Separating spring device on rocket

Abstract

The invention provides a separation spring device on a rocket. The separation spring device comprises an inner sleeve assembly, an outer sleeve assembly, a spring, a first lock hook assembly, a second lock hook assembly and a locking adjusting mechanism. The outer side of the inner sleeve assembly is sleeved with the outer sleeve assembly, and the outer sleeve assembly is movably connected with the inner sleeve assembly; the peripheral sides of the inner sleeve assembly and the outer sleeve assembly are sleeved with the spring, and the first lock hook assembly is installed at the end, connected with the spring, of the inner sleeve assembly and used for connecting one end of the spring with the inner sleeve assembly in a locked mode; the second lock hook assembly is installed at the end, connected with the spring, of the outer sleeve assembly. The locking adjusting mechanism is connected with the inner sleeve assembly and the outer sleeve assembly and used for adjusting relative movement of the inner sleeve assembly and the outer sleeve assembly, adjusting the length of the spring and locking and fixedly connecting the inner sleeve assembly and the outer sleeve assembly. The force value of the spring is adjustable, the spring is detachable, the spring cannot be separated from the first lock hook assembly and the second lock hook assembly, and safe use can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of separation springs, and in particular to a separation spring device on an arrow. Background Art

[0002] The push rod type separation spring device is used to provide separation force between the star (ship) and the rocket or other sections of the rocket. The traditional separation spring structure consists of an inner sleeve base, a spring, an inner sleeve, an outer sleeve, an outer sleeve base, an inner sleeve locking nut, a locking rod, and a locking pin. The inner sleeve, the inner sleeve locking nut and the inner sleeve base are welded together to form the inner sleeve; the inner hole of the inner sleeve locking nut is processed with an internal thread; the outer sleeve and the outer sleeve base are welded together to form the outer sleeve; the inner and outer sleeve bases are circumferentially processed with teeth, the locking rod is processed with external threads and locking pin holes, and the outer sleeve base is processed with locking pin holes; the locking rod is installed into the inner sleeve locking nut, and the locking rod thread is coated with anti-loosening glue to prevent the locking rod from rotating and falling off during transportation and flight. The spring is inserted into the inner sleeve, and the outer sleeve is inserted into the inner sleeve and the spring. The two end faces of the spring are fitted with the sleeve base. At both ends of the spring, the teeth are used to clamp the spring. The separation spring is compressed by a compressor until the locking rod pin hole coincides with the center of the pin hole of the outer sleeve base, and then the locking pin is inserted. The assembled separation spring can be used for testing or installed on the separation surface of the front and rear cabin sections.

[0003] For the assembled separation spring, during the process of compressing and assembling the locking pin in the compressor, if it is found that the locking rod pin hole is adjusted parallel to the axis of the outer sleeve pin hole and the locking pin cannot be inserted into the locking rod and the outer sleeve pin hole, the separation spring cannot be compressed and used; after the force measurement of the assembled separation spring is completed, the separation spring whose force value exceeds the deviation range can only be discarded and scrapped and cannot be installed.

[0004] The traditional separation spring structure spring cannot be replaced according to the situation after the tooth rolling is completed. When an unsuitable spring is encountered or it is found after the tooth rolling that the locking rod pin hole is parallel to the axis of the outer sleeve pin hole, and it is difficult to insert the locking pin, and the locking rod angle cannot be adjusted, the entire spring can only be scrapped, causing waste and increasing launch costs. Before pressing the teeth, the locking rod pin hole and the outer sleeve pin hole axis need to be adjusted to be parallel, which makes the operation difficult; the position of the pin hole on the locking rod cannot be adjusted, and the compression force value of the assembled spring cannot be adjusted either. There are large differences in the compression force values ​​of springs in the same batch, which affects the posture of the rear stage of the cabin when the rocket body is separated; it has an impact on the safety of rocket flight, and before flight, a batch of springs need to be screened to select springs with similar force values ​​for installation, and the remaining springs with large differences in force values ​​can only be scrapped, resulting in a waste of resources and an increase in the launch cost of the rocket; after pressing the teeth, the clamping force of the clamping spring cannot be detected, and it is impossible to determine whether the spring will detach from the inner sleeve clamping teeth and the outer sleeve clamping teeth during the extension process, resulting in excess material colliding with the flying rocket, causing the risk of rocket launch failure.

