CN215778864U

CN215778864U - Experimental rat fixing device

Info

Publication number: CN215778864U
Application number: CN202121735448.XU
Authority: CN
Inventors: 于文; 袁越
Original assignee: Beijing Childrens Hospital
Current assignee: Beijing Childrens Hospital
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-11
Anticipated expiration: 2031-07-28

Abstract

The utility model provides an experimental rat fixing device, which comprises: the accommodating bin is fixed on the base, and a sliding hole is formed in the connecting position of the accommodating bin and the base along the length direction of the accommodating bin; the accommodating bin is a cylindrical cavity body, and a front end enclosure and a rear end enclosure which are matched with the accommodating bin in diameter are respectively arranged at two ends of the accommodating bin; the accommodating bin also comprises a fixing part which is arranged in the accommodating bin in a sliding way; the fixed part includes: the clamping plate is arranged in the accommodating bin, one end of the limiting plate is arranged on the inner wall of the accommodating bin, the other end of the limiting plate is arranged on the lower bottom surface of the base, and a nut is fixed on the lower bottom surface of the limiting plate; the one end of first threaded rod is rotated and is connected the lower extreme at the chucking board, and first threaded rod runs through the limiting plate and with nut threaded connection, the other end of first threaded rod is fixed with a regulating block, wherein rotate the regulating block and can drive the chucking board jacking upwards. This practicality can more conveniently fix experiment rat through the chucking board.

Description

Experimental rat fixing device

Technical Field

The utility model relates to the technical field of experimental instruments, in particular to an experimental rat fixing device.

Background

Application No.: CN201920304526.7, publication No.: CN209884416U, a fixing device of laboratory mice, the utility model discloses a fixing device of laboratory mice, the on-line screen storage device comprises a base, hold the mouse ware, the screw rod, the push pedal, preceding adjustable fender and back adjustable fender, hold the mouse ware and fix on the base, hold before the mouse ware is seted up, the back end, hold the top of mouse ware and set up logical groove, it is preceding to lead to the groove to link up, the back end, set up two rectangular form recesses on the base, two recesses are located respectively, before, the position of back end, respectively be equipped with the dead lever in two recesses, preceding adjustable fender and back adjustable fender's lower extreme embedding recess is connected with the dead lever, it is rotatory to walk around the dead lever, end before the adjustable fender shutoff before the rotation, end behind the adjustable fender shutoff of rotation, screw rod and preceding adjustable fender upper end screw-thread fit, the screw rod rigid coupling push pedal, the back-and-forth movement of rotatory screw control push pedal. The utility model discloses an accelerate work efficiency, reduce the operation degree of difficulty of fixed process, the control push pedal depth limits the home range of mouse, prevents that mouse from rocking in fixing device, flees, still newly-increased mouse mode of going into, and the practicality is strong.

However, the fundamental purpose of such a mouse fixing device is to limit the range of motion of the mouse, the limbs of the mouse still step on the inner wall of the mouse container, and at the same time, because the mouse is different in size and weight, the diameter of the mouse container is often larger than that of the mouse, and the rat can still move within the diameter range of the mouse container after the two ends of the mouse are blocked, so it is necessary to develop a rat experimental fixing device capable of emptying the limbs of the rat.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the four limbs of the rat can still climb on the inner wall of the rat container, and the utility model provides an experimental rat fixing device to solve the problems.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an experimental rat fixation device comprising: the accommodating bin is fixed on the base, and a sliding hole is formed in the connecting position of the accommodating bin and the base along the length direction of the accommodating bin; the accommodating bin is a cylindrical cavity, and a front seal head and a rear seal head which are matched with the accommodating bin in diameter are respectively arranged at two ends of the accommodating bin;

the accommodating bin also comprises a fixing part which is arranged in the accommodating bin in a sliding way; the fixing portion includes: the clamping plate is arranged in the accommodating bin, one end of the limiting plate is arranged on the inner wall of the accommodating bin, the other end of the limiting plate is arranged on the lower bottom surface of the base, and a nut is fixed on the lower bottom surface of the limiting plate;

the one end of first threaded rod is rotated and is connected the lower extreme of chucking plate, first threaded rod run through the limiting plate and with nut threaded connection, the other end of first threaded rod is fixed with a regulating block, wherein

The adjusting block is rotated to drive the clamping plate to lift upwards.

Preferably, the clamping plate is arc-shaped and is close to the lower inner wall of the accommodating bin, wherein

The clamping plate can be tightly attached to the abdomen of the rat by sliding.

