CN110319288B - Self-propelled agricultural machine for irrigation prevents breaking device - Google Patents
Self-propelled agricultural machine for irrigation prevents breaking device Download PDFInfo
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- CN110319288B CN110319288B CN201910596631.7A CN201910596631A CN110319288B CN 110319288 B CN110319288 B CN 110319288B CN 201910596631 A CN201910596631 A CN 201910596631A CN 110319288 B CN110319288 B CN 110319288B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
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Abstract
The invention relates to the field of agricultural irrigation machinery and equipment, and discloses a self-propelled irrigation agricultural machinery anti-snapping device, which comprises a left valve body, a right valve body and a valve core mechanism, wherein the valve core mechanism is arranged in the inner cavities of the left valve body and the right valve body oppositely; rotatable steel balls are placed in the steel ball placing holes in the tubular joints; the locking ring is fixedly connected with the tubular joint through a screw, can rotate and can be locked by a locking mechanism to be non-rotatable; the inner ring of the locking ring is provided with an arc-shaped groove corresponding to the position of the steel ball, and the radian radius of the arc-shaped groove is gradually increased along the clockwise direction; the upper ends of the steel balls are abutted against the arc-shaped groove, and the lower ends of the steel balls can be embedded into the annular groove. The problem of current agricultural machine for self-propelled irrigation in-process, probably because the driver's of walking equipment negligence leads to on the capstan winch delivery pipe to be dragged by walking equipment after putting up to lead to the fracture damage is solved.
Description
Technical Field
The invention relates to the field of agricultural irrigation machinery, in particular to a self-propelled irrigation agricultural machinery anti-breaking device.
Background
When irrigation work is carried out on agricultural cultivation areas, it is difficult for a single fixed-point irrigation device to completely cover the whole cultivation area. In order to completely irrigate, a plurality of fixed-point irrigation devices have to be distributed on a cultivated area, and the irrigation mode not only increases the production cost of cultivators, but also causes low utilization rate of the irrigation devices due to the inconvenience in moving the fixed-point irrigation devices. In order to solve the problems, a self-propelled irrigation machine is provided, the self-propelled irrigation machine mostly connects sprinkling irrigation equipment with a tractor and other walking machines, the sprinkling irrigation equipment is driven by the driving tractor to move around a farming area, and the farming area is irrigated by the sprinkling irrigation equipment. The sprinkling irrigation mode is adopted to directly spray water to areas such as branches and leaves of crops, so that the soil moisture can be increased, the air humidity can be improved, and the local microclimate can be adjusted.
The self-propelled irrigation machine can meet the use requirement of the whole cultivation area by only one set of sprinkling irrigation equipment, the production cost of cultivators is reduced, and the self-propelled irrigation machine has high flexibility and can meet the use requirements of different irrigation environments. During use of self-propelled irrigation machines, in order to supply sprinkler irrigation equipment, winches are generally used, which can be placed on the ground or moved together with the sprinkler irrigation equipment. Along with the continuous removal of self-propelled irrigation equipment, the capstan winch rotates and puts down the delivery pipe extension water supply distance from the capstan winch to this supplies water to sprinkling irrigation equipment.
However, in the actual irrigation process, because the length of the water supply pipe on the winch is limited, after the water supply pipe on the winch is completely put down, the tractor driver can still drive forwards without noticing that the water supply pipe is put down. At this time, the huge pulling force of the vehicle may cause the water supply pipe to be broken, and after the water supply pipe is broken, the repair is inconvenient, so that the irrigation operation is delayed, and partial water resource waste is caused. There is also a case where the water supply pipe is not broken, but the winch is pulled by the water supply pipe to tilt the winch, which may cause damage to the winch and a safety accident.
