A straight-through water pipe connecting piece convenient to mount and dismount

Abstract

The utility model relates to the field of water pipe connection especially relates to a straight-through water pipe connecting piece convenient to install and dismount, including two water pipe main parts, the outside of one end of two water pipe main parts common movable installation has connecting assembly, and the inside fixed mounting of connecting assembly has installation and dismounting subassembly, and the inside fixed mounting of connecting assembly has installation reinforcing subassembly, the outside of connecting assembly fixed mounting has first protection subassembly, and the side fixed mounting of first protection subassembly has second protection subassembly, and the top fixed mounting of first protection subassembly has limit component, solved the technical problem of inconvenient installation and dismounting and short service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water pipe connection especially relates to a straight-through water pipe connecting piece convenient to install and dismount. BACKGROUND

[0002] In the field of water pipe connection, when connecting two water pipes, in order to make the two water pipes more tightly, firmly and safely, and at the same time to facilitate installation and dismounting, a straight-through water pipe connecting piece convenient to install and dismount is often needed.

[0003] Therefore, the Chinese patent with the authorization announcement number CN215981343U discloses a quick water pipe joint assembly, which comprises a water pipe joint body, the water pipe joint body comprises a first water pipe connecting piece and a second water pipe connecting piece that are rotationally connected, and a sealing ring is arranged between the first water pipe connecting piece and the second water pipe connecting piece; the sealing ring comprises an abutting upper lip and an abutting lower lip; the abutting upper lip is matched with the first water pipe connecting piece, and the abutting lower lip is matched with the second water pipe connecting piece. By arranging the sealing ring with the abutting upper lip and the abutting lower lip between the first water pipe connecting piece and the second water pipe connecting piece, the abutting upper lip and the abutting lower lip are pressed to open and abut against the first water pipe connecting piece and the second water pipe connecting piece by the action of water, so that the first water pipe connecting piece and the second water pipe connecting piece are rotationally connected, and the sealing property is ensured.

[0004] However, in the patent, when it is installed on two water pipes that need to be connected, it is not very convenient to be pressed to open by the abutting upper lip and the abutting lower lip, which makes it more troublesome when it is installed on two water pipes that need to be connected and when it is dismounted from two water pipes that need to be connected, which increases the difficulty of installation and dismounting. In addition, in the patent, after it is installed on two water pipes that need to be connected, the outside of the connecting piece cannot be protected, which may be damaged when it is accidentally collided, which shortens the service life. UTILITY MODEL CONTENTS

[0005] The utility model provides a straight-through water pipe connecting piece convenient to install and dismount, which can be conveniently installed and dismounted and has a long service life, to solve the problem of inconvenient installation and dismounting and short service life in the prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a straight-through water pipe connecting piece convenient to install and detach, including two water pipe bodies, the outer side of one end of two water pipe bodies is commonly movably installed with the connecting assembly of connecting water pipe body, the inside of connecting assembly is fixedly installed with the installation and detachment assembly of installing connecting assembly and detachable connecting assembly, the inside of connecting assembly is fixedly installed with the installation reinforcing assembly of increasing the firmness of connecting assembly installed on the outer side of one end of two water pipe bodies, the outer side of connecting assembly is fixedly installed with the first protection assembly of protecting connecting assembly, one side of first protection assembly is fixedly installed with the second protection assembly of protecting connecting assembly, the top of first protection assembly is fixedly installed with the limiting assembly of limiting first protection assembly.

[0007] Further, the connecting assembly includes a connecting pipe movably installed on the outer side of one end of the two water pipe bodies, and the front end and the rear end of the connecting pipe are fixedly connected with a limiting pipe.

[0008] Further, the installation and detachment assembly includes a locking snap ring and a stainless steel snap ring, both of which are fixedly installed inside the pipe body of the limiting pipe, the inside of the locking snap ring movably installs a locking buckle, and both the stainless steel snap ring and the locking buckle are movably connected with the water pipe body.

[0009] Further, the installation reinforcing assembly includes a high-temperature-resistant sealing ring and a waterproof rubber ring, both of which are fixedly installed inside the pipe body of the limiting pipe, and both the high-temperature-resistant sealing ring and the waterproof rubber ring are movably connected with the water pipe body.

