Mute cup type oil cylinder plunger pump

Abstract

The invention relates to the technical field of oil cylinder plunger pumps, and discloses a mute cup type oil cylinder plunger pump which comprises a plunger pump body. A supporting plate is arranged below the plunger pump body, and the bottom face of the plunger pump body makes contact with the top face of the supporting plate. Two annular sleeves are arranged on the surface of the plunger pump body in a contact mode, the inner walls of the annular sleeves are in threaded connection with the inner wall of the supporting plate through bolts, and a damping assembly is arranged below the supporting plate. The damping effect on the supporting plate is achieved through the damping performance of the damping assembly, the damping performance of the damper and the acting force of the first spring, so that vibration generated when the plunger pump body works is reduced, and then noise generated by vibration is reduced; noise absorption is conducted on generated noise through the mute assembly, the sound absorption cotton frame and the sound absorption cotton plate, the situation that the noise is too large and influences the surrounding environment and people is avoided, meanwhile, the lower mute cup frame and the upper mute cup frame are connected together, and the sound absorption cotton frame and the sound absorption cotton plate conduct full noise reduction and sound absorption on the plunger pump body.

Description

Technical Field

[0001] The invention relates to the technical field of oil cylinder plunger pumps, in particular to a silent cup type oil cylinder plunger pump. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation.

[0003] According to a silent cup type oil cylinder plunger pump issued by a Chinese patent, the publication number is CN221120263U, including the technical field of oil cylinder plunger pump, solving the current technical problem that when the oil cylinder plunger pump and the silent cup cover form a whole, it is not conducive to replacing and repairing the silent cup cover, and secondly, when the silent cup cover is placed inside the plunger pump body, it is easy to cause the silent cup cover to soften, affecting the noise reduction effect of the oil cylinder plunger pump; including a silent cup cover, the internal fixed sleeve of the silent cup cover is connected with the plunger pump body, the interior of the silent cup cover is provided with four fixing screws, and the plunger pump body is fixed inside the silent cup cover by the four fixing screws; this scheme has the function of elastically pressing the silent cup cover downward, so that the silent cup cover is sealed with the silent bottom plate, so that the plunger pump body is fully noise-reduced and sound-absorbed, avoiding the silent cup cover from being thermally softened, and avoiding the gap between the silent cup cover and the silent bottom plate caused by vibration during use, resulting in noise leakage; In the device, the silent cup cover is elastically pressed down, so that the silent cup cover is sealed with the silent bottom plate, so that the plunger pump body is fully noise-reduced and sound-absorbed. However, the existing device still has the following problems: the plunger pump body will vibrate when working, thereby generating sound, and the vibration of the plunger pump body will drive the silent bottom plate and the silent cup cover to vibrate, resulting in noise. Therefore, a silent cup type oil cylinder plunger pump is proposed. Summary of the invention

[0004] The object of the present invention is to provide a silent cup-type cylinder plunger pump to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a silent cup-type cylinder plunger pump, comprising a plunger pump body; A support plate is provided below the plunger pump body, and the bottom surface of the plunger pump body contacts the top surface of the support plate; Two annular sleeves are provided on the surface of the plunger pump body, and the inner wall of the annular sleeve is threadedly connected with the inner wall of the support plate through bolts, and a shock absorbing assembly is provided under the support plate; A silent component is arranged on the surface of the plunger pump body.

[0006] Preferably, the shock absorbing assembly includes a lower silent cup frame, a first sliding rod and two sliding blocks are arranged inside the lower silent cup frame, the two sliding blocks are symmetrically arranged, the right end face of the first sliding rod slides through the left sides of the two sliding blocks and extends to the right sides of the two sliding blocks, the left and right end faces of the first sliding rod are respectively fixedly connected to the inner side faces of the lower silent cup frame, the bottom surface of the sliding block is slidably connected to the inner side faces of the lower silent cup frame, the surface of the first sliding rod is fixedly sleeved with two first springs, the left and right end faces of the two first springs are respectively fixedly connected to the inner side faces of the lower silent cup frame and the left side faces of the sliding block, the top surface of the sliding block is fixedly connected with an inclined block, the bottom surface of the supporting plate is fixedly connected with a trapezoidal block, the left and right sides of the trapezoidal block are both set as inclined surfaces adapted to the inclined blocks, the left and right sides of the trapezoidal block are respectively extruded and slidably connected with the close surfaces of the two inclined blocks, the inner bottom surface of the lower silent cup frame is fixedly connected with a damper, the top end face of the damper output rod is fixedly connected to the bottom surface of the supporting plate, the damping property of the damper itself and the action force of the first spring have a shock absorbing effect on the supporting plate, thereby reducing the noise generated by the vibration of the plunger pump body.

