Auxiliary tool for visual field test of tractor

Abstract

The utility model relates to a tractor visual field test auxiliary tool which comprises a base, a telescopic rod, a protective cover and two bulbs, and the telescopic rod is vertically and fixedly installed on the base; the protective cover is mounted at the upper end of the telescopic rod and can horizontally rotate around the axial direction of the telescopic rod; and the two bulbs are oppositely mounted on one side of the protective cover. The visual field testing device has the beneficial effects that the structure is simple, the design is reasonable, a bulb is used for replacing human eyes, a single-person visual field test can be realized by an auxiliary tool which can accurately simulate the eyes of a driver, the verification efficiency is improved, and the whole device is light and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor technical field, concretely relates to a tractor field of view test auxiliary frock. BACKGROUND

[0002] Tractor is a kind of heavy machinery for pulling and pushing agricultural implements in agricultural production, it is widely used in ploughing, planting, harvesting, transportation and multiple links, its multifunctionality makes the farmer in agricultural production can more efficiently complete each agricultural activity, becomes the indispensable important tool in the process of agricultural modernization.The structure such as reflector, post-processing located in the front part of tractor when driving tractor will shield the field of view of driver to some extent, causes field of view blind area, influences driver operation even influences driver safety.So the field of view of whole machine needs to be tested before whole machine is shipped, and the measurement of field of view can be completed by single person using the light frock.

[0003] With a large number of new models online, the workload of whole machine testing personnel also increases, but because the number of testing personnel is limited, the original equipment is too heavy and needs two people to cooperate.Further development of a relatively light auxiliary frock that can accurately simulate the driver's eye to achieve single field of view testing and improve verification efficiency is needed. UTILITY MODEL CONTENT

[0004] The utility model provides a tractor field of view test auxiliary frock, aims at solving the problem in prior art.

[0005] The technical scheme for solving the above technical problem of the utility model is as follows:

[0006] A tractor field of view test auxiliary frock, including base, telescopic link, protective cover and two bulbs, the telescopic link is vertically fixed and installed on the base;The protective cover is installed on the upper end of the telescopic link, and it can rotate horizontally around the axis of the telescopic link;Two bulbs are oppositely installed on one side of the protective cover.

[0007] The utility model has the advantages that when using, the base is placed on the seat in the cab, so that the bulbs face the front windshield of the cab;At the same time, the height of the bulb cover is adjusted by telescopic link, and the bulb is turned on;When testing, the tester watches whether the light of the bulb is blocked in the set area outside the cab.

[0008] The utility model has the advantages of simple structure, reasonable design, using bulb instead of eye, single field of view testing can be realized by the auxiliary frock that can accurately simulate the driver's eye, verification efficiency is improved, and the whole equipment is relatively light and convenient to use.

[0009] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0010] Further, the telescopic rod comprises a sleeve and a rod body, the sleeve is vertically fixedly installed on the base and has an open upper end; the rod body is vertically installed in the sleeve and can move up and down and be positioned; the protective cover is installed on the upper end of the rod body.

[0011] The beneficial effect of the above further scheme is simple structure and reasonable design, the length of the telescopic rod is adjusted by moving the rod body up and down in the sleeve, and then the height of the bulb is adjusted.

[0012] Further, a rotating disc is horizontally installed on the upper end of the rod body, the rotating disc can rotate horizontally around the axis of the rod body; the protective cover is installed on the rotating disc.

[0013] The beneficial effect of the above further scheme is simple structure and reasonable design, the rotating disc can simulate the head of the driver, and the angle of the protective cover can be adjusted to simulate the neck of the driver.

[0014] Further, a screw hole is provided on the sleeve and penetrates the inside and outside, a locking knob is threadedly connected in the screw hole; the locking knob is twisted to abut against or release the rod body at one end to fix or release the rod body.

[0015] The beneficial effect of the above further scheme is simple operation, time and labor saving, when adjusting, the rod body is manually moved to the set height, and then the locking knob is manually twisted to abut against or release the rod body at one end to fix or release the rod body.

[0016] Further, two mounting seats are fixedly installed on one side of the protective cover, two bulbs are respectively installed on the two mounting seats; two connectors are further installed on the two mounting seats, one end of each of the two connectors is connected with the bulb, and the other end of each of the two connectors is used for connecting the power line.

