Adjustable telescopic guardrail

Abstract

The utility model provides an adjustable telescopic guardrail, comprising a sleeve, a movable tube, a first limiting element and a compression spring, one end of the movable tube being a sleeve end, the sleeve end being used to be inserted into the sleeve to slide in the sleeve along the length direction of the sleeve, the other end of the movable tube being a free end, a plurality of first through holes are sequentially formed on the tube wall of the movable tube along the length direction of the movable tube so that the first limiting element can be inserted into the movable tube, the compression spring is accommodated in the sleeve and the movable tube together, the compression spring is accommodated in one end of the sleeve for fixed connection between the two ends of the sleeve, and the compression spring is accommodated in one end of the movable tube for abutting against a section of the first limiting element inserted into the movable tube. The utility model aims to provide an adjustable telescopic guardrail that can be applied to doors, windows or openings of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of building protection rails, in particular to an adjustable telescopic protection rail. Background Art

[0002] Installing guardrails at doors, windows or openings is an indispensable part of the construction field and an important barrier to ensure the safety of construction workers. In current construction activities, steel pipes and fixed parts are usually used to protect doors, windows and openings. Steel pipes of different lengths need to be fixed and installed at the doors, windows or openings according to the size of the doors, windows or openings. Since the length of the steel pipe cannot be adjusted, it cannot be applied to doors, windows or openings of different sizes.

[0003] Therefore, it is necessary to provide an adjustable telescopic guardrail that can be suitable for doors, windows or openings of different sizes. Utility Model Content

[0004] The main purpose of the utility model is to provide an adjustable telescopic guard rail which can be suitable for doors, windows or openings of different sizes.

[0005] To achieve the above-mentioned purpose, the utility model provides an adjustable telescopic guardrail, comprising a sleeve, a movable tube, a first limiting element and a compression spring, one end of the movable tube being a sleeve end, the sleeve end being used to be inserted into the sleeve to slide in the sleeve along the length direction of the sleeve, the other end of the movable tube being a free end, a tube wall of the movable tube being sequentially formed with a plurality of first through holes along the length direction of the movable tube so that the first limiting element can be inserted into the movable tube, the compression spring being accommodated in the sleeve and the movable tube together, the compression spring being accommodated in one end of the sleeve for being fixedly connected between the two ends of the sleeve, and the end of the compression spring being accommodated in the movable tube for abutting against a section of the first limiting element inserted into the movable tube.

[0006] Preferably, both ends of the sleeve are open, and a partition structure is formed in the middle of the sleeve in the length direction to divide the internal space of the sleeve into a first movable segment and a second movable segment, and compression springs are respectively provided in the first movable segment and the second movable segment, and two movable tubes are provided in a mirror image, namely the first movable tube and the second movable tube, the sleeve end of the first movable tube is used to slide through the first movable segment of the sleeve, and the sleeve end of the second movable tube is used to slide through the second movable segment of the sleeve from the direction away from the first movable tube.

[0007] Preferably, a washer is provided at the free end of the movable tube, one side of the washer is used to be connected to the free end of the movable tube, and the other side of the washer is used to abut against a wall to fix the adjustable telescopic guardrail.

[0008] Preferably, the movable tube further comprises a blocking element, one end of which is connected to the outer wall surface of the movable tube near the free end, and the other end of which extends beyond the free end along the length direction of the movable tube in a direction away from the sleeve, and a section of the blocking element that extends beyond the free end is used to abut against the wall.

[0009] Preferably, the blocking element includes a first pipe fitting and a second pipe fitting which are vertically arranged, the first pipe fitting is vertically arranged to the movable tube, one end of the first pipe fitting is connected to the outer wall surface of a section of the movable tube close to the free end, one end of the second pipe fitting is connected to the other end of the first pipe fitting, and the other end of the second pipe fitting extends away from the sleeve and beyond the movable tube.

[0010] Preferably, a section of the first limiting element that is used to pass through the movable tube is provided with an external thread, and the first through hole is provided with an internal thread that matches the external thread.

[0011] Preferably, the adjustable telescopic guardrail also includes an adjusting element, which includes a slide cylinder, a lever and a second limiting element. The slide cylinder is concentrically arranged in the sleeve, and the slide cylinder is used to slide along the length direction of the sleeve to push the compression spring. The tube wall of the sleeve is provided with a through groove along the length direction of the sleeve. One end of the lever is connected to the slide cylinder, and the other end of the lever passes through the through groove radially along the sleeve. A limiting hole is formed on the side wall of the slide cylinder, and a plurality of second through holes are formed in sequence on the side wall of the sleeve along the length direction of the sleeve. The second limiting element is used to pass through the limiting hole and one of the second through holes to fix the slide cylinder to the sleeve.

