A ball-pushing device for loading and unloading missiles with small gaps
Through the combined structure of the push-propelled rod and the ball hinge module, the missile can freely roll in the launch cylinder at a small angle, solving the problem of damage to the missile push-propelled hole caused by traditional push-propelled devices, and improving the reliability of missile loading/retraction.
Patent Information
- Application Number
- CN202211660864.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-23
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2042-12-23
AI Technical Summary
During the missile's small gap loading/retreatment process, traditional bullet pushing devices limit the risk of missile rolling movement resulting in damage to the bullet hole.
The combined structure of the push-up rod, the ball hinge module and the push-up frame is adopted, and the push-up rod is arranged horizontally. The ball hinge module allows the missile to roll freely in the launch cylinder at a small angle to avoid excessive force from the missile push-up hole.
The missile can be rolled freely at a small angle in the launch cylinder, avoiding damage to the missile push hole, and improving the reliability and safety of loading/retreating the cylinder.
Smart Images

Figure CN115979063B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of missile technical support, in particular to a ball-pushing device for loading / retracting missiles with small gaps. Background Art
[0002] The small gap loading / withdrawal of a missile can be roughly understood as the horizontal loading / withdrawal of a "cylinder" into / from a "thin-walled cylinder". During the loading / withdrawal process, there is no positioning guide between the "cylinder" and the "thin-walled cylinder". The upper and lower front and back gaps between the inner walls of the "cylinder" and the "thin-walled cylinder" are very small, about 1mm. The process of horizontal loading / withdrawal of a "cylinder" into / from a "thin-walled cylinder" is the small gap loading / withdrawal process of a missile.
[0003] During missile loading and unloading, the pusher mechanism is attached to a reciprocating power actuator. The pusher mechanism is connected to the missile. Forward movement of the power actuator loads the missile into the launch tube, and backward movement ejects it. Because there are no positioning constraints between the missile and the launch tube during loading and unloading, the missile will roll slightly within the tube. Traditional pushers, when connected to the missile, restrict this roll, causing excessive stress on the missile's ejection port, posing a risk of damage. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a missile small gap loading / extraction push ball winch device which can enable the missile to roll freely at a small angle in the launch tube to avoid damage to the missile's push hole when the missile is loaded / extracted in a small gap.
[0005] The invention discloses a ball-jointed device for loading / retracting missiles through small gaps, comprising a ramrod, a ball-jointed module, and a ramrod rack. The ramrod is arranged horizontally, and has a rear end and a front end, respectively. The ramrod rack is fixed with two ramrod pins that match the ramrod holes of the missile, and the front end of the ramrod is connected to the ramrod rack via the ball-jointed module.
[0006] The present invention provides a ball-jointed push pin device for loading / retracting a missile through a small gap, wherein the push pin rack comprises a first straight section, two inclined sections, and two second straight sections; the upper end of the first straight section is fixedly connected to one second straight section via an inclined section; the lower end of the first straight section is fixedly connected to another second straight section via another inclined section; the first straight section and the two second straight sections each have a rear side surface and a front side surface; the rear side surface of the first straight section is connected to a ball-jointed module; and the two push pins are respectively fixedly arranged on the front side surfaces of the two second straight sections.
[0007] The present invention provides a ball-pushing hinge device for loading / retracting missiles into small gaps, wherein the ball hinge module includes a ball pin, an annular plate and a ball seat, the ball pin includes a ball head and a ball rod coaxially arranged with the push rod, the ball seat is a cylindrical structure, the front end of the ball seat is fixedly connected to the rear side of the first straight section, a ball groove matching the ball head is provided at the center of the rear side of the ball seat, the ball head is rotatably installed in the ball groove, the rear end of the ball head extends from the inside of the ball groove to the outside of the ball groove and is fixedly connected to the front end of the ball rod, the rear end of the ball rod is fixedly connected to the front end of the push rod, the annular plate is coaxially arranged with the ball seat, the diameter of the center hole of the annular plate is smaller than the diameter of the ball head, the annular plate is sleeved on the ball head outside the ball groove and abuts against the ball head outside the ball seat, and the front side of the annular plate is fixedly connected to the rear side of the ball seat.
