A press pump for preventing erroneous opening

Abstract

The utility model relates to press pump technical field, especially a press pump of preventing mistaken opening. The press pump includes the body, installs the lock cover on the body, the lock cover is screwed with the main column in, the top of main column rotatably connects with the press head, the bottom of press head is equipped with the first touch part, the top of main column is equipped with the linkage groove, is equipped with the second touch part on the side wall of linkage groove, the first touch part rotates in the linkage groove with press head, when the first touch part rotates to the maximum angle to clockwise or counterclockwise, the first touch part and the second touch part abut, make press head drive main column rotation. Through setting linkage groove, make press head have the buffer space of rotation, can idle, avoid being opened in the process of transportation and storage and leaking liquid, reduce assembly difficulty simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of push-button pump technology, and in particular to a push-button pump that prevents accidental opening. Background Technology

[0002] The press pump is used to pump liquid out of the bottle mouth. When the press head is tightened, it cannot move up and down to avoid accidental squeezing during transportation and storage, which could lead to liquid leakage. When the press head is unscrewed, it can move up and down for normal use.

[0003] For example, the Chinese invention patent applied for by this applicant, with publication number CN116788679B, discloses a press pump that prevents the push-button from rotating and opening. The pump includes a main body with a movable, liftable floating component inside, the floating component having a first height position and a second height position relative to the main body; a pump core assembly movably mounted on the floating component, with a push-button extending beyond the main body at its upper end; an elastic component located between the floating component and the push-button, used to drive the push-button to extend upwards; and a linkage locking mechanism located between the main body and the floating component, capable of stabilizing the floating component at the first height position or the second height position. The push-button is unlocked by the up-and-down movement of the floating component.

[0004] In actual use, it has been found that the addition of floating parts increases production costs, complicates the internal structure of the pump, increases weight, and increases the difficulty of assembly and maintenance.

[0005] Therefore, existing technologies need to be improved. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a press pump that prevents the press head from being accidentally opened by rotation, is easy to assemble, and reduces costs.

[0007] The technical solution adopted by this utility model to solve the problem is: a push-button pump to prevent accidental opening, comprising a body, a locking cover installed on the body, and a main column installed inside the locking cover. The main column is screwed to the lock cover, and a push head is rotatably connected to the top of the main column; The bottom of the push-button is provided with a plug-in part, and the side wall of the plug-in part is provided with a first actuating part. The top of the main column is provided with a linkage groove, which is plugged into the plug-in part. The side wall of the linkage groove is provided with a second actuating part. The first actuating part rotates synchronously with the press head. When the first actuating part rotates clockwise or counterclockwise to its maximum angle, the first actuating part abuts against the second actuating part, causing the press head to drive the main column to rotate.

[0008] As a further improvement to the above technical solution, the linkage groove is integrally formed on the inner wall of the top of the main column. The cross-section of the linkage groove is a circle composed of a wide arc surface and a narrow arc surface. The diameter of the wide arc surface is larger than that of the narrow arc surface. The second actuating part is located at the connection between the wide arc surface and the narrow arc surface. The first actuating part rotates around the center of the circle in an angle range of 0-360°.

[0009] As a further improvement to the above technical solution, the second triggering part includes a left second triggering part and a right second triggering part, which are symmetrically arranged on the left and right sides. The first triggering part is a column integrally formed on the outer wall of the insertion part, and the maximum rotation angle of the first triggering part around the center is 180°.

[0010] As a further improvement to the above technical solution, the inner wall of the wide arc surface is provided with a latching protrusion extending towards the center. The latching protrusion is an arc-shaped inclined surface and is located near the left second touch part or the right second touch part.

[0011] As a further improvement to the above technical solution, the main column is provided with a liquid outlet pipe, the plug part is provided with a liquid outlet channel, the top end of the liquid outlet pipe is inserted into the liquid outlet channel, and the outer wall of the liquid outlet pipe is in contact with the inner wall of the liquid outlet channel.

[0012] As a further improvement to the above technical solution, the outer wall of the main column is provided with an external thread, and the inner wall of the lock cover is provided with an internal thread corresponding to the external thread, and the external thread and the internal thread are screwed together.

[0013] As a further improvement to the above technical solution, a spring mounting part is provided on the outer side of the middle part of the main column, and a spring is provided inside the spring mounting part. The spring is elastically connected between the main column and the lock cover.

