Telescopic cylinder joint structure

Abstract

A telescopic cylinder joint structure includes a telescopic unit, an extension unit, and a first fixing unit. The telescopic unit includes a first body, a first combination structure, and at least one first fixing structure. The extension unit includes a second body, a second combination structure, and at least one second fixing structure. The first combination structure and the second combination structure are screwed to each other. The first fixing unit includes at least one first fixing body. The first fixing body is arranged in the first fixing structure and the second fixing structure and interferes with the first body and the second body to avoid the first combination structure and the second combination structure from screwing.

Description

Technical Field

[0001] This invention relates to a telescopic cylinder connector structure, and more particularly to a connector structure for strengthening the structural strength of a telescopic cylinder. Background Technology

[0002] Telescopic cylinders are commonly used telescopic action components in mechanical structures. They can be classified into different types according to their power source, such as pneumatic cylinders, hydraulic cylinders, or electric cylinders.

[0003] Please see Figure 1 The present invention relates to a motion sensing device 1, which includes a base 11, a motion platform 12, and a plurality of telescopic cylinders 13 disposed between the base 11 and the motion platform 12. A universal structure 14 is provided between the plurality of telescopic cylinders 13 and the motion platform 12 to enable the motion platform 12 to move at various angles. The top of the plurality of telescopic cylinders 13 is a Y-shaped connector structure, which is a special connector and is not provided by the manufacturer. Therefore, the top of the plurality of telescopic cylinders 13 is provided with a connecting part 15 so that a suitable connector structure can be installed according to the actual situation after obtaining the telescopic cylinders 13.

[0004] Please see Figure 2 This describes a telescopic cylinder 2, which includes a housing 21, a motor 22 connected to the housing 21, a screw 23 disposed in the housing 21 and connected to the motor 22, a spiral sleeve 24 disposed on the screw 23, a telescopic rod 25 connected to the spiral sleeve 24, and a Y-shaped connector 26 disposed at one end of the telescopic rod 25. The telescopic rod 25 is a hollow rod body used to accommodate the screw 23. The motor 22 of the telescopic cylinder 2 can drive the screw. 23 rotates and drives the spiral sleeve 24 to move, so that the spiral sleeve 24 can slide inside the housing 21 and drive the telescopic rod 25 to telescopically move relative to the housing 21, thereby controlling the Y-shaped connector 26 to generate linear mechanical movement. A fastening ring 27 is provided between the Y-shaped connector 26 and the telescopic rod 25. The fastening ring 27 can further tighten the screwed state of the Y-shaped connector 26 to prevent the Y-shaped connector 26 from falling off the telescopic rod 25.

[0005] Although the prior art discloses a joint assembly technique for telescopic cylinders to provide a suitable joint structure for configuration, it still has the following disadvantages in practical use:

[0006] 1. The connector has become loose:

[0007] In early threaded structures formed by internal and external threads, the aforementioned fastening ring was mostly used as a clamping structure to tighten the engagement of the internal and external threads and prevent the joint from falling off. However, the motion platform used in motion sensing devices generates a strong rotational force when performing various motion sensing movements. In addition, the load on the motion platform makes it impossible for ordinary fastening rings to resist, resulting in the joint becoming loose.

[0008] II. The internal structure of the telescopic cylinder has become loose:

[0009] As mentioned above, when the motion platform of the somatosensory device performs various somatosensory movements, the power generated by the motion platform will also be transmitted to the spiral sleeve through the telescopic rod, causing the combined structure between the telescopic rod and the spiral sleeve to be loosened by external force.

[0010] Third, the internal structure of the telescopic cylinder is not easy to modify:

[0011] Since the internal space of the telescopic cylinder is fixed, it is not easy to strengthen the telescopic rod, the spiral sleeve, and the combined structure by adding fastening structures. Therefore, maintenance personnel must conduct regular inspections, disassemble the telescopic cylinder to check the internal structure and tighten it to ensure the structural safety of the rod assembly. Summary of the Invention

[0012] In view of this, the purpose of the present invention is to provide a telescopic cylinder joint structure that can strengthen the structural strength of the telescopic cylinder to support the force of the somatosensory device during operation and ensure the safety of the rider.

