Anti-reverse mechanism for drip irrigation tape of seeding machine

Abstract

The utility model relates to the technical field of drip irrigation belts, in particular to a reverse rotation preventing mechanism for a drip irrigation belt of a seeder, which comprises a drip irrigation belt frame, a reverse rotation limiting component is arranged on the inner side of a limiting disc, a convex tooth sheet is fixedly sleeved outside a transmission connecting rod, and an overrun clutch is fixedly connected to the front end of the transmission connecting rod. According to the anti-reverse mechanism for the drip irrigation belt of the seeder, the shaft barrel seat wound with the drip irrigation belt hose is mounted on the rotating shaft rod on the inner side of the shaft bracket, the transmission connecting rod is driven to enable the rotating shaft rod to drive the shaft barrel seat to rotate forwards, at the moment, the convex tooth piece rotates along with the transmission connecting rod and extrudes the latch piece forwards, and the torsion spring piece drives the latch piece to deflect and break away from the positioning piece; and when the rotating shaft rod and the shaft barrel seat generate a reverse rotation trend, the convex tooth sheet is reversely clamped with the clamping tooth sheet at the moment, reverse rotation is limited by the clamping tooth sheet and the positioning sheet, and meanwhile, the transmission connecting rod can only rotate in one direction in cooperation with the overrun clutch, so that the situation that the drip irrigation belt assembly is reversely rotated due to inertia influence is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to drip irrigation tape technical field, concretely is a seeding machine drip irrigation tape anti -reversal mechanism. BACKGROUND

[0002] Drip irrigation tape is the drip irrigation pipe that utilizes plastic pipeline structure to send water to crop root part through the orifice or dripper of about 10mm in diameter on the capillary pipe and carries out local irrigation, and water is dropped in the soil near the crop root part through the very small outlet orifice or drip irrigation tape, drop by drop, evenly and slowly, to realize the drip irrigation effect, especially in the process of sowing of the seeding machine, the drip irrigation tape can reach the effect of local irrigation to the crop root part, thereby greatly saving the irrigation water required for crop planting.

[0003] But the drip irrigation tape frame on the market mostly is through drive cylinder frame structure, and the rolled drip irrigation pipe is laid, and part drip irrigation tape frame structure lacks anti-reversal mechanism, and in combination with prior art patent, according to the utility model patent with patent publication number CN219437797U, a drip irrigation tape laying mechanism of corn seeding machine is disclosed, the drip irrigation tape laying mechanism of the corn seeding machine is through the drip irrigation tape traction to the bottom of the positioning wheel on the drip irrigation tape roller, and is laid on the ground, but the drip irrigation tape roller also lacks anti-reversal mechanism, in the process of laying drip irrigation tape, the drip irrigation tape roller is due to the operation of frequent start and stop of the seeding machine equipment, can cause the reverse of drip irrigation tape assembly affected by inertia, at this time, the water pipe of drip irrigation tape is subjected to the tensile force of sudden application and is easy to cause the water pipe to break, influence the laying efficiency of drip irrigation pipe.

[0004] Therefore, in order to solve the problem that the drip irrigation tape is easy to break under the reverse tension, a seeding machine drip irrigation tape anti-reversal mechanism is provided. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a seeding machine drip irrigation tape anti-reversal mechanism, which has the advantages of preventing the reverse of the drip irrigation tape assembly affected by inertia, solving the reverse of the existing drip irrigation tape assembly affected by inertia in the above background technology, and the problem of easy breakage of the drip irrigation pipe due to sudden pulling.

[0006] To achieve the above object, the utility model provides the following technical scheme: a seeding machine drip irrigation tape anti-reversal mechanism, comprising a drip irrigation tape frame composed of an arm lever and a rotating shaft frame, the front surface of the rotating shaft frame is provided with an anti-reversal structure;

[0007] The anti-reverse structure comprises a mounting box fixedly connected with the front surface of the shaft frame, a limiting disc fixedly connected with the inner rear wall of the mounting box, an anti-reverse limiting assembly arranged on the inner side of the limiting disc, a transmission connecting rod rotationally connected with the inner side of the limiting disc, a convex tooth piece fixedly sleeved with the outer part of the transmission connecting rod, an overrunning clutch fixedly connected with the front end of the transmission connecting rod, and a pin shaft rod inserted into the inner side of the overrunning clutch.

