Sliding window and working machine

Abstract

The present application relates to the field of engineering machinery, provide a sliding window and working machine, including: frame, its lower end inside is equipped with cavity;First sash and second sash, set up on the frame, second sash relative to the first sash sliding;Drainage part, set up in the lower end of first sash and second sash, for the rainwater is introduced into the cavity, drainage part is equipped with with the self-sealing mouth that communicates with the cavity, and the self-sealing mouth is in the normal closed state;Drainage hole, set up in the first side of cavity, for the rainwater in the cavity is discharged. Thus if it rains, rainwater falls on the sash, flows down and flows to the drainage part. Under the action of gravity of rainwater, the self-sealing mouth opens, rainwater flows into the cavity through the self-sealing mouth, and is discharged by drainage hole again, to form drainage channel. At the same time because the self-sealing mouth is in the normal closed state, can effectively avoid the external dust from drainage channel into the cab inside.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction machinery, and in particular to a sliding window and a working machine. BACKGROUND

[0002] In the use of construction machinery, the construction machinery operator no longer just satisfies the basic functions of the machinery itself, and also pays more and more attention to the comfort of the cab environment. Generally, the working environment of the construction machinery is relatively harsh, and therefore whether the cab environment is good or not seriously affects the operating experience of the operator. As part of the cab opening and closing member, the sliding window is one of the important factors affecting the cab environment.

[0003] In the prior art, a drain hole is generally provided on the outside of the cab door sliding window to drain the rainwater falling on the window sash, so as to prevent the accumulated water from seeping into the cab and affecting the space environment inside the cab. However, such a simple drain hole can result in poor sealing of the cab, which can easily cause dust to enter the interior of the cab from the drain hole, resulting in poor air quality inside the cab.

[0004] Therefore, how to solve the problem of poor sealing of the cab caused by the drain hole of the cab door sliding window of the construction machinery in the prior art, which can easily cause dust to enter the interior of the cab from the drain hole, has become an important technical problem to be solved by the technical personnel in the field. SUMMARY

[0005] The present application aims to provide a sliding window and a working machine to solve the problem of poor sealing of the cab caused by the drain hole of the cab door sliding window of the construction machinery in the prior art, which can easily cause dust to enter the interior of the cab from the drain hole.

[0006] In order to achieve the above-mentioned purpose, the present application provides a sliding window, comprising:

[0007] a frame, the lower end of the frame is internally provided with a cavity;

[0008] a first window sash and a second window sash, which are arranged on the frame, the second window sash slides relative to the first window sash;

[0009] a drain member arranged at the lower end of the first window sash and the second window sash, the drain member is used to guide the rainwater into the cavity, the drain member is provided with a self-sealing port through which the water flows, the self-sealing port is in communication with the cavity, and the self-sealing port is in a normally closed state;

[0010] a drain hole arranged on the first side of the cavity, the drain hole is used to drain the rainwater in the cavity.

[0011] According to the sliding window provided by the present application, the drain member comprises:

[0012] a track portion arranged along a length direction of the frame, the track portion being provided with a groove for inserting the first sash and the second sash;

[0013] at least one tapered flow guide portion connected to the track portion, the tapered flow guide portion being in communication with the groove, each of the tapered flow guide portions being spaced apart along the length direction of the frame, a tip of the tapered flow guide portion being provided with the self-sealing opening, the tapered flow guide portion extending into the cavity.

[0014] According to the sliding window provided by the present application, the tapered flow guide portion comprises:

[0015] a first elastic sheet and a second elastic sheet arranged obliquely and oppositely, a distance between the first elastic sheet and the second elastic sheet gradually decreasing along a direction from an upper end to a lower end of the frame, and the lower ends of the first elastic sheet and the second elastic sheet being in abutment to form the self-sealing opening.

[0016] According to the sliding window provided by the present application, the drainage member further comprises:

[0017] a transition connecting portion arranged between the track portion and the tapered flow guide portion, the transition connecting portion being in a cylindrical shape.

