Vacuum breast pump plug connector for cow breeding

Abstract

The invention discloses a vacuum breast pump plug connector for dairy cow breeding, which comprises a main body assembly, the main body assembly comprises a fixed seat, and the front side of the fixed seat is connected with a mounting shell; the plug connecting assembly comprises a plug connecting seat connected in the mounting shell, connecting sinking grooves are formed in the left end and the right end of the plug connecting seat respectively, a supporting plate is fixedly connected to the plug connecting seat at the connecting sinking grooves, a transmission shaft capable of moving up and down is rotationally connected to the supporting plate, and a push-pull block capable of moving up and down is connected to the lower portion of the transmission shaft; the transmission shafts are rotationally connected to the push-pull blocks, the ends, away from the corresponding transmission shafts, of the push-pull blocks in the left-right direction are slidably connected with lower clamping blocks capable of sliding left and right, and the lower clamping blocks are slidably connected to the plug connecting base in the left-right direction. The two lower clamping blocks respectively move towards the direction of the plug so as to clamp the plug; according to the invention, the connection reliability of the plug and the plug connecting seat can be improved, and poor contact is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electricity supply equipment for dairy cow breeding, in particular to a plug connector for a vacuum breast pump for dairy cow breeding. Background Art

[0002] In the prior art, the plug connector of the vacuum breast pump for dairy cow breeding includes a fixed seat, and the front end of the fixed seat is provided with two rear plug-in sinks spaced in the left and right directions, the front end of the fixed seat is fixedly connected with a mounting shell, and the rear end of the mounting shell is provided with two mounting sinks spaced in the left and right directions, the mounting shell is connected with a plug connection seat through the mounting sinks, and the rear end of the plug connection seat can be forcefully inserted into the corresponding rear plug-in sink, and the plug connection seat is provided with an arc-shaped slot, and the plug connection seat at the slot position is elastic. When in use, the plug is connected to the plug connection seat from bottom to top through the slot, and the slot is elastically deformed under the action of the plug. When the milking is finished, the staff pulls the plug downward from the plug connection seat. This structure relies on the elasticity of the plug connection seat at the slot to make the plug connected to the plug connection seat. After a long time of use, the deformation of the plug connection seat is not easy to recover, and the plug is easy to loosen after being inserted, resulting in poor contact when power is turned on. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above and / or existing problems in connecting a plug and a plug connector, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that in the prior art, the plug is easily loosened when connected to the plug connector, thereby affecting the power-on effect. The present invention can improve the reliability of the connection between the plug and the plug connector, improve the power-on effect, and reduce the occurrence of poor contact.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a plug connector for a vacuum breast pump for dairy cow breeding, comprising: The main body assembly includes a fixing seat, a front end of the fixing seat is provided with two rear plug-in sink grooves spaced apart in the left-right direction, a front side of the fixing seat is connected to a mounting shell, and a rear end of the mounting shell is provided with two mounting sink grooves spaced apart in the left-right direction; The plug connection assembly comprises a plug connection seat connected to the installation shell through an installation groove, and the plug connection seat has two front plug-in grooves corresponding to the rear plug-in grooves at one end facing the rear, and the front plug-in grooves and the rear plug-in grooves form a socket for plugging the plug, and the plug connection seat on the left and right sides of the front plug-in grooves is provided with connecting grooves, and a support plate is fixedly connected to the plug connection seat at the connecting groove, and a transmission shaft that can move up and down is rotatably connected to the support plate, and a sliding groove is provided on the plug connection seat between the front plug-in groove and the connecting groove, and a push-pull block that can move up and down is connected to the lower part of the transmission shaft, and the transmission shaft is rotatably connected to the push-pull block, and the push-pull block is slidably connected to a lower clamping block that can slide left and right at one end away from the corresponding transmission shaft in the left and right directions, and the lower clamping block can be slidably connected to the plug connection seat through the sliding groove, and when the plug is pushed upward into the socket, the two lower clamping blocks move respectively in the direction of the plug, and the end of the lower clamping block away from the push-pull block in the left and right directions can fit on the outer edge of the plug.

[0007] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, the push-pull block has a first inclined surface at one end away from the corresponding transmission shaft in the left-right direction, a first slide rail is fixed on the push-pull block at the first inclined surface, a first slide groove corresponding to the first slide rail is opened on the lower clamping block, the lower clamping block is slidably connected to the first slide rail through the first slide groove, a vertically arranged first sliding groove is opened on the plug connecting seat at one end of the sliding groove away from the socket in the left-right direction, and the push-pull block can slide up and down along the first sliding groove.

