Disassembling tool for one-way valve of pump

Abstract

The utility model relates to the technical field of one-way valve dismounting, in particular to a pump one-way valve dismounting tool which comprises a threaded sleeve, a main shaft and an auxiliary mechanism, a driven gear is arranged on the outer side of the threaded sleeve, an outer sleeve is arranged at one end of the threaded sleeve, a plurality of through grooves are formed in one end of the outer sleeve, and one end of the outer sleeve and one end of the main shaft are both conical. The auxiliary mechanism comprises a rotating disc, a driving gear and a C-shaped plate, the length of the driving gear is the same as that of the thread on the main shaft, and the number of outer teeth of the driven gear is three times that of the outer teeth of the driving gear. The transmission mode that the pinion drives the large gear is adopted, so that the labor-saving effect can be achieved, the driving gear can be conveniently rotated through the rotating disc, and then the hands of an operator are not prone to being rubbed and injured.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valve disassembly, in particular to a disassembly tool for a pump one-way valve. Background Art

[0002] A one-way valve, also known as a check valve or non-return valve, is used in a hydraulic system to prevent the reverse flow of oil or in a pneumatic system to prevent the reverse flow of compressed air. At present, in high-pressure piston pumps and hydraulic systems, a large number of small one-way valves are installed. The one-way valve body is embedded in the equipment body. Due to the small size and compact structure of the equipment body and the lack of a force-bearing point on the one-way valve body, there is currently no good method or tool to easily disassemble it. Generally, traditional destructive methods such as knocking and hard prying are used to take it out, which not only causes damage to the one-way valve body but also damages the equipment body, resulting in low efficiency. In view of the deficiencies of the prior art, there is also a tool on the market for disassembling the inserted one-way valve of a hydraulic valve block. It includes a screw with a frustum-shaped bottom, an open-type screw sleeve sleeved on the screw, and a gland installed on the upper part of the screw sleeve. A nut is installed on the upper part of the screw adjacent to the gland. When in use, the bottom of the screw is inserted and fixed on the one-way valve, and then the gland is pressed against the support sleeve. By screwing the screw in and out, the bottom of the screw is tightened on the one-way valve and then the one-way valve is taken out. However, the one-way valve disassembly tool of the prior art has the following defects: First, a support sleeve must be used. When in use, it is necessary to fix the support sleeve outside the one-way valve installation port or inside the gland first. The operation is troublesome, and due to the large insertion and extraction force of the one-way valve, the pressing force of the gland on the support sleeve is also large. Frequent disassembly and assembly of the one-way valve easily cause the support sleeve to loosen or deform, with poor practicability and complex structure. Second, the screw sleeve is of an open-type structure. When the extrusion force of the screw is large, the screw sleeve is prone to deformation or even loosen from the screw after expansion, making it inconvenient to use.

[0003] The prior art patent CN202684829U discloses a one-way valve disassembly device, which includes a main shaft with an end inclined outward, and an outer sleeve sleeved on the main shaft. The front end of the main shaft is provided with a thread, a nut is arranged on the upper part of the front end of the main shaft and located outside the outer sleeve, and a pulling member is connected to the front end of the main shaft. When in use, select a disassembly device with a suitable inner hole specification of the one-way valve, insert the end of the main shaft into the inner hole of the one-way valve seat, screw the nut downward to push the outer sleeve downward. Due to the end of the main shaft being inclined outward, the bottom of the outer sleeve expands outward and tightly locks the inner hole of the one-way valve seat. Relying on friction, the prior art can firmly grasp the one-way valve seat. By pulling the pulling member forcefully, the one-way valve seat can be pulled out, and the one-way valve seat can be disassembled without damage, easily and quickly. The prior art has the advantages of simple structure, convenient use, low manufacturing cost, and strong practicability.

[0004] However, in the above-mentioned prior art, when the outer sleeve gradually expands, the rotation of the nut becomes very difficult. As a result, the operator needs to increase the grasping force and rotational force on the nut, which is likely to cause friction injuries to the operator's hands. Summary of the Invention

[0005] The purpose of the present utility model is to provide a disassembly tooling for a pump check valve, aiming to solve the technical problem in the prior art that when the outer sleeve gradually expands, the rotation of the nut becomes very difficult. As a result, the operator needs to increase the grasping force and rotational force on the nut, which is likely to cause friction injuries to the operator's hands.