[0013] The telescopic cylinder joint structure includes a telescopic unit, an extension unit, and a first fixing unit.

[0014] The telescopic unit includes a first main body, a first assembly structure connected to the first main body, and at least one first fixing structure disposed on the first main body.

[0015] The extension unit includes a second main body, a second assembly structure connected to the second main body, and at least one second fixing structure disposed on the second main body, wherein the first assembly structure and the second assembly structure are screwed together.

[0016] The first fixing unit includes at least one first fixing body, which is simultaneously disposed in the first fixing structure and the second fixing structure and interferes with the first main body and the second main body to avoid the first combined structure and the second combined structure from generating spiral motion.

[0017] Another technical aspect of the present invention is that the first fixing structure described above has a first groove disposed in the first body and a first fixing opening disposed in the first body and connected to the first groove, and the second fixing structure has a second groove disposed in the second body and a second fixing opening disposed in the second body and connected to the second groove. The first fixing opening and the second fixing opening are disposed opposite to each other, so that the first fixing body is simultaneously disposed in the first groove and the second groove through the first fixing opening and the second fixing opening.

[0018] Another technical aspect of the present invention is that the first fixing structure further includes a first placement opening disposed on the first body and connected to the first groove, and the second fixing structure further includes a second placement opening disposed on the second body and connected to the second groove. The first placement opening is connected to the first fixing opening, and the second placement opening is connected to the second fixing opening, so that the first fixing body can enter and exit the first groove and the second groove through the first placement opening and the second placement opening.

[0019] Another technical aspect of the present invention is that the first combined structure is an internal thread provided on the first body, the first fixing structure is an external thread provided on the first body, the thread direction of the first combined structure is opposite to the thread direction of the first fixing structure, and the first fixing body is screwed onto the first fixing structure.

[0020] Another technical means of the present invention is that the first fixing body has a first fixing member screwed into the first fixing structure, and at least one first positioning member simultaneously fixed to the first fixing member and the second fixing structure.

[0021] Another technical aspect of the present invention is that the telescopic cylinder joint structure further includes a movable unit and a second fixed unit. The telescopic unit further includes a first clamping structure disposed on the first main body. The movable unit includes a third main body and at least one extended clamping structure disposed on the third main body. The second fixed unit includes a second fixing body disposed between the first clamping structure and the extended clamping structure. The first clamping structure is disposed at one end of the first main body.

[0022] Another technical aspect of the present invention is that the second fixing body has a ring-shaped structure and has an inner ring portion and an outer ring portion disposed opposite to each other, the first clamping structure is fixed to the inner ring portion, and the extended clamping structure is fixed to the outer ring portion.

[0023] Another technical aspect of the present invention is that the telescopic cylinder joint structure further includes a movable unit and a second fixed unit. The telescopic unit further includes a first clamping structure disposed on the first main body. The movable unit includes a third main body and at least one extended clamping structure disposed on the third main body. The second fixed unit includes a second fixing body disposed between the first clamping structure and the extended clamping structure. The first clamping structure is an annular groove disposed on the side of the first main body.

[0024] Another technical aspect of the present invention is that the second fixing body has at least one second fixing member disposed on the outside of the first main body, and at least one locking block disposed on the inside of the second fixing member, the locking block being fixed in the first clamping structure.

[0025] Another technical aspect of the present invention is that the second fixing unit further includes at least one buffer member fixed on the second fixing body to avoid at least one impact between the second fixing body and the interior of a housing of a telescopic cylinder, and the second fixing body is provided with a plurality of perforations.