Disclosure of Invention
Based on the technical problems, the invention provides a pulling-off prevention device for a self-propelled irrigation agricultural machine, which solves the problem that in the irrigation process of the existing self-propelled irrigation agricultural machine, a water supply pipe on a winch is pulled by a walking device after being discharged due to carelessness of a driver of the walking device, so that the water supply pipe is broken and damaged.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a self-propelled agricultural machinery breaking-preventing device for irrigation comprises a left valve body, a right valve body and a valve core mechanism, wherein inner cavities of the left valve body and the right valve body are oppositely arranged, and mounting flanges are arranged at the left end of the left valve body and the right end of the right valve body; the left end of the right valve body is provided with a tubular joint, and the right end of the left valve body is inserted into an inner hole of the tubular joint and is communicated with the left end of the right valve body in an abutting mode; a plurality of steel ball placing holes are arranged on the tubular joint in a surrounding manner, and rotatable steel balls are placed in the steel ball placing holes; the tubular joint is sequentially provided with a locking ring, a locking ring and a limiting ring from left to right, the locking ring is fixedly connected with the tubular joint through a screw, and the locking ring can rotate and can be locked by a locking mechanism to be incapable of rotating; the inner ring of the locking ring is provided with an arc-shaped groove corresponding to the position of the steel ball, and the radian radius of the arc-shaped groove is gradually increased along the clockwise direction; the upper ends of the steel balls are abutted against the arc-shaped groove, the lower ends of the steel balls can be embedded into an annular groove arranged on the outer side of the right end of the left valve body, and the annular groove is arc-shaped.
When the anti-breaking device is installed and used, the left valve body and the right valve body are respectively communicated with a water supply pipe and a water supply connector in a butt joint mode through the installation flange, the right end of the left valve body is inserted into the inner hole of the tubular connector and abuts against the left end of the right valve body to enable the left valve body and the right valve body to be connected in a butt joint mode, at the moment, the valve core mechanisms of the left valve body and the right valve body are in an open state, and the left valve body and the right. And the locking ring is rotated clockwise, so that the radius of the arc surface of the arc-shaped groove in contact with the steel balls is gradually reduced, and the steel balls are gradually embedded into the annular groove formed in the outer side of the right end of the left valve body downwards so as to connect the left valve body and the right valve body together. When the connection is completed, the locking mechanism can lock the locking ring to prevent the locking ring from rotating, and the phenomenon that the locking ring rotates accidentally to separate the left valve body from the right valve body in daily use is avoided. When the tractor pulls the water supply pipe, the anti-breaking mechanism is subjected to a certain external pulling force, and the breaking force between the left valve body and the right valve body is smaller than the force required by the breaking of the water supply pipe. Before the water supply pipe is pulled and broken, the steel balls can roll to be separated from the annular groove, so that the left valve body and the right valve body are disconnected, and the left valve body and the right valve body are plugged by the valve core mechanism in the left valve body and the right valve body in a closed mode, so that water flow leakage is avoided, and water resources are saved. After the left valve body and the right valve body are disconnected, the anti-breaking mechanism can be reassembled for use again according to installation operation steps, and the problem that irrigation is delayed due to the fact that a water supply pipe is damaged is solved.
As a preferable mode, the locking mechanism includes an arc concave hole formed in an inner side surface of the locking ring and a clamping hole formed in a side surface of the locking ring, a clamping column and a first compression spring are arranged in the clamping hole, one end of the first compression spring abuts against a tail end of the clamping column and the other end abuts against an inner wall of a bottom end of the clamping hole, and a front end of the clamping column is arc-shaped and can be embedded into the arc concave hole.
As a preferred mode, the tail end of the clamping column is provided with a limiting column, and the limiting column is sleeved into the inner ring of the first compression spring.
As a preferable mode, the valve core mechanism comprises a support arranged in the inner cavity of the valve body, a central through hole is arranged in the center of the support, and the support is provided with a flow hole for water flow to pass through; a guide rod is fixed in the central through hole, a second compression spring is sleeved on the guide rod, the guide rod is arranged in the guide hole of the valve clack, and one end of the second compression spring abuts against the support, while the other end is positioned in the guide hole and abuts against the valve clack.
As a preferred mode, the guide rod comprises a guide part, a shaft shoulder and a fixing part, the end head of the fixing part is provided with threads, and the guide rod is clamped and fixed on the support through the shaft shoulder and the locking nut.
As a preferred mode, the valve clack and the valve body binding face are provided with a first sealing rubber ring.
Preferably, the number of the steel balls is at least 3, and the steel balls are distributed around the tubular joint at equal intervals.
As a preferred mode, the right end surface of the left valve body is provided with a second sealing rubber ring.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention solves the problem that in the irrigation process of the existing agricultural machinery for self-propelled irrigation, the water supply pipe on the winch is pulled by the walking equipment after being completely put due to carelessness of a driver of the walking equipment, so that the water supply pipe is broken and damaged.