[0018] According to the sliding window provided by the present application, further comprises:

[0019] a drainage plate connected to the frame, the drainage plate being provided with a track groove matched with the track portion, the track portion being embedded in the track groove,

[0020] the drainage plate being further provided with a water leakage hole matched with the transition connecting portion, the transition connecting portion passing through the water leakage hole.

[0021] According to the sliding window provided by the present application, the cavity is provided with a first inclined portion, and a height of the first inclined portion gradually increases along a direction from a first side to a second side of the cavity.

[0022] According to the sliding window provided by the present application, a connecting position of the drainage plate and the frame is provided with a second inclined portion, and a height of the second inclined portion gradually increases along a direction from a first side to a second side of the cavity.

[0023] According to the sliding window provided by the present application, further comprises:

[0024] a sealing connecting member arranged between the first sash and the second sash.

[0025] According to the sliding window provided by the present application, the lower ends of the first elastic sheet and the second elastic sheet are correspondingly provided with abutting "S"-shaped curved portions.

[0026] The application also provides a working machine, comprising a cab, wherein the cab is provided with the sliding window according to any one of the above.

[0027] The application provides a sliding window, comprising: a frame, wherein an inner cavity is arranged at a lower end of the frame; a first sash and a second sash, wherein the second sash is arranged on the frame and slides relative to the first sash; a drainage member, wherein the drainage member is arranged at a lower end of the first sash and the second sash, and is used for guiding rainwater into the inner cavity; a self-sealing opening, wherein the self-sealing opening is arranged at the drainage member and is used for allowing water flow; and a drainage hole, wherein the drainage hole is arranged at a first side of the inner cavity and is used for draining rainwater in the inner cavity.

[0028] In this way, if it rains, rainwater falling on the sash flows downward to the drainage member. Under the action of gravity of the rainwater, the self-sealing opening is opened, and the rainwater flows into the inner cavity through the self-sealing opening and is drained to the outside environment through the drainage hole, so as to form a drainage channel. At the same time, when there is no rainwater gravity, the self-sealing opening is in a closed state, and dust cannot pass through the self-sealing opening, so that dust in the outside environment cannot enter the inside of the cab through the drainage channel, the sealing performance of the sliding window is improved, and the air quality in the cab is improved. Thus, the problem that the drainage hole of the sliding window of the cab of the engineering machine causes poor sealing performance of the cab and easily causes dust to enter the inside of the cab through the drainage hole is solved. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0030] Figure 1 is a structural schematic view of the sliding window provided by the application;

[0031] Figure 2 is Figure 1 an A-A sectional view in figure

[0032] Figure 3 is Figure 2 a partial view at D in figure

[0033] Figure 4 is Figure 2 a partial view at E in figure

[0034] Figure 5 is Figure 1 a B-B sectional view in figure

[0035] Figure 6 is Figure 5Partial view at F;

[0036] Figure 7 is Figure 5 Partial view at G;

[0037] Figure 8 is Figure 5 Partial view at H;

[0038] Figure 9 is the front view of the lower end of the frame provided by the present application;

[0039] Figure 10 is the plan view of the lower end of the frame provided by the present application;

[0040] Figure 11 is Figure 9 Sectional view at C-C;

[0041] Figure 12 is the sectional view of the drainage provided by the present application;

[0042] Figure 13 is the partial view of the self-sealing port provided by the present application;

[0043] Figure 14 is the perspective view of the lower end of the frame provided by the present application;

[0044] Reference signs:

[0045] 1: frame; 2: cavity; 3: first sash; 4: second sash; 5: drainage; 6: self-sealing port; 7: drainage hole; 8: drainage plate; 9: second inclined part; 10: sealing connecting piece; 11: lock catch;

[0046] 101: upper edge frame; 102: lower edge frame; 103: left edge frame; 104: right edge frame; 105: buffer; 106: plug;

[0047] 201: first side; 202: second side; 203: first inclined part;

[0048] 501: track part; 502: conical flow guide part; 503: transition connecting part;

[0049] 5011: groove;

[0050] 5021: first elastic sheet; 5022: second elastic sheet;

[0051] 801: track groove; 802: water leakage hole; 803: fastening screw;

[0052] 1001: "U" shaped part; 1002: reinforcing part. DETAILED DESCRIPTION

[0053] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0054] The present application will be described below in conjunction with Figures 1 to 14 The sliding window of the present application is described.

