CN212924347U - Multi-connecting-pipe cap placing mechanism and bottle cap pressing device - Google Patents

Abstract

The utility model provides a many even pipes are put and are covered mechanism and bottle lid closing device, including lid casket, gear and damping piece, the lid casket has the storage chamber that holds multirow even pipe lid, has row interval S between two adjacent rows of even pipe lids, and the bottom of storing the chamber has even the export of pipe lid, and the lid casket has the installation department in even the export of pipe lid, and gear revolve connects on the installation department, and gear pitch P is n.1-n.2 XP with the relation of row interval S for S, and n is for being less than 5 positive integer. Under normal conditions, the side edge of the bottommost row of the connecting pipe covers is positioned between two adjacent gear teeth of the gear. The damping member provides a damping force to the gear in a direction opposite to the rotational direction of the gear. When the gear overcomes the damping force and rotates n teeth of a cogwheel, the side edge of the bottommost row of the connecting pipe covers in the multiple rows of the connecting pipe covers is separated from the teeth of the cogwheel, and the gear is restored to the normal state. The utility model discloses can place even the pipe lid on even the bottle, can not once discharge multirow pipe lid even.

Description

Multi-connecting-pipe cap placing mechanism and bottle cap pressing device

Technical Field

The utility model relates to a filling equipment technical field specifically relates to a many connecting pipes are put and are covered mechanism and bottle lid closing device.

Background

At present, many capping mechanisms or screw capping mechanisms exist in the prior art, but most of these mechanisms are used for screwing a single cap onto a single bottle, and because of this, the capping mechanisms or screw capping mechanisms cannot meet the capping operation of multiple connecting tubes used in some special fields, for example, PCR (Polymerase Chain Reaction) eight connecting tubes used in the fields of medicine, etc., after medicines are filled, eight connecting tube caps need to be capped, and the capping mechanisms for screwing a single cap onto a single bottle cannot meet the capping requirement of the eight connecting tubes.

Therefore, it is desirable to provide a cover placing mechanism that can meet the requirement of a multi-connection pipe cover.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art at least partially, the utility model provides a cover mechanism is put to many connecting pipes.

The utility model discloses a cover mechanism is put to many connecting tubes, including lid casket, gear and damping piece. The lid casket has the storage chamber that holds multirow pipe connection lid, has row interval S between two adjacent rows of pipe connection lids, pipe connection lid includes a plurality of pipe covers that link together, the bottom of storing the chamber has pipe connection lid export, the lid casket is in pipe connection lid export has the installation department. The gear is rotationally connected to the mounting part, the relationship between the pitch P of the gear and the row pitch S is n.1-n.2 xP, and n is a positive integer less than 5; under the normal state, the side edge of the bottommost row of the multiple rows of the connecting pipe covers is positioned between two adjacent gear teeth of the gear and is supported by the gear. The damping piece is connected with the gear to provide damping force opposite to the rotation direction of the gear to the gear. When the gear overcomes the damping force to rotate n gear teeth, the side edge of the bottommost row of the multiple rows of the connecting pipe covers is separated from the gear teeth, and the gear is restored to the normal state.

Exemplarily, the gear is installed through the pivot on the installation department, the gear has axial through hole, the gear passes through axial through hole cover is established in the pivot, just axial through hole's pore wall with be formed with annular containing groove between the surface of pivot, the damping piece is the elastic ring, the elastic ring sets up in the annular containing groove.

Exemplarily, the gear is installed on the installation part through a rotating shaft, an accommodating groove is further formed in the installation part, the damping piece is a magnet arranged in the accommodating groove, and the gear is a ferromagnetic piece magnetically connected with the magnet.

Exemplarily, the gear is two, the installation department is two, two the installation department is located respectively the both sides of connecting the pipe cover export, two the gear one-to-one rotates to be connected two on the installation department, and each the gear correspondence is connected with the damping piece.

Illustratively, the gear is connected with a driving piece which is convenient for driving the gear to rotate.

Illustratively, the cap case has a through hole penetrating from a top end of the cap case to a bottom end of the cap case, an inside of the through hole forming the storage chamber, a top end of the through hole forming the cap inlet, and a bottom end of the through hole forming the cap outlet.

Illustratively, in the normal state, the tooth crest of at least one tooth of the gear extends to the inner side of the cavity wall of the storage cavity, and has a distance L with the cavity wall of the storage cavity, and a gap M is provided between the side end of each row of the pipe connecting covers and the cavity wall of the storage cavity, where L > M.

