Pump with pressing head internally locked

Abstract

The invention relates to the field of pressing pumps for packaging, in particular to a pump with an internally-locked pressing head, which comprises the pressing head, a body, a main column and a guide sleeve, a spiral groove with an opening in the top is formed in the inner wall of the body, the guide sleeve is arranged in the body, a sliding block is arranged on the outer wall of the guide sleeve, the sliding block is in sliding connection with the spiral groove, the guide sleeve is arranged on the main column in a sleeving mode, the main column is in vertical sliding connection with the guide sleeve, and the main column is connected with the guide sleeve in a sliding mode. The pressing head is fixedly installed on the top of the main column. By rotating the pressing head, the pressing head drives the guide sleeve to rotate through the main column, and therefore the guide sleeve can rotate relative to the body. The pump with the pressing head internally locked has the advantages of being simple in structure and low in cost.

Description

Technical Field

[0001] The invention relates to the field of a press pump for packaging, in particular to a pump with an inner lock on the press head. Background Art

[0002] The Chinese patent with announcement number CN112340224B discloses an all-plastic pump with inner locking. In the locked state, the guide locking block of the outer sleeve is engaged with the circumferential locking groove of the lock cover; the arc-shaped guide locking block of the main column and the annular connecting seat between the two guide blocks of the inner sleeve cooperate to stop, and the spiral inclined surface on the axial guide rail of the main column cooperates with the spiral surface of the guide block; in the natural state after unlocking, the guide locking block of the outer sleeve slides with the axial guide groove of the lock cover, and the arc-shaped guide locking block at the upper end of the main column cooperates with the lower end support of the guide block; the axial guide rail of the main column slides with the axial guide groove on the annular seat on the lock cover.

[0003] The problems existing in the prior art are: complex structure and high cost. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a pump with a push-head inner lock, which has a simple structure and low cost.

[0005] The technical solution adopted by the present invention to solve the problem is: a pump with a push-head internal lock, comprising: a push-head, a body, a main column, and a guide sleeve; a spiral groove with a top opening is provided on the inner wall of the body, the guide sleeve is arranged in the body, a sliding block is provided on the outer wall of the guide sleeve, the sliding block is slidably connected to the spiral groove, the guide sleeve is sleeved on the main column, the main column and the guide sleeve are vertically slidably connected, and the push-head is fixedly installed on the top of the main column; by rotating the push-head, the push-head drives the guide sleeve to rotate through the main column, so that the guide sleeve can rotate relative to the body.

[0006] As a further improved technical solution, the top of the spiral groove is connected to a limiting groove, and the middle part of the limiting groove is concave.

[0007] As a further improved technical solution, the main body includes an upper cylinder and a lower cylinder, the spiral groove and the limit groove are both arranged in the upper cylinder; a piston is installed at the lower end of the main column, and a liquid inlet hole is provided at the lower end of the main column, and the liquid inlet hole is provided below the piston, and the piston is provided on the lower side of the guide sleeve, the piston is provided in the lower cylinder and dynamically sealed with the lower cylinder, and an air replenishing hole is provided on the lower cylinder.

[0008] As a further improved technical solution, a tapered portion is provided between the upper cylinder and the lower cylinder, and a step is provided on the guide sleeve, and the step can abut against the tapered portion.

[0009] As a further improved technical solution, a guide boss is provided on the main column, a vertical slide groove is provided in the guide sleeve, the guide boss is slidably connected to the vertical slide groove, a spring is provided on the main column, the upper end of the spring abuts against the guide boss, and the lower end of the spring abuts against the guide sleeve.

[0010] As a further improved technical solution, it also includes a tooth cover and a lock cover, the tooth cover is sleeved on the upper part of the main body, the lock cover is arranged above the tooth cover, the lock cover is threadedly connected to the upper end of the main body, and the lock cover is crimped on the guide boss.

[0011] As a further improved technical solution, the number of the vertical sliding grooves is greater than the number of the guide bosses, and when the main column slides with the guide sleeve, there are at least two relative angles between the two.

[0012] As a further improved technical solution, the spring is a plastic spring.

[0013] As a further improved technical solution, a convex ring is provided at the bottom of the guide sleeve, and the piston includes a cylindrical sealing part, an annular connecting part and a cylindrical mounting part which are arranged in sequence from the outside to the inside, the convex ring abuts against the top of the mounting part, and the sealing part is sleeved on the convex ring.

[0014] As a further improved technical solution, a polygonal mounting hole is provided in the button head, and a polygonal mounting column is provided on the main column, and the mounting holes are plugged into each other.

[0015] The beneficial effect of the present invention is that by rotating the push head, the push head drives the guide sleeve to rotate through the main column, so that the guide sleeve can rotate relative to the body. During the rotation of the guide sleeve, the guide sleeve, the main column and the push head all rise along the spiral path to achieve the purpose of raising the push head. The push head is in a self-locking state, there is no space below it, and it cannot be pressed. After the push head rises, the push head is in an unlocked state and can be pressed down. The present invention can achieve the function of an inner locking type push head through a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a front view of a preferred embodiment of the present invention, wherein the push head is in a self-locking state;

[0018] Figure 2 It is a cross-sectional view of a preferred embodiment of the present invention, wherein the push head is in a self-locking state;

[0019] Figure 3 is a cross-sectional view of a preferred embodiment of the present invention, wherein the push head is in an unlocked state;

[0020] Figure 4 An exploded view of a preferred embodiment of the present invention in a bottom-up direction;

[0021] Figure 5 It is an exploded view from a top view of a preferred embodiment of the present invention.

