Diaphragm water chamber structure and diaphragm pump applying same

Abstract

The utility model discloses a diaphragm water chamber structure and a diaphragm pump applying the diaphragm water chamber structure, and belongs to the technical field of diaphragm pumps, a diaphragm piece is arranged on a support, a plurality of water chambers are arranged on the support and distributed around the center of the support, a rib is arranged between every two adjacent water chambers, the diaphragm piece comprises a diaphragm body, the diaphragm body is opposite to the water chambers, and the water chambers are arranged in the diaphragm body. The ribs can abut against the diaphragm body, so that the multiple water chambers are independent of one another, the contact area of the ribs and the diaphragm body is small, abrasion can be reduced when the diaphragm body moves repeatedly, and therefore the effects of reducing noise and prolonging the service life are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to diaphragm pump technical field, concretely relates to a diaphragm water chamber structure and the diaphragm pump of applying it. BACKGROUND

[0002] For net drinking machine and pump water product, usually need to use water pump to complete the water delivery action, and the water pump will vibrate when running, in order to reduce the noise and vibration when pumping, most of the water is sent by diaphragm pump, and the diaphragm pump is used to form the water chamber between the diaphragm and the support, and the water chamber needs to be separated to complete the repeated compression and expansion in turn when pumping, and the suction and water delivery action is completed by changing the internal volume, so a partition is arranged between the diaphragm and the support to separate the water chambers, and the diaphragm is provided with protruding ribs on the diaphragm body, and the ribs are connected with the ribs on the support to separate the water chambers, however, it is found that the protruding ribs are easy to be worn and broken in the high-frequency pumping process, the noise increases after long-term use, the service life of the water pump is shortened, the suction capacity is also reduced, and the use requirement cannot be met, and a diaphragm water chamber structure capable of being used stably for a long time is required. SUMMARY

[0003] One of the purposes of the utility model is to provide a diaphragm water chamber structure, which solves the problem that the existing diaphragm pump water chamber structure is easy to wear and has reduced performance after long-term use.

[0004] To achieve the above-mentioned purposes of the utility model, the technical solutions adopted by the utility model are as follows:

[0005] A diaphragm water chamber structure, comprising a support and a diaphragm, the diaphragm is arranged on the support, the support is provided with a plurality of water chambers, the plurality of water chambers are arranged around the center of the support, a rib is arranged between two adjacent water chambers, the diaphragm comprises a diaphragm body, the diaphragm body is opposite to the plurality of water chambers, the rib can abut against the diaphragm body, so that the plurality of water chambers are independent of each other, the contact area between the rib and the diaphragm body is small, and the abrasion can be reduced when the diaphragm body repeatedly moves, so that the noise is reduced and the service life is prolonged.

[0006] Further, the bottom of the water chamber is provided with a suction hole, the diaphragm body is provided with a through hole in the region opposite to each water chamber, and the through holes on the side of the diaphragm body facing the support are connected by a smooth surface, which is used for reciprocating suction and pumping water.

[0007] Preferably, the middle part of the support is provided with a center hole, the middle part of the diaphragm is provided with a convex ring, the convex ring is matched with the center hole, and the diaphragm is fixed and the water chambers are separated.

[0008] Preferably, a sealing ring is further included, an outer edge of the diaphragm sheet is provided with a stepped portion, an outer edge of the support is clamped to an inner side of the stepped portion, the sealing ring is arranged on an outer side wall of the support, and the sealing ring is in contact with an end surface of the diaphragm sheet for limiting the diaphragm sheet.

[0009] More preferably, a boss is arranged on an edge of the through hole, the boss is arranged on a side wall of the diaphragm sheet away from the water chamber, and the boss is used for reinforcing the through hole.

[0010] More preferably, the diaphragm sheet comprises a plurality of arc-shaped portions, the plurality of arc-shaped portions are arranged around a center of the diaphragm sheet in a first-to-last manner, and adjacent two arc-shaped portions are connected in a smooth transition manner, so as to expand a volume of each water chamber and prevent rotation of the diaphragm sheet when the diaphragm sheet vibrates.