[0010] Further, the first protection assembly includes a support block fixedly installed on the outer side of the connecting pipe, the bottom of the support block is fixedly connected with a limiting long plate, the front side and the rear side of the support block are both slidably connected with a door-shaped protection plate, the bottom of the door-shaped protection plate is provided with a positioning long groove, one side of the door-shaped protection plate is fixedly connected with a convex long plate slidably installed in the inside of the support block, the other side of the door-shaped protection plate is fixedly connected with a protection vertical plate, and the inside of the protection vertical plate is provided with an arcuate long hole.

[0011] Further, the second protection assembly includes a protection long plate fixedly installed on one side of the support block, the side of the protection long plate away from the support block is fixedly connected with a second positioning cross bar, and the left side and the right side of the protection long plate are both fixedly connected with a first positioning cross bar.

[0012] Further, the limiting assembly comprises a support vertical plate, the bottom of the support vertical plate is fixedly installed on the top of the support block, the support vertical plate is slidably connected with the door-shaped protection plate, a first threaded groove and a second threaded groove are formed in the side of the support vertical plate, a connecting long plate is slidably connected with the side of the support vertical plate, the connecting long plate is fixedly connected with the door-shaped protection plate and the protection vertical plate, a limiting block is fixedly connected with the side of the connecting long plate close to the support vertical plate, the limiting block is slidably installed in the support vertical plate, and a limiting screw is threadedly connected in the connecting long plate.

[0013] The working principle and use principle of the utility model are as follows: in the process of using the device, the device can be installed on two water pipe bodies to be connected through the setting of the two water pipe bodies, the connecting assembly, the installation and dismounting assembly and the installation reinforcing assembly, and in the process of installing the device on the two water pipe bodies to be connected, the device can be installed on the two water pipe bodies to be connected in the mode of clamping, and when the device needs to be dismounted from the two connected water pipe bodies, the device can be dismounted from the two connected water pipe bodies in the mode of cancelling clamping, so that the device can be conveniently installed and dismounted, and in the process of using the device, the outside of the device can be protected after the device is installed on the two water pipe bodies to be connected through the setting of the first protection assembly, the second protection assembly and the limiting assembly, so that the device can avoid damage and shorten the service life, and the device can prolong the service life.

[0014] The utility model has the advantages of:

[0015] Through the setting of the two water pipe bodies, the connecting assembly, the installation and dismounting assembly and the installation reinforcing assembly, the device can be installed on the two water pipe bodies to be connected, the device can be installed on the two water pipe bodies to be connected in the mode of clamping, the device can be dismounted from the two connected water pipe bodies in the mode of cancelling clamping, the device can be conveniently installed and dismounted, and through the setting of the first protection assembly, the second protection assembly and the limiting assembly, the outside of the device can be protected after the device is installed on the two water pipe bodies to be connected, so that the device can prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is the connecting long plate three-dimensional schematic diagram of the utility model;

[0018] Figure 3 It is a three-dimensional schematic view of the door-shaped protection plate of the utility model;

[0019] Figure 4 It is a three-dimensional schematic view of the support vertical plate of the utility model;

[0020] Figure 5 It is a three-dimensional schematic view of the limiting pipe of the utility model;

[0021] Figure 6 It is a three-dimensional schematic view of the locking snap ring of the utility model;

[0022] Figure 7 It is a top view and sectional view schematic diagram of the utility model.

[0023] Mark 1, connecting horizontal rod; 2, connecting long plate; 3, convex long plate; 4, limiting screw; 5, protection vertical plate; 6, door-shaped protection plate; 7, arched long hole; 8, support block; 9, first positioning horizontal rod; 10, protection long plate; 11, second positioning horizontal rod; 12, limiting pipe; 13, water pipe main body; 14, locking snap; 15, support vertical plate; 16, limiting long plate; 17, first threaded groove; 18, second threaded groove; 19, positioning long groove; 20, limiting block; 21, connecting pipe; 22, stainless steel snap ring; 23, high-temperature-resistant sealing ring; 24, waterproof rubber ring; 25, locking snap ring. Specific implementation

[0024] In order to make the technical means, creative features, purposes and effects realized by the embodiments of the application easy to understand, the embodiments of the application will be further described below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the application and do not limit the embodiments of the application.

