A dry powder valve

Abstract

The utility model discloses a dry powder valve, it includes valve body, the upper end of valve body is installed with the valve rod that extends up and down, the lower end fixedly connected with the valve of valve rod, the lower end of valve body is installed with spring seat, and the spring that extends up and down is installed between valve and spring seat, the upper end of valve body is installed with the handle of pressing and the handle of lifting, and the sleeve that goes through up and down is installed to the lower end of valve body, and the spring is contained in the sleeve, and the outer wall of spring lower end is in contact with the inner wall of sleeve, and the valve is inserted from the upper end of sleeve and is in sliding fit with sleeve up and down, and the sliding groove that extends up and down has on the inner wall of sleeve, and the sliding block is protruded on the outer wall of valve, and the sliding block is inserted into the sliding groove and is in sliding fit with sliding groove up and down. The sleeve that goes through up and down is additionally arranged to the lower end of valve body, and the outer wall of spring lower end is in contact with the inner wall of sleeve, preventing the spring lower end from deviating, and the valve is inserted from the upper end of sleeve and is in sliding fit with sleeve, and the sliding block is inserted into the sliding groove after the valve is inserted into the sleeve, forming linear guide, preventing the valve rod lower end from shaking.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher valve technology, specifically a dry powder valve. Background Technology

[0002] Existing dry powder valves generally consist of a valve body, an upper valve stem extending vertically, a valve valve fixedly connected to the lower end of the valve stem, a spring seat at the lower end of the valve body, and a conical spring extending vertically between the valve valve and the spring seat. During use, the following problems arise: the valve stem only contacts the valve body at its upper end and slides vertically against the inner wall of the valve body. However, the valve stem is quite long, and the lower end does not contact the inner wall of the valve body, causing instability during vertical movement and making the valve stem prone to wobbling. Furthermore, the upper end of the spring is fitted over the valve valve, while the lower end rests on a step inside the spring seat. The large gap between the outer side of the spring and the inner wall of the valve body makes the lower end of the spring prone to misalignment. Utility Model Content

[0003] In view of the above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a dry powder valve.

[0004] The technical solution of this utility model is: a dry powder valve, which includes a valve body, an air outlet at the upper left end of the valve body, an air outlet channel communicating with the air outlet inside the valve body, a valve stem extending vertically at the upper end of the valve body, a valve valve for opening or closing the air outlet channel fixedly connected to the lower end of the valve stem, a spring seat at the lower end of the valve body, a vertically extending spring between the valve valve and the spring seat, a pressure handle and a lifting handle at the upper end of the valve body, a vertically penetrating sleeve inserted into the lower end of the valve body, a spring housed in the sleeve, and the outer wall of the lower end of the spring contacting the inner wall of the sleeve, a valve inserted from the upper end of the sleeve and sliding vertically with the sleeve, a vertically extending groove on the inner wall of the sleeve, and a slider protruding on the outer wall of the valve, the slider engaging with the groove and sliding vertically with the groove.

[0005] Furthermore, the spring seat is screwed onto the lower end of the valve body via a threaded connection, and the upper end of the spring seat is fitted over the sleeve.

[0006] Furthermore, the spring seat is vertically continuous, and there is a ring-shaped step in the middle of the spring seat, with the top of the step blocking the bottom of the sleeve.

[0007] Furthermore, the bottom of the spring rests against the top of the step.

[0008] Furthermore, a sliding groove is provided on the inner wall of both the left and right sides of the sleeve, and a slider is provided on the outer wall of both the left and right sides of the valve.

[0009] The advantages of using the dry powder valve provided by this utility model are as follows: a sleeve that runs vertically through the lower end of the valve body is added, and the outer wall of the lower end of the spring contacts the inner wall of the sleeve to prevent the lower end of the spring from shifting; the valve is inserted from the upper end of the sleeve and slides vertically with the sleeve, and after the valve is inserted into the sleeve, the slider is locked into the slide groove to form a linear guide and prevent the lower end of the valve stem from shaking. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram showing the connection between the sleeve and the valve of this utility model.

