Combined measuring tool for regular checking assembly clearance of ejection seat
By providing a combination measurement tool for fixed inspection and assembly gap of ejection seat, the flip piece and feeler gauge with locking function can accurately measure the spacing and hook lock gap of ejection seat head umbrella box installation, and solve the problem of The problems of large measurement errors, inconvenient operation and frequent switching tools in the prior art are improved, and measurement efficiency and convenience are improved.
Patent Information
- Application Number
- CN202421310602.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, when measuring the spacing and hook lock gap of the ejection seat head to the umbrella box, the error is large, the operation is inconvenient, and different measurement tools are frequently switched, which is troublesome and inconvenient for portability and storage.
Provide a combination measurement tool for fixed inspection and assembly gap of ejection seats. Through a set of combined measurement tools, the spacing and hook lock installation gap of two models of ejection seat heads and hook lock installation gap can be measured. It adopts locking function The flip piece and feelter gauge can extend and retract the feelter gauge by damping shaft or bolts, making it easier to operate.
The measurement is more accurate, convenient, fast and efficient, and it is more convenient to carry and store, which solves the problems of large measurement errors, inconvenient operation and frequent switching tools in the existing technology, simplifies the detection process and improves the detection efficiency.
Smart Images
Figure CN222438702U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring tools, in particular to a combined measuring tool for fixed inspection and assembly clearance of an ejection seat. Background Art
[0002] The ejection seat is one of the important equipments of combat aircraft for pilots to eject and save their lives in critical moments. During the regular inspection of a certain type of ejection seat, due to the maintenance work such as disassembly and disassembly, the gap size of some important parts and parts will inevitably change. When the headrest parachute box is restored to the ejection seat and the ejection seat is installed on the aircraft, in order to ensure the normal ejection function of the ejection seat, the installation technical requirements for the ejection seat are stipulated as follows: the installation spacing of the headrest parachute box of one type of ejection seat is 304±1mm, and the installation spacing of the headrest parachute box of another type of ejection seat is 297±1mm. The gap of the hook lock of the two types of ejection seats is 0.1~0.8mm.
[0003] For measuring the spacing of the headrest parachute box installation, the current method is to use a ruler for measurement, which has a large measurement error and is inconvenient to operate; for measuring the hook lock gap, a set of feeler gauges are currently used, which results in the need to frequently switch between different measuring tools when measuring the spacing of the headrest parachute box installation and the hook lock installation gap, which is cumbersome to operate and inconvenient for the operator to carry and keep. Utility Model Content
[0004] In view of this, the utility model provides an ejection seat regular inspection assembly gap combination measuring tool, which can be used to measure the spacing of the headrest parachute box installation and the hook lock installation spacing of two types of ejection seats. The measurement is more accurate, convenient, fast and efficient, and it is convenient to carry and keep. It solves the problem that the current measurement error of measuring the spacing of the headrest parachute box installation by a ruler is large and the operation is inconvenient; when a set of feeler gauges is used to measure the hook lock spacing, different measuring tools need to be frequently switched, which is troublesome to operate and inconvenient for the operator to carry and keep.
[0005] In order to solve the above technical problems, the utility model provides an ejection seat regular inspection assembly gap combination measuring tool, including a combination measuring tool, which is used to measure the installation spacing of the headrest parachute box, the combination measuring tool includes a measuring template, and the left and right sides of the measuring template are respectively provided with flip pieces with a locking function, and each flip piece is provided with a feeler gauge. The utility model can measure the installation spacing of the headrest parachute box and the hook lock installation gap of two types of ejection seats through a set of combined measuring tools. The measurement is more accurate, convenient, fast and efficient, and it is convenient to carry and keep. There is no need to use multiple sets of detection tools to cooperate to realize the detection operation, which greatly simplifies the detection process and improves the detection efficiency.
[0006] The flipping member is a damping shaft, a through hole matched with the damping shaft is opened on the measuring template, the damping shaft is rotatably arranged in the through hole, and the feeler gauge is fixed on the damping shaft. The utility model can rotatably install the feeler gauge in the through hole of the measuring template through the damping shaft, and the feeler gauge can be pushed to rotate around the damping shaft to be extended and retracted, which is more convenient to operate.
[0007] The flipping piece is a bolt, a threaded hole matched with the bolt is opened on the measuring template, and the feeler gauge is arranged on the nut of the bolt. The utility model can realize the rotation of the bolt with the feeler gauge by tightening or loosening the bolt, so as to realize the extension and retraction of the feeler gauge, and the operation is more convenient.