[0008] The present invention discloses a ball-pushing device for loading / retracting a missile into a small gap, wherein the annular plate is a split structure, the annular plate is composed of two semi-annular plates, the ball head outside the ball groove abuts between the two semi-annular plates, and the front side surfaces of the two semi-annular plates are fixedly connected to the rear side surface of the ball head seat.
[0009] The present invention provides a ball-pushing hinge device for small-gap loading / retraction of missiles, wherein the ball-hinged module further comprises a plurality of first bolts, a plurality of first through holes are circumferentially spaced apart on the upper sides of the two semi-annular plates, a plurality of first threaded blind holes are circumferentially spaced apart on the rear side surfaces of the ball head seats, the number of the first bolts and the number of the first through holes are equal to the number of the first threaded blind holes, a plurality of the first bolts, a plurality of the first through holes and a plurality of the first threaded blind holes are arranged in one-to-one correspondence with each other, the screw ends of the first bolts pass through the corresponding first through holes and are threadedly connected to the corresponding first threaded blind holes, and the nuts of the first bolts abut against the rear side surfaces of the semi-annular plates.
[0010] In the ball-pushing device for loading / retracting missiles into small gaps according to the present invention, the front end of the ball head seat is fixedly connected to the rear side of the first straight section in the following manner:
[0011] The ball joint module further includes a first mounting plate and four second bolts. The first mounting plate is a square plate structure. The first mounting plate is located between the ball head seat and the first straight section. The rear side of the first mounting plate is vertically fixedly connected to the front end of the ball head seat.
[0012] A first clamping groove is provided on the front side surface of the first mounting plate, which passes through the upper and lower surfaces of the first mounting plate. The first mounting plate is clamped on the first straight section through the first clamping groove. A second through hole communicating with the first clamping groove is provided at each of the four corners of the first mounting plate. Four second threaded blind holes are provided on the rear side surface of the first straight section inside the first clamping groove. The four second bolts, the four second through holes and the four second threaded blind holes are arranged in one-to-one correspondence with each other. The screw ends of the second bolts pass through the corresponding second through holes and are threadedly connected to the corresponding second threaded blind holes. The nuts of the second bolts abut against the rear side surface of the first mounting plate.
[0013] The ball-pushing device for loading / extracting a missile through a small gap according to the present invention is specifically designed to fix the rear end of the ball rod to the front end of the ramrod in the following manner:
[0014] The locking plate is fixedly secured to the front of the second support bracket and is secured to a position adjacent to the front member of the second support bracket.
[0015] The present invention relates to a ball-pushing device for loading / retracting a missile through a small gap, wherein a first spring washer and a first flat washer are mounted on the screw rod of the first bolt between the nut of the first bolt and the semi-annular plate, the first spring washer being located behind the first flat washer, and the nut of the first bolt abuts against the rear side of the semi-annular plate via the first spring washer and the first flat washer in sequence.
[0016] A second spring washer and a second flat washer are mounted on the screw rod of the second bolt between the nut of the second bolt and the first mounting plate. The second spring washer is located on the rear side of the second flat washer. The nut of the second bolt abuts against the rear side of the first mounting plate through the second spring washer and the second flat washer in sequence.
[0017] A third spring washer and a third flat washer are mounted on the screw rod of the third bolt between the nut of the third bolt and the third mounting plate. The third spring washer is located on the rear side of the third flat washer. The nut of the third bolt is in contact with the rear side surface of the third mounting plate through the third spring washer and the third flat washer in sequence.
[0018] The invention discloses a ball-pushing device for loading / retracting a missile into a small gap, wherein the first straight section, the two inclined sections and the two second straight sections are an integrally formed structure.
[0019] The invention discloses a ball-pushing device for loading / retracting a missile into a small gap, wherein the ball head and the ball head rod are an integrally formed structure.
[0020] The difference between the push-bullet ball hinge device for loading / extracting a missile with a small gap and the prior art is that when in use, the push-bullet rod is fixedly connected to the power actuator, and the two push-bullet pins are respectively fixedly connected to the two push-bullet holes of the missile. When the missile is loaded / extracted from the tube with a small gap, the ball hinge module can enable the missile to roll freely at a small angle in the launch tube, thereby avoiding the problem of damage to the missile push-bullet holes due to restricting the free rolling of the missile.
