Pump head locking mechanism with automatic reset function

Abstract

The utility model relates to the technical field of pump head self-locking mechanisms, in particular to a pump head locking mechanism with an automatic reset function, which comprises a connecting mechanism and a pump head which are arranged on a pump body, the connecting mechanism comprises a connecting seat, a sliding block and a reset spring, the connecting seat is rotatably arranged on the pump body, a sliding groove is arranged on the connecting seat, and the sliding block is arranged in the sliding groove. The sliding block is installed in the sliding groove in a sliding mode, and the sliding block is connected with the sliding groove through a reset spring. A base and a limiting plate are arranged at the bottom of the pump head, the base is rotationally connected with the limiting plate, a plurality of clamping blocks are arranged on the peripheral side of the limiting plate and connected with the limiting plate through elastic telescopic rods, and a plurality of clamping grooves corresponding to the clamping blocks are formed in the bottom of the connecting base. The connecting mechanism is arranged on the pump body and connected with the pump head, when the pressure is increased due to the fact that faults occur in the pump body, the pump head and the pump body are unlocked, high-pressure gas in the pump body is rapidly exhausted, explosion of the pump body is avoided, and the safety of the pump body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump head self -locking mechanism technical field, specifically a pump head locking mechanism with automatic reset function. BACKGROUND

[0002] The pump head locking mechanism is a key device for fixing the pump head (such as the pump head of a plunger pump or a diaphragm pump) and the pump body or driving component in a pump system, and its core function is to ensure that the pump head remains stable connection under vibration or frequent start-stop conditions, while providing the ability of quick installation, disassembly or emergency release.

[0003] In the prior art, the installation and unlocking scheme of the pump head is generally to press the edge of the pump head to be axially fixed through the clamping groove, protrusion and other elements on the shell, and then provide radial locking through locking screws, buckles and other ways, and the pump head needs to be manually removed after assembly, and when the air pressure in the pump body increases dramatically, the pump body and the pump head cannot be unlocked automatically, which can easily cause the pump body to explode and affect the use safety of the pump body. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pump head locking mechanism with automatic reset function to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A pump head locking mechanism with automatic reset function, comprising a connecting mechanism installed on a pump body and a pump head, the connecting mechanism comprising a connecting seat, a sliding block and a reset spring, the connecting seat being rotatably installed on the pump body, at least one sliding slot being formed in the connecting seat, the sliding block being slidably installed in the sliding slot, and the sliding block being connected to one end of the sliding slot through the reset spring; the bottom of the pump head being provided with a base and a limiting plate, the base being rotatably connected to the limiting plate, the limiting plate being provided with a plurality of clamping blocks on the circumferential side, the clamping blocks being connected to the limiting plate through elastic expansion rods, and the bottom of the connecting seat being provided with a plurality of clamping grooves corresponding to the clamping blocks.

[0007] As a further scheme of the utility model, a plug hole is formed in the sliding block, and a plug rod corresponding to the plug hole is formed in the bottom of the base.

[0008] As a further scheme of the utility model, a limiting tube is fixedly installed at the lower end of the limiting plate, and a limiting seat is arranged in the pump body, and the limiting seat is used to limit the rotation of the limiting tube.

[0009] As a further scheme of the utility model, a first through hole is formed in the sliding slot, a second through hole is formed in the outer side of the connecting seat, and the first through hole and the second through hole are communicated.

[0010] As a further improvement of this utility model, the second through hole is also connected to the interior of the pump body.

[0011] As a further improvement of this utility model: at least one sealing groove is provided on the connecting seat, and a sealing strip that cooperates with the sealing groove is provided inside the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model connects the pump head to the pump body by setting a connecting mechanism on the pump body. The connecting mechanism includes a connecting seat, a slider, and a return spring. A base and a limiting plate are set at the bottom of the pump head. Several locking blocks are set around the periphery of the limiting plate. When the pump head and pump body are assembled, the pump head is rotated to drive the base to rotate. The base controls the slider to slide along the slide groove, so that the slider pushes the connecting seat to rotate, making the locking groove and the locking block in the same position. Then, the locking block is locked into the locking groove. After assembly, the slider is reset under the pull of the return spring. When a fault occurs inside the pump body and the pressure increases, gas enters the slide groove through the second through hole and the first through hole. The high-pressure gas pushes the slider to move. When the slider moves to the other end of the slide groove, the high-pressure gas pushes the slider, and the slider pushes the connecting seat to rotate, so that the locking block and the locking groove are disengaged, thereby unlocking the pump head and pump body, thereby quickly expelling the high-pressure gas inside the pump body, avoiding pump body explosion, and improving pump body safety. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a pump head locking mechanism with an automatic reset function.

