Buffer spring installation tool

Abstract

The utility model relates to a buffer spring installation tool which comprises at least two pull rods, first outer threads are arranged at the first end of each pull rod, and the first ends of the pull rods are connected with first nuts; the bottom plate is provided with a first through hole allowing the core rod to penetrate through and at least two first pull rod holes allowing the pull rods to penetrate through, the at least two first pull rod holes are evenly distributed around the first through hole, and the bottom plate is used for abutting against the first end of the buffer spring; the top plate is provided with a second through hole allowing the core rod to penetrate through and at least two second pull rod holes allowing the pull rods to penetrate through, and the at least two second pull rod holes are evenly distributed around the second through hole; the top plate is used for abutting against the second end of the buffer spring. When the buffer spring mounting tool provided by the embodiment of the utility model is used for mounting the buffer spring, on one hand, the first nut can be rotated by virtue of tools such as a wrench, so that time and labor are saved, and on the other hand, the safety of mounting the buffer spring is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of buffer installation tool angles, and in particular, to a buffer spring installation tool. Background Art

[0002] The elastic medium in the elastic buffer is mostly a ring spring with high stiffness. During the installation process, the ring spring needs to be compressed and locked on the core rod through a locking nut. Since the ring spring has high stiffness and is difficult to compress, during the process of compressing the ring spring and installing it on the core rod, the locking nut is rotated to the first few turns of the core rod. The thread teeth are not enough to withstand the restoring force of the ring spring, which can easily lead to damage of the thread teeth, separation of the locking nut from the core rod, and even injury to the assembler, which is dangerous. Utility Model Content

[0003] The purpose of the present invention is to provide a buffer spring installation tool, which can solve the technical problems of difficult and dangerous installation of buffer springs in related technologies.

[0004] The technical solution is as follows:

[0005] A buffer spring installation tool is used to assist in installing a core rod assembly of a buffer, the core rod assembly comprising a core rod, a buffer spring, a movable retaining ring and a locking nut; the core rod comprises a connecting section and a spring installation section, a fixed retaining ring is provided on the spring installation section, one end of the buffer spring abuts against the fixed retaining ring, and the other end abuts against the movable retaining ring, the buffer spring is screwed to the spring installation section through the locking nut and is compressed and sleeved on the core rod; the buffer spring installation tool comprises: a pull rod, the number of the pull rods is at least two, and the first end of each pull rod has a first external thread The first end of the pull rod is connected to a first nut; a bottom plate, the bottom plate has a first through hole for the core rod to pass through, and at least two first pull rod holes for the pull rod to pass through, at least two of the first pull rod holes are evenly distributed around the first through hole, and the bottom plate is used to push against the first end of the buffer spring; and a top plate, the top plate has a second through hole for the core rod to pass through, and at least two second pull rod holes for the pull rod to pass through, at least two of the second pull rod holes are evenly distributed around the second through hole; the top plate is used to push against the second end of the buffer spring.

[0006] Optionally, the second end of the pull rod has a second external thread, and the second end of the pull rod is connected to a second nut.

[0007] Optionally, the diameter of the fixed retaining ring is larger than the diameter of the spring mounting section, and the inner diameter of the first through hole is larger than the diameter of the spring mounting section and smaller than the outer diameter of the fixed retaining ring.

[0008] Optionally, the connecting section has a positioning hole; the buffer spring installation tool further includes a positioning pin, which can be inserted into the positioning hole, and the length of the positioning pin is greater than the diameter of the first through hole.

[0009] Optionally, there are two pull rods, and both ends of the positioning pins have arc-shaped notches that match the corresponding pull rods, and the arc-shaped notch of each positioning pin is in contact with the outer surface of the corresponding pull rod.

[0010] Optionally, the length of the first external thread is greater than the length of the second external thread.

[0011] Optionally, at least two of the first nuts are installed on the first end of each of the pull rods, and at least two of the second nuts are installed on the second end of each of the pull rods.

[0012] Optionally, there are multiple base plates.

[0013] Optionally, there are multiple top plates.