[0021] The present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic structural diagram of a ball-pushing device for loading / retracting a missile into a small gap according to the present invention;
[0023] Figure 2 This is a schematic diagram of the connection between the ball-pushing device for loading / extracting a missile into a small gap and the missile according to the present invention;
[0024] Figure 3 This is a schematic structural diagram of the ramrod and the third mounting plate in the ramrod-ball winch device for narrow-gap loading / extraction of missiles according to the present invention when used in conjunction with each other;
[0025] Figure 4 This is a schematic structural diagram of the ball hinge module in the ball hinge device for narrow-gap loading / extraction of missiles according to the present invention (the second and third bolts are hidden);
[0026] Figure 5 This is a schematic structural diagram of the missile pusher rack and two pusher pins in the missile pusher ball winch device for small-gap loading / extraction of missiles according to the present invention when used in conjunction with each other. DETAILED DESCRIPTION
[0027] like Figure 1 and Figure 2 As shown in the figure, the ball-jointed device for loading / retracting missiles with small gaps of the present invention comprises a ramrod 1, a ball-jointed module and a ramrod rack 30. The ramrod 1 is arranged horizontally, and the two ends of the ramrod 1 are respectively the rear end (i.e. Figure 1 、 2 The left end of the ramrod shown) and the front end (i.e. Figure 1 、 2 The ramrod 1 is fixedly connected to the power actuator (not shown) through the four mounting holes 2, that is, the ramrod 1 is fixedly connected to the power actuator by passing a fastener (such as a bolt) through the mounting holes. Of course, the ramrod can also be fixedly connected to the power actuator by other means, such as riveting, as long as the ramrod and the power actuator can be fixedly connected. The ramrod rack 30 is fixedly provided with two push pins 6 that match the missile push holes. The two push pins 6 are fixedly connected to the two push holes of the missile 23 respectively. The front end of the ramrod 1 is connected to the ramrod rack 30 by a ball joint module. When the missile 23 is loaded / retracted in a small gap, the ball joint module can enable the missile 23 to roll freely at a small angle in the launch tube (not shown).
[0028] It should be noted that in this embodiment, the front-to-back direction is defined as follows: when the missile moves forward, it can be loaded into the launch tube; conversely, when the missile moves backward, it can be ejected from the launch tube. Thus, the ramrod, ball-joint module, and ramjet rack of the present invention are arranged sequentially from back to front.
[0029] like Figure 1 and Figure 5 As shown, the bullet pushing rack 30 in the present invention includes a first straight section 5, two inclined sections 4 and two second straight sections 3. The upper end of the first straight section 5 is fixedly connected to a second straight section 3 through an inclined section 4, and the lower end of the first straight section 5 is fixedly connected to another second straight section 3 through another inclined section 4. The first straight section 5 and the two second straight sections 3 both have a rear side surface and a front side surface. The rear side surface of the first straight section 5 is connected to the ball joint module, and two bullet pushing pins 6 are respectively fixedly arranged on the front side surfaces of the two second straight sections 3.
[0030] like Figure 1 and Figure 4As shown, the ball joint module in the present invention includes a ball pin, an annular plate and a ball seat 7. The ball pin includes a ball head 16 and a ball rod 15 coaxially arranged with the push rod 1. The ball seat 7 is a cylindrical structure. The front end of the ball seat 7 is fixedly connected to the rear side of the first straight section 5. A ball groove (not shown in the figure) matching the ball head 16 is opened at the center of the rear side of the ball seat 7. The ball head 16 is rotatably installed in the ball groove. The rear end of the ball head 16 extends from the inside of the ball groove to the outside of the ball groove and is fixedly connected to the front end of the ball rod 15. The rear end of the ball rod 15 is fixedly connected to the front end of the push rod 1. The annular plate is coaxially arranged with the ball seat 7. The diameter of the center hole of the annular plate is smaller than the diameter of the ball head 16. The annular plate is mounted on the ball head 16 outside the ball groove and abuts against the ball head 16 outside the ball seat 7. The front side of the annular plate is fixedly connected to the rear side of the ball seat 7.
