Butt joint structure of motor box and transmission box

Abstract

The utility model relates to the technical field of electric curtains, in particular to a butt joint structure of a motor box and a transmission box. Comprising a sleeve part and an output rotating part, the central axis of the sleeve part coincides with the central axis of the output rotating part, the sleeve part and the output rotating part are connected in a circumferential limiting mode, the output rotating part is connected to the sleeve part in a sliding mode in the axial direction of the output rotating part, a compression elastic part is connected between the sleeve part and the output rotating part in an abutting mode, and a transmission shaft is in transmission connection with the output rotating part. When the transmission shaft is in butt joint with the output rotating piece, the motor box is in direct butt joint with the transmission box, then the driving source is started, and due to circumferential limiting limitation between the sleeve piece and the output rotating piece, when the driving source drives the sleeve piece to rotate, the output rotating piece can rotate together. When the output rotating piece rotates to the position aligned with the transmission shaft, the output rotating piece can slide in the direction of the transmission shaft in the axial direction of the sleeve piece under the action of the compression elastic piece, so that the transmission shaft and the output rotating piece are automatically aligned, and installation personnel do not need to align the limiting ribs and the rib clamping grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of electric curtains, in particular to a docking structure of a motor box and a transmission box. Background Art

[0002] Electric curtains generally include motors, curtain rails, belts and pulleys. The motor provides power to drive the belts and pulleys to move on the rails, and the pulleys drive the curtains to move, thereby controlling the opening and closing of the curtains. In actual use, the motor can be designed to be detachable and easy to replace and upgrade. For example, if it is upgraded to a smart motor, it can be controlled through the network, voice and timer, thereby improving the degree of intelligence and enhancing the user experience.

[0003] The patent publication number CN219183389U discloses a dual-motor curtain drive mechanism, and specifically discloses an outer shell, a driver is arranged in the outer shell, and also includes a power output structure, the power output structure includes a transmission gear connected to the output end of the driver, and the transmission gear is connected to the output end of the driver through a circumferential limiting structure. The circumferential limiting structure includes a gear mounting groove arranged on the output end, the intermediate shaft of the transmission gear is inserted into the gear mounting groove, a plurality of limiting ribs are arranged circumferentially on the inner wall of the gear mounting groove, the limiting ribs are arranged along the axial direction of the output end, and a plurality of rib card grooves matching the limiting ribs are arranged circumferentially on the outer wall of the intermediate shaft.

[0004] Since the motor box and the transmission box are detachably connected and the intermediate shaft is arranged in the transmission box, it can be seen that when the intermediate shaft is connected to the outer shell, the limiting ribs and the rib slots need to be arranged relative to each other. The installer needs to align the limiting ribs and the rib slots, which is very inconvenient. Utility Model Content

[0005] The technical problem to be solved by the utility model is that when the intermediate shaft and the outer shell are butted against each other, the limiting ribs and the rib slots need to be arranged relatively to each other, and the installer needs to align the limiting ribs and the rib slots, which is very inconvenient.

[0006] The utility model solves the above-mentioned technical problems through the following technical solutions: a docking structure between a motor box and a transmission box, comprising a transmission shaft arranged in the transmission box, comprising a driving source and an output rotating member arranged in the motor box, and a sleeve member transmission-connected to the driving source, wherein the central axis of the sleeve member coincides with the central axis of the output rotating member, the sleeve member and the output rotating member are circumferentially limitedly connected, the output rotating member is axially slidably connected to the sleeve member, a compression elastic member is abutted between the sleeve member and the output rotating member, and the transmission shaft is transmission-connected to the output rotating member.

[0007] Further, a first cavity is provided in the sleeve member, and at least a part of the output rotating member is slidably connected in the first cavity.

[0008] Further, a second cavity is provided in the output rotating member, one end of the compression elastic member is in the first cavity, and the other end of the compression elastic member is in the second cavity.