Preferably, the limit plate includes: interior stopper, outer stopper and fixed column, interior stopper sets up hold in the storehouse, just the lower extreme of interior stopper personally submits circular-arcly hug closely hold the interior diapire in storehouse, outer stopper is hugged closely the lower bottom surface of base, the fixed column is fixed respectively for well hollow column and both ends interior stopper with on the outer stopper, interior stopper with outer stopper seted up respectively with the through-hole of first threaded rod looks adaptation.

Preferably, the base is further provided with two strip-shaped grooves, the two grooves are respectively arranged at two ends of the accommodating bin, the front seal head and the rear seal head are respectively arranged in the two grooves in a sliding manner, wherein

The containing bin can be closed/opened by sliding the front seal head and the rear seal head.

Preferably, the front head includes: the push plate is arranged on the inner side of the end sealing plate, the diameter of the push plate is smaller than the inner diameter of the accommodating bin, one end of the second threaded rod is rotatably connected to the push plate, and the second threaded rod is in threaded connection with the end sealing plate; wherein

And the second threaded rod is rotated to drive the push plate to move towards the accommodating bin.

Preferably, the containing bin is provided with a through groove, and the through groove penetrates through two ends of the containing bin.

Preferably, the rear end enclosure is further provided with an open slot, and the opening direction of the open slot faces the accommodating bin.

The utility model has the beneficial effects that: the utility model provides an experiment rat fixing device, includes the base and holds the storehouse, it is equipped with a fixed part in the storehouse to hold, the fixed part includes: chucking board, limiting plate and first threaded rod, the chucking board sets up hold in the storehouse, limiting plate one end sets up hold the storehouse inner wall, the other end setting of limiting plate is in the lower bottom surface of base, the chucking board can make progress the jacking and hug closely the belly of rat, the chucking board is circular-arcly, and laminating belly that such design can be better when the chucking board makes progress the jacking rat plays the fixed action, the utility model discloses simple structure, convenient operation makes progress the jacking through the step-up board after the rat gets into and holds the storehouse for rat four limbs vacate, has strengthened the fixed action to the rat.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a preferred embodiment of an experimental rat fixing device according to the present invention;

FIG. 2 is a perspective view of an experimental rat holding device of the present invention;

FIG. 3 is a perspective view of the stationary portion of the present invention;

fig. 4 is a cross-sectional view of the fixing part of the present invention.

In the drawings

The device comprises a base 1, a groove 11, a containing bin 2, a sliding hole 21, a front seal head 22, a push plate 221, a second threaded rod 222, a seal head plate 223, a rear seal head 23, an opening groove 231 and a through groove 24;

the fixing part 3, the clamping plate 31, the limiting plate 32, the inner limiting block 321, the outer limiting block 322, the fixing column 323, the first threaded rod 33, the nut 34 and the adjusting block 35.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 4, the present invention provides an experimental rat fixing device, including: the device comprises a base 1 and a containing bin 2, wherein the containing bin 2 is fixed on the base 1, and a sliding hole 21 is formed in the connecting position of the containing bin 2 and the base 1 along the length direction of the containing bin 2; the accommodating bin 2 is a cylindrical cavity body, and the accommodating bin 2 is a transparent cylindrical cavity body; a front seal head 22 and a rear seal head 23 which are matched with the diameter of the accommodating bin 2 are respectively arranged at two ends of the accommodating bin 2; the front head 22 and the rear head 23 can move synchronously to close/open the containing bin 2; the accommodating chamber 2 further comprises a fixing part 3, the fixing part 3 is slidably arranged in the accommodating chamber 2, and the fixing part 3 can horizontally move in the sliding hole 21; the fixing portion 3 includes: the clamping plate 31 is arranged in the accommodating bin 2, the clamping plate 31 can be lifted from the inner bottom wall of the accommodating bin 2 to the inner top wall, one end of the limiting plate 32 is arranged on the inner wall of the accommodating bin 2, the other end of the limiting plate 32 is arranged on the lower bottom surface of the base 1, and a nut 34 is fixed on the lower bottom surface of the limiting plate 32; one end of the first threaded rod 33 is rotatably connected to the lower end of the clamping plate 31, the first threaded rod 33 penetrates through the limiting plate 32 and is in threaded connection with the nut 34, and the clamping plate 31 can be driven to lift upwards by rotating the first threaded rod 33; the other end of the first threaded rod 33 is fixed with an adjusting block 35, wherein the adjusting block 35 can drive the clamping plate 31 to lift upwards by rotating. The utility model has simple structure and convenient operation, and can lift the four limbs of the rat to be in the air by lifting the clamping plate 31 arranged in the accommodating bin 2 upwards, thus being helpful to prevent the four limbs of the rat from climbing after landing, and the adjusting block 35 is rotated to drive the clamping plate 31 to lift the rat upwards, thereby avoiding directly grabbing the rat by hand and avoiding the risk of being bitten by the rat due to improper operation; the clamping plate 31 is arc-shaped and is close to the lower inner wall of the accommodating bin 2, the clamping plate 31 is arc-shaped, on one hand, the clamping plate 31 is favorably attached to the abdomen of a rat to fix the rat from two sides of the abdomen, on the other hand, the arc-shaped clamping plate 31 can also be better attached to the inner bottom wall of the accommodating bin 2, so that the arc length of the clamping plate 31 is larger, and the contact area between the clamping plate 31 and the abdomen of the rat can be increased; wherein slide chucking plate 31 can hug closely the belly of rat, chucking plate 31 slidable sets up in sliding hole 21, slide chucking plate 31 can make chucking plate 31 is in the belly position of rat back at the upwards jacking.