[0031] The annular plate in the present invention is a split structure, which is composed of two semi-annular plates 12. The ball head 16 outside the ball groove abuts between the two semi-annular plates 12, and the front side surfaces of the two semi-annular plates 12 are fixedly connected to the rear side surfaces of the ball head seat 7.
[0032] like Figure 4 As shown, the ball joint module of the present invention also includes a plurality of first bolts 17, a plurality of first through holes (not shown in the figure) are circumferentially spaced apart on the two semi-annular plates 12, and a plurality of first threaded blind holes (not shown in the figure) are circumferentially spaced apart on the rear side of the ball head seat 7. The number of the first bolts 17 and the number of the first through holes are equal to the number of the first threaded blind holes. The plurality of first bolts 17, the plurality of first through holes and the plurality of first threaded blind holes are arranged in a one-to-one correspondence with each other. The screw end of the first bolt 17 passes through the corresponding first through hole and is threadedly connected to the corresponding first threaded blind hole. The nut of the first bolt 17 abuts against the rear side of the semi-annular plate 12. It can be seen that the front side of the two semi-annular plates 12 is fixedly connected to the rear side of the ball head seat 7 by the plurality of first bolts 17.
[0033] like Figure 1 、 Figure 4 and Figure 5 As shown, the specific way in which the front end of the ball head seat 7 is fixedly connected to the rear side of the first straight section 5 in the present invention is: the ball joint module also includes a first mounting plate 8 and four second bolts 11, the first mounting plate 8 is a square plate structure, the first mounting plate 8 is located between the ball head seat 7 and the first straight section 5, and the rear side of the first mounting plate 8 is vertically fixedly connected to the front end of the ball head seat 7.
[0034] A first clamping groove 27 is provided on the front side surface of the first mounting plate 8, which runs through the upper and lower surfaces of the first mounting plate 8. The first mounting plate 8 is clamped on the first straight section 5 through the first clamping groove 27. A second through hole 28 communicating with the first clamping groove 27 is provided at each of the four corners of the first mounting plate 8. Four second threaded blind holes 29 are provided on the rear side surface of the first straight section 5 inside the first clamping groove 27. The four second bolts, the four second through holes 28 and the four second threaded blind holes 29 are arranged in a one-to-one correspondence with each other. The screw ends of the second bolts 11 pass through the corresponding second through holes 28 and are threadedly connected to the corresponding second threaded blind holes 29. The nut of the second bolt 11 abuts against the rear side surface of the first mounting plate 8.
[0035] like Figure 1 、 Figure 3 and Figure 4 As shown, the specific method of fixing the rear end of the ball head rod 15 to the front end of the push rod 1 in the present invention is as follows: the ball joint module also includes a second mounting plate 14 and four third bolts 18, the second mounting plate 14 is located between the push rod 1 and the ball head rod 15, and a third mounting plate 13 is provided between the push rod 1 and the second mounting plate 14. The second mounting plate 14 and the third mounting plate 13 are both square plate structures. The front side of the second mounting plate 14 is vertically fixedly connected to the rear end of the ball head rod 15, and the rear side of the third mounting plate 13 is vertically fixedly connected to the front end of the push rod 1. The front side of the third mounting plate 13 is provided with a second card slot 2 matching the second mounting plate 14. 5. The second mounting plate 14 is clamped in the second clamping groove 25. The second mounting plate 14 and the third mounting plate 13 cooperate to form a square body. A threaded hole 26 is respectively opened at the four corners of the second mounting plate 14 and passes through the front and rear surfaces of the second mounting plate 14. Four third through holes 24 are opened on the rear side of the third mounting plate 13, each of which is connected to the second clamping groove 25. The four third bolts, the four threaded holes 26 and the four third through holes 24 are arranged in a one-to-one correspondence with each other. The screw end of the third bolt 18 passes through the corresponding third through hole 24 and is threadedly connected to the corresponding threaded hole 26. The nut of the third bolt 18 abuts against the rear side of the third mounting plate 13.
[0036] like Figure 4 As shown, in order to prevent the first bolt 17 from loosening and to make the semi-annular plate 12 and the ball head seat 7 more firmly fixed, in the present invention, a first spring washer 21 and a first flat washer 22 are mounted on the screw rod of the first bolt 17 between the nut of the first bolt 17 and the semi-annular plate 12. The first spring washer 21 is located on the rear side of the first flat washer 22, and the nut of the first bolt 17 is in contact with the rear side of the semi-annular plate 12 through the first spring washer 21 and the first flat washer 22 in turn.