[0006] To achieve the above purpose, a disassembly tooling for a pump check valve adopted by the present utility model includes a threaded sleeve, a main shaft, and an auxiliary mechanism. A driven gear is arranged on the outer side of the threaded sleeve. One end of the threaded sleeve is provided with an outer sleeve. One end of the outer sleeve has a plurality of through grooves, and one end of the outer sleeve and one end of the main shaft are both conically arranged. The main shaft has threads. The other end of the main shaft is provided with a support plate. The threaded sleeve is threadedly connected to the main shaft and sleeved on the threaded portion. The auxiliary mechanism includes a rotating disc, a driving gear, and a C-shaped plate. The length of the driving gear is the same as the length of the threaded portion on the main shaft. The number of outer teeth of the driven gear is 3 times the number of outer teeth of the driving gear. A rotating shaft is arranged on the driving gear. The rotating disc is fixedly connected to the rotating shaft and is located at one end of the rotating shaft. The rotating shaft is rotatably connected to the C-shaped plate and is located inside the C-shaped plate. The driving gear is in transmission connection with the driven gear and is located above the driven gear. The C-shaped plate is fixedly connected to the support plate and is located above the support plate.

[0007] Wherein, a plurality of rotating rods are arranged on the outer side of the rotating disc.

[0008] Wherein, two limiting rings are arranged on the rotating shaft, and the limiting rings are also located inside the C-shaped plate.

[0009] Wherein, the disassembly tooling for the pump check valve further includes a holding mechanism, and the holding mechanism is fixedly connected to the support plate and is located below the support plate.

[0010] Wherein, the disassembly tooling for the pump check valve further includes a pulling ring, and the pulling ring is fixedly connected to the support plate and is located on the end face of the support plate away from the main shaft.

[0011] Among them, the holding mechanism includes a knob, a screw, an anti-slip sleeve, and a grip. One end of the grip has a threaded groove. The knob is fixedly connected to the screw and is located at one end of the screw. The screw is threadedly connected to the grip and is located in the threaded groove. The anti-slip sleeve is sleeved on the grip, and the knob abuts against the anti-slip sleeve and is located at one end of the anti-slip sleeve. The grip is fixedly connected to the support plate and is located below the support plate.

[0012] A disassembly tool for a pump check valve of the present utility model includes a threaded sleeve, a main shaft, and an auxiliary mechanism. A driven gear is arranged on the outer side of the threaded sleeve. One end of the threaded sleeve is provided with an outer sleeve. One end of the outer sleeve has a plurality of through grooves, and one end of the outer sleeve and one end of the main shaft are both conically arranged. The main shaft has a thread, and the other end of the main shaft is provided with a support plate. The threaded sleeve is threadedly connected to the main shaft and is sleeved on the thread. The auxiliary mechanism includes a rotating disk, a driving gear, and a C-shaped plate. The length of the driving gear is the same as the length of the thread on the main shaft. The number of external teeth of the driven gear is three times the number of external teeth of the driving gear. A rotating shaft is arranged on the driving gear. The rotating disk is fixedly connected to the rotating shaft and is located at one end of the rotating shaft. The rotating shaft is rotatably connected to the C-shaped plate and is located inside the C-shaped plate, and the driving gear is in transmission connection with the driven gear and is located above the driven gear. The C-shaped plate is fixedly connected to the support plate and is located above the support plate. By adopting a transmission method of a small gear driving a large gear, a labor-saving effect can be achieved. Then, the rotating disk can facilitate the rotation of the driving gear, and thus the hands of the operator are not easily caused friction injuries. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is a side view of the first embodiment of the present utility model.

[0015] Figure 2 is the Figure 1 cross-sectional view taken along line A-A of the present utility model.

[0016] Figure 3 is the Figure 2 cross-sectional view taken along line B-B of the present utility model.

[0017] Figure 4 It is a three-dimensional perspective view of the second embodiment of the present utility model.

[0018] Figure 5 It is the front view of the second embodiment of the present utility model.

[0019] Figure 6 It is of the present utility model Figure 5 The cross-sectional view taken along line C-C.

[0020] 101 - Threaded sleeve, 102 - Spindle, 103 - Driven gear, 104 - Outer sleeve, 105 - Through groove, 106 - Support plate, 107 - Rotating disk, 108 - Driving gear, 109 - C-shaped plate, 110 - Rotating shaft, 111 - Rotating rod, 112 - Limiting ring, 201 - Pulling ring, 202 - Knob, 203 - Screw rod, 204 - Anti-slip sleeve, 205 - Handle, 206 - Threaded groove. Specific implementation manner

[0021] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0022] First embodiment:

[0023] Please refer to Figures 1 to 3 where Figure 1 is the side view of the first embodiment of the present utility model, Figure 2 is of the present utility model Figure 1 The cross-sectional view taken along line A-A, Figure 3 is of the present utility model Figure 2 The cross-sectional view taken along line B-B.

