Height-adjustable net blocking device

Abstract

The utility model provides a height-adjustable blocking device, and relates to the technical field of volleyball blocking devices. The structures on the two gravity bases are consistent; and an inner groove is formed in the upper end of the gravity base. The height of the blocking net can be adjusted up and down according to the height of a person, people of different heights can use the blocking net conveniently, the blocking net can be rolled and stored in the protection box after being used up, external sundries or rainwater cannot fall on the blocking net, the sundries or other people cannot pull the blocking net, the blocking net is protected, the service life of the blocking net is prolonged, and the use safety of people is improved. The problems that when a blocking device is installed at the outer empty space for use, people of different ages need to play volleyball to do physical exercise, the position of a blocking net needs to be adjusted up and down, otherwise, short students cannot play volleyball conveniently through the blocking device, and the blocking net needs to be folded after being used, so that the use is inconvenient are solved. Otherwise, the problem of damage caused by collision or pulling of foreign objects due to exposure all the year round can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of volleyball net blocks, in particular to a height-adjustable net block. Background Art

[0002] At present, volleyball training generally adopts a real-person sparring system. The labor intensity of the sparring is very high. Due to the limitations of physical fitness and reaction speed, the training effect is affected. When doing single-group training in volleyball, it is necessary to use blocking equipment for assistance. The existing volleyball training blocking frame is mainly a simple bolt-fixed frame structure, and its height is not adjustable. It is difficult to meet the needs of people of different heights. In addition, the disassembly and assembly are cumbersome, the convenience is poor, and the requirements for the venue are strict, which is not conducive to the promotion of interest in volleyball, thereby causing a decrease in the number of people in this activity.

[0003] When a volleyball net is used outdoors, since the net is installed in an open space outside and people of different ages need to play volleyball to exercise, the position of the net needs to be adjusted up and down. Otherwise, it will be inconvenient for shorter students to use the net to play volleyball, and the net needs to be put away after use, otherwise it will be damaged by being exposed to the outside all year round and being hit or pulled by foreign objects. Utility Model Content

[0004] The disclosed embodiment relates to a height-adjustable net. When the net is installed outside for use, an individual can adjust the height of the net up and down according to his or her height, so that people of different heights can use it conveniently. The net can also be rolled up and stored in a protective box after use, so that external debris or rainwater cannot fall on the net, and debris or outsiders cannot pull the net, thereby protecting the net and extending its service life.

[0005] In a first aspect of the present disclosure, a height-adjustable screen is provided, which specifically comprises: a gravity base; the structures on the two gravity bases are consistent; an inner groove is provided at the upper end of the gravity base; universal wheels are respectively installed at the four corners of the bottom of the gravity base; a vertically upward fixed vertical plate A is fixedly installed at the top of the right gravity base, and a through rectangular hole is provided in the middle of the fixed vertical plate A;

[0006] A vertically upward fixed vertical plate B is fixedly installed on the top of the left gravity base; a protective box is slidably installed on the left wall of the fixed vertical plate A, and a through rod hole is opened at the right end of the inner cavity side wall; protective covers are respectively installed at the upper and lower ends of the protective box, and through screws are respectively inserted and rotated at the four corners of the protective cover; through circular holes are respectively opened in the middle of the two protective covers;

[0007] The right side wall of the protection box is fixedly installed with guide strips parallel to each other; the middle of the left end of the protection box is provided with a through-opening; a rotating shaft is installed in the middle of the inner cavity of the protection box, and a retaining ring is rotatably installed at the lower end of the rotating shaft, a net roller is installed in the middle of the annular side wall of the rotating shaft, a control plate is fixedly installed at the top of the rotating shaft, and short columns are evenly installed on the control plate, a blocking net is wrapped around the net roller, a connecting plate is fixedly sewn at the left end of the blocking net, a threaded plug rod is fixedly installed on the left side wall of the connecting plate, and an anti-slip disk is rotatably installed on the threaded plug rod.

[0008] In at least some embodiments, two rows of mutually symmetrical limiting holes are formed on the right side wall of the fixed vertical plate A, and mutually parallel guide grooves are formed on the left side wall of the fixed vertical plate A.

