Igniter strength testing tool

Abstract

The invention discloses an igniter strength test tool, and aims to provide an igniter strength test tool capable of improving test comprehensiveness, test precision and test efficiency. The tool comprises a tool clamp, the base is provided with a sensor mounting port; the supporting frame is detachably connected with the base; the fixing top cover is connected with the supporting frame in a pressing mode, the fixing top cover and the base are both connected with the supporting frame in a sealed mode, the supporting frame and the base are both provided with communicated testing cavities, the sensor installation opening is communicated with the testing cavities, and the base and the fixing top cover are both movably connected with the tool clamp; the main body cushion block is connected with the fixed top cover, and a medicine cup limiting hole is formed in the main body cushion block; the filling block is connected with the test cavity of the support frame; the spongy cushion is connected with the supporting frame, and the filling block is connected with the spongy cushion; and the wire outlet groove is of an end face concave structure for fixing the top cover. The method has the beneficial effects that the test comprehensiveness, the test precision and the test efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ignition tool testing fixtures, and particularly to an ignition tool strength testing fixture. Background Art

[0002] When the industry usually conducts ignition tool strength tests on automotive safety systems, the side wall and the injection molded part of the ignition tool are wrapped in the fixture. In this way, the test result is only the strength of the top of the ignition tool (the part exposed outside the fixture), which makes it difficult for the test fixture to comprehensively and actually reflect the strength of the injection molded part. Usually, the material of the injection molded part is PA66 nylon, and its strength is weaker than that of the metal part. When the generator detonates, the injection molded part will fail first. The injection molded strength can better reflect the strength of the ignition tool. In addition, the structural stability of the test fixture affects the test accuracy. At the same time, during continuous testing, it is necessary to loosen and lock the fixing pins of the ignition tool through the fixture structure, which further affects the test accuracy and efficiency. Summary of the Invention

[0003] The present invention is to overcome the deficiencies in the prior art that the test fixture has low comprehensiveness in testing the strength of the ignition tool and the structure of the test fixture reduces the overall test accuracy and efficiency, and provides an ignition tool strength testing fixture that improves the test comprehensiveness, test accuracy and efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions: An ignition tool strength testing fixture, characterized by comprising a tooling clamp; a base, the base is provided with a sensor mounting port; a support frame, the support frame is detachably connected to the base; a fixed top cover, the fixed top cover is press-connected to the support frame, both the fixed top cover and the base are hermetically connected to the support frame, the support frame and the base are both provided with a connected test cavity, the sensor mounting port is connected to the test cavity, and both the base and the fixed top cover are movably connected to the tooling clamp; a main body spacer, the main body spacer is connected to the fixed top cover, the main body spacer is provided with a medicine cup limiting hole, and the medicine cup limiting hole is connected to the test cavity; a filling plug, the filling plug is connected to the test cavity of the support frame, and there is a gap between the filling plug and the main body spacer and it is set as a reserved cavity; a sponge pad, the sponge pad is connected to the support frame, and the filling plug is connected to the sponge pad; a wire outlet groove, the wire outlet groove is a concave structure on the end face of the fixed top cover.

[0005] The base, the support frame, and the fixed top cover are connected in sequence from bottom to top to form a detachable integral structure, so as to form a clamping test tooling for the igniter to be tested. Among them, the main body cushion block supports and positions one end of the igniter close to the connecting electrode wire. A filling plug block is connected to the test cavity of the support frame. A space is left between the main body cushion block and the filling plug block and set as a reserved cavity, while the filling plug block fills the combustion gap of the rest of the test cavity of the support frame, making the test closer to the real environment. The reserved cavity, as the reserved space, exposes the injection molded body part of the igniter in this pressure space after ignition, so as to be able to show the pressure resistance strength of the injection molded body when testing the strength of the igniter, preventing the test tooling from being limited to testing the strength of the top end face (metal body part) of the igniter. As the injection molded body, which is weaker than metal, can more comprehensively reflect the overall strength of the igniter when testing the strength of the igniter. The sensor installation port is used to install a pressure sensor, and the test result is reflected by transmitting the air pressure after ignition to the pressure sensor. The sponge pad supports the filling plug block to make the connection of the tooling structure more stable, and at the same time makes the structure easy to assemble, replace, and maintain; the support frame and the base are detachably connected, and the fixed top cover and the support frame are crimped, so that they can be quickly disassembled and installed with each other, realizing the clamping action to fix the igniter with the tooling, ensuring that both the fixed top cover and the base maintain a tight sealing connection with the support frame, preventing the reduction of pressure accuracy during the internal igniter test, and at the same time avoiding the fixed method that requires tools such as fixing pins and screws for disassembly and assembly, thus facilitating the rapid loading and unloading of the igniter. In addition, both the base and the fixed top cover are movably connected to the tooling clamp, so that the structure for clamping the igniter is clamped and fixed, so as to realize the batch continuous test requirement and ensure the test stability; the wire outlet groove is convenient for the electrode wire to be pulled out from the test tooling to adapt to the rapid fixing of the igniter by the tooling clamp. It achieves the effects of improving the comprehensiveness of the igniter strength test of the test tooling, improving the test accuracy and stability, easy assembly and replacement maintenance of the structure, facilitating the loading and unloading assembly of the igniter, and realizing efficient batch continuous testing.