[0009] Further, a guide post is further included. One end of the guide post is fixedly connected to the output rotating member, and the other end of the guide post is slidably connected in the sleeve member.

[0010] Further, at least one of the sleeve member and the output rotating member is provided with a first mounting post.

[0011] Further, one end of the guide post is fixedly connected to the first mounting post located on the output rotating member.

[0012] Further, a through hole is formed in the first mounting post on the sleeve member, and the other end of the guide post passes through the through hole.

[0013] Further, at least one of the sleeve member and the output rotating member is provided with a second mounting post, and the compression elastic member abuts against the second mounting post.

[0014] Further, a plurality of ribs arranged along the circumferential direction of the output rotating member and a groove arranged along the circumferential direction of the sleeve member are further included, and the ribs are adapted to the groove.

[0015] Further, it further includes: at least two protrusions are arranged along the circumferential direction of the end face of the transmission shaft close to the output rotating member, and at least two depressions are arranged along the circumferential direction of the end face of the output rotating member close to the transmission shaft, and the protrusions are adapted to the depressions.

[0016] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0017] The positive and progressive effects of the present utility model are as follows: By arranging a compression elastic member between the sleeve member and the output rotating member, the sleeve member and the output rotating member are circumferentially limited and connected, and the output rotating member is axially slidably connected to the sleeve member along the sleeve member. A compression elastic member is abutted between the sleeve member and the output rotating member. In this way, when the transmission shaft is docked with the output rotating member, only the motor box and the transmission box need to be directly docked, and then the driving source is started. Due to the circumferential limit between the sleeve member and the output rotating member, when the driving source drives the sleeve member to rotate, the output rotating member can rotate together. Until the output rotating member rotates to the position aligned with the transmission shaft, under the action of the compression elastic member, the output rotating member can slide axially along the sleeve member towards the transmission shaft direction, so that the transmission shaft and the output rotating member are automatically aligned. In this way, the installer does not need to align the limiting rib and the rib slot, which is very fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of a docking structure between a motor box and a transmission box of the present utility model.

[0019] Figure 2 It is a cross-sectional view when the second mounting post is adopted in the present utility model.

[0020] Figure 3 For Figure 2 The enlarged view at B in

[0021] Figure 4 It is a partial exploded view when the second mounting post is adopted in the present utility model.

[0022] Figure 5 It is a cross-sectional view when the guide post is adopted in the present utility model.

[0023] Figure 6 For Figure 5 The enlarged view at D in

[0024] Figure 7 It is a partial exploded view when the guide post is adopted in the present utility model.

[0025] Figure 8 It is a structural diagram of the guide post of the present utility model.

[0026] Figure 9 It is a structural diagram of the output rotating member when the guide post is adopted in the present utility model.

[0027] Figure 10 It is a structural diagram of the sleeve member when the guide post is adopted in the present utility model.

[0028] Figure 11 It is a structural diagram when the second mounting post is adopted in the present utility model.

[0029] Figure 12 It is a structural diagram when the second mounting post is adopted in the present utility model.

[0030] Description of reference numerals: 1, first cavity; 2, second cavity; 3, sleeve member; 4, output rotating member; 5, elastic member; 6, guiding column; 601, screw head portion; 602, stud portion; 7, transmission shaft; 8, protrusion; 9, depression; 10, motor box; 11, transmission box; 13, first mounting post; 14, second mounting post; 15, groove; 16, mounting hole; 17, sliding cavity; 18, rib. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation to the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] It should be noted that in the claims and the specification of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one" does not exclude the existence of another identical element in the process, method, article or device including the element.

[0033] The present invention discloses a docking structure between a motor box 10 and a transmission box 11, as Figure 1-12 shown, including a transmission shaft 7 provided on the transmission box 11, a drive source and an output rotating member 4 provided on the motor box 10, a sleeve member 3 drivingly connected to the drive source, the central axis of the sleeve member 3 and the central axis of the output rotating member 4 coincide, the sleeve member 3 and the output rotating member 4 are circumferentially limited and connected, the output rotating member 4 is axially slidably connected to the sleeve member 3, a compression elastic member 5 is abutted between the sleeve member 3 and the output rotating member 4, the compression elastic member 5 applies a force to the output rotating member 4 tending to the transmission shaft 7, and the transmission shaft 7 is drivingly connected to the output rotating member 4.