[0055] As Figures 1 to 14 shown, the embodiment of the present application provides a sliding window, which comprises a frame 1, a first sash 3, a second sash 4, a drainage member 5 and a drainage hole 7. Specifically, as Figure 4 shown, the lower end of the frame 1 is internally provided with a cavity 2. Generally, the frame 1 is processed from aluminum profile, and the aluminum profile has the cavity 2 inside, which can serve as a drainage cavity. Specifically, as Figure 1 shown, the upper edge 101, the lower edge 102, the left edge 103 and the right edge 104 enclose to form the frame 1. Among them, the lower edge 102 is provided with the above-mentioned cavity 2. It should be noted that, in terms of the placement position of the sliding window as Figure 1 shown, the up-down direction in the figure is the up-down direction referred to, the left-right direction in the figure is the left-right direction referred to, and the lower part in the figure is the lower end of the frame 1.

[0056] The first sash 3 and the second sash 4 are both mounted on the frame 1, and are arranged in parallel with each other. The second sash 4 can slide relative to the first sash 3. Specifically, as Figure 2 and Figure 5 shown, the frame 1 is provided with two front and rear parallel clamping grooves. The first sash 3 is a fixed glass window, which is fixedly installed in the front clamping groove, and the outside of the first sash 3 is the external atmospheric environment. The second sash 4 is a sliding glass window, which is slidingly installed in the rear clamping groove, and the inside of the second sash 4 is the internal space of the cab. As Figure 1 shown, the first sash 3 is fixed to the left side of the frame 1, and there is an opening between the right side of the first sash 3 and the frame 1. When the second sash 4 is located at the right side of the frame 1, the opening is closed. The opening can be opened by sliding the second sash 4 to the left, which is convenient for the driver to operate.

[0057] In addition, as Figure 1 shown, a lock catch 11 can be installed on the second sash 4, so that the second sash 4 can be locked more reliably when the opening is closed. As Figure 4 and Figure 14As shown, the plug 106 can be installed at the lower end of the frame 1 to block the exposed card slot, which can prevent sundries and rainwater from depositing on the frame 1, and also can play a sealing role to improve the sealing performance of the sliding window. The lock catch 11 can be designed according to the common buckle structure of the existing vehicle, and the plug 106 can be filled and sealed by a rubber plug. It should be noted that, as shown in the placement position of the sliding window, Figure 2 As shown in the placement position of the sliding window, the left-right direction in the figure is the front-rear direction, the left end in the figure is the rear side, the right end is the front side, and the left end of the second sash 4 is the interior space of the cab. As shown in the placement position of the sliding window, Figure 5 As shown in the placement position of the sliding window, the up-down direction in the figure is the front-rear direction, the upper end in the figure is the rear side, the lower end is the front side, the front side of the first sash 3 is the external atmospheric environment, and the rear side of the second sash 4 is the interior space of the cab.

[0058] As shown, Figure 2 The drainage member 5 is arranged at the lower end of the first sash 3 and the second sash 4 to collect and guide the rainwater falling on the sash into the cavity 2. As shown, Figure 12 The drainage member 5 is provided with a self-sealing port 6 through which water flows, and the self-sealing port 6 is in communication with the cavity 2. As shown, Figure 11 The drainage hole 7 is arranged at the first side 201 of the cavity 2, that is, Figure 9 The drainage hole 7 is located at the bottom of the frame 1 and on the front side to drain the rainwater in the cavity 2. Moreover, as shown, Figure 13 When there is no rainwater gravity, the self-sealing port 6 is in a normally closed state.

