Pneumatic starting device and model test system with same

Abstract

The utility model discloses a pneumatic starting device which comprises a support, an adjusting mechanism and a driving mechanism, an energy storage mechanism and a firing pin are arranged in the support, the energy storage mechanism comprises a rack and an elastic piece, one end of the rack is connected with or abuts against the elastic piece, and the other end of the rack is connected with the firing pin. The adjusting structure comprises a knob and a gear which are fixedly connected, the knob is located on the outer side of the support, and the gear is in meshed connection with the rack; the driving mechanism comprises an air cylinder, a cylinder body of the air cylinder is installed on the outer side of the support, and the output end of the air cylinder extends into the support. The utility model further discloses a model test system which comprises a runway and a test model, the test model is provided with the pressure container, when the pneumatic starting device acts, the firing pin can stretch out to pierce the pressure container, and thrust generated by the container can push the test model to move at a high speed. By measuring the movement time of the test model, the air resistance condition borne by the test model can be judged; whether the aerodynamic configuration design is reasonable and scientific or not can be judged by observing the swinging and jumping conditions of the test model in the movement process.

Description

TECHNICAL FIELD

[0001] The utility model relates to model intelligent test technical field especially, relate to a pneumatic starting device and have model test system of this pneumatic starting device. BACKGROUND

[0002] In the product development process of the automobile and aerospace fields, it is usually necessary to verify whether the aerodynamic shape design of the automobile, aircraft, rocket and the like is scientific and reasonable, and the verification methods commonly used in the prior art include wind tunnel experiments and computer-aided analysis (CAE).

[0003] The wind tunnel experiment refers to placing an automobile, aircraft, rocket and the like in a wind tunnel, studying the gas flow and the interaction thereof with the model, so as to understand the aerodynamic characteristics of the actual automobile, aircraft, rocket and the like, and to provide a scientific data basis for the aerodynamic shape design of the above products. For example, the automobile wind tunnel test system for cooperating with the moving ground effect disclosed in the publication No. CN201464153U, and the wing wind tunnel model manufacturing method and wing wind tunnel model disclosed in the publication No. CN110186640B. The wind tunnel experiment has the following defects: a high cost is required for building the wind tunnel test device in the early stage, and the cost is high, which is difficult to apply to teaching and the like.

[0004] The computer-aided analysis (CAE) refers to simulating the aerodynamic characteristics of the automobile, aircraft, rocket and the like in the actual work by using a computer, and providing a scientific basis for the shape design and optimization of the actual product. For example, the automobile suspension and damping system simulation test and design platform based on multi-body dynamics disclosed in the publication No. CN102087670A, and the computer-aided simulation analysis method for a car disclosed in the publication No. CN1818914A. Although the computer-aided analysis does not require the construction of a test device and the production of a physical prototype or model, the cost is low, but because it is a computer simulation means, it has the defect of relatively low accuracy.

[0005] Therefore, there is an urgent need in the prior art to invent a model test device for verifying the aerodynamic shape design of a product, which has low cost and high accuracy. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the technical problems of the traditional method for verifying the aerodynamic shape design in the prior art, i.e. high cost or low accuracy, the utility model provides a pneumatic starting device and a model test system having the same.

[0007] The utility model employs the technical scheme that:

[0008] A pneumatic starting device comprises:

[0009] The support is internally provided with an energy storage mechanism and a striker, the energy storage mechanism comprises a rack and an elastic member, one end of the rack is connected with or abuts against the elastic member, and the other end is connected with the striker;

[0010] The adjusting mechanism comprises a knob and a gear, the knob and the gear are fixedly connected, the knob is located on the outside of the support, and the gear is in meshing connection with the rack;

[0011] The driving mechanism comprises a cylinder, the cylinder body of the cylinder is mounted on the outside of the support, and the output end of the cylinder extends into the support;

[0012] When the output end of the cylinder extends to a preset distance, the gear can be compressed to limit the movement of the rack; when the output end of the cylinder is retracted, the elastic member can push the striker out of the inside of the support through the rack.

[0013] By means of the above structural design, the pneumatic starting device realizes the extension and retraction of the striker through linkage of the energy storage mechanism, the driving mechanism and the adjusting mechanism, has the advantages of simple and reasonable structure, easy operation and the like, and can be repeatedly used through the action of the knob and the cylinder and the like, has a long service life, and is convenient for maintenance and repair.

