Pneumatic air bag pump

Abstract

The utility model belongs to the field of pneumatic air bag pump installation structures, and particularly relates to a pneumatic air bag pump which comprises a pneumatic air bag pump body and an installation base, installation feet are welded to the bottom of the pneumatic air bag pump body and make contact with the installation base, a two-way screw rod is installed in the installation base through a bearing, and the two-way screw rod is in threaded connection with the installation base. And the threaded part of the two-way screw rod is connected with a moving block through a thread. According to the pneumatic air bag pump, the two-way screw rod is arranged in the mounting base used for being mounted on the pneumatic air bag pump body, the two-way screw rod can drive the two moving blocks through threads, and the locking pins on the tops of the moving blocks can move synchronously with the moving blocks and slide into the mounting feet of the pneumatic air bag pump body; therefore, the pneumatic air bag pump body can be disassembled and assembled on the mounting seat only by controlling the forward and reverse rotation of the two-way screw rod, and compared with a bolt mounting mode, the pneumatic air bag pump is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic bellows pump installation structures, in particular to a pneumatic bellows pump. Background Art

[0002] A pneumatic bellows pump is a pump that works on the pneumatic principle, also known as a pneumatic diaphragm pump. Its working principle is to use compressed air or gas to drive a diaphragm to realize the operation of the pump. For example, the invention application patent with application publication number CN112412732A proposes a bellows pump, including a pump housing, pump covers are installed on both sides of the pump housing, bellows are arranged on both sides of the pump housing, ventilation rods are arranged in both groups of bellows, ventilation sleeves are arranged on the ventilation rods, ventilation bases are connected to the ventilation sleeves, ventilation holes are arranged on both groups of bellows, an air valve is arranged in the pump housing, a center hole is arranged in the middle of the pump housing, a guide sleeve is arranged in the center hole, a bellows connecting rod is slidably connected to the guide sleeve, an inlet and outlet interface is arranged on the pump housing, and a one-way valve is arranged in the inlet and outlet interface.

[0003] However, most of the existing pneumatic bellows pumps are installed by bolts, which is inconvenient to disassemble and the bolts are easy to loosen in the later stage, thereby causing the bellows pump to be installed unstable. Therefore, it is necessary to improve it. Utility Model Content

[0004] The utility model aims to provide a pneumatic bellows pump, which solves the problem that the existing pneumatic bellows pumps are mostly installed by bolts, which is inconvenient to disassemble and the bolts are easy to loosen in the later stage, thereby causing the bellows pump to be unstable in installation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic bellows pump, comprising a pneumatic bellows pump body and a mounting seat, a mounting foot is welded to the bottom of the pneumatic bellows pump body, the mounting foot is in contact with the mounting seat, a bidirectional screw is installed inside the mounting seat through a bearing, the threaded portion of the bidirectional screw is threadedly connected to a moving block, a locking pin is fixedly connected to the upper end of the moving block, the locking pin passes through the mounting seat and is slidably connected to the mounting seat, the locking pin is slidably connected to the mounting foot, and an anti-loosening mechanism is arranged on the right side of the mounting seat.

[0006] Preferably, a ball bearing is provided at the bottom of the moving block, and the ball bearing is slidably connected to the inner surface of the mounting seat. The relative friction between the moving block and the mounting seat can be reduced by providing the ball bearing.

[0007] Preferably, a guide rod is fixedly connected to the inner bottom of the mounting seat, and the guide rod passes through the moving block and is slidably connected to the moving block. The setting of the guide rod has a certain guiding effect on the moving block.

[0008] Preferably, one end of the bidirectional screw located outside the mounting seat is fixedly connected with a knob, and the knob is made of plastic. The setting of the knob facilitates the rotation of the bidirectional screw.

[0009] Preferably, the anti-loosening mechanism comprises a bracket fixedly connected to the mounting seat, a positioning pin is slidably connected inside the bracket, one end of the positioning pin is plugged into the bidirectional screw, the other end of the positioning pin is fixedly connected to a connecting piece, a retaining ring is fixedly connected to the lower section of the pin body of the positioning pin, and a spring is sleeved on the outer side of the pin body of the positioning pin. By setting the anti-loosening mechanism, the bidirectional screw can be locked and fixed to prevent it from loosening.