[0011] Further, a lower part of the rib is wider than an upper part of the rib in cross section, so as to reduce a contact area between the rib and the diaphragm sheet.

[0012] Further, two side walls of the upper part of the rib are contracted to the middle in a direction of the diaphragm sheet, and a top of the rib is connected in a smooth transition manner, so as to reduce friction on the diaphragm sheet.

[0013] Further, the top of the rib is flush with an upper end surface of the support, so as to independently separate each water chamber and prevent water leakage between the water chambers.

[0014] The second purpose of the diaphragm pump is to solve the problems of short service life and large operation noise of the existing diaphragm pump.

[0015] To achieve the above-mentioned purposes, the technical scheme adopted by the diaphragm pump is as follows.

[0016] The diaphragm pump comprises the diaphragm water chamber structure, so as to prolong the service life of the diaphragm pump and reduce noise during work.

[0017] The diaphragm pump has the following beneficial effects.

[0018] (1) The diaphragm water chamber structure is composed of a diaphragm sheet and a support, a plurality of water chambers are arranged around a center on the support, the water chambers are separated by ribs, a surface of the diaphragm sheet is smooth, the separation between the water chambers is completed by direct contact between the top of the rib and the diaphragm sheet, the contact area between the rib and the diaphragm sheet is small, the friction between the rib and the diaphragm sheet is greatly reduced, the separation is formed by extrusion of the rib and the diaphragm sheet, the abrasion and noise are reduced, the service life of the diaphragm water chamber structure can be greatly improved without affecting the output flow.

[0019] (2) the diaphragm water chamber structure rib is wide under and narrow on, the separation between each water chamber is stable, the upper part is smoothly transitioned with the diaphragm piece, so that the friction caused when the two contact is small and the extrusion separation formed is stable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The explosion map of the diaphragm water chamber structure is provided for the utility model;

[0021] Figure 2 The front view of the diaphragm piece is provided for the utility model;

[0022] Figure 3 The isometric view of the bracket is provided for the utility model;

[0023] Figure 4 The front view of the bracket is provided for the utility model;

[0024] Figure 5 The isometric view of the diaphragm pump is provided for the utility model Figure 4 The section view along A-A line is provided for the utility model;

[0025] Figure 6 The isometric view of the diaphragm pump is provided for the utility model

[0026] Figure 7 The front view of the diaphragm pump is provided for the utility model

[0027] Figure 8 The section view along B-B line is provided for the utility model; Figure 7 The section view along B-B line is provided for the utility model;

[0028] Reference signs:

[0029] 1, bracket; 11, water chamber; 111, suction hole; 12, rib; 13, flange; 14, center hole; 15, sealing ring; 2, diaphragm piece; 21, diaphragm body; 22, boss; 23, through hole; 24, step part; 25, convex ring; 26, arc part; 3, pump cavity shell. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Embodiment one

[0032] As Figures 1-8As shown, the embodiment discloses a diaphragm water chamber structure, which comprises a support 1 and a diaphragm 2, the diaphragm 2 is arranged on the support 1, the support 1 is provided with a plurality of water chambers 11, the plurality of water chambers 11 are arranged around the center of the support 1, a rib 12 is arranged between adjacent two water chambers 11, the diaphragm 2 comprises a diaphragm body 21, the diaphragm body 21 is opposite to the plurality of water chambers 11, the rib 12 can abut against the diaphragm body 21, so that the plurality of water chambers 11 are independent of each other, each water chamber 11 is used to complete a reciprocating pumping action under the driving of a motor, the rib 12 is directly in contact with the diaphragm body 21 at the top to form a partition, thereby reducing the contact area between the diaphragm body 21 and the support 1 during pumping, so as to reduce the wear caused by the upper friction, and the service life of the whole is improved, in addition, no additional structure is needed on the diaphragm 2, thereby reducing the manufacturing cost.