[0008] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, wherein: a first return spring is mounted on the transmission shaft, a transmission gear is connected to the transmission shaft on the lower side of the support plate, the transmission gear is rotatably connected to the support plate, the transmission shaft can slide along the transmission gear and can drive the transmission gear to rotate, the first return spring is connected between the transmission gear and the limit step at the lower part of the transmission shaft, a transmission rack that can slide left and right and cooperate with the transmission gear is connected to the plug connecting seat above the push-pull block, the transmission rack can fit tightly on the outer edge of the plug on one side relative to the socket in the left and right directions, a spiral groove is spirally arranged on the outer periphery of the transmission shaft, and a rotating transmission column that is just inserted into the spiral groove is fixedly connected to the support plate.

[0009] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, wherein: a second sliding groove horizontally arranged in the left and right directions is opened on the plug connecting seat at the front end of the transmission rack, a sliding part that can slide left and right along the second sliding groove is fixed to the front end of the transmission rack, a second sliding groove is opened on the plug connecting seat at the front end of the second sliding groove, a sliding block that can slide back and forth along the second sliding groove is slidably connected to the front end of the sliding part, and a third sliding groove is opened at one end of the sliding block corresponding to the corresponding jack in the left and right directions, and the sliding block is slidably connected to a limit block for limiting the movement of the rack through the third sliding groove, and a second return spring is connected between the limit block and the plug connecting seat on the side away from the front plug-in groove in the left and right directions, and when the limit block is in the second sliding groove, the second return spring is in a compressed state, and when the rear side of the limit block leaves the second sliding groove, the limit block is pushed out of the second sliding groove under the action of the second return spring, and the rear side of the limit block is attached to the front side of the plug connecting seat.

[0010] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, it also includes a reset component, which includes two movable plates connected to the mounting shell and can move in the front and rear directions, and the rear end of the movable plate has two card-connecting grooves corresponding to the second slide groove, and the card-connecting groove is provided on the movable plate at one end of the movable plate relative to the center of the movable plate in the left and right directions. The limit card block has a second inclined surface on the front side of the end in the left and right directions relative to the direction of the plug hole. The movable plate can be attached to the second inclined surface through the transmission groove, and the movable plate moves toward the direction of the plug connection seat. That is, when moving backward, the movable plate can push the limit card block into the plug-in groove through the second inclined surface.

[0011] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, the reset assembly also includes two transmission screws rotatably connected to the mounting shell, the movable plate is threadedly connected to the transmission screws, and the front end of the plug connector is fixed with two groups of guide rods corresponding to the movable plates one by one, and the movable plate is slidably connected to the guide rods of the corresponding groups.

[0012] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, the front end of the transmission screw is outside the mounting shell, and a plurality of transmission handles are arranged on the periphery of the transmission screw outside the mounting shell.

[0013] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, wherein: a non-circular plug hole is opened at the downward end of the transmission shaft, a circular limit sink groove is opened on the transmission shaft on the upper side of the plug hole, the plug includes a conductive transmission part that can abut against the lower side of the mounting shell, a central conductive rod is fixed at the center of the upper end of the conductive transmission part, and the central conductive rod can be just inserted into the corresponding plug hole, and the upper ends of the left and right sides of the central conductive rod are fixed with intermediate conductive parts, and the upper end of the intermediate conductive part is fixed There is an anti-falling conductive part that can just pass through the plug-in hole and extend into the limiting groove. When the upper side of the anti-falling conductive part contacts the transmission shaft on the upper side of the limiting groove, the lower side of the anti-falling conductive part is flush with the lower side of the limiting groove, and the lower side of the anti-falling conductive part can fit on the transmission shaft on the upper side of the plug-in hole. When the limiting block is pushed out by the second reset spring and the rear side of the limiting block fits on the front side of the plug connector, the anti-falling conductive part and the plug-in hole are staggered, and the lower side of the anti-falling conductive part fits on the transmission shaft on the lower side of the limiting groove.

[0014] As a preferred solution of the plug connector of the vacuum breast pump for dairy cow breeding in the present invention, when the rear side of the limiting clamping block is attached to the front side of the plug connecting seat, the front side of the clamping sink is in front of the sliding block.