[0012] Preferably, two adjusting elements are arranged in the sleeve, wherein one of the adjusting elements is used to slide along the first movable section of the sleeve, and the other adjusting element is used to slide along the second movable section of the sleeve, wherein one of the compression springs is fixedly connected to one of the adjusting elements, and the other compression spring is fixedly connected to the other adjusting element.

[0013] Preferably, a guide rod is concentrically arranged in the sleeve, the middle portion of the guide rod is connected to the partition structure, the compression spring is sleeved on the guide rod, and the slide cylinder is formed with a guide hole for being sleeved on the guide rod.

[0014] Preferably, the gasket is an annular rubber structural member, the gasket is concentrically arranged with the movable tube, the free end of the movable tube extends radially to form a mounting end surface, and the side of the gasket facing the movable tube is connected to the mounting end surface.

[0015] In the technical solution of the utility model, when it is necessary to install an adjustable telescopic guardrail, the first limiting element is inserted into different first through holes of the movable tube according to the size of the window or the opening, so that the length of the compression spring available for movement in the movable tube can be adjusted, so that when the movable tube compresses the compression spring to the limit position, the overall length of the guardrail is different; the compression spring is compressed to the limit position, and then the free end of the movable tube is abutted against one side wall of the window or the opening, and the end of the sleeve facing away from the movable tube is abutted against the other side wall of the window or the opening at a relatively large distance, so that the adjustable telescopic guardrail can be firmly installed on windows or openings of different sizes.

[0016] Specifically, when the first limiting element is inserted into the first through hole near the free end of the movable tube, the length of the movable tube within which the compression spring can move is longer. When the movable tube compresses the compression spring to the limit position, the overall length of the adjustable telescopic guardrail is shorter; otherwise, the overall length of the adjustable telescopic guardrail is longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the utility model's adjustable telescopic guardrail installed on a window;

[0019] Figure 2 This is an exploded view of the adjustable telescopic guardrail (partial);

[0020] Figure 3 A cross-sectional view of the casing.

[0021] Description of Figure Numbers:

[0022] 1-sleeve; 11-first movable section; 12-second movable section; 13-partition structure; 2-movable tube; 21-first through hole; 3-first limiting element; 4-compression spring; 5-washer; 6-blocking element; 7-wall.

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The utility model provides an adjustable telescopic protective railing.

[0030] Please refer to Figures 1 to 3The adjustable telescopic guardrail comprises a sleeve 1, a movable tube 2, a first limiting element 3 and a compression spring 4, one end of the movable tube 2 is a sleeve end, the sleeve end is used to be inserted into the sleeve 1 to slide in the sleeve 1 along the length direction of the sleeve 1, the other end of the movable tube 2 is a free end, a tube wall of the movable tube 2 is sequentially formed with a plurality of first through holes 21 along the length direction of the movable tube 2 so that the first limiting element 3 can be inserted into the movable tube 2, the compression spring 4 is jointly accommodated in the sleeve 1 and the movable tube 2, the compression spring 4 is accommodated in one end of the sleeve 1 for fixed connection between the two ends of the sleeve 1, and the end of the compression spring 4 accommodated in the movable tube 2 is used to abut against a section of the first limiting element 3 inserted into the movable tube 2.

[0031] In the technical solution of the utility model, when it is necessary to install an adjustable telescopic guardrail, the first limiting element 3 is inserted into different first through holes 21 of the movable tube 2 according to the size of the window or the opening, so that the length of the movable tube 2 within which the compression spring 4 can be moved can be adjusted, so that when the movable tube 2 compresses the compression spring 4 to the limit position, the overall length of the adjustable telescopic guardrail is different; compress the compression spring 4 to the limit position, then abut the free end of the movable tube 2 against one side wall of the window or the opening, and abut the end of the sleeve 1 away from the movable tube 2 against the other side wall of the window or the opening at a relatively large distance, so that the adjustable telescopic guardrail can be firmly installed on windows or openings of different sizes.

[0032] Specifically, when the first limiting element 3 is inserted into the first through hole 21 near the free end of the movable tube 2, the length of the movable tube 2 available for the compression spring 4 to move is longer. When the movable tube 2 compresses the compression spring 4 to the limit position, the overall length of the adjustable telescopic guardrail is shorter. Otherwise, the overall length of the adjustable telescopic guardrail is longer.