[0007] Preferably, the side surface of the support plate is slidably connected to the inner side surface of the lower silent cup frame, and four dampers are provided, which have a shock-absorbing effect on the support plate.

[0008] Preferably, the bottom surface of the lower silent cup frame is fixedly connected to a bottom plate, the front and rear sides of the bottom plate are fixedly connected to connecting ring plates, and the top surface of the connecting ring plate is provided with mounting holes, so that the connecting ring plate is used to facilitate the installation of the bottom plate.

[0009] Preferably, the silent component includes an upper silent cup frame, the top surface of the upper silent cup frame is fixedly connected to a top plate, the top surface of the bottom plate is fixedly connected to a second sliding rod, the top end surface of the second sliding rod slides through the bottom surface of the top plate and extends to above the top plate, four second sliding rods are provided, a second spring is sleeved on the surface of the second sliding rod, the upper and lower end surfaces of the second spring are respectively fixedly connected to the bottom surface of the top plate and the top surface of the bottom plate, the inner side surface of the upper silent cup frame is fixedly connected to a sound-absorbing cotton frame, the right side surface of the lower silent cup frame is provided with a vent, the inner side surface of the vent is fixedly connected to a sound-absorbing cotton board, the sound-absorbing cotton board and the sound-absorbing cotton frame can reduce the noise generated by the plunger pump body.

[0010] Preferably, a filter screen is arranged on the right side of the sound-absorbing cotton board, and the side surface of the filter screen is fixedly connected to the inner side surface of the vent, and the filter screen prevents dust and impurities from entering the vent.

[0011] Preferably, four connecting blocks are fixedly connected to the bottom surface of the upper silent cup frame, and four sliding grooves compatible with the connecting blocks are opened on the top surface of the lower silent cup frame. The bottom end surfaces of the four connecting blocks slide through the top surface of the lower silent cup frame and extend into the sliding grooves. The connecting blocks and the sliding grooves facilitate the mutual connection between the upper silent cup frame and the lower silent cup frame.

[0012] Preferably, a handle is provided above the top plate, and the bottom surface of the handle is fixedly connected to the top surface of the top plate, so that the top plate and the upper silent cup frame can be easily pulled up by using the handle.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The silent cup-type oil cylinder plunger pump has a shock-absorbing effect on the support plate through the shock-absorbing component, the damping property of the damper itself and the action force of the first spring, thereby reducing the vibration generated by the plunger pump body when working, and further reducing the noise generated by the vibration; 2. The silent cup type oil cylinder plunger pump absorbs the noise generated by the silent component, the sound-absorbing cotton frame and the sound-absorbing cotton board to prevent the excessive noise from affecting the surrounding environment and people. At the same time, the lower silent cup frame and the upper silent cup frame are connected together, so that the sound-absorbing cotton frame and the sound-absorbing cotton board can fully reduce the noise and absorb the sound of the plunger pump body; 3. The silent cup-type oil cylinder plunger pump can fix the plunger pump body on the support plate through the annular sleeve and bolts, so as to prevent the plunger pump body from sliding off the support plate due to vibration, thereby improving the stability of the plunger pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded perspective view of the whole front of the present invention; Figure 2 It is the overall main stereoscopic diagram of the present invention; Figure 3 It is a front cutaway stereoscopic view of the present invention; Figure 4 It is a right side stereogram of the annular sleeve of the present invention; Figure 5 It is a left side sectional perspective view of the second sliding rod of the present invention; Figure 6 For the present invention Figure 3 Enlarged stereogram of area A in the middle.