[0015] The beneficial effects of the present invention are as follows: the plug is just inserted into the plug connection seat through the plug hole, and the central conductive rod is in contact with the transmission shaft on the upper side of the limiting groove. As the plug is pushed upward, the central conductive rod pushes the transmission shaft to move upward and rotates under the action of the rotating transmission column. The downward end of the transmission shaft rotates along the outer edge of the anti-falling conductive part through the limiting groove, and the transmission shaft drives the transmission gear to rotate, and the transmission gear drives the transmission rack to move. The two transmission racks on the left and right sides of the jack move toward each other at the same time, and the transmission shaft drives the push-pull block to move upward, and the push-pull block drives the lower clamping block when it moves upward. When the two lower clamping blocks on the left and right sides of the jack move toward each other at the same time, the transmission rack drives the sliding part to move, and the sliding part pushes the sliding block to slide forward along the second slide groove. Before the limit block leaves the second slide groove, the second return spring is pressed by the limit block in a compressed state. When the opposite sides of the two corresponding transmission racks are in contact with the outer edge of the central conductive rod and the opposite sides of the two corresponding lower clamping blocks are in contact with the outer edge of the central conductive rod, the rear side of the limit block just leaves the second slide groove, and the rear side of the limit block fits At the front side of the plug connector, the sliding part cannot continue to move in the left and right directions under the action of the limit block, and the position of the transmission shaft in the height direction is fixed. At this time, the anti-falling conductive part and the plug hole on the lower side of the limiting sink are staggered, that is, the anti-falling conductive part is not aligned with the plug hole, and the lower side of the anti-falling conductive part contacts the transmission shaft on the upper side of the plug hole. As long as the transmission screw rod is not rotated (the transmission screw rod is insulated), the plug will not be separated from the plug connector, and the plug and the plug connector are always tightly connected; when breastfeeding is not needed, the power supply needs to be disconnected. When the movable plate is in contact with the second inclined surface through the transmission groove, the transmission screw rod continues to be rotated, and the movable plate continues to move downward. The movable plate pushes the limit block into the plug-in groove through the second inclined surface, and the transmission shaft moves downward under the action of the first return spring. The transmission shaft rotates in the opposite direction, and the lower clamping block and the transmission rack move in the direction away from the center conductive part. The transmission shaft moves downward against the plug, and the first return spring is reset. The anti-fall conductive part passes through the plug hole and falls, and the plug is easy to operate when it is separated from the plug connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0017] Figure 1 It is the front view of the present invention.

[0018] Figure 2 for Figure 1 The view from AA in the middle.

[0019] Figure 3 for Figure 2 A partial enlarged view of point B in the middle.

[0020] Figure 4 This is a partial internal structure diagram when the movable plate in the present invention moves backward to make the front side of the transmission sink groove fit on the second inclined surface.

[0021] Figure 5 This is a three-dimensional structural diagram when the installation shell in the present invention is set to a transparent state.

[0022] Figure 6 for Figure 5 A partial enlarged view of point C in the middle.

[0023] Figure 7 This is a three-dimensional structural diagram when a plug is inserted into a plug connector and the plug connector is set to a transparent state.

[0024] Figure 8 for Figure 7 A partial enlarged view of point D in the middle.

[0025] Fig. 9 for Figure 7 A partial enlarged view of point E in the middle.

[0026] Fig.10 It is a partial internal structure diagram when the transmission shaft is connected in the corresponding installation groove.

[0027] Fig.11 It is a three-dimensional structural diagram of the plug in the present invention.

[0028] Fig.12 It is a three-dimensional structural diagram of the present invention.

[0029] Fig.13 It is a partial three-dimensional structural diagram of the present invention when the transmission shaft is facing downward.

[0030] Among them, 100 main body component, 101 installation shell, 101a installation sink, 102 fixed seat, 200 plug connection component, 201 sliding block, 201a third sliding sink, 202 plug connection seat, 202a rear plug sink, 202b second slide, 202c second sliding sink, 202d sliding groove, 202e first sliding sink, 202f connection sink, 203 transmission rack, 203a sliding part, 204 limit card block, 204a second inclined surface, 205 second return spring, 206 positioning plate, 207 push-pull block, 208 lower clamping block, 209 transmission shaft, 20 9a plug-in hole, 209b limiting groove, 209c limiting step, 210 transmission gear, 211 support plate, 212 first return spring, 213 connecting sleeve, 213a connecting part, 214 rotating transmission column, 215 limiting plate, 216 second fixed plate, 217 first fixed plate, 300 reset assembly, 301 transmission screw, 301a transmission handle, 302 moving plate, 302a clamping groove, 302b transmission groove, 302c positioning step, 303 guide rod, 400 plug, 401 conductive transmission part, 402 center conductive rod, 403 middle conductive part, 404 anti-fall conductive part. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1 Reference Figure 1 , Figure 2 and Figure 7 to Figure 9 , which is the first embodiment of the present invention, and this embodiment provides a plug connector for a vacuum breast pump for dairy cow farming, which can improve the reliability of the connection after the plug 400 is inserted into the plug connector 202.

[0035] A vacuum breast pump plug 400 connector for dairy cow breeding includes a main body component 100, a fixing seat 102, a front end of the fixing seat 102 is provided with two rear plug-in recesses 202a spaced apart in the left-right direction, a front side of the fixing seat 102 is connected to a mounting shell 101 made of insulating material, a rear end of the mounting shell 101 is provided with two mounting recesses 101a spaced apart in the left-right direction; a plug connection component 200 for connecting the plug 400 is installed in the mounting shell 101.