(2) According to the invention, through the locking mechanism, the locking mechanism can lock the locking ring to prevent the locking ring from rotating, so that the left valve body and the right valve body are prevented from being accidentally separated due to loosening and rotation of the locking ring in daily use. In addition, the arc-shaped clamping column can be clamped into the arc-shaped concave hole more smoothly.
(3) According to the invention, the limiting column is arranged at the tail end of the clamping column, the limiting column is sleeved in the inner ring of the first compression spring, and the limiting column can guide the clamping column, so that the clamping column can stretch stably, and the clamping column is prevented from jumping.
(4) According to the invention, through the valve core mechanism, the valve core mechanism can ensure that the left valve body and the right valve body are communicated when the breaking valve works normally, and the left valve body and the right valve body are blocked at the moment of breaking to ensure no leakage, so that normal water supply can be ensured, and waste of water resources can be avoided when the breaking valve is broken.
(5) According to the invention, the guide rod comprises the guide part, the shaft shoulder and the mounting part, the end of the mounting part is provided with the thread, and the guide rod is clamped and fixed on the support through the shaft shoulder and the locking nut, so that the valve core mechanism is convenient to mount.
(6) According to the invention, the first sealing rubber ring is arranged on the joint surface of the valve clack and the valve body, and when the valve clack and the valve body are jointed to block the valve body, the first sealing rubber ring can enhance the sealing property and avoid leakage.
(7) According to the invention, at least 3 steel balls are distributed around the tubular joint at equal intervals, and the left valve body and the right valve body ensure the butt joint stability.
(8) According to the invention, the second sealing rubber ring is arranged on the right end surface of the left valve body, and when the left valve body is in butt joint with the right valve body, the second sealing rubber ring can enhance the sealing property of the joint of the left valve body and the right valve body, so that leakage is avoided.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a sectional view taken along the plane a-a in fig. 1.
Fig. 4 is a sectional view taken along the plane B-B in fig. 1.
Fig. 5 is a cross-sectional view taken along plane C-C of fig. 1.
Fig. 6 is a schematic structural diagram of the left valve body and the right valve body when disconnected.
Fig. 7 is a schematic view of the structure of the guide bar.
The valve body comprises a mounting flange 1, a left valve body 2, a right valve body 3, a support 4, a flow hole 5, a locking nut 6, a guide rod 7, a guide part 701, a shaft shoulder 702, an installation part 703, a second compression spring 8, a valve clack 9, a first sealing rubber ring 10, a limiting ring 11, a locking ring 12, a second sealing rubber ring 13, a first compression spring 14, a steel ball 15, a tubular joint 16, a locking ring 17, a clamping column 18, a limiting column 19, a screw 20, an arc-shaped groove 21, an annular groove 22 and an arc-shaped concave hole 23.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
Example 1:
referring to fig. 1-5, the anti-breaking device of the self-propelled irrigation agricultural machine comprises a left valve body 2, a right valve body 3 and a valve core mechanism, wherein inner cavities of the left valve body and the right valve body are oppositely arranged, and mounting flanges 1 are arranged at the left end of the left valve body 2 and the right end of the right valve body 3; the left end of the right valve body 3 is provided with a tubular joint 16, and the right end of the left valve body 2 is inserted into an inner hole of the tubular joint 16 and is communicated with the left end of the right valve body 3 in an abutting mode; a plurality of steel ball placing holes are arranged on the tubular joint 16 in a surrounding manner, and rotatable steel balls 15 are placed in the steel ball placing holes; the tubular joint 16 is sequentially provided with a locking ring 17, a locking ring 12 and a limiting ring 11 from left to right, the locking ring 17 is fixedly connected with the tubular joint 16 through a screw 20, and the locking ring 12 can rotate and can be locked by a locking mechanism to be non-rotatable; an arc-shaped groove 21 corresponding to the steel ball 15 is arranged on the inner ring of the locking ring 12, and the radian radius of the arc-shaped groove 21 is gradually increased along the clockwise direction; the upper end of the steel ball 15 is abutted against the arc-shaped groove 21, the lower end of the steel ball can be embedded into an annular groove 22 arranged on the outer side of the right end of the left valve body 2, and the annular groove 22 is arc-shaped.