Optionally, the limiting plate 32 includes: the inner limiting block 321 is arranged in the accommodating bin 2, the lower end surface of the inner limiting block 321 is arc-shaped and is tightly attached to the inner bottom wall of the accommodating bin 2, one side of the inner limiting block 321 is close to the inner bottom wall of the accommodating bin 2, and the other side of the inner limiting block 321 is close to the lower bottom wall of the limiting plate 32; the outer limiting block 322 is tightly attached to the lower bottom surface of the base 1, the nut 34 is fixed to the lower bottom surface of the outer limiting block 322, the fixing column 323 is a hollow column, two ends of the fixing column 323 are respectively fixed to the inner limiting block 321 and the outer limiting block 322, the first threaded rod 33 penetrates through the fixing column 323, and the hollow inner diameter of the fixing column 323 is larger than the diameter of the first threaded rod 33; interior stopper 321 with outer stopper 322 seted up respectively with the through-hole of first threaded rod 33 looks adaptation, first threaded rod 33 certainly chucking plate 31 runs through downwards as the starting point interior limiting plate 32 with outer limiting plate 32, just first threaded rod 33 with nut 34 threaded connection rotates first threaded rod 33 can the jacking chucking plate 31 rebound.

Preferably, the base 1 is further provided with two strip-shaped grooves 11, the grooves 11 are arranged at two ends of the accommodating bin 2 along the width direction of the accommodating bin 2, the two grooves 11 are respectively arranged at two ends of the accommodating bin 2, the front seal head 22 and the rear seal head 23 are respectively slidably arranged in the two grooves 11, and the two ends of the accommodating bin 2 can be closed by moving the front seal head 22 and the rear seal head 23; after the rat enters the accommodating bin 2 from the rear end enclosure 23, moving the front end enclosure 22 can block one end of the accommodating bin 2; wherein sliding the front head 22 and the rear head 23 can close/open the accommodating chamber 2.

Optionally, the front head 22 includes: a push plate 221, a second threaded rod 222 and a head sealing plate 223, wherein the push plate 221 is arranged at the inner side of the accommodating chamber 2, the diameter of the push plate 221 is smaller than the inner diameter of the accommodating chamber 2, and the push plate 221 can move towards the inner part of the accommodating chamber 2 so as to limit the rat from climbing in the accommodating chamber 2; one end of the second threaded rod 222 is rotatably connected to the push plate 221, a threaded block is further arranged at the other end of the second threaded rod 222, the second threaded rod 222 can be driven to rotate by rotating the threaded block, and the second threaded rod 222 is in threaded connection with the head plate 223; wherein, the second threaded rod 222 can be rotated to drive the push plate 221 to move towards the accommodating chamber 2, and the threaded block can be rotated to drive the push plate 221 to move towards the accommodating chamber 2, so as to limit the moving range of the rat in the accommodating chamber 2 until the rat can not move in the horizontal direction.

It is optional, hold and set up logical groove 24 on the storehouse 2, it runs through to lead to groove 24 hold the both ends of storehouse 2, it conveniently injects or the work of drawing blood to the rat that holds in the storehouse 2 to lead to groove 24, it can set up to lead to groove 24 hold the last parietal of storehouse 2, also can set up the both sides that hold storehouse 2, open slot 231 has still been seted up on the back head 23, open slot 231 with the centre of a circle of back head 23 extends to the outer wall as the starting point, open slot 231 is spacing fixed by the rat and is holding the back in storehouse 2, and the tail of rat can pass open slot 231 is put in the outside that holds storehouse 2, the opening direction orientation of open slot 231 hold storehouse 2, and the tail of rat passes through open slot 231 is placed hold the outside of storehouse 2, makes things convenient for the experimenter to carry out relevant experimental study to the tail of rat.

