Stroke head

Abstract

The utility model relates to the technical field of curtains, and discloses a stroke head which is characterized by comprising a support, supports and an inner gear sleeve, the inner gear sleeve is rotatably connected to the support, the supports are connected with the support, two sets of adjusting mechanisms are arranged between the supports, each adjusting mechanism comprises an adjusting portion and two microswitches, the two microswitches are oppositely arranged, and the adjusting portions are arranged on the inner gear sleeve. The two microswitches are arranged on the support and connected to the support in a sliding mode, the two microswitches can be independently adjusted, so that the highest ascending point can be independently set, the lowest descending point can be independently set, the stroke adjustment is more convenient, the microswitches and the triggering piece are moved, the moving direction of the triggering piece is the connecting line direction between the two microswitches, and the stroke adjustment is more convenient. The overall length of the stroke head can be reduced, and therefore the occupied space of the stroke head is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, and more specifically to a travel head. Background Art

[0002] Roller blinds are a type of window decoration product. The curtain fabric is processed with resin and rolled into a drum shape. It is raised and lowered by pulling or chain. In electric roller blinds, the motor is set in the drum to drive the drum to rotate, thereby realizing the rise and fall of the curtain fabric.

[0003] Different window sizes have different total heights, and the electric roller shutter needs to set its stroke, which is set by the stroke head. The existing stroke head has a fixed micro switch inside, and the trigger is driven to move by the screw, so that the trigger cooperates with the micro switch to set its stroke;

[0004] However, this method makes the total length of the stroke head longer and occupies more space. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a travel head for reducing the occupied length of the travel head.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a travel head, comprising a support, a bracket and an inner gear sleeve, wherein the inner gear sleeve is rotatably connected to the support, the bracket is connected to the support, two groups of adjustment mechanisms are arranged between the brackets, the adjustment mechanism comprises an adjustment part and a micro switch, two micro switches are arranged opposite to each other and slidably connected to the bracket, and the adjustment part is used to drive the corresponding micro switch to move so that the two micro switches are close to or away from each other;

[0007] A transmission mechanism is arranged between the inner gear sleeve and the bracket, and the transmission mechanism includes a transmission part and a trigger member. The trigger member extends between the two micro switches, and the inner gear sleeve drives the trigger member to move along the connection direction between the two micro switches through the transmission part.

[0008] As a further improvement of the present invention, the support includes a base and a connecting piece, the base is detachably connected to the connecting piece, and the connecting piece is detachably connected to the bracket.

[0009] As a further improvement of the present invention, the inner gear sleeve is sleeved on the connecting piece.

[0010] As a further improvement of the present invention, the adjusting mechanism further comprises a moving part, the micro switch is connected to the moving part, the moving part is slidably connected to the bracket, and the moving part is transmission-connected to the adjusting part.

[0011] As a further improvement of the present invention, the adjusting portion includes an adjusting rod and an adjusting member, the adjusting member is rotatably connected to the support, one end of the adjusting rod is transmission connected to the adjusting member, and the other end of the adjusting rod is transmission connected to the moving member.

[0012] As a further improvement of the utility model, both ends of the adjusting rod are connected with adjusting gears, one of the adjusting gears is meshed with the adjusting member, and the other adjusting gear is meshed with the moving member.

[0013] As a further improvement of the present invention, the adjusting member is vertically arranged to the adjusting rod.

[0014] As a further improvement of the present invention, the transmission part includes a reduction gear set and a transmission gear, the input end of the reduction gear set is transmission connected to the transmission gear, the output end of the reduction gear set is transmission connected to the trigger member, and the transmission gear is meshed with the inner gear sleeve.

[0015] As a further improvement of the present invention, the reduction gear set includes a first transmission rod, an outer gear sleeve is connected to the first transmission rod, an inner gear hole is opened on the transmission gear, and the outer gear sleeve is connected to the transmission gear through the inner gear hole.