[0008] The anti-reverse limiting assembly comprises a plurality of positioning pieces arranged in an annular array on the inner side of the limiting disc, a torsional spring piece movably connected with the top of each positioning piece, and a clamping tooth piece fixedly connected with the outer side of each torsional spring piece.

[0009] Further, the inner side of the shaft frame is rotationally connected with a shaft rod, the outer side of the shaft rod is coaxially sleeved with a shaft cylinder seat, the front end and the rear end of the outer side of the shaft cylinder seat are both threadedly connected with a D-shaped pin, and the front end and the rear end of the outer side of the shaft rod are both provided with a No. 1 pin hole matched with the D-shaped pin.

[0010] Further, the inner rear wall of the limiting disc is provided with a circular groove, the rear end of the transmission connecting rod penetrates through the circular groove and is coaxially fixed with the front end of the shaft rod.

[0011] Further, one side of the clamping tooth piece is in abutting contact with the positioning piece, and the convex tooth piece is located on the inner side of the limiting disc and is in clamping contact with one of the clamping tooth pieces.

[0012] Further, the inner front wall of the limiting disc is provided with a notch, the front end of the transmission connecting rod penetrates through the notch and is connected with the inner side of the overrunning clutch, and the inner side of the overrunning clutch is a through structure.

[0013] Further, the front end of the transmission connecting rod is provided with a No. 2 pin hole, and the rear end of the pin shaft rod is threadedly connected with the inner part of the No. 2 pin hole.

[0014] Advantages

[0015] Compared with the prior art, the technical scheme has the following advantages:

[0016] The anti-reverse mechanism of the seeding machine drip irrigation belt is installed on the shaft rod on the inner side of the shaft frame, the transmission connecting rod is driven to make the shaft rod drive the shaft cylinder seat to rotate forward, the drip irrigation belt hose is laid, at this time, the convex tooth piece rotates with the transmission connecting rod and positively extrudes the clamping tooth piece, the torsional spring piece drives the clamping tooth piece to deflect and separate from the positioning piece, the transmission connecting rod is normally rotated, when the driving is stopped, the shaft rod and the shaft cylinder seat will have a reverse trend, at this time, the convex tooth piece reversely clamps the clamping tooth piece, the clamping tooth piece and the positioning piece limit the reverse rotation of the transmission connecting rod, and the overrunning clutch ensures that the transmission connecting rod can only rotate in one direction, so that the reverse rotation of the drip irrigation belt assembly caused by inertia is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a drip irrigation tape rack structure schematic diagram of the utility model;

[0018] Figure 2 It is Figure 1 The perspective view of the installation box structure;

[0019] Figure 3 It is Figure 2 The perspective view of the installation box structure;

[0020] Figure 4 It is Figure 3 The schematic diagram of the reverse limiting component structure in the perspective view;

[0021] Figure 5 It is Figure 1 The perspective view of the shaft cylinder seat.

[0022] In the drawing: 1, drip irrigation tape rack; 101, arm rod; 102, rotating shaft frame; 2, anti-reverse structure; 201, installation box; 202, limiting disc; 203, reverse limiting component; 2031, positioning sheet; 2032, torsion spring piece; 2033, clamping tooth sheet; 204, transmission connecting rod; 205, convex tooth sheet; 206, overrunning clutch; 207, pin shaft rod; 3, rotating shaft rod; 4, shaft cylinder seat; 5, D-shaped pin. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-5 A kind of anti-reverse mechanism of seeding machine drip irrigation tape, including drip irrigation tape rack 1 by arm rod 101 and rotating shaft frame 102, the front of rotating shaft frame 102 is provided with anti-reverse structure 2, the inner side of rotating shaft frame 102 is rotatably connected with rotating shaft rod 3, the outer side of rotating shaft rod 3 is coaxially sleeved with shaft cylinder seat 4, rotating shaft rod 3 drives shaft cylinder seat 4 to rotate, the outer side of the front end of shaft cylinder seat 4 and the outer side of rear end are all screw-connected with D-shaped pin 5, D-shaped pin 5 is used to fix shaft cylinder seat 4 on rotating shaft rod 3.