[0017] The beneficial effect of the above further scheme is simple structure and reasonable design, two bulbs are assembled by using two mounting seats, and the assembly is convenient.

[0018] Further, the two mounting seats respectively have a cylindrical structure.

[0019] The beneficial effect of the above further scheme is simple structure, and the shape of the two mounting seats is reasonable and convenient for assembly.

[0020] Further, the two bulbs are respectively threadedly installed on the two mounting seats.

[0021] The beneficial effect of the above further scheme is simple structure, the two bulbs are threadedly connected with the two mounting seats, different specifications of bulbs can be replaced to adapt to different models of tractors, and the device is mainly used for simulating human eyes.

[0022] Further, the base is in a rectangular plate structure.

[0023] The beneficial effect of the above further scheme is simple structure, and the shape of the base is reasonable, so that the whole device can be placed on the seat in the cab during testing.

[0024] Further, the lower end of the telescopic rod is fixedly connected with the part close to the rear side of the base.

[0025] The beneficial effect of the above further scheme is simple structure, and the part where the lower end of the telescopic rod is connected with the base is reasonable, so that the stability of the whole device on the seat in the cab is ensured.

[0026] Further, the protective cover is in a rectangular box structure.

[0027] The beneficial effect of the above further scheme is simple structure, and the shape of the protective cover is reasonable, so that the bulb is convenient to assemble. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is a structural schematic view of the present application;

[0029] Fig. 2 is a structural schematic view of the present application;

[0030] Fig. 3 is a structural schematic view of the present application;

[0031] Fig. 4 is a structural schematic view of the present application.

[0032] In the drawings, the components represented by each reference numeral are listed as follows:

[0033] 1, base; 2, protective cover; 3, bulb; 4, sleeve; 5, rod body; 6, turntable; 7, locking knob; 8, mounting seat. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] Example 1

[0039] like Figs. 1 to 4 As shown, this embodiment provides an auxiliary tooling for testing the visibility of a tractor, including a base 1, a telescopic rod, a protective cover 2, and two light bulbs 3. The telescopic rod is vertically fixed on the base 1; the protective cover 2 is installed on the upper end of the telescopic rod and can rotate horizontally around the axis of the telescopic rod; the two light bulbs 3 are installed opposite each other on one side of the protective cover 2.

[0040] When in use, place the base 1 on the seat in the driver's cab so that the bulb 3 faces the front windshield of the driver's cab; at the same time, use the telescopic rod to adjust the bulb cover to a suitable height and turn on the bulb; during the test, the tester observes in a set area outside the driver's cab whether the light from the bulb 3 is blocked.

[0041] Preferably, in this embodiment, the base 1 is a hollow structure connected to the telescopic rod, providing greater weight to lower the center of gravity of the tooling, improve structural stability, and prevent the tooling from tipping over during use.

[0042] The embodiment has simple structure, reasonable design, uses the bulb to replace the human eye, can simulate the single-person visual field test of the auxiliary tool of the driver's eye, improves the verification efficiency, and the whole device is light and convenient to use.

[0043] Embodiment 2

[0044] In the embodiment, the telescopic rod comprises a sleeve 4 and a rod body 5, the sleeve 4 is vertically fixedly installed on the base 1 and has an open upper end, and the rod body 5 is vertically installed in the sleeve 4 and can move up and down and be positioned.

[0045] The scheme has simple structure and reasonable design, the length of the whole telescopic rod is adjusted by the up-and-down movement of the rod body 5 in the sleeve 4, and then the height of the bulb is adjusted.

[0046] Preferably, the sleeve 4 is a circular cylinder in the embodiment.

[0047] In addition, the rod body 5 is preferably a cylindrical structure, and the diameter of the rod body 5 is smaller than the inner diameter of the sleeve 4, so that the rod body 5 can move up and down in the sleeve 4.

[0048] Embodiment 3

[0049] In the embodiment, the upper end of the rod body 5 is horizontally installed with a rotating disc 6, the rotating disc 6 can rotate horizontally around the axis of the rod body 5, and the protective cover 2 is installed on the rotating disc 6.

