Angle adjusting mechanism and quilt rolling machine limiting device

Abstract

The invention discloses an angle adjusting mechanism and a quilt rolling machine limiting device, and relates to the technical field of quilt rolling machines. Comprising a fixed sleeve, a positioning rod coaxially arranged with the fixed sleeve, a rotating piece arranged between the fixed sleeve and the positioning rod, a reset piece arranged at the bottom of the rotating piece, an extrusion piece arranged on the side wall of the fixed sleeve and a pressing piece pushing the extrusion piece to be close to the rotating piece. The extrusion piece can push the rotating piece to abut against the positioning rod, and then limiting of the rotating piece is achieved. The limiting device has the beneficial effects that a limiting mode with the encoder as the core is adopted, the encoder converts a rotation displacement signal into an electric signal, after the encoder moves to a preset distance, the control mainboard controls the motor to rotate, and therefore limiting of the limiting device of the quilt rolling machine is achieved; meanwhile, the angle adjusting unit can flexibly adjust the positions of the distance measuring unit and the shed roof, and the accuracy of signal transmission of the encoder is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of quilt rolling machines, in particular to an angle adjustment mechanism and a limiting device for a quilt rolling machine. Background Art

[0002] In northern my country, especially in the northwest and northeast regions, the climate is extremely cold in winter. Agricultural greenhouses need to be covered with a thick quilt to keep the temperature inside the greenhouse above 0°C and protect the crops from being frozen. Therefore, the quilt roll machine limit device is widely used in northern China.

[0003] The traditional AC blanket winder limit device has upper and lower limit functions; the lower limit uses a foot switch, and the upper limit uses a ball switch; the operating mechanism is that when the blanket winder limit device runs to the upper limit, the ball switch is turned on, and the control main board sends a stop command; when the blanket winder limit device runs to the lower limit, the foot switch is turned on, and the control main board sends a stop command; this limit control method increases the complexity of wiring and control logic, and increases the burden on the control main board of the blanket winder limit device. Summary of the invention

[0004] In view of the above-mentioned prior art problems, the present invention is proposed.

[0005] The purpose of the present invention is to provide an angle adjustment mechanism, which aims to solve the problem that the wiring of the limit control device of the existing winding machine is complicated and the burden of the control main board is increased.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: an angle adjustment mechanism, comprising: an angle adjustment unit, comprising a fixed sleeve, a positioning rod coaxially arranged with the fixed sleeve, a rotating member arranged between the fixed sleeve and the positioning rod, an extrusion member arranged on a side wall of the fixed sleeve, and a pressing member for pushing the extrusion member close to the rotating member;

[0007] The extruding member can push the rotating member to conflict with the positioning rod, thereby limiting the position of the rotating member, and;

[0008] The distance measuring unit comprises an encoder, a distance measuring wheel connected to the encoder, and a connecting rod member for connecting the encoder and the rotating member.

[0009] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the rotating member includes a pressing ring, a clamping plate and a first limiting tooth;

[0010] The clamping plates are arranged in a circumferential array along the axis of the pressing ring at its end;

[0011] The pressing rings are provided in multiple groups, and the multiple groups of pressing rings are evenly distributed along the inner side of the clamping plate;

[0012] The side wall of the limiting end of the positioning rod is provided with a second limiting tooth matched with the first limiting tooth.

[0013] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the clamping plate includes an arc portion and a buckle portion;

[0014] The arc portion is located at the connection position between the clamping plate and the pressing ring, and the clamping plate is pressed to bend along the arc portion.

[0015] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the extrusion member includes an extrusion plate and a sliding block;

[0016] The extrusion plate is connected to the sliding block;

[0017] The pressing member includes a support rod, a pressing plate and an elastic member;

[0018] The elastic member is sleeved on the outside of the support rod, and one end of the elastic member is connected to the pressure plate;

[0019] The support rod is linked with the sliding block;

[0020] The bottom of the pressing ring can contact the top of the supporting rod.