[0012] As shown in the figure: 1—valve body, 11—air outlet, 12—air outlet channel, 2—valve stem, 3—valve, 31—slider, 4—spring seat, 41—step, 5—spring, 6—pressure handle, 7—lifting handle, 8—sleeve, 81—slide groove. Detailed Implementation

[0013] To provide a more intuitive and complete understanding of the technical solution of this utility model, the following non-limiting features are described in conjunction with the accompanying drawings:

[0014] like Figure 1 , Figure 2 As shown, a dry powder valve includes a valve body 1, an air outlet 11 at the upper left end of the valve body 1, an air outlet channel 12 communicating with the air outlet 11 inside the valve body 1, a valve stem 2 extending vertically at the upper end of the valve body 1, a valve valve 3 for opening or closing the air outlet channel 12 fixedly connected to the lower end of the valve stem 2, a spring seat 4 at the lower end of the valve body 1, a spring 5 extending vertically between the valve valve 3 and the spring seat 4, a pressure handle 6 and a lifting handle 7 at the upper end of the valve body 1, a sleeve 8 extending vertically through the lower end of the valve body 1, the outer wall of the sleeve 8 contacting the inner wall of the valve body 1, the spring 5 being housed in the sleeve 8, and the lower outer wall of the spring 5 contacting the inner wall of the sleeve 8, the valve 3 being inserted from the upper end of the sleeve 8 and sliding vertically with the sleeve 8, a vertically extending groove 81 on the inner wall of the sleeve 8, and a slider 31 protruding from the outer wall of the valve 3, the slider 31 being engaged with the groove 81 and sliding vertically with the groove 81.

[0015] like Figure 1 As shown, the spring seat 4 is screwed onto the lower end of the valve body 1 via a threaded connection, and the upper end of the spring seat 4 is fitted over the sleeve 8. The spring seat 4 is continuous from top to bottom, and has an annular step 41 in the middle of its inner part. The top of the step 41 stops the bottom of the sleeve 8. The step 41 prevents the sleeve 8 from falling off. During installation, the sleeve 8 only needs to be inserted into the lower end of the valve body 1; it does not require a threaded connection, making installation convenient.

[0016] As shown in the figure, the bottom of spring 5 rests against the top of step 41. Step 41 serves not only to block sleeve 8 but also to block the lower end of spring 5. When valve stem 2 moves downward, spring 5 will be compressed.

[0017] like Figure 2 As shown, in order to allow the valve 3 to move stably up and down, a sliding groove 81 is provided on the inner wall of both sides of the sleeve 8, and a slider 31 is provided on the outer wall of both sides of the valve 3. Since the valve 3 is fixed to the lower end of the valve stem 2, and the valve 3 can move up and down stably, the lower end of the valve stem 2 can also move up and down stably.

[0018] The present invention provides a dry powder valve, wherein a sleeve 8 is added to the lower end of the valve body 1, which runs vertically through the valve body 1. The outer wall of the lower end of the spring 5 contacts the inner wall of the sleeve 8 to prevent the lower end of the spring 5 from shifting. The valve 3 is inserted from the upper end of the sleeve 8 and slides vertically with the sleeve 8. After the valve 3 is inserted into the sleeve 8, the slider 31 is engaged in the slide groove 81 to form a linear guide and prevent the lower end of the valve stem 2 from shaking.

[0019] Of course, the above are only preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any simple modifications and equivalent structural changes made based on the contents of the present utility model specification and drawings should also be included within the patent protection scope of the present utility model.

Claims

1. A dry powder valve, comprising a valve body, an air outlet at the upper left end of the valve body, an air outlet channel communicating with the air outlet within the valve body, a vertically extending valve stem mounted at the upper end of the valve body, a valve valve for opening or closing the air outlet channel fixedly connected to the lower end of the valve stem, a spring seat mounted at the lower end of the valve body, a vertically extending spring mounted between the valve valve and the spring seat, and a pressure handle and a lifting handle mounted at the upper end of the valve body, characterized in that: A sleeve that runs vertically through the lower end of the valve body is installed. A spring is housed inside the sleeve, and the outer wall of the lower end of the spring contacts the inner wall of the sleeve. A valve is inserted from the upper end of the sleeve and slides vertically with the sleeve. The inner wall of the sleeve has a vertically extending groove, and a slider is protruding on the outer wall of the valve. The slider is engaged with the groove and slides vertically with the groove.

2. The dry powder valve according to claim 1, characterized in that: The spring seat is screwed onto the lower end of the valve body via a threaded connection, and the upper end of the spring seat is fitted over the sleeve.

3. A dry powder valve according to claim 2, characterized in that: The spring seat is open from top to bottom, and there is a ring-shaped step in the middle of the spring seat. The top of the step stops at the bottom of the sleeve.

4. A dry powder valve according to claim 2, characterized in that: The bottom of the spring rests against the top of the step.

5. A dry powder valve according to claim 1, characterized in that: The sleeve has a groove on the inner wall on both sides, and the valve has a slider on the outer wall on both sides.

Images