CN217930128U

CN217930128U - Zero reference measuring device of buckle type box body structure

Info

Publication number: CN217930128U
Application number: CN202221538962.9U
Authority: CN
Inventors: 汪利群; 陈宇
Original assignee: Shanghai Senon Electromechanical Equipment Co ltd
Current assignee: Shanghai Senon Electromechanical Equipment Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-29
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to the technical field of medical peristaltic pumps, in particular to a zero reference measuring device of a buckle type box body structure, the device body of which comprises a base, a lower piece, a workpiece fixing component and a lower piece fixing component, wherein the workpiece fixing component and the lower piece fixing component are arranged on the base; the workpiece to be detected is placed on a workpiece placing station on the base, the workpiece to be detected is clamped by the lower pressing piece and the base, the workpiece fixing assembly is clamped on the workpiece to be detected, and the workpiece to be detected and the lower pressing piece are clamped by the lower pressing piece fixing assembly and the base; one side surface of the pressing piece, which is back to the workpiece to be measured, is flushed, is parallel to the bottom surface, and a pressing block protruding towards one side of the workpiece to be measured is arranged on one side surface of the pressing piece, which faces the workpiece to be measured, and the pressing piece is pressed on the workpiece to be measured through the pressing block. The utility model discloses carry out vertical and horizontal direction's fixed to the work piece that awaits measuring, be fit for carrying out quick high accuracy measurement to the less, the narrow card box structure in measurement clearance of volume size, effectively eliminate the measurement blind area among the traditional measuring mode.

Description

Zero reference measuring device of buckle type box body structure

Technical Field

The utility model relates to a medical peristaltic pump technical field, concretely relates to zero-bit reference measuring device of buckle formula box body structure.

Background

The medical peristaltic pump has strict requirements on the placement of the infusion hose, and the infusion hose is ensured to have enough clearance of peristaltic deformation after being fixed in the pump shell. Therefore, in terms of the structural design of the housing of the peristaltic pump, it is necessary to consider whether the peristaltic deformation clearance of the hose can be provided by the squeezing of the outer wall of the infusion hose. In the assembling process of the medical peristaltic pump, two opposite side surfaces or a plurality of shell body split pieces are assembled to form a whole shell in a buckling connection or fastening piece connection mode, for example, as shown in fig. 10, the shell body split piece structure corresponding to one side surface of the medical peristaltic pump is of an approximately rectangular structure (the structure does not belong to a strict rectangular structure because the side surface of the structure is usually provided with a plurality of integrally formed convex or concave structures and even is arc-shaped at the corner part), and the surface of the structure facing to one side of the inner cavity of the pump is provided with a plurality of convex structures 1', and the convex structures 1' are used for forming devices of the inner cavity of the pump, particularly supporting and fixing an infusion hose, and ensuring that the device has enough peristaltic deformation clearance while being fixed; the short edges at two opposite sides are provided with semicircular notches 2', and the notches 2' and the notches on the other shell split piece are formed into a hose inlet and a hose outlet which are convenient for the infusion hose to enter and exit the inner cavity of the pump during assembly. The other opposite side edge is provided with a fastener which comprises a clamping groove 31 'on one side edge and a bent plate part 32' on the other side edge corresponding to the clamping groove, and the bent plate part is convenient to form a hinge structure with an external device of the pump.

After the housing split piece with such a structure is formed, it is generally impossible to quickly and conveniently determine whether the structural size of each structural part, such as each protruding structure 1', reaches the standard. Because the internal space of the medical peristaltic pump is small, the requirement on the dimensional accuracy of each structural part of the medical peristaltic pump is relatively high. Especially the dimension of the protruding structure 1' as shown in fig. 10 will directly affect the hose conveying performance if the problem of large error occurs. There is currently a lack in the market of relevant equipment or methods to achieve high precision determination of the raised structures of such housing components.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a zero-bit reference measuring device of buckle formula box body structure, solve above technical problem.