[0005] Therefore, the technical problem that urgently needs to be solved is: how to provide a separation spring device on the arrow, in which the spring force value is adjustable, the spring is detachable, the spring cannot be separated from the inner sleeve teeth and the outer sleeve teeth, and can be used safely. Summary of the invention

[0006] The purpose of the present application is to provide a separation spring device on an arrow, in which the spring force value is adjustable, the spring is detachable, the spring will not separate from the first locking hook assembly and the second locking hook assembly, and can be used safely.

[0007] To achieve the above-mentioned purpose, the present application provides an arrow-on-arrow separation spring device, comprising an inner sleeve assembly, an outer sleeve assembly, a spring, a first locking hook assembly, a second locking hook assembly and a locking adjustment mechanism; the outer sleeve assembly is sleeved on the outside of the inner sleeve assembly, and the outer sleeve assembly is movably connected to the inner sleeve assembly, and one end of the outer sleeve assembly extends out of the outside of the inner sleeve assembly; the spring is sleeved on the outer circumference of the inner sleeve assembly and the outer sleeve assembly, one end of the spring is connected to the inner sleeve assembly, and the other end is connected to the outer sleeve assembly; the first locking hook assembly is installed between the inner sleeve assembly and the outer sleeve assembly One end of the spring connection is used to lock one end of the spring with the inner sleeve assembly; the second locking hook assembly is installed at the end of the outer sleeve assembly connected to the spring, and is used to lock the other end of the spring with the outer sleeve assembly; the locking adjustment mechanism is connected to the inner sleeve assembly and the outer sleeve assembly, and the locking adjustment mechanism is used to adjust the relative movement of the inner sleeve assembly and the outer sleeve assembly, adjust the length of the spring, and lock and fix the inner sleeve assembly and the outer sleeve assembly after the inner sleeve assembly and the outer sleeve assembly move relatively into place.

[0008] In the above-mentioned on-arrow separation spring device, the inner sleeve assembly comprises: an inner sleeve base, an inner sleeve and a locking sleeve; the inner sleeve base and the locking sleeve are respectively fixedly connected to the two ends of the inner sleeve.

[0009] As described above, the on-arrow separation spring device, wherein the outer sleeve assembly comprises: an outer sleeve base and an outer sleeve; the outer sleeve base is fixedly connected to one end of the outer sleeve away from the inner sleeve base.

[0010] As described above, the arrow-on-arrow separation spring device, wherein the first locking hook assembly is fixedly connected to the inner sleeve base, and the second locking hook assembly is fixedly connected to the outer sleeve base; one end of the spring abuts against the inner sleeve base, and the other end abuts against the outer sleeve base; the first locking hook assembly and the second locking hook assembly are respectively locked and connected to the two ends of the spring.

[0011] The arrow-on-arrow separation spring device as described above, wherein the locking adjustment mechanism includes: a locking rod and a locking pin; the locking rod is connected to the inner sleeve assembly, and the locking rod and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly; the locking rod has a locking pin hole, and the outer sleeve assembly has a plurality of outer sleeve pin holes, and the plurality of outer sleeve pin holes are spaced apart and distributed along the length direction of the outer sleeve assembly; after the locking pin hole is aligned with any one of the outer sleeve pin holes, the locking pin is inserted into the aligned locking pin hole and the outer sleeve pin hole to lock and connect the inner sleeve assembly and the outer sleeve assembly.

[0012] The arrow-on-arrow separation spring device as described above, wherein the locking adjustment mechanism includes: a locking rod and a locking pin; the locking rod is connected to the locking sleeve, and the locking rod and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly; the locking rod is located inside the outer sleeve assembly, and the locking rod coincides with the center lines of the inner sleeve assembly and the outer sleeve assembly; the locking rod has a locking pin hole, and the outer sleeve assembly has a plurality of outer sleeve pin holes, and the plurality of outer sleeve pin holes are spaced apart and distributed along the length direction of the outer sleeve assembly; after the locking pin hole is aligned with any one of the outer sleeve pin holes, the locking pin is inserted into the aligned locking pin hole and the outer sleeve pin hole to lock and connect the inner sleeve assembly and the outer sleeve assembly.