[0009] In at least some embodiments, a row of through holes is provided in the middle of the fixed vertical plate B, a fixed strip is fixedly mounted on the right side wall of the fixed vertical plate A, and a stabilizing groove is provided in the middle of the right side wall of the fixed strip.

[0010] In at least some embodiments, a limiting rod is installed through the rod hole at the right end of the protective box, and a spring is sleeved at the left end of the annular side wall of the limiting rod, a baffle is fixedly installed on the left side wall of the limiting rod, and an anti-slip plate is fixedly installed on the right side wall of the limiting rod.

[0011] In at least some embodiments, a pull ring is fixedly mounted on the right side wall of the anti-slip plate, and mutually symmetrical limiting heads are fixedly mounted on the left side wall of the anti-slip plate.

[0012] The utility model provides a height-adjustable screen, which has the following beneficial effects:

[0013] When the net blocking device of the utility model is in use, the net blocking device is installed outside and used. During the process, the individual can adjust the height of the net up and down according to the height, so that people of different heights can use it conveniently. The net can also be rolled up and stored in a protective box after use, so that foreign debris or rainwater cannot fall on the net, and foreign debris or outsiders cannot pull the net, thereby protecting the net and extending the service life of the net.

[0014] By pulling the net to the left from the retractable opening and pulling the net horizontally, it can be used at any time. After playing volleyball, you can also grab the short column on the control panel and rotate the net on the net roller to reel in the net. At this time, the net will enter the protective box from the retractable opening, so that the net can be rolled up and stored safely when not in use without being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram of the disassembled structure of the protection box and the rotating shaft of the present application is shown;

[0019] Figure 2 The schematic diagram of the lower left front axial structure of the present application is shown;

[0020] Figure 3 The schematic diagram of the upper right front axial structure of the present application is shown;

[0021] Figure 4 A schematic diagram of the explosion structure of the present application is shown.

[0022] Reference numerals list

[0023] 1. Gravity base; 2. Fixed vertical plate A; 201. Limiting hole; 202. Guide groove; 3. Fixed vertical plate B; 301. Plug hole; 302. Fixed strip plate; 303. Stabilizing groove; 4. Protective box; 401. Protective cover; 402. Guide strip; 403. Retractable opening; 404. Limiting rod; 405. Baffle; 406. Anti-slip plate; 407. Pull ring; 408. Limiting head; 5. Rotating shaft; 501. Net roller; 502. Control panel; 503. Blocking net; 504. Connecting plate; 505. Threaded plug rod; 506. Anti-slip plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment 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] Example 1: Please refer to Figures 1 to 4 :

[0026] The utility model proposes a height-adjustable blocking device, comprising: a gravity base 1; the structures on the two gravity bases 1 are consistent; an inner groove is opened at the upper end of the gravity base 1; people playing volleyball are divided into two teams, and important items of the personnel of each team are respectively placed in the inner grooves of the two gravity bases 1 to prevent them from being placed outside and being hit by volleyballs and damaged, and universal wheels are respectively installed at the four corners of the bottom of the gravity base 1; the installation of the universal wheels facilitates the movement of the entire device, and the two gravity bases 1 are placed on the same straight line, and a vertically upward fixed vertical plate A2 is fixedly installed on the top of the right end gravity base 1, and a through rectangular hole is opened in the middle of the fixed vertical plate A2; two right side walls of the fixed vertical plate A2 are opened A row of symmetrical limiting holes 201 are provided, and the left side wall of the fixed vertical plate A2 is provided with mutually parallel guide grooves 202. A vertically upward fixed vertical plate B3 is fixedly installed on the top of the left end gravity base 1; a row of through jacks 301 are provided in the middle of the fixed vertical plate B3, a fixed strip 302 is fixedly installed on the right side wall of the fixed vertical plate A2, and a stabilizing groove 303 is provided in the middle of the right side wall of the fixed strip 302, and a connecting plate 504 is stuck in the stabilizing groove 303, a protective box 4 is slidably installed on the left side wall of the fixed vertical plate A2, and a through rod hole is provided at the right end of the inner cavity side wall; a rotating shaft 5 is installed in the middle of the inner cavity of the protective box 4, and a retaining ring is rotatably installed at the lower end of the rotating shaft 5.