The utility model provides a technical problem can adopt following technical scheme to realize:

a zero reference measuring device of a buckle type box body structure comprises a device body, wherein the device body comprises a base, a workpiece to be measured is placed and fixed on the base so as to be convenient for an external measuring tool to measure the size data of each position point, the device body comprises a lower pressing piece, a workpiece fixing component and a lower pressing piece fixing component,

the down-pressing piece is used for pressing the workpiece to be measured on the base so as to facilitate the measurement,

the workpiece fixing component is used for fixing the workpiece to be measured from two opposite sides so as to facilitate measurement,

the lower pressing piece fixing component is used for pressing the lower pressing piece on the workpiece to be measured so as to firmly bond the lower pressing piece and the workpiece to be measured together, thus being convenient for keeping the positions of the workpiece to be measured and the lower pressing piece stable during measurement,

the workpiece fixing assembly and the lower pressing piece fixing assembly are arranged on the base;

the base is provided with a workpiece placing station, a workpiece to be measured is placed on the workpiece placing station, the lower pressing piece and the base clamp the workpiece to be measured, the workpiece fixing component clamps the opposite side parts of the workpiece to be measured, and the lower pressing piece fixing component and the base clamp the workpiece to be measured and the lower pressing piece;

the side surface of the workpiece to be measured of pushing down the piece flushes and is parallel to each other with the face of placing of the workpiece to be measured, is equipped with the bellied briquetting to workpiece to be measured one side towards the side surface of the workpiece to be measured, the piece that pushes down passes through the briquetting is pressed on the workpiece to be measured.

The utility model discloses a setting up the device body and providing the zero-bit benchmark for the measurement of medical peristaltic pump's card box structure, the zero benchmark when measuring is regarded as to one side surface that flushes and be parallel to each other with the base plane of following casting die in the structure, realize simultaneously through two fixed subassemblies of push down the cooperation to the work piece that awaits measuring fixed with to measuring the shaping of reference surface, ensure during the measurement that push down piece and work piece all firmly fixed together, and be unchangeable all the time for the position of base, thereby make measurement accuracy guarantee, on this basis, the cooperation is like outside measuring tool such as percentile or amesdial, the size of arbitrary concave-convex structure of accurate survey work piece surface is for the depth of sinking of reference surface fast, so as to provide the data foundation for peristaltic pump manufacturing and check-up.

The down-pressing piece is of a frame-shaped structure and comprises two opposite long sides and two opposite short sides,

the lower pressing piece fixing component comprises two lower pressing ends corresponding to the short edges of the lower pressing pieces, the lower pressing ends are positioned right above the short edges of the lower pressing pieces on the same side,

the long edge of the lower pressing piece is provided with the pressing block.

Any long edge of the lower pressing piece is provided with at least two pressing blocks, and the pressing blocks are spaced from each other.

The workpiece fixing component comprises a moving piece and a fixed piece, the workpiece to be measured is positioned between the moving piece and the fixed piece, the fixed piece is fixed on the base, the moving piece comprises a first clamping piece capable of linearly reciprocating and a first handle driving the first clamping piece to reciprocate,

the first clamping piece pushes the workpiece to be measured to the fixed piece after being pushed along the straight line by operating the first handle, so that the workpiece to be measured is clamped between the movable piece and the fixed piece.

The first clamping piece is provided with at least two protruding ends, and the protruding ends are located on one side end face, facing the workpiece to be measured, of the first clamping piece.

The pressing piece fixing component comprises two pressing piece fixing parts which are respectively arranged at the outer sides of the short sides at two opposite sides of the pressing piece, namely, a pressing piece fixing part is arranged at the outer side of any short side of the two short sides of the pressing piece;

any one of the lower pressing piece fixing pieces is provided with a lower pressing end, and the lower pressing end is positioned above the short edge of the lower pressing piece at the same side, so that the lower pressing end can be pressed on the short edge of the lower pressing piece at the same side.

The pressing end in the above embodiment may be configured to press down the upper surface of the short side of the pressing member after swinging by a swing arm.