[0014] Through the above technical solution, the beneficial effects brought about by the technical solution provided by the embodiment of the present application include at least:

[0015] In the buffer spring installation tool of the present application, when installing the buffer spring to the core rod, each pull rod is sequentially inserted through the first pull rod hole of the bottom plate and the second pull rod hole of the top plate. The buffer spring is placed between the bottom plate and the top plate. The spring installation section of the core rod is sequentially inserted through the first through hole of the bottom plate, the center through hole of the buffer spring, and the second through hole of the top plate. A wrench can be used to screw in the first nut until the end of the spring installation section protrudes from the buffer spring by at least the height of the locking nut. The locking nut is then screwed onto the spring installation section. Finally, the pull rods, bottom plate, and top plate are removed to complete the installation of the buffer spring. The buffer spring is installed using the buffer spring installation tool provided in the embodiment of the present application. On the one hand, the first nut can be rotated with the help of a wrench or other tools, which has the advantages of saving time and effort. On the other hand, after the buffer spring is compressed by the pull rod and the first nut, the exposed installation size of the spring installation section of the core rod is longer, and the locking nut can be completely installed on the spring installation section of the core rod, so that the internal thread of the locking nut is fully matched with the first external thread of the nut installation section, thereby avoiding the possibility of the locking nut falling out due to poor fit between the locking nut and the spring installation section, thereby improving the safety of installing the buffer spring.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 is the main view of the buffer;

[0019] Figure 2 yes Figure 1 a top sectional view of the middle buffer;

[0020] Figure 3 is a top view of the core rod assembly in the buffer;

[0021] Figure 4 This is a front view of a buffer spring installation tool provided by an embodiment of the present disclosure;

[0022] Figure 5 is a side view of a bottom plate of a buffer spring installation tool provided by an embodiment of the present disclosure;

[0023] Figure 6 is a side view of a top plate in a buffer spring installation tool provided by an embodiment of the present disclosure;

[0024] Figure 7 yes Figure 3 Core rod assembly and Figure 4 Schematic diagram of the middle buffer spring installation tooling assembled together.

[0025] Description of Reference Numerals

[0026] 101-pull rod; 1011-first external thread; 1012-second external thread; 102-first nut; 103-bottom plate; 1031-first through hole; 1032-first pull rod hole; 104-top plate; 1041-second through hole; 1042-second pull rod hole; 105-second nut; 106-locating pin; 200-core rod assembly; 201-core rod; 2011-connecting section; 2012-spring mounting section; 2013-fixed retaining ring; 2014-locating hole; 202-buffer spring; 203-movable retaining ring; 204-locking nut; 300-cylinder shell; 400-sleeve. DETAILED DESCRIPTION

[0027] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0028] In the present disclosure, unless otherwise specified, directional words such as "upper" and "lower" generally refer to the "upper" and "lower" relative to each other in the direction of gravity when the corresponding parts are in use, and "inside" and "outside" refer to the "inside" and "outside" relative to the outline of the corresponding parts themselves. In addition, the terms "first" and "second" used in the present disclosure are to distinguish one element from another and do not have order and importance. In the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limitations on the present disclosure.

[0029] Please refer to Figures 1 to 3 The buffer may include a core rod assembly 200, a cylinder shell 300 and a screw sleeve 400; the core rod assembly 200 includes a core rod 201, a buffer spring 202, a movable retaining ring 203 and a locking nut 204; the core rod 201 includes a connecting section 2011 and a spring mounting section 2012, a fixed retaining ring 2013 is provided on the spring mounting section 2012, one end of the buffer spring 202 is in contact with the fixed retaining ring 2013, and the other end is in contact with the movable retaining ring 20 3 abuts, the buffer spring 202 is screwed to the core rod 201 through the locking nut 204 and is compressed and sleeved on the core rod 201; the tail end of the cylindrical shell 300 is provided with an internal thread matching the screw sleeve 400, the connecting section 2011 of the core rod 201 passes through the first section of the cylindrical shell 300, the connecting section 2011 of the core rod 201 is inside the cylindrical shell 300, and the screw sleeve 400 is screwed into the tail end of the cylindrical shell 300 to fix the core rod assembly 200 to the cylindrical shell 300.