[0010] Preferably, one end of the spring is fixedly connected to the retaining ring, and the other end of the spring is fixedly connected to the bracket. By setting the spring, the elastic force can act on the positioning pin through the retaining ring.

[0011] Preferably, a pull ring is fixedly connected to the upper end of the connecting piece, and the pull ring is made of stainless steel. The setting of the pull ring facilitates pulling the positioning pin.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model arranges a bidirectional screw inside a mounting base for mounting the pneumatic bellows pump body. The bidirectional screw can drive two moving blocks through threads, and the locking pins on the tops of the moving blocks move synchronously with the moving blocks and slide into the mounting feet of the pneumatic bellows pump body. In this way, the disassembly and assembly of the pneumatic bellows pump body on the mounting base can be completed by controlling the forward and reverse rotation of the bidirectional screw, which is more convenient than the bolt installation method.

[0014] 2. The utility model provides an anti-loosening mechanism on the outside of the mounting seat and above the bidirectional screw, wherein the positioning pin in the anti-loosening mechanism is inserted into the rod body of the bidirectional screw under the elastic force of the spring, thereby locking the bidirectional screw, thereby preventing the bidirectional screw from loosening and further ensuring the stability of the pneumatic bellows pump body after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A front cross-sectional view of a local structure;

[0017] Figure 3 For the utility model Figure 1 A three-dimensional enlarged view of the anti-loosening mechanism;

[0018] Figure 4 For the utility model Figure 1 Top view of the .

[0019] In the figure: 1. pneumatic bellows pump body; 2. mounting foot; 3. mounting seat; 4. bidirectional screw; 5. moving block; 6. locking pin; 7. ball bearing; 8. guide rod; 9. anti-loosening mechanism; 10. knob; 91. bracket; 92. positioning pin; 93. retaining ring; 94. spring; 95. connecting piece; 96. pull ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 , Figure 2 , Figure 4 A pneumatic bellows pump comprises a pneumatic bellows pump body 1 and a mounting seat 3. A mounting foot 2 is welded to the bottom of the pneumatic bellows pump body 1. The mounting foot 2 is in contact with the mounting seat 3. A bidirectional screw 4 is installed inside the mounting seat 3 through a bearing. The threaded portion of the bidirectional screw 4 is threadedly connected to a moving block 5. A locking pin 6 is fixedly connected to the upper end of the moving block 5. The locking pin 6 passes through the mounting seat 3 and is slidably connected to the mounting seat 3. The locking pin 6 is slidably connected to the mounting foot 2.

[0022] See also Figure 1 , Figure 2 , Figure 4 , a ball 7 is provided at the bottom of the moving block 5, and the ball 7 is slidably connected to the inner surface of the mounting seat 3. By providing the ball 7, the relative friction between the moving block 5 and the mounting seat 3 can be reduced. A guide rod 8 is fixedly connected to the inner bottom of the mounting seat 3, and the guide rod 8 penetrates the moving block 5 and is slidably connected to the moving block 5. The provision of the guide rod 8 has a certain guiding effect on the moving block 5. A knob 10 is fixedly connected to one end of the bidirectional screw 4 located on the outside of the mounting seat 3, and the knob 10 is made of plastic. The provision of the knob 10 facilitates the rotation of the bidirectional screw 4.

[0023] See also Figure 1-Figure 4The right side of the mounting seat 3 is provided with an anti-loosening mechanism 9. Through the setting of the anti-loosening mechanism 9, the bidirectional screw 4 can be locked and fixed to prevent it from loosening. The anti-loosening mechanism 9 includes a bracket 91 fixedly connected to the mounting seat 3. A positioning pin 92 is slidably connected inside the bracket 91. One end of the positioning pin 92 is plugged with the bidirectional screw 4. The other end of the positioning pin 92 is fixedly connected with a connecting piece 95. The upper end of the connecting piece 95 is fixedly connected with a pull ring 96, and the pull ring 96 is made of stainless steel. Through the setting of the pull ring 96, it is convenient to pull the positioning pin 92. The lower section of the pin body of the positioning pin 92 is fixedly connected with a retaining ring 93. The outer side of the pin body of the positioning pin 92 is sleeved with a spring 94. One end of the spring 94 is fixedly connected with the retaining ring 93, and the other end of the spring 94 is fixedly connected with the bracket 91. Through the setting of the spring 94, the elastic force can be applied to the positioning pin 92 through the retaining ring 93.

