Hand-held high-pressure diaphragm pump
By introducing a sliding and rotating rectangular rod and a grip rod structure into the hand-held high-pressure diaphragm pump, the handle can be stored, solving the problems of traditional handles obstructing operation and occupying space, improving the convenience and stability of the equipment, and enhancing grip comfort and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU DAHUA
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-03
AI Technical Summary
The handle of a traditional hand-held high-pressure diaphragm pump is fixed and compact, which can easily obstruct pipeline connection operations and take up space. It is also inconvenient to store when space is limited, affecting the ease of use and efficiency.
The design incorporates a sliding and rotating rectangular rod and grip structure. The handle is retractable via a storage slot and snap-fit mechanism, and is further secured by a locking block and torsion spring to ensure stable storage when not in use.
It solves the problems of handles obstructing pipe connections and taking up space, improves ease of operation and equipment stability, enhances grip comfort and safety, and reduces fatigue during long-term handling.
Smart Images
Figure CN224453043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diaphragm pump technology, and more specifically, to a hand-operated high-pressure diaphragm pump. Background Technology
[0002] Hand-held high-pressure diaphragm pumps play an important role in emergency rescue, small-scale engineering operations, and other fields due to their ease of movement and rapid deployment.
[0003] Utility model patent CN218467797U discloses a portable, hand-held high-pressure diaphragm pump, including a diaphragm pump body. A base frame is located below the pump body, and two supports are mounted on both sides of the upper part of the base frame. A handle is positioned between the upper parts of the two supports. A groove is formed at the bottom of the base frame, and an auxiliary moving component is disposed within the groove. The auxiliary moving component includes a base plate, two wheels, and a shock-absorbing plate. The diaphragm pump body includes an engine, a pump body, a base one, and a base two, with the engine one mounted on the base one. This utility model, with its diaphragm pump body, base frame, supports, handle, groove, auxiliary moving component, slider, and connecting rod, not only facilitates manual lifting and carrying by workers, but also allows the auxiliary moving component to replace manual handling on flat surfaces, reducing operational difficulty during transportation and further improving transport efficiency.
[0004] While this technical solution reduces operational difficulty during transportation and further improves transport efficiency, most currently available hand-held high-pressure diaphragm pumps have their handles fixed to the corresponding frame. Because hand-held high-pressure diaphragm pumps are generally designed for easy lifting, their structure is relatively compact. This results in a small distance between the handle and adjacent components. Furthermore, since the handle is vertically fixed, it can obstruct subsequent pipe connection operations. The inability to retract the handle also occupies external space, causing inconvenience for users in situations with limited space. Therefore, we propose a hand-held high-pressure diaphragm pump. Utility Model Content
[0005] The purpose of this invention is to provide a hand-operated high-pressure diaphragm pump to address the deficiencies mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A hand-held high-pressure diaphragm pump includes a high-pressure diaphragm pump body. A support base is fixedly installed at the bottom of the high-pressure diaphragm pump body. A receiving groove is provided in the end of the rods on both the front and rear sides of the support base. A sliding groove is provided on the left and right side walls of the receiving groove. An upper through-hole is provided on the top wall of the end opening of the receiving groove. A rectangular rod is slidably connected inside the receiving groove. Two symmetrical rotating shafts are fixedly installed on the inner end of the rectangular rod. The rotating shafts are located within the sliding grooves and slidably connected to the sliding grooves. The rotating shafts are also rotatably connected to the sliding grooves. The rectangular rods are engaged with the upper through-hole. A gripping rod is fixedly installed between the two rectangular rods.
[0008] Preferably, the cross-section of the support base is "H" shaped, and the high-pressure diaphragm pump body is detachably mounted on the top surface of the support base.
[0009] Preferably, the front end of the slide is not connected to the outside. After the rotating shaft slides to abut against the front wall of the slide, the rectangular rod rotates to a vertical position and is locked in the upper through-groove.
[0010] This feature allows the rectangular bar to rotate normally to a vertical position, making it easier to handle and move the bar.
[0011] Preferably, a plurality of support feet are fixedly installed on the bottom of the support base, and anti-slip pads are fixedly installed on the bottom ends of the support feet;
[0012] This setup allows for support using support feet and anti-slip pads.