[0014] Further, the support comprises a first support and a second support, the first support and the second support are adjacently and closely arranged, the cylinder body of the cylinder is mounted on the outside of the first support, the first support is provided with a cavity, and the elastic member is located in the cavity.

[0015] Further, the second support is provided with a through hole, an opening is arranged on the side of the through hole away from the first support, and the striker is slidably arranged in the through hole, so that the striker extends out of or retracts into the opening.

[0016] Further, the inside of the first support and / or the second support is provided with a containing cavity in communication with the through hole, and the striker is provided with a limiting portion which is slidably arranged in the containing cavity and used for limiting the movement distance of the striker.

[0017] Further, the limiting portion is an annular protruding structure formed by outward protrusion of the outer circumferential side of the striker.

[0018] Based on the same design idea, the utility model also provides a model test system comprising the above-mentioned pneumatic starting device, the model test system further comprises a runway and a test model located on the runway, the test model is provided with a pressure container, and the striker is arranged towards the pressure container.

[0019] Further, the model test system further comprises a timing device, a sensing device and a control device, the control device is used for controlling the action of the air cylinder, thereby controlling the test model to start moving; the sensing device is used for sensing whether the test model reaches a preset position; and the timing device is used for recording the moving time of the test model from starting moving to passing through the preset position.

[0020] Through the above structural design, the moving time of the test model can be measured, and the measured moving time can reflect the air movement resistance of different test models, thereby providing data basis for the aerodynamic shape design and optimization of the product corresponding to the test model.

[0021] Further, the control device comprises an electromagnetic valve and a start button, the start button is used for controlling the action of the electromagnetic valve, thereby controlling the action of the air cylinder; the sensing device comprises a photoelectric sensor installed below the through hole of the runway; and the timing device comprises a stopwatch and a support, the stopwatch is fixedly installed above the runway through the support.

[0022] Further, the runway comprises a plurality of runway sections and gates located between the runway sections, the gate comprises a door body, one end of the door body is hinged to one of the runway sections, and the other end is provided with a clamping plate; when the door body is lowered, the clamping plate abuts against a supporting piece of another runway section, so that the runway sections and the gate are combined to form a continuous complete runway.

[0023] Further, the model test system further comprises a rack, the rack comprises a supporting profile and a connecting profile, the upper end of the supporting profile is fixedly connected with the runway, and the two ends of the connecting profile are fixedly connected with the supporting profile.

[0024] In summary, the aerodynamic starting device and the model test system having the same provided by the utility model have at least the following technical effects compared with the prior art:

[0025] 1) The pneumatic starting device is used as a starting end of a model test system. Before use, the knob is manually rotated, the elastic member is compressed for energy storage through the intermeshing gear and rack, the output end of the air cylinder is extended to compress the gear, thereby limiting the rack movement; in use, the output end of the air cylinder is retracted, the gear is no longer pressed, at this time the elastic member compressed by the rack is quickly opened, the energy storage is quickly released, the rack pushes the striker to extend from the support, the striker pierces the pressure container of the test model to realize starting. Therefore, the pneumatic starting device has the advantages of simple and reasonable structure design, easy operation, etc., and can be repeatedly used through the action of the knob and the air cylinder, has long service life, and is convenient for maintenance, repair and other operations.

[0026] 2) The model test system of the utility model comprises a pneumatic starting device, a runway and a test model, the test model is provided with a pressure container, when the pneumatic starting device acts, the striker thereof can extend to pierce the pressure container, the thrust generated by the container can push the test model to move at high speed. By measuring the movement time of the test model, the air resistance suffered by the test model can be judged; by observing the swing and jumping of the test model in the movement process, whether the aerodynamic shape design of the test model is reasonable and scientific can be judged. Therefore, compared with the wind tunnel test, the model test system of the utility model does not need to spend high cost to build a test device, the cost is significantly reduced; compared with computer-aided analysis, the model test system of the utility model can comprehensively judge whether the aerodynamic shape design of the test model is scientific and reasonable in combination with the movement time data and the movement in the movement process, and the test precision is high. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure schematic view of the pneumatic starting device of the utility model;

[0028] Figure 2 It is an exploded view of the pneumatic starting device of the utility model;

[0029] Figure 3 It is a cross-sectional schematic view of the pneumatic starting device of the utility model;