[0027] Among them, protective covers 401 are respectively installed at the upper and lower ends of the protective box 4, and screws are rotated and inserted at the four corners of the protective cover 401; the screws on the protective cover 401 are rotated and inserted on the protective box 4 to fix and restrict the protective cover 401, and the protective cover 401 is used to protect the blocking net 503 in the protective box 4, and the middle parts of the two protective covers 401 are respectively provided with penetrating circular holes; the upper and lower ends of the rotating shaft 5 are respectively inserted in the circular holes of the two protective covers 401, and the right side wall of the protective box 4 is fixedly installed with guide strips 402 parallel to each other; the guide The strip 402 is slidably installed in the guide groove 202. When the protection box 4 slides up and down, the guide strip 402 is restricted by the guide groove 202, and the protection box 4 can only slide up and down to avoid deviation or tilting of the protection box 4 when sliding up and down. In this way, the pulled-out blocking net 503 will also be tilted and cannot be used. A through-opening 403 is opened in the middle of the left end of the protection box 4; a through-limiting rod 404 is installed at the rod hole at the right end of the protection box 4, and a spring is sleeved at the left end of the annular side wall of the limiting rod 404, and the outer end of the limiting rod 404 penetrates the middle of the fixed vertical plate A2 In the rectangular hole, a baffle 405 is fixedly installed on the left wall of the limit rod 404, an anti-dropping plate 406 is fixedly installed on the right wall of the limit rod 404, and a pull ring 407 is fixedly installed on the right wall of the anti-dropping plate 406. When you are ready to adjust the height of the blocking net 503 up and down, grab the pull ring 407 and pull it to the right. At this time, the spring on the limit rod 404 will be squeezed by the baffle 405 and the protection box 4 and shrink. At the same time, the limit head 408 will also be pulled out from the limit hole 201. At this time, grab the protection box 4 and move it up and down to adjust the height, then release the pull ring 407, and the limit The spring on the rod 404 will eject the baffle 405 to the left, and the anti-slip plate 406 will also move to the left. When the anti-slip plate 406 is in contact with the side wall of the fixed vertical plate A2, the limit head 408 will be inserted in the limit hole 201, temporarily fixing and restricting the anti-slip plate 406 and the limit rod 404. At this time, the protective box 4 cannot slide downward due to the support of the limit rod 404, thereby temporarily fixing and restricting the protective box 4. The left side wall of the anti-slip plate 406 is fixedly installed with mutually symmetrical limit heads 408, and the limit heads 408 are inserted in the limit hole 201.

[0028] Among them, a mesh roller 501 is installed in the middle of the annular side wall of the rotating shaft 5, and a control disk 502 is fixedly installed on the top of the rotating shaft 5, and short columns are evenly installed on the control disk 502. The short columns on the control disk 502 are grasped for easy rotation. A blocking net 503 is wrapped around the mesh roller 501, and the blocking net 503 runs through the retractable opening 403. A connecting plate 504 is fixedly sewn at the left end of the blocking net 503. Grab the connecting plate 504 and pull it to the left, pull the blocking net 503 to the left from the retractable opening 403, and then insert the threaded plug rod 505 into the corresponding socket 301. At this time, the connecting plate 504 will be stuck in the stabilizing groove 303, and then the anti-slip disk 506 is rotatably installed on the left end of the threaded plug rod 505. 5 is temporarily fixed and restricted. At this time, the blocking net 503 can be used at any time after being pulled horizontally. A threaded plug rod 505 is fixedly installed on the left side wall of the connecting plate 504, and the threaded plug rod 505 is inserted in the corresponding plug hole 301. An anti-slip disk 506 is rotatably installed on the threaded plug rod 505. An anti-slip groove is provided on the annular side wall of the anti-slip disk 506. The anti-slip groove on the anti-slip disk 506 is grasped and rotated to remove the anti-slip disk 506 from the threaded plug rod 505, and then the control disk 502 is grasped and rotated to reel the blocking net 503 on the net roller 501. At this time, the blocking net 503 will enter the protection box 4 from the retractable opening 403, and the blocking net 503 will stop reeling when the connecting plate 504 is attached to the left side wall of the protection box 4.

[0029] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 4 As shown, the structures on the two gravity bases 1 are consistent; an inner groove is opened at the upper end of the gravity base 1; the inner groove on the gravity base 1 is evenly installed with vertical thin plates to divide the area, and the people playing volleyball are divided into two teams. The important items of each team are placed in the inner grooves of the two gravity bases 1 respectively. At the same time, each team member can also have his own area to store personal items, which is convenient for individuals to take out items after playing volleyball.