[0013] Preferably, the grip bar is integrally formed on the rectangular bar, and each corner of the grip bar is provided with an arc-shaped surface;
[0014] This feature enhances the structural rigidity, while the curved surface improves hand grip comfort.
[0015] Preferably, the front end of the rectangular rod is provided with a slot, and the side of the end of the support base is provided with a snap-fit component for limiting the rectangular rod.
[0016] Preferably, the snap-fit component includes a fixed seat fixedly installed on the side of the end rod of the support base. The fixed seat is provided with a U-shaped groove. A snap-fit block is rotatably connected between the left and right sides of the U-shaped groove through a rotating shaft. The snap-fit block is engaged with the snap-fit groove. Two symmetrical torsion springs are also provided between the snap-fit block and the fixed seat.
[0017] The above two settings can limit the rectangular rod after it is stored, preventing it from accidentally sliding out.
[0018] Preferably, a handle is fixedly installed on the top surface of the card block, and the angle between the handle and the card block is between 45° and 60°.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This utility model achieves the storage function of a hand-held high-pressure diaphragm pump handle by setting a sliding and rotating rectangular rod in the storage groove of the support base and installing a gripping rod between the rectangular rods. The rectangular rod slides and rotates in the groove through the pivot, and can slide out of the storage groove and rotate to a vertical position for handling, or can be stored back in the groove. This solves the problem of traditional fixed handles obstructing pipeline connection operations and occupying space, making the operation of the pump more convenient in different scenarios.
[0021] 2. This utility model achieves reliable positioning of the rectangular rod after it is stored by setting a snap-fit component at the end of the support base, and the snap-fit component's snap-fit block engages with the snap-fit groove of the rectangular rod. When the rectangular rod is stored in the storage groove, the snap-fit block engages tightly with the snap-fit groove under the action of the torsion spring, preventing the rectangular rod from accidentally slipping out, ensuring the stability of the pump handle during storage, and avoiding inconvenience or damage caused by handle shaking.
[0022] 3. This utility model achieves robustness of the handle structure, comfort of grip, and stability of the pump body by integrally molding the grip rod onto a rectangular rod and setting an arc-shaped surface at the corner, as well as installing support pads with anti-slip pads at the bottom of the support base. The integral molding structure enhances the overall strength of the handle; the arc-shaped surface conforms to the curve of the hand, reducing fatigue during long-term handling; the anti-slip pads increase the friction with the ground, making the pump more stable during operation, thus improving the practicality and safety of the equipment. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0025] Figure 3 This is a partial structural schematic diagram of the present invention;
[0026] Figure 4 This is a schematic diagram of the structure of the snap-fit component of this utility model;
[0027] The meanings of the labels in the diagram are as follows:
[0028] 1. High-pressure diaphragm pump body;
[0029] 2. Support base; 20. Support feet; 21. Anti-slip pad; 22. Storage slot; 221. Slide groove; 23. Top through slot;
[0030] 3. Rectangular rod; 30. Slot; 31. Grip rod; 311. Curved surface; 32. Rotating shaft;
[0031] 4. Snap-fit component; 40. Fixing base; 401. U-shaped groove; 41. Locking block; 42. Torsion spring; 43. Handle. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-4 This utility model provides a technical solution: a hand-held high-pressure diaphragm pump, including a high-pressure diaphragm pump body 1. A support base 2 is fixedly installed at the bottom of the high-pressure diaphragm pump body 1. The support base 2 can be made of high-strength steel material, so that the support base 2 has sufficient support strength for the high-pressure diaphragm pump body 1. The end rods on the front and rear sides of the support base 2 are provided with storage grooves 22. The left and right side walls of the storage grooves 22 are provided with sliding grooves 221. The top wall of the end slot of the storage groove 22 is provided with an upper through groove 23. A rectangular rod 3 is slidably connected in the storage groove 22. Two symmetrical rotating shafts 32 are fixedly installed on the inner end rod of the rectangular rod 3. The rotating shafts 32 are located in the sliding grooves 221 and are slidably connected to the sliding grooves 221. The rotating shafts 32 are rotatably connected to the sliding grooves 221. The rectangular rods 3 are engaged with the upper through grooves 23. A gripping rod 31 is fixedly installed between the two rectangular rods 3, so that the gripping rod 31 can be stored and used conveniently. When it needs to be moved, the rectangular rod 3 can slide out from the storage slot 22 and rotate to a vertical position to be inserted into the upper through slot 23 for easy gripping and moving; when it is not in use, it can be stored back in the slot, avoiding the problem of traditional fixed handles obstructing pipeline connection operations, and also reducing the space occupied, making the operation of the hand-held high-pressure diaphragm pump more flexible in different scenarios.