Illustratively, the distance L forms a blocking distance of the gear wheel to the bottommost row of connecting pipe covers, and the blocking distance is 1mm-3 mm.

Illustratively, the gap M is 0.05mm to 0.15 mm.

Illustratively, a handle is connected to the cover box for facilitating lifting and placing of the multi-tube cover placing mechanism.

The utility model discloses a cover mechanism is put to many connecting tubes, the lid casket can save multirow connecting tube lid, under the normal condition, the side edge of the bottom row connecting tube lid in the multirow connecting tube lid is located between two adjacent teeth of a cogwheel of gear, multirow connecting tube lid receives the teeth of a cogwheel to support and keeps in the storage chamber, when the connecting tube lid of the top row receives decurrent thrust or the gear receives driving force of driving piece, gear revolve, the teeth of a cogwheel move towards keeping away from the storage chamber direction, and when gear revolve n teeth of a cogwheel, the side edge of the bottom row connecting tube lid in the multirow connecting tube lid breaks away from the teeth of a cogwheel, the bottom row connecting tube lid falls from connecting tube lid export, and the gear resumes to the normal condition and supports in the below of new bottom row connecting tube lid; if the gear continues to rotate, the actions are repeated, and the tube connecting covers fall from the tube connecting cover outlet row by row; if the thrust or the driving force of the driving part is removed, the gear is restored to the normal state and is kept static under the damping force of the damping part. The utility model discloses a many even pipes are put and are covered mechanism can realize multirow even pipe cap storage, and the multirow even pipe cap that singly arranges is discharged, can not once discharge multirow even pipe cap, discharges the stable performance, and because the gear pitch P and the relation of arranging interval S be S n.1-n.2 XP, when the every n teeth of a cogwheel of rotating of gear, will discharge one row even pipe cap for it is fast to discharge recovery speed.

According to another aspect of the present invention, there is provided a bottle cap pressing device, comprising the multi-connecting-tube cap placing mechanism. Because the multi-connecting-pipe cap placing mechanism has the technical effects, the bottle cap pressing device comprising the multi-connecting-pipe cap placing mechanism also has corresponding technical effects.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail embodiments of the present invention with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. In the drawings, like reference numbers generally represent like parts or steps.

FIG. 1 is a perspective view of a multiple tube capping mechanism according to an embodiment of the present invention (with gears removed);

FIG. 2 is a top view of a multiple tube capping mechanism according to an embodiment of the present invention (with the handle removed);

fig. 3 is a side view of a multiple tube capping mechanism according to an embodiment of the present invention;

fig. 4a is an internal structural view (normal state) of the multiple connecting pipe cap placing mechanism according to the embodiment of the present invention;

FIG. 4b is an enlarged view of portion A of FIG. 4 a;

fig. 5a is an internal structure view of a multi-link cap-placing mechanism according to an embodiment of the present invention (bottom row of link caps falling);

FIG. 5B is an enlarged view of portion B of FIG. 5 a;

fig. 6 is a structural diagram of a damping member and gear connection structure according to an embodiment of the multi-connecting pipe cap placing mechanism of the present invention;

fig. 7 is a structural diagram of a damping member and gear connection structure according to another embodiment of the multiple connecting pipe cap placing mechanism of the present invention.

Wherein the reference symbols are

Cover placing mechanism for 100-multiple connecting pipes

10-cover box

11-storage Chamber

111-connecting pipe cover outlet

112-inlet of connecting pipe cover

101-through hole

102 front face of cover box

103-rear surface of the cover box

12-mounting part

1201-first installation cassette

1202-second installation cartridge

121-mounting groove

122-rotating shaft hole

123-accommodating groove

124-annular containing groove

20-gear

211. 212, 213-teeth

201-axial through hole

30-damping member

40-rotating shaft

50-handle

200-multi-row connecting pipe cover

201-bottom row connecting pipe cover

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the present invention and are not intended to limit the invention to the particular embodiments described herein. Based on the embodiments of the present invention described in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in fig. 1 to 6, the multiple connecting tube capping mechanism 100 includes a cap magazine 10, a gear 20, and a damper 30. Many even pipes are put and are covered mechanism 100 and be used for bottle lid closing device, and are mainly applicable to some special fields, for example eight even pipes that the medical field used, can pass through the utility model provides a bottle lid closing device, it is specific to put through many even pipes that cover mechanism 100 places eight even pipe lids and compresses tightly eight even pipes, accomplishes eight upper cover operations of even pipe.