[0013] As described above, the arrow-on-separation spring device, wherein the locking rod is connected to the locking sleeve via a retaining spring, and the retaining spring limits the relative movement between the locking rod and the locking sleeve in the axial direction of the locking rod, while allowing the locking rod and the locking sleeve to rotate relative to each other.

[0014] As described above, the arrow-on-separation spring device, wherein the first locking hook assembly includes: a first spring locking hook, a first stop top and a first bolt; the first spring locking hook has an inclined hook surface; the first spring locking hook hooks the inner arc surface of the spring through the inclined hook surface; the first stop top presses the first spring locking hook; the first stop top is fixedly connected to the end of the inner sleeve assembly through the first bolt.

[0015] As described above, the arrow-on-separation spring device, wherein the second locking hook assembly includes: a second spring locking hook, a second stop top and a second bolt; the second spring locking hook has an inclined hook surface; the second spring locking hook hooks the inner arc surface of the spring through the inclined hook surface; the second stop top presses the second spring locking hook; the second stop top is fixedly connected to the end of the outer sleeve assembly through the second bolt.

[0016] As described above, the arrow-on-separation spring device, wherein the locking pin hole is an oblong hole, and the locking pin hole is arranged perpendicular to the axial direction of the locking rod; the locking rod is internally threaded with a top screw, and the top screw is arranged along the axial direction of the locking rod; the top screw is inserted into the locking pin hole, and after the top screw is rotated, the top screw moves along the axial direction of the locking rod, and the top screw is used to adjust the position of the locking pin in the locking pin hole.

[0017] The beneficial effects achieved by this application are as follows:

[0018] (1) The present application facilitates the assembly and replacement of the spring, and can also adjust the compression length of the separation spring, thereby adjusting the compression force value of the separation spring to within a tolerance range.

[0019] (2) The first spring lock hook and the second spring lock hook of the present application can firmly fix the spring on the inner sleeve assembly and the outer sleeve assembly. The spring will not be separated from the first spring lock hook and the second spring lock hook during the extension and work process, and is very safe to use. The assembled separated spring no longer has to go through the screening and elimination process, which saves resources and reduces the R&D, manufacturing, and launch costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For those skilled in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a cross-sectional view of an on-arrow separation spring device according to an embodiment of the present application.

[0022] Figure 2 It is a front view of an on-arrow separation spring device according to an embodiment of the present application.

[0023] Figure 3 This is a right view of an arrow-on-arrow separation spring device according to an embodiment of the present application.

[0024] Figure 4 This is a left view of an arrow-mounted separation spring device according to an embodiment of the present application.

[0025] Figure 5 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0026] Figure 6 for Figure 1 Enlarged schematic diagram of point B in the middle.

[0027] Figure markings: 1-inner sleeve base; 2-first spring lock hook; 3-first stop; 4-first bolt; 5-spring; 6-inner sleeve; 7-outer sleeve; 8-outer sleeve base; 9-second spring lock hook; 10-second stop; 11-locking rod; 12-locking pin; 13-top screw; 14-circlip; 15-locking sleeve; 16-second bolt; 17-outer sleeve pin hole. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0029] like Figure 1-6 As shown, the present application provides an arrow-on-arrow separation spring device, comprising an inner sleeve assembly, an outer sleeve assembly, a spring 5, a first locking hook assembly, a second locking hook assembly and a locking adjustment mechanism; the outer sleeve assembly is sleeved on the outside of the inner sleeve assembly, and the outer sleeve assembly is movably connected to the inner sleeve assembly, and one end of the outer sleeve assembly extends out of the outside of the inner sleeve assembly; the spring 5 is sleeved on the outer peripheral side of the inner sleeve assembly and the outer sleeve assembly, one end of the spring 5 is connected to the inner sleeve assembly, and the other end is connected to the outer sleeve assembly; the first locking hook assembly is installed at one end of the inner sleeve assembly connected to the spring 5, and is used to lock and connect one end of the spring 5 to the inner sleeve assembly; the second locking hook assembly is installed at one end of the outer sleeve assembly connected to the spring 5, and is used to lock and connect the other end of the spring 5 to the outer sleeve assembly; the locking adjustment mechanism is connected to the inner sleeve assembly and the outer sleeve assembly, and the locking adjustment mechanism is used to adjust the relative movement of the inner sleeve assembly and the outer sleeve assembly, adjust the length of the spring 5, and lock and fix the inner sleeve assembly and the outer sleeve assembly after the inner sleeve assembly and the outer sleeve assembly move relatively into place.