[0006] Preferably, the structural shape of the support frame is T-shaped. The support frame includes a support cover part and a connecting part. The connecting part is vertically connected to the support cover part as an integral structure. Sealing rings are embedded on the upper end face, the lower end face of the support cover part, and the outer side face of the connecting part. The fixed top cover is crimped to the upper end face of the support cover part. The support frame is inserted into the test cavity of the base through the connecting part. The support frame is vertically connected by the support cover part and the connecting part as a whole and is T-shaped, so that it is convenient for the support frame to be inserted into the test cavity of the base through the connecting part and connected as a whole. When the upper end face of the support cover part is in contact with the fixed top cover through the sealing ring, the sealing ring is pressed tightly for sealing, and the lower end face and the connecting part are hermetically connected to the base through the sealing ring, thereby realizing the high sealing of the connection of the three tooling structures and ensuring the accuracy of the strength test. It achieves the effects of rapid assembly of the test tooling structure, high assembly sealing performance, and thus ensuring high test accuracy.

[0007] Preferably, the test chamber of the support frame includes a lower transition chamber and an upper mounting chamber. The filling plug and the sponge pad are connected to the upper mounting chamber. The reserved chamber and the upper mounting chamber are connected and have the same diameter. The diameter of the lower transition chamber is larger than that of the upper mounting chamber, and the diameter of the test chamber of the support frame is larger than that of the lower transition chamber. The test chamber of the support frame consists of two parts: the lower transition chamber and the upper mounting chamber. The lower transition chamber is used to connect the upper mounting chamber and the test chamber of the base. At the same time, the inner diameters of the upper mounting chamber, the lower transition chamber, and the test chamber of the base gradually increase to further simulate the real environment from the generator to the outlet of the generator, so as to improve the test accuracy. The filling plug and the sponge pad are connected to the part of the ignition tool combustion chamber in the upper mounting chamber connection, which can test the injection molded body part while ensuring an environment similar to that during the ignition of the generator. This achieves the effect of further improving the strength test accuracy of the test tooling.

[0008] Preferably, the upper end face of the filling plug is provided with a guiding inclined surface, which is inclined towards the inner wall of the filling plug. The upper end face and the inner wall surface of the filling plug are composed of a horizontal plane, a guiding inclined surface, and a connecting inner wall surface, so that the upper end face of the filling plug is provided with an inward chamfer, which can prevent the release of pressure from being blocked during the test of the injection molded body, and provide a diversion for the pressure airflow to complete the test. At the same time, the obliquely arranged surface is convenient for the placement of the ignition tool. This achieves the effect of improving the test accuracy of the test work and the convenience of placing the ignition tool.

[0009] Preferably, the lower end face of the fixed top cover is provided with a medicine cup pressing groove, which is connected to the wire outlet groove. The lower end face of the fixed top cover presses against the upper end face of the ignition tool through the medicine cup pressing groove, preventing the ignition tool from moving upward under force, and at the same time positioning the connection position and stability of the ignition tool. The medicine cup pressing groove is connected to the wire outlet groove, so that the electrode wire extends along the wire outlet groove after the ignition tool is fixed. This achieves the effect of improving the assembly efficiency and stability of the ignition tool in the test tooling.

