Test sample fixing device for electronic balance

Abstract

The utility model discloses a test sample fixing device for an electronic balance, which comprises an electronic balance and a fixing device, and the electronic balance comprises an electronic balance body; the fixing device comprises a magnetic attraction plate, the magnetic attraction plate is fixed on the scale pan in a magnetic attraction mode, the front end of the magnetic attraction plate is slidably connected with a storage plate, the edges of the front end and the rear end of the upper side wall of the storage plate are provided with a pair of first sliding grooves, and the interiors of the pair of first sliding grooves are slidably connected with a pair of first sliding blocks. A pair of clamping plates is installed on the pair of first sliding blocks in a telescopic mode. According to the fixing device provided by the utility model, different plates can be fixed by adjusting the distance between the clamping plates, so that the plates are convenient to fix and are stable when being wiped; in addition, a wiping block is arranged, the pressure generated when the wiping block makes contact with the plate is adjusted to be within the specified range, the plate can be wiped only by sliding the wiping block and the storage plate in the wiping process, and the plate is convenient to wipe.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of test sample, specifically relates to a test sample fixing device for electronic balance. BACKGROUND

[0002] When testing food materials and decolorizing test, the test sample plate or sheet needs to be placed on the electronic balance, then the wet degreasing cotton needs to be pressed with two fingers and wiped back and forth for several times at a speed of about 1 time / s in an area of about 4cm*2cm, when wiping, the force should be uniform along the test surface, and the electronic balance mass display should be observed throughout the process to ensure that the mass display is stable in the range of 800g-1200g during the whole wiping process.

[0003] The test sample plate or sheet needs to be fixed when rubbing, so as to ensure that the pressure is in the range of 800g-1200g during wiping. When fixing the plate or sheet, the laboratory usually adopts the ways of finger pressing or double-sided adhesive sticking. When pressing with fingers, one hand needs to press the plate and the other hand needs to wipe the plate, which is extremely inconvenient to control the wiping pressure and operate. The double-sided adhesive needs to be cleaned with reagent when sticking on the electronic balance, which is time-consuming and laborious. At the same time, the plate needs to be pressed to ensure that the pressure is in the fixed range during wiping, which makes the wiping process troublesome.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present utility model and should not be regarded as an acknowledgment or any form of suggestion that it forms prior art of this utility model. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a test sample fixing device for electronic balance, which can solve the problems of inconvenient fixation of test sample plate on the electronic balance and troublesome wiping of the plate.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by the utility model in one specific embodiment is as follows:

[0007] A test sample fixing device for electronic balance, comprising:

[0008] The electronic balance comprises an electronic balance body, and a scale pan is installed on the electronic balance body.

[0009] The utility model provides a fixing device, including the magnetic attraction board, the magnetic attraction board is fixed to the scale disc in the magnetic attraction mode, so that the magnetic attraction board is convenient for dismounting on the scale disc and is stable when using, the front end of magnetic attraction board is connected with the article board of sliding, and the article board is used for placing test sample board, and the movable article board can drive the board to move, the upper side wall of article board is equipped with a pair of first sliding groove at the edge of front and back two ends, a pair of first sliding block is connected in a pair of first sliding groove of sliding, so that a pair of first sliding block can be slid in the first sliding groove, a pair of clamping plate is installed in the first sliding block in the telescopic mode, a pair of clamping plate is used for clamping the two side edges of test sample board, so that the board is fixed on the article board, and the board is stable when wiping, the mounting frame is fixedly connected on the magnetic attraction board, the connecting rod is connected in the bottom of mounting frame upper end wall board, so that the connecting rod can slide in the bottom of mounting frame upper end wall board, the wiping block is installed at the lower end of connecting rod, and the sliding of connecting rod can drive the wiping block to slide, so that the board fixed on the article board can be wiped back and forth through the sliding of wiping block.