[0033] Preferably, the sleeve 1 is open at both ends, and a partition structure 13 is formed in the middle of the length direction of the sleeve 1 to divide the internal space of the sleeve 1 into a first movable section 11 and a second movable section 12. Compression springs 4 are respectively arranged in the first movable section 11 and the second movable section 12. The movable tube 2 is mirror-set with two, namely the first movable tube and the second movable tube. The sleeve end of the first movable tube is used to slide through the first movable section 11 of the sleeve 1, and the sleeve end of the second movable tube is used to slide through the second movable section 12 of the sleeve 1 from the direction away from the first movable tube. The two movable tubes 2 and the two compression springs 4 are provided to increase the length adjustment range of the adjustable telescopic guardrail. In this embodiment, the compression spring 4 is used to be fixedly sleeved with a movable sleeve at one end away from the partition structure 13, and the movable sleeve is formed with a circular hole. The first limiting element 3 is used to pass through one of the first through holes 21 and the circular hole to fix the movable sleeve on the movable tube 2.

[0034] Preferably, a washer 5 is provided at the free end of the movable tube 2, one side of the washer 5 is used to connect with the free end of the movable tube 2, and the other side of the washer 5 is used to abut against the wall 7 to fix the adjustable telescopic guardrail. The washer 5 is provided to increase the contact area between the adjustable telescopic guardrail and the wall 7, increase the friction between the adjustable telescopic guardrail and the wall 7, make the adjustable telescopic guardrail more stable, and prevent the free end of the movable tube 2 from directly contacting the wall 7, causing the free end of the movable tube 2 to wear.

[0035] Preferably, the movable tube 2 further comprises a blocking element 6, one end of which is connected to the outer wall surface of the movable tube 2 near the free end, and the other end of which extends beyond the free end along the length direction of the movable tube 2 in a direction away from the sleeve 1, and a section of the blocking element 6 beyond the free end is used to abut against the wall surface 7. Specifically, a section of the blocking element 6 beyond the free end is used to abut against the wall surface 7 inside the window (or the wall surface 7 inside the hole), and the blocking element 6 can bear the impact force when the adjustable telescopic guardrail is impacted from the inside of the window to the outside of the window (or from the inside of the hole to the outside), so as to prevent the adjustable telescopic guardrail from falling off.

[0036] Preferably, the blocking element 6 includes a first pipe member and a second pipe member arranged vertically, the first pipe member is arranged vertically to the movable tube 2, one end of the first pipe member is connected to the outer wall surface of a section of the movable tube 2 close to the free end, one end of the second pipe member is connected to the other end of the first pipe member, and the other end of the second pipe member extends away from the sleeve 1 and beyond the movable tube 2. In this embodiment, the blocking element 6 is an L-shaped structural member, the first pipe member and the second pipe member are both square tubes, and the second pipe member faces the outer wall surface of the movable tube 2 for abutting against the wall 7.

[0037] Preferably, a section of the first limiting element 3 for passing through the movable tube 2 is provided with an external thread, and the first through hole 21 is provided with an internal thread adapted to the external thread. In this embodiment, the first limiting element 3 comprises a limiting rod and a knob arranged concentrically, one section of the limiting rod is used to pass through the inside of the movable tube 2, and the other section of the limiting rod is used to pass through the movable tube 2 radially along the movable tube 2, and one end of the knob is fixedly connected to the end of the limiting rod passing through the movable tube 2.

[0038] Preferably, the adjustable telescopic guardrail further comprises an adjusting element, the adjusting element comprises a slide tube, a lever and a second limiting element, the slide tube is concentrically arranged in the sleeve 1, the slide tube is used to slide along the length direction of the sleeve 1 to push the compression spring 4, the tube wall of the sleeve 1 is provided with a through groove along the length direction of the sleeve 1, one end of the lever is connected to the slide tube, the other end of the lever radially passes through the through groove along the sleeve 1, the side wall of the slide tube forms a limiting hole, the side wall of the sleeve 1 is sequentially formed with a plurality of second through holes along the length direction of the sleeve 1, the second limiting element is used to pass through the limiting hole and one of the second through holes to fix the slide tube to the sleeve 1. When the position of the adjusting element needs to be adjusted, the lever is pushed to make the adjusting element slide along the sleeve 1, and when the adjustment and movement are to a suitable position, the second limiting element is passed through the second through hole and the limiting hole, so that the adjusting element can be fixed to the sleeve 1.

[0039] Preferably, two adjusting elements are provided in the casing 1, one of which is used to slide along the first movable section 11 of the casing 1, and the other is used to slide along the second movable section 12 of the casing 1, one of the compression springs 4 is fixedly connected to one of the adjusting elements, and the other compression spring 4 is fixedly connected to the other adjusting element. By providing the adjusting elements, construction personnel can further adjust the length of the adjustable telescopic guardrail by adjusting the position of the adjusting elements in the casing 1 and the position of the fixed end of the compression spring 4 in the casing 1.

