Transmission electron microscope sample preparation clamp

Abstract

The utility model discloses a sample preparation clamp for a transmission electron microscope sample. The sample preparation clamp comprises a base, a pressing plate and an insertion plate fixing seat, a vertical seat is arranged on the surface of the base, a pressing fixing seat is arranged above the vertical seat, and a knob is arranged on the pressing fixing seat; a guide column is arranged on the base, a spring is sleeved on the guide column, the pressing plate moves on the guide column, a rack seat through groove is arranged at the front end of the pressing plate, a rack seat is arranged in the rack seat through groove, a rack is arranged on one side of the rack seat, an adjusting gear is connected onto the pressing plate in a shaft connection mode, and teeth of the adjusting gear are meshed with the rack of the rack seat. A sampling device is mounted on the lower surface of the front end of the rack seat; a sliding groove is formed in the base and located below the rack base. The plugboard fixing seat is a clamping mechanism which can clamp more than two plugboards side by side and can move along the sliding groove. According to the sample preparation clamp for the transmission electron microscope sample, the purpose of directly switching to the next plugboard after a test is completed on one plugboard is achieved, and the test efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, especially to a transmission electron microscope sample preparation clamp. BACKGROUND

[0002] Chinese patent: ZL202323363261.3 relates to a sample preparation clamp table for transmission electron microscope biological sample, including operation platform, the left and right sides of operation platform are fixedly connected with fixed base, the top of operation platform is provided with sampling adjusting mechanism, the sampling adjusting mechanism includes vertical board, the vertical board is fixedly installed at the top of operation platform, the front of vertical board is fixedly connected with fixed block, the end away from vertical board of fixed block is fixedly connected with threaded sleeve, the inside screw thread connection of threaded sleeve has screw rod, the top of screw rod is fixedly connected with antiskid knob, the clamp table can fix the plugboard of different sizes by controlling the moving distance of two clamping blocks, and can extrude the plugboard in the process of clamping and apply a pre-tightening force by setting hydraulic chamber and pressure block two, can adaptively fix the plugboard of different thicknesses.

[0003] But the above-mentioned clamp still has room for improvement in use efficiency, the sample on a plugboard needs to be taken down after testing and then replace a new plugboard, if two plugboards can be installed in advance, the next plugboard can be directly switched after one plugboard completes testing, which can greatly improve the testing efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a transmission electron microscope sample preparation clamp, aiming at solving the above -mentioned problem.

[0005] In order to realize the above-mentioned purpose, the utility model discloses a transmission electron microscope sample preparation clamp, including base, pressing plate and plugboard fixing seat, the surface of base is provided with vertical seat, and the lower pressure fixing seat is equipped above vertical seat, and the knob is equipped on the lower pressure fixing seat, the guide column parallel to vertical seat is equipped on the base, and the spring is sleeved on the guide column, and the guide hole is equipped on the both sides of pressing plate, and the upper end of guide column passes through guide hole, and the lower surface of pressing plate bears the upper end of spring, and the lower end of knob bears the upper end of pressing plate, the front end of pressing plate is equipped with rack seat through slot, and the rack seat is equipped in rack seat through slot, and the rack is equipped on one side of rack seat, and the adjusting gear is connected with one adjusting gear in the form of shaft connection on the pressing plate, and the teeth of adjusting gear are engaged with the rack of rack seat, the sampling device is installed on the front end lower surface of rack seat, and the rack seat avoiding slot for avoiding rack seat is equipped on vertical seat, the sliding slot is equipped on the base below rack seat, the plugboard fixing seat is the clamping mechanism that can hold two or more plugboards side by side and can move along the sliding slot.

[0006] Further, the rear end of rack seat is equipped with the limit for limiting the forward moving distance of rack seat.

[0007] Further, the plugboard fixing seat comprises a clamping plate, a fixing seat body, a threaded column, a guide rod and a fastening nut; the fixing seat body is a plate-shaped structure capable of placing two or more plugboards side by side, the lower part of the fixing seat body is a sliding seat, the sliding seat slides in a sliding groove; a hole is arranged on one side of the base, an adjusting rod is inserted into the hole, and a screw rod type transmission connection is adopted between the adjusting rod and the sliding seat; a plurality of threaded columns and guide rods perpendicular to the fixing seat body are arranged on the front and rear edges of the fixing seat body parallel to the adjusting rod; the clamping plate has two, and each clamping plate is provided with an adjusting long groove for the threaded column or the guide rod to pass through; the clamping plate is fixed by screwing the fastening nut on the threaded column passing through the adjusting long groove.