[0016] As a further improvement of the present invention, the reduction gear group also includes a second transmission rod, the first transmission rod is connected to at least one first transmission tooth, the second transmission rod is connected to at least one second transmission tooth, the first transmission tooth includes a first large tooth and a first small tooth, the second transmission tooth includes a second large tooth and a second small tooth, the first large tooth is meshed with the corresponding second small tooth, the second large tooth located at the head end is meshed with the outer gear sleeve, the first small tooth located at the tail end is meshed with the trigger member, and the remaining first small teeth are meshed with the corresponding second large teeth.

[0017] The beneficial effects of the utility model: the two micro switches in the utility model can be adjusted separately, so that the highest point of ascent can be set separately, and the lowest point of descent can also be set separately, and the adjustment stroke is more convenient. By moving the micro switch and the trigger member, the moving direction of the trigger member is the connecting direction between the two micro switches, which can reduce the overall length of the stroke head, thereby reducing the space occupied by the stroke head. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a schematic diagram of the internal structure of the reduction gear set in the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the inner gear sleeve in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the moving parts in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the bracket in the utility model;

[0023] Figure 6 It is a structural schematic diagram of the adjusting member in the utility model;

[0024] Figure 7 It is a structural schematic diagram of the support in the utility model.

[0025] : 1. support; 11. base; 12. connecting piece; 2. bracket; 3. inner gear sleeve; 4. adjusting part; 41. adjusting rod; 42. adjusting piece; 43. adjusting gear; 5. micro switch; 6. transmission gear; 7. trigger piece; 8. moving piece; 9. reduction gear set; 91. first transmission rod; 92. second transmission rod; 93. outer gear sleeve; 94. first transmission tooth; 941. first large tooth; 942. first small tooth; 95. second transmission tooth; 951. second large tooth; 952. second small tooth. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] Reference Figure 1 As shown, a travel head of this embodiment includes a support 1, a bracket 2 and an inner gear sleeve 3, and the inner gear sleeve 3 is connected to the winding tube, so that when the motor drives the winding tube to rotate, the winding tube can simultaneously drive the inner gear sleeve 3 to rotate, thereby controlling the rising or falling stroke of the curtain by the rotation of the inner gear sleeve 3;

[0028] The inner gear sleeve 3 is rotatably connected to the support 1, and the bracket 2 is connected to the support 1. The bracket 2 and the support 1 are detachably connected and connected by bolts, which facilitates the disassembly and assembly between the bracket 2 and the support 1;

[0029] Two groups of adjustment mechanisms are arranged between the bracket 2 and the bracket 2, wherein one group of adjustment mechanisms is used to adjust the upward stroke of the rolling curtain, and the other group of adjustment mechanisms is used to adjust the downward stroke of the rolling curtain, thereby realizing two-way adjustment of the rising process and the falling process of the rolling curtain;

[0030] The adjustment mechanism includes an adjustment part 4 and a micro switch 5. The two micro switches 5 are arranged opposite to each other and are slidably connected to the bracket 2. The adjustment part 4 is used to drive the corresponding micro switch 5 to move so that the two micro switches 5 are close to or away from each other.

[0031] When the two micro switches 5 are close to each other, that is, when the distance between the two micro switches 5 is reduced, the interval distance between the highest point of the roller blind rising and the lowest point of the roller blind falling is reduced;

[0032] When the two micro switches 5 move away from each other, that is, when the distance between the two micro switches 5 increases, the interval distance between the highest point of the roller blind rising and the lowest point of the roller blind falling increases;

[0033] The two micro switches 5 can be adjusted individually, so that the highest point of the rise can be set individually, and the lowest point of the descent can also be set individually, which makes the adjustment of the stroke more convenient.