[0026] The beneficial effects of the present invention are that the first fixing body can fix the screwed positions of the first body and the second body, and provide rotational support force for the first body and the second body to resist external rotational forces and prevent the second fixing structure from detaching from the first fixing structure. Attached Figure Description

[0027] Figure 1 It is a three-dimensional schematic diagram illustrating a motion-sensing device;

[0028] Figure 2 This is a cross-sectional structural diagram illustrating the basic structure of a telescopic cylinder;

[0029] Figure 3 This is a partial side view schematic diagram, which is a first preferred embodiment of a telescopic cylinder joint structure of the present invention, illustrating the combined side view state of a telescopic unit, an extension unit, and a first fixing unit.

[0030] Figure 4 It is a three-dimensional schematic diagram illustrating the exploded three-dimensional structure of the telescopic unit, the extension unit, and the first fixing unit in the first preferred embodiment;

[0031] Figure 5 It is a partial cross-sectional schematic diagram illustrating the cross-sectional appearance of a first fixing structure, a second fixing structure, and a first fixing body in the first preferred embodiment;

[0032] Figure 6This is a partial side view schematic diagram, which is a second preferred embodiment of a telescopic cylinder joint structure of the present invention, illustrating the combined side view state of a telescopic unit, an extension unit, and a first fixing unit.

[0033] Figure 7 It is a three-dimensional schematic diagram illustrating the exploded three-dimensional structure of the telescopic unit, the extension unit, and the first fixing unit in the second preferred embodiment;

[0034] Figure 8 This is a partial side view schematic diagram, which is a third preferred embodiment of the telescopic cylinder joint structure of the present invention, illustrating the combined side view state of a telescopic unit, a movable unit and a second fixed unit;

[0035] Figure 9 It is a three-dimensional schematic diagram illustrating the exploded three-dimensional structure of the telescopic unit, the movable unit, and the second fixed unit in the third preferred embodiment;

[0036] Figure 10 This is a partial side view schematic diagram, which is a fourth preferred embodiment of the telescopic cylinder joint structure of the present invention, illustrating the combined side view state of a telescopic unit, a movable unit and a second fixed unit;

[0037] Figure 11 It is a three-dimensional schematic diagram illustrating the exploded three-dimensional structure of the telescopic unit, the movable unit, and the second fixed unit in the fourth preferred embodiment.

[0038] Explanation of icon numbers:

[0039] 1. Motion sensing device; 11. Base; 12. Motion platform; 13. Telescopic cylinder; 14. Universal structure; 15. Connecting part; 2. Telescopic cylinder; 21. Housing; 22. Motor; 23. Screw; 24. Helical sleeve; 25. Telescopic rod; 26. Y-shaped connector; 27. Fastening ring; 3. Telescopic unit; 31. First main body; 32. First combined structure; 33. First fixing structure; 331. First groove; 332. First fixing opening; 333. First placement opening; 334. Screw hole; 335. Screw; 34. First clamping structure; 4. Extension unit; 41. Second main body; 42. Second combined structure; 43. Second fixing structure; 431. 432 Second fixed opening; 433 Second placement opening; 5 First fixed unit; 51 First fixed body; 511 Through hole; 512 First fixing member; 513 First positioning member; 52 Stop screw; 6 Movable unit; 61 Third main body; 611 Sleeve part; 612 Cover part; 62 Extended clamping structure; 7 Second fixed unit; 71 Second fixed body; 711 Inner ring part; 712 Outer ring part; 713 First through hole; 714 Second through hole; 715 Third through hole; 716 Second fixing member; 717 Locking block; 718 Fourth through hole; 719 Fifth through hole; 72 Buffer. Detailed Implementation

[0040] The relevant patent features and technical content of this invention will be clearly presented in the following detailed description of four preferred embodiments with reference to the accompanying drawings. It should be noted before the detailed description that similar elements are represented by the same reference numerals.