[0010] Preferably, the medicine cup pressing groove is provided with a limiting groove, and the main body pad is inserted into the limiting groove. The connecting corners of the groove walls between the limiting grooves are rounded. The top surface of the limiting groove is connected to the medicine cup pressing groove, and the connecting corner between the side wall of the limiting groove and the lower end face of the fixed top cover is chamfered. There is a sunken limiting groove at the notch of the medicine cup pressing groove to position and place the main body pad, so as to fix the main body of the ignition tool through the main body pad and the limiting hole of the medicine cup pressing groove, making the ignition tool stable in the test tooling. In addition, the connecting corners of the groove walls between the limiting grooves are rounded, and the connecting corner between the side wall of the limiting groove and the lower end face of the fixed top cover is chamfered, reducing the contact friction between the main body pad and the fixed top cover, and thus facilitating the installation and removal of the main body pad in the limiting groove, which is convenient for maintenance and replacement of the main body pad. This achieves the effect that the structure of the test tooling is convenient for assembly and maintenance and ensures high test accuracy.

[0011] Preferably, the surface of the main body cushion block includes a first side surface, a second side surface, and a third side surface. The first side surface and the second side surface are in contact with the limiting groove, and the third side surface is in contact with the end surface of the supporting cover part. The connecting corners of the first side surface, the second side surface, and the third side surface are all chamfered. The inner wall surface of the annular structure of the main body cushion block is in a special-shaped annular structure. The outer side surface includes the first side surface, the second side surface, and the third side surface connected by chamfered corners, further reducing the contact friction between the main body cushion block and the fixed top cover. The structure of the test tooling is further convenient for assembly and maintenance and ensures high test accuracy.

[0012] Preferably, the surface of the main body cushion block includes a fourth side surface, and the fourth side surface is the hole wall of the medicine cup limiting hole. The connecting corners of the fourth side surface and the third side surface are all chamfered into rounded corners. The inner wall of the main body cushion block is the hole wall of the limiting hole and is set as the fourth side surface. The shape of the hole wall of the fourth side surface is matched with the surface shape of the igniter to fit and limit the igniter. At the same time, the third side surface is the lower end surface of the main body cushion block, and the corner with the fourth side surface is a rounded corner, reducing the contact area between the main body cushion block and the igniter. At the same time, when the igniter is fixed in the limiting hole, more parts of the injection molding body are exposed to participate in the strength test. The effect of further improving the comprehensiveness and accuracy of the strength test is achieved.

[0013] Preferably, the wire outlet groove includes a sunken groove and a side groove. The sunken groove is the depression on the upper end surface of the fixed top cover placed in the medicine cup pressing groove, and the side groove is the depression on the side surface of the fixed top cover. The side groove is connected to the upper groove of the sunken groove. The wire outlet groove is composed of two parts, the sunken groove and the side groove. The sunken groove is a depressed structure extending from the upper end surface of the fixed top cover and communicating with the medicine cup pressing groove. At the same time, a side groove communicating with the sunken groove on the upper end surface is opened on the side surface of the fixed top cover. While the sunken groove gives the electrode wire repeated movement space to prevent breakage, the electrode wire can be pulled out from the side, thereby preventing the clamping of the vertical fixed top cover end surface by the tooling clamp from being affected. The effect of ensuring the stable connection and communication of the electrode wire and improving the fixing stability of the test tooling to ensure the test accuracy is achieved.

[0014] Preferably, the base is provided with a bottom plate, and the bottom plate is detachably connected to the lower end of the base. The bottom plate is connected to the lower end of the base to block the lower cavity opening of the test cavity, so as to block the test cavity. At the same time, the test cavity can be quickly cleaned of the combustion waste of the igniter through the detachable connection method, so as to facilitate continuous testing. The effect of improving the test efficiency is achieved.

[0015] The beneficial effects of the present invention are as follows: the test tooling improves the comprehensiveness of the strength test of the igniter; improves the test accuracy and stability; the structure is easy to assemble and replace for maintenance; it is convenient for the loading and unloading and assembly of the igniter to realize efficient batch continuous testing; the test tooling structure can be quickly assembled and has high assembly sealing performance; it ensures the stable connection and communication of the electrode wire. Description of the Drawings

[0016] Figure 1is the perspective view of the present invention; Figure 2 is Figure 1 the sectional view of; Figure 3 is Figure 1 the sectional view of; Figure 4 is Figure 3 the enlarged view at position A in; Figure 5 is Figure 4 the enlarged view at position B in; Figure 6 is the schematic installation diagram of the igniter fixed to the tooling fixture; Figure 7 is the sectional view of the igniter fixed.