[0030] like Figure 1 and 2 As shown, the inner sleeve assembly includes: an inner sleeve base 1, an inner sleeve 6 and a locking sleeve 15; the inner sleeve base 1 and the locking sleeve 15 are respectively fixedly connected to the two ends of the inner sleeve 6. The outer sleeve assembly includes: an outer sleeve base 8 and an outer sleeve 7; the outer sleeve base 8 is fixedly connected to the end of the outer sleeve 7 away from the inner sleeve base 1.

[0031] As a preferred embodiment of the present invention, the inner sleeve 6 is welded to the inner sleeve base 1 and the locking sleeve 15 as a whole; the outer sleeve 7 is welded to the outer sleeve base 8 as a whole.

[0032] As a preferred embodiment of the present invention, the inner sleeve 6 and the outer sleeve 7 are both cylindrical, the outer sleeve 7 is sleeved on the inner sleeve 6 , and the outer sleeve 7 moves in the axial direction relative to the inner sleeve 6 .

[0033] like Figure 1 As shown, the first locking hook assembly is fixedly connected to the inner sleeve base 1, and the second locking hook assembly is fixedly connected to the outer sleeve base 8; one end of the spring 5 abuts against the inner sleeve base 1, and the other end abuts against the outer sleeve base 8; the first locking hook assembly and the second locking hook assembly are respectively locked and connected at both ends of the spring 5.

[0034] like Figure 1-6 As shown, the left end of the spring 5 is inserted into the inner sleeve base 1, and the left end surface of the spring 5 is fitted with the mounting surface of the inner sleeve base 1. The first spring locking hook 2 is installed in the inner sleeve base 1. The first spring locking hook 2 hooks the inner arc surface of the spring 5 to prevent the spring 5 from moving left and right and detaching from the first spring locking hook 2. Then the first stop top 3 is installed in the inner sleeve base 1. The first stop top 3 presses the first spring locking hook 2. The first spring locking hook 2 is processed with an inclined hook surface. After the first stop top 3 is installed, the first stop top 3 pushes the first spring locking hook 2 upward and downward to press the spring 5 so that it does not detach, thereby pressing and hooking the left end of the spring 5, and fixing the first stop top 3 on the inner sleeve base 1 with the first bolt 4. The spring 5, the first spring locking hook 2, and the first stop top 3 are fixed to the inner sleeve base 1 by the first bolt 4.

[0035] like Figure 1 As shown, the outer sleeve 7 is inserted into the inner sleeve 6, the right end surface of the spring 5 is fitted with the outer sleeve base 8, and the second spring locking hook 9 is installed in the outer sleeve base 8. The second spring locking hook 9 hooks the inner arc surface of the spring 5 to prevent the spring 5 from moving left and right and detaching from the second spring locking hook 9. Then the second stop top 10 is installed on the outer sleeve base 8. The second stop top 10 presses the second spring locking hook 9. The second spring locking hook 9 is processed with an inclined hook surface. After the second stop top 10 is installed, the second stop top 10 pushes the second spring locking hook 9 upward and downward to compress the spring 5 so that it does not detach. The second stop top 10 is fixed to the outer sleeve base 8 with a second bolt 16. The spring 5, the second spring locking hook 9, and the second stop top 10 are fixed to the outer sleeve base 8 by the second bolt 16, thereby pressing the right end of the spring 5.

[0036] like Figure 1 and 2 As shown, the locking adjustment mechanism includes: a locking rod 11 and a locking pin 12; the locking rod 11 is connected to the inner sleeve assembly, and the locking rod 11 and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly; the locking rod 11 has a locking pin hole, and the outer sleeve assembly has a plurality of outer sleeve pin holes 17, and the plurality of outer sleeve pin holes 17 are spaced apart and distributed along the length direction of the outer sleeve assembly; after the locking pin hole is aligned with any one of the outer sleeve pin holes 17, the locking pin 12 is inserted into the aligned locking pin hole and the outer sleeve pin hole 17 to lock the connection between the inner sleeve assembly and the outer sleeve assembly.