[0015] In the figure: plunger pump body 1, support plate 2, annular sleeve 3, shock absorbing assembly 41, lower silent cup frame 411, trapezoidal block 412, first slide bar 413, slider 414, first spring 415, inclined block 416, damper 417, bottom plate 418, connecting ring plate 419, silent assembly 42, sound-absorbing cotton frame 421, top plate 422, upper silent cup frame 423, second slide bar 424, second spring 425, connecting block 426, handle 427, sound-absorbing cotton board 428, filter screen 429. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figure 1 - Figure 6 , the present invention provides a technical solution: a silent cup-type oil cylinder plunger pump, comprising a plunger pump body 1; A support plate 2 is provided below the plunger pump body 1, and the bottom surface of the plunger pump body 1 contacts the top surface of the support plate 2; Two annular sleeves 3 are provided on the surface of the plunger pump body 1. The inner wall of the annular sleeve 3 is threadedly connected with the inner wall of the support plate 2 through bolts. The annular sleeve 3 and the bolts are used to fix the plunger pump body 1 on the support plate 2 to prevent the plunger pump body 1 from sliding off the support plate 2 due to vibration, thereby improving the stability of the plunger pump body 1. A shock absorbing assembly 41 is provided below the support plate 2; A silent component 42 is provided on the surface of the plunger pump body 1 .

[0018] The shock absorbing assembly 41 includes a lower silent cup frame 411, and a first sliding rod 413 and two sliding blocks 414 are arranged inside the lower silent cup frame 411. The two sliding blocks 414 are symmetrically arranged. The right end face of the first sliding rod 413 slides through the left sides of the two sliding blocks 414 and extends to the right sides of the two sliding blocks 414. The left and right end faces of the first sliding rod 413 are respectively fixedly connected to the inner side faces of the lower silent cup frame 411, and the bottom face of the sliding block 414 is slidably connected to the inner side faces of the lower silent cup frame 411. Two first springs 415 are fixedly sleeved on the surface of the first sliding rod 413. The left and right end faces of the two first springs 415 are respectively fixedly connected to the inner side face of the lower silent cup frame 411 and the left side face of the sliding block 414. The top surface of the slider 414 is fixedly connected to an inclined block 416, and the bottom surface of the support plate 2 is fixedly connected to a trapezoidal block 412. The left and right sides of the trapezoidal block 412 are set as inclined surfaces compatible with the inclined blocks 416. The left and right sides of the trapezoidal block 412 are respectively squeezed and slidably connected with the close surfaces of the two inclined blocks 416. The inner bottom surface of the lower silent cup frame 411 is fixedly connected to a damper 417, and the top end surface of the output rod of the damper 417 is fixedly connected to the bottom surface of the support plate 2. Through the shock absorbing assembly 41, the damping property of the damper 417 itself and the force of the first spring 415 have a shock absorbing effect on the support plate 2, thereby reducing the vibration generated by the plunger pump body 1 during operation, and then reducing the noise generated by the vibration.

[0019] The side surface of the support plate 2 is slidably connected to the inner side surface of the lower silent cup frame 411 , and four dampers 417 are provided.

[0020] The bottom surface of the lower silent cup frame 411 is fixedly connected to a bottom plate 418, and the front and rear sides of the bottom plate 418 are fixedly connected to a connecting ring plate 419. A mounting hole is formed through the top surface of the connecting ring plate 419. The bottom plate 418 is installed using the mounting hole and the connecting ring plate 419, and the lower silent cup frame 411 is fixed at the same time.