[0014] The beneficial effects of this utility model are: by setting a linkage groove, the pusher head has a buffer space for rotation, which can rotate freely within a certain angle range, avoiding accidental opening during transportation and storage that could lead to liquid leakage. At the same time, it provides more space for installing the pusher head, improving the fault tolerance rate and reducing assembly difficulty. The first and second triggering parts have simple structures and low production costs. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the main column of this utility model; Figure 4This is a schematic diagram of the structure of the pusher head of this utility model; Figure 5 for Figure 1 AA section view; Figure 6 for Figure 5 Enlarged view of point C; Figure 7 for Figure 1 BB cross-sectional view.

[0017] In the diagram: 1-body, 2-locking cover, 21-internal thread, 3-push-up head, 31-insertion part, 311-first actuating part, 312-liquid outlet channel, 4-main column, 41-linkage groove, 411-wide arc surface, 4111-locking protrusion, 412-narrow arc surface, 413-second actuating part, 413a-left second actuating part, 413b-right second actuating part, 42-liquid outlet pipe, 43-external thread, 44-spring mounting part, 5-spring. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1 , Figure 2 and Figure 5 A push-button pump designed to prevent accidental opening includes a body 1, a locking cover 2 mounted on the body 1, and a main column 4 installed inside the locking cover 2. The main column 4 is screwed to the lock cover 2, and the top of the main column 4 is rotatably connected to the push head 3; The bottom of the push-button 3 is provided with a plug-in part 31, and the side wall of the plug-in part 31 is provided with a first actuating part 311. The top of the main column 4 is provided with a linkage groove 41, which is plugged into the plug-in part 31. The side wall of the linkage groove 41 is provided with a second actuating part 413. The first actuating part 311 rotates synchronously with the press head 3. When the first actuating part 311 rotates clockwise or counterclockwise to the maximum angle, the first actuating part 311 abuts against the second actuating part 413, causing the press head 3 to drive the main column 4 to rotate.

[0023] The linkage groove 41 is set to allow the pusher head 3 to have more room to rotate. After rotating at a certain angle, the first trigger part 311 will contact the second trigger part 413, thereby driving the main column 4 to rotate and unlock, reducing the risk of the pusher head 3 being accidentally touched and leaking during filling, transportation and storage; and increasing the tolerance of workers when assembling the pusher head 3, reducing the assembly difficulty.

[0024] Preferred, refer to Figure 3 The linkage groove 41 is integrally formed on the inner wall of the top of the main column 4. The cross-section of the linkage groove 41 is a circle composed of a wide arc surface 411 and a narrow arc surface 412. The diameter of the wide arc surface 411 is larger than that of the narrow arc surface 412. The second actuating part 413 is located at the connection between the wide arc surface 411 and the narrow arc surface 412. The first actuating part 311 rotates around the center of the circle in an angle range of 0-360°.

[0025] The width difference between the wide arc surface 411 and the narrow arc surface 412 forms the second actuating part 413, which has a simple structure, is easy to produce, and reduces costs.

[0026] Preferably, the second actuating part 413 includes a left second actuating part 413a and a right second actuating part 413b, which are symmetrically arranged on the left and right sides. The first actuating part 311 is a column integrally formed on the outer wall of the insertion part 31, and the maximum rotation angle of the first actuating part 311 around the center is 180°.

[0027] To facilitate user operation, a left second touch part 413a and a right second touch part 413b are provided to reduce the number of rotations required by the user. When the push head 3 is facing to the left, rotating it counterclockwise by half a turn will allow the right second touch part 413b to be engaged; conversely, when the push head 3 is facing to the right, rotating it clockwise by half a turn will allow the right first touch part 311 to be engaged, making it flexible and convenient.

[0028] Preferred, refer to Figure 3 and Figure 6The inner wall of the wide arc surface 411 is provided with a locking protrusion 4111 extending towards the center. The locking protrusion 4111 is an arc-shaped inclined surface and is located near the left second actuating part 413a or the right second actuating part 413b.

[0029] When the first actuating part 311 rotates in the linkage groove 41, it will narrow slightly at the position of the locking protrusion 4111 and the rotation will slow down. The user can know the current position of the push head 3 based on the feedback. At the same time, when the pump is placed on its side, the locking protrusion 4111 can slightly press against the first actuating part 311 to fix the push head 3 and enable it to be quickly rotated to unlock.

