (405). The rotating shaft (402) is fixedly installed inside the adapter seat (401). The inner wall of the adapter seat (401) is fixedly connected to the surface of the mounting ring (305). The fixed insert cylinder (403) is integrally disposed inside the adapter seat (401). The fixed insert hole (404) is embedded in one end of the fixed insert cylinder (403). The first observation hole (405) is opened through the surface of the fixed insert cylinder (403).

8. A double-headed spline connection device according to claim 7, characterized in that, The dual-mode adapter mechanism also includes a movable insert (406), a movable insert hole (407), a second observation hole (408), and a threaded engagement block (409). The movable insert (406) is rotatably connected to the inside of the adapter (401) via a rotating shaft (402). The movable insert hole (407) is embedded in one end of the movable insert (406). The second observation hole (408) is opened through the surface of the movable insert (406). The threaded engagement block (409) is fixedly connected to the inside of the movable insert (406).

9. A double-headed spline connection device according to claim 1, characterized in that, The telescopic prying mechanism also includes a limiting slide (502) and a threaded joint (503). The limiting slide (502) is fixedly connected to the inner wall of one end of the prying insert (501). The threaded joint (503) is integrally disposed at the end of the prying insert (501) away from the limiting slide (502). When the prying insert (501) is connected to the fixed insert (403), the surface of the threaded joint (503) is slidably connected to the inner wall of the fixed insert hole (404). When the prying insert (501) is connected to the moving insert (406), the surface of the threaded joint (503) is engaged with the surface of the threaded engagement block (409).

10. A double-headed spline connection device according to claim 9, characterized in that, The telescopic prying mechanism further includes a telescopic column (504), a gripping end (505), an anti-slip sleeve (506), and a damping plate (507). The telescopic column (504) is disposed inside the prying insert (501), and the surface of the telescopic column (504) is slidably connected to the inner wall of the limiting slide (502). The gripping end (505) is integrally disposed at one end of the telescopic column (504). The anti-slip sleeve (506) is fixedly sleeved on the surface of one end of the telescopic column (504), and the surface of the anti-slip sleeve (506) is slidably connected to the inner wall of the prying insert (501). The damping plate (507) is fixedly connected inside the anti-slip sleeve (506), and the surface of the damping plate (507) is slidably connected to the inner wall of the prying insert (501).

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