CN209908730U - Peristaltic pump and sample inlet pipe fixing assembly thereof - Google Patents

Abstract

The utility model discloses a subassembly is fixed to peristaltic pump appearance pipe of advancing, including the bottom plate that has lower centre gripping groove and the top plate that has last centre gripping groove, go up centre gripping groove and lower centre gripping groove and set up relatively so that form confined centre gripping hole, no matter how change of appearance pipe, the appearance pipe of advancing is all injectd in the centre gripping hole, makes the appearance pipe of advancing deviate from the centre gripping hole extremely difficultly, reduces the risk that appearance pipe takes place to fluctuate, effectively guarantees to advance the appearance smoothly, consequently the utility model provides a subassembly is fixed to peristaltic pump appearance pipe of advancing is favorable to promoting the repeatability and the accuracy of peristaltic pump. The utility model discloses still disclose the peristaltic pump of the fixed subassembly of peristaltic pump appearance pipe of advancing.

Description

Peristaltic pump and sample inlet pipe fixing assembly thereof

Technical Field

The utility model relates to a peristaltic pump field, in particular to subassembly is fixed to peristaltic pump advance appearance pipe. The utility model discloses still relate to a peristaltic pump including fixed subassembly of peristaltic pump sampling pipe.

Background

As a novel fluid delivery pump, the peristaltic pump has the advantages of capability of quickly replacing a pump pipe, capability of reversely running fluid, capability of dry running, low maintenance cost and the like, so that the peristaltic pump is widely applied to the industries of medical treatment, food, chemical industry, smelting and the like.

The prior art peristaltic pump generally comprises a driver and at least one section of sample tube for conveying fluid, and two adjacent sections of sample tubes are generally connected by a tube connector. In order to ensure smooth sample introduction of a sample introduction pipe, the conventional peristaltic pump is generally provided with a pipe clamp, and the pipe clamp is provided with an open type clamping groove so as to be matched with a pipe connector to fix the sample introduction pipe. However, the existing sampling tube is very easy to be elongated under the action of the driver, the outer diameter of the elongated sampling tube is smaller than the width of the open clamping groove, and the sampling tube is very easy to be separated from the open clamping groove under the action of the fluid, so that the fluctuation of the sampling tube occurs in the sampling process, the sampling is not smooth, and the repeatability and the accuracy of the peristaltic pump are poor.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a subassembly is fixed to peristaltic pump appearance pipe effectively prevents to advance the appearance pipe and deviates from, reduces the risk that the appearance pipe takes place to fluctuate, advances a kind smoothly, so be favorable to promoting peristaltic pump's repeatability and accuracy. Another object of the utility model is to provide a peristaltic pump including fixed subassembly of peristaltic pump appearance pipe of advancing, the fault rate is lower, and work is more stable, and the reliability is higher.

The specific scheme is as follows:

the utility model provides a subassembly is fixed to peristaltic pump advance appearance pipe, include:

a lower fixing plate having a lower clamping groove;

have last centre gripping groove and be used for the butt in the union coupling head with an upper fixed plate between the bottom plate, go up the centre gripping groove with the relative setting of centre gripping groove is in order to form after the two draws close each other and to have the closed form and be used for the centre gripping hole in order to fix the appearance pipe with the periphery counterbalance of appearance pipe.

Preferably, the upper fixing plate is an elastic fixing plate.

Preferably, the clamping device further comprises a locking part which is arranged between the upper fixing plate and the lower fixing plate and is used for locking the upper fixing plate and the lower fixing plate after the clamping hole is formed.

Preferably, the locking part includes:

the locking block is arranged on the first side of the lower fixing plate;

and the locking belt is arranged on the second side of the lower fixing plate and is matched with the locking block to lock the upper fixing plate after the clamping hole is formed.

Preferably, one end of the upper fixing plate, which is close to the lower fixing plate, is fixedly provided with a V-shaped guide plate for guiding the upper fixing plate to enter between the lower fixing plate and the pipe connector.

Preferably, a sliding groove and a sliding block which are matched with each other and used for guiding the upper fixing plate to slide are arranged between the contact surfaces of the upper fixing plate and the lower fixing plate.

The utility model also provides a peristaltic pump, including the pump body and as above arbitrary peristaltic pump advance the fixed subassembly of appearance pipe, the bottom plate detachably of the fixed subassembly of peristaltic pump advance appearance pipe is fixed in on the pump body.