[0010] In one or more embodiments of the utility model, the magnetic attraction board is arranged as an L plate, one end wall plate of the magnetic attraction board abuts against the rear side wall of the scale disc, and the other end wall plate of the magnetic attraction board abuts against the upper side wall of the scale disc, so that when the magnetic attraction board is fixed to the scale disc in the magnetic attraction mode, the position of the magnetic attraction board remains flat relative to the scale disc. Meanwhile, the shape of the magnetic attraction board can be designed according to the shape of the rear end of the scale disc on the electronic scale in actual use, so as to ensure that the magnetic attraction board is stably and flatly mounted on the scale disc.

[0011] In one or more embodiments of the utility model, the two ends of the pair of clamping plates are respectively mounted on the first sliding blocks arranged in different first sliding grooves, so that the pair of clamping plates can move in the mode of approaching each other or moving away from each other, the fixation of different sizes of boards is realized, and the practicability of the device is improved. A pair of handles are fixedly connected to the edges of the upper side wall plate of the clamping plate, so that the handles facilitate the upward movement of the clamping plate when the clamping plate is pulled.

[0012] In one or more embodiments of the utility model, the first sliding block is provided with a groove in a downward mode from the top, and a movable rod is slidably connected in the groove, so that the movable rod can move up and down in the groove. The upper end of the movable rod is fixedly connected to the bottom of the clamping plate, so that the clamping plate can be moved up and down by the movable rod, thereby realizing the taking and fixation of the clamping plate clamping the board.

[0013] In one or more embodiments of the utility model, the bottom side wall of movable rod is fixedly connected with first limit ring, the outer diameter of first limit ring matches with the inner diameter of groove body, the inner side wall of groove body upper end is fixedly connected with second limit ring, the inner diameter of second limit ring matches with the outer diameter of movable rod. The cooperation of first limit ring and second limit ring makes movable rod slide up and down in groove body while avoiding movable rod from sliding out of groove body.

[0014] In one or more embodiments of the utility model, the outer side wall of movable rod is sleeved with stretch spring, the upper end of stretch spring is fixedly connected to the bottom of second limit ring, the lower end of stretch spring is fixedly connected to first limit ring. When the clamping plate is pulled to move upwardly, the movable rod moves to compress the stretch spring, so that the stretch spring has downward pulling force on the movable rod, and when the pulling force on the clamping plate disappears, the movable rod is pulled back under the pulling of the stretch spring, so that the clamping plate is attached to the storage plate, so as to clamp and fix the board on the storage plate through the clamping plate.

[0015] In one or more embodiments of the utility model, the front end side wall of magnetic plate is provided with second sliding groove, the rear end side wall of storage plate is fixedly connected with second sliding block, the second sliding block is slidingly connected in the second sliding groove, and the sliding of the second sliding block in the second sliding groove makes the storage plate slide at the front end of the magnetic plate.

[0016] In one or more embodiments of the utility model, the third sliding groove is formed in the upper end wall plate of the mounting frame, the third sliding block is slidingly connected in the third sliding groove, and the upper end of the connecting rod is fixedly connected to the lower end of the third sliding block, so that the sliding of the third sliding block in the third sliding groove can drive the sliding of the connecting rod.

[0017] In one or more embodiments of the utility model, the lower end side wall of the connecting rod is fixedly connected with the mounting plate, the mounting plate is threadedly connected with the screw rod in a penetrating manner, and the wiping block is mounted at the lower end of the screw rod. The screw rod can drive the wiping block to move up and down, so that the wiping block can contact the board, and when the wiping block wipes the board, the pressure needs to be controlled, so that when the pressure of the wiping block contacting the board is adjusted within a range, the wiping block moves under the sliding of the connecting rod, so that the board is wiped under the adjusted pressure, and the wiping of the board is convenient.

[0018] In one or more embodiments of the utility model, the front end of the upper end wall plate of the mounting frame is slidingly connected with the pull rod in a penetrating manner, one end of the pull rod placed in the third sliding groove is fixedly connected to the front side wall of the third sliding block, so that the pull rod can be pulled and pushed to drive the sliding of the connecting rod, so that the wiping of the board is convenient.

[0019] Compared with the prior art, the fixing device is arranged, different plates can be fixed by adjusting the spacing of the clamping plates, the plate is fixed conveniently and stable when being wiped; the wiping block is further arranged, the pressure of the wiping block when contacting the plate is adjusted in a specified range, and the plate can be wiped only by sliding the wiping block and the storage plate, so that the plate is conveniently wiped. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a front view of a test sample fixing device for an electronic balance in an embodiment of the present application.