In this embodiment, when the anti-snapping device is installed and used, the left valve body 2 and the right valve body 3 are respectively in butt joint communication with a water supply pipe and a water supply connector through the mounting flange 1, the right end of the left valve body 2 is inserted into the inner hole of the tubular connector 16 and abuts against the left end of the right valve body 3 to enable the left valve body 2 and the right valve body 3 to be connected in an abutting manner, at this time, the valve core mechanisms of the left valve body 2 and the right valve body 3 are in an open state, and the left valve body 2 and the right valve. The locking ring 12 is rotated clockwise so as to gradually reduce the radius of the arc surface of the arc-shaped groove 21 contacting with the steel ball 15, and thus the steel ball 15 is gradually embedded downwards into the annular groove 22 arranged at the outer side of the right end of the left valve body 2 so as to connect the left valve body 2 and the right valve body 3 together. When the connection is completed, the locking mechanism can lock the locking ring 12 to make it non-rotatable, so as to prevent the locking ring 12 from accidentally rotating to separate the left valve body 2 and the right valve body 3 in daily use. When the tractor pulls the water supply pipe, the anti-breaking mechanism is subjected to a certain external pulling force, and the breaking force between the left valve body 2 and the right valve body 3 is smaller than the force required by the breaking of the water supply pipe. Before the water supply pipe is pulled to be broken, the steel balls 15 can roll to be separated from the annular groove 22, so that the left valve body 2 and the right valve body 3 are disconnected, and at the moment, the valve core mechanisms in the left valve body 2 and the right valve body 3 are closed to block the left valve body 2 and the right valve body 3, so that water flow leakage is avoided, and water resources are saved. After the left valve body 2 and the right valve body 3 are disconnected, the anti-breaking mechanism can be reassembled for use again according to installation operation steps, and the problem that irrigation is delayed due to the fact that a water supply pipe is damaged is solved.
The steel ball placing hole has a cylindrical upper part and an arc lower part, so that only the lower part of the steel ball 15 is exposed out of the steel ball placing hole, and the steel ball 15 is prevented from falling off when the valve body is separated.
Example 2:
referring to fig. 1-5, the anti-breaking device of the self-propelled irrigation agricultural machine comprises a left valve body 2, a right valve body 3 and a valve core mechanism, wherein inner cavities of the left valve body and the right valve body are oppositely arranged, and mounting flanges 1 are arranged at the left end of the left valve body 2 and the right end of the right valve body 3; the left end of the right valve body 3 is provided with a tubular joint 16, and the right end of the left valve body 2 is inserted into an inner hole of the tubular joint 16 and is communicated with the left end of the right valve body 3 in an abutting mode; a plurality of steel ball placing holes are arranged on the tubular joint 16 in a surrounding manner, and rotatable steel balls 15 are placed in the steel ball placing holes; the tubular joint 16 is sequentially provided with a locking ring 17, a locking ring 12 and a limiting ring 11 from left to right, the locking ring 17 is fixedly connected with the tubular joint 16 through a screw 20, and the locking ring 12 can rotate and can be locked by a locking mechanism to be non-rotatable; an arc-shaped groove 21 corresponding to the steel ball 15 is arranged on the inner ring of the locking ring 12, and the radian radius of the arc-shaped groove 21 is gradually increased along the clockwise direction; the upper end of the steel ball 15 is abutted against the arc-shaped groove 21, the lower end of the steel ball can be embedded into an annular groove 22 arranged on the outer side of the right end of the left valve body 2, and the annular groove 22 is arc-shaped.
Furthermore, the locking mechanism comprises an arc-shaped concave hole 23 arranged on the inner side surface of the locking ring 17 and a clamping hole arranged on the side surface of the locking ring 12, a clamping column 18 and a first compression spring 14 are arranged in the clamping hole, one end of the first compression spring 14 abuts against the tail end of the clamping column 18 and abuts against the inner wall of the bottom end of the clamping hole, and the front end of the clamping column 18 is arc-shaped and can be embedded into the arc-shaped concave hole 23.
The locking column 18 is initially pressed into the locking hole by the side surface of the locking ring 17, at this time, the first compression spring 14 is compressed, when the locking ring 12 is rotated to the locking position, the locking column 18 is aligned with the arc-shaped concave hole 23, and the front end of the locking column 18 is squeezed into the arc-shaped concave hole 23 under the action of the first compression spring 14, so that the locking ring 12 is locked to be non-rotatable. Through locking mechanical system, locking mechanical system lockable locking ring 12 makes it can not rotate, avoids locking ring 12 not hard up rotation to lead to the unexpected break away from of left valve body 2 and right valve body 3 in daily use. In addition, the arc-shaped clamping column 18 can be clamped into the arc-shaped concave hole 23 more smoothly.