[0017] In the figure: 1. Tooling fixture, 2. Base, 3. Sensor installation port, 4. Support frame, 5. Fixed top cover, 6. Test chamber, 7. Main body cushion block, 8. Medicine cup limit hole, 9. Filling plug block, 10. Reserved cavity, 11. Sponge pad, 12. Wire outlet groove, 13. Support cover part, 14. Connection part, 15. Sealing ring, 16. Lower transition cavity, 17. Upper installation cavity, 18. Guide inclined plane, 19. Medicine cup pressing groove, 20. Limit groove, 21. First side, 22. Second side, 23. Third side, 24. Fourth side, 25. Sinking groove, 26. Side groove, 27. Bottom plate, 28. Pressing groove, 29. Igniter medicine cup, 30. Electrode wire. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0019] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0020] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and numerical values of the components set forth in these embodiments do not limit the scope of the present application. For ease of description, spatial relative terms such as "upper", "lower", "left", "right", etc. are used in the embodiments to describe the relationship of one element or feature shown in the figure with respect to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device during use or operation. For example, if the device in the figure is inverted, the element described as being "below" other elements or features will be located "above" the other elements or features. Thus, the exemplary term "lower" can include both upper and lower orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. At the same time, it should be understood that, for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, processes, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, processes, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0021] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning, and thus should not be construed as limiting the protection scope of the present application.

[0022] Embodiment 1: As Figure 1 、 2As shown in FIGS. 6, a testing tool for the strength of an igniter includes a tooling clamp 1; a base 2 provided with a sensor mounting port 3; a support frame 4 detachably connected to the base 2; a fixed top cover 5 press-connected to the support frame 4, and both the fixed top cover 5 and the base 2 are hermetically connected to the support frame 4. The support frame 4 and the base 2 are both provided with a connected testing cavity 6, and the sensor mounting port 3 is connected to the testing cavity 6. Both the base 2 and the fixed top cover 5 are movably connected to the tooling clamp 1; a main body spacer 7 connected to the fixed top cover 5, with a medicine cup limiting hole 8 provided on the main body spacer, and the medicine cup limiting hole 8 is connected to the testing cavity 6; a filling plug 9 connected to the testing cavity 6 of the support frame 4, with a gap left between the filling plug 9 and the main body spacer 7 and set as a reserved cavity 10; a sponge pad 11 connected to the support frame 4, and the filling plug 9 is connected to the sponge pad 11; a wire outlet groove 12, which is a concave structure on the end face of the fixed top cover 5.

[0023] As Figures 2 - 4 shown, the structural shape of the support frame 4 is T-shaped. The support frame 4 includes a support cover part 13 and a connecting part 14, and the connecting part 14 is vertically connected to the support cover part 13 as an integral structure. Sealing rings 15 are embedded on the upper end face, lower end face of the support cover part 13 and the outer side face of the connecting part 14. The fixed top cover 5 is press-connected to the upper end face of the support cover part 13, and the support frame 4 is inserted into the testing cavity 6 of the base 2 through the connecting part 14.

[0024] As Figure 2 shown, the testing cavity 6 of the support frame 4 includes a lower transition cavity 16 and an upper installation cavity 17. The filling plug 9 and the sponge pad 11 are connected to the upper installation cavity 17. The reserved cavity 10 and the upper installation cavity 17 are connected and have the same diameter chamber. The diameter of the lower transition cavity 16 is larger than that of the upper installation cavity 17, and the diameter of the testing cavity 6 of the support frame 4 is larger than that of the lower transition cavity 16.

[0025] As Figure 4 、 5 shown, the upper end face of the filling plug 9 is provided with a guiding inclined surface 18, which is inclined towards the inner wall of the filling plug 9. The lower end face of the fixed top cover 5 is provided with a medicine cup pressing groove 19, and the medicine cup pressing groove 19 is connected to the wire outlet groove 12.

