Wireless weighing instrument with dust cover

Abstract

The utility model relates to a weighing instrument, in particular to a wireless weighing instrument with a dust cover, which comprises a weighing instrument body, the dust cover is mounted on the weighing instrument body, and the dust cover comprises a top plate, a front wall, a rear wall and a side door. A transmission mechanism is installed on the top plate and comprises a lead screw, sliding rods are arranged on the two sides of the lead screw, the lead screw is in threaded connection with a sliding block, the two sides of the sliding block are in sliding connection with the sliding rods, L-shaped connecting rods are fixed to the two end faces of the sliding block, and connecting blocks are fixed to the free ends of the connecting rods and installed on the side doors. The dustproof cover is provided with the transmission mechanism, the transmission mechanism is detachably connected with the side door, automatic door closing can be achieved, and vibration during door closing is reduced.

Description

Technical Field

[0001] The utility model relates to a weighing instrument, in particular to a wireless weighing instrument with a dustproof cover. Background Art

[0002] The principle of wireless weighing instrument is that after the heavy object is loaded onto the scale, the weighing sensor converts the weight signal into a proportional electrical signal output, and then the weighing instrument displays the analog signal output by the sensor on the display screen after amplification, filtering, A / D conversion, and digital processing. Some weighing instruments can be accurate to one hundred thousandth, so when weighing light objects, it is easy to be affected by external wind and dust, thereby amplifying the error and reducing the accuracy of the weighing instrument.

[0003] In the prior art, a dust cover is installed above the weighing instrument, and the dust cover wraps the weighing pan. The dust cover is usually provided with a sliding door or a pull door, and some dust covers are designed with an upper flip cover. The upper flip cover needs to be fully opened every time weighing, and does not play a protective role. Although the sliding door can reduce the influence of the outside world, it is not smooth, so it will cause vibration when opening and closing the door, causing dust to fall, thereby reducing the accuracy of the weighing instrument.

[0004] Based on this, the utility model designs a wireless weighing instrument with a dustproof cover. Utility Model Content

[0005] The utility model aims to provide a wireless weighing instrument with a dustproof cover to solve the problems in the prior art.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] A wireless weighing instrument with a dust cover comprises a weighing instrument body, a dust cover is installed on the weighing instrument body, the dust cover comprises a top plate, a front wall, a rear wall, and a side door; a transmission mechanism is installed on the top plate, the transmission mechanism comprises a screw rod, sliding rods are provided on both sides of the screw rod, a sliding block is threadedly connected to the screw rod, both sides of the sliding block are slidably connected to the sliding rod, L connecting rods are fixed on both end surfaces of the sliding block, the free end of the connecting rod is fixed to a connecting block, and the connecting block is installed on the side door.

[0008] The moving direction of the sliding block is consistent with the pushing and pulling direction of the side door.

[0009] A slide groove is provided on the upper surface of the weighing instrument, and the slide groove matches the side door.

[0010] The connection block is equidistant from the side door in upper and lower directions.

[0011] The screw rod is connected to the screw rod motor signal and connected to the controller, and the controller is installed in the weighing instrument body.

[0012] The utility model has the following beneficial effects: a transmission mechanism is arranged on the dust cover of the utility model, and the transmission mechanism is detachably connected to the side door, so that the door can be automatically closed and the vibration when the door is closed can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Weighing instrument body; 2. Top plate; 3. Side door; 4. Screw; 5. Sliding rod; 6. Sliding block; 7. L connecting rod; 8. Connecting block; 9. Slide groove; 10. Connecting auxiliary rod; 11. Casing; 12. Screw motor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, and therefore cannot be understood as limiting the present invention.

[0019] The accompanying drawings are specific embodiments of the present utility model. Figure 1-Figure 2As shown, the utility model is a wireless weighing instrument with a dust cover, including a weighing instrument body 1, a dust cover installed on the weighing instrument body 1, the dust cover includes a top plate 2, a front wall, a rear wall, and a side door 3, a fixing strip is provided on the top plate 2 and at the junction with the side door 3, and a groove is also provided on the lower surface of the fixing strip for sliding connection with the upper edge of the side door 3; a transmission mechanism is installed on the top plate 2, and for the sake of aesthetics, a shell 11 can be covered above the transmission mechanism. The transmission mechanism includes a screw rod 4, a sliding rod 5 is provided on both sides of the screw rod 4, a sliding block 6 is threadedly connected on the screw rod 4, and the sliding block 6 is slidably connected to the sliding rod 5 on both sides. The two end surfaces of the sliding block 6 are fixed with an L connecting rod 7, and the free end of the L connecting rod 7 is fixed with a connecting block 8. The connecting block 8 is installed on the side door 3, and the position of the connecting block 8 is equal to the upper and lower distances from the side door 3, which can ensure that the side door 3 is pushed and pulled smoothly. In order to ensure that the side door 3 is not stuck when pushed and pulled, it is necessary to maintain the balance when the side door 3 is pushed and pulled. Therefore, a connecting sub-rod 10 can be added to the connecting rod 7, and the free end of the connecting sub-rod 10 is also provided with a connecting block 8, and the two connecting blocks 8 are arranged at intervals. In addition, the connecting block 8 can be installed in a detachable manner such as pasting double-sided tape, which is convenient for replacing or repairing parts. The moving direction of the sliding block 6 is consistent with the pushing and pulling direction of the side door 3. A slide groove 9 is provided on the upper surface of the weighing instrument 1, and the slide groove 9 is used to slide and connect the lower edge of the side door 3. The screw rod 4 is connected to the screw motor 12, and the signal of the screw motor 12 is connected to the controller, and the controller is installed in the weighing instrument body 1.

[0020] When in use, by controlling the controller of the weighing instrument 1, the screw motor drives the screw 4 to rotate, so that the sliding block 6 moves towards the rear wall, and the sliding block 6 drives the two side doors 3 to open backwards. After the sample is added, the weighing instrument 1 is similarly operated to close the side door 3. The dust cover can realize automatic closing to reduce the vibration when closing the door.

[0021] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to specific implementation methods.

Claims

1. A wireless weighing instrument with a dust cover, comprising a weighing instrument body (1), the dust cover being installed on the weighing instrument body (1), characterized in that: The dust cover comprises a top plate (2), a front wall, a rear wall, and a side door (3); a transmission mechanism is installed on the top plate (2), the transmission mechanism comprises a screw rod (4), sliding rods (5) are provided on both sides of the screw rod (4), a sliding block (6) is threadedly connected on the screw rod (4), and both sides of the sliding block (6) are slidably connected to the sliding rod (5), L-type connecting rods (7) are fixed to both end surfaces of the sliding block (6), and a connecting block (8) is fixed to the free end of the L-type connecting rod (7), and the connecting block (8) is installed on the side door (3).

2. A wireless weighing instrument with a dust cover according to claim 1, characterized in that: The moving direction of the sliding block (6) is consistent with the pushing and pulling direction of the side door (3).

3. The wireless weighing instrument with a dust cover according to claim 1, characterized in that: The upper surface of the weighing instrument body (1) is provided with a slide groove (9), and the slide groove (9) matches the side door (3).

4. The wireless weighing meter with a dust cover according to claim 1, characterized in that: The connection block (8) is equidistant from the side door (3) in upper and lower directions.

5. The wireless weighing instrument with a dust cover according to claim 1, characterized in that: The screw rod (4) is connected to a screw rod motor (12), a signal of the screw rod motor (12) is connected to a controller, and the controller is installed in the weighing instrument body (1).

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