Long-life motor guide rod transmission structure

Abstract

The utility model discloses a long-life motor guide rod transmission structure which comprises a driving seat and two sets of outer sleeves, the top end of the driving seat is provided with two sets of outer sleeves, the outer sleeves are fixedly connected with the driving seat, inner sleeves are arranged in the outer sleeves, sliding grooves are symmetrically formed in the inner walls of the outer sleeves, and the sliding grooves are fixedly connected with the driving seat. And sliding blocks are symmetrically arranged on the outer walls of the inner sleeves, the sliding blocks are slidably connected with the sliding grooves, lead screws are arranged in the inner sleeves, the lead screws are movably connected with the driving seat, the surfaces of the lead screws are sleeved with threaded sleeves, the threaded sleeves are in threaded connection with the lead screws, and the threaded sleeves are fixedly connected with the inner sleeves. According to the utility model, not only can the object be conveniently and stably lifted and contacted by a plurality of groups of output ends and the contact position of the supporting arm and the object be adjusted in a linkage manner, so that the object can be conveniently lifted in a multi-point contact manner, but also the stability of lifting the object is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission structure technical field, concretely is a long life motor guide rod transmission structure. BACKGROUND

[0002] Motor guide rod refers to the mechanical component that converts the rotary motion of the motor into linear motion, namely electric push rod, and the electric push rod is a power drive device that converts the rotary motion of the motor into linear reciprocating motion of the push rod. It is widely used in mechanical equipment that needs to realize push-pull motion, such as household appliances, kitchen utensils, medical devices, automotive industry, etc. The electric push rod can realize remote control, centralized control or automatic control. The traditional motor guide rod transmission structure is connected to the object by a single output end. If the single-point contact lifts the object, the stability is poor. In order to improve the stability of the motor guide rod transmission structure for lifting the object, a long-life motor guide rod transmission structure is proposed.

[0003] As disclosed in the authorized announcement No. CN221058129U, a kind of electric push rod structure, including base cover, the bottom of base cover is fixedly connected with base shell;

[0004] Although it realizes that the device is pushed into the object below from below the barrier, the barrier passes through the middle position of the two push rod assemblies, and then the driving motor is started to drive the first gear to rotate. At this time, the first gear drives the second gear, the third gear and the fourth gear to rotate synchronously when rotating. The second gear and the fourth gear drive the threaded rods in the two push rod assemblies to rotate synchronously when rotating. When the threaded rod rotates, the threaded sleeve is in a lifting state, thereby playing a role of pushing the object upward on both sides of the bottom, and synchronously pushing. It solves the problem that two different electric push rods push the same object, which easily leads to imbalance of the object, even damage. It has high practicability in special cases.

[0005] However, it does not solve the problem that the existing transmission structure is not convenient for stable lifting of multiple output ends contacting the object and linkage adjustment of the contact position of the support arm and the object, which is not conducive to multi-point contact lifting of the object, and affects the stability of lifting the object. INVENTION CONTENTS

[0006] The utility model aims at providing a long-life motor guide rod transmission structure to solve the problem of inconvenient multi-group output end stable lifting of the transmission structure contacting the object and linkage adjustment of the contact position of the support arm and the object in the above background technology, which is not conducive to multi-point contact lifting of the object and affects the stability of lifting the object.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a long -life motor guide rod transmission structure, including drive seat and outer sleeve, the top of drive seat is provided with two groups of outer sleeve, and outer sleeve is fixedly connected with drive seat, the inside of outer sleeve all is provided with inner sleeve, and the inner wall of outer sleeve all is provided with the symmetrical sliding groove, the outer wall of inner sleeve all is provided with the symmetrical sliding block, and sliding block is connected with sliding groove slidingly, the inside of inner sleeve all is provided with the screw rod, and screw rod is movably connected with drive seat, the surface of screw rod all is equipped with the threaded bushing, and threaded bushing is connected with screw rod in screw thread, and threaded bushing is fixedly connected with inner sleeve.

[0008] Preferably, the surface of the screw rod inside the drive seat is provided with a driven gear, and the two groups of outer sleeves are provided with a driving motor.

[0009] Preferably, the output end of the driving motor is provided with a transmission gear, and the transmission gear is engaged with the two groups of driven gears.

[0010] Preferably, the top end of the inner sleeve is provided with a threaded rod, and the threaded rod is fixedly connected with the inner sleeve.

[0011] Preferably, the top end of the threaded rod is provided with a bearing seat, and the side wall of the bearing seat is provided with three groups of support arms at equal intervals, and the bottom end of the support arm is provided with a pin shaft, and the support arm is movably connected with the bearing seat through the pin shaft.

[0012] Preferably, the surface of the threaded rod is provided with a nut, and the nut is connected with the threaded rod in screw thread.

[0013] Preferably, the side wall of the nut is provided with a linkage arm, and the end of the linkage arm close to the nut is provided with a hinge shaft, and the linkage arm is movably connected with the nut through the hinge shaft.

[0014] Preferably, the end of the linkage arm close to the support arm is provided with a linkage shaft, and the linkage arm is movably connected with the support arm through the linkage shaft.