The side edge of the pressing piece corresponding to the pressing piece fixing piece is provided with a second positioning hole corresponding to the first positioning hole, and the first positioning hole and the second positioning hole correspond to each other and are internally provided with a positioning pin in a penetrating manner, so that the pressing piece cannot move laterally.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses accessible holding down piece carries out vertical and horizontal direction's fixed to the work piece that awaits measuring, and fixed knot constructs self and forms the measuring datum plane, and the different specification and dimension's of the multiple different grade type of quick adaptation card box structure especially is fit for carrying out quick high accuracy to the less, the constrictive card box structure in measurement gap of bulk size and measures, effectively eliminates the measurement blind area among the traditional measurement mode, improves and measures accurate rate.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the hold-down removed;

FIG. 3 is a schematic diagram of the structure of FIG. 2 with the workpiece to be tested hidden;

fig. 4 is a schematic structural view of a pressing member according to the present invention;

fig. 5 is a schematic view illustrating the pressing member of the present invention pressing down on the workpiece to be measured;

fig. 6 is a schematic structural view of a movable member in the workpiece fixing assembly according to the present invention;

fig. 7 is a first structural schematic view of the hold-down member fixing member of the present invention;

fig. 8 is a second structural schematic view of the hold-down member fixing member of the present invention;

FIG. 9 is a schematic view of a configuration of the first clip member of FIG. 6;

fig. 10 is a schematic structural diagram of a workpiece to be measured according to the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1, the zero reference measuring device of the buckle type box body structure comprises a device body, wherein the device body comprises a base 1, a lower pressing piece 2, a workpiece fixing component 3 and a lower pressing piece fixing component 4. The workpiece 9 to be measured is placed and fixed on the base 1 to facilitate measurement of dimensional data of each position point by an external metrology tool (not shown). The workpiece fixing component 3 and the lower workpiece fixing component 4 are arranged on the base 1.

A workpiece placing station is arranged on the base 1, a workpiece 9 to be measured is placed on the workpiece placing station, the workpiece 9 to be measured is clamped by the lower pressing piece 2 and the base 1, the workpiece fixing component 3 is clamped on the opposite side part of the workpiece 9 to be measured, and the workpiece 9 to be measured and the lower pressing piece 2 are clamped by the lower pressing piece fixing component 4 and the base 1;

one side surface of the lower pressing member 2, which faces away from the workpiece 9 to be measured (i.e., the upward surface of the lower pressing member 2 in fig. 1, which may be regarded as being parallel to the placement base surface of the base 1), is flush with and is parallel to the placement surface of the workpiece 9 to be measured, and one side surface of the lower pressing member 2 facing the workpiece 9 to be measured (i.e., the downward surface of the lower pressing member 2 in fig. 1) is provided with a pressing block protruding toward one side of the workpiece 9 to be measured (fig. 1 shows that in the structure, the workpiece to be measured is located below the lower pressing member, so that the pressing block protrudes downward), and the lower pressing member 2 is pressed on the workpiece 9 to be measured by the pressing block.

It should be noted that the present invention relates to a measuring device, which belongs to a part of the measuring system, and only provides a convenient and stable testing environment for the measurement of the subsequent data, and the measuring device itself does not have the size measuring and metering functions. The utility model discloses under the applicable environment, outside measuring tool then can carry out the selective use relatively freely, for example, choose for use the data that the electron amesdial comes the quick accuracy to acquire each department measuring point, the utility model discloses do not apply for the protection to these measuring tool yet.

The utility model discloses in workpiece to be measured, indicate to divide the piece with buckle joint form assembly forming's medical peristaltic pump shell, in one of them typical application, its classical structure is approximate rectangle structure on the whole (the side has several integrated into one piece's arch or sunk structure usually, be the arc at bight even, therefore it does not belong to strict rectangle structure), this structure has the short side of long side of a set of subtend and a set of subtend, set up the breach of being convenient for the hose to pass on short side usually (assembly forming's casing in pairs, constitute the through-hole structure by the breach), then be equipped with hinge structure's shaping bent plate on the long side.

In some of these embodiments, the workpiece placement station may employ a raised boss projecting from the base surface. As shown in fig. 2 and 3, the boss 101 protrudes from the surface of the base 1 to form a workpiece placing station, which facilitates the positioning of the workpiece 9 to be measured during placing. The utility model discloses in set up boss 101's purpose not only lie in can ensureing that the position is not transfinited to the work piece 9 that awaits measuring, also ensure the installation location of each fixed subassembly (the fixed subassembly of work piece including subtend and the fixed subassembly of the piece that pushes down of subtend), among the structure of the drawing, work piece fixed subassembly 3, push down the two sets of subtend sides setting that fixed subassembly 4 all hugged closely boss 101. For example, fig. 1, 2, and 3 show a structure in which the boss 101 has a rectangular structure, and has a set of short sides and a set of long sides, which correspond to the short opposite sides and the long opposite sides of the workpiece to be measured, respectively. Under this structure setting, the long limit setting of the fixed subassembly 3 laminating boss 101 of work piece, the short edge setting of the fixed subassembly 4 laminating boss 101 of holding down.

