CN214464868U

CN214464868U - Pump body clamping device and pump

Info

Publication number: CN214464868U
Application number: CN202120142685.9U
Authority: CN
Inventors: 陈松林; 吴衍; 孙未
Original assignee: Huizhou Hydro Caresys Medical Co ltd
Current assignee: Huizhou Hydro Caresys Medical Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-10-22
Anticipated expiration: 2031-01-19
Also published as: WO2022156310A1

Abstract

The utility model relates to a pump technical field discloses a pump body chucking device, include: the clamping seat is used for being fixed on one side of the box body, a first channel penetrating through two sides of the clamping seat is formed in the clamping seat, a first end of the first channel is used for inserting a push rod, and a second end of the first channel is used for screwing a pump body in; the pump body seat is arranged in the first channel and can rotate relative to the clamping seat, and a second channel which penetrates through two sides of the pump body seat and is used for inserting and clamping a pump body is formed in the pump body seat; the pump body seat is provided with a pump body, wherein the pump body seat is provided with a clamping seat; when the pump body is inserted into the second channel and screwed in along the first channel, the pump body seat rotates in the first channel, so that the sensor body is located in the detection range of the detection element. The utility model discloses can detect the screw in degree of the pump body on the chucking seat, avoid the not in place emergence of pump body screw in, improve the safety in utilization.

Description

Pump body clamping device and pump

Technical Field

The utility model relates to a pump technical field especially relates to a pump body chucking device and pump.

Background

At present, the working principle of a partial jet pump is as follows: the cam structure or the eccentric shaft connecting rod structure is adopted to drive the rotating disc to do circular motion, the circular motion of the rotating disc is converted into the linear reciprocating motion of the push rod, and then the piston in the pump body is used for pressurizing liquid through the reciprocating motion of the push rod to form a jet flow. Generally, above-mentioned jet pump includes box, the pump body, push rod and chucking fixing base, and the inside fluid flow that supplies of the pump body, and the pump body includes piston cylinder and piston, and the push rod setting can be sharp reciprocating motion in the box inside and in the box, and the pump body passes through the chucking fixing base to be fixed on the box for the push rod can drive piston reciprocating motion in the piston cylinder, so that the pressure changes in the piston cylinder, and then to the fluid pressure boost on the pump body.

In the prior art, the pump body is connected with the clamping fixing seat through the mode of internal and external threads, so that whether the pump body is rotated in place after being inserted into the clamping fixing seat can be judged inaccurately simply by depending on hand feeling or experience, and if the judgment is inaccurate, equipment use faults are easily caused, and even accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pump body chucking device, it can detect the screw in degree of the pump body on the chucking fixing base, avoids the emergence that the pump body screw in is not in place, improves the safety in utilization. Furthermore, the utility model aims at still providing an adopt above-mentioned pump body chucking device's pump.

In order to achieve the above object, the utility model discloses a first aspect provides a pump body chucking device, include:

the clamping seat is used for being fixed on one side of the box body, a first channel penetrating through two sides of the clamping seat is formed in the clamping seat, a first end of the first channel is used for inserting a push rod, and a second end of the first channel is used for screwing a pump body in;

the pump body seat is arranged in the first channel and can rotate relative to the clamping seat, and a second channel which penetrates through two sides of the pump body seat and is used for inserting and clamping a pump body is formed in the pump body seat;

the pump body seat is provided with a pump body, wherein the pump body seat is provided with a clamping seat; when the pump body is inserted into the second channel and screwed in along the first channel, the pump body seat rotates in the first channel, so that the sensor body is located in the detection range of the detection element.

Further, the detection element is a proximity sensor.

Furthermore, the inductor is a bump arranged on the outer side wall of the pump body seat, and the clamping seat is provided with a slot through which the inductor passes.

Furthermore, the detection element is provided with a sensing surface used for detecting the inductor, the sensing surface of the detection element is circular, the outer diameter of the sensing surface of the detection element is 0.5-20 mm, and the minimum distance between the sensing surface of the detection element and the inductor is 0-20 mm.

Furthermore, an internal thread structure is arranged on the inner side wall of the second end of the first channel.

Further, the internal thread structure is a trapezoidal thread, a round thread, a sawtooth thread or a square thread.