[0022] Figure 2 It is a perspective view of a test sample fixing device for an electronic balance in an embodiment of the present application.

[0023] Figure 3 It is a schematic view of a fixing device in the present application.

[0024] Figure 4 It is a right view of a fixing device in the present application.

[0025] Figure 5 It is a sectional view of a clamping plate connecting portion in the present application.

[0026] Figure 6 It is a schematic view of A in the present application. Figure 5

[0027] Main drawing mark explanation:

[0028] 1-electronic balance, 11-electronic balance body, 12-weighing pan, 2-fixing device, 21-magnetic plate, 22-storage plate, 23-first sliding groove, 24-first sliding block, 25-clamping plate, 26-groove body, 27-movable rod, 28-tension spring, 29-first limiting ring, 210-second limiting ring, 211-handle, 212-second sliding groove, 213-second sliding block, 214-mounting frame, 215-third sliding groove, 216-third sliding block, 217-connecting rod, 218-mounting plate, 219-screw rod, 220-wiping block, 221-pull rod. DETAILED DESCRIPTION

[0029] ​In order to make the person skilled in the art better understand the technical scheme in the present application, the technical scheme in the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0030] As shown in Figure 1 and Figure 2 , an embodiment of the present application is a test sample fixing device for an electronic balance, which comprises an electronic balance 1 and a fixing device 2

[0031] As shown in Figure 1 and Figure 2 , the electronic balance 1 comprises an electronic balance body 11, and a scale disc 12 is installed on the electronic balance body 11.

[0032] As shown in Figures 1 to 4 , the fixing device 2 comprises a magnetic plate 21, which is fixed on the scale disc 12 in a magnetic manner, so that the magnetic plate 21 is convenient to disassemble and assemble on the scale disc 12 and stable during use. A placing plate 22 is slidably connected to the front end of the magnetic plate 21, and the placing plate 22 is used for placing a test sample plate. The placing plate 22 can be moved to move the plate. A pair of first sliding grooves 23 are formed in the side walls of the placing plate 22 at the edges of the front and rear ends, and a pair of first sliding blocks 24 are slidably connected in the pair of first sliding grooves 23, so that the pair of first sliding blocks 24 can slide in the pair of first sliding grooves 23. A pair of clamping plates 25 are telescopically installed on the pair of first sliding blocks 24, and the pair of clamping plates 25 are used for clamping the two side edges of the test sample plate, so as to fix the plate on the placing plate 22, in order to stabilize the plate during wiping. An installation rack 214 is fixedly connected to the magnetic plate 21, and a connecting rod 217 is slidably connected to the bottom of the upper end wall plate of the installation rack 214, so that the connecting rod 217 can slide at the bottom of the upper end wall plate of the installation rack 214. A wiping block 220 is installed at the lower end of the connecting rod 217, and the sliding of the connecting rod 217 can drive the wiping block 220 to slide, so that the plate fixed on the placing plate 22 can be wiped back and forth through the sliding of the wiping block 220.

[0033] Optionally, the magnetic plate 21 is arranged as an L-shaped plate, one end wall of the magnetic plate 21 abuts against the rear side wall of the scale disc 12, and the other end wall of the magnetic plate 21 abuts against the upper side wall of the scale disc 12, so that when the magnetic plate 21 is fixed to the scale disc 12 by magnetic attraction, the position of the magnetic plate 21 remains flat relative to the scale disc 12. At the same time, the shape of the magnetic plate 21 can be designed according to the shape of the rear end of the scale disc 12 on the electronic scale in actual use, to ensure that the magnetic plate 21 is stably and flatly installed on the scale disc 12.

[0034] As shown in Figure 3 , the two ends of the pair of clamping plates 25 are respectively installed on the first sliding blocks 24 arranged in different first sliding grooves 23, so that the pair of clamping plates 25 can move towards or away from each other to fix different sizes of plates, improving the practicability of the device. A pair of handles 211 are fixedly connected to the edges of the upper side walls of the clamping plates 25, which makes it convenient to pull the clamping plates 25.