[0059] That is, when there is no rainwater flowing into the self-sealing port 6, the self-sealing port 6 remains closed. When rainwater flows into the self-sealing port 6, the self-sealing port 6 is opened due to the gravity of the water, and the water flows into the cavity 2 through the self-sealing port 6. In this way, when it rains, the rainwater flows to the drainage member 5. Under the action of gravity, the rainwater opens the self-sealing port 6 and enters the cavity 2, and finally flows to the external environment from the drainage hole 7 on the front side of the frame 1 to realize the drainage function. In the usual use scenario, the self-sealing port 6 is not affected by the gravity of the rainwater and is always in a closed state, thereby cutting off the path of dust from the outside to the inside, preventing the dust from entering the cab through the above-mentioned drainage channel, realizing the dustproof function, and improving the sealing performance of the cab. It should be noted that, as shown in the placement position of the sliding window, Figure 11 As shown in the placement position of the sliding window, the right end in the figure is the first side 201 of the cavity 2 and the outside of the sliding window, and the left end in the figure is the second side 202 of the cavity 2 and the inside of the sliding window.

[0060] In this way, when it rains, rainwater falling on the sash flows downward to the drainage member 5. Under the action of gravity, the self-sealing opening 6 is opened, and the rainwater flows into the cavity 2 through the self-sealing opening 6 and is then discharged to the outside environment through the drainage hole 7, so as to form a drainage channel. At the same time, when there is no rainwater gravity, the self-sealing opening 6 remains closed, and dust cannot pass through the self-sealing opening 6, so that the external dust cannot enter the cab interior through the drainage channel, the sealing performance of the sliding window is improved, and the air quality in the cab is improved. Thus, the problem that the drainage hole of the cab door sliding window of the engineering machinery causes poor sealing of the cab and easy entry of dust from the drainage hole into the cab interior is solved.

[0061] In the embodiment of the present application, the drainage member 5 comprises a track portion 501 and at least one tapered flow guide portion 502. Figure 9 As shown in the drawings, the track portion 501 is arranged along the length direction of the frame 1. Specifically, as shown in the drawings, the track portion 501 is provided with a groove 5011 for inserting the first sash 3 and the second sash 4. Figure 12 The tapered flow guide portion 502 is connected with the track portion 501, and the tapered flow guide portion 502 is in communication with the groove 5011. Each tapered flow guide portion 502 is spaced apart along the length direction of the frame 1, and the tapered flow guide portion 502 is provided with a self-sealing opening 6 at the tip end, and the tapered flow guide portion 502 extends into the cavity 2. In this way, rainwater flows into the groove 5011 along the sash, and then flows into the cavity 2 through the tapered flow guide portion 502 and the self-sealing opening 6, and finally is discharged to the outside. The structure design is reasonable, and is beneficial to realize drainage. It should be noted that, in terms of the placement position of the sliding window as shown in the drawings, the left-right direction in the drawings is the length direction of the frame 1. Figure 9

[0062] In the specific embodiment of the present application, as shown in the drawings, the tapered flow guide portion 502 comprises first and second elastic sheets 5021 and 5022 which are inclined and oppositely arranged. In this way, the two elastic sheets are symmetrically arranged and jointly form the tapered flow guide portion 502. Along the direction from the upper end to the lower end of the frame 1, the distance between the first and second elastic sheets 5021 and 5022 gradually decreases to form a tapered structure, which facilitates drainage. The lower ends of the first and second elastic sheets 5021 and 5022 are in close contact to form the self-sealing opening 6. That is, as shown in the drawings, from top to bottom, the horizontal distance between the left first elastic sheet 5021 and the right second elastic sheet 5022 gradually decreases, until the lower ends of the first and second elastic sheets 5021 and 5022 are in close contact to form the self-sealing opening 6. Figure 12 Figure 12

[0063] ​​​In this way, under the action of rainwater gravity, the two elastic sheets are separated to allow water flow through. Without the action of rainwater gravity, the two elastic sheets are closely attached to prevent dust from passing through. The horizontal distance between the upper ends of the two elastic sheets and the included angle formed by the lower ends can be determined according to actual use requirements to meet the corresponding drainage and dust prevention requirements. It should be noted that, as shown in Figure 12 , the upper and lower directions in the figure are the upper and lower directions, the left and right directions in the figure are the left and right directions, and the horizontal distance direction.

