WO2018086137A1

WO2018086137A1 - Pump body clamping apparatus

Info

Publication number: WO2018086137A1
Application number: PCT/CN2016/105797
Authority: WO
Inventors: 罗凤玲
Original assignee: 惠州科赛医疗有限公司
Priority date: 2016-11-14
Filing date: 2016-11-14
Publication date: 2018-05-17
Also published as: CN207837645U

Abstract

A pump body clamping apparatus, comprising a fixing member (10), a rotating shaft (11), a driven member (12), and a clamping ring (14). A fixing plate (101) of the fixing member (10) comprises a pump body setting opening (1013) and a rotating shaft hole (1014); a protection shell (102) of the fixing member (10) comprises a pump body accommodating groove (1021) and at least one pair of lateral openings (1022); the pump body accommodating groove (1021) corresponds to the pump body setting opening (1013); each pair of lateral openings (1022) are disposed opposite to each other; the rotating shaft (11) penetrates through the rotating shaft hole (1014), and comprises a first end (111) and a second end (112); the driven member (12) penetrates through the second end (112) of the rotating shaft (11), and comprises a driven pivot part (122); a connection rod (13) comprises a first end (131) and a second end (132); the first end (131) of the connection rod (13) is pivotally connected to the driven pivot part (122); the clamping ring (14) is sleeved on the protection shell (102), and comprises a clamping pivot part (140); the second end (132) of the connection rod (13) is pivotally connected to the clamping pivot part (140); the inner side wall of the clamping ring (14) comprises at least one pair of clamping blocks (142); each pair of clamping blocks (142) are disposed opposite to each other; the rotating shaft (11) drives the driven member (12) to rotate, and the driven member (12) drives the clamping ring (14) to rotate by means of the connection rod (13); each pair of clamping blocks (142) separately enter or are separated from a pair of corresponding lateral openings (1022). The pump body clamping apparatus is simple in structure and easy to operate, and firmly fixes a pump body on a device, thereby avoiding the pump body falling off from the device in use.

Description

Pump body clamping device

Technical field

The invention relates to the technical field of pump body fixing, in particular to a pump body clamping device, which can be applied to medical equipment.

Background technique

At present, some medical devices need to be driven by a pump body, so that a pump body needs to be provided on the medical device, for example, a medical pump is connected to the medical waterjet device, but if the pump body is not particularly fixed, the vibration generated by the pump body during use is likely to cause the pump body. Loosening or dropping from the device causes the operation of the device to be interrupted, and even the connection between the pump body and the device is damaged, resulting in a significant increase in cost. Therefore, it is necessary to develop a device for stably fixing the pump body to the device. Although there are devices for fixing the pump body to the device, the structure is complicated and it is not easy to assemble.

Summary of the invention

In view of the deficiencies in the prior art, it is an object of the present invention to provide a pump body clamping device.

In order to solve the above technical problem, the present application discloses a pump body clamping device, comprising: a fixing member having a fixing plate and a protective casing, the fixing plate comprising a pump body fixing portion and being fixed to the pump body a rotating shaft setting portion, the pump body fixing portion has a pump body providing opening, the rotating shaft setting portion has a rotating shaft hole, the protective shell is disposed at the pump body fixing portion, and has a pump body receiving portion a pump body accommodating groove corresponding to the pump body, wherein the protective case has at least one pair of lateral openings, each pair of lateral openings are oppositely disposed; and a rotating shaft is bored through the rotating shaft And having a first end and a second end; a follower passing through the second end of the rotating shaft, the follower having a driven pivot joint; and a connecting rod having the first And the second end, the first end of the connecting rod is pivotally connected to the And the clamping ring has a clamping pivoting portion, the second end of the connecting rod is pivotally connected to the clamping pivoting portion, and the inner side wall of the clamping ring has at least one For the clamping block, each pair of clamping blocks are oppositely disposed; wherein the rotating shaft drives the driven member to rotate, and the driven member drives the clamping ring to rotate through the connecting rod, each pair The clamping blocks respectively enter or exit the corresponding pair of lateral openings.