The cover magazine 10 is used to store a plurality of rows of the tube caps 200 and serves as a base for the rest of the components, it being noted that there is a row spacing S between two adjacent rows of the tube caps, each row of the tube caps has a plurality of tube caps connected together, for example, each row may have 6 tube caps, 8 tube caps, 10 tube caps, etc. Specifically, the cap magazine 10 has a storage chamber 11 for accommodating a plurality of rows of tube connecting caps, the storage chamber 11 is sized according to actual needs, the bottom of the storage chamber 11 has a tube connecting cap outlet 111, and the tube connecting cap outlet 111 is used for allowing the plurality of rows of tube connecting caps to fall down row by row so as to be placed on the tube connecting bottle mouth. In order to facilitate the installation of the gear 20 and the damper 30, the cover box 10 has a mounting portion 12 at the connecting pipe cover outlet 111, for example, a mounting groove 121 and a rotating shaft hole 122 may be disposed on the mounting portion 12, the mounting groove 121 extends upward from the bottom of the cover box 10, and the rotating shaft hole 122 penetrates through the mounting groove 121 from the front surface 102 of the cover box to the rear surface 103 of the cover box.

The gear 20 is rotatably connected to the mounting portion 12, the pitch P of the gear and the row pitch S have a relationship of S ═ n.1-n.2 × P, n is a positive integer less than 5, for example, n ═ 1,2,3,4 … …, and the specific rotational connection is, for example: the gear 20 is rotatably connected to the mounting portion 12 through the rotating shaft 40, the gear 20 is provided with an axial through hole 201, the gear 20 is sleeved on the rotating shaft 40 through the axial through hole 201, and the gear 20 is in clearance fit with the rotating shaft 40 to ensure flexible rotation. Further, the row pitch S is set to n.1 to n.2 × P, where n is 1 and P is 0.5, i.e., when the gear rotates by one pitch P, the plurality of rows of the duct caps 200 fall by one row pitch; for example, n is 2, P is 0.5, and S is 2P, that is, when the gear rotates two pitches P, the multiple rows of tube connecting covers 200 fall one row pitch; for example, when the gear rotates three pitches P, n is 3, P is 0.5, and S is 3P, i.e., when the gear rotates three pitches P, the multiple rows of the tube connecting covers 200 fall one row pitch, … …. Normally, the side edge of the bottom row 201 of the multiple row cover 200 is supported by the gear 20 along the space between two adjacent teeth 211, 212 of the gear (see fig. 4a and 4b)

The damping member 30 is connected to the gear 20 to provide a damping force to the gear 20 opposite to the rotation direction of the gear. Wherein, when the gear 20 is subjected to an external force greater than the damping force (e.g. a downward thrust is applied to the multiple rows of pipe connection caps 200, or a driving force is applied to the gear 20 by a driving member), that is, when the gear 20 overcomes the damping force, the gear 20 rotates, and when the gear 20 rotates n gear teeth, the side edge of the bottommost row of pipe connection caps 201 in the multiple rows of pipe connection caps is disengaged from the gear teeth (e.g. fig. 5a and 5b), so that the bottommost row of pipe connection caps 201 fall from the pipe connection cap outlet 111, and the gear 20 is restored to a normal state and is supported below the new bottommost row of pipe connection caps; if the gear 20 continues to rotate, the actions are repeated, and the tube connecting covers fall from the tube connecting cover outlet row by row; the damping force restores the gear 20 to the normal state if the downward pushing force is removed or the driving force to the gear 20 is removed.

Referring to fig. 6, in an embodiment, the gear 20 is mounted on the mounting portion 12 through the rotating shaft 40, the gear 20 has an axial through hole 201, the gear 20 is sleeved on the rotating shaft 40 through the axial through hole 201, an annular accommodating groove 124 is formed between a hole wall of the axial through hole 201 and an outer surface of the rotating shaft 40, the damping element 30 is an elastic ring, and the elastic ring 30 is disposed in the annular accommodating groove 124. In this way, an interference fit is formed between the elastic ring 30 and the gear 20, and the mating force between the mating surfaces of the elastic ring 30 and the gear 20 acts as a damping force in the opposite direction of the rotation of the gear, so that when the external force is removed, the damping force can switch the gear 20 to the normal state to support the new bottommost row connecting pipe cap 201 again.