[0025] The anti-reverse structure 2 comprises a mounting box 201 fixedly connected with the rotation shaft frame 102, the inner rear wall of the mounting box 201 is fixedly connected with a limiting disc 202, the inner side of the limiting disc 202 is provided with an anti-reverse limiting assembly 203, the inner side of the limiting disc 202 is rotationally connected with a transmission connecting rod 204, the outer part of the transmission connecting rod 204 is fixedly sleeved with a convex tooth piece 205, the front end of the transmission connecting rod 204 is fixedly connected with an overrunning clutch 206 in contact with the toothed piece 2033, the overrunning clutch 206 can realize the effect of separating the driving power from the transmission connecting rod 204, so as to inhibit the reverse rotation of the rotation shaft rod 3, and the inner side of the overrunning clutch 206 is inserted with a pin shaft rod 207.

[0026] In the implementation, the following steps are performed:

[0027] 1) First, drive the transmission connecting rod 204 to make the rotation shaft rod 3 drive the shaft cylinder seat 4 to rotate forward, so that the transmission connecting rod 204 drives the convex tooth piece 205 to press the toothed piece 2033 forward;

[0028] 2) Then, the toothed piece 2033 is deflected away from the positioning piece 2031 by the torsion spring 2032, and the limiting of the convex tooth piece 205 is lost;

[0029] 3) Then, the transmission connecting rod 204 drives the convex tooth piece 205 to press the toothed piece 2033 reversely by reverse rotation of the rotation shaft rod 3 driving the shaft cylinder seat 4;

[0030] 4) Finally, the toothed piece 2033 is abutted against the positioning piece 2031, and the convex tooth piece 205 is limited to be unable to rotate reversely.

[0031] According to Figure 1 and Figure 5 , the front and rear ends of the shaft cylinder seat 4 are sleeved outside the rotation shaft rod 3, and then the D-shaped pin 5 is inserted into the first pin hole to fix the shaft cylinder seat 4 on the rotation shaft rod 3.

[0032] According to Figure 5 , the rear end of the transmission connecting rod 204 is connected with the front end of the rotation shaft rod 3, the transmission connecting rod 204 penetrates into the inner side of the overrunning clutch 206, and the overrunning clutch 206 is fixed with the front end of the transmission connecting rod 204 by inserting the pin shaft rod 207 into the second pin hole.

[0033] According to Figure 4 , when the transmission connecting rod 204 and the rotation shaft rod 3 rotate forward, the convex tooth piece 205 rotates with the transmission connecting rod 204, at this time, the convex tooth piece 205 will press the toothed piece 2033 forward, under the torsional activity of the torsion spring 2032, the toothed piece 2033 is deflected along the positioning piece 2031 as the axis, loses the limiting effect on the convex tooth piece 205, at this time, the convex tooth piece 205, the transmission connecting rod 204 and the rotation shaft rod 3 can normally rotate;

[0034] When the transmission connecting rod 204 and the rotating shaft rod 3 rotate reversely, the convex tooth piece 205 rotates reversely with the transmission connecting rod 204, at this time, the convex tooth piece 205 reversely contacts and extrudes the clamping tooth piece 2033, the positioning piece 2031 side abuts against the clamping tooth piece 2033 to limit, causing the clamping tooth piece 2033 unable to deflect, thereby guaranteeing the limiting effect on the convex tooth piece 205, at this time, the convex tooth piece 205, the transmission connecting rod 204 and the rotating shaft rod 3 are unable to rotate.