According to an embodiment of the present application, the follower has a fixed through hole, and the second end of the rotating shaft is disposed through the fixed through hole.

According to an embodiment of the present application, the second end portion of the rotating shaft has a rectangular cross section with an arc shape on both sides, and a cross-sectional shape of the fixed through hole corresponds to a cross-sectional shape of the second end portion of the connecting rod.

According to an embodiment of the present application, the protective case has a rectangular cross section and an arc shape on both sides thereof, and the pump body is provided with an opening shape corresponding to a cross-sectional shape of the protective case.

According to an embodiment of the present application, the at least one pair of clamping blocks are arranged in a spiral.

According to an embodiment of the present application, the method further includes an sensing element disposed at an end of the second end of the rotating shaft, the sensing element has an sensing slot, and the second end of the rotating shaft The end has a sensing portion corresponding to the sensing slot.

According to an embodiment of the present application, the sensing element is a photoelectric sensing element.

According to an embodiment of the present application, the above further includes a turning wrench, the turning wrench being disposed at the first end of the rotating shaft.

According to an embodiment of the present application, the fixing plate further includes at least one fixing protrusion, the at least one fixing protrusion is disposed around the pump body fixing portion, and the at least one fixing protrusion and the rotating shaft setting portion are respectively respectively Has a fixed hole.

The present invention provides another pump body clamping device, comprising: a fixing member having a fixing plate and a protective casing, the fixing plate comprising a pump body fixing portion and a rotating shaft setting connected to the pump body fixing portion The pump body fixing portion has a pump body setting opening, the rotating shaft setting portion has a rotating shaft through hole, the protective case is disposed at the pump body fixing portion, and has a pump body receiving groove, the pump body The accommodating groove is provided with an opening corresponding to the pump body, the protective case has at least one pair of lateral openings, and each pair of lateral openings is oppositely disposed; the rotating shaft is bored through the rotating shaft and has a first end Department and second end; driven a second end of the rotating shaft, the follower has a plurality of driven pivot joints; a plurality of links, each of the links having a first end and a second end, a first end of each of the links is pivotally connected to the corresponding one of the driven pivoting portions; and a plurality of clamping rings, each of the clamping rings has a locking pivoting portion, and the second end of each of the connecting rods a locking pivoting portion of the corresponding clamping ring, the inner side wall of each of the clamping rings has at least one pair of clamping blocks, each pair of clamping blocks being oppositely disposed; wherein the rotating shaft drives The follower rotates, the follower drives the plurality of clamping rings to rotate by the plurality of connecting rods, and at least one pair of clamping blocks of each of the clamping rings respectively enter or leave the corresponding one To the side opening.

According to an embodiment of the present application, the follower includes a plurality of driven blocks, each driven block has the fixed through hole, and each driven pivotal portion is disposed at a corresponding one of the driven blocks.

According to an embodiment of the present application, at least one pair of clamping blocks of each of the clamping rings is arranged in a spiral.

Compared with the prior art, the present application can obtain the following technical effects:

The present invention provides a pump body clamping device, which drives a clamping ring to clamp a pump body or release a pump body by a rotating shaft, a driven member and a connecting rod. The structure is simple, easy to operate, and the pump body is stably fixed. On the device, avoid the pump body falling off the device during use.

DRAWINGS

Fig. 1 is a perspective view of a pump body chucking device of a first embodiment of the present application.

Fig. 2 is an assembled view of the pump body clamping device of the first embodiment of the present application.

Fig. 3 is a view showing a state of use of the pump body chucking device of the first embodiment of the present application.

Fig. 4 is a view showing a state in which the pump body of the first embodiment of the present invention is assembled to the pump body chucking device.

Fig. 5 is a view showing a state in which the pump body of the first embodiment of the present invention is placed on a clamp ring.

Fig. 6 is a view showing a state in which the pump body of the first embodiment of the present application is clamped to the clamping ring.

Figure 7 is a perspective view of a pump body chucking device of a second embodiment of the present application.