[0030] Figure 4 It is a structure schematic view of the pneumatic starting device and the test model of the utility model;

[0031] Figure 5 It is a structure schematic view of the pneumatic starting device and the pressure container of the utility model;

[0032] Figure 6 It is a structure schematic view of the model test system of the utility model;

[0033] Figure 7 It is Figure 6 The A part shown in the enlarged schematic view is partially enlarged;

[0034] Figure 8 For Figure 6 B part local enlarged schematic view as shown in;

[0035] Figure 9 For Figure 6 C part local enlarged schematic view as shown in;

[0036] Wherein, the meaning of the reference signs is as follows:

[0037] 1, pneumatic starting device;11, first support;111, cavity;12, second support;121, through hole;13, drive mechanism;131, cylinder;132, screw;14, adjusting mechanism;141, knob;142, gear;15, energy storage mechanism;151, rack;152, elastic member;16, striker;161, limit part;17, containing cavity;

[0038] 2, test model;21, pressure vessel;

[0039] 3, runway;31, baffle;32, partition;

[0040] 4, timing device;41, stopwatch;42, support;

[0041] 5, induction device;

[0042] 6, gate;61, door body;62, hinge;63, clamping plate;64, support;65, handle;

[0043] 7, rack;71, support profile;711, foot cup;72, connecting profile;73, connecting angle code;

[0044] 8, control device;81, electromagnetic valve;82, start button. DETAILED DESCRIPTION

[0045] In order to better understand and implement, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model.

[0046] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.

[0048] Embodiment 1

[0049] In the first embodiment of the application, a specific structural design scheme of the pneumatic starting device 1 is provided.

[0050] Referring to Figure 1 - Figure 3 In the technical scheme of this embodiment, the pneumatic starting device 1 includes a support, and an energy storage mechanism 15 and a striker 16 are arranged in the support. The energy storage mechanism 15 includes a rack 151 and an elastic member 152, one end of the rack 151 is connected or abuts against the elastic member 152, and the other end is connected with the striker 16. The energy storage mechanism 15 is used to store energy by compressing the elastic member 152, and quickly release the stored energy by removing the restriction on the elastic member 152, so as to quickly push out the striker 16 and pierce the high-pressure gas cylinder to complete the starting action of the model.

[0051] In particular, the elastic member 152 in this embodiment is preferably a spring, which exerts a pushing force on the rack 151 when compressed.

[0052] The pneumatic starting device 1 further includes an adjusting mechanism 14, which includes a knob 141 and a gear 142. The knob 141 and the gear 142 are fixedly connected, the knob 141 is located on the outside of the support, and the gear 142 is in meshing connection with the rack 151. The knob 141 is located on the outside of the support, which can facilitate the operator to rotate the knob 141 by hand to achieve control; the gear 142 is arranged in the support and is used to achieve energy storage operation of the energy storage mechanism 15 by rotating. In addition, the knob 141 and the gear 142 can be fixedly connected through a connecting shaft or the like. When the knob 141 is rotated by hand, the gear 142 can be driven to rotate synchronously, thereby achieving control of the rotation of the gear 142.

[0053] The pneumatic starting device 1 further includes a driving mechanism 13, which includes a cylinder 131 and a screw 132. The cylinder body of the cylinder 131 is mounted to the outside of the support through the screw 132, and the output end of the cylinder 131 is arranged to extend into the support. The output end of the cylinder 131 is telescopic, which is used to extend to press the gear 142 or retract to release the restriction on the gear 142.

[0054] In particular, the output end of the cylinder 131 is preferably a piston rod of the cylinder 131.

[0055] Through the above structural design, the operation process and principle of the pneumatic starting device 1 in this embodiment are as follows:

[0056] 1. Energy Storage Stage. Before use, the operator manually rotates the knob 141 of the adjustment mechanism 14, causing the gear 142 to rotate synchronously. Since the gear 142 and the rack 151 mesh with each other, the rack 151 can be driven to move horizontally along the path toward the elastic element 152, thereby compressing the elastic element 152 for energy storage. After compression, the output end of the cylinder 131 extends to press the gear 142, thereby restricting the movement of the rack 151. The elastic element 152 receives the pressing force and cannot be released, thus remaining in the energy storage state.