In order to achieve the above object, a second aspect of the present invention provides a pump, including a pump body, a box body, and a push rod disposed in the box body, wherein one end of the push rod protrudes from one side of the box body and is exposed outside the box body, and the push rod can make a linear reciprocating motion in the box body, and further including the above pump body clamping device;

the clamping seat is fixed on one side of the box body, and one end, protruding out of the box body, of the push rod is inserted into the second channel along the first end of the first channel.

Furthermore, the pump body comprises a piston cylinder and a piston arranged in the piston cylinder in a sliding mode, one end of the piston cylinder penetrates through the first channel and is inserted into the second channel, and the piston is nested at one end, protruding out of the box body, of the push rod.

Furthermore, the box body is also internally provided with a rotating disc which comprises a transmission shaft and is sleeved on the transmission shaft; the transmission shaft is eccentric setting for the carousel, the push rod is located one end terminal surface butt in the box extremely the lateral wall of carousel.

Furthermore, a sliding bearing for the push rod to pass through is arranged in the box body.

The embodiment of the utility model provides a pump body chucking device compares with prior art, and its beneficial effect lies in:

the utility model discloses be equipped with detecting element on the chucking seat, be equipped with the inductor on pump body seat, insert in the second passageway of pump body seat and along first passageway screw in order to install when the pump body, the screw in degree of the current pump body and chucking seat is judged through the position that detecting element detected the inductor. If the inductor is positioned in the detection range of the detection element, the current pump body is screwed in place, and the rotation of the pump body can be finished; if the inductor is not in the detection range of the detection element, the current pump body is not screwed in place, and the pump body needs to be continuously rotated to adjust the inductor to the detection range of the detection element, so that the operation can be finished, the phenomenon that the pump body is not screwed in place can be effectively avoided, and the use safety is improved.

Drawings

FIG. 1 is a sectional view of the pump body clamping device and the box body according to the present invention;

FIG. 2 is a sectional view of the pump body, pump body clamp and box connection of the present invention;

FIG. 3 is a side view of the pump body clamp of the present invention coupled to the housing;

in the figure, the position of the upper end of the main shaft,

1-a pump body, 11 piston cylinders, 12-pistons, 13-a first pipeline and 14-a second pipeline;

2-a clamping seat, 21-a first channel, 211-an internal thread, 22-a detection element, 221-a sensing surface and 23-a slotted hole;

3-pump body seat, 31-second channel, 32-inductor;

4-a box body;

5-a push rod;

6-a transmission shaft;

7-a turntable;

8-sliding bearing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

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", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-2, the pump body clamping device of the present invention includes a clamping seat 2 and a pump body seat 3, the clamping seat 2 is used to be fixed on one side of the box body 4, and the clamping seat 2 is provided with a first channel 21 running through two sides thereof, a first end of the first channel 21 is used for inserting the push rod 5, and a second end of the first channel 21 is used for screwing the pump body 1; the pump body seat 3 is arranged in the first channel 21 and can rotate relative to the clamping seat 2, and the pump body seat 3 is provided with a second channel 31 which runs through two sides of the pump body seat and is used for inserting and clamping the pump body 1. Meanwhile, the clamping seat 2 is provided with a detection element 22, and the pump body seat 3 is provided with an inductor 32; when the pump body 1 is inserted into the second channel 31 and screwed along the first channel 21, the pump body seat 3 rotates in the first channel 21, so that the sensor body 32 is located in the detection range of the detection element 22.

Based on the above structure, when the pump body 1 is inserted into the second channel 31 of the pump body seat 3 and screwed along the first channel 21 for installation, the position of the inductor 32 is detected by the detecting element 22 to determine the current screwing degree of the pump body 1 and the clamping seat 2. If the sensor 32 is located within the detection range of the detection element 22, it indicates that the pump body 1 is currently screwed in place, and the rotation of the pump body 1 can be finished; if the sensor 32 is not in the detection range of the detection element 22, it indicates that the pump body 1 is not screwed in place, and the pump body 1 needs to be rotated continuously to adjust the sensor 32 to the detection range of the detection element 22, so as to complete the operation, which can effectively avoid the pump body 1 from being screwed in place, and improve the safety in use.

It is understood that the sensing element 22 of the present invention is a conventional sensor, including a contact sensor and a non-contact sensor.