[0033] Further, the bottom of the water chamber 11 is provided with a pumping hole 111, the region of the diaphragm body 21 opposite to each water chamber 11 is provided with a through hole 23, the through holes 23 on the side of the diaphragm body 21 facing the support 1 are connected by a smooth surface, the pumping hole 111 is composed of a central hole and a plurality of holes distributed around the central hole, the pressure generated during pumping is dispersed through the plurality of holes, the pressure on the diaphragm 2 is dispersed, and the service life of the diaphragm 2 is prolonged.

[0034] Preferably, the middle part of the support 1 is provided with a central hole 14, the middle part of the diaphragm 2 is provided with a convex ring 25, the convex ring 25 is matched with the central hole 14, a flange 13 is arranged at the edge of the central hole 14, the convex ring 25 is clamped to the flange 13, which is used for positioning the diaphragm 2 and the support 1, and separates the middle part from each water chamber 11, so as to prevent water leakage from each water chamber 11, and a sealing element can be installed on the inner side of the flange 13 to prevent water from flowing in the middle.

[0035] Preferably, a sealing ring 15 is further included, the outer edge of the diaphragm 2 is provided with a stepped portion 24, the outer edge of the support 1 is clamped to the inner side of the stepped portion 24, the sealing ring 15 is arranged on the outer side wall of the support 1, and the sealing ring 15 is in contact with the end surface of the diaphragm 2, specifically, the sealing ring 15 is in contact with the end surface of the stepped portion 24, the diaphragm 2 and the edge of the support 1 are connected together by the stepped portion 24, which plays a fixing role and makes the side of the water chamber 11 closed to prevent water from leaking outward during pumping.

[0036] More preferably, a boss 22 is arranged on the edge of the through hole 23, the boss 22 is arranged on the side wall of the diaphragm 2 away from the water chamber 11, the central hole 14 and the convex ring 25 are used to connect the plunger to fix the diaphragm 2 to the driving member for use, the convex ring 25 reinforces the edge of the central hole 14 to prevent water leakage after the central hole 14 is broken and damaged.

[0037] More preferably, the diaphragm sheet 2 comprises a plurality of arc-shaped sections 26, which are arranged around the center of the diaphragm sheet 2 in a head-to-tail manner, smoothly connected between two adjacent arc-shaped sections 26, and periodically change in distance from the center of the diaphragm sheet 2 from far to near, with the edge being in a circular arc shape. The diaphragm sheet 2 is arranged as a non-rotational body, which can prevent the diaphragm sheet 2 from moving due to vibration after installation, and improve the stability of the diaphragm sheet 2. Each arc-shaped section 26 corresponds to a water chamber 11, which reduces the mutual influence of the water chambers 11.

[0038] Further, the lower part of the rib 12 has a larger cross section than the upper part of the rib 12, which reduces the contact area with the diaphragm sheet 2 and thus reduces the abrasion.

[0039] Further, the two side walls of the upper part of the rib 12 shrink towards the middle in the direction of the diaphragm sheet 2, and the top of the rib 12 is smoothly connected. The lower part of the rib 12 is wide and the upper part is narrow, which facilitates manufacturing and ensures the independence of each water chamber 11. The top of the rib 12 is smoothly connected, which reduces the local pressure of the contact and collision between the diaphragm sheet 2 and the rib 12, and thus reduces the abrasion of the diaphragm sheet 2. The contact process is from shallow to deep, and the pressure received by the suction pump during suction changes from small to large, which reduces water leakage and ensures sufficient suction volume.

[0040] Further, the top of the rib 12 is flush with the upper end surface of the support 1, and a water retaining wall is arranged at the edge of the support 1 to surround each water chamber 11. The top of the water retaining wall has the same cross-sectional width as the top of the rib 12, which makes the contact area between the upper end surface of the support 1 and the diaphragm sheet 2 small and forms a partition. The abrasion degree of the diaphragm sheet 2 is similar at different positions, which prolongs the overall service life of the diaphragm water chamber.