The working principle is as follows:

sliding the front seal head 22 and the rear seal 23 to open two ends of the accommodating bin 2, enabling the rat to enter the accommodating bin 2 from the rear seal head 23, sliding the front seal head 22 to close one end of the accommodating bin 2, sliding the rear seal head 23 to completely close the accommodating bin 2 after the rat completely enters the accommodating bin 2, and rotating the second threaded rod 222 to push the push plate 221 to move towards the rear seal head 23 until the head and the tail of the rat are blocked and cannot move; sliding the limiting plate 32 to drive the clamping plate 31 to move in the accommodating bin 2 until the clamping plate 31 is positioned at the lower part of the abdomen of the rat, rotating the adjusting block 35 to drive the first threaded rod 33 to rotate at the moment, so as to drive the clamping plate 31 to lift the rat upwards until the back of the rat is attached to the top wall of the accommodating bin 2, and at the moment, the four limbs of the rat are empty and cannot climb continuously; through setting up logical groove 24 on holding storehouse 2 can carry out relevant experiment to the rat after fixing, the tail of rat passes open slot 231 is located hold the outside of storehouse 2 also makes things convenient for the experimenter to carry out relevant experiment to the afterbody.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. An experimental rat fixation device, comprising: the device comprises a base (1) and a containing bin (2), wherein the containing bin (2) is fixed on the base (1), and a sliding hole (21) is formed in the connecting position of the containing bin (2) and the base (1) along the length direction of the containing bin (2); the accommodating bin (2) is a cylindrical cavity, and a front seal head (22) and a rear seal head (23) which are matched with the accommodating bin (2) in diameter are respectively arranged at two ends of the accommodating bin (2);

the accommodating bin (2) further comprises a fixing part (3), and the fixing part (3) is slidably arranged in the accommodating bin (2); the fixing part (3) includes: the clamping plate (31) is arranged in the accommodating bin (2), one end of the limiting plate (32) is arranged on the inner wall of the accommodating bin (2), the other end of the limiting plate (32) is arranged on the lower bottom surface of the base (1), and a nut (34) is fixed on the lower bottom surface of the limiting plate (32);

the one end of first threaded rod (33) is rotated and is connected the lower extreme of chucking plate (31), first threaded rod (33) run through limiting plate (32) and with nut (34) threaded connection, the other end of first threaded rod (33) is fixed with an adjusting block (35), wherein

The adjusting block (35) is rotated to drive the clamping plate (31) to lift upwards.

2. The experimental rat fixing device according to claim 1,

the clamping plate (31) is arc-shaped and is close to the lower inner wall of the accommodating bin (2), wherein

The clamping plate (31) can be slid to be tightly attached to the abdomen of the rat.

3. The experimental rat fixing device according to claim 2,

the limit plate (32) includes: interior stopper (321), outer stopper (322) and fixed column (323), interior stopper (321) set up hold in the storehouse (2), just the lower extreme personally submits circular-arcly of interior stopper (321) is hugged closely hold the interior diapire of storehouse (2), outer stopper (322) are hugged closely the lower bottom surface of base (1), fixed column (323) are fixed respectively for cavity post and both ends interior stopper (321) with on outer stopper (322), interior stopper (321) with outer stopper (322) seted up respectively with the through-hole of first threaded rod (33) looks adaptation.

4. The experimental rat fixing device according to claim 3,

the base (1) is also provided with two strip-shaped grooves (11), the two grooves (11) are respectively arranged at two ends of the accommodating bin (2), and the front seal head (22) and the rear seal head (23) are respectively arranged in the two grooves (11) in a sliding manner; wherein

The containing bin (2) can be closed/opened by sliding the front seal head (22) and the rear seal head (23).

5. The experimental rat fixing device according to claim 4,

the front head (22) comprises: the push plate (221), a second threaded rod (222) and an end sealing plate (223), the push plate (221) is arranged on the inner side of the end sealing plate (223), the diameter of the push plate (221) is smaller than the inner diameter of the accommodating bin (2), one end of the second threaded rod (222) is rotatably connected to the push plate (221), and the second threaded rod (222) is in threaded connection with the end sealing plate (223); wherein

The second threaded rod (222) is rotated to drive the push plate (221) to move towards the accommodating bin (2).

6. The experimental rat fixing device according to claim 5,

a through groove (24) is formed in the containing bin (2), and the through groove (24) penetrates through two ends of the containing bin (2).

7. The experimental rat fixing device according to claim 6,

an opening groove (231) is further formed in the rear end enclosure (23), and the opening direction of the opening groove (231) faces the accommodating bin (2).