[0064] In the optional embodiment of the application, the lower ends of the first elastic sheet 5021 and the second elastic sheet 5022 are correspondingly provided with closely attached S-shaped curved portions. In this way, by providing an S-shaped extension structure, the sealing performance of the self-sealing opening 6 can be further improved, and it is ensured that dust and the like cannot enter the cab interior through the self-sealing opening 6.

[0065] Further, in the embodiment of the application, as shown in Figure 12 , the drainage member 5 further comprises a transition connecting portion 503. The transition connecting portion 503 is provided between the track portion 501 and the tapered flow guide portion 502, and the transition connecting portion 503 is in a cylindrical shape. In this way, the longitudinal section of the drainage member 5 is in the form of a tapered funnel, which is beneficial for guiding water flow to the cavity 2. In addition, the transition connecting portion 503 facilitates attachment to the frame section bar, and the sealing connection performance is better. The track portion 501, the transition connecting portion 503, and the tapered flow guide portion 502 can be integrally designed and formed, and the drainage member 5 can be optionally made of rubber. It should be noted that, as shown in Figure 12 , the upper and lower directions in the figure are the axial direction of the drainage member 5, the section obtained along the axial direction of the drainage member 5 is the longitudinal section of the drainage member 5, Figure 12 , and the section seen in the figure is the longitudinal section of the drainage member 5.

[0066] In the optional embodiment of the application, the sliding window further comprises a drainage plate 8 connected to the frame 1. Specifically, as shown in Figure 10 , the drainage plate 8 is detachably connected to the frame 1, for example, by fastening screws 803, which facilitates disassembly and assembly of the drainage plate 8. As shown in Figure 11 , the drainage plate 8 is provided with a track groove 801 adapted to the track portion 501, and the track portion 501 is embedded in the track groove 801 by its own tension, which facilitates fixation of the drainage member 5. As shown in Figure 10 , the drainage plate 8 is further provided with a water leakage hole 802 adapted to the transition connecting portion 503, and the transition connecting portion 503 passes through the water leakage hole 802. For example, as shown in Figure 10As shown, the water leakage hole 802 is arranged as a waist-shaped hole, facilitating processing and assembly. The water leakage hole 802 is arranged in multiple, uniformly spaced along the length direction of the frame 1, and the transition connection part 503 and the tapered flow guide part 502 are arranged one by one corresponding to the water leakage hole 802, so that the drainage effect can be improved, and water accumulation can be avoided.

[0067] In this way, the drainage plate 8 is designed separately from the frame 1, facilitating cleaning of debris and avoiding the problem that the debris falling from the integral design of the existing cab door sliding window is not convenient to take out. In addition, the separate design of the drainage plate 8 and the frame 1 also facilitates the replacement of the window sash alone, without the need to replace the entire sliding window assembly, thereby reducing the later maintenance cost.

[0068] As an optional embodiment of the present application, as shown in Figure 11 As shown, the cavity 2 is provided with a first inclined part 203. Moreover, the height of the first inclined part 203 gradually increases along the direction from the first side 201 to the second side 202 of the cavity 2, that is, along the right-to-left direction in the figure. Figure 11 In this way, the bottom of the cavity 2 is designed to be inclined, forming a structure with high inside and low outside, so that the rainwater flows to one side of the drainage hole 7, facilitating the drainage of rainwater, and in particular, preventing the rainwater from overflowing into the cab when the rainwater is too large. It should be noted that, in terms of the placement position of the sliding window as shown in Figure 11 , the left-right direction in the figure is the left-right direction, the up-down direction in the figure is the height direction of the first inclined part 203, and the lower end in the figure is the bottom of the cavity 2.