[0024] The specific implementation process of the utility model is as follows: when in use, first place the pneumatic bellows pump body 1 on the mounting seat 3, and the pneumatic bellows pump body 1 is supported by the mounting foot 2 at the bottom thereof, and then the connecting piece 95 is pulled upward by the pull ring 96, and the connecting piece 95 drives the positioning pin 92 to move upward, and the positioning pin 92 compresses the spring 94 through the retaining ring 93, at this time, the positioning pin 92 is separated from the bidirectional screw 4, thereby releasing the restriction on the bidirectional screw 4, and then the bidirectional screw 4 is rotated by the knob 10, and the moving block 5 moves relative to the bidirectional screw 4 through the relative thread movement between the moving block 5 and the bidirectional screw 4 And move towards each other, and then the locking pin 6 on the top of the moving block 5 slides into the mounting foot 2, locking and fixing the mounting foot 2, thereby completing the installation of the pneumatic bellows pump body 1. Similarly, the pneumatic bellows pump body 1 can be removed by rotating the knob 10 in the direction. In addition, after the pneumatic bellows pump body 1 is installed, it is necessary to loosen the pull ring 96, and the positioning pin 92 will be reset under the action of the spring 94, and inserted into the rod body of the bidirectional screw 4 to lock it, which can prevent the bidirectional screw 4 from loosening and further ensure the stability of the pneumatic bellows pump body 1 after installation.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic bellows pump, comprising a pneumatic bellows pump body (1) and a mounting seat (3), Features: A mounting foot (2) is welded to the bottom of the pneumatic bellows pump body (1), the mounting foot (2) is in contact with the mounting seat (3), a bidirectional screw (4) is installed inside the mounting seat (3) via a bearing, the threaded portion of the bidirectional screw (4) is threadedly connected to a moving block (5), the upper end of the moving block (5) is fixedly connected to a locking pin (6), the locking pin (6) passes through the mounting seat (3) and is slidably connected to the mounting seat (3), the locking pin (6) is slidably connected to the mounting foot (2), and an anti-loosening mechanism (9) is provided on the right side of the mounting seat (3).

2. A pneumatic bellows pump according to claim 1, Features: A ball bearing (7) is provided at the bottom of the moving block (5), and the ball bearing (7) is slidably connected to the inner surface of the mounting seat (3).

3. A pneumatic bellows pump according to claim 1, Features: A guide rod (8) is fixedly connected to the inner bottom of the mounting seat (3); the guide rod (8) passes through the moving block (5) and is slidably connected to the moving block (5).

4. A pneumatic bellows pump according to claim 1, Features: One end of the bidirectional screw rod (4) located outside the mounting seat (3) is fixedly connected to a knob (10), and the knob (10) is made of plastic.

5. A pneumatic bellows pump according to claim 1, Features: The anti-loosening mechanism (9) comprises a bracket (91) fixedly connected to the mounting seat (3), a positioning pin (92) is slidably connected inside the bracket (91), one end of the positioning pin (92) is plugged into the bidirectional screw (4), the other end of the positioning pin (92) is fixedly connected to a connecting piece (95), the lower section of the pin body of the positioning pin (92) is fixedly connected to a retaining ring (93), and a spring (94) is sleeved on the outer side of the pin body of the positioning pin (92).

6. A pneumatic bellows pump according to claim 5, Features: One end of the spring (94) is fixedly connected to the retaining ring (93), and the other end of the spring (94) is fixedly connected to the bracket (91).

7. A pneumatic bellows pump according to claim 5, Features: The upper end of the connecting piece (95) is fixedly connected with a pull ring (96), and the pull ring (96) is made of stainless steel.

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