[0035] In summary, the anti-reverse mechanism of the drip irrigation belt seeder installs the shaft cylinder seat 4 winding with the drip irrigation belt hose on the rotating shaft rod 3 inside the shaft support 102, drives the transmission connecting rod 204 to make the rotating shaft rod 3 drive the shaft cylinder seat 4 to rotate positively, applies and lays the drip irrigation belt hose, at this time, the convex tooth piece 205 rotates with the transmission connecting rod 204 and extrudes the clamping tooth piece 2033 positively, the torsion spring 2032 drives the clamping tooth piece 2033 to deflect and separate from the positioning piece 2031, guaranteeing the normal rotation of the transmission connecting rod 204, when stopping driving, the rotating shaft rod 3 and the shaft cylinder seat 4 will have a reverse tendency, at this time, the convex tooth piece 205 reversely engages the clamping tooth piece 2033, the clamping tooth piece 2033 and the positioning piece 2031 limit the reverse rotation of the transmission connecting rod 204, at the same time, cooperates with the overrunning clutch 206 to guarantee that the transmission connecting rod 204 can only rotate in one direction, thereby preventing the reverse rotation of the drip irrigation belt assembly affected by inertia, solving the reverse rotation of the existing drip irrigation belt assembly affected by inertia in the above background art, and the problem of easy breakage of the drip irrigation belt pipeline caused by sudden pulling.

[0036] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drip irrigation tape anti-reverse mechanism for a seeding machine, comprising a drip irrigation tape rack (1) composed of an arm rod (101) and a rotating shaft rack (102), characterized in that: The front surface of the rotating shaft frame (102) is provided with an anti-reverse structure (2); The anti-reverse structure (2) comprises a mounting box (201) fixedly connected with the front surface of the rotating shaft frame (102), the inner rear wall of the mounting box (201) is fixedly connected with a limiting disc (202), the inner side of the limiting disc (202) is provided with a reverse limiting assembly (203), the inner side of the limiting disc (202) is rotatably connected with a transmission connecting rod (204), the outer side of the transmission connecting rod (204) is fixedly sleeved with a convex tooth piece (205), the front end of the transmission connecting rod (204) is fixedly connected with an overrunning clutch (206), and the inner side of the overrunning clutch (206) is inserted with a pin shaft rod (207). The reverse limiting assembly (203) comprises a plurality of positioning pieces (2031) arranged in an annular array on the inner side of the limiting disc (202), the top of each positioning piece (2031) is movably connected with a torsion spring piece (2032), and the outer side of each torsion spring piece (2032) is fixedly connected with a clamping tooth piece (2033).

2. The anti-reverse rotation mechanism for a drip irrigation tape of a seeding machine according to claim 1, characterized in that: The inner side of the rotating shaft frame (102) is rotatably connected with a rotating shaft rod (3), the outer side of the rotating shaft rod (3) is coaxially sleeved with a shaft cylinder seat (4), the front end and the rear end of the outer side of the shaft cylinder seat (4) are both threadedly connected with a D-shaped pin (5), and the front end and the rear end of the outer side of the rotating shaft rod (3) are both provided with a first pin hole matched with the D-shaped pin (5).

3. The anti-reverse rotation mechanism for a drip irrigation tape of a seeding machine according to claim 1, characterized in that: The inner rear wall of the limiting disc (202) is provided with a circular groove, and the rear end of the transmission connecting rod (204) penetrates through the circular groove and is coaxially fixed with the front end of the rotating shaft rod (3).

4. The anti-reverse rotation mechanism for a drip irrigation tape of a seeding machine according to claim 1, characterized in that: One side of the clamping tooth piece (2033) is in abutting contact with the positioning piece (2031), and the convex tooth piece (205) is located on the inner side of the limiting disc (202) and is in clamping contact with one of the clamping tooth pieces (2033).

5. The anti-reverse rotation mechanism for a drip irrigation tape of a seeding machine according to claim 1, characterized in that: The inner front wall of the limiting disc (202) is provided with a slot, the front end of the transmission connecting rod (204) penetrates through the slot and is connected with the inner side of the overrunning clutch (206), and the inner side of the overrunning clutch (206) is a through structure.

6. The anti-reverse rotation mechanism for a drip irrigation tape of a seeding machine according to claim 1, characterized in that: The front end of the transmission connecting rod (204) is provided with a second pin hole, and the rear end of the pin shaft rod (207) is threadedly connected with the inner side of the second pin hole.

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