[0040] Preferably, a guide rod is concentrically arranged in the sleeve 1, the middle part of the guide rod is connected to the partition structure 13, the compression spring 4 is sleeved on the guide rod, and the slide cylinder is formed with a guide hole for sleeved on the guide rod. The guide rod is arranged to guide the adjustment element to slide along the guide rod, so that the adjustment element slides more stably.

[0041] Preferably, the gasket 5 is arranged concentrically with the movable tube 2, the free end of the movable tube 2 extends radially to form a mounting end surface, and the side of the gasket 5 facing the movable tube 2 is connected to the mounting end surface. In this embodiment, the gasket 5 is a rubber structural member.

[0042] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An adjustable telescopic guardrail, characterized in that: It includes a sleeve, a movable tube, a first limiting element and a compression spring, one end of the movable tube is a sleeve end, the sleeve end is used to be inserted into the sleeve to slide in the sleeve along the length direction of the sleeve, the other end of the movable tube is a free end, a tube wall of the movable tube is sequentially formed with a plurality of first through holes along the length direction of the movable tube so that the first limiting element can be inserted into the movable tube, the compression spring is accommodated in the sleeve and the movable tube together, the compression spring is accommodated in one end of the sleeve for fixed connection between the two ends of the sleeve, and the end of the compression spring accommodated in the movable tube is used to abut against a section of the first limiting element inserted into the movable tube.

2. The adjustable telescopic guardrail according to claim 1, characterized in that: The sleeve is open at both ends, and a partition structure is formed in the middle of the sleeve in the length direction to divide the internal space of the sleeve into a first movable segment and a second movable segment. Compression springs are respectively provided in the first movable segment and the second movable segment. Two movable tubes are provided in mirror image, namely the first movable tube and the second movable tube. The sleeve end of the first movable tube is used to slide through the first movable segment of the sleeve, and the sleeve end of the second movable tube is used to slide through the second movable segment of the sleeve from the direction away from the first movable tube.

3. The adjustable telescopic guardrail according to claim 1, characterized in that: A washer is provided at the free end of the movable tube, one side of the washer is used to be connected to the free end of the movable tube, and the other side of the washer is used to abut against a wall to fix the adjustable telescopic guardrail.

4. The adjustable telescopic guardrail according to claim 2, characterized in that: The movable tube also includes a blocking element, one end of which is connected to the outer wall surface of the movable tube near the free end, and the other end of the blocking element extends beyond the free end along the length direction of the movable tube away from the sleeve, and a section of the blocking element that exceeds the free end is used to abut against the wall.

5. The adjustable telescopic guardrail according to claim 4, characterized in that: The blocking element includes a first pipe member and a second pipe member arranged vertically, the first pipe member is arranged vertically to the movable tube, one end of the first pipe member is connected to the outer wall surface of a section of the movable tube close to the free end, one end of the second pipe member is connected to the other end of the first pipe member, and the other end of the second pipe member extends away from the sleeve and beyond the movable tube.

6. The adjustable telescopic guardrail according to claim 1, characterized in that: The first limiting element is used to pass through a section of the movable tube and is provided with an external thread, and the first through hole is provided with an internal thread adapted to the external thread.

7. The adjustable telescopic guardrail according to claim 2, characterized in that: It also includes an adjusting element, which includes a slide cylinder, a lever and a second limiting element. The slide cylinder is concentrically arranged in the sleeve, and the slide cylinder is used to slide along the length direction of the sleeve to push the compression spring. The tube wall of the sleeve is provided with a through groove along the length direction of the sleeve. One end of the lever is connected to the slide cylinder, and the other end of the lever passes through the through groove radially along the sleeve. A limiting hole is formed on the side wall of the slide cylinder, and a plurality of second through holes are formed in sequence on the side wall of the sleeve along the length direction of the sleeve. The second limiting element is used to pass through the limiting hole and one of the second through holes to fix the slide cylinder on the sleeve.

8. The adjustable telescopic guardrail according to claim 7, characterized in that: Two adjusting elements are arranged in the sleeve, one of which is used to slide along the first movable section of the sleeve, and the other is used to slide along the second movable section of the sleeve, one of the compression springs is fixedly connected to one of the adjusting elements, and the other compression spring is fixedly connected to the other adjusting element.

9. The adjustable telescopic guardrail according to claim 8, characterized in that: A guide rod is concentrically arranged in the sleeve, the middle part of the guide rod is connected to the partition structure, the compression spring is sleeved on the guide rod, and the slide cylinder is formed with a guide hole for being sleeved on the guide rod.

10. The adjustable telescopic guardrail according to claim 3, characterized in that: The gasket is an annular rubber structural member, and is concentrically arranged with the movable tube. The free end of the movable tube extends radially to form a mounting end surface, and a side of the gasket facing the movable tube is connected to the mounting end surface.

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