[0025] Embodiment one: as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7The utility model discloses a through water pipe connecting piece convenient to install and dismount, including two water pipe body 13, connecting pipe 21, locking snap ring 25, stainless steel snap ring 22, high temperature resistance sealing ring 23 and waterproof rubber ring 24, the outer side of one end of two water pipe body 13 is collectively movable installation connecting assembly of water pipe body 13, and connecting assembly includes connecting pipe 21, and the inside movable installation of connecting pipe 21 is located the outer side of one end of two water pipe body 13, and the front end and rear end of connecting pipe 21 are fixedly connected with limiting pipe 12, and the inside fixed mounting of connecting assembly is installed with the installation and dismounting assembly of installation connecting assembly and the detachable connecting assembly, and installation and dismounting assembly includes locking snap ring 25 and stainless steel snap ring 22, and locking snap ring 25 and stainless steel snap ring 22 are fixedly installed in the pipe body inside of limiting pipe 12, and the inside movable installation of locking snap ring 25 is with locking buckle 14, and stainless steel snap ring 22 and locking buckle 14 are movably connected with water pipe body 13, and the inside fixed mounting of connecting assembly is installed with the installation and reinforcement assembly of increasing the firmness of connecting assembly installation on the outer side of one end of two water pipe body 13, and installation and reinforcement assembly includes high temperature resistance sealing ring 23 and waterproof rubber ring 24, and high temperature resistance sealing ring 23 and waterproof rubber ring 24 are fixedly installed in the pipe body inside of limiting pipe 12, and high temperature resistance sealing ring 23 and waterproof rubber ring 24 are movably connected with water pipe body 13, and high temperature resistance sealing ring 23 is located between stainless steel snap ring 22 and waterproof rubber ring 24, through the setting of two water pipe body 13, connecting assembly, installation and dismounting assembly and installation and reinforcement assembly, connecting assembly can be connected to the outer side of one end of two water pipe body 13, installation and dismounting assembly can install connecting assembly and detachable connecting assembly, installation and reinforcement assembly can increase the firmness of connecting assembly installation on the outer side of one end of two water pipe body 13, the utility model discloses a device can be installed to two water pipe body 13 that need to be connected, and in the process that the utility model discloses a device is installed to two water pipe body 13 that need to be connected, the utility model discloses a device can be installed to two water pipe body 13 that need to be connected through the mode of clamping, and when the utility model discloses a device needs to be dismounted from two connected water pipe body 13, the utility model discloses a device can be dismounted from two connected water pipe body 13 through the mode of cancelling clamping, the utility model discloses a device can avoid the difficulty of installation and dismounting due to not being installed to two water pipe body 13 that need to be connected through the mode of clamping, the utility model discloses a device can be conveniently installed and dismounted.

[0026] In use, the initial state of the device is that the limiting screw 4 is screwed with the first threaded groove 17. When the device needs to be used to connect two water pipe bodies 13, the two water pipe bodies 13 are moved at the same time, one end of the water pipe body 13 is inserted into the limiting pipe 12, and the water pipe body 13 slides along the locking buckle 14, the stainless steel clasp 22, the high-temperature-resistant sealing ring 23, the waterproof rubber ring 24 and the connecting pipe 21 respectively. When one end of the two water pipe bodies 13 slides into the center of the connecting pipe 21, the two water pipe bodies 13 are in contact with each other, and the two water pipe bodies 13 are connected. Under the action of the stainless steel clasp 22, the locking buckle 14 and the locking ring 25, one end of the two water pipe bodies 13 can be clamped in the connecting pipe 21, so that the connecting pipe 21 and the limiting pipe 12 can be installed on the two water pipe bodies 13 to be connected by clamping. Under the action of the high-temperature-resistant sealing ring 23 and the waterproof rubber ring 24, the connecting pipe 21 and the limiting pipe 12 can increase the sealing property and the waterproof property, and the two high-temperature-resistant sealing rings 23 can increase the firmness in the connecting pipe 21. At this time, the device can be used to connect two water pipe bodies 13.