[0008] Further, the position of the clamping plate clamping the plugboard is provided with a limiting strip, and the edge of the plugboard is provided with a limiting groove matched with the limiting strip.

[0009] Further, the upper part of the clamping plate is provided with a protective cover body for protecting the threaded column or the guide rod.

[0010] The advantages and beneficial effects of the utility model lie in that the utility model discloses a transmission electron microscope sample preparation clamp, which can directly switch to the next plugboard after the test of one plugboard is completed, greatly improves the test efficiency, and can further accurately position the sampling device and the sample by adjusting the relative position of the rack seat and the plugboard fixing seat, reduces the range that the sampling device itself moving mechanism needs to move, and further improves the accuracy and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model.

[0012] Figure 2 It is an explosion view of the utility model.

[0013] Figure 3 It is a structural schematic view of the clamping seat.

[0014] Figure 4 It is an explosion view of the clamping seat.

[0015] Among them, base 1, vertical seat 2, lower pressure fixing seat 3, knob 4, pressing plate 5, guide column 6, spring 7, rack seat 8, sampling device 9, adjusting gear 10, adjusting rod 11, sliding groove 12, plugboard fixing seat 13, clamping plate 13-1, adjusting long groove 13-1-1, limiting strip 13-1-2, protective cover body 13-1-3, fixing seat body 13-2, sliding seat 13-2-1, threaded column 13-3, guide rod 13-4, fastening nut 13-5, rack seat avoiding groove 14, plugboard A. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model. Embodiment

[0017] A transmission electron microscope sample preparation clamp, including base 1, pressing plate 5 and plugboard fixing seat 13, the surface of base 1 is provided with vertical seat 2, vertical seat 2 is equipped with lower pressure fixing seat 3 above, and knob 4 is equipped on lower pressure fixing seat 3;Base 1 is equipped with guide column 6 parallel to vertical seat 2, spring 7 is sleeved on guide column 6, guide hole is arranged on the both sides of pressing plate 5, guide column 6 upper end passes through guide hole, and the lower surface of pressing plate 5 is pressed against the upper end of spring 7, and the lower end of knob 4 is pressed against the upper end of pressing plate 5;

[0018] The front end of pressing plate 5 is equipped with rack seat through slot, rack seat 8 is equipped in rack seat through slot, rack seat 8 one side is equipped with rack, and one adjusting gear 10 is connected with the upper of pressing plate 5 by shaft connection mode, and the teeth of adjusting gear 10 are engaged with the rack of rack seat 8;

[0019] Rack seat 8 front end lower surface is installed with sampling device 9, and rack seat 8 rear end is equipped with limit, and rack seat avoiding slot 14 for avoiding rack seat 8 is arranged on vertical seat 2;

[0020] Base 1, located below rack seat 8 is equipped with sliding slot 12;

[0021] Plugboard fixing seat 13 includes clamping plate 13-1, fixing seat body 13-2, threaded column 13-3, guide rod 13-4 and fastening nut 13-5;

[0022] Fixing seat body 13-2 is the plate structure that can place two or more than two plugboards A side by side, and the lower part of fixing seat body 13-2 is sliding seat 13-2-1, and sliding seat 13-2-1 slides in sliding slot 12;One side of base 1 is provided with a hole, and adjusting rod 11 is inserted into the hole, and the adjusting rod 11 is connected with sliding seat 13-2-1 by screw rod type transmission;

[0023] The front and rear edges of fixing seat body 13-2 parallel to adjusting rod 11 are equipped with a plurality of threaded columns 13-3 and guide rods 13-4 perpendicular to fixing seat body 13-2;Clamping plate 13-1 has two, and each clamping plate 13-1 is equipped with adjusting long slot 13-1-1 for threaded column 13-3 or guide rod 13-4 to pass through;The fixation of clamping plate 13-1 is realized by screwing fastening nut 13-5 on threaded column 13-3 passing through adjusting long slot 13-1-1;

[0024] The position of clamping plate 13-1 clamping plugboard A is equipped with limit strip 13-1-2, and the edge of plugboard A is equipped with limit slot matched with limit strip 13-1-2;

[0025] The upper part of the clamping plate 13-1 is provided with a protective cover 13-1-3 for protecting the threaded column 13-3 or the guide rod 13-4.