[0014] Figure 2 Schematic diagram of the connecting mechanism in the pump head locking mechanism with automatic reset function Figure One .

[0015] Figure 3 Schematic diagram of the connecting mechanism in the pump head locking mechanism with automatic reset function Figure Two .

[0016] Figure 4 This is a top view of the connecting mechanism in the pump head locking mechanism with automatic reset function.

[0017] Figure 5 This is a schematic diagram of the pump head in a pump head locking mechanism with automatic reset function.

[0018] In the diagram: 10-Pump body, 11-Limit seat, 20-Connecting mechanism, 21-Connecting seat, 22-Slide groove, 23-Slider, 24-Reset spring, 25-Slot, 26-First through hole, 27-Second through hole, 28-Sealing groove, 30-Pump head, 31-Base, 32-Limit plate, 33-Card block, 34-Elastic telescopic rod, 35-Insertion rod, 36-Sealing strip, 37-Limit tube. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0020] Please see Figures 1-5 In this embodiment of the present invention, a pump head locking mechanism with an automatic reset function includes a connecting mechanism 20 and a pump head 30 mounted on a pump body 10. The connecting mechanism 20 includes a connecting seat 21, a slider 23, and a reset spring 24. The connecting seat 21 is rotatably mounted on the pump body 10, and at least one sliding groove 22 is provided on the connecting seat 21. The slider 23 is slidably mounted inside the sliding groove 22, and the slider 23 is connected to one end of the sliding groove 22 through the reset spring 24. The bottom of the pump head 30 is provided with a base 31 and a limiting plate 32. The base 31 and the limiting plate 32 are connected to each other. The plate 32 is rotatably connected, and several locking blocks 33 are provided on the periphery of the limiting plate 32. The locking blocks 33 are connected to the limiting plate 32 through elastic telescopic rods 34. Several slots 25 corresponding to the locking blocks 33 are opened at the bottom of the connecting seat 21. When the pump head 30 is assembled with the pump body 10, the base 31 is rotated by rotating the pump head 30. The base 31 controls the slider 23 to slide along the slide groove 22, so that the slider 23 pushes the connecting seat 21 to rotate, so that the slots 25 and the locking blocks 33 are in the same position. Then, the locking blocks 33 are inserted into the slots 25 to complete the assembly of the pump head 30 and the pump body 10.

[0021] Furthermore, in this embodiment, the slider 23 is provided with an insertion hole, and the bottom of the base 31 is provided with a corresponding insertion rod 35. When the pump head 30 is assembled with the pump body 10, the insertion rod 35 is inserted into the insertion hole. When the base 31 rotates, it drives the slider 23 to slide along the slide groove 22. When the slider 23 moves to the other end of the slide groove 22, the base 31 continues to rotate, and the slider 23 pushes the connecting seat 21 to rotate. After the pump head 30 and the pump body 10 are assembled, the slider 23 is reset under the pull of the return spring 24.

[0022] It should be noted that, in this embodiment of the application, a limiting tube 37 is fixedly installed at the lower end of the limiting plate 32, and a limiting seat 11 is provided inside the pump body 10. The limiting seat 11 is used to restrict the rotation of the limiting tube 37. When the pump head 30 is assembled with the pump body 10, the limiting tube 37 is inserted into the limiting seat 11. The limiting tube 37 and the limiting plate 32 remain stationary during the assembly of the pump head 30 and the pump body 10.