[0034] A transmission mechanism is arranged between the inner gear sleeve 3 and the bracket 2, and the transmission mechanism includes a transmission part and a trigger member 7. The trigger member 7 extends between the two micro switches 5. The inner gear sleeve 3 drives the trigger member 7 to move along the connecting line direction between the two micro switches 5 through the transmission part. During the movement of the trigger member 7, it will abut against one of the micro switches 5. When the trigger member 7 abuts against the micro switch 5 controlling the highest point of the rise, the motor stops working and the rolling curtain stops rising, that is, the rolling curtain rises to the highest point.

[0035] When the trigger member 7 contacts the micro switch 5 for controlling the lowest point of descent, the motor also stops working and the rolling curtain stops descending, that is, the rolling curtain descends to the lowest point.

[0036] By moving the micro switch 5 and the trigger member 7, with the moving direction of the trigger member 7 being the direction of the connection line between the two micro switches 5, the overall length of the travel head can be reduced, thereby reducing the space occupied by the travel head.

[0037] Reference Figure 6 and Figure 7As shown, the support 1 includes a base 11 and a connecting member 12, the base 11 and the connecting member 12 are detachably connected, and the connecting member 12 and the base 11 are connected by bolts, wherein two bolts are provided to increase the connection stability between the base 11 and the connecting member 12; two first countersunk holes are provided on the base 11, and two first threaded holes are provided on the connecting member 12, the first threaded holes correspond to the first countersunk holes one by one, and the bolts are threadedly connected between the first countersunk holes and the corresponding first threaded holes, thereby realizing the detachable connection between the connecting member 12 and the base 11;

[0038] The connecting piece 12 is detachably connected to the bracket 2, and the connecting piece 12 and the bracket 2 are also detachably connected by bolts. A fixing hole is provided on the base 11, and the fixing hole is used to connect with the outer frame of the curtain;

[0039] Among them, the first countersunk hole is located on both sides of the fixing hole, a second countersunk hole is opened in the fixing hole, a second threaded hole is opened on the bracket 2, the second threaded hole corresponds to the second countersunk hole, and the bolt is threadedly connected with the second threaded hole through the second countersunk hole, thereby realizing a detachable connection between the connector 12 and the bracket 2;

[0040] During the disassembly and assembly process, the support 1 can be directly disassembled and assembled with the bracket 2, or the base 11 and the connecting piece 12 can be disassembled and assembled first, and then the connecting piece 12 and the bracket 2 can be disassembled and assembled. The bolts at the first countersunk hole and the second countersunk hole do not interfere with each other, making disassembly and assembly more convenient.

[0041] Reference Figure 1 and Figure 4 As shown, the inner gear sleeve 3 is sleeved on the connecting member 12, and the connecting member 12 provides a space for the inner gear sleeve 3 to be installed and rotated, so as to facilitate the connection between the inner gear sleeve 3 and the winding tube and prevent the dislocation of the winding tube during rotation.

[0042] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the adjustment mechanism also includes a moving part 8, the micro switch 5 is connected to the moving part 8, two pillars are connected to the moving part 8, two through holes are opened on the micro switch 5, the pillars are inserted into the corresponding through holes to form a limit for the micro switch 5, so that when the moving part 8 moves, the micro switch 5 thereon can be driven to move at the same time, the moving part 8 is slidably connected to the bracket 2, and the moving part 8 is transmission-connected to the adjustment part 4.

[0043] Among them, two slide grooves are opened on the bracket 2, one slide groove corresponds to a moving part 8, one end of the moving part 8 passes through the corresponding slide groove, and a horizontal extension section is added so that the moving part 8 is limited in the vertical direction, thereby preventing the moving part 8 from detaching from the bracket 2.

[0044] The adjusting portion 4 includes an adjusting rod 41 and an adjusting member 42. The adjusting member 42 is rotatably connected to the support 1. Two rotating holes are provided on the support 1. The adjusting member 42 is rotatably connected to the corresponding rotating holes. A hexagonal hole is formed at the top of the adjusting member 42 to facilitate the use of a tool to rotate the adjusting member 42. One end of the adjusting rod 41 is transmission-connected to the adjusting member 42, and the other end of the adjusting rod 41 is transmission-connected to the moving member 8. When the adjusting member 42 rotates, the moving member 8 is driven to move by the transmission of the adjusting rod 41, thereby realizing the movement of the micro switch 5.