Furthermore, the tail end of the clamping column 18 is provided with a limiting column 19, the limiting column 19 is sleeved into the inner ring of the first compression spring 14, and the limiting column 19 can guide the clamping column 18, so that the clamping column 18 can stretch stably to avoid jumping.
Further, the valve core mechanism comprises a support 4 arranged in the inner cavity of the valve body, a central through hole is formed in the center of the support 4, and the support 4 is provided with a flow hole 5 for water flow to pass through; a guide rod 7 is fixed in the central through hole, a second compression spring 8 is sleeved on the guide rod 7, the guide rod 7 is arranged in the guide hole of the valve clack 9, and one end of the second compression spring 8 is abutted against the support 4 while the other end is positioned in the guide hole and is abutted against the valve clack 9.
When the left valve body 2 and the right valve body 3 are in butt joint, the valve clack 9 in the left valve body 3 abuts against and compresses the second compression spring 8, the left valve body 2 is communicated with the right valve body 3, and water flows through a gap between the valve clack 9 and the valve bodies. When the car drags the delivery pipe, when left valve body 2 and right valve body 3 received certain external pulling force disconnection, under second compression spring 8's effect, second compression spring 8 resets and drives valve clack 9 removal shutoff valve body. Through case mechanism, case mechanism can guarantee left valve body 2 and the intercommunication of right valve body 3 when breaking valve normal work, blocks up left valve body 2 and right valve body 3 in the twinkling of an eye at the disconnection and guarantees not have the leakage, can guarantee that water supply is normal, can avoid the water waste when the disconnection again.
Furthermore, the guide rod 7 comprises a guide part 701, a shaft shoulder 702 and a mounting part 703, the end of the mounting part 703 is provided with threads, and the guide rod 7 is clamped and fixed on the support 4 through the shaft shoulder 702 and the locking nut 6, so that the installation of the valve core mechanism is facilitated.
Furthermore, a first sealing rubber ring 10 is arranged on the joint surface of the valve clack 9 and the valve body, and when the valve clack 9 and the valve body are jointed to block the valve body, the first sealing rubber ring 10 can enhance the sealing performance of the valve clack and avoid leakage.
Further, the quantity of steel balls 15 is at least 3, and encircles the equidistant distribution of tubulose joint 16, and the stability of butt joint is guaranteed to left valve body 2 and right valve body 3.
Further, 2 right-hand member surfaces of left valve body are equipped with second rubber seal 13, and when left valve body 2 and right valve body 3 butt joint, second rubber seal 13 can strengthen the leakproofness of left valve body 2 and 3 junctions of right valve body, avoids leaking.
The other parts of this embodiment are the same as embodiment 1, and are not described herein again.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only used for clearly illustrating the verification process of the invention and are not used for limiting the patent protection scope of the invention, which is defined by the claims, and all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a self-propelled agricultural machine for irrigation prevents breaking device, includes left valve body (2), right valve body (3) and controls the relative case mechanism that sets up of valve body inner chamber, left side valve body (2) left end and right valve body (3) right-hand member all are equipped with mounting flange (1), its characterized in that: the left end of the right valve body (3) is provided with a tubular joint (16), and the right end of the left valve body (2) is inserted into an inner hole of the tubular joint (16) and is communicated with the left end of the right valve body (3) in an abutting mode; a plurality of steel ball placing holes are formed in the tubular joint (16) in a surrounding mode, and rotatable steel balls (15) are placed in the steel ball placing holes; the tubular joint (16) is sequentially provided with a locking ring (17), a locking ring (12) and a limiting ring (11) from left to right, the locking ring (17) is fixedly connected with the tubular joint (16) through a screw (20), and the locking ring (12) can rotate and can be locked by a locking mechanism to be non-rotatable; an arc-shaped groove (21) corresponding to the steel ball (15) is formed in the inner ring of the locking ring (12), and the radian radius of the arc-shaped groove (21) is gradually increased along the clockwise direction; the upper end of the steel ball (15) is abutted against the arc-shaped groove (21), the lower end of the steel ball can be embedded into an annular groove (22) formed in the outer side of the right end of the left valve body (2), and the annular groove (22) is arc-shaped;
the locking mechanism comprises an arc-shaped concave hole (23) formed in the inner side face of the locking ring (17) and a clamping hole formed in the side face of the locking ring (12), a clamping column (18) and a first compression spring (14) are arranged in the clamping hole, one end of the first compression spring (14) abuts against one end of the tail end of the clamping column (18) and abuts against the inner wall of the bottom end of the clamping hole, and the front end of the clamping column (18) is arc-shaped and can be embedded into the arc-shaped concave hole (23); the tail end of the clamping column (18) is provided with a limiting column (19), and the limiting column (19) is sleeved into the inner ring of the first compression spring (14).