[0036] Specifically, the plug connection assembly 200 includes a plug connection seat 202 for conducting electricity, which is connected to the installation housing 101 through the installation groove 101a. The connection between the upper end of the plug connection seat 202 and the powered device is a prior art, and no other powered devices are drawn in this application; the rear end of the plug connection seat 202 is provided with two front plugging grooves corresponding to the rear plugging grooves 202a, and the front plugging grooves and the rear plugging grooves 202a form a socket for plugging the plug 400. The plug connection seat 202 on the left and right sides of the front plugging grooves is provided with connection grooves 202f, and the plug connection seat 202 at the connection grooves 202f is fixedly connected to a support plate 211, and a transmission shaft 209 that can move up and down is rotatably connected to the support plate 211. In the left and right directions, a sliding groove 202d is provided on the plug connection seat 202 between the front plug-in groove and the connection groove 202f. A push-pull block 207 that can move up and down is connected to the lower part of the transmission shaft 209. The transmission shaft 209 is rotatably connected to the push-pull block 207. The push-pull block 207 is slidably connected to a lower clamping block 208 that can slide left and right at one end away from the corresponding transmission shaft 209 in the left and right directions. The lower clamping block 208 can be slidably connected to the plug connection seat 202 through the sliding groove 202d. When the plug 400 is pushed upward into the socket, the two lower clamping blocks 208 move respectively in the direction of the plug 400, and one end of the lower clamping block 208 away from the push-pull block 207 in the left and right directions can fit on the outer edge of the plug 400.

[0037] Specifically, the push-pull block 207 has a first inclined surface at one end away from the corresponding transmission shaft 209 in the left-right direction, a first slide rail is fixed on the push-pull block 207 at the first inclined surface, a first slide groove corresponding to the first slide rail is opened on the lower clamping block 208, and the lower clamping block 208 is slidably connected to the first slide rail through the first slide groove, and a vertically arranged first sliding groove 202e is opened on the plug connection seat 202 away from one end of the jack in the left-right direction. The push-pull block 207 can slide up and down along the first sliding groove 202e, and a first return spring 212 is installed on the transmission shaft 209. A transmission gear 210 is connected to the transmission shaft 209 on the lower side of the support plate 211, and the transmission gear 210 is rotatably connected to the support plate 211. The transmission shaft 209 can slide along the transmission gear 210 and can drive the transmission gear 210 to rotate. The transmission shaft 209 is also equipped with a connecting sleeve 2 13. The transmission shaft 209 is rotatably connected to the connecting sleeve 213, and the lower part of the transmission gear 210 is rotatably connected to the connecting sleeve 213. The outer edge of the transmission gear 210 is provided with a connecting portion 213a fixedly connected to the support plate 211, which limits the up and down movement of the transmission gear 210 and improves the reliability of the rotation of the transmission gear 210. The first return spring 212 is connected between the transmission gear 210 and the circular limit step 209c at the lower part of the transmission shaft 209. The plug connection seat 202 above the push-pull block 207 is connected with a transmission rack 203 that can slide left and right and cooperate with the transmission gear 210. The side of the transmission rack 203 relative to the jack in the left and right directions can be tightly fitted on the outer edge of the plug 400. A spiral groove is spirally arranged on the outer periphery of the transmission shaft 209, and a rotating transmission column 214 that is just inserted into the spiral groove is fixedly connected to the support plate 211.

[0038] In the present application, the transmission rack 203 and the lower clamping block 208 are both made of conductive materials; the structure of the connection between the push-pull block 207 and the transmission shaft 209 is specifically that a limited step 209c is fixed on the lower periphery of the transmission shaft 209, and a first fixed plate 217 is fixed on the side of the push-pull block 207 away from the lower clamping block 208 in the left and right directions. The lower part of the transmission shaft 209 just passes through the through hole in the center of the first fixed plate 217, and the lower side of the limited step 209c abuts against the upper side of the first fixed plate 217. A second fixed plate 216 fixedly connected to the first fixed plate 217 is mounted on the transmission shaft 209 on the upper side of the limited step 209c. The center of the plug 400 is aligned with the socket, and the center of the plug 400 is inserted into the plug connector 202 from bottom to top through the socket, and the two parts on the left and right sides of the plug 400 are respectively inserted The plug 400 is inserted into the connecting grooves 202f on the left and right sides of the socket, the upper end of the plug 400 is in contact with the lower end of the transmission shaft 209, the plug 400 pushes the transmission shaft 209 to move upward, the first return spring 212 is compressed, and the transmission shaft 209 rotates under the action of the rotating transmission column 214. The transmission shaft 209 slides along the central sliding hole of the transmission gear 210. At the same time, the transmission shaft 209 drives the transmission gear 210 to rotate, and the transmission shaft 209 pushes the push-pull block 207 to move upward, and the transmission gear 210 drives the transmission rack 203 to move, and the transmission rack 203 moves toward the direction of the socket. The push-pull block 207 pushes the lower clamping block 208 to move toward the direction of the socket. When the lower clamping block 208 and the transmission gear 210 are tightly fitted on the outer edge of the center of the plug 400, the plug 400 can no longer continue to move upward.