[0037] As a preferred embodiment of the present invention, outer sleeve pin holes 17 can be provided on the outer sleeve 7 and the outer sleeve base 8 of the outer sleeve assembly, and a locking pin 12 can be inserted into each of the outer sleeve pin holes 17. When the inner sleeve assembly and the outer sleeve assembly are locked and connected, the locking pin hole is only aligned with one outer sleeve pin hole 17.

[0038] like Figure 1 and 2 As shown, the locking adjustment mechanism includes: a locking rod 11 and a locking pin 12; the locking rod 11 is connected to the locking sleeve 15, and the locking rod 11 and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly; the locking rod 11 is located inside the outer sleeve assembly, and the locking rod 11 coincides with the center lines of the inner sleeve assembly and the outer sleeve assembly; the locking rod 11 has a locking pin hole, and the outer sleeve assembly has a plurality of outer sleeve pin holes 17, and the plurality of outer sleeve pin holes 17 are spaced apart and distributed along the length direction of the outer sleeve assembly; after the locking pin hole is aligned with any one of the outer sleeve pin holes 17, the locking pin 12 is inserted into the aligned locking pin hole and the outer sleeve pin hole 17 to lock the connection between the inner sleeve assembly and the outer sleeve assembly.

[0039] As a specific embodiment of the present invention, the locking pin hole in which the locking pin 12 is inserted is aligned with different outer sleeve pin holes 17, so that the relative position between the inner sleeve assembly and the outer sleeve assembly can be adjusted, thereby adjusting the compression length of the spring 5, and then adjusting the compression force value of the spring 5 to within the allowable tolerance range.

[0040] like Figure 1 As shown, the locking rod 11 is connected to the locking sleeve 15 via a retaining spring 14 , and the retaining spring 14 limits the relative movement between the locking rod 11 and the locking sleeve 15 in the axial direction of the locking rod 11 , while allowing the locking rod 11 and the locking sleeve 15 to rotate relative to each other.

[0041] like Figure 1 and 4 As shown, the first lock hook assembly includes: a first spring lock hook 2, a first stop top 3 and a first bolt 4; the first spring lock hook 2 has an inclined hook surface; the first spring lock hook 2 hooks the inner arc surface of the spring 5 through the inclined hook surface; the first stop top 3 presses the first spring lock hook 2; the first stop top 3 is fixedly connected to the end of the inner sleeve assembly through the first bolt 4.

[0042] like Figure 1 and 3 As shown, the second lock hook assembly includes: a second spring lock hook 9, a second stop top 10 and a second bolt 16; the second spring lock hook 9 has an inclined hook surface; the second spring lock hook 9 hooks the inner arc surface of the spring 5 through the inclined hook surface; the second stop top 10 presses the second spring lock hook 9; the second stop top 10 is fixedly connected to the end of the outer sleeve assembly through the second bolt 16.

[0043] As a specific embodiment of the present invention, the locking pin hole is an oblong hole, and the locking pin hole is arranged perpendicular to the axial direction of the locking rod 11; the locking rod 11 is internally threaded with a top screw 13, and the top screw 13 is arranged along the axial direction of the locking rod 11; the top screw 13 is inserted into the locking pin hole, and after the top screw 13 is rotated, the top screw 13 moves along the axial direction of the locking rod 11, and when the locking pin 12 is installed in the locking pin hole, the top screw 13 presses on the side of the locking pin 12, and when the top screw 13 is rotated, the top screw 13 moves along the axial direction of the locking rod 11 The top screw 13 drives the locking pin 12 to move along the length direction of the locking pin hole, that is, the length direction of the oblong hole. The top screw 13 is used to adjust the position of the locking pin 12 in the locking pin hole. Since the locking pin 12 is inserted into the outer sleeve pin hole of the outer sleeve assembly, the locking rod 11 and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly. Therefore, the top screw 13 can adjust the relative left and right movement of the outer sleeve assembly and the inner sleeve assembly, and then adjust the telescopic length of the spring 5 mounted on the outer sleeve assembly and the inner sleeve assembly.