2. The pulling-off prevention device for a self-propelled agricultural machine for irrigation according to claim 1, characterized in that: the valve core mechanism comprises a support (4) arranged in an inner cavity of the valve body, a central through hole is formed in the center of the support (4), and a flow hole (5) for water to pass through is formed in the support (4); a guide rod (7) is fixed in the central through hole, a second compression spring (8) is sleeved on the guide rod (7), the guide rod (7) is arranged in the guide hole of the valve clack (9), one end of the second compression spring (8) abuts against the support (4), the other end of the second compression spring is located in the guide hole and abuts against the valve clack (9).
3. The pull-off preventing device for a self-propelled agricultural machine for irrigation according to claim 2, wherein: the guide rod (7) comprises a guide part (701), a shaft shoulder (702) and an installation part (703), wherein the end of the installation part (703) is provided with threads, and the guide rod (7) is clamped and fixed on the support (4) through the shaft shoulder (702) and the locking nut (6).
4. The pull-off preventing device for a self-propelled agricultural machine for irrigation according to claim 2, wherein: and a first sealing rubber ring (10) is arranged on the joint surface of the valve clack (9) and the valve body.
5. The pulling-off prevention device for a self-propelled agricultural machine for irrigation according to claim 1, characterized in that: the quantity of the steel balls (15) is at least 3, and the steel balls are distributed around the tubular joint (16) at equal intervals.
6. The pulling-off prevention device for a self-propelled agricultural machine for irrigation according to claim 1, characterized in that: and a second sealing rubber ring (13) is arranged on the surface of the right end of the left valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910596631.7A CN110319288B (en) | 2019-07-03 | 2019-07-03 | Self-propelled agricultural machine for irrigation prevents breaking device |
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| CN201910596631.7A CN110319288B (en) | 2019-07-03 | 2019-07-03 | Self-propelled agricultural machine for irrigation prevents breaking device |
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| CN110319288B true CN110319288B (en) | 2021-01-29 |
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| CN111810645B (en) * | 2020-04-21 | 2022-09-09 | 贵州电网有限责任公司 | Cable pipe plugging and sealing device |
| CN117759801B (en) * | 2024-02-22 | 2024-04-23 | 南通金驰机电有限公司 | Water-cooling leakage-proof connecting structure of motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US2449920A (en) * | 1946-03-07 | 1948-09-21 | Diversified Designing & Machin | Conduit coupling |
| CN201779323U (en) * | 2010-09-27 | 2011-03-30 | 重庆四联油气设备制造有限公司 | Liquefied natural gas (LNG) dispenser release coupler |
| TWM402060U (en) * | 2010-12-08 | 2011-04-21 | Compass Corp | Clamp with direction-changing function |
| CN104864208A (en) * | 2015-04-17 | 2015-08-26 | 柳州市乾阳机电设备有限公司 | Quick connector capable of automatically opening and closing interface |
| FR3044068B1 (en) * | 2015-11-20 | 2017-12-22 | Electricite De France | DEVICE FOR SEALING BETWEEN A TUBE AND A COLUMN THROUGH THE SAME, ITS MOUNTING METHOD |
| CN205919049U (en) * | 2016-05-21 | 2017-02-01 | 慈溪市奇超洁具实业有限公司 | Novel water separator |
| CN107093875A (en) * | 2016-12-30 | 2017-08-25 | 广州程科电子科技有限公司 | Novel power line is fixed device |
| CN207230083U (en) * | 2017-09-21 | 2018-04-13 | 苏州贝茵医疗器械有限公司 | One kind hits bead rotating mechanism |
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