[0041] See Figure 3 ,and Figure 4 This is a first preferred embodiment of a telescopic cylinder connector structure according to the present invention. The telescopic cylinder connector structure includes a telescopic unit 3, an extension unit 4, and a first fixing unit 5, wherein the telescopic unit 3 is the telescopic rod of the telescopic cylinder (see [link to previous document]). Figure 2 The telescopic cylinder 2 shown has a telescopic rod 25. The extension unit 4 is a connector located at the top end of the telescopic unit 3. The extension unit 4 can be used to connect other objects.

[0042] The telescopic unit 3 includes a first main body 31, a first assembly structure 32 connected to the first main body 31, and a plurality of first fixing structures 33 disposed on the first main body 31. The first main body 31 is a hollow elongated cylinder, wherein, is indicated in Figure 3 and Figure 4 The first main body 31 is the top of the first main body 31, and the first combined structure 32 is an internal thread provided on the top of the first main body 31.

[0043] The extension unit 4 includes a second main body 41, a second assembly structure 42 connected to the second main body 41, and a plurality of second fixing structures 43 disposed on the second main body 41. The first assembly structure 32 and the second assembly structure 42 are screwed together. The second main body 41 is a long cylindrical body. The second assembly structure 42 is an external thread disposed at the bottom of the second main body 41 and disposed at the bottom of the second main body 41. The second assembly structure 42 can be screwed into the first assembly structure 32 so that the second main body 41 is disposed at the top of the first main body 31, and the structure of the second main body 41 can be selected according to the actual use.

[0044] The first fixing unit 5 includes at least one first fixing body 51, which is simultaneously disposed in the first fixing structure 33 and the second fixing structure 43 and interferes with the first body 31 and the second body 41 to prevent the first combined structure 32 and the second combined structure 42 from falling off due to spiral movement. In addition, the first fixing unit 5 may include a locking screw 52 passing through the first body 31 to directly lock the first combined structure 32 disposed on the first body 31 and the second combined structure 42 disposed on the second body 41. In actual implementation, the locking screw 52 may not be used and should not be limited thereto.

[0045] See also Figure 5 In the first preferred embodiment, each first fixing structure 33 has a first groove 331 disposed on the first body 31 and a first fixing opening 332 disposed on the first body 31 and connected to the first groove 331. Each second fixing structure 43 has a second groove 431 disposed on the second body 41 and a second fixing opening 432 disposed on the second body 41 and connected to the second groove 431. The first fixing opening 332 faces the extension unit 4, and the second fixing opening 432 faces the telescopic unit 3. Therefore, the first fixing opening 332 and the second fixing opening 432 are arranged opposite to each other so that the first fixing body 51 By simultaneously providing the first fixing opening 332 and the second fixing opening 432 within the first groove 331 and the second groove 431, and by ensuring that the width of the first fixing body 51 is tightly fitted with the width of the first groove 331 and the width of the second groove 431, when the first fixing body 51 is simultaneously provided within the first groove 331 and the second groove 431, both sides of the first fixing body 51 can abut against the first body 31 or the second body 41, thereby creating structural interference to fix the relative positions of the first body 31 and the second body 41, further preventing the first combined structure 32 and the second combined structure 42 from spiraling and loosening.

[0046] In addition, the first fixing structure 33 further has a first placement opening 333 disposed on the first body 31 and connected to the first groove 331, and the second fixing structure 43 further has a second placement opening 433 disposed on the second body 41 and connected to the second groove 431. The first placement opening 333 is located on the side of the first body 31, the second placement opening 433 is located on the side of the second body 41, and the first placement opening 333 is connected to the first fixing opening 332, and the second placement opening 433 is connected to the second fixing opening 432, so that the first fixing body 51 can enter and exit the first groove 331 and the second groove 431 through the first placement opening 333 and the second placement opening 433.

[0047] Preferably, the first fixing structure 33 is provided with a screw hole 334, and the first fixing body 51 is provided with a through hole 511. When the first fixing body 51 is disposed in the first groove 331 and the second groove 431, the through hole 511 and the screw hole 334 can provide a screw 335 to secure the first fixing body 51 in the first groove 331 and the second groove 431. In actual implementation, other fixing structures can be used in the first fixing structure 33, or the fixing structure can be disposed in the second fixing structure 43, or both the first fixing structure 33 and the second fixing structure 43 can be provided with fixing structures, and should not be limited thereto.