[0069] Further, in the embodiment of the present application, as shown in Figure 11 The connection position of the drainage plate 8 and the frame 1 is provided with a second inclined part 9. Moreover, the height of the second inclined part 9 gradually increases along the direction from the first side 201 to the second side 202 of the cavity 2, that is, along the right-to-left direction in the figure. Figure 11 In this way, the connection position of the drainage plate 8 and the frame 1 is designed as an inclined surface structure, so that the inside of the joint is higher than the outside, and if there is water remaining in the gap, it can seep outwards, avoiding water accumulation at the bottom of the frame 1, and the structure design is more reasonable. It should be noted that, in terms of the placement position of the sliding window as shown in Figure 11 , the left-right direction in the figure is the left-right direction, and the up-down direction in the figure is the height direction of the second inclined part 9.

[0070] Since the second window sash 4 can slide relative to the first window sash 3, there is a movement gap between the two, therefore, in order to improve the sealing performance of the sliding window assembly, in the specific embodiment of the present application, as shown in Figure 5As shown, the sliding window further comprises a sealing connector 10 arranged between the first sash 3 and the second sash 4. In this way, the sealing connector 10 can achieve airtight connection between the first sash 3 and the second sash 4, preventing air leakage and water leakage from the gap between the two, playing a role of wind and rain blocking, thereby improving the sealing performance of the cab.

[0071] Specifically, the sealing connector 10 can be made of rubber. As shown, Figure 8 As shown, the sealing connector 10 comprises a "U" shaped part 1001 and a reinforcing part 1002 arranged in sequence from right to left. The "U" shaped part 1001 is in contact with the first sash 3 and the second sash 4 respectively, and the opening of the "U" shaped part 1001 is right, arranged outward. If it is attacked by wind and rain, under the action of wind force, the "U" shaped part 1001 can be deformed to make the "U" shaped part 1001 more closely adhere to the sash, thereby improving the sealing connection performance of the "U" shaped part 1001. The reinforcing part 1002 is connected with the "U" shaped part 1001 and is located on the inner side of the "U" shaped part 1001, i.e. arranged on the left side of the "U" shaped part 1001, which can not only improve the sealing performance of the sealing connector 10, but also improve the overall structural strength of the sealing connector 10. Among them, the "U" shaped part 1001 and the reinforcing part 1002 can be integrally formed. It should be noted that, as shown, Figure 8 As shown, the left and right directions in the figure are the left and right directions, and the left side in the figure is the inner side and the right side is the outer side.

[0072] In addition, as shown, Figure 3 The buffer 105 is installed in the clamping groove of the upper frame 101, and the first sash 3 and the second sash 4 are clamped into the slot of the buffer 105. Similarly, as shown, Figure 6 The buffer 105 is installed in the clamping groove of the left frame 103. As shown, Figure 7 The buffer 105 is installed in the clamping groove of the right frame 104. Among them, the buffer 105 can be made of rubber, and the buffer 105 is embedded in the clamping groove of the aluminum profile frame 1 by its own tension. In this way, the frame 1 is installed with the buffer 105 around, which can play a sealing and buffering role, protect the sash and improve the sealing performance of the sliding window assembly.

[0073] In summary, the sliding window provided by the present application is described in detail in combination with the above-mentioned various embodiments. The sliding window provided by the present application is suitable for the cab door of the construction machinery, and specifically comprises a frame 1, a first sash 3, a second sash 4, a drainage member 5, a self-sealing opening 6, a drainage hole 7, a drainage plate 8, a sealing connecting member 10, and a lock catch 11. The frame 1 is an aluminum profile frame, the first sash 3 is a fixed glass, the second sash 4 is slidable relative to the first sash 3, and the lock catch 11 is installed on the second sash 4. The frame 1 is provided with a clamping groove, a buffer member 105 is installed in the clamping groove, and the first sash 3 and the second sash 4 are inserted into the buffer member 105. The material of the buffer member 105 is rubber, which serves to buffer and seal. The sealing connecting member 10 is installed between the first sash 3 and the second sash 4, and the material of the sealing connecting member 10 is rubber, which serves to block rain and the like. As shown in FIG. 2, the lower end of the frame 1 has a cavity 2 inside, which serves as a drainage cavity of the sliding window. The first side 201 of the cavity 2, i.e., the outside of the cavity 2, is provided with the drainage hole 7 for external drainage. Figure 4