The contact type sensor is a resistance strain type sensor, the resistance strain type sensor is composed of an elastic sensitive element, a resistance strain gauge, a compensation resistor and a shell, when the sensing body 32 rotates along with the pump body seat 3, the sensing body is abutted to the elastic sensitive element, the elastic sensitive element is stressed to deform, the resistance strain gauge attached to the elastic sensitive element is deformed together, then the resistance strain gauge converts the deformation into the change of the resistance value, and when the change of the resistance value of the resistance strain gauge is detected, the pump body 1 can be known to be screwed in place. However, the position of the sensor 32 detected by the touch sensor needs to be directly contacted with the sensor 32, and repeated insertion and removal of the pump body 1 for a long time may cause mutual abrasion between the sensor 32 and the touch sensor, which may result in a short service life of the sensor 32 or the touch sensor, and also reduce reliability of the device.

Therefore, in order to improve detecting element 22's detection precision to and ensure that the pump body 1 can pull out repeatedly on chucking seat 2 and insert the pump body 1, the utility model discloses a detecting element 22 is preferably non-contact sensor, like proximity sensor, preferably capacitanc or inductive proximity sensor, receives external service environment to disturb for a short time, can be applicable to operational environment such as water smoke, greasy dirt, detects the precision height, long service life. When the pump body 1 is inserted into the second channel 31 and screwed in along the first channel 21, the pump body seat 3 rotates in the first channel 21, so that the position of the inductor 32 on the pump body seat 3 changes, and when the inductor 32 moves into the detection range of the proximity sensor, an electric signal is generated inside the proximity sensor to prompt the pump body 1 to be screwed in place, and the use safety of the device is ensured.

Further, in order to observe the position relationship between the inductor 32 and the detecting element 22 by naked eyes, the inductor 32 is a protrusion disposed on the outer side wall of the pump body seat 3, and the fastening seat 2 is opened with a slot 23 for the inductor 32 to pass through. Wherein, inductor 32 and pump body seat 3 can be integrated into one piece structure, if through injection moulding technology or welding or bonding etc. also can be for dismantling the mode of connection, fixed etc. like threaded connection or joint, here the utility model discloses do not do the restriction.

Furthermore, the detecting element 22 has a sensing surface 221 for detecting the inductor 32, the sensing surface 221 is disposed on an end surface of one end of the detecting element 22 and faces the inductor 32, and the other end of the detecting element 22 is a signal output end, and includes a positive power line, a negative power line and a digital signal output line, which are respectively used for being connected to a power supply and a digital processing module for data analysis and processing. Further, the detecting element 22 is preferably a cylindrical structure, so that the sensing surface 221 of the detecting element 22 is circular, and the outer diameter of the sensing surface 221 of the detecting element 22 of the present invention is 0.5-20 mm, which may be 0.6mm, 1mm, 2mm, 5mm, 10mm, 15mm, etc. under the allowance of the assembling error between the pump body 1 and the clamping seat 2; the minimum distance between the sensing surface 221 of the detection element 22 and the sensor 32 is 0 to 20mm, and may be 0.2mm, 0.5mm, 1mm, 2mm, 5mm, or the like. By designing the size and the detection range of the sensing surface 221 of the detecting element 22, the detecting element 22 can smoothly detect the arc-shaped sensor 32, and the detection accuracy is ensured. In general, the smaller the outer diameter of the sensing surface 221 or the minimum distance between the sensing surface 221 and the sensor body 32, the higher the detection accuracy.

In some embodiments, the pump body 1 needs to realize after first passageway 21 internal rotation with chucking seat 2 fixed connection, the utility model discloses be equipped with internal thread 211 structure on the inside wall of first passageway 21 second end, be equipped with on the lateral wall of the pump body 1 that needs the installation with the external screw thread structure of internal thread 211 structure engaged with, realize being connected between the pump body 1 and the chucking seat 2 through threaded connection. Wherein, the utility model discloses an internal thread 211 structure includes one kind in trapezoidal thread or round thread or zigzag thread or square thread, here the utility model discloses do not do the restriction.

To sum up, the embodiment of the utility model provides a pump body chucking device, when the pump body 1 inserts in the second passageway 31 of pump body seat 3 and along first passageway 21 screw in order to install, detect the screw in degree that the position of inductor 32 judged current pump body 1 and chucking seat 2 through detecting element 22. If the sensor 32 is located within the detection range of the detection element 22, it indicates that the pump body 1 is currently screwed in place, and the rotation of the pump body 1 can be finished; if the sensor 32 is not in the detection range of the detection element 22, it indicates that the pump body 1 is not screwed in place, and the pump body 1 needs to be rotated continuously to adjust the sensor 32 to the detection range of the detection element 22, so as to complete the operation, which can effectively avoid the pump body 1 from being screwed in place, and improve the safety in use.