[0008] A through slot is provided on the upper part of the measuring sample, and the feeler gauge is located on the left and right sides of the measuring sample. The utility model can facilitate the operator to reach in and grasp the measuring sample through the through slot, and insert the measuring sample into the part to be tested, which makes the operation more convenient.
[0009] There are two through slots, which are spaced apart in the upper and lower parts on the measuring template. The length of the through slots is 200 mm, the width is 12 mm, and the thickness is 5 mm.
[0010] The overall dimensions of the measuring sample are as follows: the length of the upper part is 296mm and 303mm from top to bottom, and the dimensions of the lower part are 305mm and 298mm from top to bottom. The width of the measuring sample is 50mm and the thickness is 5mm.
[0011] The thickness of the feeler gauge on one side of the measuring template is 0.1 mm, and the thickness of the feeler gauge on the other side of the measuring template is 0.8 mm. The material of the feeler gauge is 65Mn manganese steel.
[0012] The measuring sample is a plate made of polytetrafluoroethylene material. The measuring sample made of polytetrafluoroethylene material has the advantages of high hardness, wear resistance, light weight, self-lubricating properties, and is easy to insert for testing.
[0013] The upper and lower surfaces of the measuring template are marked with 304-1, 297-1, 304+1, and 297+1. The upper and lower surfaces of the feeler gauge on one side are marked with 0.1, and the upper and lower surfaces of the feeler gauge on the other side are marked with 0.8. The purpose of this is to facilitate the operator to quickly find the end that meets the measurement requirements for measurement, thereby greatly improving the measurement efficiency.
[0014] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:
[0015] 1. The utility model can measure the installation spacing of the headrest parachute box and the installation clearance of the hook lock of two types of ejection seats by a set of combined measuring tools. The measurement is more accurate, convenient, fast and efficient, and it is convenient to carry and keep. It solves the problem that the measurement error of the installation spacing of the headrest parachute box using a ruler is large and the operation is inconvenient; when a set of feeler gauges is used to measure the hook lock clearance, different measuring tools need to be frequently switched, which is troublesome to operate and inconvenient for the operator to carry and keep.
[0016] 2. The utility model can rotate the feeler gauge to be installed in the through hole of the measuring sample through the damping shaft, and the feeler gauge can be pushed to rotate around the damping shaft to be extended and retracted, which is more convenient to operate.
[0017] 3. The utility model can facilitate the operator's hand to reach in and grasp the sample through the through slot, and insert the measurement sample into the part to be tested, which makes the operation more convenient.
[0018] 4. The utility model selects a measuring sample made of polytetrafluoroethylene material for measurement because the material has the advantages of high hardness, wear resistance, light weight, self-lubricating properties, and is easy to insert for testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of an embodiment of the ejection seat fixed inspection assembly gap combination measuring tool and the flip part of the utility model;
[0020] Figure 2 This is an enlarged view of the structure at A of the utility model;
[0021] Figure 3 It is a structural schematic diagram of another embodiment of the ejection seat fixed inspection assembly gap combined measuring tool and the flip member of the utility model;
[0022] Figure 4 This is an enlarged view of the structure at B of the utility model.
[0023] Explanation of reference numerals: 100, combined measuring tool; 110, measuring template; 120, flip part; 121, damping shaft; 122, bolt; 130, feeler gauge; 140, through slot. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.
[0025] like Figure 1-4 As shown: This embodiment provides an ejection seat regular inspection assembly gap combination measuring tool, including a combination measuring tool 100, which is used to measure the spacing of the headrest parachute box installation. The combination measuring tool 100 includes a measuring template 110. The left and right sides of the measuring template 110 are respectively provided with flip pieces 120 with locking functions, and each flip piece 120 is provided with a feeler gauge 130. The utility model can use a set of combined measuring tools to measure the spacing of the headrest parachute box installation and the hook lock installation gap of two types of ejection seats. The measurement is more accurate, convenient, fast and efficient, and it is convenient to carry and keep. There is no need to use multiple sets of detection tools to cooperate to realize the detection operation, which greatly simplifies the detection process and improves the detection efficiency.
