Device for testing tensile strength of bearing lock

Abstract

The utility model relates to the technical field of detection devices, and discloses a device for testing the tensile strength of a force-bearing lock, which comprises a force-bearing lock body, a pulling piece and a fixing piece, the middle parts of the side walls, far away from each other, of the pulling piece and the fixing piece are respectively provided with a groove, and the bottom of each groove is provided with a guide hole; two limiting sliding strips are arranged on the lower side of the pulling piece, a limiting plate is arranged on the upper side of the fixing piece, and two limiting sliding grooves matched with the limiting sliding strips to penetrate in a sliding mode are formed in the upper side of the limiting plate. Compared with the prior art, the bearing lock has the advantages that the bearing lock body is installed between the grooves in the inner sides of the pulling piece and the fixing piece, the pulling piece is pulled upwards through a tensile machine, the bearing lock body is subjected to a longitudinal damage test, the pulling piece is pulled transversely through the tensile machine, and the bearing lock body is limited and slides in the limiting sliding groove through the limiting sliding strip; the tensile strength testing device for the force-bearing lock has the advantages that the testing content of the tensile strength testing device for the force-bearing lock is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a device for testing the tensile strength of a load-bearing lock. Background Technique

[0002] In aerospace aircraft, the luggage compartment for storing luggage or sundries must be locked to prevent the stored items from falling off. A load-bearing lock is used to lock the lid and the box body. The lower lock body of the load-bearing lock is installed in the lower sandwich panel of the box body, and the upper lock body is installed in the upper sandwich panel of the lid. The upper lock body is inserted into the rectangular groove in the lower lock body, and the lock pin of the upper lock body is rotated by 90 degrees to form a 90-degree angle with the rectangular groove to lock, thereby preventing the lid from separating from the box body and ensuring that the luggage and sundries are always restricted within a certain sealed space range.

[0003] In this process, the load-bearing lock is subjected to shear force, and its failure reason is also due to the inability to withstand excessive shear force and break. Therefore, the reliability of the load-bearing lock is the key to the entire device. How to ensure that the processed load-bearing lock meets the specified requirements requires a special device and a special force-measuring device to measure the maximum breaking tensile force that the load-bearing lock can withstand. Most of the existing load-bearing lock force-measuring devices can only perform longitudinal pulling for destruction, and it is not convenient to test the destruction of the lock pin by the transverse shear force, which has limitations in the force-measuring process.

[0004] In response to this, we propose a device with a simple structure that can test the tensile strength of the load-bearing lock longitudinally and transversely. Content of the Utility Model

[0005] I. Technical Problems to be Solved

[0006] The technical problem to be solved by the utility model is that most of them can only perform longitudinal pulling for destruction, and it is not convenient to test the destruction of the transverse shear force.

[0007] II. Technical Solution

[0008] To solve the above technical problems, the technical solution provided by the utility model is: a device for testing the tensile strength of a load-bearing lock, including a load-bearing lock body, a pulling member, and a fixing member. The load-bearing lock body includes an upper lock body, a lower lock body, a lock cap, and a lock pin. Grooves are respectively installed in the middle parts of the side walls of the pulling member and the fixing member that are far away from each other, and a guide hole for the lock pin to pass through is provided at the bottom of the groove;

[0009] Two groups of limiting sliding strips are provided on the lower side of the pulling member, a limiting plate is provided on the upper side of the fixing member, and two groups of limiting sliding grooves for the limiting sliding strips to slide through are provided on the upper side of the limiting plate.

[0010] As an improvement, a positioning frame is installed on the outer side of the fixing member, and a plurality of positioning bolts are installed through the lower side wall of the positioning frame.

[0011] As an improvement, a bolt connection is provided between the outer side of the fixing member and the side wall of the positioning frame, and the lower side of the limiting plate is in contact with the upper side of the positioning frame.

[0012] As an improvement, the upper lock body is placed at the bottom of the groove in the pulling member, the lower lock body is placed at the bottom of the groove in the fixing member, and the bottom end of the lock pin passes through the upper lock body and the lower lock body and extends into the interior of the lock cap for connection.