[0021] Embodiment 2: Based on Embodiment 1, a preferred embodiment of a silent cup-type cylinder plunger pump provided by the present invention is as follows: Figure 1 - Figure 3 and Figure 5 As shown: the mute component 42 includes an upper mute cup frame 423, the top surface of the upper mute cup frame 423 is fixedly connected to the top plate 422, the top surface of the bottom plate 418 is fixedly connected to the second slide bar 424, the top surface of the second slide bar 424 slides through the bottom surface of the top plate 422 and extends to the top of the top plate 422, four second slide bars 424 are provided, the surface of the second slide bar 424 is sleeved with a second spring 425, the upper and lower end surfaces of the second spring 425 are respectively fixedly connected to the bottom surface of the top plate 422 and the top surface of the bottom plate 418, and the upper mute cup frame 423 is provided with a second spring 425. A sound-absorbing cotton frame 421 is fixedly connected to the side, a vent is opened through the right side of the lower silent cup frame 411, and a sound-absorbing cotton board 428 is fixedly connected to the inner side of the vent. The noise generated is absorbed by the silent component 42, the sound-absorbing cotton frame 421 and the sound-absorbing cotton board 428 to prevent excessive noise from affecting the surrounding environment and people. At the same time, the lower silent cup frame 411 and the upper silent cup frame 423 are connected together, so that the sound-absorbing cotton frame 421 and the sound-absorbing cotton board 428 can fully reduce and absorb the noise of the plunger pump body 1.

[0022] A filter screen 429 is arranged on the right side of the sound-absorbing cotton board 428, and the side of the filter screen 429 is fixedly connected to the inner side of the vent. The heat generated when the plunger pump body 1 is running is dissipated through the vent. The filter screen 429 effectively prevents dust and impurities from entering the vent.

[0023] Four connecting blocks 426 are fixedly connected to the bottom surface of the upper silent cup frame 423, and four sliding grooves compatible with the connecting blocks 426 are opened on the top surface of the lower silent cup frame 411. The bottom end surfaces of the four connecting blocks 426 slide through the top surface of the lower silent cup frame 411 and extend to the inside of the sliding groove. The upper silent cup frame 423 drives the connecting blocks 426 to slide downward into the inside of the sliding groove, making the connection and positioning between the lower silent cup frame 411 and the upper silent cup frame 423 more accurate.

[0024] A handle 427 is provided above the top plate 422 , and the bottom surface of the handle 427 is fixedly connected to the top surface of the top plate 422 .

[0025] During installation, the handle 427 is pulled upward, and the handle 427 drives the top plate 422 to move upward, so that the top plate 422 drives the upper silent cup frame 423 to move upward, and the upper silent cup frame 423 pulls the second spring 425, and the plunger pump body 1 is placed on the support plate 2, and the plunger pump body 1 is fixed on the support plate 2 by using the annular sleeve 3 and bolts, and the handle 427 is released. The force of the second spring 425 drives the upper silent cup frame 423 to move downward, so that the upper silent cup frame 423 drives the connecting block 426 to slide downward into the inside of the slide groove; When the plunger pump body 1 is running, the plunger pump body 1 vibrates and drives the support plate 2 to vibrate. The support plate 2 squeezes the damper 417 and the trapezoidal block 412. The trapezoidal block 412 pushes the inclined block 416 downward, so that the inclined block 416 drives the slider 414 to slide on the first slide bar 413. The first slide bar 413 squeezes the first spring 415. The damping property of the damper 417 itself and the action force of the first spring 415 have a shock-absorbing effect on the support plate 2, thereby reducing the vibration generated by the operation of the plunger pump body 1, and further reducing the noise generated by the vibration. The noise generated when the plunger pump body 1 is in operation is absorbed by the sound-absorbing cotton frame 421 and the sound-absorbing cotton board 428. At the same time, the sealing of the lower silent cup frame 411 and the upper silent cup frame 423 reduces the diffusion of the noise.

[0026] 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 silent cup-type oil cylinder plunger pump, comprising a plunger pump body (1); A support plate (2) is provided below the plunger pump body (1), and the bottom surface of the plunger pump body (1) is in contact with the top surface of the support plate (2); The plunger pump body (1) is provided with two annular sleeves (3) in contact with the surface thereof, and the inner wall of the annular sleeve (3) is threadedly connected to the inner wall of the support plate (2) via bolts, and is characterized in that: A shock absorbing assembly (41) is provided below the support plate (2); A silencer component (42) is provided on the surface of the plunger pump body (1).

