CN219179103U

CN219179103U - Fatigue resistance test device for luggage pull rod

Info

Publication number: CN219179103U
Application number: CN202222726101.XU
Authority: CN
Inventors: 徐雪莲
Original assignee: Pinghu Hongcheng Luggage Accessories Co ltd
Current assignee: Pinghu Hongcheng Luggage Accessories Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-06-13
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses a case pull rod fatigue resistance test device which comprises a clamping plate arranged on a base, wherein the top of the clamping plate is connected with a movable seat in a sliding manner, the top of the movable seat is provided with a fixed support, the fixed support is connected with a lifting support through a first air cylinder, the bottom of the lifting support is provided with a bending test mechanism through a mounting plate, the top of the base is provided with a supporting mechanism for placing a pull rod, the end part of the pull rod is connected with a second air cylinder through an adapter, and a test cavity at the top of the base is connected with a stretching mechanism through a third air cylinder. The utility model has scientific and reasonable structural design, can carry out stretch-break test on the pull rod, and can monitor the tension force in time through the tension sensor, thereby accurately judging the lateral tension limit value of the pull rod and improving the test efficiency.

Description

Fatigue resistance test device for luggage pull rod

Technical Field

The utility model relates to the technical field of luggage pull rod quality detection equipment, in particular to a luggage pull rod fatigue resistance test device.

Background

The suitcase pull rod is an important part on the pull rod suitcase, and in the production process, the pull rod is required to be subjected to tension and fatigue resistance test. At present, a case and bag pull rod reciprocating fatigue testing machine is used for testing and detecting the tensile resistance and fatigue resistance degree of the case and bag pull rod, but some case and bag pull rod reciprocating fatigue testing machines at present are single in function when in use, and only carry out transverse reciprocating tensile testing on the pull rod, but cannot detect the lateral stress effect of the pull rod at the same time, so that various data of the pull rod cannot be effectively known. Therefore, we propose a case and bag pull rod fatigue resistance test device.

Disclosure of Invention

The utility model aims to provide a fatigue resistance test device for a luggage pull rod, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a case and bag pull rod fatigue test device, includes the cardboard of installing on the base, cardboard top sliding connection has the removal seat, the fixed bolster is installed at the removal seat top, the lifting support is connected through first cylinder to the fixed bolster, bending test mechanism is installed through the mounting panel to the lifting support bottom, the base top is provided with the supporting mechanism who is used for placing the pull rod, the second cylinder is connected through the adaptor to the pull rod tip, the test intracavity at base top is connected with stretching mechanism through the third cylinder.

Preferably, the bending test mechanism comprises a measuring rod and a measuring head arranged at the bottom end of the measuring rod.

Preferably, the supporting mechanism comprises a first placing seat and a second placing seat, a screw is connected in the side wall of the first placing seat in a threaded mode, and a clamping block is movably connected to the inner side of the screw.

Preferably, the stretching mechanism comprises a connecting block with one end open, and a bolt is inserted on the connecting block.

Preferably, the connecting block is connected with a piston rod of the third cylinder through a tension sensor.

Compared with the prior art, the utility model has the beneficial effects that: this kind of case and bag pull rod fatigue test device, structural design is simple reasonable, have stronger practicality, through setting up first seat of placing as supporting mechanism, the one end of pull rod is fixed through the grip block under the effect of two sets of screw rods simultaneously, effectively guaranteed the stability of pull rod, be convenient for carry out follow-up test work, machining precision has effectively been guaranteed, can make the horizontal atress of pull rod tip under the effect of second cylinder, thereby carry out horizontal tensile test to the pull rod, through setting up the bending test mechanism that measuring rod and gauge head are constituteed, make bending test mechanism continuously up-and-down motion under the effect of first cylinder, thereby can repeat bending test to the pull rod, stroke distance through adjusting first cylinder makes bending test mechanism can carry out the bending test of different degree to the pull rod, whether the during operation is through observing the pull rod and crooked, whether can rebound automatically after its bending, under the stretching mechanism effect of third cylinder and tip, can carry out the stretch-break test to the pull rod, and can in time monitor the pulling force sensor size, thereby accurate judgement pull rod's side direction stretching limit value, test efficiency has been improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

Fig. 2 is a schematic top view of the structure of the present utility model.

Fig. 3 is a schematic view of the structure of the connecting block of the present utility model.

Fig. 4 is a schematic view of a clamping structure according to the present utility model.

In the figure: 1 base, 11 cardboard, 12 remove seat, 13 fixed bolster, 14 first cylinders, 15 lifting support, 16 mounting panel, 17 measuring rod, 18 gauge head, 19 first seat of placing, 191 screw rods, 192 grip blocks, 2 second seat of placing, 21 pull rod, 22 adaptor, 23 second cylinders, 24 test chamber, 25 third cylinders, 26 connecting block, 27 bolt, 28 tension sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a case and bag pull rod fatigue test device, includes the cardboard 11 of installing on base 1, cardboard 11 top sliding connection has removes seat 12, remove seat 12 top and install fixed bolster 13, fixed bolster 13 passes through first cylinder 14 and connects lifting support 15, and first cylinder 14 is provided with two sets of at least, lifting support 15 installs bending test mechanism bottom through mounting panel 16, through setting up the bending test mechanism that measuring staff 17 and gauge head 18 constitute, makes bending test mechanism continuously reciprocate under the effect of first cylinder 14 to can repeat and carry out bending test to pull rod 21, make bending test mechanism can carry out bending test to pull rod 21 by different degree through adjusting the travel distance of first cylinder 14, and whether the during operation is through observing pull rod 21 and bending the back of observation after it can be automatic rebound in a period, when inconvenient contrast, can assist through the angle ratio ruler and detect.