In the embodiment of the present invention, for the convenience of installing the gear 20, the installation portion 12 can be formed by the first installation box 1201 and the second installation box 1202 in a pair, and form the installation groove 121 between the first installation box 1201 and the second installation box 1202, set up the annular storage groove 124 on the outer surface of the rotating shaft 40, when installing the gear 20, assemble the rotating shaft 40 first, the elastic ring 30 and the gear 20 form a damping gear assembly, then insert the rotating shaft hole 122 with the rotating shaft 40 in the damping gear assembly, close the first installation box 1201 and the second installation box 1202 again in a pair, thereby make the gear 20 be located the installation groove 121 and can rotate.

Referring to fig. 7, in another embodiment, the gear 20 is still mounted on the mounting portion 12 through the rotating shaft 40, the mounting portion 12 is further provided with a receiving groove 123, the damping member 30 is a magnet disposed in the receiving groove 123, and the gear 20 is a ferromagnetic member magnetically connected to the magnet. In this way, the magnetic force of the magnet on the gear 20 acts as a damping force in the opposite direction of the rotation of the gear, so that when the gear 20 rotates by one row spacing S to cancel the external force, the damping force can switch the gear 20 to the normal state to support the new bottommost row of the tube connecting covers 201 again, thereby ensuring that the tube connecting covers are discharged one by one.

In the embodiment of the present invention, for the convenience of installing the gear 20 and the damping member 30, the installation portion 12 can be formed by the first installation box 1201 and the second installation box 1202 in a pair, and the installation groove 121 is formed between the first installation box 1201 and the second installation box 1202, the installation portion 12 is further provided with the accommodation groove 123 (specifically, the accommodation groove 123 can be disposed on the second installation box 1202, and also can be disposed on the first installation box 1201, and the accommodation groove 123 can also be disposed coaxially with the rotation shaft hole 122), when installing the gear 20, the damping member 30 is disposed in the accommodation groove 123, the rotation shaft 40 and the gear 20 are assembled to form a gear assembly, then the rotation shaft 40 in the gear assembly is inserted into the rotation shaft hole 122, and then the first installation box 1201 and the second installation box 1202 are closed in a pair, so that the gear 20 is located in the installation groove 121 and can rotate.

As an exemplary embodiment, there are two gears 20, two mounting portions 12 are respectively located at two sides of the pipe connecting cover outlet 111, two gears 20 are rotatably connected to the two mounting portions 12 in a one-to-one correspondence, and each gear 20 is correspondingly connected to the damping member 30. In this way, the two gears support the connection pipe cover 200 together, so that the connection pipe cover 200 can be stably supported below the bottommost connection pipe cover 201, and the connection pipe cover can be prevented from being discharged in a normal state.

As described above, the gear 20 is rotated by applying a downward pushing force on the uppermost row of the multi-row pipe cover 200, and the lowermost row of the multi-row pipe covers 201 is finally placed on the corresponding multi-row pipe. As another embodiment, a driving member such as a motor is connected to the gear 20 for driving the gear 20 to rotate, so that the gear 20 can be driven to rotate by the driving member such as a motor, and the lowermost row of pipe covers 201 can be placed on the corresponding multi-pipe, that is, a downward pushing force is not required to be applied above the uppermost row of pipe covers.

As an exemplary embodiment, the cap magazine 10 has a through hole 101, the through hole 101 penetrates from the top end of the cap magazine 10 to the bottom end of the cap magazine 10, the inside of the through hole 101 forms a storage chamber 11 for accommodating a plurality of rows of the duct caps 200, the top end of the through hole 101 forms a duct cap inlet 112, the duct cap inlet 112 is used for sequentially loading the plurality of rows of the duct caps 200 into the storage chamber 11, and the bottom end of the through hole 101 forms a duct cap outlet 111 for allowing the plurality of rows of the duct caps to fall down one by one onto the duct caps. Therefore, the multi-row connecting pipe covers 200 can be conveniently and sequentially arranged, and the multi-row connecting pipe covers can conveniently fall row by row. In use, when the vial is filled with the required material (e.g. pills), the vial filled with pills is placed under the multi-vial capping mechanism and aligned with the bottom row of the vial caps 201 in the multi-vial capping mechanism, wherein the vial can be an eight-vial, and in actual use, the vial can be set according to actual requirements, such as a six-vial, a ten-vial, etc.