[0035] As shown in Figure 5 , in combination with Figure 6 , the first sliding block 24 is provided with a groove 26 downward from the top, and a movable rod 27 is slidably connected in the groove 26, so that the movable rod 27 can move up and down in the groove 26. The upper end of the movable rod 27 is fixedly connected to the bottom of the clamping plate 25, so that the clamping plate 25 can be moved up and down by the movable rod 27, thereby realizing the taking and fixing of the clamping plate 25 clamping the plate.

[0036] As shown in Figure 5 , in combination with Figure 6 , the bottom side wall of the movable rod 27 is fixedly connected with a first limiting ring 29, the outer diameter of the first limiting ring 29 matches the inner diameter of the groove 26, the inner side wall of the upper end of the groove 26 is fixedly connected with a second limiting ring 210, and the inner diameter of the second limiting ring 210 matches the outer diameter of the movable rod 27. Through the cooperation of the first limiting ring 29 and the second limiting ring 210, the movable rod 27 can slide up and down in the groove 26 while avoiding sliding out of the groove 26.

[0037] As shown in Figure 5 , in combination with Figure 6As shown, the outer side wall of the movable rod 27 is sleeved with a tension spring 28, the upper end of the tension spring 28 is fixedly connected to the bottom of the second limiting ring 210, and the lower end of the tension spring 28 is fixedly connected to the first limiting ring 29. When the clamping plate 25 drives the movable rod 27 to move upward, the movable rod 27 drives the first limiting ring 29 to move, so that the tension spring 28 is compressed, and the tension spring 28 has a downward pulling force on the movable rod 27. When the force for pulling the clamping plate 25 upward disappears, the movable rod 27 is pulled back under the pulling of the tension spring 28, so that the clamping plate 25 is attached to the storage plate 22, so as to clamp and fix the board on the storage plate 22 through the clamping plate 25.

[0038] As shown in Figure 4 As shown, the front end side wall of the magnetic plate 21 is provided with a second sliding groove 212, and the rear end side wall of the storage plate 22 is fixedly connected with a second sliding block 213 which is slidingly connected in the second sliding groove 212. The sliding of the second sliding block 213 in the second sliding groove 212 enables the storage plate 22 to slide at the front end of the magnetic plate 21.

[0039] It should be noted that the storage plate 22 and the second sliding block 213 installed in the magnetic plate 21 are both made of non-magnetic materials.

[0040] As shown in Figure 3 and Figure 4 As shown, the upper end wall plate of the mounting frame 214 is provided with a third sliding groove 215, the third sliding groove 215 is slidingly connected with a third sliding block 216, and the upper end of a connecting rod 217 is fixedly connected to the lower end of the third sliding block 216, so that the sliding of the third sliding block 216 in the third sliding groove 215 can drive the sliding of the connecting rod 217.

[0041] As shown in Figure 3 As shown, the lower end side wall of the connecting rod 217 is fixedly connected with a mounting plate 218, the mounting plate 218 is threadedly connected with a screw rod 219 in a penetrating manner, and a wiping block 220 is installed at the lower end of the screw rod 219. The screw rod 219 can drive the wiping block 220 to move up and down, so that the wiping block 220 can contact with the board. When the wiping block 220 wipes the board, the pressure needs to be controlled. Therefore, when the wiping block 220 is moved by the sliding of the connecting rod 217 under the adjusted pressure, the board can be wiped under the adjusted pressure, so that the wiping of the board is convenient.

[0042] As shown in Figure 4As shown, the front end of the upper end wall plate of the mounting frame 214 is slidably connected with a pull rod 221 in a penetrating manner, one end of the pull rod 221 is fixedly connected to the front side wall of the third sliding block 216 arranged in the third sliding groove 215, so that by pulling and pushing the pull rod 221, the connecting rod 217 can be driven to slide, thereby making the wiping of the plate convenient.