Refer to fig. 2, which is a pump of the present invention including the above-mentioned pump body clamping device. Wherein, the utility model discloses a pump can be for plunger pump etc. and it still includes the pump body 1, box 4 and sets up push rod 5 in box 4, and the one end salient of push rod 5 is in one side of box 4 and expose in the outside of box 4, and push rod 5 can be sharp back and forth movement in box 4, and chucking seat 2 is fixed in one side of box 4, and push rod 5 salient is in second passageway 31 is inserted along the first end of first passageway 21 in the one end of box 4.

Referring to fig. 3, the fastening seat 2 may be fixed to the box 4 by bolts, so that the fastening seat is easy to detach and maintain.

Further, referring to fig. 2, the pump body 1 includes a piston cylinder 11 and a piston 12 slidably disposed in the piston cylinder 11 of the piston 12, one end of the piston cylinder 11 passes through the first passage 21 and is inserted into the second passage 31, and the piston 12 is nested in one end of the push rod 5 protruding from the box body 4. The piston 12 is detachably connected with the push rod 5, and can be in threaded connection or clamped connection and the like, so that different pump bodies 1 are connected with the box body 4 through clamping devices. Meanwhile, the pump body 1 further comprises a first pipeline 13 for inflow of fluid and a second pipeline 14 for outflow of fluid, when the push rod 5 pushes the piston 12 to perform compression movement in the piston cylinder 11, the pressure in the piston cylinder 11 is increased to pressurize the fluid, and the working principle of the pump is further realized.

Further, referring to fig. 1, as a driving method for realizing the linear reciprocating motion of the push rod 5 in the box 4, the utility model discloses a mode of the eccentric shaft driving push rod 5 is gone on, specifically is: the box body 4 is also internally provided with a transmission shaft 6 and a turntable 7 sleeved on the transmission shaft 6; the transmission shaft 6 is eccentrically arranged relative to the rotary table 7, and the end face of one end, located in the box body 4, of the push rod 5 is abutted to the outer side wall of the rotary table 7. Because the transmission shaft 6 is eccentrically arranged relative to the turntable 7, the transmission shaft 67 can push the push rod 5 to do linear reciprocating motion when rotating to drive the turntable 7 to rotate.

Further, referring to fig. 1-2, a sliding bearing 8 for the push rod 5 to pass through is further provided in the case 4. The sliding bearing 8 is fixed inside the box 4, and the push rod 5 passes through the inner ring of the sliding bearing 8 to support and guide the push rod 5, so that the push rod 5 can continuously and stably make linear reciprocating motion.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above do 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pump body clamping device, comprising:

2. The pump body clamping device according to claim 1, characterized in that said detection element is a proximity sensor.

3. The pump body clamping device of claim 2, wherein the sensor body is a protrusion disposed on an outer sidewall of the pump body seat, and the clamping seat defines a slot for the sensor body to pass through.

4. The pump body clamping device according to claim 2, wherein the detecting element has a sensing surface for detecting the sensor body, the sensing surface of the detecting element is circular, the sensing surface of the detecting element has an outer diameter of 0.5-20 mm, and the minimum distance between the sensing surface of the detecting element and the sensor body is 0-20 mm.

5. The pump body clamping assembly of claim 1, wherein the inner sidewall of the second end of the first passageway is provided with an internal thread formation.

6. The pump body clamping device according to claim 5, wherein the internal thread structure is a trapezoidal thread or a round thread or a saw-tooth thread or a square thread.

7. A pump, comprising a pump body, a box body and a push rod arranged in the box body, wherein one end of the push rod protrudes out of one side of the box body and is exposed outside the box body, and the push rod can do linear reciprocating motion in the box body, and the pump is characterized by further comprising a pump body clamping device as claimed in any one of claims 1 to 6;

8. The pump of claim 7, wherein the pump body includes a piston cylinder and a piston slidably disposed within the piston cylinder, wherein one end of the piston cylinder extends through the first passage and into the second passage, and wherein the piston is nested within an end of the pushrod protruding from the housing.

9. The pump of claim 7, wherein the box body further comprises a transmission shaft and a turntable sleeved on the transmission shaft; the transmission shaft is eccentric setting for the carousel, the push rod is located one end terminal surface butt in the box extremely the lateral wall of carousel.

10. The pump of claim 7, wherein a slide bearing is further provided in the housing for the push rod to pass through.