An explosion-proof valve applicable to the oil system for hydraulic stacking and retrieval machines

Abstract

The utility model presents an explosion-proof valve applicable to the oil system of a hydraulic stacking and recovery machine. This valve includes an explosion-proof valve located in the cylinder's oil port. The explosion-proof valve consists of a threaded sleeve with holes, a valve seat, a spring, a limiting pin, and a sliding valve. The sliding valve can move up and down and is loosely fixed in the holes of the valve seat. It is a hollow sleeve with radial spaces in the sleeve wall. The limiting pin is installed in the hole of the valve seat and inserted into the space on the sleeve wall of the sliding valve. One end of the spring resists the sliding valve. The utility model relates to the technical field of explosion-proof valves. [Fig 1]

Description

Title of the invention: An explosion-proof valve applicable to the oil system for the hydraulic stacking and retrieving machine The technical field

[0001] The utility model relates to the technical field of explosion-proof valves, in particular an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine. The background technique

[0002] The explosion-proof valve has a simple structure, a compact appearance and a small volume, and can be easily connected to the inlet of the execution unit. Explosion-proof valves can be installed on the oil pipelines of the hydraulic tilting system and the hydraulic leveling system to the oil system for the hydraulic stacking and reclaiming machine. Chinese patent with advertisement number CN202690589U and advertisement date of January 23, 2013 publishes an explosion-proof valve for an oil cylinder. The explosion-proof valve comprises a threaded sleeve with holes, a valve seat, a spring, a limiting pin and a sliding valve. The sliding valve can move up and down. It is a hollow sleeve shape with radial gaps in the sleeve wall. There is an oil groove in the gap.The limiting pin is installed in the hole of the valve seat and inserted into the gap on the wall of the sliding valve sleeve. One end of the spring resists the sliding valve and the other end resists the threaded sleeve with holes. This type of explosion-proof valve for oil cylinder uses the oil inlet to supply oil into the cylinder, but there may be a small amount of impurities in the oil entering through the oil inlet. When these impurities enter the explosion-proof valve, the impurities may accumulate in the valve seat, which will eventually affect the movement of the sliding valve in the valve seat.

[0003] Therefore, the utility model proposes an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine to solve the above-mentioned problems. The contents of the utility model

[0004] In view of the shortcomings of existing technology, the purpose of this utility model is to provide an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine. The explosion-proof valve solves these problems: there may be a small amount of impurities in the oil entering through the oil inlet. When these impurities enter the explosion-proof valve, the impurities can accumulate in the valve seat, which will eventually affect the movement of the sliding valve in the valve seat.

[0005] The utility model achieves the above purpose by the following technical solutions: An explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine comprises the explosion-proof valve arranged in the oil port of the cylinder. The explosion-proof valve consists of a threaded sleeve with holes, a valve seat, a spring, a limiting pin and a sliding valve. The sliding valve can move up and down and is loosely fixed in the holes of the valve seat. It is a hollow sleeve shape with radial gaps in the sleeve wall. There is an oil groove in the gap. The limiting pin is installed in the hole of the valve seat and inserted into the gap on the sleeve wall of the sliding valve. One end of the spring resists the sliding valve and the other end resists the threaded sleeve with holes.An installation barrel is arranged inside the oil port, and a filter net is fixed at the bottom of the installation barrel. The installation barrel and the oil port are detachably connected via a clamping mechanism. Sealing components for sealing and preventing oil leakage are provided under the installation barrel.

[0006] Furthermore, the clamping mechanism comprises a clamping block fixed on the outer periphery of the installation barrel. The inner wall of the oil port is respectively provided with a drop groove, a rotating groove and a clamping groove which are matched with the clamping block, and these three are connected in sequence. A lower ring is fixed on the inner wall of the oil port, and clamping spring rods are fixed on both sides of the upper part of the lower ring. The top of the clamping spring rod is fixed with a smooth protrusion used together with the installation barrel.

[0007] In addition, the sealing components comprise spring-loaded fixing rings fixed under the installation barrel. At the same time, a sealing ring is fixed under the installation barrel.

[0008] Furthermore, the compression spring is fixed between the outer periphery of the spring fixing ring and the inner side of the sealing ring, and the outer side of the sealing ring fits the inner wall of the oil hole.

[0009] Further, there are multiple compression springs, and these compression springs are uniformly distributed in an annular shape around the outer periphery of the spring fixing ring.