[0022] In the figure: 1-main body, 11-spiral groove, 12-limiting groove, 13-upper cylinder, 14-lower cylinder, 15-conical part, 2-press head, 21-mounting hole, 3-locking cover, 5-main column, 51-guide boss, 52-mounting column, 7-guide sleeve, 71-sliding block, 72-step, 73-convex ring, 75-vertical slide groove, 8-spring, 9-tooth cover, 10-piston, 101-sealing part, 102-connecting part, 103-mounting part. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, the meaning of "several" is one or more, the meaning of "more" is more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms such as "set", "install", and "connect" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in the present invention in combination with the specific content of the technical solution.

[0026] Reference Figures 1 to 5 , a pump with a head lock, comprising:

[0027] A pressing head 2, a main body 1, a main column 5, and a guide sleeve 7; a spiral groove 11 with an opening at the top is provided on the inner wall of the main body 1, the guide sleeve 7 is arranged in the main body 1, and a sliding block 71 is provided on the outer wall of the guide sleeve 7, and the sliding block 71 is slidably connected to the spiral groove 11; the guide sleeve 7 is sleeved on the main column 5, and the main column 5 is vertically slidably connected to the guide sleeve 7, and the pressing head 2 is fixedly installed on the top of the main column 5; by rotating the pressing head 2, the pressing head 2 drives the guide sleeve 7 to rotate through the main column 5, so that the guide sleeve 7 can rotate relative to the main body 1, and during the rotation of the guide sleeve 7, the guide sleeve 7, the main column 5 and the pressing head 2 all rise along the spiral path, so as to achieve the purpose of lifting the pressing head 2. Figure 2 , the button 2 is in a self-locking state, there is no space below it, and it cannot be pressed. Figure 3 After the push head is raised, the push head 2 is in an unlocked state and can be pressed down. The present invention can realize the function of the inner locking type push head through a simple structure.

[0028] The sliding block 71 and the spiral groove 11 can be fitted with an interference fit to increase friction and prevent the guide sleeve from being displaced when the pump is shaken or collided. A buckle structure can also be used to detachably connect any one of the push head 2, the main column 5, and the guide sleeve 7 to the body 1.

[0029] As a preferred embodiment, the top of the spiral groove 11 is connected to the limiting groove 12, and the middle of the limiting groove 12 is concave. When the sliding block 71 rises to the top of the spiral groove 11, the button head continues to rotate, and the sliding block 71 enters the limiting groove 12 to prevent the sliding block 71 from automatically falling along the spiral groove 11.

[0030] As a preferred embodiment, the main body 1 includes an upper cylinder 13 and a lower cylinder 14, and the spiral groove 11 and the limit groove 12 are both arranged in the upper cylinder 13; a piston 10 is installed at the lower end of the main column 5, and a liquid inlet hole is arranged at the lower end of the main column 5, and the liquid inlet hole is arranged below the piston 10, and the piston 10 is arranged on the lower side of the guide sleeve 7, and the piston 10 is arranged in the lower cylinder 14 and is dynamically sealed with the lower cylinder 14, and an air replenishment hole is arranged on the lower cylinder 14. Since the piston 10 is arranged in the lower cylinder 14 and the spiral groove 11 is arranged in the upper cylinder 13, the contents sucked into the pump below the piston will not enter the spiral groove. Therefore, after the pump of the present invention has been used for a period of time, the pressing head 2 can be manually rotated to move it down again, so as to Figure 3 The status becomes Figure 2 status.

[0031] As a preferred embodiment, a tapered portion 15 is provided between the upper cylinder 13 and the lower cylinder 14, and a step 72 is provided on the guide sleeve 7, and the step 72 can abut against the tapered portion 15. This structure can ensure the relative position of the guide sleeve 7 and the body 1.

[0032] As a preferred embodiment, the main column 5 is provided with a guide boss 51, the guide sleeve 7 is provided with a vertical slide groove 75, the guide boss 51 is slidably connected with the vertical slide groove, the main column 5 is sleeved with a spring 8, the upper end of the spring 8 abuts against the guide boss 51, and the lower end of the spring 8 abuts against the guide sleeve 7. When the push head 2 is in the unlocked state, the spring 8 is compressed by pressing the push head 2, and the contents in the bottle body installed with the pump can be sucked up. The guide boss 51 cooperates with the vertical slide groove 76, so that the main column 5 and the guide sleeve 7 can slide vertically relative to each other, and can rotate synchronously when rotating.