In the above embodiment, in the normal state, as shown in fig. 4a and 4b, the tooth tip of at least one tooth (e.g. tooth 211) of the gear 20 extends to the inner side of the cavity wall of the storage cavity 11 so as to be supported below the bottom row of the connection caps 201, and the bottom row of the connection caps 201 is prevented from falling in the normal state, taking the tooth tip 211 as an example, the tooth tip of the tooth 211 has a distance L from the cavity wall of the storage cavity 11 based on the falling-stopping effect of the bottom row of the connection caps 201, and in order to be supported below the bottom row of the connection caps 201, the side end of each row of the connection caps has a gap M (gap M is not shown) from the cavity wall of the storage cavity 11, where L > M, so that the tooth tip of the tooth can be supported below the bottom row of the connection caps 201.

As an exemplary embodiment, the distance L forms a blocking distance of the gear 20 to the bottom row of the connecting tube caps 201, and the blocking distance is 1mm to 3mm, such as 1mm,1.5mm,2mm, 2.5mm, 3mm, etc., and when the blocking distance is set at the above value, the connecting tube caps can be conveniently dropped to the bottle openings of the connecting tube bottles, and the position deviation caused by the overlong distance without guidance in the middle can be prevented.

As an exemplary embodiment, the gap M is 0.05mm-0.15mm, such as 0.05mm, 0.1mm,0.15mm, etc., and the gap is set to ensure that the multi-row pipe covers fall down row by row, and if the gap is too large or too small, the position is not correct or the pipe covers are stuck.

As an exemplary embodiment, the cover box 10 is connected with a handle 50 for conveniently lifting and placing the multi-connection tube cover placing mechanism, and based on the arrangement of the handle 50, an operator can conveniently take down the whole multi-connection tube cover placing mechanism to sequentially load the multiple rows of the multi-connection tube covers 200 into the storage cavity 11, and after the storage cavity 11 is filled with the multiple rows of the multi-connection tube covers 200, the operator can conveniently install the full-load multi-connection tube cover placing mechanism on the bottle cap pressing device.

The operation process of the multi-connection pipe cover placing mechanism is described in detail below by taking the damping member 30 as a magnet as an example: normally, the side edge of the bottommost row 201 of the multiple rows of the pipe connection covers is located between two adjacent gear teeth 211, 212 of the gear 20 (as shown in fig. 4a and 4b), and the multiple rows of the pipe connection covers are supported by the gear teeth 211 and are kept in the storage cavity 11; when the uppermost row of the pipe connecting covers is pushed downwards or the gear 20 is driven by the driving piece, the gear 20 rotates, the gear teeth 211 and 212 move away from the storage cavity 11, and when the gear 20 rotates by n teeth, the gear teeth are disengaged from the side edge of the lowermost row of the pipe connecting covers 201 in the rows of the pipe connecting covers, so that the lowermost row of the pipe connecting covers falls from the outlet of the pipe connecting covers, and simultaneously the gear 20 is restored to the normal state and is supported below the new lowermost row of the pipe connecting covers; if the gear 20 continues to rotate, the connecting pipe covers fall from the outlet of the connecting pipe cover row by row; if the pushing force or the driving force of the driving member is removed, the gear 20 is switched to the normal state under the magnetic force of the damping member 30, and is supported below the new bottommost row of duct cover, for example, the side edge of the new bottommost row of duct cover 201 is located between two adjacent gear teeth 212, 213 of the gear 20, and the rows of duct covers are supported by the gear teeth 212 and are retained in the storage cavity 11 (see fig. 5a and 5 b). As for the multi-tube capping mechanism in which the damping member 30 is an elastic ring, the operation process is substantially the same as that of the multi-tube capping mechanism in which the damping member is a magnet, and thus, the description thereof will be omitted.

From the foregoing, the utility model discloses a many pipes are put and are covered mechanism can realize the storage of multirow even pipe cap, and the single row even pipe cap is discharged and is reached even bottle upper cover purpose, can not once discharge multirow even pipe cap, and the emission stable performance, and because the tooth pitch P of gear is S with the relation of row interval S for n.1-n.2 XP, every n tooth pitch P of rotation of gear, will discharge one row even pipe cap for it is fast to discharge recovery speed.