[0050] The scheme has simple structure and reasonable design, the head of the driver can be simulated by the rotating disc 6, and the angle of the protective cover 2 can be adjusted to simulate the neck of the driver.

[0051] Preferably, the rotating disc 6 is a circular disc in the embodiment, the lower surface of the rotating disc 6 is fixedly connected with the upper end of a rotating shaft, and the lower end of the rotating shaft extends into a circular hole in the upper end of the rod body 5 and is rotationally connected.

[0052] In addition, the upper end of the rod body 5 is provided with a cavity in communication with the circular hole, the lower end of the rotating shaft is fixedly connected with a limiting plate, the limiting plate is located in the cavity, and the size of the limiting plate is greater than that of the circular hole, so that the rotating shaft and the rotating disc 6 cannot slip off the rod body 5.

[0053] It should be noted that the rotating shaft is close to the hole wall of the circular hole, and the tester needs a certain external force to rotate the rotating disc 6, so that the protective cover 2 cannot be randomly rotated.

[0054] Embodiment 4

[0055] In any one of Embodiment 2 to Embodiment 3, the sleeve 4 is provided with a through screw hole, and a locking knob 7 is threadedly connected in the screw hole; the locking knob 7 is twisted to abut against or release the rod body 5 at one end, so as to fix or release the rod body 5.

[0056] During adjustment, the rod body 5 is manually moved to a set height, and then the locking knob 7 is manually twisted to abut against or release the rod body 5 at one end, so as to fix or release the rod body 5, which is simple and convenient to operate and saves time and effort.

[0057] Embodiment 5

[0058] In any one of Embodiment 2 to Embodiment 3, the sleeve 4 is provided with a through screw hole, and a locking knob 7 is threadedly connected in the screw hole; the locking knob 7 is twisted to abut against or release the rod body 5 at one end, so as to fix or release the rod body 5.

[0059] The scheme is simple in structure and reasonable in design, two bulbs 3 are assembled by using two mounting seats 8, and the assembly is convenient.

[0060] Embodiment 6

[0061] In any one of Embodiment 2 to Embodiment 3, the sleeve 4 is provided with a through screw hole, and a locking knob 7 is threadedly connected in the screw hole; the locking knob 7 is twisted to abut against or release the rod body 5 at one end, so as to fix or release the rod body 5.

[0062] The scheme is simple in structure and reasonable in design, two bulbs 3 are assembled by using two mounting seats 8, and the assembly is convenient.

[0063] Embodiment 7

[0064] In any one of Embodiment 2 to Embodiment 3, the sleeve 4 is provided with a through screw hole, and a locking knob 7 is threadedly connected in the screw hole; the locking knob 7 is twisted to abut against or release the rod body 5 at one end, so as to fix or release the rod body 5.

[0065] The scheme is simple in structure and reasonable in design, two bulbs 3 are assembled by using two mounting seats 8, and the assembly is convenient.

[0066] Based on the above scheme, the two connectors are respectively arranged through the two mounting seats 8, one end of each of the two connectors is provided with a threaded groove, and the two bulbs 3 are respectively threadedly connected with the two threaded grooves.

[0067] In addition, the other end of each of the two connectors is connected with one end of a power line, the other end of each of the two power lines is provided with a plug, and the two plugs are respectively connected with a power source in a cab during testing.

[0068] Embodiment 8

[0069] In any one of Embodiment 2 to Embodiment 3, the sleeve 4 is provided with a through screw hole, and a locking knob 7 is threadedly connected in the screw hole; the locking knob 7 is twisted to abut against or release the rod body 5 at one end, so as to fix or release the rod body 5.

[0070] The scheme has simple structure, and the base 1 is reasonably designed in shape, so that the whole device can be placed on the seat in the cab during testing.

[0071] Embodiment 9

[0072] In the embodiment, the lower end of the telescopic rod is fixedly connected to the part of the base 1 close to the rear side.

[0073] The scheme has simple structure, and the part, where the lower end of the telescopic rod is connected to the base 1, is reasonably designed, so that the stability of the whole device on the seat in the cab is ensured.

[0074] Embodiment 10

[0075] In the embodiment, the protective cover 2 has a rectangular box body structure.