[0034] The drive shaft 7 is a transmission component within the transmission case 11 in the prior art; the drive source is a combination of a motor, a speed reducer, etc. in the prior art. The motor case 10 is installed on the transmission case 11 in a detachable manner. A sleeve member 3 is connected to the output end of the drive source. A compression elastic member 5 is provided between the sleeve member 3 and the output rotating member 4. Preferably, the compression elastic member 5 is a compression spring. In the initial state, the compression spring can apply a force to the output rotating member 4 tending towards the drive shaft 7; the compression spring is relatively easy to manufacture.

[0035] The transmission connection method between the drive shaft 7 and the output rotating member 4 can adopt the transmission connection method of a limiting rib and a rib groove in the prior art. The limiting rib is arranged circumferentially along the drive shaft 7, and the rib groove is arranged on the output rotating member 4, or the connection method of a shaft and a hole, and the hole can be a polygonal hole. The polygonal hole is arranged on the output rotating member 4, and the cross-section of the shaft is also polygonal.

[0036] Preferably, the sleeve member 3 is installed at the output end of the drive source. In the prior art, when an electric curtain is manual-automatic integrated, a clutch needs to be set at the output end of the drive source. The specific structure of the clutch is in the prior art, so the sleeve member can also be installed at one end of the clutch.

[0037] The specific principle is as follows: When the drive shaft 7 and the output rotating member 4 need to be docked, the installer does not need to align the drive shaft 7 with the output rotating member 4. Then start the drive source, and the drive source drives the sleeve member 3 to rotate. Since the sleeve member 3 and the output rotating member 4 are circumferentially limited in connection, the output rotating member 4 can also rotate. Until the output rotating member 4 rotates to the docking position with the drive shaft 7, due to the compression elastic member 5 applying a force to the output rotating member 4 tending towards the drive shaft 7, the output rotating member 4 axially slides in the direction towards the drive shaft 7 under the action of the compression elastic member 5, so that the drive shaft 7 and the output rotating member 4 are automatically aligned, and the installer does not need to align the limiting rib and the rib groove. The installer's operation is convenient and fast. The central axis of the sleeve member 3 coincides with the central axis of the output rotating member 4, and the sleeve member 3 and the output rotating member 4 are circumferentially limited in connection, ensuring that the rotation of the sleeve member 3 can drive the rotation of the output rotating member 4, so that the sleeve member 3 and the output rotating member 4 both rotate along the same central axis under the drive of the drive source.

[0038] When the output rotating member 4 is docked with one end of the drive shaft 7, the situation of misalignment may occur. Then, start the drive source, and the drive source drives the sleeve member 3 and the output rotating member 4 to rotate together. Under the action of the compression elastic member 5, the output rotating member 4 axially slides in the direction towards the drive shaft, so that the drive shaft 7 and the output rotating member 4 are automatically aligned, and the installation alignment is very fast.

[0039] Such as Figure 10 、 12As shown, specifically, a first cavity 1 is provided inside the sleeve member 3, and at least a part of the output rotating member 4 is slidably connected inside the first cavity 1.

[0040] Preferably, a first cavity 1 is provided inside the sleeve member 3 for at least a part of the output rotating member 4 to enter. The output rotating member 4, as Figure 4 , 7 , 9, and 11 show, can be divided into an upper part and a lower part. The upper part is used for driving connection and cooperation with the transmission shaft 7 inside the transmission case 11. The lower part can enter the first cavity 1, and a retaining ring is used to separate the upper part and the lower part in the middle. Preferably, the retaining ring does not enter the first cavity 1. Preferably, in the initial state, the retaining ring abuts against the top wall of the sleeve member 3; when the transmission shaft 7 and the output rotating member 4 are paired and installed, the output rotating member 4 slides axially toward the transmission shaft 7 under the action of the compression elastic member 5.