[0045] Both ends of the adjusting rod 41 are connected with adjusting gears 43, one of which is meshed with the adjusting member 42, and the other is meshed with the moving member 8. The adjustment is performed by the gear connection, so that the adjustment of the micro switch 5 is more accurate and stable.

[0046] A first tooth surface is formed on the moving member 8 , and the first tooth surface is meshed with the corresponding adjusting gear 43 .

[0047] Reference Figure 6 As shown, the adjusting member 42 is vertically arranged with respect to the adjusting rod 41. The adjusting member 42 is vertically arranged so that the top end of the adjusting member 42 is exposed from the support 1 and will not interfere with the outer frame of the curtain.

[0048] Reference Figure 2 and Figure 3 As shown, the transmission part includes a reduction gear set 9 and a transmission gear 6. The input end of the reduction gear set 9 is transmission-connected to the transmission gear 6, and the output end of the reduction gear set 9 is transmission-connected to the trigger member 7. The transmission gear 6 is meshed with the inner gear sleeve 3. An avoidance hole is provided at the connecting member 12. The avoidance hole extends from the upper part of the transmission gear 6 to facilitate meshing with the inner gear sleeve 3. The inner ring of the inner gear sleeve 3 is formed with an inner gear ring, and the inner gear ring is meshed with the transmission gear 6.

[0049] The reduction gear set 9 includes a first transmission rod 91, and an outer gear sleeve 93 is connected to the first transmission rod 91. An inner gear hole is provided on the transmission gear 6, and the outer gear sleeve 93 is connected to the transmission gear 6 through the inner gear hole, so that the transmission gear 6 and the outer gear sleeve 93 are easily installed. The width of the avoidance hole is greater than the outer diameter of the transmission gear 6, so that the transmission gear 6 can be installed in the connecting member 12 through the avoidance hole, and the outer gear sleeve 93 is connected to the transmission gear 6 after passing through the connecting member 12;

[0050] A ring is integrally formed on the outer gear sleeve 93 , and the ring is rotationally connected to the connecting member 12 , so that the rotation of the outer gear sleeve 93 is more stable.

[0051] The reduction gear group 9 also includes a second transmission rod 92, at least one first transmission tooth 94 is connected to the first transmission rod 91, and at least one second transmission tooth 95 is connected to the second transmission rod 92. The first transmission tooth 94 includes a first large tooth 941 and a first small tooth 942, and the second transmission tooth 95 includes a second large tooth 951 and a second small tooth 952. The first large tooth 941 is meshed with the corresponding second small tooth 952, the second large tooth 951 at the head end is meshed with the outer gear sleeve 93, the first small tooth 942 at the tail end is meshed with the trigger member 7, and the remaining first small teeth 942 are meshed with the corresponding second large teeth 951.

[0052] A second tooth surface is formed at one end of the trigger member 7, and the second tooth surface is meshed with the first small tooth 942 located at the tail end;

[0053] In the case of providing a first transmission tooth 94 and a second transmission tooth 95, the outer gear sleeve 93 meshes with the second large tooth 951, the second small tooth 952 meshes with the first large tooth 941, and the first small tooth 942 meshes with the second tooth surface, so that when the winding tube rotates, the inner gear sleeve 3 is driven to rotate, and the inner gear sleeve 3 drives the outer gear sleeve 93 to rotate through the transmission gear 6, so that the first transmission tooth 94 and the second transmission tooth 95 are both rotated, driving the trigger member 7 to move;

[0054] In order to reduce speed step by step, a plurality of first transmission teeth 94 and second transmission teeth 95 may be arranged in sequence, which can reduce the occupied space and reduce the overall length of the travel head;

[0055] The more first transmission teeth 94 and second transmission teeth 95 there are, the more turns the inner gear sleeve 3 needs to rotate when the trigger member 7 moves the same distance, so the roller blind rises or falls a greater distance.