[0015] Compared with the prior art, the utility model has the beneficial effects that: the transmission structure not only realizes the stable lifting of the contact object of the multiple output ends and the linkage adjustment of the contact position of the support arm and the object, but also improves the stability of the lifting object;

[0016] (1) the driving motor drives the transmission gear to rotate, the transmission gear drives the driven gear to rotate, the driven gear drives the screw rod to rotate, the screw rod drives the inner sleeve to move upwards in the outer sleeve through the thread sleeve, the inner sleeve drives the threaded rod, the sliding groove and the support arm to move upwards, at this time the support arm is in a closed state, so that the support arm contacts the object and lifts the object, since the structure is designed in two groups, the situation that the single output end contacts the object and causes insufficient stability can be avoided, convenient multi-group output end stable lifting contact object is realized, and the stability of lifting the object is improved;

[0017] (2) if the area of the object to be lifted is larger, the nut can be rotated at this time, the nut moves on the surface of the threaded rod, the nut drives the linkage arm to rotate through the hinge shaft, the linkage arm drives the support arm to rotate around the pin shaft through the linkage shaft, so that the three groups of support arms spread out, so that the support arms contact different positions of the bottom surface of the object, to increase the contact points with the object, the more the contact points, the stronger the stability when lifting the object, then the object is lifted, convenient linkage adjustment of the contact position of the support arm and the object is realized, and multi-point contact lifting of the object is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a front view cross section structure schematic view of the utility model;

[0020] Figure 3 It is a three-dimensional perspective structure schematic view of the nut of the utility model;

[0021] Figure 4 It is a three-dimensional perspective structure schematic view of the driving seat of the utility model;

[0022] Figure 5 It is a three-dimensional perspective structure schematic view of the outer sleeve of the utility model;

[0023] Figure 6 It is a three-dimensional perspective structure schematic view of the inner sleeve of the utility model.

[0024] In the drawing: 1, driving seat; 2, outer sleeve; 3, driving motor; 4, support arm; 5, inner sleeve; 6, threaded rod; 7, linkage shaft; 8, linkage arm; 9, hinge shaft; 10, nut; 11, bearing seat; 12, driven gear; 13, transmission gear; 14, screw rod; 15, sliding block; 16, thread sleeve; 17, sliding groove; 18, pin shaft. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Please refer to Figures 1-6 The utility model provides an embodiment: a long -life motor guide rod transmission structure, including drive seat 1 and outer sleeve 2, drive seat 1's top end is provided with two groups of outer sleeve 2, and outer sleeve 2 is fixedly connected with drive seat 1, the inside of outer sleeve 2 all is provided with inner sleeve 5, and the inner wall of outer sleeve 2 all is provided with symmetrical slide groove 17, the outer wall of inner sleeve 5 all is provided with symmetrical sliding block 15, and sliding block 15 is slidably connected with slide groove 17, the inside of inner sleeve 5 all is provided with screw rod 14, and screw rod 14 is movably connected with drive seat 1, the surface of screw rod 14 all is provided with threaded sleeve 16, and threaded sleeve 16 is threadedly connected with screw rod 14, and threaded sleeve 16 is fixedly connected with inner sleeve 5;

[0027] open drive motor 3, drive motor 3 drives transmission gear 13 to rotate, under the intermeshing of transmission gear 13 and driven gear 12, driven gear 12 is driven to rotate by transmission gear 13, screw rod 14 is driven to rotate by driven gear 12, under the threaded connection of screw rod 14 and threaded sleeve 16, under the sliding fit of sliding block 15 and slide groove 17, inner sleeve 5 is driven to move upwards in outer sleeve 2 by screw rod 14 through threaded sleeve 16, threaded rod 6, slide groove 17 and support arm 4 are driven to move upwards by inner sleeve 5, at this moment, support arm 4 is in closed state, so that support arm 4 contacts the object and lifts the object, because the structure is designed as two groups, so it can avoid the situation that the stability is insufficient due to the contact between single group output end and object, realizes the convenient stable lifting contact of multiple group output ends to object, and improves the stability of lifting object;

[0028] The surface of screw rod 14 in drive seat 1 is provided with driven gear 12, and drive motor 3 is arranged between the two groups of outer sleeve 2, and drive motor 3 plays the role of power driving;

[0029] The output end of drive motor 3 is provided with transmission gear 13, and transmission gear 13 is intermeshed with two groups of driven gear 12;

[0030] The top end of inner sleeve 5 is provided with threaded rod 6, and threaded rod 6 is fixedly connected with inner sleeve 5, the top end of threaded rod 6 is provided with bearing seat 11, and the side wall of bearing seat 11 is provided with three groups of support arms 4 at equal intervals, the bottom end of support arm 4 is provided with pin shaft 18, and support arm 4 is movably connected with bearing seat 11 through pin shaft 18;

[0031] The surface of the threaded rod 6 is provided with a nut 10, and the nut 10 is threadedly connected with the threaded rod 6, the side wall of the nut 10 is provided with a linkage arm 8, one end of the linkage arm 8 close to the nut 10 is provided with a hinge shaft 9, and the linkage arm 8 is movably connected with the nut 10 through the hinge shaft 9;