[0048] Please see Figure 6 ,and Figure 7 This is a second preferred embodiment of a telescopic cylinder connector structure of the present invention. This second preferred embodiment is largely the same as the first preferred embodiment, and the similarities will not be detailed here. The difference lies in that the first assembly structure 32 is an internal thread provided in the first body 31, used to provide the second assembly structure 42 screwed into the bottom of the second body 41, while the first fixing structure 33 is an external thread provided in the first body 31. The thread direction of the first assembly structure 32 is opposite to the thread direction of the first fixing structure 33. For example, the second assembly structure 42 is screwed into the first assembly structure 32 in a clockwise direction, and the first fixing body 51 is screwed into the first fixing structure 33 in a counterclockwise direction. The first fixing body 51 screwed into the first fixing structure 33 is then fixed together with the second fixing structure 43. (The last sentence appears to be incomplete and possibly refers to a different embodiment.) Figure 6 and Figure 7 The position and function of the telescopic unit 3 shown are as the telescopic rod of the telescopic cylinder (see [reference]). Figure 2 The telescopic rod 25 of the telescopic cylinder 2 shown.

[0049] In the second preferred embodiment, the first fixing body 51 has a first fixing member 512 screwed onto the first fixing structure 33, and a plurality of first positioning members 513 simultaneously fixed onto the first fixing member 512 and the second fixing structure 43. The first fixing member 512 is an annular structure and has threads on its inner side so that it can be screwed onto the first fixing structure 33. The plurality of first positioning members 513 are crescent-shaped structures and have protrusions on their tops. The crescent-shaped structure of the first positioning member 513 is locked onto the first fixing member 512, and the protrusions of the first positioning member 513 are locked onto the second fixing structure 43. In actual implementation, the first positioning members 513 can have other structural shapes or other quantities, and should not be limited thereto.

[0050] It is worth mentioning that, since the thread direction of the first combined structure 32 located inside the first main body 31 is opposite to the thread direction of the first fixing structure 33 located outside the first main body 31, and the second main body 41 is screwed together with the first combined structure 32 by the second fixing structure 43, and the second main body 41 is screwed together with the first fixing structure 33 by the first fixing body 51, when the second main body 41 is subjected to a helical force, the first combined structure 32 and the first fixing structure 33 with opposite threads will cause the second fixing structure 43 and the first fixing body 51 to helically restrain each other and prevent the structure from rotating and loosening, thereby preventing the extension unit 4 from falling off the telescopic unit 3.

[0051] Please see Figure 8 ,and Figure 9 This is a third preferred embodiment of the telescopic cylinder joint structure of the present invention. The third preferred embodiment is largely the same as the first preferred embodiment, and the similarities will not be described in detail here. The difference is that the telescopic cylinder joint structure further includes a movable unit 6 and a second fixed unit 7.

[0052] The extension unit 4 is located at the top of the telescopic unit 3 (e.g., Figure 2 The Y-shaped connector 27 is located at the top of the telescopic rod 25, and the movable unit 6 is located at the bottom of the telescopic unit 3 (e.g., the Y-shaped connector 27 is located at the top of the telescopic rod 25). Figure 2 The telescopic unit 3 is a hollow cylinder that houses the screw rod of the telescopic cylinder (e.g., a spiral sleeve 24 located at the bottom of the telescopic rod 25). Figure 2 The screw 23 in the middle, the movable unit 6 is a spiral sleeve sleeved on the screw, and the movable unit 6 can be driven to move when the screw rotates.