[0021] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the support rod includes a guide rod arranged at the end thereof;

[0022] The sliding block includes a notch opened at a central position, and a sliding groove opened on a side wall of the notch;

[0023] The end of the support rod is located inside the notch, and the guide rod is adapted to the slide groove;

[0024] The support rod moves in the vertical direction and can drive the sliding block to move in the horizontal direction.

[0025] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the fixed sleeve includes a mounting sleeve arranged on the side wall thereof;

[0026] The pressing piece is located inside the mounting sleeve, and the extruding piece is penetrated through the side wall of the fixing sleeve.

[0027] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the fixed sleeve further comprises a screw sleeve arranged inside the fixed sleeve, and the connecting end of the positioning rod passes through the inner side of the screw sleeve;

[0028] The limiting end of the positioning rod can conflict with the buckle portion.

[0029] As a preferred solution of the angle adjustment mechanism of the present invention, wherein: the connecting rod comprises a support plate and a connecting buckle;

[0030] One end of the connecting buckle is connected to the rotating member, and the other end thereof is connected to the supporting plate;

[0031] The distance measuring wheel and the rotating member are kept flush with each other through the connecting buckle.

[0032] The beneficial effects of the angle adjustment mechanism of the present invention are as follows: a limiting method with an encoder as the core is adopted, the encoder converts the rotational displacement signal into an electrical signal, and after moving to a predetermined distance, the control main board will control the motor to rotate, thereby realizing the limiting of the limiting device of the quilt rolling machine; at the same time, the angle adjustment unit can flexibly adjust the position of the distance measuring unit and the ceiling, thereby ensuring the accuracy of the signal transmitted by the encoder.

[0033] Another object of the present invention is to provide a limiting device for a quilt rolling machine, which aims to solve the problem that the existing limiting device for a quilt rolling machine needs to occupy a large amount of space during installation.

[0034] In order to solve the above technical problems, the present invention also provides the following technical solutions: a limiting device for a quilt winding machine, comprising an angle adjustment mechanism; and a winding unit, comprising a first connecting rod, a winding device arranged at one end of the first connecting rod, a second connecting rod arranged at the other end of the first connecting rod and hinged thereto, a supporting leg arranged at the end of the second connecting rod, a roller arranged at the bottom of the supporting leg, and a winding rod penetrating the winding device;

[0035] The distance measuring unit is installed on the side wall of the reel through the angle adjusting unit.

[0036] As a preferred solution of the limiting device of the quilt rolling machine of the present invention, wherein: the first connecting rod includes a mounting plate and a first hinged portion;

[0037] The second connecting rod includes a second hinged portion and a flange buckle;

[0038] The mounting plate is connected to the reel, and the first hinged portion is hinged to the second hinged portion;

[0039] The second connecting rod is connected to the supporting leg via the flange buckle;

[0040] The roller is movably connected to the supporting legs.

[0041] The beneficial effects of the quilt rolling machine limiting device of the present invention are: through the cooperation between the first connecting rod and the second connecting rod, the distance between the supporting components can be shortened, thereby better facilitating the use of the quilt rolling machine limiting device; the arranged roller can ensure that the supporting components move with the movement of the winder, thereby shortening the area occupied by the quilt rolling machine limiting device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 It is a schematic diagram of the connection structure between the angle adjustment unit and the distance measurement unit in the present invention.

[0044] Figure 2 It is a schematic diagram of the structure of the angle adjustment unit in the present invention.

[0045] Figure 3 It is a cross-sectional view of the angle adjustment unit in the present invention.

[0046] Figure 4 For the present invention Figure 3 A partial enlarged view of point A.

[0047] Figure 5 It is a schematic diagram of the exploded structure of the rotating part and the pressing part in the present invention.

[0048] Figure 6 It is a schematic diagram of the explosion structure of the fixed sleeve and the pressing piece in the present invention.