[0039] Specifically, the plug connection seat 202 at the front end of the transmission rack 203 is provided with a second sliding groove 202c horizontally arranged in the left and right direction, and the front end of the transmission rack 203 is fixed with a sliding portion 203a that can slide left and right along the second sliding groove 202c, and the plug connection seat 202 at the front end of the second sliding groove 202c is provided with a second sliding groove 202b, and the front end of the sliding portion 203a is slidably connected with a sliding block 201 that can slide forward and backward along the second sliding groove 202b, and a guide rail is fixed at the front end of the sliding portion 203a, and a guide groove corresponding to the guide rail is provided at the rear end of the sliding block 201, and the sliding block 201 is slidably connected to the guide rail through the guide groove, and the sliding block 20 A third sliding groove 201a is provided at one end corresponding to the plug hole in the left-right direction. The sliding block 201 is slidably connected to a limiting block 204 for limiting the movement of the rack through the third sliding groove 201a. A second return spring 205 is connected between the limiting block 204 and the plug connection seat 202 on the side away from the front plug-in groove in the left-right direction. When the limiting block 204 is in the second sliding groove 202b, the second return spring 205 is in a compressed state. When the rear side of the limiting block 204 leaves the second sliding groove 202b, the limiting block 204 is pushed out of the second sliding groove 202b under the action of the second return spring 205, and the rear side of the limiting block 204 is attached to the front side of the plug connection seat 202.

[0040] When the transmission rack 203 moves horizontally toward the direction of the jack, the transmission rack 203 drives the sliding part 203a to move, and the sliding part 203a pushes the sliding block 201. When the rear side of the limiting card block 204 is flush with the front side of the plug connecting seat 202, that is, the plugging groove exposes the plug connecting seat 202, the limiting card block 204 is pushed out under the action of the second return spring 205, and the rear side of the limiting card block 204 is attached to the front side of the plug connecting seat 202. The sliding block 201 cannot move downward under the action of the limiting card block 204, and the sliding part 203a cannot continue to move in the horizontal direction under the action of the sliding block 201. The position of the transmission rack 203 is fixed, and the transmission shaft 209 cannot continue to rotate. That is, at this time, the position of the lower clamping block 208 is also fixed, further improving the reliability of the connection between the plug 400 and the plug connecting seat 202, and the plug 400 and the plug connecting seat 202 always maintain close contact.

[0041] Example 2 Reference Figure 3 to Figure 6 , which is the second embodiment of the present invention. This embodiment is based on embodiment 1 and provides a plug connector for a vacuum breast pump for dairy cow breeding, which can further improve the reliability of the connection between the plug 400 and the plug connector 202 after the plug 400 is inserted into the plug connector 202.

[0042] Specifically, a non-circular plug hole 209a is formed at the downward end of the transmission shaft 209, and a circular limiting recess 209b is formed on the transmission shaft 209 on the upper side of the plug hole 209a. The plug 400 includes a conductive transmission part 401 that can abut against the lower side of the mounting housing 101, and a central conductive rod 402 is fixed at the center of the upper end of the conductive transmission part 401. The central conductive rod 402 can just be inserted into the corresponding plug hole 209a, and an intermediate conductive part 403 is fixed at the upper end of the left and right sides of the central conductive rod 402. An anti-falling conductive part 404 that can just pass through the plug hole 209a and extend into the limiting recess 209b is fixed at the upper end of the intermediate conductive part 403, and the upper side of the anti-falling conductive part 404 abuts against the limiting recess 209b. 09b, the lower side of the anti-falling conductive part 404 is flush with the lower side of the limiting groove 209b, and the lower side of the anti-falling conductive part 404 can fit on the transmission shaft 209 on the upper side of the plug hole 209a. When the limiting block 204 is pushed out by the second reset spring 205 and the rear side of the limiting block 204 fits on the front side of the plug connector 202, the anti-falling conductive part 404 and the plug hole 209a are staggered, and the lower side of the anti-falling conductive part 404 fits on the transmission shaft 209 on the lower side of the limiting groove 209b. At the same time, the front side of the engaging groove 302a is in front of the sliding block 201, and the front side of the second inclined surface 204a fits on the movable plate 302 on the front side of the transmission groove 302b.