[0034] In this embodiment, the cross-section of the support base 2 is "H" shaped. The high-pressure diaphragm pump body 1 is detachably installed on the top surface of the support base 2 by multiple fastening bolts, so that the support base 2 has good structural strength and stability, and can stably support the high-pressure diaphragm pump body 1. At the same time, the detachable installation method facilitates the maintenance, repair or replacement of the high-pressure diaphragm pump body 1, and also facilitates transportation and storage, improving the convenience and flexibility of equipment use.
[0035] like Figure 1 and Figure 2 As shown, the front end of the slide 221 is not connected to the outside. After the rotating shaft 32 slides to abut against the front wall of the slide 221, the rectangular rod 3 rotates to a vertical position and is locked in the upper through slot 23, so that the rectangular rod 3 has a clear limit during rotation, ensuring the stability of the gripping rod 31 when it is in a vertical state. This makes it easier and safer for the operator to hold the gripping rod 31 for handling operations, and avoids the handling effect being affected by the rectangular rod 3 not rotating into place or shaking.
[0036] like Figure 1 As shown, multiple support feet 20 are fixedly installed on the bottom of the support base 2, and anti-slip pads 21 are fixedly installed on the bottom end of the support feet 20, making the hand-held high-pressure diaphragm pump more stable when placed. The support feet 20 provide support and raise the pump body appropriately to facilitate air circulation at the bottom; the anti-slip pads 21 increase the friction with the ground and prevent the pump body from sliding due to vibration or external forces during operation, ensuring the safety and stability of the equipment during operation.
[0037] like Figure 1 and Figure 3 As shown, the grip lever 31 is integrally formed on the rectangular rod 3. Each corner of the grip lever 31 is provided with an arc-shaped surface 311, which enhances the firmness of the connection between the grip lever 31 and the rectangular rod 3, and prevents the connection from loosening or breaking due to frequent use. At the same time, the arc-shaped surface 311 conforms to the curve of the human hand, reducing the discomfort between the hand and the grip lever 31, improving the comfort of hand grip, and reducing the fatigue of the operator during the handling process.
[0038] Specifically, a slot 30 is provided on the front end of the rectangular rod 3, and a locking member 4 for limiting the rectangular rod 3 is provided on the side of the end rod of the support base 2. The locking member 4 includes a fixed seat 40 fixedly installed on the side of the end rod of the support base 2. A U-shaped groove 401 is provided in the fixed seat 40. A locking block 41 is rotatably connected between the left and right sides of the groove wall of the U-shaped groove 401 through a rotating shaft. The locking block 41 is engaged with the slot 30. Two symmetrical torsion springs 42 are also provided between the locking block 41 and the fixed seat 40 to reliably limit the rectangular rod 3 after it is stored. When the rectangular rod 3 is stored in the storage slot 22, the locking block 41 is engaged with the slot 30 under the action of the torsion spring 42, effectively preventing the rectangular rod 3 from accidentally sliding out. This ensures the stability of the handle in the stored state during the pump's movement or storage, and avoids the inconvenience or damage risk caused by handle shaking.
[0039] It is worth noting that a handle 43 is fixedly installed on the top surface of the locking block 41. The angle between the handle 43 and the locking block 41 is between 45° and 60°, which facilitates the operation of the locking block 41. The appropriate angle allows the operator to exert force more naturally and effortlessly when pressing or pulling the handle 43, making it easy to separate or engage the locking block 41 with the slot 30. This facilitates the storage or unfolding of the rectangular rod 3, improving the convenience of operation and the user experience.