[0030] The working principle of this embodiment is as follows: when in use, the two gravity bases 1 are placed on the same straight line. When adjusting the height of the blocking net 503 up and down according to age or height, grab the pull ring 407 and pull it to the right. At this time, the spring on the limit rod 404 will be squeezed by the baffle 405 and the protection box 4 and shrink. At the same time, the limit head 408 will also be pulled out of the limit hole 201. At this time, grab the protection box 4 and move it up and down to adjust the height. Then release the pull ring 407. The spring on the limit rod 404 will eject the baffle 405 to the left, and the anti-slip plate 406 will also move to the left. When the anti-slip plate 406 is attached to the side wall of the fixed vertical plate A2, the limit head 408 will be inserted in the limit hole 201, temporarily fixing and restricting the anti-slip plate 406 and the limit rod 404. At this time, the protection box 4 is The blocking net 503 is then retracted from the opening 403 into the protective box 4.

[0031] In this article, there are a few points to note:

[0032] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0033] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0034] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A height-adjustable screen blocker, comprising: Gravity base (1); The structures on the two gravity bases (1) are consistent; An inner groove is provided at the upper end of the gravity base (1); universal wheels are respectively installed at the four corners of the bottom of the gravity base (1); a vertically upward fixed vertical plate A (2) is fixedly installed at the top of the right end of the gravity base (1), and a through rectangular hole is provided in the middle of the fixed vertical plate A (2); a vertically upward fixed vertical plate B (3) is fixedly installed at the top of the left end of the gravity base (1); it is characterized in that a protective box (4) is slidably installed on the left side wall of the fixed vertical plate A (2), and a through rod hole is provided at the right end of the inner cavity side wall ; The upper and lower ends of the protection box (4) are respectively installed with protection covers (401), and screws are rotatably inserted at the four corners of the protection cover (401); through circular holes are respectively opened in the middle of the two protection covers (401); guide strips (402) parallel to each other are fixedly installed on the right side wall of the protection box (4); a through receiving and releasing opening (403) is opened in the middle of the left end of the protection box (4); a rotating shaft (5) is installed in the middle of the inner cavity of the protection box (4), and a retaining ring is rotatably installed at the lower end of the rotating shaft (5).

2. A height-adjustable screen according to claim 1, characterized in that: Two rows of mutually symmetrical limiting holes (201) are provided on the right side wall of the fixed vertical plate A (2), and mutually parallel guide grooves (202) are provided on the left side wall of the fixed vertical plate A (2).

3. The height-adjustable screen according to claim 1, characterized in that: A row of through-holes (301) is provided in the middle of the fixed vertical plate B (3), a fixed strip plate (302) is fixedly mounted on the right side wall of the fixed vertical plate A (2), and a stabilizing groove (303) is provided in the middle of the right side wall of the fixed strip plate (302).

4. The height-adjustable screen according to claim 1, characterized in that: A limiting rod (404) is installed through the rod hole at the right end of the protection box (4), and a spring is sleeved on the left end of the annular side wall of the limiting rod (404). A baffle (405) is fixedly installed on the left side wall of the limiting rod (404), and an anti-slip plate (406) is fixedly installed on the right side wall of the limiting rod (404).

5. A height-adjustable screen according to claim 4, characterized in that: A pull ring (407) is fixedly mounted on the right side wall of the anti-slip plate (406), and mutually symmetrical limiting heads (408) are fixedly mounted on the left side wall of the anti-slip plate (406).

6. The height-adjustable screen according to claim 1, characterized in that: A net roller (501) is installed in the middle of the annular side wall of the rotating shaft (5), a control disk (502) is fixedly installed on the top of the rotating shaft (5), and short columns are evenly installed on the control disk (502), and a blocking net (503) is wound around the net roller (501).

7. A height-adjustable screen according to claim 6, characterized in that: A connecting plate (504) is fixedly sewn at the left end of the blocking net (503), a threaded plug rod (505) is fixedly mounted on the left side wall of the connecting plate (504), and an anti-slip disc (506) is rotatably mounted on the threaded plug rod (505).

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