[0027] When the device needs to be detached from the two connected water pipe bodies 13, the locking buckle 14 is pressed to make the locking buckle 14 slide along the locking ring 25 and extrude the stainless steel clasp 22. Under the action of the extrusion of the locking buckle 14 on the stainless steel clasp 22, the stainless steel clasp 22 is loosened on the water pipe body 13. At the same time, the two water pipe bodies 13 are pulled to make the water pipe body 13 slide along the connecting pipe 21, the waterproof rubber ring 24, the high-temperature-resistant sealing ring 23, the stainless steel clasp 22 and the locking buckle 14 respectively, so that one end of the two water pipe bodies 13 is separated. When one end of the water pipe body 13 is completely slid out of the connecting pipe 21 and the limiting pipe 12 respectively, the two water pipe bodies 13 are taken out of the connecting pipe 21 and the limiting pipe 12, and the connecting pipe 21 and the limiting pipe 12 can be detached from the water pipe body 13. At this time, the device can be detached from the two connected water pipe bodies 13. In summary, the device can be installed on the two water pipe bodies 13 to be connected, and during the installation of the device on the two water pipe bodies 13 to be connected, the device can be installed on the two water pipe bodies 13 to be connected by clamping. When the device needs to be detached from the two connected water pipe bodies 13, the device can be detached from the two connected water pipe bodies 13 by canceling the clamping, so that the device can avoid increasing the difficulty of installation and detachment by not being installed on the two water pipe bodies 13 to be connected by clamping, and the device can be conveniently installed and detached.

[0028] Example two: as Figure 1 , Figure 2 , Figure 3、 Figure 4 and Figure 7 As shown in figure 1-5: a straight-through water pipe connector convenient to install and dismount, including support block 8, guard long plate 10 and support vertical plate 15, the outer side of the connecting assembly is fixedly installed with the first guard assembly of the guard connecting assembly, the first guard assembly includes support block 8, the inside of support block 8 is fixedly installed on the outer side of connecting pipe 21, the bottom of support block 8 is fixedly connected with limiting long plate 16, the front side and the back side of support block 8 are both slidingly connected with door-shaped guard plate 6, the bottom of door-shaped guard plate 6 is provided with positioning long groove 19, one side of door-shaped guard plate 6 is fixedly connected with convex long plate 3, convex long plate 3 is slidingly installed in the inside of support block 8, the other side of door-shaped guard plate 6 is fixedly connected with guard vertical plate 5, the inside of guard vertical plate 5 is provided with arch-shaped long hole 7, arch-shaped long hole 7 is movably connected with water pipe body 13, one side of the first guard assembly is fixedly installed with the second guard assembly of the guard connecting assembly, the second guard assembly includes guard long plate 10, one side of guard long plate 10 is fixedly installed on one side of support block 8, guard long plate 10 is movably connected with door-shaped guard plate 6, the side of guard long plate 10 away from support block 8 is fixedly connected with second positioning cross rod 11, second positioning cross rod 11 is movably connected with arch-shaped long hole 7, the left side and the right side of guard long plate 10 are both fixedly connected with first positioning cross rod 9, first positioning cross rod 9 is movably connected with positioning long groove 19, the top of the first guard assembly is fixedly installed with the limiting assembly of limiting first guard assembly, the limiting assembly includes support vertical plate 15, the bottom of support vertical plate 15 is fixedly installed on the top of support block 8, support vertical plate 15 is slidingly connected with door-shaped guard plate 6, one side of support vertical plate 15 is respectively provided with first screw groove 17 and second screw groove 18, one side of support vertical plate 15 is slidingly connected with connecting long plate 2, connecting long plate 2 is fixedly connected with door-shaped guard plate 6 and guard vertical plate 5 respectively, the side of connecting long plate 2 close to support vertical plate 15 is fixedly connected with limiting block 20, limiting block 20 is slidingly installed in the inside of support vertical plate 15, the inside of connecting long plate 2 is screwedly connected with limiting screw rod 4, limiting screw rod 4 is screwedly connected with first screw groove 17 and second screw groove 18 respectively, through the setting of the first guard assembly, the second guard assembly and the limiting assembly, the first guard assembly and the second guard assembly can both guard the connecting assembly, the limiting assembly can limit the first guard assembly, after the device is installed on two water pipe bodies 13 needing to be connected, the outside of the device can be guarded, when the device is accidentally collided, the device can avoid damage and shorten the service life, the device can prolong the service life.