[0030] Preferred, refer to Figure 2 and Figure 7 The main column 4 is provided with a liquid outlet pipe 42, and the plug part 31 is provided with a liquid outlet channel 312. The top end of the liquid outlet pipe 42 is inserted into the liquid outlet channel 312, and the outer wall of the liquid outlet pipe 42 is in contact with the inner wall of the liquid outlet channel 312.

[0031] The top of the liquid outlet pipe 42 is inserted into the liquid outlet channel 312, connecting the main column 4 and the nozzle of the push head 3 to pump out liquid; the liquid outlet pipe 42, together with the linkage groove 41, can also fix the push head 3 to prevent the push head 3 from shaking and becoming unstable.

[0032] Preferably, the outer wall of the main column 4 is provided with an external thread 43, and the inner wall of the lock cover 2 is provided with an internal thread 21 corresponding to the external thread 43, and the external thread 43 and the internal thread 21 are screwed together.

[0033] After the first actuating part 311 contacts the second actuating part 413, the pusher 3 drives the main column 4 to rotate. The external thread 43 and the internal thread 21 rotate relative to each other for a certain number of turns and then disengage. The main column 4 is disengaged from the lock cover 2. At this time, the pusher 3 can press up and down to pump out liquid.

[0034] Preferably, a spring mounting part 44 is provided on the outer side of the middle part of the main column 4, and a spring 5 is provided inside the spring mounting part 44. The spring 5 is elastically connected between the main column 4 and the lock cover 2. The spring 5 is used for the reset of the push head 3 after pressing.

[0035] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A push-button pump to prevent accidental opening, comprising a body (1), a locking cover (2) mounted on the body (1), and a main column (4) mounted inside the locking cover (2), characterized in that: The main column (4) is screwed to the lock cover (2), and the top of the main column (4) is rotatably connected to the push head (3). The bottom of the pusher (3) is provided with a plug-in part (31), and the side wall of the plug-in part (31) is provided with a first actuating part (311). The top of the main column (4) is provided with a linkage groove (41), the linkage groove (41) is plugged into the plug-in part (31), and the side wall of the linkage groove (41) is provided with a second actuating part (413). The first actuating part (311) rotates synchronously with the press head (3). When the first actuating part (311) rotates clockwise or counterclockwise to the maximum angle, the first actuating part (311) abuts against the second actuating part (413), causing the press head (3) to drive the main column (4) to rotate.

2. A push-button pump for preventing accidental opening as described in claim 1, characterized in that: The linkage groove (41) is integrally formed on the inner wall of the top of the main column (4). The cross-section of the linkage groove (41) is a circle composed of a wide arc surface (411) and a narrow arc surface (412). The diameter of the wide arc surface (411) is larger than that of the narrow arc surface (412). The second triggering part (413) is located at the connection between the wide arc surface (411) and the narrow arc surface (412). The first triggering part (311) rotates around the center of the circle at an angle range of 0-360°.

3. A push-button pump for preventing accidental opening as described in claim 2, characterized in that: The second triggering part (413) includes a left second triggering part (413a) and a right second triggering part (413b), which are symmetrically arranged on the left and right sides. The first triggering part (311) is a column integrally formed on the outer wall of the plug-in part (31), and the maximum rotation angle of the first triggering part (311) around the center is 180°.

4. A push-button pump for preventing accidental opening as described in claim 3, characterized in that: The inner wall of the wide arc surface (411) is provided with a locking protrusion (4111) extending towards the center. The locking protrusion (4111) is an arc-shaped inclined surface. The locking protrusion (4111) is located near the left second actuating part (413a) or the right second actuating part (413b).

5. A push-button pump for preventing accidental opening as described in claim 1, characterized in that: The main column (4) is provided with a liquid outlet pipe (42), and the plug part (31) is provided with a liquid outlet channel (312). The top end of the liquid outlet pipe (42) is inserted into the liquid outlet channel (312), and the outer wall of the liquid outlet pipe (42) is in contact with the inner wall of the liquid outlet channel (312).

6. A push-button pump for preventing accidental opening as described in claim 1, characterized in that: The outer wall of the main column (4) is provided with an external thread (43), and the inner wall of the lock cover (2) is provided with an internal thread (21) corresponding to the external thread (43). The external thread (43) and the internal thread (21) are screwed together.

7. A push-button pump for preventing accidental opening as described in claim 1, characterized in that: The main column (4) has a spring mounting part (44) on the outer side of the middle part, and a spring (5) is provided inside the spring mounting part (44). The spring (5) is elastically connected between the main column (4) and the lock cover (2).

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