[0057] 2. Release phase. During use, the output end of the control cylinder 131 retracts, and the gear 142 is no longer compressed. At this time, the elastic element 152, which was compressed by the rack 151, quickly opens and its stored energy is released rapidly. The rack 151 pushes the firing pin 16 on the opposite side of the elastic element 152 to quickly extend from the support. The firing pin 16 punctures the pressure vessel of the test model to start the test.

[0058] Therefore, the pneumatic starting device 1 of this utility model realizes the extension and retraction of the striking pin 16 through the linkage of the energy storage mechanism 15, the drive mechanism 13 and the adjustment mechanism 14. It has the advantages of simple and reasonable structural design and easy operation. Moreover, it can be repeatedly used through the operation of the knob 141 and the cylinder 131, etc., with a long service life and convenient maintenance and repair.

[0059] See Figure 1 - Figure 3 As shown, in a preferred embodiment, the support includes a first support 11 and a second support 12. The first support 11 and the second support 12 are arranged adjacent to each other and can be assembled by bolts, screws or other connecting structures to form a support. Alternatively, they can be connected by applying materials such as glue or adhesive to the adjacent surfaces of the first support 11 and the second support 12. The specific connection or assembly method is not limited in this embodiment, as long as it enables the assembly and disassembly of the first support 11 and the second support 12.

[0060] Specifically, the cylinder body of cylinder 131 is mounted on the outside of the first support 11, and preferably on top of the first support 11. Screw 132 passes through the first support 11 and the cylinder body of cylinder 131 from bottom to top to achieve assembly. The output end of cylinder 131 extends downward into the interior of the first support 11, and controls the energy storage mechanism 15 through telescopic movement. The interior of the first support 11 has an inwardly recessed cavity 111, which is used to accommodate the elastic element 152 and provides positioning and limiting functions for the installation of the elastic element 152.

[0061] Optionally, the size of the cavity 111 is equal to or slightly larger than that of the elastic element 152, thereby facilitating the positioning and installation of the elastic element 152.

[0062] See Figure 2And Figure 3 As shown in the other preferred embodiment of the embodiment, the second support 12 is provided with a through hole 121, which is preferably horizontally arranged. The through hole 121 is provided with an opening away from one side of the first support 11, and at least part of the structure of the striker 16 is slidably arranged in the through hole 121, so that the striker 15 extends out of or retracts from the opening of the through hole 121. When the striker 15 extends out of the opening of the through hole 121, the starting action of the test model is completed by piercing the high-pressure gas cylinder; when the striker 15 retracts from the opening of the through hole 121, the reset action is completed. Thus, the pneumatic starting device 1 can be repeatedly used by the action of the striker 15 structure, and the structure design is simple and reasonable, and the operation is simple.

[0063] Referring to Figure 2 And Figure 3 As shown in the other preferred embodiment of the embodiment, the inside of the first support 11 and the inside of the second support 12 are respectively provided with a receiving cavity 17, or the inside of the first support 11 and the inside of the second support 12 are combined to form a receiving cavity 17, and the receiving cavity 17 is in communication with the through hole 121; the striker 16 is provided with a limiting portion 161, which is located in the receiving cavity 17 and can slide in the receiving cavity 17. Specifically, when the limiting portion 161 slides to the front and rear ends of the receiving cavity 17, it is limited and cannot continue to move, thereby limiting the displacement distance of the striker 16, and realizing the control of the displacement distance of the striker 16. Preferably, when the limiting portion 161 slides to the rear end of the receiving cavity 17, the tip portion of the striker 16 can extend out of the opening of the through hole 121, so as to pierce the gas cylinder; when the limiting portion 161 slides to the rear end of the receiving cavity 17, the connecting rack 151 of the striker 16 cannot continue to move back, thereby providing feedback to the operator rotating the knob, indicating that the elastic member 152 has been compressed to the final state, and there is no need to continue to rotate the knob 141 to store energy.

[0064] Further, referring to Figure 2 And Figure 3 As shown, the limiting portion 161 is an annular protruding structure formed by the outward protrusion of the outer circumferential side of the striker 16. The annular protruding structure can be an integral structure of the striker 16, or can be assembled on the outer circumferential side of the striker 16 through a connecting structure.

[0065] Embodiment 2

[0066] Based on the same design idea, the utility model also provides an embodiment of a model test system, which comprises the pneumatic starting device 1 described in the above embodiments.