[0026] As Figure 4 、 5 shown, the medicine cup pressing groove 19 is provided with a limiting groove 20, and the main body spacer 7 is inserted into the limiting groove 20. The connecting corner of the groove walls between the limiting grooves 20 is rounded. The top surface of the limiting groove 20 is connected to the medicine cup pressing groove 19, and the connecting corner of the groove side wall of the limiting groove 20 and the lower end face of the fixed top cover 5 is chamfered.

[0027] As Figure 5As shown, the surface of the main body spacer 7 includes a first side surface 21, a second side surface 22, and a third side surface 23. The first side surface 21 and the second side surface 22 are in contact with the limiting groove 20, and the third side surface 23 is in contact with the end surface of the support cover portion 13. The connecting corners of the first side surface 21, the second side surface 22, and the third side surface 23 are all chamfered. The surface of the main body spacer 7 includes a fourth side surface 24. The fourth side surface 24 is the hole wall of the medicine cup limiting hole 8, and the connecting corners of the fourth side surface 24 and the third side surface 23 are all chamfered to be rounded corners.

[0028] As Figure 2 , 4 shown, the wire outlet groove 12 includes a sunken groove 25 and a side groove 26. The sunken groove 25 is a depression where the upper end surface of the fixed top cover 5 is placed in the medicine cup pressing groove 19, and the side groove 26 is a depression on the side surface of the fixed top cover 5. The side groove 26 is connected to the upper groove of the sunken groove 25.

[0029] As Figure 2 , 3 shown, the base 2 is provided with a bottom plate 27, and the bottom plate 27 is detachably connected to the lower end of the base 2.

[0030] As Figures 1 - 7 shown: The sensor installation port 3 is reserved for installing a pressure sensor (not shown in the figure), so that the air flow passes through the pressure sensor to test the strength of the igniter.

[0031] The tooling clamp 1 is provided with a pressing groove 28. The pressing groove 28 is slightly smaller than the height from the base 2 to the fixed top cover 5, so that after the igniter is fixed and placed in the pressing groove 28 of the tooling clamp 1, it can be pressed tightly to prevent air leakage. Both sides of the pressing groove 28 are open to expand the space to improve the convenience of loading and unloading. The groove surface at the notch of the pressing groove 28 is an open inclined surface for easy and quick placement and removal.

[0032] A sealing ring (not shown in the figure) is sleeved on the bottom plate 27. The bottom plate 27 is connected to the cavity opening of the test cavity 6 at the lower end of the base 2 by buckling, so that the bottom plate 27 can close the test cavity 6 of the base 2 to prevent air leakage. The sealing ring is in contact with the end face of the cavity opening of the test cavity 6 when the bottom plate 27 is pressed on the base 2, and is tightly closed by the clamping of the tooling clamp 1.

[0033] A sealing gasket (not shown in the figure) is embedded in the medicine cup pressing groove 19, so that when the fixed top cover 5 presses and fixes the igniter, it can fit the surface to make the inside more sealed.

[0034] Testing the strength through tooling, including the igniter medicine cup 29 and the electrode wire 30 to be tested: During use: Pass the electrode wire 30 of the igniter 20 through the wire outlet groove 11, place the igniter medicine cup 29 on the main body spacer 7, and close the fixed top cover 5 and the support frame 4. During this period, the medicine cup pressing groove 19 presses the igniter medicine cup 29 and fits with the main body spacer 7 (as Figure 7As shown, place the overall fixed top cover 5 to the base 2 into the pressure groove 28 of the tooling fixture 1, so that the pressure groove 28 tightly clamps the fixed top cover 5 to the base 2 from above and below (as Figure 6 shown). The electrode wire 30 is energized to ignite the ignition charge cup 29 to generate air pressure. The air pressure in the test space left through the reserved cavity 10 is used to test the strength of the side of the ignition charge cup 29, including the injection molded part, and part of the air pressure is used to test the strength of the end of the ignition charge cup 29. Finally, it flows out through the pressure sensor in the sensor mounting port 3 to complete the strength test of the ignition charge cup 29.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ignition tool strength test tool, characterized in that: include Tool clamp (1); A base (2), wherein the base (2) is provided with a sensor mounting opening (3); A support frame (4), wherein the support frame (4) and the base (2) are detachably connected; A fixed top cover (5), the fixed top cover (5) is crimped with the support frame (4), the fixed top cover (5) and the base (2) are both sealedly connected to the support frame (4), the support frame (4) and the base (2) are both provided with a communicating test cavity (6), the sensor installation port (3) is communicated with the test cavity (6), and the base (2) and the fixed top cover (5) are both movably connected to the fixture clamp (1); A main body cushion block (7), the main body cushion block (7) being connected to the fixed top cover (5), the main body cushion block being provided with a medicine cup limiting hole (8), the medicine cup limiting hole (8) being connected to the test cavity (6); A filling block (9), the filling block (9) being connected to the test cavity (6) of the support frame (4), a gap being left between the filling block (9) and the main cushion block (7) and being set as a reserved cavity (10); A sponge pad (11), the sponge pad (11) being connected to the support frame (4), and the filling block (9) being connected to the sponge pad (11); A wire outlet groove (12), wherein the wire outlet groove (12) is an end surface recessed structure of the fixed top cover (5).

