Shell locking structure of centrifugal machine

Abstract

The utility model relates to the field of centrifugal machines, in particular to a shell locking structure of a centrifugal machine, which is a clamping type sliding pressing structure, can avoid screwing operation and effectively solves the problems in the background technology. Comprising a centrifugal machine body, an L-shaped supporting rod is fixedly arranged at the upper end of the outer side face of the centrifugal machine body, the upper end of the supporting rod is hinged to a transverse connecting block, the connecting block is fixedly connected with one side of an upper cover, and an arc-shaped handle is fixedly arranged on the front side of the upper surface of the upper cover; the outer surface of the lower end part of the upper cover is provided with a second annular boss which is overlapped, pressed and matched with the first annular boss, the vertical section of the first annular boss and the vertical section of the second annular boss are both of a rectangular structure, and the upper surface of the first annular boss is further provided with a sealing gasket in a bonding mode; the front sides, the left sides and the right sides of the first annular boss and the second annular boss are each provided with a detachable clamping type sliding pressing structure. The centrifugal machine is easy to operate, convenient to use and suitable for various centrifugal machines.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge field, concretely is a casing locking structure of centrifuge. BACKGROUND

[0002] Centrifuge is a common laboratory equipment, it is a kind of machinery using centrifugal force to separate liquid and solid particles or liquid and liquid mixture. The casing of existing centrifuge often uses spring lock catch mechanism, the locking force of spring lock catch mechanism is generated by spring, and the force changes with time and temperature changes, in the running process, due to the high-speed rotation of centrifuge and temperature rise, the elasticity of spring can change, leading to unstable locking force. The utility model discloses a casing locking structure of laboratory centrifuge, by directly inserting the main rod into the upper cover and the body, rotating the buckle rod makes the buckle rod and the body clamped, reset spring makes the locking structure and the body fixed tightly not easy to loosen, and disassembly and assembly are convenient, and the structure is compact;The utility model discloses a casing locking structure of centrifuge, the structure is moved by handrail, so that the limiting column of handrail front end is located in the limiting hole in the first connecting plate, rotates knob, promotes the extrusion fixation of knob to limiting plate.

[0003] The above two patents can lock and fix the casing of centrifuge. However, common problems are found in the use process: the first is to rotate the buckle rod after pressing, and the second is to rotate the knob after the limiting column is located in the limiting hole. That is, both need to rotate, and if the staff uses the centrifuge frequently, the frequent rotation operation can easily cause hand pain and fatigue. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a casing locking structure of centrifuge, which is a clamping sliding pressing structure, can avoid rotation operation, and effectively solves the problem that frequent rotation operation can easily cause hand pain and fatigue.

[0005] To achieve the above object, the utility model provides the following technical scheme: a casing locking structure of centrifuge, including centrifuge main body, the outer side face upper end of centrifuge main body is fixedly provided with L-shaped support rod, the upper end of support rod is hinged with transverse connecting block, the connecting block is fixedly connected with one side of upper cover, the front side of upper cover upper surface is fixedly provided with arc-shaped handle, the opening of centrifuge main body is provided with the first annular boss that protrudes outward, the lower end outer surface of upper cover is provided with the second annular boss that is coincident with the first annular boss and is pressed tightly, the vertical section of first annular boss and second annular boss is rectangular structure, the upper surface of first annular boss is also adhesively provided with sealing pad, and the front side, left side and right side of first annular boss and second annular boss are respectively provided with detachable clamping sliding pressing structure.

[0006] The clamping groove is arranged on the upper side of the first annular boss and the lower side of the second annular boss, and the U-shaped clamping block with a side opening is clamped in the upper and lower clamping grooves and slides from outside to inside, the lower surface of the upper lateral part and the upper surface of the lower lateral part of the U-shaped clamping block are respectively fixedly provided with an arc-shaped protrusion, and the bottom surface of the upper clamping groove and the top surface of the lower clamping groove are respectively provided with an arc-shaped groove matched with the arc-shaped protrusion;

[0007] The outer side surface of the U-shaped clamping block is respectively fixedly provided with a handle facilitating pulling and disassembling the U-shaped clamping block.

[0008] As a preferred technical scheme, the handle is in a U-shaped structure opening inward, and the distance from the inner surface of the vertical part of the U-shaped structure to the outer surface of the U-shaped clamping block is 5 cm.

[0009] As a preferred technical scheme, the left and right widths of the U-shaped clamping block are smaller than the length between the left and right side surfaces of the clamping groove.

[0010] As a preferred technical scheme, the distance from the arc-shaped groove to the inner side surface of the clamping groove is equal to the distance from the arc-shaped protrusion to the inner end surface of the U-shaped clamping block facing the clamping groove.

