Laboratory mouse metabolism cage bottom plate structure with compact structure and solid-liquid separation function

Abstract

The utility model relates to a laboratory mouse metabolism cage bottom plate structure which is compact in structure and has a solid-liquid separation function, in particular to a bottom plate structure which is divided into three layers, the upper layer is strip-shaped supporting rods which are arranged at intervals, the top of each strip-shaped supporting rod is provided with an upward outer convex face, and the middle layer is hard screens which are arranged between the adjacent supporting rods at intervals and are provided with upward outer convex faces. The lower layer is a collecting disc provided with excrement collecting boxes and urine collecting boxes at intervals, and each excrement collecting box is located between the adjacent hard screens, based on the structural design, on the premise that it is ensured that the bottom plate structure can conduct effective solid-liquid separation on excrement and urine excreted by laboratory mice, the height of the whole structure is effectively reduced, and the structure is simple and convenient. The experimental mouse metabolism cage can be designed into a multi-layer structure, and the practicability is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of experimental mouse metabolism cage, concretely relates to a compact structure and have the experimental mouse metabolism cage bottom plate structure of solid -liquid separation function. BACKGROUND

[0002] Mouse metabolism cage is a special cage specially designed for experimental animals (such as mice), which can help researchers collect and analyze animal excreta (urine and feces), and measure their food and water intake, activity level and other physiological parameters. This cage is usually used in the fields of nutrition, toxicology, pharmacology and behavior to evaluate the effects of diet, drugs, chemicals or diseases on animal metabolism.

[0003] In order to facilitate subsequent detection and analysis, the existing mouse metabolism cage basically has the function of separating and collecting the feces and urine excreted by the mouse, in order to avoid the mixing of urine and feces, resulting in cross contamination, so that the detection results of certain chemical components or biomarkers are inaccurate.

[0004] The solid-liquid separation structure of the existing experimental mouse metabolism cage is mostly a hard screen placed obliquely at the bottom of the metabolism cage. The urine excreted by the mouse passes through the hard screen into the urine collection container located below the screen. The feces excreted by the mouse roll down the hard screen obliquely and finally enter the feces collection container located at the side of the screen.

[0005] In order to ensure that the feces can roll into the feces collection container, the inclination angle of the hard screen is usually large, which requires a lot of vertical space, resulting in a high single-layer height of the experimental mouse metabolism cage using this solid-liquid separation structure. Under the premise of facilitating the use of experimental personnel, the metabolism cage cannot be set to more layers, and under the premise of ensuring the number of experimental samples, the area of the metabolism cage placement area is required to be high. INVENTION CONTENTS

[0006] The utility model aims at providing a compact structure and have the experimental mouse metabolism cage bottom plate structure of solid -liquid separation function, to solve the problem mentioned in the background art, for realizing this purpose, the specific technical scheme is as follows:

[0007] A compact structure and have the experimental mouse metabolism cage bottom plate structure of solid -liquid separation function, the bottom plate structure is three layers, the upper layer is interval setting, the top has the outward convex surface strip support rod to the upper, the middle layer is interval setting between adjacent support rod, has the outward convex surface strip hard screen to the upper, the lower layer is interval setting strip feces collection box and strip urine collection box's collection tray, and each feces collection box is located between adjacent hard screen respectively,

[0008] Supporting rods and hard screens are fixedly installed at the bottom of the experimental mouse metabolic cage, and the collection tray is placed on the bottom surface of the experimental mouse metabolic cage.

[0009] Further, the top of the supporting rod is an outwardly convex curved surface, the side is a vertical surface or a downwardly outwardly extending inclined surface, and the bottom is a flat surface or an inwardly concave surface.

[0010] Further, the cross section of the hard screen is in the shape of "∧".

[0011] Further, the gap width between adjacent supporting rods is less than the width of the hard screen, the width of the feces collection box matches the gap width between adjacent hard screens, and the width of the urine collection box matches the width of the hard screen.

[0012] The utility model discloses the beneficial effects are:

[0013] (1) the bottom plate structure of the application is three layers, including the supporting rod of upper layer, the hard screen of middle layer and the collection tray of lower layer, wherein the supporting rod of upper layer is used for providing the activity platform for the mouse in the metabolic cage, when the mouse excretes feces or urine, the excrement falls down from the gap between the supporting rods, contacts the hard screen, if the excrement is urine, then directly passes through the hard screen and enters the urine collection box, if the excrement is feces, then rolls down along the inclined surface of the hard screen and enters the feces collection box, which realizes the effective solid-liquid separation of the excrement produced by the mouse in the metabolic cage.