The utility model discloses in, can do following setting to pushing down the piece: as shown in fig. 4 and 5, the press-down member 2 is a frame-shaped structure, which includes two opposite long sides 201 and two opposite short sides 202,

as shown in fig. 7 and 8, the hold-down member fixing assembly 4 includes two hold-down ends corresponding to the short sides 202 of the hold-down members 2, the hold-down ends are located right above the short sides 202 of the hold-down members on the same side,

the long side 201 of the lower member 2 is provided with a pressing piece 203.

As shown in fig. 4, the lower press member 2 is formed into four sides after being hollowed out in the central region, and the joint 2001 of the long side and the short side is provided with an arc-shaped bend.

In some embodiments, at least two pressing blocks 203 are arranged on any long side 201 of the lower member 2, and the at least two pressing blocks 203 are spaced from each other.

It should be noted that, in the structure of the casing split piece of the peristaltic pump shown in fig. 4 and 5, the structures of the notch and the bent plate are different, and therefore, the pressing piece on the long side corresponding to the notch on the lower pressing member 2 is different from the pressing piece on the long side corresponding to the bent plate. However, when the pressing block is disposed, it needs to be satisfied that after the pressing member 2 is pressed against the workpiece 9 to be measured, a side surface of the pressing member 2 facing away from the workpiece 9 to be measured is parallel to a workpiece placement surface (i.e., a surface of a workpiece placement station on the base, and when the base boss is disposed, an upper surface of the boss).

The utility model discloses can do following setting to the fixed subassembly of work piece: as shown in fig. 1, 2 and 3, the workpiece fixing assembly 3 includes a movable member 301 and a fixed member 302. As shown in fig. 2 and 3, the workpiece 9 to be measured is located between the movable member 301 and the fixed member 302, and the fixed member 302 is fixed to the base 1. As shown in fig. 6, the movable member 301 comprises a first clamping piece 3011 capable of reciprocating linearly and a first handle 3012 for driving the first clamping piece 3011 to reciprocate,

the workpiece 9 to be measured is clamped between the movable member 301 and the fixed member 302 by operating the first handle 3012 to push the first clamping piece 3011 against the fixed member 302 after advancing along a straight line.

Specifically, as shown in fig. 2 and 3, the movable member 301 and the fixed member 302 of the workpiece fixing assembly 3 are respectively located at the front and rear sides of the workpiece 9 to be measured, and clamp the workpiece 9 to be measured therebetween so as to be immovable in the horizontal direction.

Wherein the fixed member 302 is fixed on the base 1 by a fastener or a welding manner.

The movable piece 301 includes a first support 3013, a first handle 3012 and a first clamping piece 3011, the first support 3013 is fixed on the base 1 by a welding mode or a fastener, a first handle mounting seat 30131 for mounting the first handle 3012 is arranged on the first support 3013, a rotating shaft penetrates through the first support and the first handle 3012, the first handle 3012 can rotate relative to the rotating shaft, the first handle 3012 is connected with the first clamping piece 3011 by a push rod 3014, and the first clamping piece 3011 is pushed by the first handle 3012 in a forward direction (when the structure shown in the figure is located on one side of the handle, a pulling direction for pushing the first clamping piece after clockwise rotation is defined as a forward pulling direction) or the first clamping piece 3011 is released by the first handle 3011 in a reverse direction (relative to the forward pulling direction) to clamp the workpiece 9 to be tested.

The utility model discloses a balanced propulsive force to for first fastener 3011's propulsion direction, can set up according to following structure: in some embodiments, as shown in fig. 6, the first support 3013 is provided with a guide block 30132, and the guide block 30132 is provided with a through hole for the push rod 3014 to pass through, so that the reciprocating pushing direction of the push rod 3014 is kept stable after being guided by the guide block 30132.