[0010] In addition, the filter net is a conical net with filter holes on its surface. The beneficial effects

[0011] This application provides an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine. Compared with the existing technology, it has the following beneficial effects:

[0012] 1. This explosion-proof valve, suitable for the oil system for the machine Hydraulic stacking and recovery system, allows impurities to move to the middle of the filter net during oil flow. Eventually, the impurities will accumulate at the bottom of the filter net, which helps reduce the possibility of clogging of the filter net after the impurities accumulate on the filter net, thus facilitating the smooth flow of oil. When there are a lot of impurities accumulated on the filter net, it needs to be cleaned. At this time, press the installation barrel so that the clamping block detaches from the clamping groove and enters the rotating groove. And then, rotate the installation barrel so that the clamping block detaches from the rotating groove and enters the dropping groove.Then remove the installation barrel and empty the impurities from the filter net so that the impurities do not enter the explosion-proof valve or accumulate in the valve seat. This ensures that the slide valve can move normally in the valve seat, and it is also very convenient to clean the impurities on the filter net.

[0013] 2. This explosion-proof valve, suitable for the oil system for the machine hydraulic stacking and recovery system, is equipped with sealing components to prevent oil from flowing through the gap between the installation barrel and the oil port. This helps filter the oil entering the explosion-proof valve. The illustration description

[0014] [Fig.l] is a schematic structural diagram of the utility model;

[0015] [Fig.2] is a partial enlarged view of position A in [Fig.l] of the model of utility;

[0016] [Fig.3] is a partial enlarged view of position B in [Fig.l] of the utility model;

[0017] [Fig.4] is a schematic diagram of the partial structure of the utility model.

[0018] The list of illustration marks: 1 The cylinder, 2 The threaded sleeve with holes, 3 The valve seat, 4 The spring, 5 The limiting pin, 6 The sliding valve, 7 The oil port, 8 The installation barrel, 9 The filter net, 10 The clamping mechanism, 101 The clamping block, 102 The drop groove, 103 The rotating groove, 104 The clamping groove, 105 The bottom ring, 106 The clamping spring rod, 107 The smooth projection, 11 The sealing components, 111 The spring fixing ring, 112 The sealing ring, 113 The compression spring. Specific implementation methods

[0019] The technical solutions in the implementation examples of the utility model will be clearly and completely described below with reference to the illustrations in the implementation examples of the utility model. Obviously, the described implementation examples represent only some, and not all, of the implementation examples of the utility model. Based on the implementation examples of the utility model, all other implementation examples obtained by ordinary technicians in this field without creative efforts fall within the scope of protection of the utility model.

[0020] Please refer to [Fig.l]-4. The utility model provides a technical solution: an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine comprises the explosion-proof valve arranged in the oil port (7) of the cylinder (1). The explosion-proof valve consists of a threaded sleeve with holes (2), a valve seat (3), a spring (4), a limiting pin (5) and a sliding valve (6). The sliding valve (6) can move up and down and is loosely fixed in the holes of the valve seat (3). It is a hollow sleeve shape with radial gaps in the sleeve wall. There is an oil groove in the gap. The limiting pin (5) is installed in the hole of the valve seat (3) and inserted into the gap on the sleeve wall of the sliding valve (6).One end of the spring (4) resists the sliding valve (6) and the other end resists the threaded sleeve with holes (2). There is an installation barrel (8) inside the oil port (7), and both ends of the installation barrel are open. A filter net (9) is fixed at the bottom of the installation barrel (8). The filter net (9) is a conical net with filter holes on its surface, so that impurities can be gathered. The installation barrel (8) and the oil port (7) are detachably connected via a clamping mechanism (10). The sealing components (11) for sealing and preventing oil leakage are provided under the installation barrel (8).

[0021] The clamping mechanism (10) comprises a clamping block (101) fixed on the outer periphery of the installation barrel (8). The inner wall of the oil port (7) is respectively provided with a dropping groove (102), a rotating groove (103) and a clamping groove (104) which are matched with the clamping block (101), and these three are connected in sequence. A lower ring (105) is fixed on the inner wall of the oil port (7), and clamping spring rods (106) are fixed on both sides of the upper part of the lower ring (105). Through the arrangement of the clamping spring rod (106), the clamping block (101) can be pressed against the clamping groove (104). In this way, the installation barrel (8) is positioned to facilitate the timely disassembly and cleaning of the filter net (9). The The top of the clamping spring rod (106) is fixed with a smooth protrusion (107) used in conjunction with the installation barrel (8). The smooth protrusion (107) is in contact with the bottom of the installation barrel (8) and is made of tempered glass. When the smooth protrusion (107) rotates relative to the installation barrel (8), it has the effect of reducing friction.