[0037] like Figure 1As shown, in order to prevent the second bolt 11 from loosening and to make the first mounting plate 8 and the first straight section 5 more firmly fixed, a second spring washer 9 and a second flat washer 10 are set on the screw rod of the second bolt 11 between the nut of the second bolt 11 and the first mounting plate 8. The second spring washer 9 is located on the rear side of the second flat washer 10, and the nut of the second bolt 11 is in contact with the rear side of the first mounting plate 8 through the second spring washer 9 and the second flat washer 10 in sequence.
[0038] In order to prevent the third bolt 18 from loosening and to make the second mounting plate 14 and the third mounting plate 13 fixed more firmly, a third spring washer 19 and a third flat washer 20 are mounted on the screw rod of the third bolt 18 between the nut of the third bolt 18 and the third mounting plate 13. The third spring washer 19 is located on the rear side of the third flat washer 20. The nut of the third bolt 18 is in contact with the rear side of the third mounting plate 13 through the third spring washer 19 and the third flat washer 20 in sequence.
[0039] In the present invention, the first straight section 5, the two inclined sections 4 and the two second straight sections 3 are an integrally formed structure, and the ball head 16 and the ball head rod 15 are an integrally formed structure.
[0040] like Figure 1 and Figure 2 As shown, when in use, the present invention comprises a push rod 1 fixedly connected to a power actuator via four mounting holes 2, and two push pins 6 fixedly connected to two push holes of a missile 23. When the power actuator moves forward, the present invention provides thrust for loading the missile 23, and when the power actuator moves backward, the present invention provides pulling force for withdrawing the missile 23 from the launch tube, thereby achieving the loading / withdrawal operation of the missile 23. During the loading / withdrawal process of the missile 23, the missile 23, the push rod 30, and the ball head seat 7 can be considered as a whole. The two semi-annular plates 12 confine the ball head 16 within the ball groove. When the missile 23 freely rolls at a small angle within the launch tube, the push rod 30 and the ball head seat 7 both freely roll around the ball head 16 at a small angle, driven by the missile 23. Thus, the application of the present invention eliminates the hidden danger of excessive force on the missile push holes and damage due to the limited rolling of the missile 23 during the narrow gap loading / withdrawal of the missile 23 using conventional push rod devices.
[0041] It should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "front", "back", "left", "right", and "middle" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.
[0042] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0043] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.
Claims
1. A ball-pushing device for loading / retracting missiles into / from a missile tube with a small gap, characterized by: It includes a push rod, a ball joint module and a push rack. The push rod is arranged horizontally. The two ends of the push rod are respectively the rear end and the front end. The push rack is fixed with two push pins that match the missile push holes. The front end of the push rod is connected to the push rack through the ball joint module. The bullet pushing rack includes a first straight section, two inclined sections and two second straight sections. The upper end of the first straight section is fixedly connected to a second straight section through an inclined section, and the lower end of the first straight section is fixedly connected to another second straight section through another inclined section. The first straight section and the two second straight sections both have a rear side surface and a front side surface. The rear side surface of the first straight section is connected to the ball joint module, and the two bullet pushing pins are respectively fixedly arranged on the front side surfaces of the two second straight sections.
2. The ball-pushing device for loading and unloading missiles into or out of a missile tube within a narrow gap according to claim 1, characterized in that: The ball joint module includes a ball pin, an annular plate and a ball seat. The ball pin includes a ball head and a ball rod coaxially arranged with the push rod. The ball seat is a cylindrical structure. The front end of the ball seat is fixedly connected to the rear side of the first straight section. A ball groove matching the ball head is opened at the center of the rear side of the ball seat. The ball head is rotatably installed in the ball groove. The rear end of the ball head extends from the inside of the ball groove to the outside of the ball groove and is fixedly connected to the front end of the ball rod. The rear end of the ball head rod is fixedly connected to the front end of the push rod. The annular plate is coaxially arranged with the ball seat. The diameter of the center hole of the annular plate is smaller than the diameter of the ball head. The annular plate is sleeved on the ball head outside the ball groove and abuts against the ball head outside the ball head seat. The front side of the annular plate is fixedly connected to the rear side of the ball head seat.