In addition, in order to further improve the stability of the structure during operation, the structure can be arranged as follows: as shown in fig. 6, in some embodiments, the guide block 30132 is provided with at least two through holes for the push rods 3014 to pass through, a push rod 3014 is provided in each corresponding through hole, the first clamp 3011 is connected to all the push rods 3014, one push rod 3014 is connected to the first handle 3012, the other push rod 3014 only penetrates through the through hole in the guide block 30132, and when the first clamp 3011 is pushed to the limit position after the first handle 3012 is pulled, the other push rods 3014 only locate in the corresponding through holes of the guide block 30132. Under this structure sets up, can ensure that the promotion to first fastener 3011 is more stable, under some scenes, first fastener 3011's length is longer, at this moment, sets up a plurality of push rods 3014 through the interval, can make the propulsive force evenly act on first fastener 3011, ensures that it impels stably, and the thrust force that acts on the work piece 9 that awaits measuring also is the homogenization dispersion on the tight side of being pushed of the work piece 9 that awaits measuring. The illustrated arrangement shows three pushers 3014 attached to the first jaw piece 3011, with the middle pusher 3014 attached to the first handle 3012 (i.e., the pusher indicated at 3012 in FIG. 6, and the pushers on either side not indicated).

In some embodiments, as shown in fig. 6, a limiting structure 30133 is disposed on the first support 3013, and the limiting structure 30133 prevents the first clamping component 3011 from being pushed beyond the limit to damage the surface of the workpiece to be measured.

On the basis of the above, the push rods 3014 connected to the first handle 3012 may be fixed at one end in the corresponding through holes on the guide block 30132 and at the other end on the limiting structure 30133.

Or, a connecting rod structure is arranged, and one end of each push rod is connected with the connecting rod structure, so that the actions of all the push rods can be synchronized. On the basis, one push rod is connected with the first handle, and when the first handle is operated to advance, all the push rods are pushed out.

In the above embodiment, all the push rods can be connected with the first clamping piece; or, the other end of the push rod connected to the first handle is connected to the first clamping piece (the push rod is also fixedly connected to the connecting rod structure), one end of the other push rods is connected to the connecting rod structure, and the other end of the other push rods passes through the corresponding through hole arranged on the first clamping piece, at this time, a corresponding through hole or slot hole can be arranged on the limiting structure, and in the structure shown in fig. 6, it can be observed that a slot hole (the slot hole is opened on one side above the slot hole) through which the push rod 3014 which is not connected to the first handle 3012 can pass is arranged on the limiting structure 30133. In the structural arrangement, except that the push rod connected with the first handle has the function of pushing the first clamping piece, other push rods only play a role in guiding.

The utility model discloses an ensure the tight effect that pushes away to the workpiece side that awaits measuring, can set up according to following structure: as shown in fig. 9, the first clamping piece 3011 is provided with at least two protruding ends 30111, and the protruding ends 30111 are located on an end surface of the first clamping piece 3011 facing the workpiece to be measured.

With this arrangement, as shown in fig. 6 and 9, a concave structure 30112 may be further disposed on the end surface of the first card 3011, where the convex end 30111 is disposed, and the concave direction of the concave structure is opposite to the convex direction of the convex end 30111, so that the limiting structure 30133 for preventing the first card 3011 from continuously advancing is clamped into the concave structure, and after the clamping, the convex end 30111 may still be exposed to the flush surface of the limiting structure 30133 toward one side of the workpiece to be measured.

The utility model discloses in, protruding end 30111 on the first fastener can set up to be the integral type structure with first fastener body, also can set up to detachable construction, and it can be followed and conveniently dismantled on the first fastener body promptly.

When the integrated structure is adopted, the protruding end 30111 and the first fastener 3011 are integrally formed during manufacturing, and the corresponding first fastener 3011 and the protruding end 30111 need to be customized corresponding to the side structure of each specific type of workpiece to be measured, so that the protruding end 30111 corresponds to the clamping groove on the side of the workpiece to be measured 9 one by one.