[0032] One end of the linkage arm 8 close to the support arm 4 is provided with a linkage shaft 7, and the linkage arm 8 is movably connected with the support arm 4 through the linkage shaft 7;

[0033] If the area of the object to be lifted is large, the nut 10 can be rotated at this time, the nut 10 moves on the surface of the threaded rod 6, the linkage arm 8 is rotated by the nut 10 through the hinge shaft 9, the support arm 4 is rotated by the linkage arm 8 through the linkage shaft 7 with the pin shaft 18 as the axis, the support arm 4 is supported by the bearing seat 11, so that the three groups of support arms 4 are spread out, so that the support arm 4 contacts different positions on the bottom surface of the object, thereby increasing the contact points with the object, the more the contact points, the stronger the stability when lifting the object, and then the object is lifted, the contact position of the linkage adjustment support arm and the object is realized, and the multi-point contact lifting of the object is facilitated.

[0034] Working principle: turn on the driving motor 3, the driving motor 3 drives the transmission gear 13 to rotate, the transmission gear 13 drives the driven gear 12 to rotate, the driven gear 12 drives the lead screw 14 to rotate, under the sliding cooperation of the sliding block 15 and the sliding groove 17, the inner sleeve 5 is moved upward in the outer sleeve 2 by the lead screw 14 through the threaded sleeve 16, the threaded rod 6, the sliding groove 17 and the support arm 4 are moved upward by the inner sleeve 5, at this time the support arm 4 is in a closed state, so that the support arm 4 contacts the object and lifts the object, because the structure is designed as two groups, so the situation that the single group output end contacts the object and causes insufficient stability can be well avoided, if the area of the object to be lifted is large, the nut 10 can be rotated at this time, the nut 10 moves on the surface of the threaded rod 6, the linkage arm 8 is rotated by the nut 10 through the hinge shaft 9, the support arm 4 is rotated by the linkage arm 8 through the linkage shaft 7 with the pin shaft 18 as the axis, the support arm 4 is supported by the bearing seat 11, so that the three groups of support arms 4 are spread out, so that the support arm 4 contacts different positions on the bottom surface of the object, thereby increasing the contact points with the object, the more the contact points, the stronger the stability when lifting the object, and then the object is lifted, the above is the whole use of the long-life motor guide rod transmission structure.

Claims

1. A long-life motor guide rod drive structure comprising a drive base (1) and an outer sleeve (2), characterized in that: The top of the driving base (1) is provided with two groups of outer sleeves (2), and the outer sleeves (2) are fixedly connected with the driving base (1), the inner sleeves (5) are arranged in the outer sleeves (2), the inner walls of the outer sleeves (2) are symmetrically provided with sliding grooves (17), the outer walls of the inner sleeves (5) are symmetrically provided with sliding blocks (15), the sliding blocks (15) and the sliding grooves (17) are slidably connected, the inner sleeves (5) are provided with lead screws (14), the lead screws (14) and the driving base (1) are movably connected, the surfaces of the lead screws (14) are provided with threaded sleeves (16), the threaded sleeves (16) and the lead screws (14) are threadedly connected, and the threaded sleeves (16) and the inner sleeves (5) are fixedly connected.

2. A long-life motor guide rod drive structure according to claim 1, characterized in that: The surfaces of the lead screws (14) in the driving base (1) are provided with driven gears (12), and the driving motor (3) is arranged between the two groups of outer sleeves (2).

3. A long-life motor guide rod drive structure according to claim 2, characterized in that: The output end of the driving motor (3) is provided with a transmission gear (13), and the transmission gear (13) is meshed with the two groups of driven gears (12).

4. The long-life motor leader drive structure of claim 1, wherein: The top of the inner sleeve (5) is provided with a threaded rod (6), and the threaded rod (6) and the inner sleeve (5) are fixedly connected.

5. A long-life motor guide rod drive structure according to claim 4, characterized in that: The top of the threaded rod (6) is provided with a bearing seat (11), the side wall of the bearing seat (11) is provided with three groups of support arms (4) at equal intervals, the bottom of the support arm (4) is provided with a pin shaft (18), and the support arm (4) and the bearing seat (11) are movably connected through the pin shaft (18).

6. A long-life motor guide rod drive structure according to claim 4, characterized in that: The surface of the threaded rod (6) is provided with a nut (10), and the nut (10) and the threaded rod (6) are threadedly connected.

7. A long-life motor guide rod drive structure according to claim 6, characterized in that: The side wall of the nut (10) is provided with a linkage arm (8), one end of the linkage arm (8) close to the nut (10) is provided with a hinged shaft (9), and the linkage arm (8) and the nut (10) are movably connected through the hinged shaft (9).

8. A long-life motor guide rod drive structure according to claim 7, characterized in that: One end of the linkage arm (8) close to the support arm (4) is provided with a linkage shaft (7), and the linkage arm (8) and the support arm (4) are movably connected through the linkage shaft (7).

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