[0044] like Figure 1 As shown, the locking rod 11 is processed with a long locking pin hole, and the top of the locking rod 11 is processed with a hexagonal countersunk hole. A top screw 13 is installed below the hexagonal countersunk hole. The top screw 13 has an external thread. The top screw 13 is threadedly connected to the locking rod 11 through the external thread. The top of the top screw 13 has a hexagonal countersunk hole. The top screw 13 can be rotated to move left and right along the axis of the locking rod 11 by inserting a hexagonal wrench into the hexagonal countersunk hole of the top screw 13. The locking rod 11 is limitedly connected to the locking sleeve 15 by a retaining spring 14. The locking rod 11 and the cable sleeve 15 cannot move along the axial direction of the locking rod 11, and the locking rod 11 can rotate freely in the locking sleeve 15; the rotation angle of the locking rod 11 can be easily adjusted by inserting a hexagonal wrench into the hexagonal countersunk hole at the top of the locking rod 11.

[0045] As a specific embodiment of the present invention, if the spring 5 needs to be replaced, the first bolt 4 at the left end of the spring 5 needs to be removed, the first stop 3 at the left end is taken out, and then the first spring lock hook 2 at the left end is taken out, and the inner sleeve 6 can be smoothly pulled out from the left end of the spring 5; similarly, the second bolt 16 at the right end of the spring 5, the second stop 10 at the right end is taken out, and then the second spring lock hook 9 at the right end is taken out, and the outer sleeve 7 can be smoothly pulled out from the right end of the spring 5.

[0046] As a specific embodiment of the present invention, when the assembled spring 5 is compressed to a specified length by a spring compressor, the locking rod 11 is rotated with a hexagonal wrench so that the pin hole of the locking rod 11 is aligned with the pin hole 17 of the outer sleeve, and the locking pin 12 is inserted. In this way, the separation spring can be taken out of the compressor for testing or arrowing.

[0047] As a specific embodiment of the present invention, if the elastic force difference measured of the assembled separation spring is too large to meet the use requirements, a hexagonal wrench can be used to adjust the top screw 13 installed inside the locking rod 11. The top screw 13 can be moved left and right to adjust the compression length of the spring 5, thereby adjusting the force of the spring 5. By adjusting the top screw 13, the compression force of the spring 5 can be adjusted to the required tolerance range.

[0048] The beneficial effects achieved by this application are as follows:

[0049] (1) The present application facilitates the assembly and replacement of the spring, and can also adjust the compression length of the separation spring, thereby adjusting the compression force value of the separation spring to within a tolerance range.

[0050] (2) The first spring lock hook and the second spring lock hook of the present application can firmly fix the spring on the inner sleeve assembly and the outer sleeve assembly. The spring will not be separated from the first spring lock hook and the second spring lock hook during the extension and work process, and is very safe to use. The assembled separated spring no longer has to go through the screening and elimination process, which saves resources and reduces the R&D, manufacturing, and launch costs.

[0051] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0052] In the description of the present application, the word "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0053] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An arrow-mounted separation spring device, characterized in that: It includes an inner sleeve assembly, an outer sleeve assembly, a spring, a first lock hook assembly, a second lock hook assembly and a locking adjustment mechanism; The outer sleeve assembly is sleeved on the outside of the inner sleeve assembly, and the outer sleeve assembly is movably connected to the inner sleeve assembly, and one end of the outer sleeve assembly extends out of the outside of the inner sleeve assembly; The spring is sleeved on the outer circumference of the inner sleeve assembly and the outer sleeve assembly, one end of the spring is connected to the inner sleeve assembly, and the other end is connected to the outer sleeve assembly; The first locking hook assembly is installed at one end of the inner sleeve assembly connected to the spring, and is used to lock and connect one end of the spring to the inner sleeve assembly; The second locking hook assembly is mounted on one end of the outer sleeve assembly connected to the spring, and is used to lock and connect the other end of the spring to the outer sleeve assembly; The locking adjustment mechanism is connected to the inner sleeve assembly and the outer sleeve assembly. The locking adjustment mechanism is used to adjust the relative movement of the inner sleeve assembly and the outer sleeve assembly, adjust the length of the spring, and lock and fix the inner sleeve assembly and the outer sleeve assembly in a fixed connection after the inner sleeve assembly and the outer sleeve assembly move relatively into place.