2. A silent cup cylinder plunger pump according to claim 1, characterized in that: The shock absorbing assembly (41) comprises a lower silent cup frame (411), wherein a first sliding rod (413) and two sliding blocks (414) are arranged inside the lower silent cup frame (411), wherein the two sliding blocks (414) are symmetrically arranged, wherein the right end surface of the first sliding rod (413) slides through the left sides of the two sliding blocks (414) and extends to the right sides of the two sliding blocks (414), wherein the left and right end surfaces of the first sliding rod (413) are respectively fixedly connected to the inner side surfaces of the lower silent cup frame (411), and the bottom surfaces of the sliding blocks (414) are slidably connected to the inner side surfaces of the lower silent cup frame (411), and wherein two first springs (415) are fixedly sleeved on the surface of the first sliding rod (413), and the two first springs (415) are fixedly sleeved on the surface of the first sliding rod (413), and the two first springs (415) are fixedly sleeved on the surface of the first sliding rod (413). The left and right end surfaces of the first spring (415) are respectively fixedly connected to the inner side surface of the lower silent cup frame (411) and the left side surface of the slider (414); the top surface of the slider (414) is fixedly connected to an inclined block (416); the bottom surface of the support plate (2) is fixedly connected to a trapezoidal block (412); the left and right side surfaces of the trapezoidal block (412) are both arranged as inclined surfaces that match the inclined blocks (416); the left and right side surfaces of the trapezoidal block (412) are respectively extruded and slidably connected to the adjacent surfaces of the two inclined blocks (416); the inner bottom surface of the lower silent cup frame (411) is fixedly connected to a damper (417); the top end surface of the output rod of the damper (417) is fixedly connected to the bottom surface of the support plate (2).

3. A silent cup cylinder plunger pump according to claim 2, characterized in that: The side surface of the support plate (2) is slidably connected to the inner side surface of the lower silent cup frame (411), and four dampers (417) are provided.

4. A silent cup cylinder plunger pump according to claim 2, characterized in that: The bottom surface of the lower silent cup frame (411) is fixedly connected to a bottom plate (418), the front and rear side surfaces of the bottom plate (418) are fixedly connected to connecting ring plates (419), and the top surface of the connecting ring plate (419) is provided with a mounting hole.

5. The silent cup cylinder plunger pump according to claim 4, characterized in that: The mute component (42) comprises an upper mute cup frame (423), the top surface of the upper mute cup frame (423) is fixedly connected to a top plate (422), the top surface of the bottom plate (418) is fixedly connected to a second slide rod (424), the top surface of the second slide rod (424) slides through the bottom surface of the top plate (422) and extends to the top of the top plate (422), four second slide rods (424) are provided, the surface of the second slide rod (424) is sleeved with a second spring (425), the upper and lower end surfaces of the second spring (425) are respectively fixedly connected to the bottom surface of the top plate (422) and the top surface of the bottom plate (418), the inner side surface of the upper mute cup frame (423) is fixedly connected to a sound-absorbing cotton frame (421), and the right side surface of the lower mute cup frame (411) is provided with a vent, and the inner side surface of the vent is fixedly connected to a sound-absorbing cotton board (428).

6. The silent cup cylinder plunger pump according to claim 5, characterized in that: A filter screen (429) is provided on the right side of the sound-absorbing cotton board (428), and a side surface of the filter screen (429) is fixedly connected to an inner side surface of the vent.

7. The silent cup cylinder plunger pump according to claim 5, characterized in that: The bottom surface of the upper silent cup frame (423) is fixedly connected with four connecting blocks (426), and the top surface of the lower silent cup frame (411) is provided with four sliding grooves adapted to the connecting blocks (426). The bottom end surfaces of the four connecting blocks (426) slide through the top surface of the lower silent cup frame (411) and extend into the interior of the sliding grooves.

8. The silent cup cylinder plunger pump according to claim 5, characterized in that: A handle (427) is provided above the top plate (422), and the bottom surface of the handle (427) is fixedly connected to the top surface of the top plate (422).

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