Fig. 8 is an assembled view of the pump body chucking device of the third embodiment of the present application.

Fig. 9 is an assembled view of the pump body chucking device of the fourth embodiment of the present application.

Figure 10 is a perspective view of a pump body chucking device of a fifth embodiment of the present application.

detailed description

In the following, various embodiments of the present application are disclosed in the drawings. For the sake of clarity, the details of the invention are described in the following description. However, it should be understood that these practical details are not intended to limit the application. That is, in some embodiments of the present application, these practical details are not necessary. In addition, some of the conventional structures and components are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

The use of "first", "second", etc., as used herein, does not specifically mean the order or order, nor is it intended to limit the application, only to distinguish components that are described in the same technical terms or Just do it.

1 and 2 are a perspective view and an assembled view of a pump body clamping device 1 according to a first embodiment of the present invention; as shown in the figure, the present embodiment provides a pump body clamping device 1 and a pump body card. The fastening device 1 includes a fixing member 10, a rotating shaft 11, a follower member 12, a connecting rod 13 and a clamping ring 14. The fixing member 10 includes a fixing plate 101 and a protective case 102. The fixed plate 101 has a pump body fixing portion 1011 and a rotating shaft mounting portion 1012 connected to the pump body fixing portion 1011. The pump body fixing portion 1011 of the present embodiment has a circular plate body and has a pump body opening 1013. The rotating shaft setting portion 1012 is an elongated plate body that is connected to one side of the pump body fixing portion 1011 and extends outward from the side of the pump body fixing portion 1011. The end of the rotating shaft setting portion 1012 has a rotating shaft through hole 1014. The protective casing 102 is disposed on the pump body fixing portion 1011 of the fixed plate 101, and has a pump body accommodating groove 1021 corresponding to the pump body opening 1013. The side wall of the protective casing 102 has a pair of lateral perforations 1022, and a pair of lateral perforations 1022 are oppositely disposed. The fixing plate 101 of the present embodiment includes a fixing protrusion 1015. The fixing protrusion 1015 is disposed on the other side of the pump body fixing portion 1011, and is opposite to the rotating shaft setting portion 1012. The fixing protrusion 1015 and the rotating shaft setting portion 1012 are respectively The fixing hole 1016 having the fixing hole 1016 and the fixing protrusion 1015 is provided corresponding to the fixing hole 1016 of the rotating shaft setting portion 1012.

The rotating shaft 11 has a first end portion 111 and a second end portion 112, and the second end portion 112 passes through the rotating shaft through hole 1014 so as to pass through the rotating shaft through hole 1014 of the rotating shaft setting portion 1012, and the follower 12 has The through hole 121 is fixed, and the second end portion 112 of the rotating shaft 11 is bored through the fixed through hole 121. The cross-sectional shape of the second end portion 112 of the present embodiment is a rectangle having an arc shape on both sides, and the cross-sectional shape of the fixed through hole 121 corresponds to the cross-sectional shape of the second end portion 112, because the cross section of the second end portion 112 of the present embodiment The shape is non-circular. When the second end portion 112 is bored through the fixed through hole 121, the rotating shaft 11 cannot rotate in the fixed through hole 121 of the follower 12, and the rotating shaft 11 will drive the follower 12 to rotate. The first end portion 111 of the rotating shaft 11 is further provided with a turning wrench 113.

The connecting rod 13 includes a first end 131 and a second end 132. The first end 131 of the connecting rod 13 is pivotally connected to the driven pivoting portion 122 of the follower 12, and the clamping ring 14 is sleeved on the protective shell of the fixing member 10. 102. The second end 132 of the connecting rod 13 is pivotally connected to the clamping pivoting portion 140 of the clamping ring 14. When the rotating shaft 11 drives the follower When the 12 is rotated, the follower 12 drives the clamping ring 14 to rotate by the connecting rod 13. The clamping ring 14 of the embodiment includes a clamping ring body 141 and a pair of clamping blocks 142. The pair of clamping blocks 142 are disposed on the inner side wall of the clamping ring body 141 and are oppositely disposed. When the follower 12 drives the clamping ring 14 to rotate through the connecting rod 13, the pair of clamping blocks 142 of the clamping ring 14 respectively enter or leave the pair of lateral openings 1022 of the protective casing 102, and the pair of clamping blocks 142 respectively A pair of lateral openings 1022 are accessed, and the slots 1421 of each of the clamping blocks 142 are located within the corresponding lateral openings 1022. The pair of clamping blocks 142 of this embodiment are arranged in a spiral.