[0011] As a preferred technical scheme, the lower surface of the upper lateral part and the upper surface of the lower lateral part of the U-shaped clamping block are respectively matched with the bottom surface of the upper clamping groove and the top surface of the lower clamping groove in sliding.

[0012] As a preferred technical scheme, the U-shaped clamping block is further embedded with a reinforcing rib.

[0013] As a preferred technical scheme, the reinforcing rib is in a U-shaped structure opening on the side and matches the shape of the vertical section of the U-shaped clamping block.

[0014] Compared with the prior art, the shell locking structure of the centrifugal machine has the following beneficial effects:

[0015] 1. The arc-shaped protrusion and the arc-shaped groove are matched and clamped, the sliding and clamping sealing is realized, the screwing operation is avoided, and the operation is more rapid and simple.

[0016] 2. The utility model discloses a left and right width of U -shaped block is less than the left and right width of card slot, when using, make staff convenient with U -shaped block card into card slot.

[0017] 3. The utility model discloses the distance of arc -shaped recess to the inner side of card slot is equal to the distance of arc -shaped convex to the inner end surface of U -shaped block towards card slot, when using, when U -shaped block top and touch card slot inner side, make arc -shaped convex just card into arc -shaped recess.

[0018] 4. The utility model discloses the inside of U -shaped block still embeds reinforcing rib, and the reinforcing rib is the U -shaped of side opening, and is matched with the shape of U -shaped block vertical section, when using, the reinforcing rib can increase the strength of U -shaped block, not only can guarantee the sealing property of upper cover and centrifuge main body, also be favorable to prolong the service life of U -shaped block. DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the utility model and form part of the application:

[0020] Figure 1 It is the three -dimensional structure schematic diagram of the first embodiment of the utility model;

[0021] Figure 2 It is the partial enlarged structure schematic diagram of card formula sliding pressure tight structure;

[0022] Figure 3 It is the sectional structure schematic diagram of the second embodiment of the utility model.

[0023] Indicated in the drawing: 1. centrifuge main body;11. base;2. support rod;3. upper cover;31. connecting block;32. arc -shaped handle;4. first annular boss;41. sealing pad;5. second annular boss;6. card slot;61. arc -shaped recess;62. inner side;63. left and right side;7. U -shaped block;71. horizontal portion;711. inner end surface;72. arc -shaped convex;73. vertical portion;74. handle;75. reinforcing rib. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Embodiment 1

[0026] As Figure 1 , Figure 2As shown, a centrifuge shell locking structure, comprising a centrifuge body 1, the bottom of the centrifuge body 1 is provided with a base 11, the outer side of the centrifuge body 1 is fixedly provided with an L-shaped support rod 2 at the upper end, the upper end of the support rod 2 is hinged to a transverse connecting block 31, the connecting block 31 is fixedly connected to one side of an upper cover 3, the upper surface of the upper cover 3 is fixedly provided with an arc-shaped handle 32 (convenient for opening and closing the upper cover 3) at the front side, the centrifuge body 1 is provided with a first annular boss 4 protruding outward at the opening, the outer surface of the lower end of the upper cover 3 is provided with a second annular boss 5 coinciding with the first annular boss 4 for pressing, the vertical section of the first annular boss 4 and the second annular boss 5 is a rectangular structure, the upper surface of the first annular boss 4 is further provided with a sealing gasket 41, and the front side (the side opposite to the connecting block 31), the left side and the right side of the first annular boss 4 and the second annular boss 5 are respectively provided with a detachable clamping sliding pressing structure.

[0027] The clamping sliding pressing structure comprises a clamping groove 6 provided on the upper side of the first annular boss 4 and opening upward and outward (relative to the center of the upper cover) and the lower side of the second annular boss 5 and opening downward and outward, a U-shaped clamping block 7 with a side opening is slidably clamped in the upper and lower clamping grooves 6 from outside to inside, the upper side of the U-shaped clamping block 7 is fixedly provided with an arc-shaped protrusion 72 on the lower surface of the upper side transverse part 71 and the upper surface of the lower side transverse part 71, respectively, and the bottom surface of the upper clamping groove 6 and the top surface of the lower clamping groove 6 are respectively provided with an arc-shaped groove 61 clamped and matched with the arc-shaped protrusion 72.

[0028] The outer side of the vertical part 73 of the U-shaped clamping block 7 is fixedly provided with a handle 74 for conveniently pulling and detaching the U-shaped clamping block 7.

[0029] The handle 74 is in a U-shaped structure opening inward, and the distance from the inner surface of the vertical part of the U-shaped structure to the outer surface of the vertical part 73 of the U-shaped clamping block 7 is 5 cm (a finger can be inserted).

[0030] The left and right widths of the U-shaped clamping block 7 are smaller than the length between the left and right side surfaces 63 of the clamping groove 6, so that the staff can conveniently clamp the U-shaped clamping block 7 into the clamping groove 6.