[0049] Figure 7 For the present invention Figure 6 A partial enlarged view of B.

[0050] Figure 8 It is a schematic structural diagram of the limiting device of the quilt rolling machine of the present invention. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0053] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0054] Example 1

[0055] Reference Figure 1 , is the first embodiment of the present invention, which provides an angle adjustment mechanism, including an angle adjustment unit 100, including a fixed sleeve 101, a positioning rod 102, a rotating member 103, a reset member 104, an extrusion member 105 and a pressing member 106; the positioning rod 102 is coaxially arranged with the fixed sleeve 101, the rotating member 103 is arranged between the fixed sleeve 101 and the positioning rod 102, the extrusion member 105 passes through the side wall of the fixed sleeve 101 and extends to the outside thereof, and the pressing member 106 can push the extrusion member 105 to approach the rotating member 103 and squeeze the rotating member 103; through the friction between the positioning rod 102 and the rotating member 103, the rotation of the rotating member 103 along its axial direction can be limited.

[0056] In this embodiment, the fixed sleeve 101 is a tubular structure with a hollow interior, and the positioning rod 102 is connected to the fixed sleeve 101; the positioning rod 102 is fixed at the center of the fixed sleeve 101, and the gap inside the positioning rod 102 provides a certain movement space for the rotating part 103; the bottom of the fixed sleeve 101 is connected to a mounting plate, which makes it easy to install the fixed sleeve 101 in the corresponding position by tightening the mounting plate with bolts.

[0057] Furthermore, the fixed sleeve 101 and the positioning rod 102 can be connected in a fixed manner by welding or in a detachable manner; the detachable connection can be achieved by an interference fit between the fixed sleeve 101 and the positioning rod 102, so that the fixed sleeve 101 and the positioning rod 102 are tightly connected; the fixed sleeve 101 and the positioning rod 102 can also be connected by a threaded connection; preferably, the threaded connection is used to better facilitate the staff to complete the assembly of the equipment components during assembly.

[0058] Specifically, the clamping end of the rotating member 103 penetrates into the gap between the fixed sleeve 101 and the positioning rod 102; at the same time, the abutting end of the rotating member 103 is located at the end of the fixed sleeve 101 and rotates along the end of the fixed sleeve 101; the clamping end of the rotating member 103 contacts the inner wall of the fixed sleeve 101, thereby ensuring that the rotation axis of the rotating member 103 does not change when the rotating member 103 rotates.

[0059] In this embodiment, the end of the rotating member 103 located inside the fixed sleeve 101 is connected to a reset member 104; during the pressing process, the reset member 104 is gradually compressed, and the reset member 104 can push the rotating member 103 to reset, thereby making it easier for the staff to operate again.

[0060] Specifically, the reset member 104 can be a metal spring or a spring; its elastic potential energy can be used to push the rotating member 103 to reset; one end of the reset member 104 contacts the rotating member 103, and the other end thereof contacts the inner wall of the fixed sleeve 101.

[0061] Furthermore, the pressing piece 106 is arranged inside the side wall of the fixed sleeve 101, and the pressing piece 106 moves along the vertical direction of the fixed sleeve 101 to push the extrusion piece 105 to move along the horizontal direction; in the process of pushing the pressing piece 103, the bottom of the pressing piece 103 contacts the top of the pressing piece 106, so that the extrusion piece 105 gathers toward the axial position of the fixed sleeve 101; the extrusion piece 105 pushes the rotating piece 103 to be tightly clamped on the outside of the positioning rod 102; the friction force between the contact position of the positioning rod 102 and the pressing piece 103 can limit the rotating piece 103.

[0062] The distance measuring unit 200 includes an encoder 201 , a distance measuring wheel 202 and a connecting rod 203 ; the distance measuring wheel 202 is connected to the encoder 201 , and the encoder 201 and the rotating member 103 are connected via the connecting rod 203 .