[0024] The present utility model provides a pump one-way valve disassembly tooling, including a threaded sleeve 101, a spindle 102 and an auxiliary mechanism. The auxiliary mechanism includes a rotating disk 107, a driving gear 108 and a C-shaped plate 109. Through the foregoing solution, the technical problem that when the outer sleeve 104 gradually expands, the rotation of the nut becomes very difficult, so the operator needs to increase the grasping force and rotational force on the nut, and thus it is easy to cause friction injuries to the operator's hand is solved.

[0025] For this specific embodiment, a driven gear 103 is provided on the outer side of the threaded sleeve 101. One end of the threaded sleeve 101 is provided with an outer sleeve 104. One end of the outer sleeve 104 has a plurality of through slots 105. And one end of the outer sleeve 104 and one end of the main shaft 102 are both conically arranged. The main shaft 102 has threads. The other end of the main shaft 102 is provided with a support plate 106. The threaded sleeve 101 is threadedly connected to the main shaft 102 and sleeved on the threaded portion. By inserting one end of the main shaft 102 into the inner hole of the one-way valve seat and then fixing the support plate 106, it is avoided that the main shaft 102 moves with the rotation of the driven gear 103 during the pulling process. After the main shaft 102 is positioned, then rotate the driven gear 103 to push the outer sleeve 104 to move downward. Because one end of the main shaft 102 is conically arranged and because the through slots 105 are provided on the outer sleeve 104, it is beneficial for the bottom of the outer sleeve 104 to expand outward. The combined outer diameter of the main shaft 102 and the outer sleeve 104 can be expanded, tightly locking the inner hole of the one-way valve seat. Relying on friction, this design can firmly grasp the one-way valve seat. Pull the support plate 106 forcefully, and the one-way valve seat can be pulled out, realizing the damage-free, easy and quick disassembly of the one-way valve seat. This design has the advantages of simple structure, convenient use, low manufacturing cost, easy maintenance and strong practicability. At the same time, it can be applied to the disassembly of similar mechanisms, facilitating the grasping of cylindrical hole parts with smooth inner walls, and has a wide range of applications.

[0026] Among them, the length of the driving gear 108 is the same as the length of the threaded portion on the main shaft 102. The number of outer teeth of the driven gear 103 is 3 times the number of outer teeth of the driving gear 108. A rotating shaft 110 is provided on the driving gear 108. The rotating disk 107 is fixedly connected to the rotating shaft 110 and is located at one end of the rotating shaft 110. The rotating shaft 110 is rotatably connected to the C-shaped plate 109 and is located inside the C-shaped plate 109. And the driving gear 108 is in transmission connection with the driven gear 103 and is located above the driven gear 103. The C-shaped plate 109 is fixedly connected to the support plate 106 and is located above the support plate 106. By adopting the transmission method of a small gear driving a large gear, the effect of saving effort can be achieved. And then through the rotating disk 107, it is convenient to rotate the driving gear 108, and thus it is not easy to cause frictional injuries to the hands of the operator.

[0027] Secondly, a plurality of rotating rods 111 are provided on the outer side of the rotating disk 107. Through the rotating rods 111, it is convenient to rotate the rotating disk 107, thus achieving the effect of saving effort while avoiding frictional injuries to the hands of the operator.

[0028] Again, two limiting rings 112 are provided on the rotating shaft 110, and the limiting rings 112 are also located within the C-shaped plate 109. The stability of the rotation of the rotating shaft 110 within the C-shaped plate 109 can be improved through the limiting rings 112.

[0029] When using the present utility model to drive the driven gear 103, by holding the rotating rod 111 and rotating the rotating disk 107, the rotating shaft 110 is driven to rotate. The driven gear 103 rotates under the drive of the rotating shaft 110. By adopting the transmission method of a small gear driving a large gear, the effect of labor saving can be achieved. Moreover, the rotating disk 107 facilitates the rotation of the driving gear 108, and thus the hands of the operator are not easily caused by friction injuries. In this way, the technical problem that when the outer sleeve 104 gradually expands, the rotation of the nut becomes very difficult, and thus the operator needs to increase the grasping force and rotational force on the nut, which is likely to cause friction injuries to the hands of the operator, is solved.