[0013] As an improvement, on the top of the pulling member and on opposite sides of the groove, connecting rings I are respectively installed.

[0014] As an improvement, on opposite side walls of the pulling member, connecting rings II are respectively installed.

[0015] As an improvement, a bolt connection is provided between the limiting slide bar and the lower side of the pulling member, and the bolt head is embedded inside the limiting slide bar.

[0016] III. Beneficial effects

[0017] The advantages of the present utility model compared with the prior art are as follows: The load-bearing lock body is installed between the grooves on the inner sides of the pulling member and the fixing member. By using a tensile testing machine to pull the pulling member upward, a longitudinal damage test is carried out on the load-bearing lock body. When the tensile testing machine pulls the pulling member horizontally, the limiting slide bar is limited and slides inside the limiting chute, so that a transverse damage test is carried out on the lock pin in the load-bearing lock body. The test content of the load-bearing lock tensile strength test device of the present application is more comprehensive. Description of the drawings

[0018] Figure 1 is a schematic structural diagram of a device for testing the tensile strength of a load-bearing lock according to the present utility model.

[0019] Figure 2 is a schematic structural diagram of the lower side of the pulling member of a device for testing the tensile strength of a load-bearing lock according to the present utility model.

[0020] Figure 3 is a schematic structural diagram of the upper lock body of a device for testing the tensile strength of a load-bearing lock according to the present utility model.

[0021] Figure 4 is a schematic structural diagram of the lower lock body and the lock cap of a device for testing the tensile strength of a load-bearing lock according to the present utility model.

[0022] Figure 5 is a schematic structural diagram of the lock pin of a device for testing the tensile strength of a load-bearing lock according to the present utility model.

[0023] As shown in the figure: 1. Pulling member; 2. Fixing member; 3. Groove; 4. Guide hole; 5. Limiting plate; 6. Limiting chute; 7. Limiting slide bar; 8. Positioning frame; 9. Upper lock body; 10. Lower lock body; 11. Lock cap; 12. Lock pin; 13. First connecting ring; 14. Second connecting ring; 15. Positioning bolt. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] As shown in the attached Figure 1 attached Figure 3 attached Figure 4 and attached Figure 5 As shown in the figures, a device for testing the tensile strength of a load-bearing lock includes a load-bearing lock body, a pulling member 1 and a fixing member 2. The load-bearing lock body includes an upper lock body 9, a lower lock body 10, a lock cap 11 and a lock pin 12. Grooves 3 are respectively installed in the middle of the side walls of the pulling member 1 and the fixing member 2 that are far away from each other. A guide hole 4 for the lock pin 12 to pass through is provided at the bottom of the groove 3. The upper lock body 9 is placed at the bottom of the groove 3 in the pulling member 1, the lower lock body 10 is placed at the bottom of the groove 3 in the fixing member 2, the bottom end of the lock pin 12 passes through the upper lock body 9 and the lower lock body 10 and penetrates into the lock cap 11 for connection. On the top of the pulling member 1 and on both sides of the groove 3, first connecting rings 13 are respectively installed.

[0026] Through the above structure, the upper lock body 9 is placed in the groove 3 inside the pulling member 1, the lock cap 11 is fixedly installed on the lower side of the lower lock body 10, the lock cap 11 and the lower lock body 10 are fixedly installed in the groove 3 inside the fixing member 2, the lower end of the lock pin 12 passes through the upper lock body 9 and the guide holes 4 at the bottom of the two groups of grooves 3, and the lock pin 12 penetrates into the lock cap 11 for locking;

[0027] A tensile testing machine is respectively installed directly above and on one side of the testing device in this application. When performing the feeding test, a tensile testing machine directly above is connected to the first connecting ring 13 on the top of the pulling member 1. The tensile testing machine is set, and the pulling member 1 is pulled upward by the tensile testing machine to perform a longitudinal destructive force test on the load-bearing lock body. The specific structure is as follows:

[0028] Combined with the attached Figure 1 As shown in the figure, a positioning frame 8 is installed on the outside of the fixing member 2. A plurality of positioning bolts 15 are installed through the lower side wall of the positioning frame 8. The outside of the fixing member 2 and the side wall of the positioning frame 8 are connected by bolts.