[0063] The connecting rod 203 is connected to the rotating member 103 by bolts, and the output end of the encoder 201 is connected to the distance measuring wheel 202; when the rotating member 103 is adjusted and rotated, the angle of the connecting rod 203 can be driven to change; thereby, the position between the distance measuring wheel 202 and the roof can be changed.

[0064] The distance that the measuring wheel 202 moves along the roof is converted into an electrical signal through the encoder 201; then the electrical signal transmitted by the encoder is continuously obtained through the control panel, and the electrical signal is analyzed to convert the actual running length value of the limit device of the quilt roll machine; and the program is used to judge that when the length value reaches the set quilt roll length, the control main board sends a stop command to the limit device of the quilt roll machine; and then the working position of the limit device of the quilt roll machine is controlled to achieve the purpose of limiting the limit device of the quilt roll machine.

[0065] In this embodiment, when in use, the pressing member 106 moves in the vertical direction under normal conditions, driving the extruding member 105 to move in the horizontal direction; under the elastic action of the pressing member 106, the extruding member 105 is pushed to move in the horizontal direction, and the end of the extruding member 105 contacts the outer wall of the rotating member 103, and the rotating member 103 contracts inward after being subjected to the force; thereby, the inner wall of the rotating member 103 is closely attached to the outer wall of the positioning rod 102, and the inner wall of the rotating member 103 contacts the outer wall of the positioning rod 102; the rotation member 103 is limited by the friction between the rotating member 103 and the positioning rod 102;

[0066] When it is necessary to twist the rotating member 103, the rotating member 103 is pressed down, and the end of the rotating member 103 is used to contact the end of the pressing member 106 and squeeze the pressing member 106; the pressing member 106 is pressed and moves in the vertical direction, while driving the squeezing member 105 to move in the horizontal direction; thereby, the end of the squeezing member 105 is moved away from the rotating member 103; the end of the rotating member 103 is moved away from the positioning rod 102 under the action of the rebound force, and at this time, the rotating member 103 can be twisted to drive the distance measuring wheel 202 to adjust the corresponding position.

[0067] In summary, a limiting method with an encoder as the core is adopted. The encoder converts the rotational displacement signal into an electrical signal. After moving to a predetermined distance, the control main board will control the motor to rotate, thereby realizing the limiting of the limiting device of the winding machine; at the same time, the angle adjustment unit can flexibly adjust the position of the distance measuring unit and the ceiling to ensure the accuracy of the signal transmitted by the encoder.

[0068] Example 2

[0069] Reference Figures 1 to 4 , which is the second embodiment of the present invention, includes a rotating member 103 including a pressing ring 103a, a clamping plate 103b arranged at the end of the pressing ring 103a, and a first limiting tooth 103c arranged on the inner wall of the clamping plate 103b; the number of the clamping plates 103b is multiple groups, and the multiple groups of clamping plates 103b are arranged in a circular array along the axis of the pressing ring 103a at its end; the number of the pressing rings 103a is multiple groups, and the multiple groups of pressing rings 103a are equidistantly distributed along the inner side of the clamping plate 103b; the side wall of the limiting end of the positioning rod 102 is provided with a second limiting tooth 102a adapted to the first limiting tooth 103c.

[0070] It should be noted that the pressing ring 103a is a circular ring structure that runs through the central position, and there are multiple groups of clamping plates 103b. There is a certain gap between the multiple groups of clamping plates 103b. After being compressed, the clamping plates 103b can be deformed; under normal conditions, the clamping plates 103b are in a truncated cone structure, and their bottom is an outwardly expanding trumpet-shaped structure. In this state, there is a certain distance between the clamping plates 103b and the positioning rod 102, and the torsional rotating member 103 is not restricted by the positioning rod 102.

[0071] Furthermore, a plurality of groups of second limiting teeth 102a are arranged on the outer side of the end of the positioning rod 102, tooth gaps are formed between adjacent second limiting teeth 102a, and the ends of the first limiting teeth 103c are inserted into the tooth gaps, so that the clamping plate 103b can be limited by the positioning rod 102.