3. The ball-pushing device for loading and unloading missiles into or out of a missile tube within a narrow gap according to claim 2, characterized in that: The annular plate is a split structure, and the annular plate is composed of two semi-annular plates. The ball head outside the ball groove abuts between the two semi-annular plates, and the front side surfaces of the two semi-annular plates are fixedly connected to the rear side surfaces of the ball head seats.
4. The ball-pushing device for loading and unloading missiles into or out of a missile tube within a narrow gap according to claim 3, characterized in that: The ball joint module also includes a plurality of first bolts, a plurality of first through holes are circumferentially spaced apart on the two semi-annular plates, and a plurality of first threaded blind holes are circumferentially spaced apart on the rear side surface of the ball head seat. The number of the first bolts and the number of the first through holes are equal to the number of the first threaded blind holes. The plurality of the first bolts, the plurality of the first through holes and the plurality of the first threaded blind holes are arranged in one-to-one correspondence with each other, and the screw end of the first bolt passes through the corresponding first through hole and is threadedly connected to the corresponding first threaded blind hole, and the nut of the first bolt abuts against the rear side surface of the semi-annular plate.
5. The ball-pushing device for loading / retracting a missile into a small gap according to claim 4 is characterized in that: The specific method of fixedly connecting the front end of the ball head seat to the rear side surface of the first straight section is: The ball joint module further includes a first mounting plate and four second bolts. The first mounting plate is a square plate structure. The first mounting plate is located between the ball head seat and the first straight section. The rear side of the first mounting plate is vertically fixedly connected to the front end of the ball head seat. A first clamping groove is provided on the front side surface of the first mounting plate, which passes through the upper and lower surfaces of the first mounting plate. The first mounting plate is clamped on the first straight section through the first clamping groove. A second through hole communicating with the first clamping groove is provided at each of the four corners of the first mounting plate. Four second threaded blind holes are provided on the rear side surface of the first straight section inside the first clamping groove. The four second bolts, the four second through holes and the four second threaded blind holes are arranged in one-to-one correspondence with each other. The screw ends of the second bolts pass through the corresponding second through holes and are threadedly connected to the corresponding second threaded blind holes. The nuts of the second bolts abut against the rear side surface of the first mounting plate.
6. The ball-pushing device for loading / retracting a missile into a small gap according to claim 5, characterized in that: The specific method of fixedly connecting the rear end of the ball rod and the front end of the push rod is as follows: The locking plate is fixedly secured to the front of the second support bracket and is secured to a position adjacent to the front member of the second support bracket.
7. The ball-pushing device for loading and unloading missiles into or out of a missile tube within a narrow gap according to claim 6, characterized in that: A first spring washer and a first flat washer are mounted on the screw rod of the first bolt between the nut of the first bolt and the semi-annular plate. The first spring washer is located on the rear side of the first flat washer. The nut of the first bolt abuts against the rear side of the semi-annular plate through the first spring washer and the first flat washer in sequence. A second spring washer and a second flat washer are mounted on the screw rod of the second bolt between the nut of the second bolt and the first mounting plate. The second spring washer is located on the rear side of the second flat washer. The nut of the second bolt abuts against the rear side of the first mounting plate through the second spring washer and the second flat washer in sequence. A third spring washer and a third flat washer are mounted on the screw rod of the third bolt between the nut of the third bolt and the third mounting plate. The third spring washer is located on the rear side of the third flat washer. The nut of the third bolt is in contact with the rear side surface of the third mounting plate through the third spring washer and the third flat washer in sequence.
8. The ball-pushing device for loading and unloading missiles into or out of a missile tube within a narrow gap according to claim 7, characterized in that: The first straight section, the two inclined sections and the two second straight sections are an integrally formed structure.
9. The ball-pushing device for loading and unloading missiles into or out of a missile tube within a narrow gap according to claim 8, characterized in that: The ball head and the ball head rod are an integrally formed structure.
Citation Information
Patent Citations
Arrow body propelling device
CN107560498A