[0026] According to one embodiment of the utility model, Figure 1 and Figure 2 As shown, the flip member 120 is a damping shaft 121, and a through hole compatible with the damping shaft 121 is opened on the measuring template 110. The damping shaft 121 is rotatably set in the through hole, and the feeler gauge 130 is fixed on the damping shaft 121. The damping shaft 121 relies on the friction between itself and the through hole to achieve position locking, and under the action of external force, the damping shaft 121 can be pushed to carry the feeler gauge 130 to overcome the friction force and rotate the feeler gauge 130 to a suitable angle under the action of the damping shaft 121 rotating along the through hole, which is more convenient to operate. The utility model can rotatably install the feeler gauge 130 in the through hole of the measuring template 110 through the damping shaft 121, and can push the feeler gauge 130 to rotate around the damping shaft 121 to extend and retract, which is more convenient to operate.
[0027] According to another embodiment of the present invention, Figure 3 and Figure 4 As shown, the flip member 120 is a bolt 122, a threaded hole matched with the bolt 122 is opened on the measuring template 110, and the feeler gauge 130 is set on the nut of the bolt 122. The feeler gauge 130 can be conveniently and quickly adjusted by turning the contour bolt to rotate the feeler gauge 130 along the threaded hole. The utility model can realize the rotation of the bolt 122 with the feeler gauge 130 by tightening or loosening the bolt 122, and realize the extension and retraction of the feeler gauge 130, which is more convenient to operate.
[0028] According to another embodiment of the present invention, Figure 1 and Figure 2As shown, the outer dimensions of the measuring sample 110 are: the length of the upper part is 296mm and 303mm from top to bottom, respectively, and the size of the lower part is 305mm and 298mm from top to bottom, respectively. The width of the measuring sample 110 is 50mm and the thickness is 5mm. The measuring sample 110 is a plate made of polytetrafluoroethylene material. The measuring sample 110 made of polytetrafluoroethylene material has the advantages of high hardness, wear resistance, light weight, self-lubricating properties, and is easy to insert into the test. The upper part of the measuring sample 110 is provided with a through slot 140, and the through slot 140 has two, and the upper and lower The intervals are arranged on the measuring template 110, the length of the through slot 140 is 200mm, the width is 12mm, and the thickness is 5mm. The feeler gauge 130 is located on the left and right sides of the measuring template 110. The thickness of the feeler gauge 130 located on one side of the measuring template 110 is 0.1mm, and the thickness of the feeler gauge 130 located on the other side of the measuring template 110 is 0.8mm. The material of the feeler gauge 130 is 65Mn manganese steel. The utility model can facilitate the operator's hand to reach in and grasp through the through slot 140, and insert the measuring sample into the part to be detected, which is more convenient to operate.
[0029] According to another embodiment of the present invention, Figure 1 and Figure 3 As shown, the upper surface and the lower surface of the measuring template 110 are marked with 304-1, 297-1, 304+1, and 297+1, the upper surface and the lower surface of the feeler gauge 130 on one side are marked with 0.1, and the upper surface and the lower surface of the feeler gauge 130 on the other side are marked with 0.8. The purpose of this is to facilitate the operator to quickly find the end that meets the measurement requirements for measurement operations, thereby greatly improving the measurement efficiency.
[0030] The use of the utility model:
[0031] First of all, it should be made clear that the measuring tool involved in the utility model is mainly used to measure the gap of the ejection seat regular inspection assembly to detect whether it meets the assembly requirements. The utility model takes the ejection seat headrest parachute box installation spacing of one model as 304±1mm, the ejection seat headrest parachute box installation spacing of another model as 297±1mm, and the ejection seat hook lock gap of the two models as an example to describe its usage in detail. When it is necessary to measure the ejection seat headrest parachute box installation spacing and hook lock installation spacing of 304±1mm and 0.1~0.8mm, the operation steps are as follows:
[0032] S1: Confirm that the ejection seat ammunition has been replaced and the parachute gun body, hook lock and other parts are in good appearance.
[0033] S2: Grip the handle of the combined measuring tool 100 measuring template 110 (the thumb of the operator goes deep into the lower through slot 140, and one or more of the other fingers are inserted into the upper through slot 140 to pick up the measuring template 110), and then slowly put the side marked as 304-1 and the side marked as 304+1 into the shooting parachute gun body to test whether they can be put in. If the side marked as 304-1 can be put in but the side marked as 304+1 cannot be put in, the requirement is met, otherwise it does not meet the requirement.
[0034] S3: After the ejection seat is installed on the aircraft, the feeler gauge 130 is rotated to the extended state, and the 0.1 feeler gauge 130 and the 0.8 feeler gauge 130 are respectively inserted into the hook lock for testing to determine whether they can be inserted. If the 0.1 feeler gauge 130 can be inserted but the 0.8 feeler gauge 130 cannot be inserted, the requirement is met, otherwise the requirement is not met;
[0035] When it is necessary to measure the spacing of the ejection seat headrest parachute box installation with a spacing of 297±1mm and a gap of 0.1~0.8mm and the hook lock installation gap, the operation steps are as follows:
[0036] S1: Confirm that the ejection seat ammunition has been replaced and the parachute gun body, hook lock and other parts are in good appearance.