[0072] Furthermore, an arc-shaped portion 103b-1 is provided at the connection position between the clamping plate 103b and the pressing ring 103a, and the clamping plate 103b is pressed so as to bend along the arc-shaped portion 103b-1.

[0073] Specifically, the wall thickness of the clamping plate 103b gradually increases from the pressing ring 103a to its farther end; after the outer wall of the clamping plate 103b is squeezed, the clamping plate 103b is deformed along the arc portion 103b-1; and then the inner wall of the clamping plate 103b moves toward the direction close to the positioning rod 102.

[0074] In this embodiment, the extrusion member 105 includes an extrusion plate 105a and a sliding block 105b; the extrusion plate 105a is connected to the sliding block 105b by bolts; the pressing member 106 includes a support rod 106a, an elastic member 106c sleeved on the outside of the support rod 106a, and a pressure plate 106b arranged at the end of the support rod 106a; one end of the elastic member 106c is connected to the pressure plate 106b; the support rod 106a is linked to the sliding block 105b; the bottom of the pressing ring 103a can contact the top of the support rod 106a.

[0075] Furthermore, the extrusion plate 105a is an arc-shaped plate structure, and the sliding block 105b is a circular structure; the extrusion plate 105a and the sliding block 105b are connected and fixed by bolt connection, which facilitates the assembly of the equipment during the assembly process; the support rod 106a is a rod-shaped structure, and the elastic member 106c is sleeved on the outside of the support rod 106a. After the support rod 106a is compressed, the end of the pressure plate 106b compresses the elastic member 106c.

[0076] Furthermore, the support rod 106a includes a guide rod 106a-1 arranged at its end; the sliding block 105b includes a slot 105b-1 opened at a central position, and a slide groove 105b-2 opened on the side wall of the slot 105b-1; the end of the support rod 106a is located on the inner side of the slot 105b-1, and the guide rod 106a-1 is adapted to the slide groove 105b-2; the movement of the support rod 106a along the vertical direction can drive the sliding block 105b to move along the horizontal direction.

[0077] Specifically, guide rods 106a-1 are arranged on both sides of the end of the support rod 106a close to the extrusion piece 105, and the guide rods 106a-1 are adapted to the slide groove 105b-2; it should be noted that the slide groove 105b-2 is arranged obliquely on the inner wall of the slot 105b-1; the movement of the guide rod 106a-1 in the vertical direction can drive the sliding block 105b to move in the horizontal direction; the space opened inside the sliding block 105b is larger than the end of the support rod 106a, and the sliding block 105b can provide a certain space for the movement of the support rod 106a.

[0078] Furthermore, the fixed sleeve 101 includes a mounting sleeve 101 b disposed on a side wall thereof; the pressing member 106 is located inside the mounting sleeve 101 b , and the extruding member 105 penetrates the side wall of the fixed sleeve 101 .

[0079] It should be noted that the interior of the mounting sleeve 101b is a hollow structure, and the end of the pressing piece 106 penetrates into the inner side of the mounting sleeve 101b; the end of the rotating piece 103 contacts the end of the support rod 106a and can squeeze the support rod 106a; and then the support rod 106a moves in the vertical direction to drive the extrusion piece 105 to move in the horizontal direction.

[0080] Furthermore, the fixed sleeve 101 also includes a screw sleeve 101a arranged inside the fixed sleeve 101, and the connecting end of the positioning rod 102 passes through the inner side of the screw sleeve 101a; the limiting end of the positioning rod 102 can conflict with the buckle portion 103b-2.

[0081] It should be noted that the internal thread structure inside the screw sleeve 101a is compatible with the external thread structure outside the end of the positioning rod 102; therefore, the positioning rod 102 can be fixed inside the fixed sleeve 101 through the threaded connection between the positioning rod 102 and the fixed sleeve 101.