[0043] In use, the magnetic plate 21 is installed on the rear side wall of the scale disc 12 by magnetic attraction, so that the magnetic plate 21 is installed on the scale disc 12 to keep flat and stable, the test sample plate is placed between the pair of clamping plates 25, the clamping plates 25 are pulled up by pulling the handle 211, then the clamping plates 25 are slid to be located at the edges of the plate, after the handle 211 is loosened, the edges of the plate are clamped on the placing plate 22 under the action of the tension spring 28, so as to realize the fixation of the plate; the wet degreasing cotton is arranged at the bottom of the wiping block, then the wiping block 220 is abutted on the plate by rotating the screw rod 219, then the reading of the electronic balance is observed, the pressure of the wiping block 220 on the plate is in the range of 800g-1200g by rotating the screw rod 219, then the wiping block 220 is moved back and forth by pushing and pulling the pull rod 221, so that the plate can be wiped back and forth, and the plate is moved by sliding the placing plate 22, so that the wiping block 220 wipes the plate comprehensively.

[0044] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

[0045] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An electronic balance test sample fixing device characterized by comprising: The utility model relates to an electronic balance, including electronic balance body, the electronic balance body is installed with the scale tray on, fixed device, including magnetic attraction board, the magnetic attraction board is fixed to the scale tray in the way of magnetic attraction, the front end of magnetic attraction board is connected with the article board of sliding, the article board upper side wall is set with a pair of first sliding slot at the edge of front and back both ends, a pair of first sliding block is connected in the pair of first sliding slot of sliding, a pair of clamping plate is installed in the pair of first sliding block in the way of retractable, the fixed connection of magnetic attraction board is installed with mounting bracket, the bottom of mounting bracket upper end wall board is connected with connecting rod, and the lower end of connecting rod is installed with wiping block. The magnetic attraction board is provided as an L plate, one end wall plate of the magnetic attraction board abuts against the rear side wall of the scale tray, and the other end wall plate of the magnetic attraction board abuts against the upper side wall of the scale tray. The two ends of the pair of clamping plates are respectively installed on the first sliding blocks arranged in different first sliding slots, and a pair of handles are fixedly connected to the edges of the upper side wall plates of the clamping plates.

2. The test sample fixing device for an electronic balance according to claim 1, wherein The first sliding block is provided with a groove from the top in a downward manner, the movable rod is slidably connected in the groove, and the upper end of the movable rod is fixedly connected to the bottom of the clamping plate.

3. The test sample fixing device for an electronic balance according to claim 1, wherein A first limiting ring is fixedly connected to the bottom side wall of the movable rod, the outer diameter of the first limiting ring matches the inner diameter of the groove, a second limiting ring is fixedly connected to the inner side wall of the upper end of the groove, and the inner diameter of the second limiting ring matches the outer diameter of the movable rod.

4. The test sample fixing device for an electronic balance according to claim 3, wherein A stretching spring is sleeved on the outer side wall of the movable rod, the upper end of the stretching spring is fixedly connected to the bottom of the second limiting ring, and the lower end of the stretching spring is fixedly connected to the first limiting ring.

5. The test sample fixing device for an electronic balance according to claim 4, wherein A second sliding slot is formed in the front side wall of the magnetic attraction board, a second sliding block is fixedly connected to the rear end side wall of the article board, and the second sliding block is slidably connected in the second sliding slot.

6. The test sample fixing device for an electronic balance according to claim 5, wherein A third sliding slot is formed in the upper end wall plate of the mounting bracket, a third sliding block is slidably connected in the third sliding slot, and the upper end of the connecting rod is fixedly connected to the lower end of the third sliding block.

7. The test sample fixing device for an electronic balance according to claim 1, wherein An installation plate is fixedly connected to the lower end side wall of the connecting rod, a screw rod is threadedly connected to the installation plate in a penetrating manner, and the wiping block is installed at the lower end of the screw rod.

8. The test sample fixing device for an electronic balance according to claim 7, wherein A pull rod is slidably connected to the front end of the upper end wall plate of the mounting bracket in a penetrating manner, and one end of the pull rod arranged in the third sliding slot is fixedly connected to the front side wall of the third sliding block.

9. The test sample fixing device for an electronic balance according to claim 8, wherein ​ 10. The test sample fixing device for an electronic balance according to claim 9, wherein ​

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