Referring to FIG. 3, FIG. 4, FIG. 5 and FIG. 6, FIG. 3 is a view showing a state of use of the pump body clamping device 1 of the first embodiment of the present application, and a state diagram of the pump body 3 assembled to the pump body clamping device 1. a state diagram of the pump body 3 disposed on the clamping ring 14 and a state in which the pump body 3 is clamped to the clamping ring 14; as shown, the pump body clamping device 1 of the present embodiment is disposed on the medical device 2, The fixing plate 101 of the fixing member 10 is fixed to the connecting portion 21 of the medical device 2, and the protective shell 102 faces the connecting portion 21, wherein the fixing plate 101 is locked to the connecting portion 21 by two locking members 15, that is, the two locking members 15 are respectively worn. Two fixing holes 1016 are locked to the two locking holes 211 of the connecting portion 21 . Then, the medical pump body 3 is placed into the pump body receiving groove 1021 of the protective casing 102 from the pump body setting opening 1013. The cross-sectional shape of the pump body 3 of the present embodiment is a rectangular shape with curved sides on both sides, that is, an opening is provided with the pump body. 1013 corresponds to the cross-sectional shape of the pump body receiving groove 1021. The pump body 3 has a pair of opposite fixing grooves 31, and the pair of fixing grooves 31 are respectively located on the curved surfaces 32 on both sides of the pump body 3, and are arranged in a spiral shape. The pair of clamping blocks 142 of the clamping ring 14 are respectively located on the upper surface and the lower surface of the protective casing 102, that is, a pair of lateral opening 1022 of the pair of clamping blocks 142 not respectively entering the protective casing 102 and a pair of the pump body 3. The fixing groove 31.

Then, the user drives the rotating wrench 113 to rotate, the rotating wrench 113 drives the rotating shaft 11 to rotate clockwise, the rotating shaft 11 drives the driven member 12 to rotate clockwise, and the driven member 12 drives the clamping ring 14 through the connecting rod 13 to Rotating clockwise, a pair of clamping blocks 142 respectively enter a pair of lateral openings 1022 of the protective casing 102 and a pair of fixing grooves 31 of the pump body 3, and each clamping block 142 is engaged with the corresponding fixing groove 31, and A pair of clamping blocks 142 and a pair of fixing slots 31 are arranged in a spiral. When each clamping block 142 is engaged with the corresponding fixing slot 31, the rotating shaft 11 continues to drive the follower 12 to rotate, and the follower 12 passes. The connecting rod 13 drives the clamping ring 14 to rotate, and the pair of clamping blocks 14 of the clamping ring 14 drive the pump body 3 to the doctor The treatment device 2 is close to the two clamping members 142 to clamp the pump body 3, to prevent the pump body 3 from being detached from the pump body clamping device 1, and to prevent the vibration of the pump body 3 from being excessively detached from the medical device 2 when the pump body 3 is actuated. The direction in which the clamping ring 14 is clamped to the pump body 3 and the direction in which the pump body 3 is loosened are mainly determined by the shape of the connecting rod 13. The shape of the connecting rod 13 of the present embodiment is only one implementation of the present application. Aspect.