[0040] When using the hand-held high-pressure diaphragm pump of this utility model, first check the support pads 20 and anti-slip pads 21 at the bottom of the support base 2 to ensure that the pump body is placed stably; if it needs to be moved, hold the handle 43 on the top surface of the locking block 41, overcome the force of the torsion spring 42, and rotate the locking block 41 to separate it from the locking groove 30 at the front end of the rectangular rod 3.
[0041] Next, pull the gripping rod 31 to drive the rectangular rod 3 to slide outward along the slide groove 221 in the storage groove 22. When the rotating shaft 32 slides to the front wall of the slide groove 221, rotate the rectangular rod 3 to make it vertical. At this time, the rectangular rod 3 is inserted into the upper through groove 23. Then release the locking block 41. The locking block 41 can abut against the side of the vertical rectangular rod 3. Then move the pump body through the gripping rod 31.
[0042] After reaching the working position, place the pump body stably, grasp the handle 43 again and rotate the locking block 41 to release the restriction on the rectangular rod 3. Slide the holding rod 31 and the rectangular rod 3 into the storage groove 221 along the slide groove 221. Release the handle 43, and the locking block 41 will re-engage with the slot 30 under the action of the torsion spring 42, completing the handle storage.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A hand-lifted high-pressure diaphragm pump comprising a high-pressure diaphragm pump body (1), characterized in that: The bottom of the high-pressure diaphragm pump body (1) is fixedly installed with a support base (2). The front and rear sides of the support base (2) are provided with a storage groove (22) in the end rods. The left and right sides of the storage groove (22) are provided with a sliding groove (221). The top wall of the end slot of the storage groove (22) is provided with an upper through groove (23). A rectangular rod (3) is slidably connected in the storage groove (22). Two symmetrical rotating shafts (32) are fixedly installed on the inner end rod of the rectangular rod (3). The rotating shaft (32) is located in the sliding groove (221) and is slidably connected to the sliding groove (221). The rotating shaft (32) is rotatably connected to the sliding groove (221). The rectangular rod (3) is engaged with the upper through groove (23). A gripping rod (31) is fixedly installed between the two rectangular rods (3).
2. The hand carried high pressure diaphragm pump of claim 1 wherein: The cross-section of the support base (2) is "H" shaped, and the high-pressure diaphragm pump body (1) is detachably installed on the top surface of the support base (2).
3. The hand carried high pressure diaphragm pump of claim 1 wherein: The front end of the slide (221) is not connected to the outside. After the rotating shaft (32) slides to abut against the front side wall of the slide (221), the rectangular rod (3) rotates to a vertical position and gets stuck in the upper through groove (23).
4. The hand carried high pressure diaphragm pump of claim 1 wherein: The bottom of the support base (2) is fixedly equipped with a plurality of support feet (20), and the bottom end of the support feet (20) is fixedly equipped with anti-slip pads (21).
5. The hand carried high pressure diaphragm pump of claim 1 wherein: The grip rod (31) is integrally formed on the rectangular rod (3), and each corner of the grip rod (31) is provided with an arc-shaped surface (311).
6. The hand carried high pressure diaphragm pump of claim 1 wherein: The front end of the rectangular rod (3) is provided with a slot (30), and the side of the end of the support base (2) is provided with a snap-fit (4) for limiting the rectangular rod (3).
7. The hand-operated high-pressure diaphragm pump according to claim 6, characterized in that: The snap-fit component (4) includes a fixed seat (40) fixedly installed on the side of the end rod of the support base (2). A U-shaped groove (401) is provided in the fixed seat (40). A snap-fit block (41) is rotatably connected between the left and right sides of the groove wall of the U-shaped groove (401) through a rotating shaft. The snap-fit block (41) is engaged with the groove (30). Two symmetrical torsion springs (42) are also provided between the snap-fit block (41) and the fixed seat (40).
8. The hand carried high pressure diaphragm pump of claim 7 wherein: A handle (43) is fixedly installed on the top surface of the card block (41), and the angle between the handle (43) and the card block (41) is between 45° and 60°.