2. The arrow-on-arrow separation spring device according to claim 1, characterized in that: The inner sleeve assembly comprises: an inner sleeve base, an inner sleeve and a locking sleeve; The inner sleeve base and the locking sleeve are fixedly connected to the two ends of the inner sleeve respectively.

3. The arrow-on-arrow separation spring device according to claim 2, characterized in that: The outer sleeve assembly comprises: an outer sleeve base and an outer sleeve; The outer sleeve base is fixedly connected to one end of the outer sleeve away from the inner sleeve base.

4. The arrow-on-arrow separation spring device according to claim 3, characterized in that: The first locking hook assembly is fixedly connected to the inner sleeve base, and the second locking hook assembly is fixedly connected to the outer sleeve base; One end of the spring abuts against the inner sleeve base, and the other end abuts against the outer sleeve base; The first locking hook assembly and the second locking hook assembly are respectively locked and connected to two ends of the spring.

5. The arrow-on-arrow separation spring device according to claim 1, characterized in that: The locking and adjusting mechanism comprises: a locking rod and a locking pin; The locking rod is connected to the inner sleeve assembly, and the locking rod and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly; The locking rod has a locking pin hole, and the outer sleeve assembly has a plurality of outer sleeve pin holes, which are spaced apart and distributed along the length direction of the outer sleeve assembly; After the locking pin hole is aligned with any one of the outer sleeve pin holes, the locking pin is inserted into the aligned locking pin hole and the outer sleeve pin hole to lock and connect the inner sleeve assembly and the outer sleeve assembly.

6. The arrow-on-arrow separation spring device according to claim 2, characterized in that: The locking and adjusting mechanism comprises: a locking rod and a locking pin; The locking rod is connected to the locking sleeve, and the locking rod and the inner sleeve assembly move synchronously along the axial direction of the inner sleeve assembly; The locking rod is located inside the outer sleeve assembly, and the locking rod coincides with the center lines of the inner sleeve assembly and the outer sleeve assembly; The locking rod has a locking pin hole, and the outer sleeve assembly has a plurality of outer sleeve pin holes, which are spaced apart and distributed along the length direction of the outer sleeve assembly; After the locking pin hole is aligned with any one of the outer sleeve pin holes, the locking pin is inserted into the aligned locking pin hole and the outer sleeve pin hole to lock and connect the inner sleeve assembly and the outer sleeve assembly.

7. The arrow-on-arrow separation spring device according to claim 6, characterized in that: The locking rod is connected to the locking sleeve via a retaining spring, and the retaining spring limits the relative movement between the locking rod and the locking sleeve in the axial direction of the locking rod, while allowing the locking rod and the locking sleeve to rotate relative to each other.

8. The arrow-on-arrow separation spring device according to claim 1, characterized in that: The first lock hook assembly comprises: a first spring lock hook, a first stop and a first bolt; The first spring lock hook has an oblique hook surface; The first spring lock hook hooks the inner arc surface of the spring through the oblique hook surface; The first stop presses the first spring lock hook; The first stop is fixedly connected to the end of the inner sleeve assembly through the first bolt.

9. The arrow-on-arrow separation spring device according to claim 1, characterized in that: The second lock hook assembly includes: a second spring lock hook, a second stop and a second bolt; The second spring lock hook has an oblique hook surface; The second spring lock hook hooks the inner arc surface of the spring through the oblique hook surface; The second stop presses the second spring lock hook; The second stop is fixedly connected to the end of the outer sleeve assembly through the second bolt.

10. The arrow-on-arrow separation spring device according to claim 5 or 6, characterized in that: The locking pin hole is an oblong hole, and the locking pin hole is arranged perpendicular to the axial direction of the locking rod; The locking rod is internally threaded with a top screw, and the top screw is arranged along the axial direction of the locking rod; The top screw is inserted into the locking pin hole, and after the top screw is rotated, the top screw moves along the axial direction of the locking rod, and the top screw is used to adjust the position of the locking pin in the locking pin hole.

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