[0041] As Figure 9 , 11 show, a second cavity 2 is provided inside the output rotating member 4. One end of the compression elastic member 5 is inside the first cavity 1, and the other end of the compression elastic member 5 is inside the second cavity 2.

[0042] As Figure 9 , 11 show, the opening of the second cavity 2 faces downward, and the opening of the first cavity 1 faces upward. One end of the compression elastic member 5 abuts against the bottom wall of the first cavity 1, and the other end of the compression elastic member 5 abuts against the top wall of the second cavity 2. In the initial state, the compression elastic member 5 is in a compressed state; when the output rotating member 4 moves toward the transmission shaft 7, the compression elastic member 5 elongates. The settings of the first cavity 1 and the second cavity 2 provide a receiving space for the compression elastic member 5.

[0043] Specifically, it further includes a guide post 6. One end of the guide post 6 is fixedly connected to the output rotating member 4, and the other end of the guide post 6 is slidably connected inside the sleeve member 3.

[0044] The function of the guide post 6 is to connect the sleeve member 3 and the output rotating member 4 to make the connection between the sleeve member 3 and the output rotating member 4 relatively stable. Since the output rotating member 4 can slide relative to the sleeve member 3, the guide post 6 is correspondingly set to be slidable. One end of the guide post 6 is fixedly connected to the bottom of the output rotating member 4, and the other end of the guide post 6 is slidably connected to the inside of the sleeve member 3. A sliding cavity can be provided inside the sleeve member 3, and the other end of the guide post 6 is arranged inside the sliding cavity. Preferably, the guide post 6 is arranged through the inside of the compression elastic member 5, which makes the installation of the compression elastic member 5 convenient and can be sleeved outside the guide post 6. Or, the compression elastic member 5 and the guide post 6 are arranged in parallel.

[0045] In addition, one end of the guide post 6 can also be fixedly connected inside the sleeve member 3, and the other end is slidably connected inside the output rotating member 4.

[0046] At least one of the sleeve member 3 and the output rotating member 4 is provided with a first mounting post 13.

[0047] For the convenience of installing the guide post 6, the first mounting post 13 is installed on one of the sleeve member 3 and the output rotating member 4, or both the sleeve member 3 and the output rotating member 4 are installed with the first mounting post 13. Preferably, as Figure 5 、 6 shown, both the sleeve member 3 and the output rotating member 4 are installed with the first mounting post 13. One end of the guide post 6 is installed on the first mounting post 13, and the other end is movably installed on the first mounting post 13.

[0048] One end of the guide post 6 is fixedly connected to the first mounting post 13 located on the output rotating member 4.

[0049] An opening for one end of the guide post 6 to extend into is provided at one end of the first mounting post 13 on the output rotating member 4, and the opening is in cooperation with one end of the guide post 6 in a snap - connection manner.

[0050] A through - hole is formed in the first mounting post 13 located on the sleeve member 3, and the other end of the guide post 6 passes through the through - hole.

[0051] To ensure that the guide post 6 does not shake when it is inside the first mounting post 13 on the sleeve member 3, a sliding cavity 17 is provided inside the first mounting post 13 on the sleeve member 3, and the other end of the guide post 6 is slidably connected inside the sliding cavity 17. An installation hole 16 is also formed in the first mounting post 13 on the sleeve member 3, and the installation hole 16 facilitates the installation of the guide post 6 into the first mounting post 13 on the sleeve member 3. Preferably, the through - hole and the installation hole 16 are located on both sides of the first mounting post 13 on the sleeve member 3.

[0052] Of course, one end of the guide post 6 can also be fixedly connected inside the first mounting post 13 on the sleeve member 3, and the other end is slidably connected inside the first mounting post 13 on the output rotating member.