When setting up to detachable construction, then one side of first fastener towards the work piece and place station (the work piece that awaits measuring) is equipped with the spout (this spout is not shown to the structure of the drawing, perhaps, can think that all protruding ends in the structure of the drawing have imbedded in the spout), can block into different protruding ends in the spout, and each protruding end can remove in the spout, when waiting to remove to the side draw-in groove corresponding position with on the work piece that awaits measuring, fixes it in this position through structures such as fastener. Under this structure sets up, only need can accomplish different test environment's adaptation through installation, adjustment and the dismantlement of protruding end on first fastener, correspond different work pieces that await measuring.

The utility model discloses can do following setting to the fixed subassembly of lower pressure member: as shown in fig. 1, 2 and 3, the lower press fixing assembly 4 includes two lower press fixing members 401, and the two lower press fixing members 401 are respectively disposed at outer sides of two short sides of the lower press 2, that is, a lower press fixing member 401 is disposed at an outer side of any one of the two short sides of the lower press 2;

as shown in fig. 7, any of the hold-down fixtures 401 has a hold-down end 4011, and the hold-down end 4011 is located above the short side of the hold-down 2 on the same side, so that the hold-down end 4011 can press on the short side of the hold-down on the same side.

The pressing end 4011 in the above embodiment may be configured to press down the upper surface of the short side of the pressing member after swinging by a swing arm.

Specifically, as shown in fig. 7 and 8, the hold-down fixture 401 may be configured as follows: in some embodiments, the hold-down fixture 401 includes a second support 4012, a swing arm 4013, and a pressing rod 4014, wherein one end of the swing arm 4013 is fixedly connected to the pressing rod 4014, and the other end is rotatably connected to the second support 4012, so that the hold-down end 4011 can be pressed on or removed from the short side of the hold-down 2 by the swing of the swing arm 4013.

In some embodiments, the swing structure of hold-down fixture 401 may be configured as follows: as shown in fig. 7, the hold-down fixing member 401 includes a second handle 4015, the second handle 4015 is rotatably connected to a second support 4012 (in the illustrated structure, in order to facilitate pressing of the swing arms 4013, the rotation connection point is located below the rotation connection point of the swing arms 4013 and the second support 4012), the second handle 4015 is connected to a pressing block 4016 (the pressing block 4016 is different from the pressing block 203 on the hold-down member), and the swing arms 4013 are pressed and locked after being pressed by the pressing block 4016 after the second handle 4015 rotates, so that the hold-down end 4011 is pressed against the short side of the hold-down member 2.

In the above embodiment, the lower end of the pressing rod 4014 can be regarded as the depressing end of the hold-down member. Alternatively, the lower end of the pressing rod 4014 is connected to the pressing end 4011. This structure sets up down, and end 4011 pushes down can set up the fastener hole on it, makes it be bolt type fastener after the outer wall of depression bar 4014 lower extreme sets up the external screw thread, makes end 4011 and depression bar 4014 threaded connection push down, and the different end that pushes down of convenient to detach replacement, for example under some scenes, when needing the less end that pushes down of coverage area (the coverage area here refers to the surface area of the pressure of end that pushes down on pushing down), then can replace the end that pushes down that corresponds size and specification fast.

To avoid damaging the surface of the device, a buffer pad may be disposed on the end surface of the pressing end 4011 contacting the pressing member 2, for example, a pad structure made of silica gel or rubber is attached to the end surface of the pressing end.

The utility model discloses in, because the lower pressure member does not have the side direction fixed knot structure as in the fixed knot structure of the work piece that awaits measuring constructs, consequently, can make the lower pressure member also be difficult for removing in the side direction (the horizontal direction of the structure of the drawing) after setting up according to following structure: as shown in fig. 8, a first positioning hole (in the figure, since a positioning pin is already disposed in the first positioning hole, the hole cannot be clearly shown) is disposed at a pressing end 4011' of one of the pressing member fixtures 401, as shown in fig. 4, a second positioning hole 204 corresponding to the first positioning hole is disposed on a side of the pressing member 2 corresponding to the pressing member fixture, and a positioning pin 4017 penetrates through the first positioning hole and the corresponding second positioning hole 204, so that the pressing member 2 cannot move laterally.