[0030] Since the buffer spring 202 used in the buffer is mostly a spring with high rigidity and difficult to compress, such as a ring spring, during the process of assembling the buffer, the buffer spring 202 needs to be compressed and installed on the spring installation section 2012 of the core rod 201 through the locking nut 204 and the movable retaining ring 203. The end of the spring installation section 2012 has an external thread. When installing the buffer spring 202, the staff needs to compress the buffer spring 202 first and install the locking nut 204 on the spring installation section 2012. Since the buffer spring 202 is difficult to compress, during the first few turns of screwing the locking nut 204, due to the lack of fit between the locking nut 204 and the core rod 201 and the large reaction force of the buffer spring 202, the internal thread of the locking nut 204 may be damaged, or even the locking nut 204 may be ejected from the spring installation section 2012 of the core rod 201, causing injury to the installer.

[0031] Please refer to Figure 4 The embodiment of the present disclosure provides a buffer spring installation tool 100, including: a pull rod 101, a bottom plate 103, and a top plate 104.

[0032] There are at least two tie rods 101, and the first end of each tie rod 101 has a first external thread 1011. The first end of the tie rod 101 is connected to a first nut 102; please refer to Figure 5 The bottom plate 103 has a first through hole 1031 for the core rod 201 to pass through, and at least two first pull rod holes 1032 for the pull rod 101 to pass through. The at least two first pull rod holes 1032 are evenly distributed around the first through hole 1031. The bottom plate 103 is used to support the first end of the buffer spring 202; please refer to Figure 6 The top plate 104 has a second through hole 1041 for the core rod 201 to pass through, and at least two second pull rod holes 1042 for the pull rod 101 to pass through, and the at least two second pull rod holes 1042 are evenly distributed around the second through hole 1041; the top plate 104 is used to support the second end of the buffer spring 202.

[0033] In the embodiment of the present application, when installing the buffer spring 202 to the core rod 201, each tie rod 101 is sequentially passed through the first tie rod hole 1032 of the bottom plate 103 and the second tie rod hole 1042 of the top plate 104. The buffer spring 202 is placed between the bottom plate 103 and the top plate 104. The spring mounting section 2012 of the core rod 201 is sequentially passed through the first through hole 1031 of the bottom plate 103, the center through hole of the buffer spring 202, and the second through hole 1041 of the top plate 104. The first nut 102 can be screwed in with a wrench until the end of the spring mounting section 2012 protrudes from the buffer spring 202 by at least the height of the locking nut 204. The locking nut 204 is then screwed onto the spring mounting section 2012. Finally, the tie rod 101, the bottom plate 103, and the top plate 104 are removed to complete the installation of the buffer spring 202.

[0034] The buffer spring 202 is installed using the buffer spring installation tool 100 provided in the embodiment of the present application. On the one hand, the first nut 102 can be rotated with the help of a wrench or other tools, which has the advantages of saving time and effort. On the other hand, after the buffer spring 202 is compressed by the pull rod 101 and the first nut 102, the exposed installation size of the spring installation section 2012 of the core rod 201 is longer, and the locking nut 204 can be completely installed on the spring installation section 2012 of the core rod 201, so that the internal thread of the locking nut 204 is fully matched with the first external thread 1011 of the nut installation section, thereby avoiding the possibility of the locking nut 204 falling off due to the lack of fit between the locking nut 204 and the spring installation section 2012, thereby improving the safety of installing the buffer spring 202.

[0035] It should be noted that the second end of the pull rod 101 can be a stopper or a screw head integrally formed with the pull rod 101, and this application does not impose any limitation on this.

[0036] Please refer to Figure 4In an embodiment of the present application, the second end of the pull rod 101 may have a second external thread 1012, and the second end of the pull rod 101 may be connected to a second nut 105. This design facilitates disassembly and storage of the buffer spring 202 after installation by the installer. Furthermore, the second external thread 1012 and the second nut 105 on the second end of the pull rod 101 allow the installer to screw the first nut 102 into the first end of the pull rod 101 and the second nut 105 into the second end of the pull rod 101 simultaneously, thereby improving the installation efficiency of the buffer spring 202.