[0053] The telescopic unit 3 further includes a first clamping structure 34 disposed on the first main body 31, and the movable unit 6 includes a third main body 61 and an extension clamping structure 62 disposed on the third main body 61, wherein, indicated in Figure 8 and Figure 9 The structure consists of the bottom of the first main body 31 and the top of the third main body 61. The second fixing unit 7 includes a second fixing body 71 disposed between the first clamping structure 34 and the extended clamping structure 62. The first clamping structure 34 is a screw hole disposed at the bottom end of the first main body 31, and the extended clamping structure 62 is a screw hole disposed at the top end of the third main body 61. In actual implementation, the first clamping structure 34 and the extended clamping structure 62 can use other fixing techniques, and should not be limited thereto.

[0054] In the third preferred embodiment, the third body 61 has a sleeve portion 611 and a cover portion 612 disposed on the sleeve portion 611 to form part of a ball or roller screw. Ball or roller screws are generally used in telescopic cylinders. Multiple balls and lubricating oil are disposed between the third body 61 and the screw to enhance the sliding state of the third body 61 on the screw. The cover portion 612 can seal the multiple balls inside the sleeve portion 611. Since ball or roller screws are common structures and are not the focus of this invention, they will not be described in detail here. In actual implementation, the third body 61 can be an integral structure without the need to separately provide the cover portion 612. It should not be limited to the example of this preferred embodiment.

[0055] The second fixing unit 7 further includes a plurality of buffer members 72 fixed on the second fixing body 71. The second fixing body 71 has an annular structure and has an inner ring portion 711 and an outer ring portion 712 disposed opposite to each other. The first clamping structure 34 is fixed on the upper surface of the inner ring portion 711, and the extended clamping structure 62 is fixed on the lower surface of the outer ring portion 712. In the third preferred embodiment, the inner ring portion 711 is provided with a plurality of first through holes 713, which can provide screws to be inserted from below to fix the inner ring portion 711 of the second fixing body 71 to the first clamping structure 34 of the first body 31. The outer ring portion 712 is provided with a plurality of second through holes 714 and a plurality of third through holes 715, which can provide screws to be inserted from below. A wire is threaded through from above to secure the second fixing body 71 to the extension clamping structure 62 of the third body 61. The plurality of buffer members 72 can be locked onto the plurality of second through holes 714 of the outer ring portion 712 using a plurality of screws. The plurality of buffer members 72 are crescent-shaped sheet structures used to cover the screws passing through the third through hole 715. Therefore, when the second fixing body 71 is installed, the screws in the first through hole 713 will be blocked by the third body 61, and the screws in the third through hole 715 will be blocked by the buffer members 72. Even if the screws locked to the first body 31 and the third body 61 become loose due to external force, the screws will be blocked and will not fall off, effectively improving the structural safety of the telescopic cylinder.

[0056] Please refer to the following: Figure 2 , Figure 8 and Figure 9 In the third preferred embodiment, when the spiral sleeve 24 slides inside the housing 21 and drives the telescopic rod 25 to extend and retract relative to the housing 21, the buffer 72 can be used to prevent various impact events from occurring between the inside of the housing 21 of the telescopic cylinder 2 and the second fixed body 71, thereby extending the service life of the telescopic cylinder 2.

[0057] It is worth mentioning that, since the first main body 31 and the third main body 61 are disposed in the housing of the telescopic cylinder (e.g., Figure 2 The interior of the housing 21) is limited by the space available for the reinforcement design of the connection structure between the first main body 31 and the third main body 61. Therefore, the first clamping structure 34 has multiple screw holes on the bottom surface of the first main body 31, which can be used to lock the screw from below. The extension clamping structure 62 has multiple screw holes on the top surface of the third main body 61, which can be used to lock the screw from above. In addition, the multiple longitudinally penetrating first through holes 713, second through holes 714 and third through holes 715 in the second fixing body 71 can not only strengthen the structural strength between the first main body 31 and the third main body 61, but also prevent the screw or other structures from expanding laterally, which is beneficial to improve the structural strength in a limited space.