[0067] Referring to Figure 4 - Figure 7As shown in the technical scheme of the embodiment, the model testing system further comprises a test model 2 and a runway 3, the test model 2 is located on the runway 3, a pressure container 21 is arranged at the tail end or near the tail end of the test model 2, and the firing pin 16 of the pneumatic starting device 1 is arranged towards the pressure container 21. When the pneumatic starting device 1 is in action, the firing pin 16 in the support thereof can be quickly extended to pierce the pressure container 21, and the thrust generated by the pressure container 21 can push the test model 2 to move at a high speed.

[0068] In particular, the pressure container 21 is preferably a high-pressure gas cylinder; the two sides of the runway 3 are provided with baffles 31 to prevent the test model 2 from deviating from the predetermined track and leaving the runway 3; and the middle part of the runway 3 is further provided with at least one partition plate, so as to divide the runway 3 into a plurality of test areas, and the simultaneous testing operation of a plurality of test models 2 can be realized, and the testing efficiency is improved.

[0069] Referring to Figure 6 - Figure 9 In a preferred scheme of the embodiment, the model testing system further comprises a timing device 4, a sensing device 5 and a control device 8.

[0070] The control device 8 is used to control the action of the air cylinder 131, that is, to control the extension or retraction of the output end of the air cylinder 131, so as to control whether the energy storage of the elastic member 152 of the energy storage mechanism 15 is released, and finally control whether the test model 2 starts to move; the sensing device 5 is used to sense whether the test model 2 reaches a preset position; and the timing device 4 is used to record the movement time of the test model 2 from the start of movement to passing through the preset position (that is, the position of the sensing device 5).

[0071] Through the above structural design manner, the movement time of the test model 2 can be measured, and the measured movement time can reflect the air movement resistance of different test models 2, so as to provide data basis for the pneumatic shape design and optimization of the product corresponding to the test model 2. At the same time, by observing the swing and up-and-down jumping of the test model in the movement process, the rationality of the pneumatic shape of the test model 2 can also be reflected, so as to provide a reference basis for the optimization design of the pneumatic model.

[0072] Further, referring to Figure 6 , Figure 7 and Figure 9As shown, the control device 8 comprises an electromagnetic valve 81 installed on the runway 3 and a start button 82 for controlling the electromagnetic valve 81 to act, thereby controlling the cylinder 131 to act, i.e. controlling the output end of the cylinder 131 to extend or retract, thereby controlling whether the test model 2 starts to move. The end or the position close to the end of the runway 3 is provided with a through hole, and the sensing device 5 comprises a photoelectric sensor installed below the through hole, which can sense the arrival action of the test model 2, so as to make the timing device 4 measure the movement time of the test model 2. The timing device 4 comprises a support 42 and at least one stopwatch 41, which is fixedly installed above the runway 3 through the support 42, for calculating the movement time of the test model 2 and displaying the movement time on the stopwatch 41, so as to facilitate the tester to intuitively view the test data.

[0073] Referring to Figure 6 and Figure 8 As shown, in another alternative of the embodiment, the runway 3 can be divided into a plurality of runway sections and gates 6 located between the runway sections, and a complete runway of a preset length is formed by the combination of the plurality of runway sections and the gates 6.

[0074] Taking one of the gates 6 and the runway sections on both sides of the gate 6 (hereinafter referred to as the first runway section and the second runway section) as an example:

[0075] The gate 6 comprises a door body 61, one end of the door body 61 is hinged to the first runway section through a hinge 62, and the other end is provided with a clamping plate 63; the second runway section is provided with a supporting piece 64, when the door body 61 is lowered, the clamping plate 63 and the supporting piece 64 of the second runway section abut, thereby supporting the door body 61. At this time, the upper sides of the first runway section, the door body 61 and the second runway section are located in the same plane, thereby forming a continuous complete runway by the combination of the plurality of runway sections and the gates 6.

[0076] A handle 65 is also installed on the door body 61, and the operator can pull the door body 61 to a certain height through the handle 65, thereby installing a handle 22 on the gate main body 21, so as to facilitate a person or other objects to cross through the model test system of the embodiment.