Please refer to FIG. 7 , which is a perspective view of the pump body clamping device 1 of the second embodiment of the present invention. As shown in the figure, the pump body fixing portion 1011 of the fixing plate 101 of the fixing member 10 of the above embodiment is only provided with rotation. The fixing portion 1015 of the fixing plate 101 of the present embodiment is provided with three fixing protrusions 1015. One of the three fixing protrusions 1015 is disposed on the pump body fixing portion 1011. One side corresponds to the rotating shaft setting portion 1012, and the other two fixing protrusions 1015 are respectively disposed on the upper side and the lower side of the pump body fixing portion 1011, and are disposed opposite to each other. Each of the fixing protrusions 1015 has a fixing hole 1016. The fixing hole 1016 of the rotating shaft setting portion 1012 is opposite to the fixing hole 1016 of the fixing protrusion 1015 of the corresponding rotating shaft setting portion 1012, and two of the opposite fixing protrusions 1015 The fixing holes 1016 are opposed to each other. The four locking members 15 respectively pass through the corresponding fixing holes 1016 and are locked on the medical device. In this embodiment, by installing more fixing holes 1016, the stability of the fixing member 10 fixed to the medical device is increased, and the pump body card is avoided. The fastening device 1 is detached from the medical device when in use.

Please refer to FIG. 8 , which is an assembled view of the pump body clamping device 1 of the third embodiment of the present invention; as shown in the figure, the inner side wall of the clamping ring body 141 of the clamping ring 14 of the above embodiment is provided with a pair of cards. A pair of clamping blocks 142 are disposed opposite each other. The inner side wall of the clamping ring body 141 of the embodiment is provided with two pairs of clamping blocks 142. Each pair of clamping blocks 142 are oppositely disposed, and the two pairs of clamping blocks 142 are arranged in a spiral. The two sides of the protective shell 102 respectively have two pairs of lateral openings 1022. The two lateral openings 1022 on one side of the protective shell 102 are opposite to the two lateral openings 1022 on the other side, that is, each pair of lateral openings 1022 are oppositely disposed. . The pump body 3 also has two pairs of fixing slots 31. Each pair of fixing slots 31 are respectively located on the curved surfaces of the pump body 3. The two fixing slots 31 on both sides of the pump body 3 respectively correspond to the two sides of the protective shell 102. Lateral opening 1022. When the rotating shaft 11 drives the follower 12 to rotate, the follower 12 drives the clamping ring 14 to rotate through the connecting rod 13, so that each pair of the clamping blocks 142 respectively enter the corresponding two lateral openings 1022 and two fixing slots. 31, in order to clamp the pump body 3, so that the stability of the pump body 3 fixed to the pump body clamping device 1 is better. The above clamping ring Two or more pairs of clamping blocks 142 may be disposed on the inner side wall of the body 141, and the functions thereof are the same as those described above, and details are not described herein again. However, the protective casing 102 may also be provided with only a pair of lateral openings 1022, and the two pairs of clamping blocks 142 may simultaneously enter a corresponding pair of lateral openings 1022.

Please refer to FIG. 9 , which is an assembled view of the pump body clamping device 1 of the fourth embodiment of the present application; as shown, the pump body clamping device 1 of the above embodiment has only one connecting rod 13 and a clamping ring. The pump body clamping device 1 of the present embodiment has two connecting rods 13 and two clamping rings 14, so that the follower 12 has two driven pivoting portions 122 arranged side by side, each of the connecting rods 13 The first ends 131 are respectively pivotally connected to the corresponding driven pivoting portions 122, and the second ends 132 of each of the connecting rods 13 are respectively pivotally connected to the locking pivoting portions 140 of the corresponding clamping rings 14. The structure of each of the clamping rings 14 is the same as that of the clamping ring 14 of the first embodiment, and the structure of the protective casing 102 and the pump body 3 of the present embodiment and the protective casing 102 of the third embodiment are not described herein. The same as the pump body 3, when the rotating shaft 11 drives the follower 12 to rotate, the follower 12 drives the two clamping rings 14 to rotate by the two connecting rods 13, respectively, so that the two clamping rings 14 are fastened. The block 142 enters the corresponding two lateral openings 1022 and the two fixing slots 31 respectively, so that the two clamping rings 14 are clamped to the pump body 3, so that the stability of the pump body 3 fixed to the pump body clamping device 1 is better. The number of the connecting rod 13 and the clamping ring 14 may be two or more, and the function thereof is the same as the above, and details are not described herein again. However, the follower 12 of the embodiment has two driven pivoting portions 122, which can divide the follower 12 into two driven blocks, each of which has a driven pivoting portion 122, which can also be achieved. The above functions will not be described here.