[0014] (2) compared with the solid-liquid separation structure composed of the integral hard screen and related components arranged in an inclined mode, the integral hard screen is replaced by a plurality of strip-shaped hard screens with upward convex surfaces in the application, under the premise of ensuring that the hard screen has sufficient inclination to ensure that the feces can roll, the height of the solid-liquid separation structure is effectively reduced, under the premise of facilitating the use of the experimental personnel, the metabolic cage can be provided with more layers, under the premise of ensuring that the number of experimental samples is sufficient, the area requirement of the metabolic cage placement area is lower. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is the overall structure of the utility model overhead view;

[0016] Fig. 2 is the internal structure of the utility model under the perspective of the internal structure of the utility model;

[0017] Fig. 3 is the collection tray structure overhead view;

[0018] The meanings of the various identifiers in the drawings are as follows:

[0019] Supporting rod 1, hard screen 2, feces collection box 3, urine collection box 4, collection tray 5. DETAILED DESCRIPTION

[0020] Referring to Figs. 1-3 The present embodiment provides a compact experimental mouse metabolic cage bottom plate structure with solid-liquid separation function. The bottom plate structure is three layers. The upper layer is spaced apart and has upwardly convex strip-shaped support rods 1 on the top. The middle layer is spaced apart between adjacent support rods 1 and has upwardly convex strip-shaped hard screens 2. The lower layer is a collection tray 5 with spaced apart strip-shaped feces collection boxes 3 and strip-shaped urine collection boxes 4. Each feces collection box 3 is located between adjacent hard screens 2.

[0021] The support rods 1 and the hard screens 2 are fixedly installed on the bottom of the experimental mouse metabolic cage. The collection tray 5 is placed on the bottom surface of the experimental mouse metabolic cage through the opening on the side of the experimental mouse metabolic cage.

[0022] The working principle of the present embodiment is as follows:

[0023] The support rods 1 are used to provide a platform for the mice in the metabolic cage. When the mice produce excrement, the excrement either directly falls from the gap between the support rods 1 onto the hard screens 2 or falls onto the upwardly convex surface of the support rods 1, then slides down the surface of the support rods 1 and finally falls onto the hard screens 2.

[0024] When the excrement is urine, the urine directly passes through the hard screens 2 and enters the urine collection boxes 4 below the hard screens 2. When the excrement is feces, the feces rolls down the inclined surface of the hard screens 2 and finally enters the feces collection boxes 3.

[0025] During the experiment, the collection tray 5 is taken out by the experimenter as needed to collect the excrement in the collection tray 5.

[0026] Further, the top of the support rod 1 is an outwardly convex curved surface, which improves the comfort of the mice moving on the support rod 1 while guiding the excrement falling on the support rod 1 into the gap between the support rods 1, avoiding the feeling of being pinched. The side surface is a vertical surface or a downwardly outwardly extending inclined surface, thereby ensuring that the urine falling along the side surface can accurately drip into the urine collection box 4. The bottom surface is a flat surface or an inwardly concave surface. If the bottom surface is an outwardly convex surface, the urine falling along the side surface will continue to move laterally along the bottom surface when it reaches the edge of the bottom surface, resulting in inaccurate dripping into the urine collection box 4.

[0027] Further, the cross section of the hard screen 2 is "∧" shaped, which can provide a flat surface and a larger inclination angle to ensure smooth rolling of the feces.

[0028] Further, the gap width between adjacent support rods 1 is less than the width of the hard screen 2. The width of the feces collection box 3 matches the gap width between adjacent hard screens 2, and the width of the urine collection box 4 matches the width of the hard screen 2.

Claims

1. A structure of a bottom plate of a metabolic cage for experimental mice, which is compact and has a function of separating solid and liquid, characterized in that, The bottom plate structure is three layers, the upper layer is the strip-shaped support rod (1) with upward convex surface arranged at intervals, the middle layer is the strip-shaped hard screen (2) with upward convex surface arranged at intervals between adjacent support rods (1), and the lower layer is the collecting disc (5) with strip-shaped feces collecting box (3) and strip-shaped urine collecting box (4) arranged at intervals, and each feces collecting box (3) is located between adjacent hard screens (2), The support rod (1) and the hard screen (2) are fixedly installed at the bottom of the experimental mouse metabolic cage, the collecting disc (5) is put into the experimental mouse metabolic cage through the opening on the side of the experimental mouse metabolic cage, and is placed on the bottom surface in the experimental mouse metabolic cage.

2. The compact and solid-liquid separation experimental mouse metabolic cage bottom plate structure according to claim 1, wherein, The top of the support rod (1) is an outward convex curved surface, the side is a vertical surface or a downward outward extending inclined surface, and the bottom is a flat surface or an inward concave surface.

3. The compact and solid-liquid separation experimental mouse metabolic cage bottom plate structure according to claim 1, characterized in that, The hard screen (2) has an "∧" shaped cross section.

4. The compact and solid-liquid separation experimental mouse metabolic cage bottom plate structure according to claim 1, wherein, The gap width between adjacent support rods (1) is less than the width of the hard screen (2), the width of the feces collecting box (3) matches the gap width between adjacent hard screens (2), and the width of the urine collecting box (4) matches the width of the hard screen (2).

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