[0076] The scheme has simple structure, and the protective cover 2 is reasonably designed in shape, so that the bulb is conveniently assembled.

[0077] Preferably, in the embodiment, the protective cover 2 has a rectangular hollow shell structure, which provides a mounting position and positioning for the bulb mounting seat, protects the internal bulb, and simulates the head of a driver.

[0078] The working principle of the utility model is as follows:

[0079] During use, the base 1 is placed on the seat in the cab, so that the bulb 3 faces the front windshield of the cab; meanwhile, the telescopic rod is used to adjust the bulb cover to a proper height, and the bulb is turned on.

[0080] During testing, the tester watches whether the light of the bulb 3 is blocked in the area set outside the cab.

[0081] The advantages of the tooling provided by the utility model are as follows:

[0082] 1. The bulb is used to replace the human eye, a relatively simple structure is used to replace a complex structure, only the visual field testing function is reserved, and the redundant function is abandoned.

[0083] 2. The operation is simple, and one person can complete assembly, adjustment and disassembly without excessive parameter adjustment.

[0084] 3. The structure is simple, the installation and adjustment are convenient, the quality is relatively light, one person can quickly install, use and measure, and the tooling can be quickly disassembled after measurement.

[0085] 4. The tooling has high universality, occupies small space, and can be used for 80% of models.

[0086] It is apparent to a person skilled in the art that the present application is not restricted to the details of the foregoing exemplary embodiments, but that the present application can be implemented in other embodiments without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in a descriptive sense only and not for purposes of limitation. The present application is defined by the appended claims rather than by the foregoing description, and all changes and modifications that come within the meaning and range of equivalents of the claims are to be embraced within the scope of the present application. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0087] In addition, it should be understood that although the present specification describes only one independent technical solution for each embodiment, the specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

[0088] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary tooling for testing the visibility of a tractor, characterized in that: The device includes a base (1), a telescopic rod, a protective cover (2), and two light bulbs (3). The telescopic rod is vertically fixed on the base (1). The protective cover (2) is installed on the upper end of the telescopic rod and can rotate horizontally around the axis of the telescopic rod. The two light bulbs (3) are installed opposite each other on one side of the protective cover (2).

2. The tractor vision testing auxiliary fixture according to claim 1, characterized in that: The telescopic rod includes a sleeve (4) and a rod body (5). The sleeve (4) is vertically fixed on the base (1) with its upper end open. The rod body (5) is vertically installed inside the sleeve (4) and can move up and down and be positioned. The protective cover (2) is installed on the upper end of the rod body (5).

3. The tractor vision testing auxiliary fixture according to claim 2, characterized in that: A turntable (6) is horizontally mounted on the upper end of the rod (5), and the turntable (6) can rotate horizontally around the axis of the rod (5); the protective cover (2) is mounted on the turntable (6).

4. The tractor vision testing auxiliary fixture according to claim 2, characterized in that: The sleeve (4) is provided with a threaded hole that runs through the inside and outside. A locking knob (7) is threaded into the threaded hole. Turn the locking knob (7) until one end abuts against or releases the rod (5) to fix or release the rod (5).

5. The tractor vision testing auxiliary tooling according to any one of claims 1-4, characterized in that: Two mounting bases (8) are fixedly installed on one side of the protective cover (2), and the two bulbs (3) are respectively installed on the two mounting bases (8); two connectors are also installed on the two mounting bases (8), one end of the two connectors is connected to the bulbs (3) respectively, and the other end is used to connect the power cord respectively.

6. The tractor vision testing auxiliary fixture according to claim 5, characterized in that: The two mounting bases (8) are respectively cylindrical in shape.

7. The tractor vision testing auxiliary fixture according to claim 6, characterized in that: The two bulbs (3) are threaded onto the two mounting bases (8) respectively.

8. The tractor vision testing auxiliary tooling according to any one of claims 1-4, characterized in that: The base (1) has a rectangular plate structure.

9. The tractor vision testing auxiliary fixture according to claim 8, characterized in that: The lower end of the telescopic rod is fixedly connected to the base (1) near its rear side.

10. The tractor vision testing auxiliary tooling according to any one of claims 1-4, characterized in that: The protective cover (2) has a rectangular box-shaped structure.

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