For background art, the utility model provides a subassembly is fixed to peristaltic pump appearance pipe of advancing, including the bottom plate that has lower centre gripping groove and the top plate that has last centre gripping groove, go up centre gripping groove and lower centre gripping groove and set up relatively so that form confined centre gripping hole, no matter how change of appearance pipe, the appearance pipe of advancing is all injectd in the centre gripping hole, makes the appearance pipe of advancing deviate from the centre gripping hole extremely difficult, reduces the risk that appearance pipe of advancing takes place undulant, effectively guarantees to advance kind smoothly, consequently the utility model provides a subassembly is fixed to peristaltic pump appearance pipe of advancing is favorable to promoting the repeatability and the accuracy of peristaltic pump.

The utility model provides a peristaltic pump including fixed subassembly of peristaltic pump appearance pipe advances, because the appearance pipe advances kind smoothly for the risk that the appearance pipe took place to block up reduces, and the fault rate reduces thereupon, and appearance pipe work is more stable, therefore the operational reliability is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a mounting structure diagram of a peristaltic pump sample inlet tube fixing assembly according to an embodiment of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a view showing the structure of the lower fixing plate;

fig. 4 is a structural view of the upper fixing plate.

The reference numbers are as follows:

a sampling tube 1, a tube connector 2, an upper fixing plate 3 and a lower fixing plate 4;

a lower holding groove 31;

and an upper holding groove 41.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, fig. 1 is a structural diagram illustrating an installation structure of a peristaltic pump sample inlet tube fixing assembly according to an embodiment of the present invention; FIG. 2 is a right side view of FIG. 1; FIG. 3 is a view showing the structure of the lower fixing plate; fig. 4 is a structural view of the upper fixing plate.

The embodiment of the utility model discloses subassembly is fixed to peristaltic pump appearance pipe of advancing, including the bottom plate 4 that has lower centre gripping groove 31 and the upper fixed plate 3 that has last centre gripping groove 41, wherein, lower centre gripping groove 31 and last centre gripping groove 41 are open-type recess, in this embodiment, go up centre gripping groove 41 and lower centre gripping groove 31 and all preferably be the U type recess that width and appearance pipe 1 external diameter equal, but the structure of the two is not limited to this.

Referring to the prior art, the sampling pipe 1 comprises at least one hose, and two adjacent hoses are connected through the pipe connector 2. The upper fixing plate 3 can be inserted into the pipe connector 2 and the lower fixing plate 4, and the two sides of the upper fixing plate 3 respectively offset with the pipe connector 2 and the lower fixing plate 4, so that the lower fixing plate 4 is fixed on the pump body, and the upper fixing plate 3 is preliminarily fixed.

The upper clamping groove 41 and the lower clamping groove 31 are arranged oppositely, when the upper fixing plate 3 is inserted between the pipe connector 2 and the lower fixing plate 4, the upper clamping groove 41 and the lower clamping groove 31 are drawn close to each other until a closed clamping hole is formed between the upper clamping groove 41 and the lower clamping groove 31, and the clamping hole is abutted to the periphery of the sampling pipe 1, so that the sampling pipe 1 is fixed. In this embodiment, the upper holding groove 41 having a U-shaped structure and the lower holding groove 31 having a U-shaped structure are closed to form a circular holding hole, and the inner diameter of the holding hole is identical to the outer diameter of the sampling tube 1.

Therefore, advance appearance pipe 1 and be injectd to the confined centre gripping hole in, make advance appearance pipe 1 extremely difficult follow the centre gripping hole and deviate from, reduce advance appearance pipe 1 and take place undulant risk, effectively guarantee to advance appearance pipe 1 and advance the appearance smoothly, consequently the utility model provides a fixed subassembly of peristaltic pump advance appearance pipe is favorable to promoting the repeatability and the accuracy of peristaltic pump.

Considering that the distance between the lower fixing plate 4 and the pipe connector 2 fluctuates within a certain range, it is preferable that the upper fixing plate 3 is an elastic fixing plate, and specifically, may be a rubber fixing plate or a nylon fixing plate, so that the thickness of the upper fixing plate 3 can be varied between 0.05 cm and 0.1cm, so as to increase the use range of the upper fixing plate 3, thereby improving the adaptability of the upper fixing plate 3. Of course, the thickness range of the upper fixing plate 3 can be adjusted accordingly according to peristaltic pumps of different specifications.

For preventing that upper fixed plate 3 from deviating from between coupling head 2 and bottom plate 4 under the ripple action of sample tube 1, preferably, the utility model discloses still including locating the sticking department between upper fixed plate 3 and the bottom plate 4, the sticking department locks upper fixed plate 3 and bottom plate 4 after forming the centre gripping hole, further prevents that upper fixed plate 3 from taking place not hard up, is favorable to further promoting peristaltic pump's repeatability and accuracy.