[0053] Specifically, the guide post 6 includes a screw head portion 601 and a screw post portion 602 connected to each other. The screw head portion 601 is slidably connected inside the sliding cavity 17, and one end of the screw post portion 602 away from the screw head portion 601 is fixedly connected to the first mounting post 13 located on the output rotating member 4.

[0054] In order to prevent the guide post 6 from disengaging from the sliding cavity 17 when the guide post 6 slides in the sliding cavity 17, the guide post 6 is provided with a screw head portion 601 and a stud portion 602, and the diameter of the screw head portion 601 is larger than the inner diameter of the through hole. One end of the screw head portion 601 is slidably connected in the sliding cavity 17, and the end of the stud portion 602 away from the screw head portion 601 is snap-connected to the first mounting post 13. The end of the stud portion 602 away from the screw head portion 601 forms a stepped end, and the hook on the first mounting post 13 is snapped into the above-mentioned stepped end.

[0055] By pre-installing the output rotating member 4, the guide post 6, the sleeve member 3, and the compression elastic member 5 in advance, and then installing them on the output end of the drive source.

[0056] As Figure 3 shown, at least one of the sleeve member 3 and the output rotating member 4 is provided with a second mounting post 14, and the compression elastic member 5 abuts against the second mounting post 14.

[0057] When the guide post 6 is not used and the compression elastic member 5 is a compression spring, at least one of the sleeve member 3 and the output rotating member 4 is provided with a second mounting post 14. That is, the second mounting post 14 is provided on the sleeve member 3, and the second mounting post 14 is not provided on the output rotating member 4. One end of the compression elastic member 5 abuts against the second mounting post 14, and the other end directly abuts against the inner wall of the output rotating member 4. Or, the second mounting post 14 is not provided on the sleeve member 3, and the second mounting post 14 is provided on the output rotating member 4. One end of the compression elastic member 5 abuts against the second mounting post 14, and the other end directly abuts against the inner wall of the sleeve member 3. Or, the second mounting post 14 is provided on both the sleeve member 3 and the output rotating member 4, and both ends of the compression elastic member 5 abut against the second mounting post 14. The setting of the second mounting post 14 ensures that the compression elastic member 5 will not generate axial offset during movement.

[0058] The compression elastic member 5 can also be a compression spring sheet. At this time, there is no need to provide a second mounting post 14, and both ends of the compression spring sheet can be respectively abutted against the sleeve member 3 and the output rotating member 4.

[0059] It further includes a plurality of ribs 18 arranged along the circumferential direction of the output rotating member 4 and a groove 15 arranged along the circumferential direction of the sleeve member 3, and the ribs 18 are adapted to the groove 15.

[0060] The sleeve member 3 and the output rotating member 4 are connected by circumferential limit. Preferably, spline fit connection is adopted, which can make the sleeve member 3 and the output rotating member 4 be closely slidably connected and cooperate, but cannot rotate relative to each other. Preferably, the sleeve member 3 is provided with a plurality of grooves 15 along the circumferential direction, and the lower part of the output rotating member 4 is provided with a plurality of ribs 18 along the circumferential direction. The ribs 18 and the grooves 15 are adapted to achieve the purpose of circumferential limit connection between the two.

[0061] The spline connection method prevents relative rotation between the output rotating part 4 and the sleeve part 3. When the drive source operates, due to the arrangement of the compression elastic part 5, the output rotating part 4 can axially slide along the direction of the transmission shaft 7, and the central axes of the output rotating part 4 and the transmission shaft 7 coincide. The drive source drives the rotation of the output rotating part 4, enabling the transmission shaft 7 and the output rotating part 4 to be automatically aligned. In this way, the installation alignment is very fast, without manual alignment, which is relatively convenient.

[0062] It further includes: at least two protrusions 8 are circumferentially arranged on the end face of the transmission shaft 7 close to the output rotating part 4, and at least two depressions 9 are circumferentially arranged on the end face of the output rotating part 4 close to the transmission shaft 7, and the protrusions 8 and the depressions 9 are adapted to each other.