[0029] With the above structure, the fixing member 2 is connected to the positioning frame 8 by bolts, and the positioning frame 8 is stably connected to the ground by multiple groups of positioning bolts 15 to ensure the stability of the fixing member 2.

[0030] Embodiment 2

[0031] On the basis of Embodiment 1, please refer to the appendix Figure 1 and the appendix Figure 2 , two connecting rings II 14 are respectively installed on the opposite side walls of the pulling member 1, two groups of limiting sliding strips 7 are arranged on the lower side of the pulling member 1, a limiting plate 5 is arranged on the upper side of the fixing member 2, two groups of limiting sliding grooves 6 for the limiting sliding strips 7 to slide through are arranged on the upper side of the limiting plate 5, the lower side of the limiting plate 5 is in contact with the upper side of the positioning frame 8, the limiting sliding strips 7 and the lower side of the pulling member 1 are connected by bolts in cooperation, and the bolt head is embedded inside the limiting sliding strip 7.

[0032] With the above structure of Embodiment 2, a tensile testing machine on one side is connected to the connecting ring II 14 on the side wall of the pulling member 1. The pulling member 1 is pulled to move horizontally by the tensile testing machine. The pulling member 1 can slide smoothly through the limiting sliding strips 7 sliding through the limiting sliding grooves 6. Shearing force is formed on the locking pin 12 by the horizontal movement of the pulling member 1, so as to conduct a transverse damage test on the locking pin.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0035] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A device for testing the tensile strength of a load-bearing lock, comprising a load-bearing lock body, a pulling member (1) and a fixing member (2). The load-bearing lock body includes an upper lock body (9), a lower lock body (10), a lock cap (11) and a lock pin (12), characterized in that: Grooves (3) are respectively installed in the middle of the side walls of the pulling member (1) away from the fixing member (2), and a guide hole (4) through which the mating locking pin (12) passes is provided at the bottom of the groove (3); Two groups of limiting slide bars (7) are provided on the lower side of the pulling member (1), a limiting plate (5) is provided on the upper side of the fixing member (2), and two groups of limiting slide grooves (6) through which the limiting slide bars (7) slide are provided on the upper side of the limiting plate (5).

2. The device for testing the tensile strength of a load-bearing lock according to claim 1, characterized in that: A positioning frame (8) is installed on the outer side of the fixing member (2), and a plurality of positioning bolts (15) are installed through the lower side wall of the positioning frame (8).

3. The device for testing the tensile strength of the load-bearing lock according to claim 2, wherein: The outer side of the fixing member (2) and the side wall of the positioning frame (8) are connected by bolts in cooperation, and the lower side of the limiting plate (5) is in contact with the upper side of the positioning frame (8).

4. A device for testing the tensile strength of a load-bearing lock according to claim 1, characterized in that: The upper lock body (9) is placed at the bottom of the groove (3) in the pulling member (1), the lower lock body (10) is placed at the bottom of the groove (3) in the fixing member (2), and the bottom end of the locking pin (12) passes through the upper lock body (9) and the lower lock body (10) and penetrates into the inside of the lock cap (11) for connection.

5. The device for testing the tensile strength of a load-bearing lock according to claim 1, wherein: Connection rings one (13) are respectively installed at the top of the pulling member (1) and on opposite sides of the groove (3).

6. The device for testing the tensile strength of a load-bearing lock according to claim 1, characterized in that: Connection rings two (14) are respectively installed on opposite side walls of the pulling member (1).

7. The device for testing the tensile strength of the load-bearing lock according to claim 1, wherein: The limiting slide bar (7) and the lower side of the pulling member (1) are connected by bolts in cooperation, and the head of the bolt is embedded inside the limiting slide bar (7).

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