[0023] In this embodiment, a first through hole 26 is provided inside the slide groove 22, and a second through hole 27 is provided on the outside of the connecting seat 21. The first through hole 26 and the second through hole 27 are connected. The second through hole 27 is also connected to the inside of the pump body 10. It can be understood that after assembly, when a malfunction occurs inside the pump body 10 and the pressure increases, gas enters the slide groove 22 along the second through hole 27 and the first through hole 26. The high-pressure gas pushes the slider 23 to move. When the slider 23 moves to the other end of the slide groove 22, the high-pressure gas pushes the slider 23, and the slider 23 pushes the connecting seat 21 to rotate, causing the locking block 33 to disengage from the locking groove 25, thereby unlocking the pump head 30 from the pump body 10, thereby quickly discharging the high-pressure gas inside the pump body 10 and preventing the pump body 10 from exploding.

[0024] It should be noted that, in this embodiment of the application, at least one sealing groove 28 is provided on the connecting seat 21, and a sealing strip 36 that cooperates with the sealing groove 28 is provided inside the base 31. After the pump head 30 and the pump body 10 are assembled, the sealing strip 36 is inserted into the sealing groove 28. After unlocking, the high-pressure gas pushes the pump head 30 to move, and the sealing strip 36 separates from the sealing groove 28.

[0025] In summary, this utility model connects the pump head to the pump body via a connecting mechanism. The connecting mechanism includes a connecting seat, a slider, and a return spring. A base and a limiting plate are located at the bottom of the pump head, with several locking blocks around the periphery of the limiting plate. When the pump head and pump body are assembled, rotating the pump head rotates the base, which in turn controls the slider to slide along a groove. This causes the slider to push the connecting seat to rotate, aligning the locking slot and the locking block in the same position. The locking block then engages with the groove. After assembly, the slider resets under the pull of the return spring. When a malfunction occurs inside the pump body, causing increased pressure, gas enters the groove through the second and first through holes. The high-pressure gas pushes the slider to move. When the slider reaches the other end of the groove, the high-pressure gas pushes the slider, which in turn pushes the connecting seat to rotate, causing the locking block to disengage from the groove. This unlocks the pump head from the pump body, quickly releasing the high-pressure gas inside the pump body, preventing pump explosion and improving pump safety.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pump head locking mechanism with automatic reset function, characterized in that, The utility model provides a pump head (30) and connecting mechanism (20) are installed on the pump body (10), connecting mechanism (20) includes connecting seat (21), slider (23) and reset spring (24), connecting seat (21) is rotatably installed on the pump body (10), and at least one slide groove (22) is formed in connecting seat (21), slider (23) is slidably installed in the slide groove (22), and slider (23) is connected with one end of the slide groove (22) through reset spring (24), the bottom of pump head (30) is provided with base (31) and limiting plate (32), base (31) is rotatably connected with limiting plate (32), and the circumferential side of limiting plate (32) is provided with a plurality of clamping blocks (33), the clamping block (33) is connected with the limiting plate (32) through the elastic telescopic rod (34), and the bottom of connecting seat (21) is provided with a plurality of clamping grooves (25) corresponding to the clamping block (33).

2. The pump head locking mechanism with automatic reset function according to claim 1, characterized in that, The slider (23) is provided with a hole, and the bottom of the base (31) is provided with a plug rod (35) corresponding to the hole.

3. The pump head locking mechanism with automatic reset function according to claim 1, wherein, The lower end of the limiting plate (32) is fixedly provided with a limiting tube (37), and the inside of the pump body (10) is provided with a limiting seat (11) for limiting the rotation of the limiting tube (37).

4. The pump head locking mechanism with automatic reset function according to claim 1, wherein, The inside of the slide groove (22) is provided with a first through hole (26), and the outside of the connecting seat (21) is provided with a second through hole (27), and the first through hole (26) and the second through hole (27) are communicated.

5. The pump head locking mechanism with automatic reset function according to claim 4, characterized in that, The second through hole (27) is also communicated with the inside of the pump body (10).

6. The pump head locking mechanism with automatic reset function according to claim 5, characterized in that, The connecting seat (21) is provided with at least one sealing groove (28), and the inside of the base (31) is provided with a sealing strip (36) matched with the sealing groove (28).

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