[0043] The plug 400 is just inserted into the plug connector 202 through the plug hole 209a, and the central conductive rod 402 abuts against the transmission shaft 209 on the upper side of the limiting groove 209b. As the plug 400 is pushed upward, the central conductive rod 402 pushes the transmission shaft 209 to move upward and rotate under the action of the rotating transmission column 214. The downward end of the transmission shaft 209 rotates along the outer edge of the anti-fall conductive part 404 through the limiting groove 209b, and the transmission shaft 209 drives the transmission gear 210 to rotate, and the transmission gear 210 drives the transmission rack 20 3 moves, the two transmission racks 203 on the left and right sides of the jack move toward each other at the same time, and the transmission shaft 209 drives the push-pull block 207 to move upward. When the push-pull block 207 moves upward, it drives the lower clamping block 208 to slide in the direction of the central conductive rod 402, that is, the two lower clamping blocks 208 on the left and right sides of the jack move toward each other at the same time, and the transmission rack 203 drives the sliding part 203a to move, and the sliding part 203a pushes the sliding block 201 and slides forward along the second sliding groove 202b. Before the limiting block 204 leaves the second sliding groove 202b, the first The second return spring 205 is pressed by the limit block 204 and is in a compressed state. When the two corresponding transmission racks 203 are arranged opposite to each other on one side and abut against the outer edge of the central conductive rod 402, and the two corresponding lower clamping blocks 208 are arranged opposite to each other on one side and abut against the outer edge of the central conductive rod 402, the rear side of the limit block 204 just leaves the second slide groove 202b, and the rear side of the limit block 204 is attached to the front side of the plug connector 202. At this time, the sliding part 203a cannot continue to move in the left and right directions under the action of the limit block 204, and the transmission The position of the shaft 209 in the height direction is fixed. At this time, the anti-falling conductive part 404 and the plug-in hole 209a on the lower side of the limiting groove 209b are staggered, that is, the anti-falling conductive part 404 is not aligned with the plug-in hole 209a. The lower side of the anti-falling conductive part 404 is in contact with the transmission shaft 209 on the upper side of the plug-in hole 209a. The two anti-falling conductive parts 404 on the plug 400 are hung on the transmission shaft 209 in the plug connecting seat 202, further improving the reliability of the connection between the plug 400 and the plug 400 connecting part 213a.

[0044] Example 3 Reference Figure 10 to Figure 13 This is the second embodiment of the present invention, which is based on Embodiment 2. This embodiment provides a vacuum breast pump plug 400 connector for dairy cow farming. This embodiment can further facilitate the operation of the plug 400 being separated from the plug connector 202.

[0045] Specifically, it also includes a reset assembly 300, which includes two movable plates 302 (the movable plates 302 are made of insulating material) connected to the mounting shell 101 and capable of moving in the front-to-back direction, and two transmission screws 301 rotatably connected to the mounting shell 101, the front ends of the transmission screws 301 are outside the mounting shell 101, and a plurality of transmission handles 301a are arranged on the periphery of the transmission screws 301 outside the mounting shell 101, and the rear end of the movable plate 302 is provided with two card-connecting sink grooves 302a corresponding to the second slide groove 202b one by one, and the card-connecting sink groove 302a is provided on the movable plate 302 at one end of the center of the movable plate 302 in the left-right direction. The transmission groove 302b, the limiting block 204 has a second inclined surface 204a on the side facing forward at one end relative to the direction of the plug hole in the left and right direction, and the movable plate 302 can be fitted on the second inclined surface 204a through the transmission groove 302b. The movable plate 302 moves in the direction of the plug connection seat 202, that is, when moving backward, the movable plate 302 can push the limiting block 204 into the plug-in groove through the second inclined surface 204a, and the movable plate 302 is threadedly connected to the transmission screw rod 301. Two groups of guide rods 303 corresponding to the movable plate 302 are fixed at the front end of the plug connection seat 202, and the movable plate 302 is slidably connected to the guide rods 303 of the corresponding groups; a positioning plate 206 for positioning the movable plate 302 is also connected to the front of the plug connection seat 202, and positioning steps 302c are respectively fixed on the left and right sides of the rear end of the movable plate 302. In the initial state, the front side of the positioning step 302c is fitted to the rear side of the positioning plate 206.

[0046] When the sliding block 201 moves forward to make the limiting block 204 leave the second sliding groove 202b, the limiting block 204 is pushed out to move in the direction away from the third sliding groove 201a under the action of the second return spring 205. When the front side of the second inclined surface 204a is in contact with the movable plate 302 on the front side of the transmission groove 302b, the sliding block 201 cannot move forward any further. The upper end of the transmission shaft 209 is connected with a limiting plate 215 which limits the transmission shaft 209 from moving downward under its own weight. In the initial state, the lower side of the limiting plate 215 abuts against the upper side of the support plate 211. When the milking is finished and the plug 400 at the end of the breast pump needs to be powered off, it is only necessary to rotate the transmission screw 301 to move the movable plate 302 backward. Under the action of the movable plate 302 that can only move in the front and rear directions, the movable plate 302 pushes the limit block 204 to move in the left and right directions, and the limit block 204 is gradually pushed into the third sliding groove 201a. When the limit block 204 is completely pushed into the third sliding groove 201a, the transmission shaft 209 moves downward and rotates in the opposite direction under the action of the first reset spring 212, and the transmission rack 203 and the lower clamping block 208 leave the plug 400. When the transmission shaft 209 is reset, that is, the lower side of the limit plate 215 is attached to the upper side of the support plate 211, the anti-fall conductive part 404 is aligned with the plug hole 209a, and the plug 400 slides out of the plug connector 202, thereby realizing the separation of the plug 400 and the plug connector 202, which is easy to operate.