[0074] The frame 1 is provided with the drainage plate 8, which is fixed on the aluminum profile frame 1 by fastening screws 803. The frame 1 is provided with two drainage members 5 side by side at the bottom, and the material of the drainage members 5 is rubber. The drainage member 5 is designed to be integrally formed and specifically comprises a track portion 501, a plurality of transition connecting portions 503, and a plurality of tapered flow guide portions 502. The first sash 3 and the second sash 4 are inserted into the grooves 5011 of the track portion 501, the track portion 501 is embedded in the track groove 801 on the drainage plate 8 by its own tension, the transition connecting portion 503 passes through the waist-shaped water leakage hole 802 on the drainage plate 8, and the tapered flow guide portion 502 extends into the cavity 2. The tapered flow guide portion 502 comprises the first elastic sheet 5021 and the second elastic sheet 5022 which are obliquely and oppositely arranged, and the lower end of the tapered flow guide portion 502 is provided with the self-sealing opening 6. Under the action of rainwater gravity, the self-sealing opening 6 is opened to drain water. When there is no rainwater gravity, the self-sealing opening 6 is in a normally closed state to block dust and the like. The transition connecting portion 503, the tapered flow guide portion 502, and the water leakage hole 802 are correspondingly arranged. Further, the lower end of the first elastic sheet 5021 and the second elastic sheet 5022 can be correspondingly provided with a “S”-shaped bending portion to further improve the sealing performance of the self-sealing opening 6.

[0075] In addition, the bottom of the cavity 2 is provided with the first inclined portion 203, so that the inside of the cavity 2 is higher than the outside, which can prevent rainwater from overflowing into the cab when the rainwater is too large. Similarly, the connection position of the drainage plate 8 and the frame 1 is provided with the second inclined portion 9, so that the connection gap forms an inclined surface with the inside being higher than the outside, which facilitates drainage and avoids water accumulation.

[0076] ​In actual use, rainwater flows into the cavity 2 of the aluminum profile frame 1 through the tapered guide structure on the rubber drainage member 5, and then flows out through the drainage hole 7 on the outer side of the aluminum profile frame 1. The bottom surface of the inner cavity of the aluminum profile frame 1 has a certain inclination, so that the inner side of the aluminum profile frame 1 is higher than the outer side, facilitating the drainage of rainwater and preventing rainwater from overflowing into the cab when the rain is too heavy. The self-sealing opening 6 on the rubber drainage member 5 is in a normally closed state, which can prevent dust from entering the cab through the drainage hole 7.

[0077] In this way, when it rains, rainwater falls on the first sash 3 and the second sash 4 and flows downward to the drainage member 5. Under the action of the gravity of the rainwater, the self-sealing opening 6 opens, and the rainwater flows into the cavity 2 through the self-sealing opening 6 and then flows out to the external environment through the drainage hole 7, thereby forming a drainage channel and achieving the drainage function. At the same time, when there is no rainwater gravity, the self-sealing opening 6 is in a normally closed state, and dust cannot pass through the self-sealing opening 6, so that external dust can be effectively prevented from entering the cab through the drainage channel. In this way, the sealing performance of the cab is improved, and the refrigeration and heating effects are significantly improved when the air conditioner is used. In addition, the air quality in the cab is improved, and the comfort and operation experience of the driver are improved. Thus, the drainage and dust prevention requirements of the sliding window are met, and the problem that the drainage hole of the sliding window of the cab of the engineering machinery causes poor sealing performance of the cab and easy entry of dust into the cab through the drainage hole is solved.