[0037] Please refer to Figure 4 In an embodiment of the present application, the diameter of the fixed retaining ring 2013 is larger than the diameter of the spring mounting section 2012 , and the inner diameter of the first through hole 1031 is larger than the diameter of the spring mounting section 2012 and smaller than the outer diameter of the fixed retaining ring 2013 .

[0038] In this case, since the inner diameter of the first through hole 1031 of the bottom plate 103 is larger than the diameter of the core rod 201 and smaller than the outer diameter of the fixed retaining ring 2013, the bottom plate 103 is blocked outside the fixed retaining ring 2013, and the top plate 104 approaches the bottom plate 103 during the screwing-in process of the first nut 102.

[0039] In the examples of this application, please refer to Figure 3 , the connecting section 2011 has a positioning hole 2014; the buffer spring installation tool 100 also includes a positioning pin 106, the positioning pin 106 can be inserted into the positioning hole 2014, and the length of the positioning pin 106 is greater than the diameter of the first through hole 1031.

[0040] In an embodiment of the present application, the positioning hole 2014 can make use of the existing mounting hole on the connecting section 2011 of the core rod 201. Since the connecting section 2011 of the core rod 201 is used to connect the buffered object, it is usually designed with a mounting hole. Using the existing mounting hole as the positioning hole 2014 for positioning can reduce the amount of processing.

[0041] In the embodiment of the present application, there are two tie rods 101, and the two ends of the positioning pins 106 each have an arcuate notch that matches the corresponding tie rod 101. The arcuate notch of each positioning pin 106 is in contact with the outer surface of the corresponding tie rod 101. In this case, the positioning pins 106 are unlikely to fall off the connecting section 2011 of the core rod 201, thereby avoiding the danger caused by the positioning pins 106 falling off, thereby improving the safety of the buffer spring installation tool 100.

[0042] In the examples of this application, please refer to Figure 4The length of the first external thread 1011 is greater than the length of the second external thread 1012. Because the second end of the pull rod 101 has a locating pin 106 and a locating hole 2014, the base plate 103 is stationary relative to the core rod 201. Therefore, the first nut 102 at the first end of the pull rod 101 is typically rotated. Therefore, the first external thread 1011 at the first end of the pull rod 101 is longer than the second external thread 1012 at the second end. The length of the first external thread 1011 is sufficient to allow the end of the spring mounting section 2012 of the core rod 201 to protrude from the buffer spring 202 to a height of at least one locking nut 204.

[0043] In order to further improve the safety of the buffer spring installation tool 100 , at least two first nuts 102 are installed on the first end of each pull rod 101 , and at least two second nuts 105 are installed on the second end of each pull rod 101 .

[0044] To further enhance the safety of the buffer spring installation tool 100, when encountering a buffer spring 202 that is particularly rigid and difficult to compress, multiple bottom plates 103 can be stacked to increase strength. Therefore, the number of bottom plates 103 can be multiple. Similarly, when encountering a buffer spring 202 that is particularly rigid and difficult to compress, the number of top plates 104 can be multiple for safety reasons.