[0056] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A travel head, characterized in that: The invention comprises a support (1), a bracket (2) and an inner gear sleeve (3), wherein the inner gear sleeve (3) is rotatably connected to the support (1), the bracket (2) is connected to the support (1), two groups of adjustment mechanisms are arranged between the brackets (2), and the adjustment mechanisms comprise an adjustment part (4) and a micro switch (5), two micro switches (5) are arranged opposite to each other and are slidably connected to the bracket (2), and the adjustment part (4) is used to drive the corresponding micro switch (5) to move so that the two micro switches (5) are moved closer to or farther from each other; A transmission mechanism is provided between the inner gear sleeve (3) and the bracket (2), the transmission mechanism comprising a transmission part and a trigger member (7), the trigger member (7) extending between the two micro switches (5), and the inner gear sleeve (3) drives the trigger member (7) to move along the direction of the connection line between the two micro switches (5) through the transmission part.

2. A travel head according to claim 1, characterized in that: The support (1) comprises a base (11) and a connecting piece (12); the base (11) and the connecting piece (12) are detachably connected, and the connecting piece (12) and the bracket (2) are detachably connected.

3. A travel head according to claim 2, characterized in that: The inner gear sleeve (3) is sleeved on the connecting member (12).

4. A travel head according to any one of claims 1 to 3, characterized in that: The regulating mechanism further comprises a moving part (8), the micro switch (5) is connected to the moving part (8), the moving part (8) is slidably connected to the bracket (2), and the moving part (8) is transmission-connected to the regulating part (4).

5. A travel head according to claim 4, characterized in that: The adjusting portion (4) comprises an adjusting rod (41) and an adjusting member (42); the adjusting member (42) is rotatably connected to the support (1); one end of the adjusting rod (41) is transmission-connected to the adjusting member (42); and the other end of the adjusting rod (41) is transmission-connected to the moving member (8).

6. A travel head according to claim 5, characterized in that: Both ends of the adjusting rod (41) are connected with adjusting gears (43), one of the adjusting gears (43) is meshed with the adjusting member (42), and the other of the adjusting gears (43) is meshed with the moving member (8).

7. A travel head according to claim 6, characterized in that: The adjusting member (42) is arranged perpendicularly to the adjusting rod (41).

8. A travel head according to any one of claims 1 to 3, characterized in that: The transmission part comprises a reduction gear set (9) and a transmission gear (6); the input end of the reduction gear set (9) is transmission-connected to the transmission gear (6); the output end of the reduction gear set (9) is transmission-connected to the trigger member (7); and the transmission gear (6) is meshed with the inner gear sleeve (3).

9. A travel head according to claim 8, characterized in that: The reduction gear set (9) comprises a first transmission rod (91), the first transmission rod (91) is connected to an external gear sleeve (93), the transmission gear (6) is provided with an internal gear hole, and the external gear sleeve (93) is connected to the transmission gear (6) through the internal gear hole.

10. A travel head according to claim 9, characterized in that: The deceleration gear set (9) further comprises a second transmission rod (92), the first transmission rod (91) being connected to at least one first transmission tooth (94), the second transmission rod (92) being connected to at least one second transmission tooth (95), the first transmission tooth (94) comprising a first large tooth (941) and a first small tooth (942), the second transmission tooth (95) comprising a second large tooth (951) and a second small tooth (952), the first large tooth (941) being meshed with the corresponding second small tooth (952), the second large tooth (951) at the head end being meshed with the outer gear sleeve (93), the first small tooth (942) at the tail end being meshed with the trigger member (7), and the remaining first small teeth (942) being meshed with the corresponding second large teeth (951).

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