[0026] Method for use:

[0027] 1) Place two plugboards A on the fixed seat body 13-2, clamp the two sides of the plugboard A by using the clamping plate 13-1, embed the limiting strip 13-1-2 of the clamping plate 13-1 into the limiting groove of the plugboard A to avoid the deviation of the plugboard A, and realize the clamping and fixing of the plugboard A by the clamping plate 13-1 by screwing the fastening nut 13-5 on the threaded column 13-3. In addition, it should be noted that when the size of the plugboard A is too large or too small, the distance between the two clamping plates 13-1 can be adjusted, and the threaded column 13-3 or the guide rod 13-4 passing through the adjusting long groove 13-1-1 can be adjusted in the horizontal direction.

[0028] 2) Move the sliding seat 13-2-1 along the sliding groove 12 by screwing the adjusting rod 11, ensure that one plugboard A is located below the sampling device 9, further adjust the relative position of the sampling device 9 and the plugboard A by screwing the adjusting gear 10, and adjust the height of the sampling device 9 relative to the plugboard A by screwing the knob 4. At this time, the sampling device 9 can sample the sample on the plugboard A. At this time, the range of the position of the sampling device 9 itself to be adjusted is reduced, and the requirement for the movable structure of the sampling device 9 itself is reduced.

[0029] 3) After completing the sampling of all samples on one plugboard A, without replacing the plugboard A, only need to screw the adjusting rod 11 to move the other plugboard A to the lower side of the sampling device 9, and then replace the plugboard A after completing the sampling of the samples on the plugboard A, and the replacement position can be moved to the lower side of the sampling device 9, avoiding the space steric hindrance of the sampling device 9 to the replacement plugboard A.

[0030] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principle of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the present application.

Claims

1. A transmission electron microscope sample preparation clamp, comprising a base, a pressing plate and an insert plate fixing seat; the surface of the base is provided with a vertical seat, a lower pressing fixing seat is arranged above the vertical seat, and a knob is arranged on the lower pressing fixing seat; a guide column parallel to the vertical seat is arranged on the base, a spring is sleeved on the guide column, guide holes are arranged on both sides of the pressing plate, the upper end of the guide column penetrates through the guide holes, the lower surface of the pressing plate abuts against the upper end of the spring, and the lower end of the knob abuts against the upper end of the pressing plate, characterized in that: The front end of the pressing plate is provided with a rack seat through slot, and a rack seat is arranged in the rack seat through slot. A rack is arranged on one side of the rack seat. An adjusting gear is connected to the pressing plate by a shaft connection mode. The teeth of the adjusting gear are engaged with the rack of the rack seat. A sampling device is mounted on the lower surface of the front end of the rack seat. A rack seat avoiding slot is arranged vertically on the seat to avoid the rack seat. A sliding slot is arranged on the base below the rack seat. The plug-in plate fixing seat is a clamping mechanism that can clamp two or more plug-in plates side by side and can move along the sliding slot. ​ 2. A transmission electron microscopy sample preparation holder according to claim 1, wherein: The rear end of the rack seat is provided with a limiting part for limiting the forward movement distance of the rack seat.

3. The TEM sample preparation holder of claim 1, wherein: The plug-in plate fixing seat includes a clamping plate, a fixing seat body, a threaded column, a guide rod and a fastening nut. The fixing seat body is a plate-shaped structure that can place two or more plug-in plates side by side. The lower part of the fixing seat body is a sliding seat that slides in the sliding slot. A hole is arranged on one side of the base. An adjusting rod is inserted into the hole. The adjusting rod and the sliding seat are connected by a screw rod type transmission. A plurality of threaded columns and guide rods perpendicular to the fixing seat body are arranged on the front and rear edges of the fixing seat body parallel to the adjusting rod. There are two clamping plates, and each clamping plate is provided with an adjusting long slot for the threaded column or guide rod to pass through. The clamping plate is fixed by screwing the fastening nut on the threaded column passing through the adjusting long slot.

4. A transmission electron microscopy sample preparation holder according to claim 3, wherein: The position of the clamping plate clamping the plug-in plate is provided with a limiting strip, and the edge of the plug-in plate is provided with a limiting slot matched with the limiting strip.

5. The TEM sample preparation holder of claim 3, wherein: The upper part of the clamping plate is provided with a protective cover that protects the threaded column or guide rod.

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