[0045] The specific implementation principle of the embodiment of the present disclosure is as follows: first, the positioning pin 106 is passed through the positioning hole 2014 of the pull rod 101, the bottom plate 103 is mounted on the connecting section 2011 of the pull rod 101 and is located outside the positioning pin 106, then the first end of the pull rod 101 is passed through the first pull rod hole 1032 of the bottom plate 103, the buffer spring 202 is inserted into the spring mounting section 2012 of the core rod 201, and the movable retaining ring 203 is mounted on the end of the buffer spring 202 away from the bottom plate 103, the top plate 104 is mounted on the pull rod 101 through the second pull rod hole 1042, and is locked with the first nut 102. The first nut 102 can be screwed in with a wrench until the end of the spring mounting section 2012 protrudes from the buffer spring 202 by at least the height of the locking nut 204, and the locking nut 204 is screwed to the spring mounting section 2012. Finally, the pull rod 101, the bottom plate 103 and the top plate 104 are removed to complete the installation of the buffer spring 202. The buffer spring installation tool 100 disclosed in the present invention is used to assist in the installation of the buffer spring 202. On the one hand, the first nut 102 can be rotated with the help of a wrench or other tools, which has the advantages of saving time and labor. On the other hand, after the buffer spring 202 is compressed by the pull rod 101 and the first nut 102, the spring installation section 2012 of the core rod 201 protrudes from the buffer spring 202 with a longer installation dimension, which enables the locking nut 204 to be completely installed in the spring installation section 2012, so that the internal thread of the locking nut 204 is fully matched with the first external thread 1011 of the spring installation section 2012, thereby reducing the possibility of the locking nut 204 coming off due to insufficient matching between the locking nut 204 and the spring installation section 2012, thereby improving the safety of installing the buffer spring 202.

[0046] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0047] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0048] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A buffer spring installation tool, used for assisting the installation of a core rod assembly (200) of a buffer, the core rod assembly (200) comprising a core rod (201), a buffer spring (202), a movable retaining ring (203) and a locking nut (204); the core rod (201) comprising a connecting section (2011) and a spring installation section (2012), a fixed retaining ring (2013) being provided on the spring installation section (2012), one end of the buffer spring (202) abutting against the fixed retaining ring (2013), and the other end abutting against the movable retaining ring (203), the buffer spring (202) being threadedly connected to the spring installation section (2012) through the locking nut (204), and being compressed and sleeved on the core rod (201); characterized in that The buffer spring installation tool comprises: A pull rod (101), wherein the number of the pull rods (101) is at least two, the first end of each pull rod (101) has a first external thread (1011), and the first end of the pull rod (101) is connected to a first nut (102); a bottom plate (103), the bottom plate (103) having a first through hole (1031) for the core rod (201) to pass through, and at least two first pull rod holes (1032) for the pull rod (101) to pass through, the at least two first pull rod holes (1032) being evenly distributed around the first through hole (1031), the bottom plate (103) being used to abut against the first end of the buffer spring (202); and, A top plate (104), the top plate (104) having a second through hole (1041) for the core rod (201) to pass through, and at least two second pull rod holes (1042) for the pull rod (101) to pass through, at least two second pull rod holes (1042) are evenly distributed around the second through hole (1041); the top plate (104) is used to abut the second end of the buffer spring (202).

2. The buffer spring installation tool according to claim 1, characterized in that: The second end of the pull rod (101) has a second external thread (1012), and the second end of the pull rod (101) is connected to a second nut (105).

3. The buffer spring installation tool according to claim 1, characterized in that: The diameter of the fixed retaining ring (2013) is larger than the diameter of the spring mounting section (2012), and the inner diameter of the first through hole (1031) is larger than the diameter of the spring mounting section (2012) and smaller than the outer diameter of the fixed retaining ring (2013).

4. The buffer spring installation tool according to claim 1, characterized in that: The connecting section (2011) has a positioning hole (2014); the buffer spring installation tool also includes a positioning pin (106), the positioning pin (106) can be inserted into the positioning hole (2014), and the length of the positioning pin (106) is greater than the diameter of the first through hole (1031).

5. The buffer spring installation tool according to claim 4, characterized in that: There are two pull rods (101), and the two ends of the positioning pins (106) respectively have arc-shaped notches that match the corresponding pull rods (101). The arc-shaped notch of each positioning pin (106) is in contact with the outer surface of the corresponding pull rod (101).

6. The buffer spring installation tool according to claim 2, characterized in that: The length of the first external thread (1011) is greater than the length of the second external thread (1012).

7. The buffer spring installation tool according to claim 2, characterized in that: At least two of the first nuts (102) are installed at the first end of each of the pull rods (101), and at least two of the second nuts (105) are installed at the second end of each of the pull rods (101).

8. The buffer spring installation tool according to claim 1, characterized in that: The number of the bottom plates (103) is multiple.

9. The buffer spring installation tool according to claim 1, characterized in that: There are multiple top plates (104).

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