[0082] In this embodiment, under normal conditions, the elastic force of the elastic member 106c pushes the pressure plate 106b to move, so that the support rod 106a moves in the vertical direction away from the extrusion member 105; the movement of the support rod 106a drives the guide rod 106a-1 set at its end to move along the internal track of the slide groove 105b-2; then the extrusion member 105 is pushed to move in the direction close to the positioning rod 102, and the end of the extrusion plate 105a squeezes the clamping plate 103b, so that the clamping plate 103b is deformed along the position of the arc portion 103b-1; the clamping plate 103b is transformed from a trumpet-shaped structure with an open bottom to a cylindrical structure, and its inner wall gradually clings to the outer wall of the positioning rod 102, so that the first limiting tooth 103c is inserted into the tooth gap of the adjacent second limiting tooth 102a, so that the rotating member 103 is limited by the second limiting tooth 102a, so that the rotating member 103 cannot be rotated;

[0083] When the rotating member 103 needs to be twisted, the rotating member 103 is pressed downward, so that the end of the pressing ring 103a contacts the end of the support rod 106a, and the pressure plate 106b is pushed downward to compress the elastic member 106c; as the support rod 106a moves in the vertical direction, the guide rod 106a-1 is driven to move along the track inside the slide groove 105b-2; as the support rod 106a moves in the vertical direction, the extrusion member 105 can be driven to move in the horizontal direction; then the end of the extrusion member 105 gradually moves away from the clamping plate 10 3b; the rear clamping plate 103b is deformed, so that the clamping plate 103b gradually moves away from the outer wall of the positioning rod 102, and there is a certain gap between the clamping plate 103b and the positioning rod 102, so that the rotating member 103 can be rotated; the end of the buckle part 103b-2 contacts with the positioning rod 102, and the buckle part 103b-2 is limited by the end of the positioning rod 102. At the same time, the pressing ring 103a can limit the support rod 106a, thereby ensuring that the pressing member 106 is located on the inner side of the installation sleeve 101b.

[0084] Furthermore, the connecting rod 203 includes a support plate 203a and a connecting buckle 203b; one end of the connecting buckle 203b is connected to the rotating member 103, and the other end thereof is connected to the support plate 203a; the distance measuring wheel 202 and the rotating member 103 are kept flush with each other through the connecting buckle 203b.

[0085] It should be noted that the connecting buckle 203b is a structure bent at 90 degrees; one end of the connecting buckle 203b is connected to the rotating member 103, and the other end of the connecting buckle 203b is connected to the support plate 203a; the connecting buckle 203b is an L-shaped structure, which can ensure that the end of the distance measuring wheel 202 is flush with the end of the rotating member 103, and then ensure that the rotation of the rotating member 103 can drive the distance measuring wheel 202 to rotate in the same plane.

[0086] Furthermore, when the quilt winding motor drives the winder 303 to move, the distance measuring wheel 202 connected to one side of the encoder 201 is driven to rotate, and the encoder 201 converts the rotational displacement signal into an electrical signal, and transmits it to the control main board through the signal line; the control main board receives the electrical signal from the encoder, analyzes the electrical signal, and converts it into the displacement length of the quilt winding machine limit device, and judges whether the displacement length reaches the set length value. If so, the control main board sends a stop command to the quilt winding motor.

[0087] Limit adjustment: When adjusting the limit of the limit device of the roll machine, first roll the limit device of the roll machine down to the appropriate lower limit, click the learning button of the control main board, and record the displacement length required to reach the lower limit; then start the limit device of the roll machine to roll it up, and when it reaches the appropriate upper limit, click the learning button of the control main board to record the displacement length required to reach the upper limit. The control main board records the displacement lengths of the upper and lower limits, and the limit adjustment is completed.