Preferably, in this embodiment, the locking portion includes locking piece and locking area, and wherein, the locking piece is located the first side of bottom plate 4, and the locking area is located the second side of bottom plate 4, and after inserting upper fixed plate 3, the locking area is pulled manually, and the locking area hugs closely upper fixed plate 3, fixes the locking area to the locking piece again, makes upper fixed plate 3 and bottom plate 4 link firmly as an organic whole, makes upper fixed plate 3 realize fixedly, further reduces the risk that upper fixed plate 3 deviates from, and operational reliability is higher. Of course, the type of the locking portion is not limited thereto, and other types of locking portions are employed without affecting the achievement of the object of the present invention.

For making the upper fixed plate 3 insert between lower fixed plate 4 and union coupling head 2 smoothly, the one end that the upper fixed plate 3 is close to lower fixed plate 4 has set firmly the V type and has led into the board, when inserting upper fixed plate 3, consider that upper fixed plate 3 is flexible fixed plate, the pointed end of V nature introduction board gets into between lower fixed plate 4 and union coupling head 2 earlier, thereby guide upper fixed plate 3 to get into between lower fixed plate 4 and the union coupling head 2 smoothly, overcome because of upper fixed plate 3 very easily warp or thickness is thick and be difficult to the male problem, the insertion degree of difficulty of upper fixed plate 3 diminishes, it is more convenient to operate.

Preferably, be equipped with the spout and the slider of mutually supporting between the contact surface of upper fixed plate 3 and bottom plate 4, the slider removes along the spout to guide upper fixed plate 3 to slide, prevent that upper fixed plate 3 from taking place crooked at the insertion in-process, and then avoid the serious extrusion of centre gripping hole or wearing and tearing sampling pipe 1, be favorable to prolonging the life of sampling pipe 1. In this embodiment, the slide block is disposed on the upper fixing plate 3, and the slide groove is disposed on the lower fixing plate 4, however, interchanging the disposition positions of the two does not affect the realization of the objective of the present invention.

The utility model also provides a peristaltic pump, including the pump body and as above peristaltic pump advance the fixed subassembly of appearance pipe, 4 detachably of bottom plate are fixed in on the pump body. In this embodiment, the lower fixing plate 4 is preferably an L-shaped plate, which includes a horizontal plate and a vertical plate disposed perpendicular to each other, and the lower clamping groove 31 is provided on the vertical plate, and the horizontal plate is detachably fixed to the pump body by a set screw. Because the sampling tube 1 advances the appearance smoothly for the risk that the jam took place for the sampling tube 1 reduces, and the fault rate reduces thereupon, and the sampling tube 1 work is more stable, therefore the operational reliability is higher.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. A peristaltic pump advances fixed subassembly of appearance pipe which characterized in that includes:

a lower fixing plate (4) having a lower clamping groove (31);

have last centre gripping groove (41) and be used for the butt in union coupling head (2) with upper fixed plate (3) between bottom plate (4), go up centre gripping groove (41) with bottom gripping groove (31) set up relatively in order to form after the two draws close each other and have the shape of closing and be used for the centre gripping hole that offsets in order to fix into appearance pipe (1) with the periphery of advancing appearance pipe (1).

2. Peristaltic pump sample inlet tube securing assembly according to claim 1, wherein the upper securing plate (3) is an elastic securing plate.

3. The peristaltic pump sample inlet tube fixing assembly according to claim 1, further comprising a locking portion provided between the upper fixing plate (3) and the lower fixing plate (4) to lock both after the clamping hole is formed.

4. A peristaltic pump sample tube securing assembly as recited in claim 3, wherein the locking portion comprises:

the locking block is arranged on the first side of the lower fixing plate (4);

and the locking belt is arranged on the second side of the lower fixing plate (4) and is matched with the locking block to lock the upper fixing plate (3) after the clamping hole is formed.

5. The peristaltic pump sample inlet tube fixing assembly according to any one of claims 2 to 4, wherein a V-shaped guide plate for guiding the upper fixing plate (3) into a space between the lower fixing plate (4) and the tube connector (2) is fixedly arranged at one end of the upper fixing plate (3) close to the lower fixing plate (4).

6. The peristaltic pump sampling tube fixing assembly according to claim 5, wherein a sliding groove and a sliding block which are matched with each other and used for guiding the upper fixing plate (3) to slide are arranged between the contact surfaces of the upper fixing plate (3) and the lower fixing plate (4).

7. A peristaltic pump, characterized in that it comprises a pump body and a peristaltic pump sample tube fixing assembly as claimed in any one of claims 1 to 6, the lower fixing plate (4) of said peristaltic pump sample tube fixing assembly being removably fixed to said pump body.

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