[0058] Please see Figure 10 ,and Figure 11 This is a fourth preferred embodiment of the telescopic cylinder connector structure of the present invention. The fourth preferred embodiment is largely the same as the third preferred embodiment, and the similarities will not be described in detail here. The difference is that the bottom end of the first body 31 has a protruding post with external threads, the top end of the third body 61 has a groove with internal threads, the bottom end of the first body 31 can be screwed onto the top end of the third body 61, the first clamping structure 34 is an annular groove provided on the side of the first body 31, and the second fixing body 71 has a plurality of second fixing members 716 provided on the outside of the first body 31, and a plurality of locking blocks 717 respectively provided on the inner side of the plurality of second fixing members 716.

[0059] Preferably, the plurality of locking blocks 717 form an annular protrusion on the inner side of the second fixing member 716. The plurality of locking blocks 717 can be fixed in the first clamping structure 34 of the annular groove. The first clamping structure 34 tightly engages with the plurality of locking blocks 717 to interfere with the longitudinal movement of the first body 31 and the third body 61.

[0060] Since the first body 31 must be detached from the third body 61 in a spiral manner, after the first body 31 is screwed onto the top of the third body 61, multiple locking blocks 717 of the second fixing body 71 can be locked in the annular protrusion groove, and the second fixing member 716 of the second fixing body 71 can be locked in the extension clamping structure 62. The multiple locking blocks 717 locked in the annular groove can prevent the first body 31 from spiraling away from the third body 61, making the operation of the telescopic cylinder safer.

[0061] Preferably, the second fixing member 716 of the second fixing body 71 is provided with a plurality of fourth through holes 718 and a plurality of fifth through holes 719. The plurality of fourth through holes 718 can provide screws for locking into the extension clamping structure 62. When the second fixing body 71 is locked into the extension clamping structure 62, the plurality of buffer members 72 can be locked into the plurality of fifth through holes 719 by a plurality of screws. The plurality of buffer members 72 are crescent-shaped plate bodies used to cover the fourth through holes 718, which can prevent the screws set in the fourth through holes 718 from falling outward, so that the second fixing body 71 can be firmly fixed to the third body 61, which can improve the structural strength of the telescopic cylinder.

[0062] It is worth mentioning that although the second fixing unit 7 is located between the telescopic unit 3 and the movable unit 6, in actual implementation, the second fixing unit 7 can also replace the first fixing unit 5 and be located between the telescopic unit 3 and the extension unit, and should not be limited thereto.

[0063] As can be seen from the above description, the telescopic cylinder joint structure of the present invention does indeed have the following effects:

[0064] 1. The outer joint structure of the telescopic cylinder is stable:

[0065] The first fixing unit 5 of the telescopic cylinder can be replaced with a suitable extension unit 4 to match different device structures. The first fixing unit 5 can interfere with the screw structure between the telescopic unit 3 and the extension unit 4, effectively stabilizing the joint structure on the outside of the telescopic cylinder and preventing the telescopic cylinder from unscrewing and falling off when subjected to strong external force.

[0066] II. Improve the internal structural strength of the telescopic cylinder:

[0067] The second fixing unit 7 can strengthen the combined structure between the telescopic unit 3 and the movable unit 6, and support the force transmitted by the extension unit 4 to prevent the telescopic unit 3 from falling off the movable unit 6. In addition, the buffer 72 of the second fixing unit 7 can block the through hole on the second fixing body 71, which can prevent the screw set in the through hole from falling off, and can also prevent the second fixing body 71 from becoming loose, effectively improving the internal structural strength of the telescopic cylinder.

[0068] III. Effective use of the internal space of the telescopic cylinder:

[0069] Since the internal space of the telescopic cylinder is limited, the first clamping structure 34 is either a screw hole at the bottom of the first main body 31 or an annular groove on the side of the first main body 31, so as to provide the second fixing unit 7 to strengthen the internal structural strength of the telescopic cylinder, and at the same time effectively utilize the internal space of the telescopic cylinder to avoid the lateral expansion of the structure.