Please refer to FIG. 10 , which is a perspective view of the pump body clamping device 1 of the fifth embodiment of the present invention. As shown, the pump body clamping device 1 of the present embodiment further includes an inductive component 16 , and the sensing component 16 is disposed on the rotation. The end of the second end portion 112 of the shaft 11 has an inductive element 16 having an inductive slot 161, and the end of the second end 112 of the rotatable shaft 11 has a sensing portion 114. When the rotating shaft 11 rotates to drive the follower 12 to rotate, the follower 12 drives the clamping ring 14 to rotate by the connecting rod 13, so that when the clamping ring 14 is clamped to the pump body, the second end portion 112 of the rotating shaft 11 is located. The sensing portion 114 at the end enters the sensing slot 161 of the sensing element 16, such that the sensing element 16 confirms that the clamping ring 14 has clamped the pump body. In the manner in which the sensing element 16 is actuated, the sensing element 16 can be a photoelectric sensing element, and the sensing slot 161 has a light source therein. When the sensing portion 114 enters the sensing slot 161, the sensing portion 114 blocks the light source in the sensing slot 161, so that the sensing component 16 can determine that the clamping ring 14 has clamped the pump body. The above is only one of the sensing components 16 of the present application. In other embodiments, other types of sensing elements 16 may also be applied to this, and details are not described herein again. The sensing element 16 of this embodiment can be applied to the above embodiments, and details are not described herein again.

In summary, the present application provides a pump body clamping device, which drives the clamping ring to clamp the pump body or release the clamping state of the pump body through the rotating shaft, the driven member and the connecting rod, and has a simple structure and is easy to operate. Firmly fix the pump body to the device to prevent the pump body from falling off the device during use.

The above description is only for the embodiments of the present application and is not intended to limit the application. Various changes and modifications can be made to the present application by those skilled in the art. Any modifications, equivalents, improvements, etc. made within the spirit and principles of the present application are intended to be included within the scope of the appended claims.

Claims

A pump body clamping device, comprising:

a fixing member having a fixing plate and a protective casing, the fixing plate comprising a pump body fixing portion and a rotating shaft setting portion connected to the pump body fixing portion, the pump body fixing portion having a pump body setting opening, the rotating shaft The setting portion has a rotating shaft through hole, the protective shell is disposed on the pump body fixing portion, and has a pump body receiving groove, the pump body receiving groove corresponding to the pump body is provided with an opening, and the protective shell has at least one For lateral openings, each pair of lateral openings is oppositely disposed;

a rotating shaft penetrating through the rotating shaft and having a first end and a second end;

a follower is disposed at a second end of the rotating shaft, the follower has a driven pivoting portion;

a connecting rod having a first end and a second end, the first end of the connecting rod being pivotally connected to the driven pivoting portion;

a clamping ring, which is sleeved on the protective casing and has a clamping pivoting portion, the second end of the connecting rod is pivotally connected to the clamping pivoting portion, and the inner side wall of the clamping ring has at least a pair of clamping blocks, each pair of clamping blocks being oppositely disposed;