According to another aspect of the present invention, there is provided a bottle cap pressing device, comprising the multiple connecting tubes cap placing mechanism 100. Since the multi-connecting-tube cap placing mechanism 100 has the technical effects, the bottle cap pressing device including the multi-connecting-tube cap placing mechanism 100 also has corresponding technical effects, and the details are not repeated herein.

Various configurations, existing or as may come into existence in the future, may be employed for other parts of the closure pressing means. The present invention is not intended to be limited thereto. Accordingly, these components will not be described in detail herein.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "top", "bottom", "upper" and "lower" etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe the spatial relationship of one or more components or features shown in the figures to other components or features. It is to be understood that the spatially relative terms are intended to encompass not only the orientation of the component as depicted in the figures, but also different orientations of the component in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (11)

1. A multi-tube cap-placing mechanism (100), comprising:

a cover magazine (10) having a storage chamber (11) for accommodating a plurality of rows of the tube-connecting covers with a row spacing S between two adjacent rows of the tube-connecting covers, the tube-connecting covers including a plurality of tube covers connected together, the storage chamber having a tube-connecting cover outlet (111) at a bottom thereof, the cover magazine having a mounting portion (12) at the tube-connecting cover outlet;

a gear (20) rotatably connected to the mounting portion, wherein a pitch P of the gear and a row pitch S have a relationship of S ═ n.1-n.2 XP, and n is a positive integer less than 5; under a normal state, the side edge of the bottommost row of the multiple rows of the connecting pipe covers is positioned between two adjacent gear teeth of the gear and supported by the gear; and

a damping member (30) connected to the gear to provide a damping force to the gear opposite to a rotation direction of the gear;

when the gear overcomes the damping force to rotate n gear teeth, the side edge of the bottommost row of the multiple rows of the connecting pipe covers is separated from the gear teeth, and the gear is restored to the normal state.

2. The cover placing mechanism for the multi-connecting pipe as recited in claim 1, wherein the gear is mounted on the mounting portion through a rotating shaft (40), the gear has an axial through hole (201), the gear is sleeved on the rotating shaft through the axial through hole, an annular accommodating groove (124) is formed between a hole wall of the axial through hole and an outer surface of the rotating shaft, the damping member is an elastic ring, and the elastic ring is disposed in the annular accommodating groove.

3. The cover placing mechanism for the multi-connected pipe according to claim 1, wherein the gear is mounted on the mounting portion through a rotating shaft, the mounting portion is further provided with a containing groove (123), the damping member is a magnet disposed in the containing groove, and the gear is a ferromagnetic member magnetically connected with the magnet.

4. The cover placing mechanism for the multiple connecting pipes as claimed in claim 2 or 3, wherein the number of the gears is two, the number of the installation parts is two, the two installation parts are respectively located at two sides of the outlet of the connecting pipe cover, the two gears are rotationally connected to the two installation parts in a one-to-one correspondence manner, and each gear is correspondingly connected with the damping member.

5. The mechanism of claim 4, wherein the gear is connected to a driving member for driving the gear to rotate.

6. The lid placing mechanism according to claim 4, wherein the lid magazine has a through hole (101) penetrating from a top end of the lid magazine to a bottom end of the lid magazine, an inside of the through hole forming the storage chamber, a top end of the through hole forming the lid inlet (112), and a bottom end of the through hole forming the lid outlet.

7. The cover-placing mechanism for multi-connected pipes according to claim 6, wherein in the normal state, the tooth tops of at least one tooth of the gear extend to the inner side of the wall of the storage chamber and have a distance L from the wall of the storage chamber, and a gap M is provided between the side end of each row of the cover-connecting pipe and the wall of the storage chamber, where L > M.

8. The cover placing mechanism for the multi-connecting pipe as recited in claim 7, wherein the distance L forms a blocking distance of the gear wheel to the bottom row of connecting pipe covers, and the blocking distance is 1mm-3 mm.

9. The multiple connecting tube cap placing mechanism according to claim 8, wherein the gap M is 0.05mm-0.15 mm.

10. The multiple-tube capping mechanism according to claim 4, wherein a handle (50) is attached to the cap magazine to facilitate lifting and placing of the multiple-tube capping mechanism.

11. A closure pressing device comprising a multiple tube capping mechanism according to any one of claims 1 to 10.

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