2. The ignition tool strength test tool according to claim 1, characterized in that: The support frame (4) has a T-shaped structure. The support frame (4) comprises a support cover portion (13) and a connecting portion (14). The connecting portion (14) is vertically connected to the support cover portion (13) to form an integrated structure. The upper end surface, the lower end surface of the support cover portion (13) and the outer side surface of the connecting portion (14) are all embedded with a sealing ring (15). The fixed top cover (5) is crimped to the upper end surface of the support cover portion (13). The support frame (4) is plugged into the test cavity (6) of the base (2) through the connecting portion (1) (4).

3. The ignition tool strength test tool according to claim 2, characterized in that: The test cavity (6) of the support frame (4) comprises a lower transition cavity (16) and an upper installation cavity (17); the filling block (9) and the sponge pad (11) are connected to the upper installation cavity (17); the reserved cavity (10) and the upper installation cavity (17) are interconnected cavities of the same diameter; the diameter of the lower transition cavity (16) is larger than that of the upper installation cavity (17); and the diameter of the test cavity (6) of the support frame (4) is larger than that of the lower transition cavity (16).

4. The ignition tool strength test tool according to claim 1, characterized in that: The upper end surface of the filling block (9) is provided with a guide slope (18), and the guide slope (18) is arranged inclined toward the inner wall of the filling block (9).

5. The ignition tool strength test tool according to claim 1, characterized in that: The lower end surface of the fixed top cover (5) is provided with a medicine cup pressing groove (19), and the medicine cup pressing groove (19) is connected to the wire outlet groove (12).

6. The ignition tool strength test tool according to claim 5, characterized in that: The medicine cup pressing groove (19) is provided with a limiting groove (20), the main body pad (7) is plugged into the limiting groove (20), the groove wall connection corners between the limiting grooves (20) are rounded, the groove top surface of the limiting groove (20) is connected to the medicine cup pressing groove (19), and the groove side wall of the limiting groove (20) is connected to the lower end surface of the fixed top cover (5) at a chamfered corner.

7. The ignition tool strength test tool according to claim 1, characterized in that: The surface of the main cushion block (7) comprises a first side surface (21), a second side surface (22) and a third side surface (23); the first side surface (21) and the second side surface (22) are in contact with the limiting groove (20); the third side surface (23) is in contact with the end surface of the support cover (13); and the connecting corners of the first side surface (21), the second side surface (22) and the third side surface (23) are all chamfered.

8. The ignition tool strength test tool according to claim 7, characterized in that: The surface of the main cushion block (7) comprises a fourth side surface (24), the fourth side surface (24) being the hole wall of the medicine cup limiting hole (8), and the connecting corners of the fourth side surface (24) and the third side surface (23) are both chamfered and rounded.

9. An ignition tool strength test tool according to claim 5 or 6, characterized in that: The outlet groove (12) comprises a sinking groove (25) and a side groove (26); the sinking groove (25) is a depression formed by placing the upper end surface of the fixed top cover (5) in the medicine cup pressing groove (19); the side groove (26) is a depression formed on the side surface of the fixed top cover (5); and the side groove (26) is connected to the upper groove of the sinking groove (25).

10. The ignition tool strength test tool according to claim 1, characterized in that: The base (2) is provided with a bottom plate (27), and the bottom plate (27) is detachably connected to the lower end of the base (2).

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