The rotating shaft drives the driven member to rotate, and the driven member drives the clamping ring to rotate through the connecting rod, and each pair of clamping blocks respectively enters or separates from a corresponding pair of lateral openings .
The pump body clamping device according to claim 1, wherein the follower has a fixed through hole, and the second end of the rotating shaft is disposed through the fixed through hole.
The pump body clamping device according to claim 2, wherein the second end portion of the rotating shaft has a rectangular cross section and an arc shape on both sides thereof, and the cross-sectional shape of the fixed perforation corresponds to the connection The cross-sectional shape of the second end of the rod.
The pump body clamping device according to claim 1, wherein a cross-sectional shape of the protective case The shape is a rectangle, and both sides are curved, and the shape of the pump body opening is corresponding to the cross-sectional shape of the protective shell.
The pump body chucking device according to claim 4, wherein said at least one pair of clamping blocks are arranged in a spiral.
The pump body clamping device according to claim 1, further comprising an inductive element, wherein the sensing element is disposed at an end of the second end of the rotating shaft, and the sensing element has an sensing slot. The end of the second end of the rotating shaft has a sensing portion corresponding to the sensing slot.
The pump body clamping device according to claim 6, wherein the sensing element is a photoelectric sensing element.
A pump body clamping device according to claim 1, further comprising a turning wrench, said turning wrench being disposed at a first end of said rotating shaft.
The pump body clamping device according to claim 1, wherein the fixing plate further comprises at least one fixing protrusion, and the at least one fixing protrusion is disposed around the pump body fixing portion, the at least A fixing lug and a rotating shaft setting portion respectively have fixing holes.
A pump body clamping device, comprising:

a fixing member having a fixing plate and a protective casing, the fixing plate comprising a pump body fixing portion and a rotating shaft setting portion connected to the pump body fixing portion, the pump body fixing portion having a pump body setting opening, the rotating shaft The setting portion has a rotating shaft through hole, the protective shell is disposed on the pump body fixing portion, and has a pump body receiving groove, the pump body receiving groove corresponding to the pump body is provided with an opening, and the protective shell has at least one Sideways open Port, each pair of lateral openings is oppositely disposed;

a rotating shaft penetrating through the rotating shaft and having a first end and a second end;

a follower is disposed at the second end of the rotating shaft, the follower has a plurality of driven pivot joints;

a plurality of links, each of the links having a first end and a second end, the first end of each of the links being pivotally connected to the corresponding one of the driven pivot joints;

a plurality of clamping rings disposed on the protective casing, each of the clamping rings having a locking pivoting portion, wherein the second end of each of the connecting rods is pivotally connected to the clamping of the corresponding clamping ring a pivoting portion, the inner side wall of each of the clamping rings has at least one pair of clamping blocks, and each pair of clamping blocks are oppositely disposed;

The rotating shaft drives the driven member to rotate, and the driven member drives the plurality of clamping rings to rotate through the plurality of connecting rods, and at least one pair of clamping blocks of each of the clamping rings respectively Enter or exit the corresponding pair of lateral openings.
The pump body clamping device according to claim 10, wherein the follower has a fixed through hole, and the second end of the rotating shaft is disposed through the fixed through hole.
The pump body clamping device according to claim 11, wherein the follower comprises a plurality of driven blocks, each of the driven blocks having the fixed perforations, and each of the driven pivoting portions is disposed corresponding to The driven block.
The pump body clamping device according to claim 11 or 12, wherein the second end portion of the rotating shaft has a rectangular cross section and an arc shape on both sides thereof, and the cross-sectional shape of the fixed perforation corresponds to The cross-sectional shape of the second end of the connecting rod.
The pump body clamping device according to claim 10, wherein the protective shell has a rectangular cross section and an arc shape on both sides, and the pump body is provided with an opening shape corresponding to the sectional shape of the protective shell. shape.
The pump body clamping device according to claim 14, wherein at least one pair of clamping blocks of each of the clamping rings are arranged in a spiral.
The pump body clamping device according to claim 10, further comprising an inductive element, wherein the sensing element is disposed at an end of the second end of the rotating shaft, and the sensing element has an sensing slot. The end of the second end of the rotating shaft has a sensing portion corresponding to the sensing slot.
The pump body clamping device according to claim 16, wherein the sensing element is a photoelectric sensing element.
The pump body chucking device according to claim 10, further comprising a turning wrench, the turning wrench being disposed at the first end of the rotating shaft.
The pump body clamping device according to claim 10, wherein the fixing plate further comprises at least one fixing protrusion, and the at least one fixing protrusion is disposed around the pump body fixing portion, the at least A fixing lug and a rotating shaft setting portion respectively have fixing holes.