[0070] In summary, the first fixing unit 5 can stabilize the combined structure between the telescopic unit 3 and the extension unit 4, preventing the extension unit 4 from unscrewing and falling off the telescopic unit 3 when the telescopic cylinder is subjected to strong external force. The second fixing unit 7 can stabilize the combined structure between the telescopic unit 3 and the movable unit 6, preventing the telescopic unit 3 from falling off the movable unit 6. Therefore, the purpose of this invention can indeed be achieved.

[0071] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A telescopic cylinder connector structure, characterized in that, Include: A telescopic unit includes a first main body, a first assembly structure connected to the first main body, and at least one first fixing structure disposed on the first main body; An extension unit includes a second main body, a second assembly structure connected to the second main body, and at least one second fixing structure disposed on the second main body, wherein the first assembly structure and the second assembly structure are screwed together; and A first fixing unit includes at least one first fixing body, which is simultaneously disposed in the first fixing structure and the second fixing structure and interferes with the first main body and the second main body to avoid the first combined structure and the second combined structure from generating spiral motion; The first combined structure is an internal thread provided on the first main body, the first fixing structure is an external thread provided on the first main body, the thread direction of the first combined structure is opposite to the thread direction of the first fixing structure, and the first fixing body is screwed onto the first fixing structure; the first fixing body has a first fixing member screwed onto the first fixing structure, and at least one first positioning member simultaneously fixed onto the first fixing member and the second fixing structure.

2. The telescopic cylinder joint structure as described in claim 1, characterized in that, The first fixing structure has a first groove disposed in the first body and a first fixing opening disposed in the first body and connected to the first groove. The second fixing structure has a second groove disposed in the second body and a second fixing opening disposed in the second body and connected to the second groove. The first fixing opening and the second fixing opening are disposed opposite to each other, so that the first fixing body is simultaneously disposed in the first groove and the second groove through the first fixing opening and the second fixing opening.

3. The telescopic cylinder joint structure as described in claim 2, characterized in that, The first fixing structure further includes a first placement opening disposed on the first body and connected to the first groove, and the second fixing structure further includes a second placement opening disposed on the second body and connected to the second groove. The first placement opening is connected to the first fixing opening, and the second placement opening is connected to the second fixing opening, so that the first fixing body can enter and exit the first groove and the second groove through the first placement opening and the second placement opening.

4. The telescopic cylinder joint structure as described in claim 1, characterized in that, It further includes a movable unit and a second fixed unit. The telescopic unit further includes a first clamping structure disposed on the first main body. The movable unit includes a third main body and an extension clamping structure disposed on the third main body. The second fixed unit includes a second fixing body disposed between the first clamping structure and the extension clamping structure. The first clamping structure is disposed at one end of the first main body.

5. The telescopic cylinder joint structure as described in claim 4, characterized in that, The second fixing body has a ring-shaped structure and has an inner ring portion and an outer ring portion arranged opposite to each other. The first clamping structure is fixed to the inner ring portion, and the extended clamping structure is fixed to the outer ring portion.

6. The telescopic cylinder joint structure as described in claim 1, characterized in that, It further includes a movable unit and a second fixed unit. The telescopic unit further includes a first clamping structure disposed on the first body. The movable unit includes a third body and at least one extended clamping structure disposed on the third body. The second fixed unit includes a second fixing body disposed between the first clamping structure and the extended clamping structure. The first clamping structure is an annular groove disposed on the side of the first body.

7. The telescopic cylinder joint structure as described in claim 6, characterized in that, The second fixing body has at least one second fixing member disposed on the outside of the first body, and at least one locking block disposed on the inside of the second fixing member, the locking block being fixed in the first clamping structure.

8. The telescopic cylinder joint structure as described in claim 4 or 6, characterized in that, The second fixing unit further includes at least one buffer member fixed on the second fixing body to prevent at least one impact between the second fixing body and the interior of a housing of a telescopic cylinder, and the second fixing body is provided with multiple perforations.

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