[0077] Referring to Figure 6 and Figure 7 As shown, in another alternative of the embodiment, the model test system further comprises a rack 7, and the rack 7 comprises a supporting profile 71 and a connecting profile 72. The supporting profile 71 is installed in the vertical direction, and the upper end thereof is fixedly connected with the runway 3, for supporting the runway 3; the connecting profile 72 is arranged in the horizontal direction, and the two ends thereof are fixedly connected with the supporting profile 71.

[0078] In addition, the bottom of the support profile 71 is also provided with a foot cup 711 as a support component of the bottom of the support profile 71, which is used to reduce vibration and noise and increase the carrying capacity and the like; the connecting profile 72 and the support profile 71 are also provided with a connecting angle code 73, which is used to realize the connection between the two, and also plays a role of reinforcing and stabilizing.

[0079] Therefore, compared with the wind tunnel test, the model test system of the utility model does not need to spend high cost to build the test device, and the cost is significantly reduced; compared with the computer-aided analysis, the model test system of the utility model can comprehensively judge whether the aerodynamic shape design of the test model is scientific and reasonable by combining the motion time data and the motion condition in the motion process, and the test precision is high.

[0080] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be pointed out that, for ordinary skilled persons in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A pneumatic actuation device, characterized in that The utility model relates to a model test system, including: Support, energy storage mechanism and firing pin are equipped in support, energy storage mechanism includes rack and elastic piece, one end of rack and elastic piece are connected or abut, the other end and firing pin are connected; Adjusting mechanism, the knob and gear fixed connection of adjusting mechanism, the knob is located the outside of support, gear and rack meshing connection; Driving mechanism, the cylinder body of driving mechanism includes pneumatic cylinder, the cylinder body is installed to the outside of support, the output end of pneumatic cylinder stretches in the inside setting of support; Wherein, when the output end of pneumatic cylinder stretches to the preset distance, can compress the gear to limit the rack activity, when the output end of pneumatic cylinder retracts, elastic piece can push firing pin through the rack and stretch from the inside of support.

2. The pneumatic starting device of claim 1, wherein, The support includes a first support and a second support, the first support and the second support are adjacent and tightly arranged; the cylinder body of the pneumatic cylinder is installed on the outer side of the first support, the first support is provided with a cavity, and the elastic member is located in the cavity.

3. The pneumatic starting device of claim 2, wherein, The second support is provided with a through hole, the side away from the first support of the through hole is provided with an opening, and the firing pin is slidably arranged in the through hole to make the firing pin stretch out or retract from the opening.

4. The pneumatic starting device of claim 3, wherein, The inside of the first support and / or the second support is provided with a receiving cavity in communication with the through hole, and the firing pin is provided with a limiting portion which is slidably arranged in the receiving cavity to limit the movement distance of the firing pin.

5. The pneumatic starting device of claim 4, wherein, The limiting portion is an annular protruding structure formed by outwardly protruding from the outer circumferential side of the firing pin.

6. A model test system comprising the pneumatic actuation device according to any one of claims 1 to 5, characterized in that The model test system further includes a runway and a test model located on the runway, the test model is provided with a pressure container, and the firing pin is arranged towards the pressure container.

7. The model test system of claim 6, wherein, The model test system further includes a timing device, a sensing device and a control device, the control device is used to control the action of the pneumatic cylinder, thereby controlling the test model to start moving, the sensing device is used to sense whether the test model reaches a preset position, and the timing device is used to record the movement time of the test model from starting moving to passing through the preset position.

8. The model testing system of claim 7, wherein, The control device includes an electromagnetic valve installed on the runway and a start button, the start button is used to control the action of the electromagnetic valve, thereby controlling the action of the pneumatic cylinder, the sensing device includes a photoelectric sensor installed below the through hole of the runway, and the timing device includes a stopwatch and a support, the stopwatch is fixedly installed above the runway through the support.

9. The model test system of claim 6, wherein, The runway includes a plurality of runway sections and a gate located between the runway sections, the gate includes a door body, one end of the door body is hinged to one of the runway sections, and the other end is provided with a clamping plate, when the door body is lowered, the clamping plate abuts against a supporting member of another runway section, so that each runway section and the gate are combined to form a continuous complete runway.

10. The model test system of claim 6, wherein, The model test system further includes a rack, the rack includes a supporting profile and a connecting profile, the upper end of the supporting profile is fixedly connected with the runway, and the two ends of the connecting profile are fixedly connected with the supporting profile.

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