[0037] S2: Grip the handle of the measuring template 110 of the combined measuring tool 100 (the thumb of the operator goes deep into the through slot 140 at the bottom, and one or more of the other fingers are inserted into the through slot 140 at the top to pick up the measuring template 110), and then slowly put the side marked as 297-1 and the side marked as 297+1 into the body of the parachute gun to test whether they can be put in. If the side marked as 297-1 can be put in but the side marked as 297+1 cannot be put in, the requirement is met, otherwise it does not meet the requirement.
[0038] S3: After the ejection seat is installed on the aircraft, the feeler gauge 130 is rotated to the extended state, and the 0.1 feeler gauge 130 and the 0.8 feeler gauge 130 are respectively inserted into the hook lock for testing to determine whether they can be inserted. If the 0.1 feeler gauge 130 can be inserted but the 0.8 feeler gauge 130 cannot be inserted, the requirement is met, otherwise the requirement is not met;
[0039] The utility model can measure the installation spacing of the headrest parachute box and the installation clearance of the hook lock of two types of ejection seats by a set of combined measuring tools, and the measurement is more accurate, convenient, fast and efficient, and is convenient to carry and keep, which solves the problem that the measurement error of the installation spacing of the headrest parachute box measured by a ruler is large and the operation is inconvenient; when a set of feeler gauges 130 are used to measure the hook lock clearance, different measuring tools need to be frequently switched, which is troublesome to operate and inconvenient for the operator to carry and keep.
[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0041] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A combined measuring tool for checking the assembly gap of an ejection seat, comprising a combined measuring tool (100), used to measure the spacing of the headrest and parachute box installation, characterized in that: The combined measuring tool (100) comprises a measuring template (110), and flip pieces (120) with a locking function are respectively arranged on the left and right sides of the measuring template (110), and each flip piece (120) is provided with a feeler gauge (130).
2. The ejection seat regular inspection assembly gap combined measuring tool according to claim 1, characterized in that: The flip member (120) is a damping shaft (121), a through hole matching the damping shaft (121) is provided on the measuring template (110), the damping shaft (121) is rotatably arranged in the through hole, and the feeler gauge (130) is fixed on the damping shaft (121).
3. The ejection seat regular inspection assembly gap combination measuring tool according to claim 1, characterized in that: The flip member (120) is a bolt (122), a threaded hole matching the bolt (122) is provided on the measuring template (110), and the feeler gauge (130) is arranged on the nut of the bolt (122).
4. The ejection seat regular inspection assembly gap combined measuring tool as claimed in claim 2, characterized in that: A through slot (140) is provided on the upper portion of the measuring template (110), and a feeler gauge (130) is located on the left and right sides of the measuring template (110).
5. The ejection seat regular inspection assembly gap combined measuring tool according to claim 4, characterized in that: There are two through slots (140), which are arranged on the measuring template (110) at intervals in the upper and lower directions. The through slots (140) have a length of 200 mm, a width of 12 mm, and a thickness of 5 mm.
6. The ejection seat regular inspection assembly gap combined measuring tool according to claim 5, characterized in that: The outer dimensions of the measuring template (110) are as follows: the length of the upper portion is 296 mm and 303 mm from top to bottom, respectively; the dimensions of the lower portion are 305 mm and 298 mm from top to bottom, respectively; the width of the measuring template (110) is 50 mm, and the thickness is 5 mm.
7. The ejection seat inspection assembly clearance combination measuring tool according to claim 6, characterized in that: The thickness of the feeler gauge (130) on one side of the measuring template (110) is 0.1 mm, and the thickness of the feeler gauge (130) on the other side of the measuring template (110) is 0.8 mm.
8. The ejection seat regular inspection assembly gap combined measuring tool according to claim 7, characterized in that: The measurement sample (110) is a plate made of polytetrafluoroethylene material.
9. The ejection seat inspection assembly clearance combination measuring tool according to claim 8, characterized in that: The upper surface and the lower surface of the measuring template (110) are marked with 304-1, 297-1, 304+1, 297+1, the upper surface and the lower surface of the feeler gauge (130) on one side are marked with 0.1, and the upper surface and the lower surface of the feeler gauge (130) on the other side are marked with 0.8.