The top of the base 1 is provided with a supporting mechanism for placing the pull rod 21, the end part of the pull rod 21 is connected with the second air cylinder 23 through the adapter 22, and the end part of the pull rod 21 can be transversely stressed under the action of the second air cylinder 23, so that the transverse tension test is performed on the pull rod 21.

The stretching mechanism is connected in the test cavity 24 at the top of the base 1 through the third air cylinder 25, the pull rod 21 can be subjected to stretch-breaking test under the action of the stretching mechanism at the end part of the third air cylinder 25, and the tension force can be timely monitored through the tension sensor 28, so that the lateral stretching limit value of the pull rod 21 can be accurately judged, and the test efficiency is improved.

Furthermore, the bending test mechanism comprises a measuring rod 17 and a measuring head 18 arranged at the bottom end of the measuring rod, and specifically, in order to ensure the strength of the test mechanism, the measuring rod 17 and the measuring head 18 are made of metal materials, and the measuring rod 17 and the measuring head 18 can be connected in an integrally formed or assembling way through a connecting piece.

Further, supporting mechanism includes that seat 19 and second are placed to the first seat 2 that places, the screw rod 191 has been placed to the first spiro union in the seat 19 lateral wall of placing, the inboard swing joint of screw rod 191 has grip block 192, through setting up first seat 19 as supporting mechanism that places, fixes the one end of pull rod 21 through grip block 192 under the effect of two sets of screw rods 191 simultaneously, has effectively guaranteed the stability of pull rod 21, is convenient for carry out follow-up test work, has effectively guaranteed machining precision.

Further, the stretching mechanism includes a connection block 26 with an opening at one end, and the connection block 26 is inserted with a plug 27, when in use, the plug 27 is firstly removed, then the middle part of the pull rod 21 is clamped into the opening of the connection block 26, and then the connection block is inserted and fixed again through the plug 27, thereby completing the connection process with the pull rod 21.

Further, the connecting block 26 is connected with a piston rod of the third cylinder 25 through the tension sensor 28, the tension sensor 28 can monitor the tension in real time in the process of pulling the connecting block 26 through the third cylinder 25, meanwhile, data can be displayed through a display screen matched with the tension sensor 28, and in the process of carrying out the limit breaking test, when the pull rod 21 breaks, the data at the moment is recorded, so that the purpose of knowing the limit strength of the pull rod 21 is achieved.

Working principle:

this kind of case and bag pull rod fatigue test device can carry out horizontal, vertical tensile and bending fatigue test respectively to pull rod 21, when carrying out horizontal tensile test, the tip of pull rod 21 is fixed in first seat 19 through the cooperation of two sets of screw 191 and grip block 192, be fixed in adaptor 22 with the pull rod 21 other end this moment through the connecting piece, can open second cylinder 23 afterwards, apply the pulling force of different degree through second cylinder 23 and carry out the pulling force detection to pull rod 21, when needing to detect pull rod 21 elastic effect, make bending test mechanism continuously up-and-down movement under the effect of first cylinder 14, gauge head 18 continuously down side impact pull rod 21 top, thereby can repeatedly carry out bending test to pull rod 21, for example 50 impact tests are a set of, after 50 impact, observe the bending condition of pull rod 21, make bending test mechanism can carry out bending test of different degree to pull rod 21 through adjusting the stroke distance of first cylinder 14, when carrying out vertical tensile test, be connected with 21 middle part through the connecting

block

26 and 27 constitution's pulling rod 21 link mechanism, carry out the rebound strength detection with the pull rod 21 through third cylinder 25, can's the rebound strength is big or can't be monitored in real-time, can't monitor pull rod 21, the pulling force sensor is monitored to the pulling force is very big, the tensile strength is monitored to the real-time is very much.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a case and bag pull rod fatigue test device, includes cardboard (11) of installing on base (1), its characterized in that: cardboard (11) top sliding connection has removes seat (12), remove seat (12) top and install fixed bolster (13), lifting support (15) are connected through first cylinder (14) to fixed bolster (13), bending test mechanism is installed through mounting panel (16) to lifting support (15) bottom, base (1) top is provided with the supporting mechanism who is used for placing pull rod (21), second cylinder (23) are connected through adaptor (22) to pull rod (21) tip, be connected with stretching mechanism through third cylinder (25) in test chamber (24) at base (1) top.

2. The luggage pull rod fatigue resistance test device according to claim 1, wherein: the bending test mechanism comprises a measuring rod (17) and a measuring head (18) arranged at the bottom end of the measuring rod.

3. The luggage pull rod fatigue resistance test device according to claim 1, wherein: the supporting mechanism comprises a first placing seat (19) and a second placing seat (2), a screw rod (191) is screwed in the side wall of the first placing seat (19), and a clamping block (192) is movably connected to the inner side of the screw rod (191).

4. The luggage pull rod fatigue resistance test device according to claim 1, wherein: the stretching mechanism comprises a connecting block (26) with one end open, and a bolt (27) is inserted on the connecting block (26).

5. The luggage pull rod fatigue resistance test device according to claim 4, wherein: the connecting block (26) is connected with a piston rod of the third cylinder (25) through a tension sensor (28).