[0031] The distance from the arc-shaped groove 61 to the inner side surface 62 of the clamping groove 6 is equal to the distance from the arc-shaped protrusion 72 to the inner end surface 711 of the U-shaped clamping block 7 facing the clamping groove 6. When the U-shaped clamping block 7 touches the inner side surface 62 of the clamping groove 6, the arc-shaped protrusion 72 is just clamped into the arc-shaped groove 61. This facilitates the installation of the U-shaped clamping block 7.

[0032] The lower side of the upper side transverse part 71 and the upper surface of the lower side transverse part 71 of the U-shaped clamping block 7 are respectively slidably matched with the bottom surface of the upper clamping groove 6 and the top surface of the lower clamping groove 6.

[0033] In use, the second annular boss 4 and the first annular boss 5 are pressed tightly by the left hand, then the right hand can hold the U-shaped clamping block 7 and clamp it into part of the upper and lower clamping grooves 6, then the right hand is removed, and the right hand is used to hit the U-shaped clamping block 7 into the clamping groove 6, so that the arc-shaped protrusion 72 is clamped tightly with the arc-shaped groove 61, the sliding and pressing sealing is realized, the screwing operation is avoided, and the operation is more quick and convenient.

[0034] Embodiment 2

[0035] As Figure 3 shown, the U-shaped clamping block 7 is further embedded with a reinforcing rib 75.

[0036] The reinforcing rib 75 is in a U-shaped side opening, which matches the shape of the vertical section of the U-shaped clamping block 7.

[0037] In use, the reinforcing rib 75 can increase the strength of the U-shaped clamping block 7, which can not only ensure the sealing of the upper cover 3 and the centrifuge main body 1, but also is beneficial to prolong the service life of the U-shaped clamping block 7.

[0038] The components used in the utility model are all general standard components or components known by those skilled in the art, and the structure and principle thereof are well known to those skilled in the art.

[0039] It should be noted that in this paper, the terms "first", "second", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0040] The structure, proportion, size and the like shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the utility model. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifuge shell locking structure, comprising a centrifuge main body, an L-shaped support rod is fixedly arranged on the outer side of the upper end of the centrifuge main body, the upper end of the support rod is hingedly connected with a transverse connecting block, the connecting block is fixedly connected with one side of an upper cover, an arc-shaped handle is fixedly arranged on the front side of the upper surface of the upper cover, characterized in that: The centrifuge body is provided with a first annular boss protruding outward at the opening, and the outer surface of the lower end of the upper cover is provided with a second annular boss in coincident and pressing fit with the first annular boss, the vertical section of the first annular boss and the second annular boss is rectangular structure, the upper surface of the first annular boss is further provided with a sealing gasket, and the front side, left side and right side of the first annular boss and the second annular boss are respectively provided with a detachable clasp sliding pressing structure; The clasp sliding pressing structure comprises a clasp groove provided on the upper side of the first annular boss and opening upward and outward and the lower side of the second annular boss and opening downward and outward, a U-shaped clasp block with a side opening is slidingly clamped in the upper and lower clasp grooves from outside to inside, the upper side horizontal part lower surface and the lower side horizontal part upper surface of the U-shaped clasp block are respectively provided with an arc protrusion, and the bottom surface of the upper clasp groove and the top surface of the lower clasp groove are respectively provided with an arc groove in clamping fit with the arc protrusion. The outer side surface of the U-shaped clasp block is respectively provided with a handle for facilitating pulling and detaching the U-shaped clasp block.

2. The housing locking structure of a centrifuge according to claim 1, wherein: The handle is in U-shaped structure opening inward, and the distance from the inner surface of the vertical part of the U-shaped structure to the outer surface of the U-shaped clasp block is 5 cm.

3. The housing locking structure of a centrifuge according to claim 1, wherein: The left and right widths of the U-shaped clasp block are smaller than the length between the left and right side surfaces of the clasp groove.

4. The housing locking structure of a centrifuge according to claim 1, wherein: The distance from the arc groove to the inner side surface of the clasp groove is equal to the distance from the arc protrusion to the inner end surface of the U-shaped clasp block facing the clasp groove.

5. The housing locking structure of a centrifuge according to claim 1, wherein: The upper side horizontal part lower surface and the lower side horizontal part upper surface of the U-shaped clasp block are respectively in sliding fit with the bottom surface of the upper clasp groove and the top surface of the lower clasp groove.

6. The housing locking structure of a centrifuge according to claim 1, wherein: The U-shaped clasp block is further embedded with a reinforcing rib.

7. The housing locking structure of a centrifuge according to claim 6, wherein: The reinforcing rib is in U-shaped structure with a side opening and matches the shape of the vertical section of the U-shaped clasp block.

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