[0047] As long as the transmission screw 301 is not rotated (the transmission screw 301 is insulated), the plug 400 will not be separated from the plug connector 202, and the plug 400 and the plug connector 202 are always tightly connected; when breastfeeding is not needed, the power supply needs to be disconnected, and the transmission handle 301a is rotated to rotate the transmission screw 301 to move the movable plate 302 backward. When the movable plate 302 is attached to the second inclined surface 204a through the transmission groove 302b, the transmission screw 301 is continued to be rotated, and the movable plate 302 continues to move downward. The movable plate 302 pushes the limit block 204 into the plug-in groove through the second inclined surface 204a, and the transmission shaft 209 The first reset spring 212 moves downward, the transmission shaft 209 rotates in the opposite direction, the lower clamping block 208 and the transmission rack 203 move in the direction away from the central conductive part, the transmission shaft 209 moves downward against the plug 400, the first reset spring 212 resets, the anti-fall conductive part 404 falls through the plug hole 209a, and the plug 400 is detached from the plug connector 202 for easy operation; then the transmission screw 301 is rotated in the opposite direction, and when the positioning step 302c moves forward and hits the front side of the positioning plate 206 and cannot move forward, the transmission screw 301 is stopped to reset the movable plate 302, so as to facilitate the next plug-in use of the plug 400.

[0048] The directions in this application are based on the main view, the front-to-back direction is the direction perpendicular to the paper surface, and the left-to-right direction is the horizontal direction perpendicular to the front-to-back direction.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A plug connector for a vacuum breast pump for dairy cow breeding, characterized in that: These include, The main body component (100) comprises a fixing seat (102), wherein the fixing seat (102) has two rear plug-in recesses (202a) arranged at intervals in the left-right direction at one end facing forward, and the fixing seat (102) is connected to a mounting shell (101) at the front side, and the mounting shell (101) has two mounting recesses (101a) arranged at intervals in the left-right direction at one end facing backward; The plug connection assembly (200) comprises a plug connection seat (202) connected to the installation shell (101) via an installation groove (101a); the rear end of the plug connection seat (202) is provided with two front plugging grooves corresponding to the rear plugging grooves (202a); the front plugging grooves and the rear plugging grooves (202a) form a plug hole for plugging a plug (400); the plug connection seat (202) on the left and right sides of the front plugging grooves is provided with connection grooves (202f); the plug connection seat (202) at the connection grooves (202f) is fixedly connected with a support plate (211); the support plate (211) is rotatably connected with a transmission shaft (209) that can move up and down; the plug connection between the front plugging grooves and the connection grooves (202f) is The receiving seat (202) is provided with a sliding groove (202d), and the lower part of the transmission shaft (209) is connected with a push-pull block (207) that can move up and down, and the transmission shaft (209) is rotatably connected to the push-pull block (207), and one end of the push-pull block (207) away from the corresponding transmission shaft (209) in the left and right directions is slidably connected with a lower clamping block (208) that can slide left and right, and the lower clamping block (208) can just be slidably connected to the plug connection seat (202) through the sliding groove (202d), and when the plug (400) is pushed upward into the jack, the two lower clamping blocks (208) respectively move in the direction where the plug (400) is located, and one end of the lower clamping block (208) away from the push-pull block (207) in the left and right directions can fit on the outer edge of the plug (400).

2. The plug connector for a vacuum breast pump for dairy cow breeding according to claim 1, characterized in that: The push-pull block (207) has a first inclined surface at one end away from the corresponding transmission shaft (209) in the left-right direction, a first slide rail is fixed on the push-pull block (207) at the first inclined surface, a first slide groove corresponding to the first slide rail is opened on the lower clamping block (208), the lower clamping block (208) is slidably connected to the first slide rail via the first slide groove, and a vertically arranged first sliding groove (202e) is opened on the plug connection seat (202) at one end away from the socket in the left-right direction of the sliding groove (202d), and the push-pull block (207) can slide up and down along the first sliding groove (202e).

3. The plug connector for a vacuum breast pump for dairy cow breeding according to claim 1, characterized in that: The transmission shaft (209) is sleeved with a first return spring (212); a transmission gear (210) is connected to the transmission shaft (209) at the lower side of the support plate (211); the transmission gear (210) is rotatably connected to the support plate (211); the transmission shaft (209) can slide along the transmission gear (210) and can drive the transmission gear (210) to rotate; the first return spring (212) is connected to the transmission gear (210) and the lower limit of the transmission shaft (209). Between the steps (209c), a transmission rack (203) that can slide left and right and cooperate with the transmission gear (210) is connected to the plug connection seat (202) above the push-pull block (207), and the transmission rack (203) can be tightly fitted on the outer edge of the plug (400) on the side relative to the insertion hole in the left and right directions. A spiral groove is spirally arranged on the outer periphery of the transmission shaft (209), and a rotating transmission column (214) that is just inserted into the spiral groove is fixedly connected to the support plate (211).