[0041] The working process of the diaphragm water chamber structure is as follows:

[0042] The diaphragm sheet 2 above the water chamber 11 reciprocates up and down under the driving action, changes the volume of the water chamber 11, and thus sucks water through the suction hole 111 of the support 1. Each water chamber 11 is sequentially and out-of-order rotated under the driving of the diaphragm sheet 2, and continuously completes water suction and pressure delivery. The diaphragm sheet 2 contacts the rib 12 on the side of the water chamber 11. When the water chamber 11 is compressed, the rib 12 is pressed onto the diaphragm sheet 2 to complete the separation and drainage between the water chambers 11. When the water chamber 11 expands, the rib 12 remains in contact with the diaphragm sheet 2 to complete water absorption. At this time, the pressure is small, and the diaphragm sheet 2 is less abraded. The reciprocating action of the water chamber 11 compression and expansion completes water suction and water delivery.

[0043] Example Two

[0044] As Figures 6-8As shown, the embodiment also discloses a diaphragm pump, comprising a diaphragm water chamber structure, a pump cavity shell 3 and a driving assembly, the diaphragm water chamber structure is arranged in the pump cavity shell 3, and the driving assembly drives the diaphragm 2 to reciprocate to complete the suction action.

[0045] According to the disclosure and teaching of the above description, the skilled in the art of the utility model can also change and modify the above-mentioned embodiments. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the utility model should also fall within the protection scope of the claims of the utility model. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the utility model.

Claims

1. A diaphragm water chamber structure comprising a support (1) and a diaphragm sheet (2), the diaphragm sheet (2) being arranged on the support (1), the support (1) being provided with a plurality of water chambers (11), the plurality of water chambers (11) being arranged to be distributed around the center of the support (1), and a rib (12) being arranged between two adjacent water chambers (11), characterized in that: The diaphragm sheet (2) comprises a diaphragm body (21) opposite to a plurality of water chambers (11), and the ribs (12) are capable of being in contact with the diaphragm body (21) so that the plurality of water chambers (11) are independent of each other.

2. The diaphragm water chamber structure according to claim 1, characterized in that: The water chamber (11) is provided with a suction hole (111) at the bottom, and the diaphragm body (21) is provided with a through hole (23) at the area opposite to each water chamber (11), and the through holes (23) on the side of the diaphragm body (21) facing the support (1) are connected by a smooth surface.

3. The diaphragm water chamber structure according to claim 2, characterized in that: The support (1) is provided with a center hole (14) in the middle, and the diaphragm sheet (2) is provided with a convex ring (25) in the middle, and the convex ring (25) is matched with the center hole (14).

4. The diaphragm water chamber structure according to claim 3, characterized in that: It further comprises a sealing ring (15), and the outer edge of the diaphragm sheet (2) is provided with a stepped portion (24), and the outer edge of the support (1) is clamped to the inner side of the stepped portion (24), and the sealing ring (15) is arranged on the outer side wall of the support (1), and the sealing ring (15) is in contact with the end surface of the diaphragm sheet (2).

5. The diaphragm water chamber structure according to claim 4, characterized in that: The edge of the through hole (23) is provided with a boss (22), and the boss (22) is arranged on the side wall of the diaphragm sheet (2) away from the water chamber (11).

6. The diaphragm water chamber structure according to claim 1, characterized in that: The diaphragm sheet (2) comprises a plurality of arc-shaped portions (26), and the plurality of arc-shaped portions (26) are connected end to end around the center of the diaphragm sheet (2), and the adjacent two arc-shaped portions (26) are connected by a smooth transition.

7. The diaphragm water chamber structure according to claim 1, characterized in that: The lower part of the rib (12) has a larger cross section than the upper part of the rib (12).

8. The diaphragm water chamber structure according to claim 7, characterized in that: The side walls of the upper part of the rib (12) are contracted towards the middle of the diaphragm sheet (2), and the top of the rib (12) is smoothly transitioned.

9. The diaphragm water chamber structure according to claim 8, characterized in that: The top of the rib (12) is flush with the upper end surface of the support (1).

10. A diaphragm pump characterized by: The diaphragm water chamber structure according to any one of claims 1-9.

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