[0022] The sealing components (11) comprise spring fixing rings (111) fixed under the installation barrel (8). At the same time, a sealing ring (112) is fixed under the installation barrel (8). The compression spring (113) is fixed between the outer periphery of the spring fixing ring (111) and the inner side of the sealing ring (112), so that the sealing ring (112) can be close to the inner wall of the oil port (7) to achieve sealing and prevent oil from flowing out through the gap between the installation barrel (8) and the oil port (7). The outer side of the sealing ring (112) fits the inner wall of the oil port (7). There are multiple compression springs (113), and these compression springs (113) are uniformly distributed in a ring shape around the outer periphery of the spring fixing ring (111).

[0023] At the same time, the contents not described in detail in this application belong to the prior art known to technicians in this field.

[0024] During operation, the oil is filtered through the filter net (9) after entering the installation barrel (8). When impurities accumulate on the filter net (9), the impurities can move to the middle of the filter net (9) during the flow of the oil. Eventually, the impurities will accumulate at the bottom of the filter net (9), which helps to reduce the possibility of clogging of the filter net (9) after the impurities accumulate on the filter net (9), thereby facilitating the smooth flow of the oil. When there are many impurities accumulated on the filter net (9), the filter net (9) must be cleaned. At this time, press the installation barrel (8) so that the clamping block (101) detaches from the clamping groove (104) and enters the rotating groove (103).And then, rotate the installation barrel (8) so that the clamping block (101) detaches from the rotating groove (103) and enters the dropping groove (102). Then, remove the installation barrel (8) and empty the impurities from the filter net (9). When installing the filter net (9), simply reverse the above steps.

[0025] It should be noted that in this article, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or sequence between those entities or operations. Furthermore, the use of the terms "includes," "comprises," or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or equipment that includes a list of items includes not only those items expressly listed, but also includes other items not expressly listed, or even items inherent in the process, method, article or equipment.

[0026] Although the examples of implementation of the utility model have been shown and described, it will be understood that ordinary technicians in this art can make various changes, modifications, substitutions and variations to these examples of implementation without departing from the principles and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

Claims

1. An explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine comprises the explosion-proof valve arranged in the oil port (7) of the cylinder (1). The explosion-proof valve consists of a threaded sleeve with holes (2), a valve seat (3), a spring (4), a limiting pin (5), and a sliding valve (6). The sliding valve (6) can move up and down and is loosely fixed in the holes of the valve seat (3). It is a hollow sleeve shape with radial gaps in the sleeve wall. There is an oil groove in the gap. The limiting pin (5) is installed in the hole of the valve seat (3) and inserted into the gap on the sleeve wall of the sliding valve (6). One end of the spring (4) resists the sliding valve (6) and the other end resists the threaded sleeve with holes (2).It is characterized in that an installation barrel (8) is arranged inside the oil port (7), and a filter net (9) is fixed at the bottom of the installation barrel (8). The installation barrel (8) and the oil port (7) are detachably connected via a clamping mechanism (10). The sealing components (11) for sealing and preventing oil leakage are provided under the installation barrel (8).

2. According to claim 1, an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine is characterized in that: the clamping mechanism (10) comprises a clamping block (101) fixed on the outer periphery of the installation barrel (8). The inner wall of the oil port (7) is respectively provided with a dropping groove (102), a rotating groove (103) and a clamping groove (104) which are matched to the clamping block (101), and these three are connected in sequence. A lower ring (105) is fixed on the inner wall of the oil port (7), and clamping spring rods (106) are fixed on both sides of the upper part of the lower ring (105). The top of the clamping spring rod (106) is fixed with a smooth protrusion (107) used together with the installation barrel (8).

3. According to claim 1, an explosion-proof valve applicable to the oil system for the hydraulic stacking and recovery is characterized in that: the sealing components (11) comprise spring fixing rings (111) fixed under the installation barrel (8). At the same time, a sealing ring (112) is fixed under the installation barrel (8).

4. According to claim 3, an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine is characterized in that: the compression spring (113) is fixed between the outer periphery of the spring fixing ring (111) and the inner side of the sealing ring (112), and the outer side of the sealing ring (112) fits the inner wall of the oil port (7).

5. According to claim 4, an explosion-proof valve applicable to the oil system for the hydraulic stacking and retrieving machine is characterized in that: there are multiple compression springs (113), and these compression springs (113) are uniformly distributed in an annular shape around the outer periphery of the spring fixing ring (111).

6. According to claim 1, an explosion-proof valve applicable to the oil system for the hydraulic stacking and reclaiming machine is characterized in that: the filter net (9) is a conical net provided with filter holes on its surface.

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