4. The plug connector for a vacuum breast pump for dairy cow breeding according to claim 3, characterized in that: The plug connection seat (202) at the front end of the transmission rack (203) is provided with a second sliding groove (202c) horizontally arranged in the left-right direction; the front end of the transmission rack (203) is fixed with a sliding part (203a) capable of sliding left and right along the second sliding groove (202c); the plug connection seat (202) at the front end of the second sliding groove (202c) is provided with a second sliding groove (202b); the front end of the sliding part (203a) is slidably connected with a sliding block (201) capable of sliding forward and backward along the second sliding groove (202b); the sliding block (201) is provided with a third sliding groove (201a) at one end corresponding to the plug hole in the left-right direction; The movable block (201) is slidably connected to a limit block (204) for limiting the movement of the rack through the third sliding groove (201a); the limit block (204) is connected to a second return spring (205) between the side away from the front plug-in groove and the plug connection seat (202) in the left-right direction; when the limit block (204) is in the second slide groove (202b), the second return spring (205) is in a compressed state; when the rear side of the limit block (204) leaves the second slide groove (202b), the limit block (204) is pushed out of the second slide groove (202b) under the action of the second return spring (205), and the rear side of the limit block (204) is attached to the front side of the plug connection seat (202).

5. The plug connector for a vacuum breast pump for dairy cow breeding according to claim 4, characterized in that: The reset assembly (300) further comprises two movable plates (302) connected to the mounting housing (101) and movable in the front-rear direction, the movable plate (302) has two engaging grooves (302a) corresponding to the second slide groove (202b) at one end facing the rear, and a transmission groove (302b) is formed on the movable plate (302) at one end of the engaging groove (302a) relative to the center of the movable plate (302) in the left-right direction. The limiting card block (204) has a second inclined surface (204a) on the side facing forward at one end in the left-right direction relative to the direction where the plug hole is located. The movable plate (302) can be attached to the second inclined surface (204a) via the transmission groove (302b). When the movable plate (302) moves in the direction where the plug connection seat (202) is located, that is, moves backward, the movable plate (302) can push the limiting card block (204) into the plugging groove via the second inclined surface (204a).

6. The plug connector for a vacuum breast pump for dairy cow breeding according to claim 5, characterized in that: The reset assembly (300) further comprises two transmission screws (301) rotatably connected to the mounting housing (101); the movable plate (302) is threadedly connected to the transmission screws (301); two groups of guide rods (303) corresponding to the movable plates (302) are fixed to the front end of the plug connection seat (202); the movable plates (302) are slidably connected to the guide rods (303) of the corresponding groups.

7. The plug connector for a vacuum breast pump for dairy cow breeding according to claim 6, characterized in that: The front end of the transmission screw rod (301) is outside the mounting housing (101), and a plurality of transmission handles (301a) are arranged on the outer periphery of the transmission screw rod (301) outside the mounting housing (101).

8. The plug connector of a vacuum breast pump for dairy cow breeding according to any one of claims 1 to 5, characterized in that: A non-circular plug hole (209a) is formed at one end of the transmission shaft (209) facing downward, and a circular limit sink groove (209b) is formed on the transmission shaft (209) above the plug hole (209a). The plug (400) comprises a conductive transmission part (401) capable of contacting the lower side of the mounting shell (101), a central conductive rod (402) is fixed at the center of the upper end of the conductive transmission part (401), and the central conductive rod (402) can be just inserted into the corresponding plug hole (209a), and intermediate conductive parts (403) are fixed at the upper ends of the left and right sides of the central conductive rod (402), and the upper end of the intermediate conductive part (403) is fixed with a protective cover capable of just passing through the plug hole (209a) and extending into the limit sink groove (209b). The anti-fall conductive part (404) is configured to prevent the conductive part from falling, and when the upper side of the anti-fall conductive part (404) contacts the transmission shaft (209) on the upper side of the limiting groove (209b), the lower side of the anti-fall conductive part (404) is flush with the lower side of the limiting groove (209b), and the lower side of the anti-fall conductive part (404) can fit on the transmission shaft (209) on the upper side of the plug hole (209a). When the limiting block (204) is pushed out by the second return spring (205), and the rear side of the limiting block (204) fits on the front side of the plug connector (202), the anti-fall conductive part (404) and the plug hole (209a) are staggered, and the lower side of the anti-fall conductive part (404) fits on the transmission shaft (209) on the lower side of the limiting groove (209b).

9. The plug connector of a vacuum breast pump for dairy cow breeding according to any one of claims 5 to 7, characterized in that: When the rear side of the limit block (204) is attached to the front side of the plug connection seat (202), the front side of the engaging groove (302a) is in front of the sliding block (201), and the front side of the second inclined surface (204a) is attached to the movable plate (302) on the front side of the transmission groove (302b).

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