[0033] In a preferred embodiment, a threaded cover 9 and a locking cover 3 are further included. The threaded cover 9 is sleeved on the upper part of the body 1, and the locking cover 3 is arranged above the threaded cover 9. The locking cover 3 is threadedly connected to the upper end of the body 1, and the locking cover 3 is pressed on the guide boss 51. The locking cover 3 is used to limit the lower part of the main column 5 and the guide sleeve 7 in the body 1. The threaded cover 9 is used to connect the packaging bottle of the external device.

[0034] In a preferred embodiment, the number of the vertical slide grooves 75 is greater than the number of the guide bosses 51, and when the main column 5 slides with the guide sleeve 7, the two have at least two relative angles. This structure allows the main column 5 to be inserted into the guide sleeve from different angles during installation, which ultimately affects the relative angle between the push head 2 and the external packaging bottle.

[0035] In a preferred embodiment, the spring 8 is a plastic spring 8 .

[0036] In a preferred embodiment, a convex ring 73 is provided at the bottom of the guide sleeve 7, and the piston 10 includes a cylindrical sealing portion 101, an annular connecting portion 102 and a cylindrical mounting portion 103 which are sequentially arranged from the outside to the inside, the convex ring 73 abuts against the top of the mounting portion 103, and the sealing portion 101 is sleeved on the convex ring 73. The convex ring 73 can assist the sealing portion 101 in maintaining its shape during use to prevent the sealing ability from decreasing after its deformation.

[0037] The pressing head 2 is provided with a polygonal mounting hole 21, the main column 5 is provided with a polygonal mounting column 52, and the mounting hole 21 is plugged into the mounting hole 21. This structure is conducive to adjusting the installation angle of the pressing head 2 during installation, so as to adjust the relative position of the pressing head 2 and the external packaging bottle.

[0038] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A pump with a head lock, characterized in that: include: A button head (2), a main body (1), a main column (5), and a guide sleeve (7); The inner wall of the body (1) is provided with a spiral groove (11) with an opening at the top; the guide sleeve (7) is arranged in the body (1); a sliding block (71) is arranged on the outer wall of the guide sleeve (7); the sliding block (71) is slidably connected to the spiral groove (11); the guide sleeve (7) is sleeved on the main column (5); the main column (5) and the guide sleeve (7) are vertically slidably connected; and the push head (2) is fixedly installed on the top of the main column (5); By rotating the push head (2), the push head (2) drives the guide sleeve (7) to rotate via the main column (5), so that the guide sleeve (7) can rotate relative to the body (1).

2. A pump with a push-button lock as claimed in claim 1, characterized in that: The top of the spiral groove (11) is connected to the limiting groove (12), and the middle of the limiting groove (12) is concave.

3. A pump with a push-button lock as claimed in claim 2, characterized in that: The main body (1) comprises an upper cylinder (13) and a lower cylinder (14), and the spiral groove (11) and the limiting groove (12) are both arranged in the upper cylinder (13); A piston (10) is installed at the lower end of the main column (5), and a liquid inlet hole is provided at the lower end of the main column (5). The liquid inlet hole is provided below the piston (10). The piston (10) is provided on the lower side of the guide sleeve (7). The piston (10) is provided in the lower cylinder (14) and is dynamically sealed with the lower cylinder (14). An air supplement hole is provided on the lower cylinder (14).

4. A pump with a push-button lock as claimed in claim 3, characterized in that: A tapered portion (15) is provided between the upper cylinder (13) and the lower cylinder (14), and a step (72) is provided on the guide sleeve (7), and the step (72) can abut against the tapered portion (15).

5. A pump with a push-button lock as claimed in claim 1, characterized in that: The main column (5) is provided with a guide boss (51), the guide sleeve (7) is provided with a vertical slide groove (75), the guide boss (51) is slidably connected with the vertical slide groove, the main column (5) is sleeved with a spring (8), the upper end of the spring (8) is in contact with the guide boss (51), and the lower end of the spring (8) is in contact with the guide sleeve (7).

6. A head-locking pump as claimed in claim 5, characterized in that: It also includes a threaded cover (9) and a locking cover (3), wherein the threaded cover (9) is sleeved on the upper part of the body (1), and the locking cover (3) is arranged above the threaded cover (9), the locking cover (3) is threadedly connected to the upper end of the body (1), and the locking cover (3) is pressed onto the guide boss (51).

7. A pump with a push-button lock as claimed in claim 5, characterized in that: The number of the vertical sliding grooves (75) is greater than the number of the guide bosses (51), and when the main column (5) slides with the guide sleeve (7), the two have at least two relative angles.

8. A head-locking pump as claimed in claim 1, characterized in that: The spring (8) is a plastic spring (8).

9. A push-button inner-locking pump as claimed in claim 1, characterized in that: A convex ring (73) is provided at the bottom of the guide sleeve (7), and the piston (10) comprises a cylindrical sealing portion (101), an annular connecting portion (102) and a cylindrical mounting portion (103) which are arranged in sequence from the outside to the inside, the convex ring (73) abuts against the top of the mounting portion (103), and the sealing portion (101) is sleeved on the convex ring (73).

10. A pump with a push-button lock as claimed in claim 1, characterized in that: The button head (2) is provided with a polygonal mounting hole (21), the main column (5) is provided with a polygonal mounting column (52), and the mounting holes (21) are plugged into each other.

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