[0078] Next, a working machine provided by the present application will be described, and the working machine described below can be correspondingly referred to the sliding window described above.

[0079] The embodiment of the present application also provides a working machine, which comprises a cab, and the cab is provided with the sliding window in each of the above embodiments. In this way, when it rains, rainwater falls on the sash and flows downward to the drainage member 5. Under the action of the gravity of the rainwater, the self-sealing opening 6 opens, and the rainwater flows into the cavity 2 through the self-sealing opening 6 and then flows out to the external environment through the drainage hole 7, thereby forming a drainage channel. At the same time, when there is no rainwater gravity, the self-sealing opening 6 remains in a normally closed state, and dust cannot pass through the self-sealing opening 6, so that external dust can be effectively prevented from entering the cab through the drainage channel, and the sealing performance of the sliding window is improved, and the air quality in the cab is improved. Thus, the problem that the drainage hole of the sliding window of the cab of the engineering machinery causes poor sealing performance of the cab and easy entry of dust into the cab through the drainage hole is solved. The derivation process of the beneficial effects of the sliding window is similar to the derivation process of the beneficial effects of the sliding window described above, and thus will not be described here again. It should be noted that in the embodiments of the present application, the type of the working machine does not constitute a limitation, for example, the working machine can be an excavator, a crane, a loader, etc. In other words, as long as the working machine can use the sliding window in the present application.

[0080] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sliding window, characterized in that, The utility model relates to a push-pull window, comprising: a frame, the lower end of the frame is internally provided with a cavity; a first sash and a second sash are arranged on the frame, the second sash slides relative to the first sash; a drainage member is arranged at the lower end of the first sash and the second sash, the drainage member is used for guiding rainwater into the cavity, the drainage member is provided with a self-sealing opening through which water flows, the self-sealing opening is in communication with the cavity, and the self-sealing opening is in a normally closed state; a drainage hole is arranged at a first side of the cavity, the drainage hole is used for draining rainwater in the cavity; the drainage member comprises: a track portion is arranged along the length direction of the frame, the track portion is provided with a groove into which the first sash and the second sash are inserted; at least one tapered flow guide portion is connected with the track portion, the tapered flow guide portion is in communication with the groove, each tapered flow guide portion is spaced apart along the length direction of the frame, the tapered flow guide portion is provided with the self-sealing opening at the tip end, and the tapered flow guide portion extends into the cavity; further comprising: a drainage plate is detachably connected with the frame, the drainage plate is provided with a track groove matched with the track portion, the track portion is embedded in the track groove, and a second inclined portion is arranged at the connection position of the drainage plate and the frame, and the height of the second inclined portion gradually increases along the direction from the first side to the second side of the cavity.

2. The sliding window according to claim 1, characterized in that, the tapered flow guide portion comprises: first and second elastically flexible sheets are arranged in an inclined and opposite manner, the distance between the first and second elastically flexible sheets gradually decreases along the direction from the upper end to the lower end of the frame, and the lower ends of the first and second elastically flexible sheets are in abutment to form the self-sealing opening.

3. The sliding window according to claim 1, characterized in that, the drainage member further comprises: a transition connecting portion is arranged between the track portion and the tapered flow guide portion, and the transition connecting portion is in a cylindrical shape.

4. The sliding window according to claim 3, characterized in that, the drainage plate is further provided with a water leakage hole matched with the transition connecting portion, and the transition connecting portion passes through the water leakage hole.

5. The sliding window according to claim 1, characterized in that, a first inclined portion is arranged in the cavity, and the height of the first inclined portion gradually increases along the direction from the first side to the second side of the cavity.

6. The sliding window according to claim 1, characterized in that further comprising: a sealing connecting member is arranged between the first sash and the second sash.

7. The sliding window according to claim 2, wherein the lower ends of the first and second elastically flexible sheets are correspondingly provided with abutting "S"-shaped curved portions.

8. A work machine comprising a cab, characterized in that the cab is provided with the push-pull window as claimed in any one of claims 1-7.

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