[0088] Example 3

[0089] Reference Figure 1 to Figure 4 , which is the third embodiment of the present invention, and this embodiment further provides a limiting device for a quilt rolling machine; it includes a winding unit 300, including a first connecting rod 301, a second connecting rod 302, a winder 303, a support leg 304, a roller 305 and a winding rod 306; the winder 303 is installed at one end of the first connecting rod 301; the other end of the first connecting rod 301 is hinged to the second connecting rod 302, the end of the second connecting rod 302 is connected to the support leg 304, the outer side of the bottom of the support leg 304 is provided with a roller 305, and the winding rod 306 passes through the output shaft of the winder 303 and extends to the outside thereof; the distance measuring unit 200 is installed on the side wall of the winder 303 through the angle adjustment unit 100.

[0090] It should be noted that the bending angle of the first connecting rod 301 is an obtuse angle, the second connecting rod 302 is fixed to the outside of the support leg 304 by a clamp buckle, and the angle between the support leg 304 and the second connecting rod 302 is at an obtuse angle; the roller 305 is rotatable at the bottom of the support leg 304, and the leg 304 can be supported by the roller 305, so that the movement of the winder 303 can drive the roller 305 to move, thereby ensuring that the support component moves with the winder 303.

[0091] Furthermore, the first connecting rod 301 includes a mounting plate 301a and a first hinged portion 301b; the second connecting rod 302 includes a second hinged portion 302a and a flange buckle 302b; the mounting plate 301a is connected to the winder 303, and the first hinged portion 301b is hinged to the second hinged portion 302a; the second connecting rod 302 is connected to the support leg 304 through the flange buckle 302b; the roller 305 is movably connected to the support leg 304.

[0092] It should be noted that the flange buckle 302b is fixedly connected to the support leg 304 by bolts. During the installation of the flange buckle 302b, the angle between the support leg 304 and the second connecting rod 302 is an obtuse angle; thereby ensuring that the structure of the equipment is more stable during the driving process; and the second connecting rod 302 is hinged to the first connecting rod 301, and the hinged structure can be better adapted to the bent structure of the greenhouse roof, and better facilitate the operation of the limiting device of the quilt rolling machine; the winder 303 is driven by a motor-driven pulley; thereby, the winding rod 306 can drive the covering quilt to be rolled up.

[0093] Encoder principle: Convert the displacement signal of the winding machine limit device into a periodic electrical signal, and then convert the electrical signal into counting pulses, and use the number of pulses to represent the size of the displacement.

[0094] Operation mechanism: When the quilt winding machine limit device starts running, it drives the encoder to rotate, and the encoder converts the rotational displacement signal into an electrical signal; the control main board continuously obtains the electrical signal transmitted by the encoder through the encoder data acquisition interface, and analyzes the electrical signal and converts it into the running length value of the quilt winding machine limit device. It is judged through the program. When the length value reaches the set quilt winding length, the control main board sends a stop command to the quilt winding machine limit device.

[0095] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An angle adjustment mechanism, characterized in that: include, An angle adjustment unit (100) comprises a fixed sleeve (101), a positioning rod (102) coaxially arranged with the fixed sleeve (101), a rotating member (103) arranged between the fixed sleeve (101) and the positioning rod (102), a reset member (104) arranged at the bottom of the rotating member (103), an extrusion member (105) arranged on the side wall of the fixed sleeve (101), and a pressing member (106) for pushing the extrusion member (105) close to the rotating member (103); The extruding member (105) can push the rotating member (103) to come into conflict with the positioning rod (102), thereby limiting the position of the rotating member (103), and; The distance measuring unit (200) comprises an encoder (201), a distance measuring wheel (202) connected to the encoder (201), and a connecting rod (203) used for connecting the encoder (201) and the rotating member (103).

2. The angle adjustment mechanism according to claim 1, characterized in that: The rotating member (103) comprises a pressing ring (103a), a clamping plate (103b) and a first limiting tooth (103c); The clamping plates (103b) are arranged in a circular array along the axis of the pressing ring (103a) at its end; The pressing rings (103a) are provided in a plurality of groups, and the plurality of groups of pressing rings (103a) are evenly distributed along the inner side of the clamping plate (103b); The side wall of the limiting end of the positioning rod (102) is provided with a second limiting tooth (102a) adapted to the first limiting tooth (103c).