[0029] In use, after the device is installed on two water pipe bodies 13 that need to be connected, and when the device does not need to be detached from the two connected water pipe bodies 13, the limiting screw 4 is rotated to disengage the limiting screw 4 from the first threaded groove 17 and to locate one end of the limiting screw 4 inside the connecting long plate 2, the connecting long plate 2 is moved downward, the connecting long plate 2, the limiting block 20, and the connecting cross rod 1 are all slid downward along the support upright plate 15, the connecting cross rod 1 is slid downward along the support upright plate 15, the door-shaped protective plate 6 is slid downward along the support upright plate 15 and the support block 8, respectively, the connecting long plate 2 is slid downward along the support block 8, the protective upright plate 5 is moved downward, when the connecting long plate 2 is moved downward to the maximum distance, the bottom of the limiting block 20 contacts the top of the support block 8, the bottom of the convex long plate 3 contacts the top of the limiting long plate 16, the limiting tube 12 and the locking buckle 14 are both inside the door-shaped protective plate 6, the water pipe body 13 enters the inside of the arc-shaped long hole 7, the protective long plate 10 enters the inside of the door-shaped protective plate 6 and contacts the protective upright plate 5, the second positioning cross rod 11 enters the inside of the arc-shaped long hole 7, the first positioning cross rod 9 enters the inside of the positioning long groove 19, the limiting screw 4 corresponds to the second threaded groove 18, the limiting screw 4 is rotated in the opposite direction to be threadedly connected with the first threaded groove 17, under the action of the support block 8, the connecting tube 21 can be protected, under the action of the door-shaped protective plate 6, the protective upright plate 5, the protective long plate 10, the first positioning cross rod 9, and the second positioning cross rod 11, the door-shaped protective plate 6, the protective upright plate 5, the protective long plate 10, the first positioning cross rod 9, and the second positioning cross rod 11 can form a protective space on the support block 8, and the limiting tube 12 and the locking buckle 14 can be located in the protective space, the limiting tube 12 and the locking buckle 14 can be protected, and the outside of the device can be protected, when the device is accidentally collided, the device can avoid damage.

[0030] In summary, after the device is installed on two water pipe bodies 13 that need to be connected, the outside of the device can be protected, when the device is accidentally collided, the device can avoid damage and shorten the service life, and the device can prolong the service life.

[0031] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A through water pipe connection for easy mounting and dismounting, comprising two water pipe bodies (13), characterized in that: The outer side of one end of the two water pipe bodies (13) is movably provided with a connecting assembly for connecting the water pipe bodies (13), the inner side of the connecting assembly is fixedly provided with a mounting and dismounting assembly for mounting and dismounting the connecting assembly, and the inner side of the connecting assembly is fixedly provided with a mounting and reinforcing assembly for increasing the mounting firmness of the connecting assembly on the outer side of one end of the two water pipe bodies (13); the outer side of the connecting assembly is fixedly provided with a first protection assembly for protecting the connecting assembly, one side of the first protection assembly is fixedly provided with a second protection assembly for protecting the connecting assembly, and the top of the first protection assembly is fixedly provided with a limiting assembly for limiting the first protection assembly.

2. The through-pipe coupling of claim 1, wherein: The connecting assembly comprises a connecting pipe (21), the inner side of the connecting pipe (21) is movably provided with the two water pipe bodies (13) at one end, and the front end and the rear end of the connecting pipe (21) are both fixedly connected with a limiting pipe (12).

3. A through-pipe coupling according to claim 1 or 2, wherein: The mounting and dismounting assembly comprises a locking snap ring (25) and a stainless steel snap ring (22), the inner side of the locking snap ring (25) is movably provided with a locking buckle (14), and the stainless steel snap ring (22) and the locking buckle (14) are movably connected with the water pipe body (13).