Fig. 8 shows an alternative arrangement of the hold-down member fixing structure to that of fig. 7, in which a pressing rod 4014 is connected to a holding-down end 4011 'having two protruding sides, and the holding-down end 4011' is provided with at least one first positioning hole on its protruding structure, as shown in fig. 4 and 5, and a second positioning hole 204 is provided on one side short side 202 of the hold-down member 2. As shown in fig. 1 and 8, the positioning pin 4017 passes through the first positioning hole from top to bottom and then falls into the second positioning hole 204, so that the lower press member 2 is laterally fixed. It should be noted that fig. 8 shows a positioning pin 4017 in a structure in which, in order to prevent the positioning pin from falling from the first positioning hole and the second positioning hole, an end cap is provided on the top portion so as to be integrally formed into a bolt-type structure, but it is not necessary to provide an external thread on the outer wall thereof.

The utility model discloses when setting up holding down piece mounting 401, as shown in fig. 1, 7, 8, can line up a bed hedgehopping piece 8 between the bottom of second support 4012 of holding down piece mounting and base 1. The heightening blocks 8 can be integrally formed during the molding of the base 1, or can be separately manufactured and molded and then connected to the upper surface of the base 1 by fasteners or welding, so as to be located at two opposite sides of the boss 101 and abut against the side edges of the boss 101. The heightening block 8 is provided with a fastener hole for fixedly connecting the second support 4012.

To sum up, the utility model discloses a setting up the device body and providing zero-bit benchmark for the card box structure's of medical peristaltic pump measurement, below the structure flush and with a side surface that the base plane is parallel to each other zero benchmark when measuring, realize simultaneously through two fixed subassemblies of push down the piece to the fixed of work piece that awaits measuring and to the shaping of measuring reference face, ensure during the measurement that push down piece and work piece all firmly fixed together, and invariable all the time for the position of base, thereby make measurement accuracy guarantee, on this basis, the cooperation is like external measuring tool such as percentile or amesdial, the size of arbitrary concave-convex structure of accurate survey work surface is for the depth of sinking of reference face fast, so as to provide the data foundation for peristaltic pump design manufacturing and check-up.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The zero-position reference measuring device of the buckle type box body structure comprises a device body, wherein the device body comprises a base, and a workpiece to be measured is placed and fixed on the base;

2. The zero reference measuring device of a snap-in box structure as claimed in claim 1, wherein the down-pressing member is a frame-shaped structure including two opposing long sides and two opposing short sides,

the lower pressing piece fixing component comprises two lower pressing ends corresponding to the short sides of the lower pressing pieces, the lower pressing ends are positioned right above the short sides of the lower pressing pieces on the same side,

the long edge of the lower pressing piece is provided with the pressing block.

3. The zero reference measuring device of a snap-in box structure according to claim 2, wherein at least two pressing blocks are arranged on any long side of the pressing member, and the at least two pressing blocks are spaced from each other.

4. The zero position reference measuring device of a snap-in box structure according to claim 1, 2 or 3, wherein the workpiece fixing component comprises a movable member and a fixed member, the workpiece to be measured is located between the movable member and the fixed member, the fixed member is fixed on the base, and the movable member comprises a first clamping member capable of linearly reciprocating and a first handle for driving the first clamping member to reciprocate.

5. The zero reference measuring device of a snap-in box structure as claimed in claim 4, wherein the first clip member has at least two protruding ends, and the protruding ends are located on the end surface of the first clip member facing the workpiece to be measured.

6. The zero reference measuring device of a snap-in box structure as claimed in claim 1, 2 or 3, wherein the hold-down member fixing assembly comprises two hold-down member fixing members respectively disposed at outer sides of short sides of two opposite sides of the hold-down member, that is, a hold-down member fixing member is disposed at an outer side of any one of the short sides of the two opposite short sides of the hold-down member;

and any one of the lower pressing piece fixing pieces is provided with a lower pressing end, and the lower pressing end is positioned above the short side of the lower pressing piece at the same side.

7. The zero reference measuring device of a snap-in box structure as claimed in claim 6, wherein a first positioning hole is provided at a pressing end of one of the hold-down members, a second positioning hole corresponding to the first positioning hole is provided at a side of the hold-down member corresponding to the hold-down member, and a positioning pin is inserted into the first positioning hole and the corresponding second positioning hole.