3. The angle adjustment mechanism according to claim 2, characterized in that: The clamping plate (103b) comprises an arc-shaped portion (103b-1) and a buckle portion (103b-2); The arc-shaped portion (103b-1) is located at the connection position between the clamping plate (103b) and the pressing ring (103a), and the clamping plate (103b) is pressed to bend along the arc-shaped portion (103b-1).

4. The angle adjustment mechanism according to claim 2 or 3, characterized in that: The extrusion member (105) comprises an extrusion plate (105a) and a sliding block (105b); The extrusion plate (105a) is connected to the sliding block (105b); The pressing member (106) comprises a support rod (106a), a pressing plate (106b) and an elastic member (106c); The elastic member (106c) is sleeved on the outside of the support rod (106a), and one end of the elastic member (106c) is connected to the pressure plate (106b); The support rod (106a) is linked to the sliding block (105b); The bottom of the pressing ring (103a) can contact the top of the support rod (106a).

5. The angle adjustment mechanism according to claim 4, characterized in that: The support rod (106a) comprises a guide rod (106a-1) arranged at an end thereof; The sliding block (105b) comprises a notch (105b-1) opened at a central position, and a sliding groove (105b-2) opened on a side wall of the notch (105b-1); The end of the support rod (106a) is located inside the notch (105b-1), and the guide rod (106a-1) is adapted to the slide groove (105b-2); The support rod (106a) can move in the vertical direction and drive the sliding block (105b) to move in the horizontal direction.

6. The angle adjustment mechanism according to any one of claims 1, 2, 3 or 5, characterized in that: The fixed sleeve (101) comprises a mounting sleeve (101b) arranged on a side wall thereof; The pressing piece (106) is located inside the installation sleeve (101b), and the extrusion piece (105) is penetrated through the side wall of the fixing sleeve (101).

7. The angle adjustment mechanism according to claim 3, characterized in that: The fixed sleeve (101) further comprises a screw sleeve (101a) arranged inside the fixed sleeve, and the connection end of the positioning rod (102) passes through the inner side of the screw sleeve (101a); The limiting end of the positioning rod (102) can conflict with the buckle portion (103b-2).

8. The angle adjustment mechanism according to any one of claims 1, 2, 3, 5 or 7, characterized in that: The connecting rod member (203) comprises a supporting plate (203a) and a connecting buckle (203b); One end of the connecting buckle (203b) is connected to the rotating member (103), and the other end thereof is connected to the supporting plate (203a); The distance measuring wheel (202) and the rotating member (103) are kept flush with each other at their ends via the connecting buckle (203b).

9. A limiting device for a quilt rolling machine, characterized in that: comprising the angle adjustment mechanism according to any one of claims 1 to 8; and A winding unit (300) comprises a first connecting rod (301), a winding device (303) arranged at one end of the first connecting rod (301), a second connecting rod (302) arranged at the other end of the first connecting rod (301) and hinged thereto, a supporting leg (304) arranged at the end of the second connecting rod (302), a roller (305) arranged at the bottom of the supporting leg (304), and a winding rod (306) arranged to pass through the winding device (303); The distance measuring unit (200) is installed on the side wall of the reel (303) via the angle adjustment unit (100).

10. The limiting device for a quilt rolling machine according to claim 9, characterized in that: The first connecting rod (301) comprises a mounting plate (301a) and a first hinged portion (301b); The second connecting rod (302) comprises a second hinged portion (302a) and a flange buckle (302b); The mounting plate (301a) is connected to the reel (303), and the first hinged portion (301b) is hinged to the second hinged portion (302a); The second connecting rod (302) is connected to the supporting leg (304) via the flange buckle (302b); The roller (305) is movably connected to the supporting leg (304).

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