4. The through-penetration plumbing connection of claim 3, wherein: The mounting and reinforcing assembly comprises a high-temperature-resistant sealing ring (23) and a waterproof rubber ring (24), the inner side of the high-temperature-resistant sealing ring (23) and the waterproof rubber ring (24) are fixedly provided with the pipe body of the limiting pipe (12), and the high-temperature-resistant sealing ring (23) and the waterproof rubber ring (24) are movably connected with the water pipe body (13).

5. A through-pipe coupling according to claim 1, 2 or 4, wherein: The first protection assembly comprises a supporting block (8), the inner side of the supporting block (8) is fixedly provided with the outer side of the connecting pipe (21), the bottom of the supporting block (8) is fixedly connected with a limiting long plate (16), the front side and the rear side of the supporting block (8) are both slidably connected with a door-shaped protection plate (6), the bottom of the door-shaped protection plate (6) is provided with a positioning long groove (19), one side of the door-shaped protection plate (6) is fixedly connected with a convex long plate (3), the convex long plate (3) is slidably mounted in the inner side of the supporting block (8), the other side of the door-shaped protection plate (6) is fixedly connected with a protection vertical plate (5), and the inner side of the protection vertical plate (5) is provided with an arc-shaped long hole (7).

6. The through-penetration plumbing connection of claim 3, wherein: The first protection assembly comprises a supporting block (8), the inner side of the supporting block (8) is fixedly provided with the outer side of the connecting pipe (21), the bottom of the supporting block (8) is fixedly connected with a limiting long plate (16), the front side and the rear side of the supporting block (8) are both slidably connected with a door-shaped protection plate (6), the door-shaped protection plate (6) is slidably connected with the supporting block (8), one side of the door-shaped protection plate (6) is fixedly connected with a convex long plate (3), the convex long plate (3) is slidably mounted in the inner side of the supporting block (8), the other side of the door-shaped protection plate (6) is fixedly connected with a protection vertical plate (5), and the inner side of the protection vertical plate (5) is provided with an arc-shaped long hole (7).

7. A through-pipe coupling according to claim 1, 2, 4 or 6, wherein: The second protection assembly comprises a protection long plate (10), one side of the protection long plate (10) is fixedly installed on one side of the support block (8), the side, away from the support block (8), of the protection long plate (10) is fixedly connected with a second positioning cross rod (11), and the left side and the right side of the protection long plate (10) are fixedly connected with the first positioning cross rod (9).

8. The through-penetration plumbing connection of claim 5, wherein: The second protection assembly comprises a protection long plate (10), one side of the protection long plate (10) is fixedly installed on one side of the support block (8), the side, away from the support block (8), of the protection long plate (10) is fixedly connected with a second positioning cross rod (11), and the left side and the right side of the protection long plate (10) are fixedly connected with the first positioning cross rod (9).

9. A through-pipe coupling according to claim 1, 2, 4, 6 or 8, wherein: The limiting assembly comprises a support vertical plate (15), the bottom of the support vertical plate (15) is fixedly installed on the top of the support block (8), the support vertical plate (15) is slidably connected with the door-shaped protection plate (6), the side of the support vertical plate (15) is respectively provided with a first threaded groove (17) and a second threaded groove (18), the side of the support vertical plate (15) is slidably connected with a connecting long plate (2), the connecting long plate (2) is fixedly connected with the door-shaped protection plate (6) and the protection vertical plate (5), the side, close to the support vertical plate (15), of the connecting long plate (2) is fixedly connected with a limiting block (20), the limiting block (20) is slidably installed in the support vertical plate (15), and the connecting long plate (2) is threadedly connected with a limiting screw (4) in the inside.

10. The through-penetration plumbing connection of claim 7, wherein: The limiting assembly comprises a support vertical plate (15), the bottom of the support vertical plate (15) is fixedly installed on the top of the support block (8), the side of the support vertical plate (15) is respectively provided with a first threaded groove (17) and a second threaded groove (18), the side of the support vertical plate (15) is slidably connected with a connecting long plate (2), the connecting long plate (2) is fixedly connected with the door-shaped protection plate (6) and the protection vertical plate (5), the side, close to the support vertical plate (15), of the connecting long plate (2) is fixedly connected with a limiting block (20), the limiting block (20) is slidably installed in the support vertical plate (15), and the connecting long plate (2) is threadedly connected with a limiting screw (4) in the inside.

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