[0030] The second embodiment is as follows:

[0031] On the basis of the first embodiment, please refer to Figures 4 to 6 , where Figure 4 is the three-dimensional perspective view of the second embodiment of the present utility model, Figure 5 is the front view of the second embodiment of the present utility model, Figure 6 is the Figure 5 cross-sectional view taken along the C-C line of the present utility model.

[0032] The present utility model provides a pump one-way valve disassembly tooling, which further includes a holding mechanism and a pulling ring 201. The holding mechanism includes a knob 202, a screw 203, an anti-slip sleeve 204, and a grip 205.

[0033] For this specific embodiment, the holding mechanism is fixedly connected to the support plate 106 and is located below the support plate 106. Through the cooperation of the holding mechanism and the support plate 106, it can be avoided that the main shaft 102 moves along with the rotation of the driven gear 103 during the pulling process.

[0034] Wherein, the pulling ring 201 is fixedly connected to the support plate 106 and is located on the end face of the support plate 106 away from the main shaft 102. Through the pulling ring 201, it is convenient to pull the whole device, thereby pulling out the one-way valve.

[0035] Secondly, one end of the grip 205 has a threaded groove 206. The knob 202 is fixedly connected to the screw rod 203 and is located at one end of the screw rod 203. The screw rod 203 is threadedly connected to the grip 205 and is located within the threaded groove 206. The anti-slip sleeve 204 is sleeved on the grip 205, and the knob 202 abuts against the anti-slip sleeve 204 and is located at one end of the anti-slip sleeve 204. The grip 205 is fixedly connected to the support plate 106 and is located below the support plate 106. By rotating the rotation, the screw rod 203 is removed from the threaded groove 206, and at this time, it is convenient to replace the damaged anti-slip sleeve 204.

[0036] When using the pump one-way valve disassembly tooling of this embodiment, through the cooperation of the holding mechanism and the support plate 106, it can be avoided that the main shaft 102 moves with the rotation of the driven gear 103 during the pulling process. The pulling ring 201 can facilitate the overall pulling of the device, thereby pulling out the one-way valve. Rotating the rotation removes the screw rod 203 from the threaded groove 206, and at this time, it is convenient to replace the damaged anti-slip sleeve 204.

[0037] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A pump check valve disassembly tooling, comprising a threaded sleeve and a main shaft. A driven gear is arranged on the outer side of the threaded sleeve. One end of the threaded sleeve is provided with an outer sleeve. One end of the outer sleeve has a plurality of through grooves, and one end of the outer sleeve and one end of the main shaft are both conically arranged. The main shaft has threads, and the other end of the main shaft is provided with a support plate. The threaded sleeve is threadedly connected to the main shaft and sleeved on the threaded part, and is characterized in that, it further comprises an auxiliary mechanism; The auxiliary mechanism includes a rotating disk, a driving gear and a C-shaped plate. The length of the driving gear is the same as the length of the threaded part on the main shaft. The number of outer teeth of the driven gear is 3 times the number of outer teeth of the driving gear. A rotating shaft is arranged on the driving gear. The rotating disk is fixedly connected to the rotating shaft and is located at one end of the rotating shaft. The rotating shaft is rotatably connected to the C-shaped plate and is located inside the C-shaped plate, and the driving gear is in transmission connection with the driven gear and is located above the driven gear. The C-shaped plate is fixedly connected to the support plate and is located above the support plate.

2. The pump check valve disassembly tooling according to claim 1, characterized in that, a plurality of rotating rods are arranged on the outer side of the rotating disk.

3. The pump check valve disassembly tooling according to claim 2, characterized in that, two limiting rings are arranged on the rotating shaft, and the limiting rings are also located inside the C-shaped plate.

4. The pump check valve disassembly tooling according to claim 3, characterized in that, the pump check valve disassembly tooling further comprises a holding mechanism, and the holding mechanism is fixedly connected to the support plate and is located below the support plate.

5. The pump check valve disassembly tooling according to claim 4, characterized in that, the pump check valve disassembly tooling further comprises a pulling ring, and the pulling ring is fixedly connected to the support plate and is located on the end face of the support plate away from the main shaft.

6. The pump check valve disassembly tooling according to claim 5, characterized in that, the holding mechanism includes a knob, a screw rod, an anti-slip sleeve and a grip. One end of the grip has a threaded groove. The knob is fixedly connected to the screw rod and is located at one end of the screw rod. The screw rod is threadedly connected to the grip and is located in the threaded groove. The anti-slip sleeve is sleeved on the grip, and the knob abuts against the anti-slip sleeve and is located at one end of the anti-slip sleeve. The grip is fixedly connected to the support plate and is located below the support plate.

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