[0063] Preferably, a rotational plug-in fit is adopted between the transmission shaft 7 and the output rotating part 4. As Figure 4 、 7 shown, two protrusions 8 and two depressions 9 are correspondingly matched. The two protrusions 8 are arranged on the end face of the transmission shaft 7, and the two protrusions 8 are symmetrically arranged about the center axis of the transmission shaft 7. The two depressions 9 are arranged on the upper surface of the output rotating part 4, and the two depressions 9 are symmetrically arranged about the center axis of the output rotating part 4. After the two protrusions 8 respectively enter the two depressions 9, a rotational plug-in fit is formed between the transmission shaft 7 and the output rotating part 4.

[0064] After considering the specification and the disclosure here in practice, those skilled in the art will easily think of other implementation schemes of the present invention. This application aims to cover any variations, uses or adaptive changes of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed in the present invention. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0065] It should be understood that the present invention is not limited to the precise structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A docking structure of a motor box (10) and a transmission box (11), characterized in that: It comprises a transmission shaft (7) arranged on a transmission box (11); The invention comprises a driving source and an output rotating member (4) arranged in a motor box (10), and a sleeve member (3) drivingly connected to the driving source, wherein the central axis of the sleeve member (3) coincides with the central axis of the output rotating member (4), the sleeve member (3) and the output rotating member (4) are circumferentially limitedly connected, the output rotating member (4) is slidably connected to the sleeve member (3) along its axial direction, a compression elastic member (5) is abutted between the sleeve member (3) and the output rotating member (4), and the transmission shaft (7) is drivingly connected to the output rotating member (4).

2. The docking structure of a motor box (10) and a transmission box (11) according to claim 1, characterized in that: A first cavity (1) is provided in the sleeve member (3), and at least a portion of the output rotating member (4) is slidably connected in the first cavity (1).

3. The docking structure of a motor box (10) and a transmission box (11) according to claim 2, characterized in that: A second cavity (2) is provided in the output transfer member (4), one end of the compression elastic member (5) is located in the first cavity (1), and the other end of the compression elastic member (5) is located in the second cavity (2).

4. The docking structure of a motor box (10) and a transmission box (11) according to claim 1, characterized in that: It also includes a guide column (6), one end of which is fixedly connected to the output rotating member (4), and the other end of which is slidably connected to the sleeve member (3).

5. The docking structure of a motor box (10) and a transmission box (11) according to claim 4, characterized in that: At least one of the sleeve member (3) and the output rotating member (4) is provided with a first mounting column (13).

6. The docking structure of a motor box (10) and a transmission box (11) according to claim 5, characterized in that: One end of the guide column (6) is fixedly connected to the first mounting column (13) located on the output rotating member (4).

7. A docking structure of a motor box (10) and a transmission box (11) according to any one of claims 5 or 6, characterized in that: A through hole is provided on the first mounting column (13) located on the sleeve member (3), and the other end of the guide column (6) passes through the through hole.

8. The docking structure of a motor box (10) and a transmission box (11) according to claim 1, characterized in that: At least one of the sleeve member (3) and the output rotating member (4) is provided with a second mounting column (14), and the compression elastic member (5) abuts against the second mounting column (14).

9. The docking structure of a motor box (10) and a transmission box (11) according to claim 1, characterized in that: It also comprises a plurality of ribs (18) arranged along the circumference of the output rotating member (4), and a groove (15) arranged along the circumference of the sleeve member (3), wherein the ribs (18) are adapted to the grooves (15).

10. The docking structure of a motor box (10) and a transmission box (11) according to claim 1, characterized in that: Also includes: At least two protrusions (8) are provided along the circumference of the end surface of the transmission shaft (7) close to the output rotating member (4), and at least two recesses (9) are provided along the circumference of the end surface of the output rotating member (4) close to the transmission shaft (7), and the protrusions (8) are matched with the recesses (9).

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